From 931a4371d78acd055992265a6f9fd76faff889f6 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 8 Oct 2016 21:31:59 +0200
Subject: [PATCH 01/85] Update mocha to version 3.1.0.

---
 test/vendor/mocha.css |    41 +-
 test/vendor/mocha.js  | 12455 +++++++++++++++++++++++++---------------
 2 files changed, 7783 insertions(+), 4713 deletions(-)

diff --git a/test/vendor/mocha.css b/test/vendor/mocha.css
index 3b82ae9..ec96b00 100644
--- a/test/vendor/mocha.css
+++ b/test/vendor/mocha.css
@@ -148,23 +148,28 @@ body {
   padding: 15px;
   border: 1px solid #eee;
   max-width: 85%; /*(1)*/
+  max-width: -webkit-calc(100% - 42px);
+  max-width: -moz-calc(100% - 42px);
   max-width: calc(100% - 42px); /*(2)*/
   max-height: 300px;
   word-wrap: break-word;
   border-bottom-color: #ddd;
-  -webkit-border-radius: 3px;
   -webkit-box-shadow: 0 1px 3px #eee;
-  -moz-border-radius: 3px;
   -moz-box-shadow: 0 1px 3px #eee;
+  box-shadow: 0 1px 3px #eee;
+  -webkit-border-radius: 3px;
+  -moz-border-radius: 3px;
   border-radius: 3px;
 }
 
 #mocha .test .html-error pre.error {
   border: none;
-  -webkit-border-radius: none;
-  -webkit-box-shadow: none;
-  -moz-border-radius: none;
-  -moz-box-shadow: none;
+  -webkit-border-radius: 0;
+  -moz-border-radius: 0;
+  border-radius: 0;
+  -webkit-box-shadow: 0;
+  -moz-box-shadow: 0;
+  box-shadow: 0;
   padding: 0;
   margin: 0;
   margin-top: 18px;
@@ -185,13 +190,16 @@ body {
   padding: 15px;
   border: 1px solid #eee;
   max-width: 85%; /*(1)*/
+  max-width: -webkit-calc(100% - 42px);
+  max-width: -moz-calc(100% - 42px);
   max-width: calc(100% - 42px); /*(2)*/
   word-wrap: break-word;
   border-bottom-color: #ddd;
-  -webkit-border-radius: 3px;
   -webkit-box-shadow: 0 1px 3px #eee;
-  -moz-border-radius: 3px;
   -moz-box-shadow: 0 1px 3px #eee;
+  box-shadow: 0 1px 3px #eee;
+  -webkit-border-radius: 3px;
+  -moz-border-radius: 3px;
   border-radius: 3px;
 }
 
@@ -212,10 +220,12 @@ body {
   text-align: center;
   background: #eee;
   font-size: 15px;
+  -webkit-border-radius: 15px;
   -moz-border-radius: 15px;
   border-radius: 15px;
-  -webkit-transition: opacity 200ms;
-  -moz-transition: opacity 200ms;
+  -webkit-transition:opacity 200ms;
+  -moz-transition:opacity 200ms;
+  -o-transition:opacity 200ms;
   transition: opacity 200ms;
   opacity: 0.3;
   color: #888;
@@ -261,6 +271,17 @@ body {
 #mocha-stats .progress {
   float: right;
   padding-top: 0;
+
+  /**
+   * Set safe initial values, so mochas .progress does not inherit these
+   * properties from Bootstrap .progress (which causes .progress height to
+   * equal line height set in Bootstrap).
+   */
+  height: auto;
+  -webkit-box-shadow: none;
+  -moz-box-shadow: none;
+  box-shadow: none;
+  background-color: initial;
 }
 
 #mocha-stats em {
diff --git a/test/vendor/mocha.js b/test/vendor/mocha.js
index 84c384b..a1ec48f 100644
--- a/test/vendor/mocha.js
+++ b/test/vendor/mocha.js
@@ -1,11 +1,192 @@
 (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-(function (process){
-module.exports = process.env.COV
-  ? require('./lib-cov/mocha')
-  : require('./lib/mocha');
+(function (process,global){
+/* eslint no-unused-vars: off */
 
-}).call(this,require('_process'))
-},{"./lib-cov/mocha":undefined,"./lib/mocha":14,"_process":51}],2:[function(require,module,exports){
+/**
+ * Shim process.stdout.
+ */
+
+process.stdout = require('browser-stdout')();
+
+var Mocha = require('./lib/mocha');
+
+/**
+ * Create a Mocha instance.
+ *
+ * @return {undefined}
+ */
+
+var mocha = new Mocha({ reporter: 'html' });
+
+/**
+ * Save timer references to avoid Sinon interfering (see GH-237).
+ */
+
+var Date = global.Date;
+var setTimeout = global.setTimeout;
+var setInterval = global.setInterval;
+var clearTimeout = global.clearTimeout;
+var clearInterval = global.clearInterval;
+
+var uncaughtExceptionHandlers = [];
+
+var originalOnerrorHandler = global.onerror;
+
+/**
+ * Remove uncaughtException listener.
+ * Revert to original onerror handler if previously defined.
+ */
+
+process.removeListener = function(e, fn) {
+  if (e === 'uncaughtException') {
+    if (originalOnerrorHandler) {
+      global.onerror = originalOnerrorHandler;
+    } else {
+      global.onerror = function() {};
+    }
+    var i = Mocha.utils.indexOf(uncaughtExceptionHandlers, fn);
+    if (i !== -1) {
+      uncaughtExceptionHandlers.splice(i, 1);
+    }
+  }
+};
+
+/**
+ * Implements uncaughtException listener.
+ */
+
+process.on = function(e, fn) {
+  if (e === 'uncaughtException') {
+    global.onerror = function(err, url, line) {
+      fn(new Error(err + ' (' + url + ':' + line + ')'));
+      return !mocha.allowUncaught;
+    };
+    uncaughtExceptionHandlers.push(fn);
+  }
+};
+
+// The BDD UI is registered by default, but no UI will be functional in the
+// browser without an explicit call to the overridden `mocha.ui` (see below).
+// Ensure that this default UI does not expose its methods to the global scope.
+mocha.suite.removeAllListeners('pre-require');
+
+var immediateQueue = [];
+var immediateTimeout;
+
+function timeslice() {
+  var immediateStart = new Date().getTime();
+  while (immediateQueue.length && (new Date().getTime() - immediateStart) < 100) {
+    immediateQueue.shift()();
+  }
+  if (immediateQueue.length) {
+    immediateTimeout = setTimeout(timeslice, 0);
+  } else {
+    immediateTimeout = null;
+  }
+}
+
+/**
+ * High-performance override of Runner.immediately.
+ */
+
+Mocha.Runner.immediately = function(callback) {
+  immediateQueue.push(callback);
+  if (!immediateTimeout) {
+    immediateTimeout = setTimeout(timeslice, 0);
+  }
+};
+
+/**
+ * Function to allow assertion libraries to throw errors directly into mocha.
+ * This is useful when running tests in a browser because window.onerror will
+ * only receive the 'message' attribute of the Error.
+ */
+mocha.throwError = function(err) {
+  Mocha.utils.forEach(uncaughtExceptionHandlers, function(fn) {
+    fn(err);
+  });
+  throw err;
+};
+
+/**
+ * Override ui to ensure that the ui functions are initialized.
+ * Normally this would happen in Mocha.prototype.loadFiles.
+ */
+
+mocha.ui = function(ui) {
+  Mocha.prototype.ui.call(this, ui);
+  this.suite.emit('pre-require', global, null, this);
+  return this;
+};
+
+/**
+ * Setup mocha with the given setting options.
+ */
+
+mocha.setup = function(opts) {
+  if (typeof opts === 'string') {
+    opts = { ui: opts };
+  }
+  for (var opt in opts) {
+    if (opts.hasOwnProperty(opt)) {
+      this[opt](opts[opt]);
+    }
+  }
+  return this;
+};
+
+/**
+ * Run mocha, returning the Runner.
+ */
+
+mocha.run = function(fn) {
+  var options = mocha.options;
+  mocha.globals('location');
+
+  var query = Mocha.utils.parseQuery(global.location.search || '');
+  if (query.grep) {
+    mocha.grep(query.grep);
+  }
+  if (query.fgrep) {
+    mocha.fgrep(query.fgrep);
+  }
+  if (query.invert) {
+    mocha.invert();
+  }
+
+  return Mocha.prototype.run.call(mocha, function(err) {
+    // The DOM Document is not available in Web Workers.
+    var document = global.document;
+    if (document && document.getElementById('mocha') && options.noHighlighting !== true) {
+      Mocha.utils.highlightTags('code');
+    }
+    if (fn) {
+      fn(err);
+    }
+  });
+};
+
+/**
+ * Expose the process shim.
+ * https://github.com/mochajs/mocha/pull/916
+ */
+
+Mocha.process = process;
+
+/**
+ * Expose mocha.
+ */
+
+global.Mocha = Mocha;
+global.mocha = mocha;
+
+// this allows test/acceptance/required-tokens.js to pass; thus,
+// you can now do `const describe = require('mocha').describe` in a
+// browser context (assuming browserification).  should fix #880
+module.exports = global;
+
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./lib/mocha":14,"_process":67,"browser-stdout":41}],2:[function(require,module,exports){
 /* eslint-disable no-unused-vars */
 module.exports = function(type) {
   return function() {};
@@ -19,7 +200,7 @@ module.exports = function(type) {
 exports.EventEmitter = EventEmitter;
 
 /**
- * Object#hasOwnProperty reference.
+ * Object#toString reference.
  */
 var objToString = Object.prototype.toString;
 
@@ -28,7 +209,7 @@ var objToString = Object.prototype.toString;
  *
  * @api private
  * @param {*} val The value to test.
- * @return {boolean} true if the value is a boolean, otherwise false.
+ * @return {boolean} true if the value is an array, otherwise false.
  */
 function isArray(val) {
   return objToString.call(val) === '[object Array]';
@@ -341,6 +522,12 @@ exports.getWindowSize = function getWindowSize() {
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
 },{}],6:[function(require,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var JSON = require('json3');
+
 /**
  * Expose `Context`.
  */
@@ -419,6 +606,21 @@ Context.prototype.skip = function() {
   return this;
 };
 
+/**
+ * Allow a number of retries on failed tests
+ *
+ * @api private
+ * @param {number} n
+ * @return {Context} self
+ */
+Context.prototype.retries = function(n) {
+  if (!arguments.length) {
+    return this.runnable().retries();
+  }
+  this.runnable().retries(n);
+  return this;
+};
+
 /**
  * Inspect the context void of `._runnable`.
  *
@@ -431,7 +633,7 @@ Context.prototype.inspect = function() {
   }, 2);
 };
 
-},{}],7:[function(require,module,exports){
+},{"json3":54}],7:[function(require,module,exports){
 /**
  * Module dependencies.
  */
@@ -479,14 +681,12 @@ Hook.prototype.error = function(err) {
   this._error = err;
 };
 
-},{"./runnable":35,"./utils":39}],8:[function(require,module,exports){
+},{"./runnable":33,"./utils":38}],8:[function(require,module,exports){
 /**
  * Module dependencies.
  */
 
-var Suite = require('../suite');
 var Test = require('../test');
-var escapeRe = require('escape-string-regexp');
 
 /**
  * BDD-style interface:
@@ -509,7 +709,7 @@ module.exports = function(suite) {
   var suites = [suite];
 
   suite.on('pre-require', function(context, file, mocha) {
-    var common = require('./common')(suites, context);
+    var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;
     context.after = common.after;
@@ -523,12 +723,11 @@ module.exports = function(suite) {
      */
 
     context.describe = context.context = function(title, fn) {
-      var suite = Suite.create(suites[0], title);
-      suite.file = file;
-      suites.unshift(suite);
-      fn.call(suite);
-      suites.shift();
-      return suite;
+      return common.suite.create({
+        title: title,
+        file: file,
+        fn: fn
+      });
     };
 
     /**
@@ -536,11 +735,11 @@ module.exports = function(suite) {
      */
 
     context.xdescribe = context.xcontext = context.describe.skip = function(title, fn) {
-      var suite = Suite.create(suites[0], title);
-      suite.pending = true;
-      suites.unshift(suite);
-      fn.call(suite);
-      suites.shift();
+      return common.suite.skip({
+        title: title,
+        file: file,
+        fn: fn
+      });
     };
 
     /**
@@ -548,9 +747,11 @@ module.exports = function(suite) {
      */
 
     context.describe.only = function(title, fn) {
-      var suite = context.describe(title, fn);
-      mocha.grep(suite.fullTitle());
-      return suite;
+      return common.suite.only({
+        title: title,
+        file: file,
+        fn: fn
+      });
     };
 
     /**
@@ -561,7 +762,7 @@ module.exports = function(suite) {
 
     context.it = context.specify = function(title, fn) {
       var suite = suites[0];
-      if (suite.pending) {
+      if (suite.isPending()) {
         fn = null;
       }
       var test = new Test(title, fn);
@@ -575,10 +776,7 @@ module.exports = function(suite) {
      */
 
     context.it.only = function(title, fn) {
-      var test = context.it(title, fn);
-      var reString = '^' + escapeRe(test.fullTitle()) + '$';
-      mocha.grep(new RegExp(reString));
-      return test;
+      return common.test.only(mocha, context.it(title, fn));
     };
 
     /**
@@ -588,20 +786,30 @@ module.exports = function(suite) {
     context.xit = context.xspecify = context.it.skip = function(title) {
       context.it(title);
     };
+
+    /**
+     * Number of attempts to retry.
+     */
+    context.it.retries = function(n) {
+      context.retries(n);
+    };
   });
 };
 
-},{"../suite":37,"../test":38,"./common":9,"escape-string-regexp":68}],9:[function(require,module,exports){
+},{"../test":36,"./common":9}],9:[function(require,module,exports){
 'use strict';
 
+var Suite = require('../suite');
+
 /**
  * Functions common to more than one interface.
  *
  * @param {Suite[]} suites
  * @param {Context} context
+ * @param {Mocha} mocha
  * @return {Object} An object containing common functions.
  */
-module.exports = function(suites, context) {
+module.exports = function(suites, context, mocha) {
   return {
     /**
      * This is only present if flag --delay is passed into Mocha. It triggers
@@ -656,7 +864,77 @@ module.exports = function(suites, context) {
       suites[0].afterEach(name, fn);
     },
 
+    suite: {
+      /**
+       * Create an exclusive Suite; convenience function
+       * See docstring for create() below.
+       *
+       * @param {Object} opts
+       * @returns {Suite}
+       */
+      only: function only(opts) {
+        mocha.options.hasOnly = true;
+        opts.isOnly = true;
+        return this.create(opts);
+      },
+
+      /**
+       * Create a Suite, but skip it; convenience function
+       * See docstring for create() below.
+       *
+       * @param {Object} opts
+       * @returns {Suite}
+       */
+      skip: function skip(opts) {
+        opts.pending = true;
+        return this.create(opts);
+      },
+
+      /**
+       * Creates a suite.
+       * @param {Object} opts Options
+       * @param {string} opts.title Title of Suite
+       * @param {Function} [opts.fn] Suite Function (not always applicable)
+       * @param {boolean} [opts.pending] Is Suite pending?
+       * @param {string} [opts.file] Filepath where this Suite resides
+       * @param {boolean} [opts.isOnly] Is Suite exclusive?
+       * @returns {Suite}
+       */
+      create: function create(opts) {
+        var suite = Suite.create(suites[0], opts.title);
+        suite.pending = Boolean(opts.pending);
+        suite.file = opts.file;
+        suites.unshift(suite);
+        if (opts.isOnly) {
+          suite.parent._onlySuites = suite.parent._onlySuites.concat(suite);
+          mocha.options.hasOnly = true;
+        }
+        if (typeof opts.fn === 'function') {
+          opts.fn.call(suite);
+          suites.shift();
+        } else if (typeof opts.fn === 'undefined' && !suite.pending) {
+          throw new Error('Suite "' + suite.fullTitle() + '" was defined but no callback was supplied. Supply a callback or explicitly skip the suite.');
+        }
+
+        return suite;
+      }
+    },
+
     test: {
+
+      /**
+       * Exclusive test-case.
+       *
+       * @param {Object} mocha
+       * @param {Function} test
+       * @returns {*}
+       */
+      only: function(mocha, test) {
+        test.parent._onlyTests = test.parent._onlyTests.concat(test);
+        mocha.options.hasOnly = true;
+        return test;
+      },
+
       /**
        * Pending test case.
        *
@@ -664,12 +942,21 @@ module.exports = function(suites, context) {
        */
       skip: function(title) {
         context.test(title);
+      },
+
+      /**
+       * Number of retry attempts
+       *
+       * @param {number} n
+       */
+      retries: function(n) {
+        context.retries(n);
       }
     }
   };
 };
 
-},{}],10:[function(require,module,exports){
+},{"../suite":35}],10:[function(require,module,exports){
 /**
  * Module dependencies.
  */
@@ -678,7 +965,7 @@ var Suite = require('../suite');
 var Test = require('../test');
 
 /**
- * TDD-style interface:
+ * Exports-style (as Node.js module) interface:
  *
  *     exports.Array = {
  *       '#indexOf()': {
@@ -725,14 +1012,14 @@ module.exports = function(suite) {
       } else {
         suite = Suite.create(suites[0], key);
         suites.unshift(suite);
-        visit(obj[key]);
+        visit(obj[key], file);
         suites.shift();
       }
     }
   }
 };
 
-},{"../suite":37,"../test":38}],11:[function(require,module,exports){
+},{"../suite":35,"../test":36}],11:[function(require,module,exports){
 exports.bdd = require('./bdd');
 exports.tdd = require('./tdd');
 exports.qunit = require('./qunit');
@@ -743,9 +1030,7 @@ exports.exports = require('./exports');
  * Module dependencies.
  */
 
-var Suite = require('../suite');
 var Test = require('../test');
-var escapeRe = require('escape-string-regexp');
 
 /**
  * QUnit-style interface:
@@ -776,7 +1061,7 @@ module.exports = function(suite) {
   var suites = [suite];
 
   suite.on('pre-require', function(context, file, mocha) {
-    var common = require('./common')(suites, context);
+    var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;
     context.after = common.after;
@@ -791,19 +1076,26 @@ module.exports = function(suite) {
       if (suites.length > 1) {
         suites.shift();
       }
-      var suite = Suite.create(suites[0], title);
-      suite.file = file;
-      suites.unshift(suite);
-      return suite;
+      return common.suite.create({
+        title: title,
+        file: file,
+        fn: false
+      });
     };
 
     /**
-     * Exclusive test-case.
+     * Exclusive Suite.
      */
 
-    context.suite.only = function(title, fn) {
-      var suite = context.suite(title, fn);
-      mocha.grep(suite.fullTitle());
+    context.suite.only = function(title) {
+      if (suites.length > 1) {
+        suites.shift();
+      }
+      return common.suite.only({
+        title: title,
+        file: file,
+        fn: false
+      });
     };
 
     /**
@@ -824,23 +1116,20 @@ module.exports = function(suite) {
      */
 
     context.test.only = function(title, fn) {
-      var test = context.test(title, fn);
-      var reString = '^' + escapeRe(test.fullTitle()) + '$';
-      mocha.grep(new RegExp(reString));
+      return common.test.only(mocha, context.test(title, fn));
     };
 
     context.test.skip = common.test.skip;
+    context.test.retries = common.test.retries;
   });
 };
 
-},{"../suite":37,"../test":38,"./common":9,"escape-string-regexp":68}],13:[function(require,module,exports){
+},{"../test":36,"./common":9}],13:[function(require,module,exports){
 /**
  * Module dependencies.
  */
 
-var Suite = require('../suite');
 var Test = require('../test');
-var escapeRe = require('escape-string-regexp');
 
 /**
  * TDD-style interface:
@@ -871,7 +1160,7 @@ module.exports = function(suite) {
   var suites = [suite];
 
   suite.on('pre-require', function(context, file, mocha) {
-    var common = require('./common')(suites, context);
+    var common = require('./common')(suites, context, mocha);
 
     context.setup = common.beforeEach;
     context.teardown = common.afterEach;
@@ -884,31 +1173,33 @@ module.exports = function(suite) {
      * nested suites and/or tests.
      */
     context.suite = function(title, fn) {
-      var suite = Suite.create(suites[0], title);
-      suite.file = file;
-      suites.unshift(suite);
-      fn.call(suite);
-      suites.shift();
-      return suite;
+      return common.suite.create({
+        title: title,
+        file: file,
+        fn: fn
+      });
     };
 
     /**
      * Pending suite.
      */
     context.suite.skip = function(title, fn) {
-      var suite = Suite.create(suites[0], title);
-      suite.pending = true;
-      suites.unshift(suite);
-      fn.call(suite);
-      suites.shift();
+      return common.suite.skip({
+        title: title,
+        file: file,
+        fn: fn
+      });
     };
 
     /**
      * Exclusive test-case.
      */
     context.suite.only = function(title, fn) {
-      var suite = context.suite(title, fn);
-      mocha.grep(suite.fullTitle());
+      return common.suite.only({
+        title: title,
+        file: file,
+        fn: fn
+      });
     };
 
     /**
@@ -917,7 +1208,7 @@ module.exports = function(suite) {
      */
     context.test = function(title, fn) {
       var suite = suites[0];
-      if (suite.pending) {
+      if (suite.isPending()) {
         fn = null;
       }
       var test = new Test(title, fn);
@@ -931,16 +1222,15 @@ module.exports = function(suite) {
      */
 
     context.test.only = function(title, fn) {
-      var test = context.test(title, fn);
-      var reString = '^' + escapeRe(test.fullTitle()) + '$';
-      mocha.grep(new RegExp(reString));
+      return common.test.only(mocha, context.test(title, fn));
     };
 
     context.test.skip = common.test.skip;
+    context.test.retries = common.test.retries;
   });
 };
 
-},{"../suite":37,"../test":38,"./common":9,"escape-string-regexp":68}],14:[function(require,module,exports){
+},{"../test":36,"./common":9}],14:[function(require,module,exports){
 (function (process,global,__dirname){
 /*!
  * mocha
@@ -1006,6 +1296,7 @@ function image(name) {
  *   - `reporter` reporter instance, defaults to `mocha.reporters.spec`
  *   - `globals` array of accepted globals
  *   - `timeout` timeout in milliseconds
+ *   - `retries` number of times to retry failed tests
  *   - `bail` bail on the first test failure
  *   - `slow` milliseconds to wait before considering a test slow
  *   - `ignoreLeaks` ignore global leaks
@@ -1023,7 +1314,7 @@ function Mocha(options) {
     this.grep(new RegExp(options.grep));
   }
   if (options.fgrep) {
-    this.grep(options.fgrep);
+    this.fgrep(options.fgrep);
   }
   this.suite = new exports.Suite('', new exports.Context());
   this.ui(options.ui);
@@ -1032,6 +1323,9 @@ function Mocha(options) {
   if (typeof options.timeout !== 'undefined' && options.timeout !== null) {
     this.timeout(options.timeout);
   }
+  if (typeof options.retries !== 'undefined' && options.retries !== null) {
+    this.retries(options.retries);
+  }
   this.useColors(options.useColors);
   if (options.enableTimeouts !== null) {
     this.enableTimeouts(options.enableTimeouts);
@@ -1039,22 +1333,6 @@ function Mocha(options) {
   if (options.slow) {
     this.slow(options.slow);
   }
-
-  this.suite.on('pre-require', function(context) {
-    exports.afterEach = context.afterEach || context.teardown;
-    exports.after = context.after || context.suiteTeardown;
-    exports.beforeEach = context.beforeEach || context.setup;
-    exports.before = context.before || context.suiteSetup;
-    exports.describe = context.describe || context.suite;
-    exports.it = context.it || context.test;
-    exports.setup = context.setup || context.beforeEach;
-    exports.suiteSetup = context.suiteSetup || context.before;
-    exports.suiteTeardown = context.suiteTeardown || context.after;
-    exports.suite = context.suite || context.describe;
-    exports.teardown = context.teardown || context.afterEach;
-    exports.test = context.test || context.it;
-    exports.run = context.run;
-  });
 }
 
 /**
@@ -1142,25 +1420,41 @@ Mocha.prototype.ui = function(name) {
     }
   }
   this._ui = this._ui(this.suite);
-  return this;
-};
 
-/**
- * Load registered files.
- *
- * @api private
- */
-Mocha.prototype.loadFiles = function(fn) {
-  var self = this;
-  var suite = this.suite;
-  var pending = this.files.length;
-  this.files.forEach(function(file) {
-    file = path.resolve(file);
-    suite.emit('pre-require', global, file, self);
-    suite.emit('require', require(file), file, self);
-    suite.emit('post-require', global, file, self);
-    --pending || (fn && fn());
-  });
+  this.suite.on('pre-require', function(context) {
+    exports.afterEach = context.afterEach || context.teardown;
+    exports.after = context.after || context.suiteTeardown;
+    exports.beforeEach = context.beforeEach || context.setup;
+    exports.before = context.before || context.suiteSetup;
+    exports.describe = context.describe || context.suite;
+    exports.it = context.it || context.test;
+    exports.setup = context.setup || context.beforeEach;
+    exports.suiteSetup = context.suiteSetup || context.before;
+    exports.suiteTeardown = context.suiteTeardown || context.after;
+    exports.suite = context.suite || context.describe;
+    exports.teardown = context.teardown || context.afterEach;
+    exports.test = context.test || context.it;
+    exports.run = context.run;
+  });
+
+  return this;
+};
+
+/**
+ * Load registered files.
+ *
+ * @api private
+ */
+Mocha.prototype.loadFiles = function(fn) {
+  var self = this;
+  var suite = this.suite;
+  this.files.forEach(function(file) {
+    file = path.resolve(file);
+    suite.emit('pre-require', global, file, self);
+    suite.emit('require', require(file), file, self);
+    suite.emit('post-require', global, file, self);
+  });
+  fn && fn();
 };
 
 /**
@@ -1186,6 +1480,17 @@ Mocha.prototype._growl = function(runner, reporter) {
   });
 };
 
+/**
+ * Escape string and add it to grep as a regexp.
+ *
+ * @api public
+ * @param str
+ * @returns {Mocha}
+ */
+Mocha.prototype.fgrep = function(str) {
+  return this.grep(new RegExp(escapeRe(str)));
+};
+
 /**
  * Add regexp to grep, if `re` is a string it is escaped.
  *
@@ -1196,10 +1501,15 @@ Mocha.prototype._growl = function(runner, reporter) {
  * @return {Mocha}
  */
 Mocha.prototype.grep = function(re) {
-  this.options.grep = typeof re === 'string' ? new RegExp(escapeRe(re)) : re;
+  if (utils.isString(re)) {
+    // extract args if it's regex-like, i.e: [string, pattern, flag]
+    var arg = re.match(/^\/(.*)\/(g|i|)$|.*/);
+    this.options.grep = new RegExp(arg[1] || arg[0], arg[2]);
+  } else {
+    this.options.grep = re;
+  }
   return this;
 };
-
 /**
  * Invert `.grep()` matches.
  *
@@ -1316,6 +1626,18 @@ Mocha.prototype.timeout = function(timeout) {
   return this;
 };
 
+/**
+ * Set the number of times to retry failed tests.
+ *
+ * @param {Number} retry times
+ * @return {Mocha}
+ * @api public
+ */
+Mocha.prototype.retries = function(n) {
+  this.suite.retries(n);
+  return this;
+};
+
 /**
  * Set slowness threshold in milliseconds.
  *
@@ -1403,6 +1725,7 @@ Mocha.prototype.run = function(fn) {
   var reporter = new this._reporter(runner, options);
   runner.ignoreLeaks = options.ignoreLeaks !== false;
   runner.fullStackTrace = options.fullStackTrace;
+  runner.hasOnly = options.hasOnly;
   runner.asyncOnly = options.asyncOnly;
   runner.allowUncaught = options.allowUncaught;
   if (options.grep) {
@@ -1431,7 +1754,7 @@ Mocha.prototype.run = function(fn) {
 };
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},"/lib")
-},{"./context":6,"./hook":7,"./interfaces":11,"./reporters":22,"./runnable":35,"./runner":36,"./suite":37,"./test":38,"./utils":39,"_process":51,"escape-string-regexp":68,"growl":69,"path":41}],15:[function(require,module,exports){
+},{"./context":6,"./hook":7,"./interfaces":11,"./reporters":21,"./runnable":33,"./runner":34,"./suite":35,"./test":36,"./utils":38,"_process":67,"escape-string-regexp":47,"growl":49,"path":42}],15:[function(require,module,exports){
 /**
  * Helpers.
  */
@@ -1660,7 +1983,9 @@ exports.colors = {
 exports.symbols = {
   ok: '✓',
   err: '✖',
-  dot: '․'
+  dot: '․',
+  comma: ',',
+  bang: '!'
 };
 
 // With node.js on Windows: use symbols available in terminal default fonts
@@ -1752,15 +2077,15 @@ exports.list = function(failures) {
     var msg;
     var err = test.err;
     var message;
-    if (err.message) {
-      message = err.message;
+    if (err.message && typeof err.message.toString === 'function') {
+      message = err.message + '';
     } else if (typeof err.inspect === 'function') {
       message = err.inspect() + '';
     } else {
       message = '';
     }
     var stack = err.stack || message;
-    var index = stack.indexOf(message);
+    var index = message ? stack.indexOf(message) : -1;
     var actual = err.actual;
     var expected = err.expected;
     var escape = true;
@@ -2069,7 +2394,7 @@ function sameType(a, b) {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../ms":15,"../utils":39,"_process":51,"diff":67,"supports-color":41,"tty":5}],18:[function(require,module,exports){
+},{"../ms":15,"../utils":38,"_process":67,"diff":46,"supports-color":42,"tty":5}],18:[function(require,module,exports){
 /**
  * Module dependencies.
  */
@@ -2121,19 +2446,19 @@ function Doc(runner) {
 
   runner.on('pass', function(test) {
     console.log('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
-    var code = utils.escape(utils.clean(test.fn.toString()));
+    var code = utils.escape(utils.clean(test.body));
     console.log('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
   });
 
   runner.on('fail', function(test, err) {
     console.log('%s  <dt class="error">%s</dt>', indent(), utils.escape(test.title));
-    var code = utils.escape(utils.clean(test.fn.toString()));
+    var code = utils.escape(utils.clean(test.body));
     console.log('%s  <dd class="error"><pre><code>%s</code></pre></dd>', indent(), code);
     console.log('%s  <dd class="error">%s</dd>', indent(), utils.escape(err));
   });
 }
 
-},{"../utils":39,"./base":17}],19:[function(require,module,exports){
+},{"../utils":38,"./base":17}],19:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -2170,7 +2495,7 @@ function Dot(runner) {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
-    process.stdout.write(color('pending', Base.symbols.dot));
+    process.stdout.write(color('pending', Base.symbols.comma));
   });
 
   runner.on('pass', function(test) {
@@ -2188,7 +2513,7 @@ function Dot(runner) {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
-    process.stdout.write(color('fail', Base.symbols.dot));
+    process.stdout.write(color('fail', Base.symbols.bang));
   });
 
   runner.on('end', function() {
@@ -2203,67 +2528,7 @@ function Dot(runner) {
 inherits(Dot, Base);
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],20:[function(require,module,exports){
-(function (process,__dirname){
-/**
- * Module dependencies.
- */
-
-var JSONCov = require('./json-cov');
-var readFileSync = require('fs').readFileSync;
-var join = require('path').join;
-
-/**
- * Expose `HTMLCov`.
- */
-
-exports = module.exports = HTMLCov;
-
-/**
- * Initialize a new `JsCoverage` reporter.
- *
- * @api public
- * @param {Runner} runner
- */
-function HTMLCov(runner) {
-  var jade = require('jade');
-  var file = join(__dirname, '/templates/coverage.jade');
-  var str = readFileSync(file, 'utf8');
-  var fn = jade.compile(str, { filename: file });
-  var self = this;
-
-  JSONCov.call(this, runner, false);
-
-  runner.on('end', function() {
-    process.stdout.write(fn({
-      cov: self.cov,
-      coverageClass: coverageClass
-    }));
-  });
-}
-
-/**
- * Return coverage class for a given coverage percentage.
- *
- * @api private
- * @param {number} coveragePctg
- * @return {string}
- */
-function coverageClass(coveragePctg) {
-  if (coveragePctg >= 75) {
-    return 'high';
-  }
-  if (coveragePctg >= 50) {
-    return 'medium';
-  }
-  if (coveragePctg >= 25) {
-    return 'low';
-  }
-  return 'terrible';
-}
-
-}).call(this,require('_process'),"/lib/reporters")
-},{"./json-cov":23,"_process":51,"fs":41,"jade":41,"path":41}],21:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],20:[function(require,module,exports){
 (function (global){
 /* eslint-env browser */
 
@@ -2347,7 +2612,8 @@ function HTML(runner) {
   }
 
   // pass toggle
-  on(passesLink, 'click', function() {
+  on(passesLink, 'click', function(evt) {
+    evt.preventDefault();
     unhide();
     var name = (/pass/).test(report.className) ? '' : ' pass';
     report.className = report.className.replace(/fail|pass/g, '') + name;
@@ -2357,7 +2623,8 @@ function HTML(runner) {
   });
 
   // failure toggle
-  on(failuresLink, 'click', function() {
+  on(failuresLink, 'click', function(evt) {
+    evt.preventDefault();
     unhide();
     var name = (/fail/).test(report.className) ? '' : ' fail';
     report.className = report.className.replace(/fail|pass/g, '') + name;
@@ -2390,90 +2657,88 @@ function HTML(runner) {
 
   runner.on('suite end', function(suite) {
     if (suite.root) {
+      updateStats();
       return;
     }
     stack.shift();
   });
 
-  runner.on('fail', function(test) {
-    if (test.type === 'hook') {
-      runner.emit('test end', test);
-    }
+  runner.on('pass', function(test) {
+    var url = self.testURL(test);
+    var markup = '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> '
+      + '<a href="http://github.com/%s" class="replay">‣</a></h2></li>';
+    var el = fragment(markup, test.speed, test.title, test.duration, url);
+    self.addCodeToggle(el, test.body);
+    appendToStack(el);
+    updateStats();
   });
 
-  runner.on('test end', function(test) {
-    // TODO: add to stats
-    var percent = stats.tests / this.total * 100 | 0;
-    if (progress) {
-      progress.update(percent).draw(ctx);
-    }
-
-    // update stats
-    var ms = new Date() - stats.start;
-    text(passes, stats.passes);
-    text(failures, stats.failures);
-    text(duration, (ms / 1000).toFixed(2));
-
-    // test
-    var el;
-    if (test.state === 'passed') {
-      var url = self.testURL(test);
-      el = fragment('<li class="test pass %e"><h2>%e<span class="duration">%ems</span> <a href="http://github.com/%s" class="replay">‣</a></h2></li>', test.speed, test.title, test.duration, url);
-    } else if (test.pending) {
-      el = fragment('<li class="test pass pending"><h2>%e</h2></li>', test.title);
-    } else {
-      el = fragment('<li class="test fail"><h2>%e <a href="http://github.com/%e" class="replay">‣</a></h2></li>', test.title, self.testURL(test));
-      var stackString; // Note: Includes leading newline
-      var message = test.err.toString();
-
-      // <=IE7 stringifies to [Object Error]. Since it can be overloaded, we
-      // check for the result of the stringifying.
-      if (message === '[object Error]') {
-        message = test.err.message;
-      }
-
-      if (test.err.stack) {
-        var indexOfMessage = test.err.stack.indexOf(test.err.message);
-        if (indexOfMessage === -1) {
-          stackString = test.err.stack;
-        } else {
-          stackString = test.err.stack.substr(test.err.message.length + indexOfMessage);
-        }
-      } else if (test.err.sourceURL && test.err.line !== undefined) {
-        // Safari doesn't give you a stack. Let's at least provide a source line.
-        stackString = '\n(' + test.err.sourceURL + ':' + test.err.line + ')';
-      }
+  runner.on('fail', function(test) {
+    var el = fragment('<li class="test fail"><h2>%e <a href="http://github.com/%e" class="replay">‣</a></h2></li>',
+      test.title, self.testURL(test));
+    var stackString; // Note: Includes leading newline
+    var message = test.err.toString();
 
-      stackString = stackString || '';
+    // <=IE7 stringifies to [Object Error]. Since it can be overloaded, we
+    // check for the result of the stringifying.
+    if (message === '[object Error]') {
+      message = test.err.message;
+    }
 
-      if (test.err.htmlMessage && stackString) {
-        el.appendChild(fragment('<div class="html-error">%s\n<pre class="error">%e</pre></div>', test.err.htmlMessage, stackString));
-      } else if (test.err.htmlMessage) {
-        el.appendChild(fragment('<div class="html-error">%s</div>', test.err.htmlMessage));
+    if (test.err.stack) {
+      var indexOfMessage = test.err.stack.indexOf(test.err.message);
+      if (indexOfMessage === -1) {
+        stackString = test.err.stack;
       } else {
-        el.appendChild(fragment('<pre class="error">%e%e</pre>', message, stackString));
+        stackString = test.err.stack.substr(test.err.message.length + indexOfMessage);
       }
+    } else if (test.err.sourceURL && test.err.line !== undefined) {
+      // Safari doesn't give you a stack. Let's at least provide a source line.
+      stackString = '\n(' + test.err.sourceURL + ':' + test.err.line + ')';
     }
 
-    // toggle code
-    // TODO: defer
-    if (!test.pending) {
-      var h2 = el.getElementsByTagName('h2')[0];
-
-      on(h2, 'click', function() {
-        pre.style.display = pre.style.display === 'none' ? 'block' : 'none';
-      });
+    stackString = stackString || '';
 
-      var pre = fragment('<pre><code>%e</code></pre>', utils.clean(test.fn.toString()));
-      el.appendChild(pre);
-      pre.style.display = 'none';
+    if (test.err.htmlMessage && stackString) {
+      el.appendChild(fragment('<div class="html-error">%s\n<pre class="error">%e</pre></div>',
+        test.err.htmlMessage, stackString));
+    } else if (test.err.htmlMessage) {
+      el.appendChild(fragment('<div class="html-error">%s</div>', test.err.htmlMessage));
+    } else {
+      el.appendChild(fragment('<pre class="error">%e%e</pre>', message, stackString));
     }
 
+    self.addCodeToggle(el, test.body);
+    appendToStack(el);
+    updateStats();
+  });
+
+  runner.on('pending', function(test) {
+    var el = fragment('<li class="test pass pending"><h2>%e</h2></li>', test.title);
+    appendToStack(el);
+    updateStats();
+  });
+
+  function appendToStack(el) {
     // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack.
     if (stack[0]) {
       stack[0].appendChild(el);
     }
-  });
+  }
+
+  function updateStats() {
+    // TODO: add to stats
+    var percent = stats.tests / runner.total * 100 | 0;
+    if (progress) {
+      progress.update(percent).draw(ctx);
+    }
+
+    // update stats
+    var ms = new Date() - stats.start;
+    text(passes, stats.passes);
+    text(failures, stats.failures);
+    text(duration, (ms / 1000).toFixed(2));
+  }
 }
 
 /**
@@ -2511,6 +2776,24 @@ HTML.prototype.testURL = function(test) {
   return makeUrl(test.fullTitle());
 };
 
+/**
+ * Adds code toggle functionality for the provided test's list element.
+ *
+ * @param {HTMLLIElement} el
+ * @param {string} contents
+ */
+HTML.prototype.addCodeToggle = function(el, contents) {
+  var h2 = el.getElementsByTagName('h2')[0];
+
+  on(h2, 'click', function() {
+    pre.style.display = pre.style.display === 'none' ? 'block' : 'none';
+  });
+
+  var pre = fragment('<pre><code>%e</code></pre>', utils.clean(contents));
+  el.appendChild(pre);
+  pre.style.display = 'none';
+};
+
 /**
  * Display error `msg`.
  *
@@ -2593,7 +2876,7 @@ function on(el, event, fn) {
 }
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../browser/progress":4,"../utils":39,"./base":17,"escape-string-regexp":68}],22:[function(require,module,exports){
+},{"../browser/progress":4,"../utils":38,"./base":17,"escape-string-regexp":47}],21:[function(require,module,exports){
 // Alias exports to a their normalized format Mocha#reporter to prevent a need
 // for dynamic (try/catch) requires, which Browserify doesn't handle.
 exports.Base = exports.base = require('./base');
@@ -2610,171 +2893,16 @@ exports.XUnit = exports.xunit = require('./xunit');
 exports.Markdown = exports.markdown = require('./markdown');
 exports.Progress = exports.progress = require('./progress');
 exports.Landing = exports.landing = require('./landing');
-exports.JSONCov = exports['json-cov'] = require('./json-cov');
-exports.HTMLCov = exports['html-cov'] = require('./html-cov');
 exports.JSONStream = exports['json-stream'] = require('./json-stream');
 
-},{"./base":17,"./doc":18,"./dot":19,"./html":21,"./html-cov":20,"./json":25,"./json-cov":23,"./json-stream":24,"./landing":26,"./list":27,"./markdown":28,"./min":29,"./nyan":30,"./progress":31,"./spec":32,"./tap":33,"./xunit":34}],23:[function(require,module,exports){
-(function (process,global){
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-
-/**
- * Expose `JSONCov`.
- */
-
-exports = module.exports = JSONCov;
-
-/**
- * Initialize a new `JsCoverage` reporter.
- *
- * @api public
- * @param {Runner} runner
- * @param {boolean} output
- */
-function JSONCov(runner, output) {
-  Base.call(this, runner);
-
-  output = arguments.length === 1 || output;
-  var self = this;
-  var tests = [];
-  var failures = [];
-  var passes = [];
-
-  runner.on('test end', function(test) {
-    tests.push(test);
-  });
-
-  runner.on('pass', function(test) {
-    passes.push(test);
-  });
-
-  runner.on('fail', function(test) {
-    failures.push(test);
-  });
-
-  runner.on('end', function() {
-    var cov = global._$jscoverage || {};
-    var result = self.cov = map(cov);
-    result.stats = self.stats;
-    result.tests = tests.map(clean);
-    result.failures = failures.map(clean);
-    result.passes = passes.map(clean);
-    if (!output) {
-      return;
-    }
-    process.stdout.write(JSON.stringify(result, null, 2));
-  });
-}
-
-/**
- * Map jscoverage data to a JSON structure
- * suitable for reporting.
- *
- * @api private
- * @param {Object} cov
- * @return {Object}
- */
-
-function map(cov) {
-  var ret = {
-    instrumentation: 'node-jscoverage',
-    sloc: 0,
-    hits: 0,
-    misses: 0,
-    coverage: 0,
-    files: []
-  };
-
-  for (var filename in cov) {
-    if (Object.prototype.hasOwnProperty.call(cov, filename)) {
-      var data = coverage(filename, cov[filename]);
-      ret.files.push(data);
-      ret.hits += data.hits;
-      ret.misses += data.misses;
-      ret.sloc += data.sloc;
-    }
-  }
-
-  ret.files.sort(function(a, b) {
-    return a.filename.localeCompare(b.filename);
-  });
-
-  if (ret.sloc > 0) {
-    ret.coverage = (ret.hits / ret.sloc) * 100;
-  }
-
-  return ret;
-}
-
-/**
- * Map jscoverage data for a single source file
- * to a JSON structure suitable for reporting.
- *
- * @api private
- * @param {string} filename name of the source file
- * @param {Object} data jscoverage coverage data
- * @return {Object}
- */
-function coverage(filename, data) {
-  var ret = {
-    filename: filename,
-    coverage: 0,
-    hits: 0,
-    misses: 0,
-    sloc: 0,
-    source: {}
-  };
-
-  data.source.forEach(function(line, num) {
-    num++;
-
-    if (data[num] === 0) {
-      ret.misses++;
-      ret.sloc++;
-    } else if (data[num] !== undefined) {
-      ret.hits++;
-      ret.sloc++;
-    }
-
-    ret.source[num] = {
-      source: line,
-      coverage: data[num] === undefined ? '' : data[num]
-    };
-  });
-
-  ret.coverage = ret.hits / ret.sloc * 100;
-
-  return ret;
-}
-
-/**
- * Return a plain-object representation of `test`
- * free of cyclic properties etc.
- *
- * @api private
- * @param {Object} test
- * @return {Object}
- */
-function clean(test) {
-  return {
-    duration: test.duration,
-    fullTitle: test.fullTitle(),
-    title: test.title
-  };
-}
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./base":17,"_process":51}],24:[function(require,module,exports){
+},{"./base":17,"./doc":18,"./dot":19,"./html":20,"./json":23,"./json-stream":22,"./landing":24,"./list":25,"./markdown":26,"./min":27,"./nyan":28,"./progress":29,"./spec":30,"./tap":31,"./xunit":32}],22:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
+var JSON = require('json3');
 
 /**
  * Expose `List`.
@@ -2826,12 +2954,13 @@ function clean(test) {
   return {
     title: test.title,
     fullTitle: test.fullTitle(),
-    duration: test.duration
+    duration: test.duration,
+    currentRetry: test.currentRetry()
   };
 }
 
 }).call(this,require('_process'))
-},{"./base":17,"_process":51}],25:[function(require,module,exports){
+},{"./base":17,"_process":67,"json3":54}],23:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -2904,6 +3033,7 @@ function clean(test) {
     title: test.title,
     fullTitle: test.fullTitle(),
     duration: test.duration,
+    currentRetry: test.currentRetry(),
     err: errorJSON(test.err || {})
   };
 }
@@ -2924,7 +3054,7 @@ function errorJSON(err) {
 }
 
 }).call(this,require('_process'))
-},{"./base":17,"_process":51}],26:[function(require,module,exports){
+},{"./base":17,"_process":67}],24:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -3020,7 +3150,7 @@ function Landing(runner) {
 inherits(Landing, Base);
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],27:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],25:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -3085,7 +3215,7 @@ function List(runner) {
 inherits(List, Base);
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],28:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],26:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -3171,7 +3301,7 @@ function Markdown(runner) {
   });
 
   runner.on('pass', function(test) {
-    var code = utils.clean(test.fn.toString());
+    var code = utils.clean(test.body);
     buf += test.title + '.\n';
     buf += '\n```js\n';
     buf += code + '\n';
@@ -3186,7 +3316,7 @@ function Markdown(runner) {
 }
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],29:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],27:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -3226,7 +3356,7 @@ function Min(runner) {
 inherits(Min, Base);
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],30:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],28:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -3491,7 +3621,7 @@ function write(string) {
 }
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],31:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],29:[function(require,module,exports){
 (function (process){
 /**
  * Module dependencies.
@@ -3584,7 +3714,7 @@ function Progress(runner, options) {
 inherits(Progress, Base);
 
 }).call(this,require('_process'))
-},{"../utils":39,"./base":17,"_process":51}],32:[function(require,module,exports){
+},{"../utils":38,"./base":17,"_process":67}],30:[function(require,module,exports){
 /**
  * Module dependencies.
  */
@@ -3592,7 +3722,6 @@ inherits(Progress, Base);
 var Base = require('./base');
 var inherits = require('../utils').inherits;
 var color = Base.color;
-var cursor = Base.cursor;
 
 /**
  * Expose `Spec`.
@@ -3644,20 +3773,17 @@ function Spec(runner) {
       fmt = indent()
         + color('checkmark', '  ' + Base.symbols.ok)
         + color('pass', ' %s');
-      cursor.CR();
       console.log(fmt, test.title);
     } else {
       fmt = indent()
         + color('checkmark', '  ' + Base.symbols.ok)
         + color('pass', ' %s')
         + color(test.speed, ' (%dms)');
-      cursor.CR();
       console.log(fmt, test.title, test.duration);
     }
   });
 
   runner.on('fail', function(test) {
-    cursor.CR();
     console.log(indent() + color('fail', '  %d) %s'), ++n, test.title);
   });
 
@@ -3669,7 +3795,7 @@ function Spec(runner) {
  */
 inherits(Spec, Base);
 
-},{"../utils":39,"./base":17}],33:[function(require,module,exports){
+},{"../utils":38,"./base":17}],31:[function(require,module,exports){
 /**
  * Module dependencies.
  */
@@ -3739,8 +3865,8 @@ function title(test) {
   return test.fullTitle().replace(/#/g, '');
 }
 
-},{"./base":17}],34:[function(require,module,exports){
-(function (global){
+},{"./base":17}],32:[function(require,module,exports){
+(function (process,global){
 /**
  * Module dependencies.
  */
@@ -3750,6 +3876,8 @@ var utils = require('../utils');
 var inherits = utils.inherits;
 var fs = require('fs');
 var escape = utils.escape;
+var mkdirp = require('mkdirp');
+var path = require('path');
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
@@ -3786,6 +3914,7 @@ function XUnit(runner, options) {
     if (!fs.createWriteStream) {
       throw new Error('file output not supported in browser');
     }
+    mkdirp.sync(path.dirname(options.reporterOptions.output));
     self.fileStream = fs.createWriteStream(options.reporterOptions.output);
   }
 
@@ -3849,6 +3978,8 @@ XUnit.prototype.done = function(failures, fn) {
 XUnit.prototype.write = function(line) {
   if (this.fileStream) {
     this.fileStream.write(line + '\n');
+  } else if (typeof process === 'object' && process.stdout) {
+    process.stdout.write(line + '\n');
   } else {
     console.log(line);
   }
@@ -3868,8 +3999,8 @@ XUnit.prototype.test = function(test) {
 
   if (test.state === 'failed') {
     var err = test.err;
-    this.write(tag('testcase', attrs, false, tag('failure', {}, false, cdata(escape(err.message) + '\n' + err.stack))));
-  } else if (test.pending) {
+    this.write(tag('testcase', attrs, false, tag('failure', {}, false, escape(err.message) + '\n' + escape(err.stack))));
+  } else if (test.isPending()) {
     this.write(tag('testcase', attrs, false, tag('skipped', {}, true)));
   } else {
     this.write(tag('testcase', attrs, true));
@@ -3903,27 +4034,20 @@ function tag(name, attrs, close, content) {
   return tag;
 }
 
-/**
- * Return cdata escaped CDATA `str`.
- */
-
-function cdata(str) {
-  return '<![CDATA[' + escape(str) + ']]>';
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../utils":39,"./base":17,"fs":41}],35:[function(require,module,exports){
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"../utils":38,"./base":17,"_process":67,"fs":42,"mkdirp":64,"path":42}],33:[function(require,module,exports){
 (function (global){
 /**
  * Module dependencies.
  */
 
 var EventEmitter = require('events').EventEmitter;
+var JSON = require('json3');
 var Pending = require('./pending');
 var debug = require('debug')('mocha:runnable');
 var milliseconds = require('./ms');
 var utils = require('./utils');
-var inherits = utils.inherits;
+var create = require('lodash.create');
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
@@ -3961,6 +4085,7 @@ module.exports = Runnable;
 function Runnable(title, fn) {
   this.title = title;
   this.fn = fn;
+  this.body = (fn || '').toString();
   this.async = fn && fn.length;
   this.sync = !this.async;
   this._timeout = 2000;
@@ -3968,12 +4093,17 @@ function Runnable(title, fn) {
   this._enableTimeouts = true;
   this.timedOut = false;
   this._trace = new Error('done() called multiple times');
+  this._retries = -1;
+  this._currentRetry = 0;
+  this.pending = false;
 }
 
 /**
  * Inherit from `EventEmitter.prototype`.
  */
-inherits(Runnable, EventEmitter);
+Runnable.prototype = create(EventEmitter.prototype, {
+  constructor: Runnable
+});
 
 /**
  * Set & get timeout `ms`.
@@ -3986,7 +4116,8 @@ Runnable.prototype.timeout = function(ms) {
   if (!arguments.length) {
     return this._timeout;
   }
-  if (ms === 0) {
+  // see #1652 for reasoning
+  if (ms === 0 || ms > Math.pow(2, 31)) {
     this._enableTimeouts = false;
   }
   if (typeof ms === 'string') {
@@ -4008,7 +4139,7 @@ Runnable.prototype.timeout = function(ms) {
  * @return {Runnable|number} ms or Runnable instance.
  */
 Runnable.prototype.slow = function(ms) {
-  if (!arguments.length) {
+  if (typeof ms === 'undefined') {
     return this._slow;
   }
   if (typeof ms === 'string') {
@@ -4038,25 +4169,58 @@ Runnable.prototype.enableTimeouts = function(enabled) {
 /**
  * Halt and mark as pending.
  *
- * @api private
+ * @api public
  */
 Runnable.prototype.skip = function() {
-  throw new Pending();
+  throw new Pending('sync skip');
 };
 
 /**
- * Return the full title generated by recursively concatenating the parent's
- * full title.
+ * Check if this runnable or its parent suite is marked as pending.
  *
- * @api public
- * @return {string}
+ * @api private
  */
-Runnable.prototype.fullTitle = function() {
-  return this.parent.fullTitle() + ' ' + this.title;
+Runnable.prototype.isPending = function() {
+  return this.pending || (this.parent && this.parent.isPending());
 };
 
 /**
- * Clear the timeout.
+ * Set number of retries.
+ *
+ * @api private
+ */
+Runnable.prototype.retries = function(n) {
+  if (!arguments.length) {
+    return this._retries;
+  }
+  this._retries = n;
+};
+
+/**
+ * Get current retry
+ *
+ * @api private
+ */
+Runnable.prototype.currentRetry = function(n) {
+  if (!arguments.length) {
+    return this._currentRetry;
+  }
+  this._currentRetry = n;
+};
+
+/**
+ * Return the full title generated by recursively concatenating the parent's
+ * full title.
+ *
+ * @api public
+ * @return {string}
+ */
+Runnable.prototype.fullTitle = function() {
+  return this.parent.fullTitle() + ' ' + this.title;
+};
+
+/**
+ * Clear the timeout.
  *
  * @api private
  */
@@ -4114,6 +4278,9 @@ Runnable.prototype.resetTimeout = function() {
  * @param {string[]} globals
  */
 Runnable.prototype.globals = function(globals) {
+  if (!arguments.length) {
+    return this._allowedGlobals;
+  }
   this._allowedGlobals = globals;
 };
 
@@ -4170,6 +4337,15 @@ Runnable.prototype.run = function(fn) {
   if (this.async) {
     this.resetTimeout();
 
+    // allows skip() to be used in an explicit async context
+    this.skip = function asyncSkip() {
+      done(new Pending('async skip call'));
+      // halt execution.  the Runnable will be marked pending
+      // by the previous call, and the uncaught handler will ignore
+      // the failure.
+      throw new Pending('async skip; aborting execution');
+    };
+
     if (this.allowUncaught) {
       return callFnAsync(this.fn);
     }
@@ -4189,7 +4365,7 @@ Runnable.prototype.run = function(fn) {
 
   // sync or promise-returning
   try {
-    if (this.pending) {
+    if (this.isPending()) {
       done();
     } else {
       callFn(this.fn);
@@ -4205,6 +4381,9 @@ Runnable.prototype.run = function(fn) {
       result
         .then(function() {
           done();
+          // Return null so libraries like bluebird do not warn about
+          // subsequently constructed Promises.
+          return null;
         },
         function(reason) {
           done(reason || new Error('Promise rejected with no or falsy reason'));
@@ -4219,7 +4398,7 @@ Runnable.prototype.run = function(fn) {
   }
 
   function callFnAsync(fn) {
-    fn.call(ctx, function(err) {
+    var result = fn.call(ctx, function(err) {
       if (err instanceof Error || toString.call(err) === '[object Error]') {
         return done(err);
       }
@@ -4230,13 +4409,17 @@ Runnable.prototype.run = function(fn) {
         }
         return done(new Error('done() invoked with non-Error: ' + err));
       }
+      if (result && utils.isPromise(result)) {
+        return done(new Error('Resolution method is overspecified. Specify a callback *or* return a Promise; not both.'));
+      }
+
       done();
     });
   }
 };
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./ms":15,"./pending":16,"./utils":39,"debug":2,"events":3}],36:[function(require,module,exports){
+},{"./ms":15,"./pending":16,"./utils":38,"debug":2,"events":3,"json3":54,"lodash.create":60}],34:[function(require,module,exports){
 (function (process,global){
 /**
  * Module dependencies.
@@ -4250,11 +4433,13 @@ var debug = require('debug')('mocha:runner');
 var Runnable = require('./runnable');
 var filter = utils.filter;
 var indexOf = utils.indexOf;
+var some = utils.some;
 var keys = utils.keys;
 var stackFilter = utils.stackTraceFilter();
 var stringify = utils.stringify;
 var type = utils.type;
 var undefinedError = utils.undefinedError;
+var isArray = utils.isArray;
 
 /**
  * Non-enumerable globals.
@@ -4458,6 +4643,10 @@ Runner.prototype.checkGlobals = function(test) {
  * @param {Error} err
  */
 Runner.prototype.fail = function(test, err) {
+  if (test.isPending()) {
+    return;
+  }
+
   ++this.failures;
   test.state = 'failed';
 
@@ -4541,7 +4730,15 @@ Runner.prototype.hook = function(name, fn) {
       }
       if (err) {
         if (err instanceof Pending) {
-          suite.pending = true;
+          if (name === 'beforeEach' || name === 'afterEach') {
+            self.test.pending = true;
+          } else {
+            utils.forEach(suite.tests, function(test) {
+              test.pending = true;
+            });
+            // a pending hook won't be executed twice.
+            hook.pending = true;
+          }
         } else {
           self.failHook(hook, err);
 
@@ -4646,6 +4843,9 @@ Runner.prototype.runTest = function(fn) {
   var self = this;
   var test = this.test;
 
+  if (!test) {
+    return;
+  }
   if (this.asyncOnly) {
     test.asyncOnly = true;
   }
@@ -4746,8 +4946,7 @@ Runner.prototype.runTests = function(suite, fn) {
       return;
     }
 
-    // pending
-    if (test.pending) {
+    if (test.isPending()) {
       self.emit('pending', test);
       self.emit('test end', test);
       return next();
@@ -4756,7 +4955,7 @@ Runner.prototype.runTests = function(suite, fn) {
     // execute test and hook(s)
     self.emit('test', self.test = test);
     self.hookDown('beforeEach', function(err, errSuite) {
-      if (suite.pending) {
+      if (test.isPending()) {
         self.emit('pending', test);
         self.emit('test end', test);
         return next();
@@ -4767,10 +4966,19 @@ Runner.prototype.runTests = function(suite, fn) {
       self.currentRunnable = self.test;
       self.runTest(function(err) {
         test = self.test;
-
         if (err) {
+          var retry = test.currentRetry();
           if (err instanceof Pending) {
+            test.pending = true;
             self.emit('pending', test);
+          } else if (retry < test.retries()) {
+            var clonedTest = test.clone();
+            clonedTest.currentRetry(retry + 1);
+            tests.unshift(clonedTest);
+
+            // Early return + hook trigger so that it doesn't
+            // increment the count wrong
+            return self.hookUp('afterEach', next);
           } else {
             self.fail(test, err);
           }
@@ -4861,6 +5069,10 @@ Runner.prototype.runSuite = function(suite, fn) {
       // mark that the afterAll block has been called once
       // and so can be skipped if there is an error in it.
       afterAllHookCalled = true;
+
+      // remove reference to test
+      delete self.test;
+
       self.hook('afterAll', function() {
         self.emit('suite end', suite);
         fn(errSuite);
@@ -4915,8 +5127,8 @@ Runner.prototype.uncaught = function(err) {
 
   runnable.clearTimeout();
 
-  // Ignore errors if complete
-  if (runnable.state) {
+  // Ignore errors if complete or pending
+  if (runnable.state || runnable.isPending()) {
     return;
   }
   this.fail(runnable, err);
@@ -4947,6 +5159,44 @@ Runner.prototype.uncaught = function(err) {
   this.emit('end');
 };
 
+/**
+ * Cleans up the references to all the deferred functions
+ * (before/after/beforeEach/afterEach) and tests of a Suite.
+ * These must be deleted otherwise a memory leak can happen,
+ * as those functions may reference variables from closures,
+ * thus those variables can never be garbage collected as long
+ * as the deferred functions exist.
+ *
+ * @param {Suite} suite
+ */
+function cleanSuiteReferences(suite) {
+  function cleanArrReferences(arr) {
+    for (var i = 0; i < arr.length; i++) {
+      delete arr[i].fn;
+    }
+  }
+
+  if (isArray(suite._beforeAll)) {
+    cleanArrReferences(suite._beforeAll);
+  }
+
+  if (isArray(suite._beforeEach)) {
+    cleanArrReferences(suite._beforeEach);
+  }
+
+  if (isArray(suite._afterAll)) {
+    cleanArrReferences(suite._afterAll);
+  }
+
+  if (isArray(suite._afterEach)) {
+    cleanArrReferences(suite._afterEach);
+  }
+
+  for (var i = 0; i < suite.tests.length; i++) {
+    delete suite.tests[i].fn;
+  }
+}
+
 /**
  * Run the root suite and invoke `fn(failures)`
  * on completion.
@@ -4961,6 +5211,11 @@ Runner.prototype.run = function(fn) {
   var self = this;
   var rootSuite = this.suite;
 
+  // If there is an `only` filter
+  if (this.hasOnly) {
+    filterOnly(rootSuite);
+  }
+
   fn = fn || function() {};
 
   function uncaught(err) {
@@ -4978,6 +5233,9 @@ Runner.prototype.run = function(fn) {
 
   debug('start');
 
+  // references cleanup to avoid memory leaks
+  this.on('suite end', cleanSuiteReferences);
+
   // callback
   this.on('end', function() {
     debug('end');
@@ -5013,6 +5271,48 @@ Runner.prototype.abort = function() {
   return this;
 };
 
+/**
+ * Filter suites based on `isOnly` logic.
+ *
+ * @param {Array} suite
+ * @returns {Boolean}
+ * @api private
+ */
+function filterOnly(suite) {
+  if (suite._onlyTests.length) {
+    // If the suite contains `only` tests, run those and ignore any nested suites.
+    suite.tests = suite._onlyTests;
+    suite.suites = [];
+  } else {
+    // Otherwise, do not run any of the tests in this suite.
+    suite.tests = [];
+    utils.forEach(suite._onlySuites, function(onlySuite) {
+      // If there are other `only` tests/suites nested in the current `only` suite, then filter that `only` suite.
+      // Otherwise, all of the tests on this `only` suite should be run, so don't filter it.
+      if (hasOnly(onlySuite)) {
+        filterOnly(onlySuite);
+      }
+    });
+    // Run the `only` suites, as well as any other suites that have `only` tests/suites as descendants.
+    suite.suites = filter(suite.suites, function(childSuite) {
+      return indexOf(suite._onlySuites, childSuite) !== -1 || filterOnly(childSuite);
+    });
+  }
+  // Keep the suite only if there is something to run
+  return suite.tests.length || suite.suites.length;
+}
+
+/**
+ * Determines whether a suite has an `only` test or suite as a descendant.
+ *
+ * @param {Array} suite
+ * @returns {Boolean}
+ * @api private
+ */
+function hasOnly(suite) {
+  return suite._onlyTests.length || suite._onlySuites.length || some(suite.suites, hasOnly);
+}
+
 /**
  * Filter leaks with the given globals flagged as `ok`.
  *
@@ -5024,13 +5324,13 @@ Runner.prototype.abort = function() {
 function filterLeaks(ok, globals) {
   return filter(globals, function(key) {
     // Firefox and Chrome exposes iframes as index inside the window object
-    if (/^d+/.test(key)) {
+    if (/^\d+/.test(key)) {
       return false;
     }
 
     // in firefox
-    // if runner runs in an iframe, this iframe's window.getInterface method not init at first
-    // it is assigned in some seconds
+    // if runner runs in an iframe, this iframe's window.getInterface method
+    // not init at first it is assigned in some seconds
     if (global.navigator && (/^getInterface/).test(key)) {
       return false;
     }
@@ -5080,7 +5380,7 @@ function extraGlobals() {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./pending":16,"./runnable":35,"./utils":39,"_process":51,"debug":2,"events":3}],37:[function(require,module,exports){
+},{"./pending":16,"./runnable":33,"./utils":38,"_process":67,"debug":2,"events":3}],35:[function(require,module,exports){
 /**
  * Module dependencies.
  */
@@ -5111,9 +5411,6 @@ exports = module.exports = Suite;
 exports.create = function(parent, title) {
   var suite = new Suite(title, parent.ctx);
   suite.parent = parent;
-  if (parent.pending) {
-    suite.pending = true;
-  }
   title = suite.fullTitle();
   parent.addSuite(suite);
   return suite;
@@ -5127,6 +5424,9 @@ exports.create = function(parent, title) {
  * @param {Context} parentContext
  */
 function Suite(title, parentContext) {
+  if (!utils.isString(title)) {
+    throw new Error('Suite `title` should be a "string" but "' + typeof title + '" was given instead.');
+  }
   this.title = title;
   function Context() {}
   Context.prototype = parentContext;
@@ -5143,6 +5443,9 @@ function Suite(title, parentContext) {
   this._enableTimeouts = true;
   this._slow = 75;
   this._bail = false;
+  this._retries = -1;
+  this._onlyTests = [];
+  this._onlySuites = [];
   this.delayed = false;
 }
 
@@ -5162,6 +5465,7 @@ Suite.prototype.clone = function() {
   debug('clone');
   suite.ctx = this.ctx;
   suite.timeout(this.timeout());
+  suite.retries(this.retries());
   suite.enableTimeouts(this.enableTimeouts());
   suite.slow(this.slow());
   suite.bail(this.bail());
@@ -5190,6 +5494,22 @@ Suite.prototype.timeout = function(ms) {
   return this;
 };
 
+/**
+ * Set number of times to retry a failed test.
+ *
+ * @api private
+ * @param {number|string} n
+ * @return {Suite|number} for chaining
+ */
+Suite.prototype.retries = function(n) {
+  if (!arguments.length) {
+    return this._retries;
+  }
+  debug('retries %d', n);
+  this._retries = parseInt(n, 10) || 0;
+  return this;
+};
+
 /**
   * Set timeout to `enabled`.
   *
@@ -5241,6 +5561,15 @@ Suite.prototype.bail = function(bail) {
   return this;
 };
 
+/**
+ * Check if this suite or its parent suite is marked as pending.
+ *
+ * @api private
+ */
+Suite.prototype.isPending = function() {
+  return this.pending || (this.parent && this.parent.isPending());
+};
+
 /**
  * Run `fn(test[, done])` before running tests.
  *
@@ -5250,7 +5579,7 @@ Suite.prototype.bail = function(bail) {
  * @return {Suite} for chaining
  */
 Suite.prototype.beforeAll = function(title, fn) {
-  if (this.pending) {
+  if (this.isPending()) {
     return this;
   }
   if (typeof title === 'function') {
@@ -5262,6 +5591,7 @@ Suite.prototype.beforeAll = function(title, fn) {
   var hook = new Hook(title, fn);
   hook.parent = this;
   hook.timeout(this.timeout());
+  hook.retries(this.retries());
   hook.enableTimeouts(this.enableTimeouts());
   hook.slow(this.slow());
   hook.ctx = this.ctx;
@@ -5279,7 +5609,7 @@ Suite.prototype.beforeAll = function(title, fn) {
  * @return {Suite} for chaining
  */
 Suite.prototype.afterAll = function(title, fn) {
-  if (this.pending) {
+  if (this.isPending()) {
     return this;
   }
   if (typeof title === 'function') {
@@ -5291,6 +5621,7 @@ Suite.prototype.afterAll = function(title, fn) {
   var hook = new Hook(title, fn);
   hook.parent = this;
   hook.timeout(this.timeout());
+  hook.retries(this.retries());
   hook.enableTimeouts(this.enableTimeouts());
   hook.slow(this.slow());
   hook.ctx = this.ctx;
@@ -5308,7 +5639,7 @@ Suite.prototype.afterAll = function(title, fn) {
  * @return {Suite} for chaining
  */
 Suite.prototype.beforeEach = function(title, fn) {
-  if (this.pending) {
+  if (this.isPending()) {
     return this;
   }
   if (typeof title === 'function') {
@@ -5320,6 +5651,7 @@ Suite.prototype.beforeEach = function(title, fn) {
   var hook = new Hook(title, fn);
   hook.parent = this;
   hook.timeout(this.timeout());
+  hook.retries(this.retries());
   hook.enableTimeouts(this.enableTimeouts());
   hook.slow(this.slow());
   hook.ctx = this.ctx;
@@ -5337,7 +5669,7 @@ Suite.prototype.beforeEach = function(title, fn) {
  * @return {Suite} for chaining
  */
 Suite.prototype.afterEach = function(title, fn) {
-  if (this.pending) {
+  if (this.isPending()) {
     return this;
   }
   if (typeof title === 'function') {
@@ -5349,6 +5681,7 @@ Suite.prototype.afterEach = function(title, fn) {
   var hook = new Hook(title, fn);
   hook.parent = this;
   hook.timeout(this.timeout());
+  hook.retries(this.retries());
   hook.enableTimeouts(this.enableTimeouts());
   hook.slow(this.slow());
   hook.ctx = this.ctx;
@@ -5367,6 +5700,7 @@ Suite.prototype.afterEach = function(title, fn) {
 Suite.prototype.addSuite = function(suite) {
   suite.parent = this;
   suite.timeout(this.timeout());
+  suite.retries(this.retries());
   suite.enableTimeouts(this.enableTimeouts());
   suite.slow(this.slow());
   suite.bail(this.bail());
@@ -5385,6 +5719,7 @@ Suite.prototype.addSuite = function(suite) {
 Suite.prototype.addTest = function(test) {
   test.parent = this;
   test.timeout(this.timeout());
+  test.retries(this.retries());
   test.enableTimeouts(this.enableTimeouts());
   test.slow(this.slow());
   test.ctx = this.ctx;
@@ -5447,13 +5782,14 @@ Suite.prototype.run = function run() {
   }
 };
 
-},{"./hook":7,"./ms":15,"./utils":39,"debug":2,"events":3}],38:[function(require,module,exports){
+},{"./hook":7,"./ms":15,"./utils":38,"debug":2,"events":3}],36:[function(require,module,exports){
 /**
  * Module dependencies.
  */
 
 var Runnable = require('./runnable');
-var inherits = require('./utils').inherits;
+var create = require('lodash.create');
+var isString = require('./utils').isString;
 
 /**
  * Expose `Test`.
@@ -5469,6 +5805,9 @@ module.exports = Test;
  * @param {Function} fn
  */
 function Test(title, fn) {
+  if (!isString(title)) {
+    throw new Error('Test `title` should be a "string" but "' + typeof title + '" was given instead.');
+  }
   Runnable.call(this, title, fn);
   this.pending = !fn;
   this.type = 'test';
@@ -5477,9 +5816,64 @@ function Test(title, fn) {
 /**
  * Inherit from `Runnable.prototype`.
  */
-inherits(Test, Runnable);
+Test.prototype = create(Runnable.prototype, {
+  constructor: Test
+});
+
+Test.prototype.clone = function() {
+  var test = new Test(this.title, this.fn);
+  test.timeout(this.timeout());
+  test.slow(this.slow());
+  test.enableTimeouts(this.enableTimeouts());
+  test.retries(this.retries());
+  test.currentRetry(this.currentRetry());
+  test.globals(this.globals());
+  test.parent = this.parent;
+  test.file = this.file;
+  test.ctx = this.ctx;
+  return test;
+};
+
+},{"./runnable":33,"./utils":38,"lodash.create":60}],37:[function(require,module,exports){
+'use strict';
+
+/**
+ * Pad a `number` with a ten's place zero.
+ *
+ * @param {number} number
+ * @return {string}
+ */
+function pad(number) {
+  var n = number.toString();
+  return n.length === 1 ? '0' + n : n;
+}
+
+/**
+ * Turn a `date` into an ISO string.
+ *
+ * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
+ *
+ * @param {Date} date
+ * @return {string}
+ */
+function toISOString(date) {
+  return date.getUTCFullYear()
+    + '-' + pad(date.getUTCMonth() + 1)
+    + '-' + pad(date.getUTCDate())
+    + 'T' + pad(date.getUTCHours())
+    + ':' + pad(date.getUTCMinutes())
+    + ':' + pad(date.getUTCSeconds())
+    + '.' + String((date.getUTCMilliseconds()/1000).toFixed(3)).slice(2, 5)
+    + 'Z';
+}
+
+/*
+ * Exports.
+ */
+
+module.exports = toISOString;
 
-},{"./runnable":35,"./utils":39}],39:[function(require,module,exports){
+},{}],38:[function(require,module,exports){
 (function (process,Buffer){
 /* eslint-env browser */
 
@@ -5487,14 +5881,17 @@ inherits(Test, Runnable);
  * Module dependencies.
  */
 
+var JSON = require('json3');
 var basename = require('path').basename;
 var debug = require('debug')('mocha:watch');
 var exists = require('fs').existsSync || require('path').existsSync;
 var glob = require('glob');
-var join = require('path').join;
+var path = require('path');
+var join = path.join;
 var readdirSync = require('fs').readdirSync;
 var statSync = require('fs').statSync;
 var watchFile = require('fs').watchFile;
+var toISOString = require('./to-iso-string');
 
 /**
  * Ignored directories.
@@ -5570,7 +5967,7 @@ exports.map = function(arr, fn, scope) {
  * @param {number} start
  * @return {number}
  */
-exports.indexOf = function(arr, obj, start) {
+var indexOf = exports.indexOf = function(arr, obj, start) {
   for (var i = start || 0, l = arr.length; i < l; i++) {
     if (arr[i] === obj) {
       return i;
@@ -5588,7 +5985,7 @@ exports.indexOf = function(arr, obj, start) {
  * @param {Object} val Initial value.
  * @return {*}
  */
-exports.reduce = function(arr, fn, val) {
+var reduce = exports.reduce = function(arr, fn, val) {
   var rval = val;
 
   for (var i = 0, l = arr.length; i < l; i++) {
@@ -5619,6 +6016,23 @@ exports.filter = function(arr, fn) {
   return ret;
 };
 
+/**
+ * Array#some (<=IE8)
+ *
+ * @api private
+ * @param {Array} arr
+ * @param {Function} fn
+ * @return {Array}
+ */
+exports.some = function(arr, fn) {
+  for (var i = 0, l = arr.length; i < l; i++) {
+    if (fn(arr[i])) {
+      return true;
+    }
+  }
+  return false;
+};
+
 /**
  * Object.keys (<=IE8)
  *
@@ -5670,6 +6084,8 @@ var isArray = typeof Array.isArray === 'function' ? Array.isArray : function(obj
   return Object.prototype.toString.call(obj) === '[object Array]';
 };
 
+exports.isArray = isArray;
+
 /**
  * Buffer.prototype.toJSON polyfill.
  *
@@ -5744,8 +6160,8 @@ exports.slug = function(str) {
 exports.clean = function(str) {
   str = str
     .replace(/\r\n?|[\n\u2028\u2029]/g, '\n').replace(/^\uFEFF/, '')
-    .replace(/^function *\(.*\)\s*{|\(.*\) *=> *{?/, '')
-    .replace(/\s+\}$/, '');
+    // (traditional)->  space/name     parameters    body     (lambda)-> parameters       body   multi-statement/single          keep body content
+    .replace(/^function(?:\s*|\s+[^(]*)\([^)]*\)\s*\{((?:.|\n)*?)\s*\}$|^\([^)]*\)\s*=>\s*(?:\{((?:.|\n)*?)\s*\}|((?:.|\n)*))$/, '$1$2$3');
 
   var spaces = str.match(/^\n?( *)/)[1].length;
   var tabs = str.match(/^\n?(\t*)/)[1].length;
@@ -5775,7 +6191,7 @@ exports.trim = function(str) {
  * @return {Object}
  */
 exports.parseQuery = function(qs) {
-  return exports.reduce(qs.replace('?', '').split('&'), function(obj, pair) {
+  return reduce(qs.replace('?', '').split('&'), function(obj, pair) {
     var i = pair.indexOf('=');
     var key = pair.slice(0, i);
     var val = pair.slice(++i);
@@ -5828,13 +6244,11 @@ exports.highlightTags = function(name) {
  *
  * @api private
  * @param {*} value The value to inspect.
- * @param {string} [type] The type of the value, if known.
+ * @param {string} typeHint The type of the value
  * @returns {string}
  */
-function emptyRepresentation(value, type) {
-  type = type || exports.type(value);
-
-  switch (type) {
+function emptyRepresentation(value, typeHint) {
+  switch (typeHint) {
     case 'function':
       return '[Function]';
     case 'object':
@@ -5853,7 +6267,7 @@ function emptyRepresentation(value, type) {
  * @api private
  * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
  * @param {*} value The value to test.
- * @returns {string}
+ * @returns {string} Computed type
  * @example
  * type({}) // 'object'
  * type([]) // 'array'
@@ -5865,8 +6279,9 @@ function emptyRepresentation(value, type) {
  * type(/foo/) // 'regexp'
  * type('type') // 'string'
  * type(global) // 'global'
+ * type(new String('foo') // 'object'
  */
-exports.type = function type(value) {
+var type = exports.type = function type(value) {
   if (value === undefined) {
     return 'undefined';
   } else if (value === null) {
@@ -5895,25 +6310,36 @@ exports.type = function type(value) {
  * @return {string}
  */
 exports.stringify = function(value) {
-  var type = exports.type(value);
-
-  if (!~exports.indexOf(['object', 'array', 'function'], type)) {
-    if (type !== 'buffer') {
+  var typeHint = type(value);
+
+  if (!~indexOf(['object', 'array', 'function'], typeHint)) {
+    if (typeHint === 'buffer') {
+      var json = value.toJSON();
+      // Based on the toJSON result
+      return jsonStringify(json.data && json.type ? json.data : json, 2)
+        .replace(/,(\n|$)/g, '$1');
+    }
+
+    // IE7/IE8 has a bizarre String constructor; needs to be coerced
+    // into an array and back to obj.
+    if (typeHint === 'string' && typeof value === 'object') {
+      value = reduce(value.split(''), function(acc, char, idx) {
+        acc[idx] = char;
+        return acc;
+      }, {});
+      typeHint = 'object';
+    } else {
       return jsonStringify(value);
     }
-    var json = value.toJSON();
-    // Based on the toJSON result
-    return jsonStringify(json.data && json.type ? json.data : json, 2)
-      .replace(/,(\n|$)/g, '$1');
   }
 
   for (var prop in value) {
     if (Object.prototype.hasOwnProperty.call(value, prop)) {
-      return jsonStringify(exports.canonicalize(value), 2).replace(/,(\n|$)/g, '$1');
+      return jsonStringify(exports.canonicalize(value, null, typeHint), 2).replace(/,(\n|$)/g, '$1');
     }
   }
 
-  return emptyRepresentation(value, type);
+  return emptyRepresentation(value, typeHint);
 };
 
 /**
@@ -5935,14 +6361,14 @@ function jsonStringify(object, spaces, depth) {
   var space = spaces * depth;
   var str = isArray(object) ? '[' : '{';
   var end = isArray(object) ? ']' : '}';
-  var length = object.length || exports.keys(object).length;
+  var length = typeof object.length === 'number' ? object.length : exports.keys(object).length;
   // `.repeat()` polyfill
   function repeat(s, n) {
     return new Array(n).join(s);
   }
 
   function _stringify(val) {
-    switch (exports.type(val)) {
+    switch (type(val)) {
       case 'null':
       case 'undefined':
         val = '[' + val + ']';
@@ -5953,15 +6379,19 @@ function jsonStringify(object, spaces, depth) {
         break;
       case 'boolean':
       case 'regexp':
+      case 'symbol':
       case 'number':
         val = val === 0 && (1 / val) === -Infinity // `-0`
           ? '-0'
           : val.toString();
         break;
       case 'date':
-        var sDate = isNaN(val.getTime())        // Invalid date
-          ? val.toString()
-          : val.toISOString();
+        var sDate;
+        if (isNaN(val.getTime())) { // Invalid date
+          sDate = val.toString();
+        } else {
+          sDate = val.toISOString ? val.toISOString() : toISOString(val);
+        }
         val = '[Date: ' + sDate + ']';
         break;
       case 'buffer':
@@ -5979,7 +6409,7 @@ function jsonStringify(object, spaces, depth) {
   }
 
   for (var i in object) {
-    if (!object.hasOwnProperty(i)) {
+    if (!Object.prototype.hasOwnProperty.call(object, i)) {
       continue; // not my business
     }
     --length;
@@ -6021,14 +6451,15 @@ exports.isBuffer = function(value) {
  * @see {@link exports.stringify}
  * @param {*} value Thing to inspect.  May or may not have properties.
  * @param {Array} [stack=[]] Stack of seen values
+ * @param {string} [typeHint] Type hint
  * @return {(Object|Array|Function|string|undefined)}
  */
-exports.canonicalize = function(value, stack) {
+exports.canonicalize = function canonicalize(value, stack, typeHint) {
   var canonicalizedObj;
   /* eslint-disable no-unused-vars */
   var prop;
   /* eslint-enable no-unused-vars */
-  var type = exports.type(value);
+  typeHint = typeHint || type(value);
   function withStack(value, fn) {
     stack.push(value);
     fn();
@@ -6037,11 +6468,11 @@ exports.canonicalize = function(value, stack) {
 
   stack = stack || [];
 
-  if (exports.indexOf(stack, value) !== -1) {
+  if (indexOf(stack, value) !== -1) {
     return '[Circular]';
   }
 
-  switch (type) {
+  switch (typeHint) {
     case 'undefined':
     case 'buffer':
     case 'null':
@@ -6062,7 +6493,7 @@ exports.canonicalize = function(value, stack) {
       }
       /* eslint-enable guard-for-in */
       if (!canonicalizedObj) {
-        canonicalizedObj = emptyRepresentation(value, type);
+        canonicalizedObj = emptyRepresentation(value, typeHint);
         break;
       }
     /* falls through */
@@ -6078,10 +6509,11 @@ exports.canonicalize = function(value, stack) {
     case 'number':
     case 'regexp':
     case 'boolean':
+    case 'symbol':
       canonicalizedObj = value;
       break;
     default:
-      canonicalizedObj = value.toString();
+      canonicalizedObj = value + '';
   }
 
   return canonicalizedObj;
@@ -6177,16 +6609,20 @@ exports.getError = function(err) {
  */
 exports.stackTraceFilter = function() {
   // TODO: Replace with `process.browser`
-  var slash = '/';
   var is = typeof document === 'undefined' ? { node: true } : { browser: true };
-  var cwd = is.node
-      ? process.cwd() + slash
-      : (typeof location === 'undefined' ? window.location : location).href.replace(/\/[^\/]*$/, '/');
+  var slash = path.sep;
+  var cwd;
+  if (is.node) {
+    cwd = process.cwd() + slash;
+  } else {
+    cwd = (typeof location === 'undefined' ? window.location : location).href.replace(/\/[^\/]*$/, '/');
+    slash = '/';
+  }
 
   function isMochaInternal(line) {
     return (~line.indexOf('node_modules' + slash + 'mocha' + slash))
-      || (~line.indexOf('components' + slash + 'mochajs' + slash))
-      || (~line.indexOf('components' + slash + 'mocha' + slash))
+      || (~line.indexOf('node_modules' + slash + 'mocha.js'))
+      || (~line.indexOf('bower_components' + slash + 'mocha.js'))
       || (~line.indexOf(slash + 'mocha.js'));
   }
 
@@ -6202,7 +6638,7 @@ exports.stackTraceFilter = function() {
   return function(stack) {
     stack = stack.split('\n');
 
-    stack = exports.reduce(stack, function(list, line) {
+    stack = reduce(stack, function(list, line) {
       if (isMochaInternal(line)) {
         return list;
       }
@@ -6212,7 +6648,11 @@ exports.stackTraceFilter = function() {
       }
 
       // Clean up cwd(absolute)
-      list.push(line.replace(cwd, ''));
+      if (/\(?.+:\d+:\d+\)?$/.test(line)) {
+        line = line.replace(cwd, '');
+      }
+
+      list.push(line);
       return list;
     }, []);
 
@@ -6220,8 +6660,131 @@ exports.stackTraceFilter = function() {
   };
 };
 
+/**
+ * Crude, but effective.
+ * @api
+ * @param {*} value
+ * @returns {boolean} Whether or not `value` is a Promise
+ */
+exports.isPromise = function isPromise(value) {
+  return typeof value === 'object' && typeof value.then === 'function';
+};
+
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"_process":51,"buffer":43,"debug":2,"fs":41,"glob":41,"path":41,"util":66}],40:[function(require,module,exports){
+},{"./to-iso-string":37,"_process":67,"buffer":44,"debug":2,"fs":42,"glob":42,"json3":54,"path":42,"util":84}],39:[function(require,module,exports){
+'use strict'
+
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+function init () {
+  var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+  for (var i = 0, len = code.length; i < len; ++i) {
+    lookup[i] = code[i]
+    revLookup[code.charCodeAt(i)] = i
+  }
+
+  revLookup['-'.charCodeAt(0)] = 62
+  revLookup['_'.charCodeAt(0)] = 63
+}
+
+init()
+
+function toByteArray (b64) {
+  var i, j, l, tmp, placeHolders, arr
+  var len = b64.length
+
+  if (len % 4 > 0) {
+    throw new Error('Invalid string. Length must be a multiple of 4')
+  }
+
+  // the number of equal signs (place holders)
+  // if there are two placeholders, than the two characters before it
+  // represent one byte
+  // if there is only one, then the three characters before it represent 2 bytes
+  // this is just a cheap hack to not do indexOf twice
+  placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+
+  // base64 is 4/3 + up to two characters of the original data
+  arr = new Arr(len * 3 / 4 - placeHolders)
+
+  // if there are placeholders, only get up to the last complete 4 chars
+  l = placeHolders > 0 ? len - 4 : len
+
+  var L = 0
+
+  for (i = 0, j = 0; i < l; i += 4, j += 3) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+    arr[L++] = (tmp >> 16) & 0xFF
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  if (placeHolders === 2) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[L++] = tmp & 0xFF
+  } else if (placeHolders === 1) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  return arr
+}
+
+function tripletToBase64 (num) {
+  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+  var tmp
+  var output = []
+  for (var i = start; i < end; i += 3) {
+    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    output.push(tripletToBase64(tmp))
+  }
+  return output.join('')
+}
+
+function fromByteArray (uint8) {
+  var tmp
+  var len = uint8.length
+  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+  var output = ''
+  var parts = []
+  var maxChunkLength = 16383 // must be multiple of 3
+
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+  }
+
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    tmp = uint8[len - 1]
+    output += lookup[tmp >> 2]
+    output += lookup[(tmp << 4) & 0x3F]
+    output += '=='
+  } else if (extraBytes === 2) {
+    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+    output += lookup[tmp >> 10]
+    output += lookup[(tmp >> 4) & 0x3F]
+    output += lookup[(tmp << 2) & 0x3F]
+    output += '='
+  }
+
+  parts.push(output)
+
+  return parts.join('')
+}
+
+},{}],40:[function(require,module,exports){
+
+},{}],41:[function(require,module,exports){
 (function (process){
 var WritableStream = require('stream').Writable
 var inherits = require('util').inherits
@@ -6250,28 +6813,139 @@ BrowserStdout.prototype._write = function(chunks, encoding, cb) {
 }
 
 }).call(this,require('_process'))
-},{"_process":51,"stream":63,"util":66}],41:[function(require,module,exports){
+},{"_process":67,"stream":79,"util":84}],42:[function(require,module,exports){
+arguments[4][40][0].apply(exports,arguments)
+},{"dup":40}],43:[function(require,module,exports){
+(function (global){
+'use strict';
+
+var buffer = require('buffer');
+var Buffer = buffer.Buffer;
+var SlowBuffer = buffer.SlowBuffer;
+var MAX_LEN = buffer.kMaxLength || 2147483647;
+exports.alloc = function alloc(size, fill, encoding) {
+  if (typeof Buffer.alloc === 'function') {
+    return Buffer.alloc(size, fill, encoding);
+  }
+  if (typeof encoding === 'number') {
+    throw new TypeError('encoding must not be number');
+  }
+  if (typeof size !== 'number') {
+    throw new TypeError('size must be a number');
+  }
+  if (size > MAX_LEN) {
+    throw new RangeError('size is too large');
+  }
+  var enc = encoding;
+  var _fill = fill;
+  if (_fill === undefined) {
+    enc = undefined;
+    _fill = 0;
+  }
+  var buf = new Buffer(size);
+  if (typeof _fill === 'string') {
+    var fillBuf = new Buffer(_fill, enc);
+    var flen = fillBuf.length;
+    var i = -1;
+    while (++i < size) {
+      buf[i] = fillBuf[i % flen];
+    }
+  } else {
+    buf.fill(_fill);
+  }
+  return buf;
+}
+exports.allocUnsafe = function allocUnsafe(size) {
+  if (typeof Buffer.allocUnsafe === 'function') {
+    return Buffer.allocUnsafe(size);
+  }
+  if (typeof size !== 'number') {
+    throw new TypeError('size must be a number');
+  }
+  if (size > MAX_LEN) {
+    throw new RangeError('size is too large');
+  }
+  return new Buffer(size);
+}
+exports.from = function from(value, encodingOrOffset, length) {
+  if (typeof Buffer.from === 'function' && (!global.Uint8Array || Uint8Array.from !== Buffer.from)) {
+    return Buffer.from(value, encodingOrOffset, length);
+  }
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number');
+  }
+  if (typeof value === 'string') {
+    return new Buffer(value, encodingOrOffset);
+  }
+  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
+    var offset = encodingOrOffset;
+    if (arguments.length === 1) {
+      return new Buffer(value);
+    }
+    if (typeof offset === 'undefined') {
+      offset = 0;
+    }
+    var len = length;
+    if (typeof len === 'undefined') {
+      len = value.byteLength - offset;
+    }
+    if (offset >= value.byteLength) {
+      throw new RangeError('\'offset\' is out of bounds');
+    }
+    if (len > value.byteLength - offset) {
+      throw new RangeError('\'length\' is out of bounds');
+    }
+    return new Buffer(value.slice(offset, offset + len));
+  }
+  if (Buffer.isBuffer(value)) {
+    var out = new Buffer(value.length);
+    value.copy(out, 0, 0, value.length);
+    return out;
+  }
+  if (value) {
+    if (Array.isArray(value) || (typeof ArrayBuffer !== 'undefined' && value.buffer instanceof ArrayBuffer) || 'length' in value) {
+      return new Buffer(value);
+    }
+    if (value.type === 'Buffer' && Array.isArray(value.data)) {
+      return new Buffer(value.data);
+    }
+  }
+
+  throw new TypeError('First argument must be a string, Buffer, ' + 'ArrayBuffer, Array, or array-like object.');
+}
+exports.allocUnsafeSlow = function allocUnsafeSlow(size) {
+  if (typeof Buffer.allocUnsafeSlow === 'function') {
+    return Buffer.allocUnsafeSlow(size);
+  }
+  if (typeof size !== 'number') {
+    throw new TypeError('size must be a number');
+  }
+  if (size >= MAX_LEN) {
+    throw new RangeError('size is too large');
+  }
+  return new SlowBuffer(size);
+}
 
-},{}],42:[function(require,module,exports){
-arguments[4][41][0].apply(exports,arguments)
-},{"dup":41}],43:[function(require,module,exports){
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"buffer":44}],44:[function(require,module,exports){
+(function (global){
 /*!
  * The buffer module from node.js, for the browser.
  *
  * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
  * @license  MIT
  */
+/* eslint-disable no-proto */
+
+'use strict'
 
 var base64 = require('base64-js')
 var ieee754 = require('ieee754')
-var isArray = require('is-array')
+var isArray = require('isarray')
 
 exports.Buffer = Buffer
 exports.SlowBuffer = SlowBuffer
 exports.INSPECT_MAX_BYTES = 50
-Buffer.poolSize = 8192 // not used by this implementation
-
-var rootParent = {}
 
 /**
  * If `Buffer.TYPED_ARRAY_SUPPORT`:
@@ -6289,9 +6963,6 @@ var rootParent = {}
  *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
  *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
  *
- *   - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property
- *     on objects.
- *
  *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
  *
  *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
@@ -6300,20 +6971,26 @@ var rootParent = {}
  * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
  * get the Object implementation, which is slower but behaves correctly.
  */
-Buffer.TYPED_ARRAY_SUPPORT = (function () {
-  function Bar () {}
+Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
+  ? global.TYPED_ARRAY_SUPPORT
+  : typedArraySupport()
+
+/*
+ * Export kMaxLength after typed array support is determined.
+ */
+exports.kMaxLength = kMaxLength()
+
+function typedArraySupport () {
   try {
     var arr = new Uint8Array(1)
-    arr.foo = function () { return 42 }
-    arr.constructor = Bar
+    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
     return arr.foo() === 42 && // typed array instances can be augmented
-        arr.constructor === Bar && // constructor can be set
         typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
         arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
   } catch (e) {
     return false
   }
-})()
+}
 
 function kMaxLength () {
   return Buffer.TYPED_ARRAY_SUPPORT
@@ -6321,172 +6998,252 @@ function kMaxLength () {
     : 0x3fffffff
 }
 
+function createBuffer (that, length) {
+  if (kMaxLength() < length) {
+    throw new RangeError('Invalid typed array length')
+  }
+  if (Buffer.TYPED_ARRAY_SUPPORT) {
+    // Return an augmented `Uint8Array` instance, for best performance
+    that = new Uint8Array(length)
+    that.__proto__ = Buffer.prototype
+  } else {
+    // Fallback: Return an object instance of the Buffer class
+    if (that === null) {
+      that = new Buffer(length)
+    }
+    that.length = length
+  }
+
+  return that
+}
+
 /**
- * Class: Buffer
- * =============
- *
- * The Buffer constructor returns instances of `Uint8Array` that are augmented
- * with function properties for all the node `Buffer` API functions. We use
- * `Uint8Array` so that square bracket notation works as expected -- it returns
- * a single octet.
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
  *
- * By augmenting the instances, we can avoid modifying the `Uint8Array`
- * prototype.
+ * The `Uint8Array` prototype remains unmodified.
  */
-function Buffer (arg) {
-  if (!(this instanceof Buffer)) {
-    // Avoid going through an ArgumentsAdaptorTrampoline in the common case.
-    if (arguments.length > 1) return new Buffer(arg, arguments[1])
-    return new Buffer(arg)
-  }
 
-  this.length = 0
-  this.parent = undefined
+function Buffer (arg, encodingOrOffset, length) {
+  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
+    return new Buffer(arg, encodingOrOffset, length)
+  }
 
   // Common case.
   if (typeof arg === 'number') {
-    return fromNumber(this, arg)
+    if (typeof encodingOrOffset === 'string') {
+      throw new Error(
+        'If encoding is specified then the first argument must be a string'
+      )
+    }
+    return allocUnsafe(this, arg)
   }
+  return from(this, arg, encodingOrOffset, length)
+}
 
-  // Slightly less common case.
-  if (typeof arg === 'string') {
-    return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
-  }
+Buffer.poolSize = 8192 // not used by this implementation
 
-  // Unusual.
-  return fromObject(this, arg)
+// TODO: Legacy, not needed anymore. Remove in next major version.
+Buffer._augment = function (arr) {
+  arr.__proto__ = Buffer.prototype
+  return arr
 }
 
-function fromNumber (that, length) {
-  that = allocate(that, length < 0 ? 0 : checked(length) | 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-    for (var i = 0; i < length; i++) {
-      that[i] = 0
-    }
+function from (that, value, encodingOrOffset, length) {
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number')
   }
-  return that
-}
 
-function fromString (that, string, encoding) {
-  if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'
+  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
+    return fromArrayBuffer(that, value, encodingOrOffset, length)
+  }
 
-  // Assumption: byteLength() return value is always < kMaxLength.
-  var length = byteLength(string, encoding) | 0
-  that = allocate(that, length)
+  if (typeof value === 'string') {
+    return fromString(that, value, encodingOrOffset)
+  }
 
-  that.write(string, encoding)
-  return that
+  return fromObject(that, value)
 }
 
-function fromObject (that, object) {
-  if (Buffer.isBuffer(object)) return fromBuffer(that, object)
-
-  if (isArray(object)) return fromArray(that, object)
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+  return from(null, value, encodingOrOffset, length)
+}
 
-  if (object == null) {
-    throw new TypeError('must start with number, buffer, array or string')
+if (Buffer.TYPED_ARRAY_SUPPORT) {
+  Buffer.prototype.__proto__ = Uint8Array.prototype
+  Buffer.__proto__ = Uint8Array
+  if (typeof Symbol !== 'undefined' && Symbol.species &&
+      Buffer[Symbol.species] === Buffer) {
+    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+    Object.defineProperty(Buffer, Symbol.species, {
+      value: null,
+      configurable: true
+    })
   }
+}
 
-  if (typeof ArrayBuffer !== 'undefined') {
-    if (object.buffer instanceof ArrayBuffer) {
-      return fromTypedArray(that, object)
-    }
-    if (object instanceof ArrayBuffer) {
-      return fromArrayBuffer(that, object)
-    }
+function assertSize (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('"size" argument must be a number')
+  } else if (size < 0) {
+    throw new RangeError('"size" argument must not be negative')
   }
+}
 
-  if (object.length) return fromArrayLike(that, object)
-
-  return fromJsonObject(that, object)
+function alloc (that, size, fill, encoding) {
+  assertSize(size)
+  if (size <= 0) {
+    return createBuffer(that, size)
+  }
+  if (fill !== undefined) {
+    // Only pay attention to encoding if it's a string. This
+    // prevents accidentally sending in a number that would
+    // be interpretted as a start offset.
+    return typeof encoding === 'string'
+      ? createBuffer(that, size).fill(fill, encoding)
+      : createBuffer(that, size).fill(fill)
+  }
+  return createBuffer(that, size)
 }
 
-function fromBuffer (that, buffer) {
-  var length = checked(buffer.length) | 0
-  that = allocate(that, length)
-  buffer.copy(that, 0, 0, length)
-  return that
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+  return alloc(null, size, fill, encoding)
 }
 
-function fromArray (that, array) {
-  var length = checked(array.length) | 0
-  that = allocate(that, length)
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
+function allocUnsafe (that, size) {
+  assertSize(size)
+  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
+  if (!Buffer.TYPED_ARRAY_SUPPORT) {
+    for (var i = 0; i < size; ++i) {
+      that[i] = 0
+    }
   }
   return that
 }
 
-// Duplicate of fromArray() to keep fromArray() monomorphic.
-function fromTypedArray (that, array) {
-  var length = checked(array.length) | 0
-  that = allocate(that, length)
-  // Truncating the elements is probably not what people expect from typed
-  // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior
-  // of the old Buffer constructor.
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
-  }
-  return that
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+  return allocUnsafe(null, size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+  return allocUnsafe(null, size)
 }
 
-function fromArrayBuffer (that, array) {
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    array.byteLength
-    that = Buffer._augment(new Uint8Array(array))
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    that = fromTypedArray(that, new Uint8Array(array))
+function fromString (that, string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('"encoding" must be a valid string encoding')
+  }
+
+  var length = byteLength(string, encoding) | 0
+  that = createBuffer(that, length)
+
+  var actual = that.write(string, encoding)
+
+  if (actual !== length) {
+    // Writing a hex string, for example, that contains invalid characters will
+    // cause everything after the first invalid character to be ignored. (e.g.
+    // 'abxxcd' will be treated as 'ab')
+    that = that.slice(0, actual)
   }
+
   return that
 }
 
 function fromArrayLike (that, array) {
-  var length = checked(array.length) | 0
-  that = allocate(that, length)
+  var length = array.length < 0 ? 0 : checked(array.length) | 0
+  that = createBuffer(that, length)
   for (var i = 0; i < length; i += 1) {
     that[i] = array[i] & 255
   }
   return that
 }
 
-// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object.
-// Returns a zero-length buffer for inputs that don't conform to the spec.
-function fromJsonObject (that, object) {
-  var array
-  var length = 0
+function fromArrayBuffer (that, array, byteOffset, length) {
+  array.byteLength // this throws if `array` is not a valid ArrayBuffer
 
-  if (object.type === 'Buffer' && isArray(object.data)) {
-    array = object.data
-    length = checked(array.length) | 0
+  if (byteOffset < 0 || array.byteLength < byteOffset) {
+    throw new RangeError('\'offset\' is out of bounds')
   }
-  that = allocate(that, length)
 
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
+  if (array.byteLength < byteOffset + (length || 0)) {
+    throw new RangeError('\'length\' is out of bounds')
+  }
+
+  if (byteOffset === undefined && length === undefined) {
+    array = new Uint8Array(array)
+  } else if (length === undefined) {
+    array = new Uint8Array(array, byteOffset)
+  } else {
+    array = new Uint8Array(array, byteOffset, length)
   }
-  return that
-}
 
-function allocate (that, length) {
   if (Buffer.TYPED_ARRAY_SUPPORT) {
     // Return an augmented `Uint8Array` instance, for best performance
-    that = Buffer._augment(new Uint8Array(length))
+    that = array
+    that.__proto__ = Buffer.prototype
   } else {
     // Fallback: Return an object instance of the Buffer class
-    that.length = length
-    that._isBuffer = true
+    that = fromArrayLike(that, array)
+  }
+  return that
+}
+
+function fromObject (that, obj) {
+  if (Buffer.isBuffer(obj)) {
+    var len = checked(obj.length) | 0
+    that = createBuffer(that, len)
+
+    if (that.length === 0) {
+      return that
+    }
+
+    obj.copy(that, 0, 0, len)
+    return that
   }
 
-  var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
-  if (fromPool) that.parent = rootParent
+  if (obj) {
+    if ((typeof ArrayBuffer !== 'undefined' &&
+        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
+      if (typeof obj.length !== 'number' || isnan(obj.length)) {
+        return createBuffer(that, 0)
+      }
+      return fromArrayLike(that, obj)
+    }
+
+    if (obj.type === 'Buffer' && isArray(obj.data)) {
+      return fromArrayLike(that, obj.data)
+    }
+  }
 
-  return that
+  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
 }
 
 function checked (length) {
-  // Note: cannot use `length < kMaxLength` here because that fails when
+  // Note: cannot use `length < kMaxLength()` here because that fails when
   // length is NaN (which is otherwise coerced to zero.)
   if (length >= kMaxLength()) {
     throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
@@ -6495,12 +7252,11 @@ function checked (length) {
   return length | 0
 }
 
-function SlowBuffer (subject, encoding) {
-  if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)
-
-  var buf = new Buffer(subject, encoding)
-  delete buf.parent
-  return buf
+function SlowBuffer (length) {
+  if (+length != length) { // eslint-disable-line eqeqeq
+    length = 0
+  }
+  return Buffer.alloc(+length)
 }
 
 Buffer.isBuffer = function isBuffer (b) {
@@ -6517,17 +7273,12 @@ Buffer.compare = function compare (a, b) {
   var x = a.length
   var y = b.length
 
-  var i = 0
-  var len = Math.min(x, y)
-  while (i < len) {
-    if (a[i] !== b[i]) break
-
-    ++i
-  }
-
-  if (i !== len) {
-    x = a[i]
-    y = b[i]
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i]
+      y = b[i]
+      break
+    }
   }
 
   if (x < y) return -1
@@ -6541,9 +7292,9 @@ Buffer.isEncoding = function isEncoding (encoding) {
     case 'utf8':
     case 'utf-8':
     case 'ascii':
+    case 'latin1':
     case 'binary':
     case 'base64':
-    case 'raw':
     case 'ucs2':
     case 'ucs-2':
     case 'utf16le':
@@ -6555,32 +7306,46 @@ Buffer.isEncoding = function isEncoding (encoding) {
 }
 
 Buffer.concat = function concat (list, length) {
-  if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')
+  if (!isArray(list)) {
+    throw new TypeError('"list" argument must be an Array of Buffers')
+  }
 
   if (list.length === 0) {
-    return new Buffer(0)
+    return Buffer.alloc(0)
   }
 
   var i
   if (length === undefined) {
     length = 0
-    for (i = 0; i < list.length; i++) {
+    for (i = 0; i < list.length; ++i) {
       length += list[i].length
     }
   }
 
-  var buf = new Buffer(length)
+  var buffer = Buffer.allocUnsafe(length)
   var pos = 0
-  for (i = 0; i < list.length; i++) {
-    var item = list[i]
-    item.copy(buf, pos)
-    pos += item.length
+  for (i = 0; i < list.length; ++i) {
+    var buf = list[i]
+    if (!Buffer.isBuffer(buf)) {
+      throw new TypeError('"list" argument must be an Array of Buffers')
+    }
+    buf.copy(buffer, pos)
+    pos += buf.length
   }
-  return buf
+  return buffer
 }
 
 function byteLength (string, encoding) {
-  if (typeof string !== 'string') string = '' + string
+  if (Buffer.isBuffer(string)) {
+    return string.length
+  }
+  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
+      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
+    return string.byteLength
+  }
+  if (typeof string !== 'string') {
+    string = '' + string
+  }
 
   var len = string.length
   if (len === 0) return 0
@@ -6590,13 +7355,12 @@ function byteLength (string, encoding) {
   for (;;) {
     switch (encoding) {
       case 'ascii':
+      case 'latin1':
       case 'binary':
-      // Deprecated
-      case 'raw':
-      case 'raws':
         return len
       case 'utf8':
       case 'utf-8':
+      case undefined:
         return utf8ToBytes(string).length
       case 'ucs2':
       case 'ucs-2':
@@ -6616,20 +7380,42 @@ function byteLength (string, encoding) {
 }
 Buffer.byteLength = byteLength
 
-// pre-set for values that may exist in the future
-Buffer.prototype.length = undefined
-Buffer.prototype.parent = undefined
-
 function slowToString (encoding, start, end) {
   var loweredCase = false
 
-  start = start | 0
-  end = end === undefined || end === Infinity ? this.length : end | 0
+  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+  // property of a typed array.
+
+  // This behaves neither like String nor Uint8Array in that we set start/end
+  // to their upper/lower bounds if the value passed is out of range.
+  // undefined is handled specially as per ECMA-262 6th Edition,
+  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+  if (start === undefined || start < 0) {
+    start = 0
+  }
+  // Return early if start > this.length. Done here to prevent potential uint32
+  // coercion fail below.
+  if (start > this.length) {
+    return ''
+  }
+
+  if (end === undefined || end > this.length) {
+    end = this.length
+  }
+
+  if (end <= 0) {
+    return ''
+  }
+
+  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+  end >>>= 0
+  start >>>= 0
+
+  if (end <= start) {
+    return ''
+  }
 
   if (!encoding) encoding = 'utf8'
-  if (start < 0) start = 0
-  if (end > this.length) end = this.length
-  if (end <= start) return ''
 
   while (true) {
     switch (encoding) {
@@ -6643,8 +7429,9 @@ function slowToString (encoding, start, end) {
       case 'ascii':
         return asciiSlice(this, start, end)
 
+      case 'latin1':
       case 'binary':
-        return binarySlice(this, start, end)
+        return latin1Slice(this, start, end)
 
       case 'base64':
         return base64Slice(this, start, end)
@@ -6663,6 +7450,53 @@ function slowToString (encoding, start, end) {
   }
 }
 
+// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
+// Buffer instances.
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+  var i = b[n]
+  b[n] = b[m]
+  b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+  var len = this.length
+  if (len % 2 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 16-bits')
+  }
+  for (var i = 0; i < len; i += 2) {
+    swap(this, i, i + 1)
+  }
+  return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+  var len = this.length
+  if (len % 4 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 32-bits')
+  }
+  for (var i = 0; i < len; i += 4) {
+    swap(this, i, i + 3)
+    swap(this, i + 1, i + 2)
+  }
+  return this
+}
+
+Buffer.prototype.swap64 = function swap64 () {
+  var len = this.length
+  if (len % 8 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 64-bits')
+  }
+  for (var i = 0; i < len; i += 8) {
+    swap(this, i, i + 7)
+    swap(this, i + 1, i + 6)
+    swap(this, i + 2, i + 5)
+    swap(this, i + 3, i + 4)
+  }
+  return this
+}
+
 Buffer.prototype.toString = function toString () {
   var length = this.length | 0
   if (length === 0) return ''
@@ -6686,63 +7520,197 @@ Buffer.prototype.inspect = function inspect () {
   return '<Buffer ' + str + '>'
 }
 
-Buffer.prototype.compare = function compare (b) {
-  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
-  if (this === b) return 0
-  return Buffer.compare(this, b)
-}
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+  if (!Buffer.isBuffer(target)) {
+    throw new TypeError('Argument must be a Buffer')
+  }
+
+  if (start === undefined) {
+    start = 0
+  }
+  if (end === undefined) {
+    end = target ? target.length : 0
+  }
+  if (thisStart === undefined) {
+    thisStart = 0
+  }
+  if (thisEnd === undefined) {
+    thisEnd = this.length
+  }
+
+  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+    throw new RangeError('out of range index')
+  }
+
+  if (thisStart >= thisEnd && start >= end) {
+    return 0
+  }
+  if (thisStart >= thisEnd) {
+    return -1
+  }
+  if (start >= end) {
+    return 1
+  }
+
+  start >>>= 0
+  end >>>= 0
+  thisStart >>>= 0
+  thisEnd >>>= 0
 
-Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
-  if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
-  else if (byteOffset < -0x80000000) byteOffset = -0x80000000
-  byteOffset >>= 0
+  if (this === target) return 0
 
-  if (this.length === 0) return -1
-  if (byteOffset >= this.length) return -1
+  var x = thisEnd - thisStart
+  var y = end - start
+  var len = Math.min(x, y)
+
+  var thisCopy = this.slice(thisStart, thisEnd)
+  var targetCopy = target.slice(start, end)
+
+  for (var i = 0; i < len; ++i) {
+    if (thisCopy[i] !== targetCopy[i]) {
+      x = thisCopy[i]
+      y = targetCopy[i]
+      break
+    }
+  }
 
-  // Negative offsets start from the end of the buffer
-  if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
 
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+  // Empty buffer means no match
+  if (buffer.length === 0) return -1
+
+  // Normalize byteOffset
+  if (typeof byteOffset === 'string') {
+    encoding = byteOffset
+    byteOffset = 0
+  } else if (byteOffset > 0x7fffffff) {
+    byteOffset = 0x7fffffff
+  } else if (byteOffset < -0x80000000) {
+    byteOffset = -0x80000000
+  }
+  byteOffset = +byteOffset  // Coerce to Number.
+  if (isNaN(byteOffset)) {
+    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+    byteOffset = dir ? 0 : (buffer.length - 1)
+  }
+
+  // Normalize byteOffset: negative offsets start from the end of the buffer
+  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+  if (byteOffset >= buffer.length) {
+    if (dir) return -1
+    else byteOffset = buffer.length - 1
+  } else if (byteOffset < 0) {
+    if (dir) byteOffset = 0
+    else return -1
+  }
+
+  // Normalize val
   if (typeof val === 'string') {
-    if (val.length === 0) return -1 // special case: looking for empty string always fails
-    return String.prototype.indexOf.call(this, val, byteOffset)
+    val = Buffer.from(val, encoding)
   }
+
+  // Finally, search either indexOf (if dir is true) or lastIndexOf
   if (Buffer.isBuffer(val)) {
-    return arrayIndexOf(this, val, byteOffset)
+    // Special case: looking for empty string/buffer always fails
+    if (val.length === 0) {
+      return -1
+    }
+    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+  } else if (typeof val === 'number') {
+    val = val & 0xFF // Search for a byte value [0-255]
+    if (Buffer.TYPED_ARRAY_SUPPORT &&
+        typeof Uint8Array.prototype.indexOf === 'function') {
+      if (dir) {
+        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+      } else {
+        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+      }
+    }
+    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
   }
-  if (typeof val === 'number') {
-    if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
-      return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
+
+  throw new TypeError('val must be string, number or Buffer')
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+  var indexSize = 1
+  var arrLength = arr.length
+  var valLength = val.length
+
+  if (encoding !== undefined) {
+    encoding = String(encoding).toLowerCase()
+    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+        encoding === 'utf16le' || encoding === 'utf-16le') {
+      if (arr.length < 2 || val.length < 2) {
+        return -1
+      }
+      indexSize = 2
+      arrLength /= 2
+      valLength /= 2
+      byteOffset /= 2
+    }
+  }
+
+  function read (buf, i) {
+    if (indexSize === 1) {
+      return buf[i]
+    } else {
+      return buf.readUInt16BE(i * indexSize)
     }
-    return arrayIndexOf(this, [ val ], byteOffset)
   }
 
-  function arrayIndexOf (arr, val, byteOffset) {
+  var i
+  if (dir) {
     var foundIndex = -1
-    for (var i = 0; byteOffset + i < arr.length; i++) {
-      if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
+    for (i = byteOffset; i < arrLength; i++) {
+      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
         if (foundIndex === -1) foundIndex = i
-        if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
+        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
       } else {
+        if (foundIndex !== -1) i -= i - foundIndex
         foundIndex = -1
       }
     }
-    return -1
+  } else {
+    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+    for (i = byteOffset; i >= 0; i--) {
+      var found = true
+      for (var j = 0; j < valLength; j++) {
+        if (read(arr, i + j) !== read(val, j)) {
+          found = false
+          break
+        }
+      }
+      if (found) return i
+    }
   }
 
-  throw new TypeError('val must be string, number or Buffer')
+  return -1
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+  return this.indexOf(val, byteOffset, encoding) !== -1
 }
 
-// `get` is deprecated
-Buffer.prototype.get = function get (offset) {
-  console.log('.get() is deprecated. Access using array indexes instead.')
-  return this.readUInt8(offset)
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
 }
 
-// `set` is deprecated
-Buffer.prototype.set = function set (v, offset) {
-  console.log('.set() is deprecated. Access using array indexes instead.')
-  return this.writeUInt8(v, offset)
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
 }
 
 function hexWrite (buf, string, offset, length) {
@@ -6759,14 +7727,14 @@ function hexWrite (buf, string, offset, length) {
 
   // must be an even number of digits
   var strLen = string.length
-  if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
 
   if (length > strLen / 2) {
     length = strLen / 2
   }
-  for (var i = 0; i < length; i++) {
+  for (var i = 0; i < length; ++i) {
     var parsed = parseInt(string.substr(i * 2, 2), 16)
-    if (isNaN(parsed)) throw new Error('Invalid hex string')
+    if (isNaN(parsed)) return i
     buf[offset + i] = parsed
   }
   return i
@@ -6780,7 +7748,7 @@ function asciiWrite (buf, string, offset, length) {
   return blitBuffer(asciiToBytes(string), buf, offset, length)
 }
 
-function binaryWrite (buf, string, offset, length) {
+function latin1Write (buf, string, offset, length) {
   return asciiWrite(buf, string, offset, length)
 }
 
@@ -6815,17 +7783,16 @@ Buffer.prototype.write = function write (string, offset, length, encoding) {
     }
   // legacy write(string, encoding, offset, length) - remove in v0.13
   } else {
-    var swap = encoding
-    encoding = offset
-    offset = length | 0
-    length = swap
+    throw new Error(
+      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+    )
   }
 
   var remaining = this.length - offset
   if (length === undefined || length > remaining) length = remaining
 
   if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('attempt to write outside buffer bounds')
+    throw new RangeError('Attempt to write outside buffer bounds')
   }
 
   if (!encoding) encoding = 'utf8'
@@ -6843,8 +7810,9 @@ Buffer.prototype.write = function write (string, offset, length, encoding) {
       case 'ascii':
         return asciiWrite(this, string, offset, length)
 
+      case 'latin1':
       case 'binary':
-        return binaryWrite(this, string, offset, length)
+        return latin1Write(this, string, offset, length)
 
       case 'base64':
         // Warning: maxLength not taken into account in base64Write
@@ -6979,17 +7947,17 @@ function asciiSlice (buf, start, end) {
   var ret = ''
   end = Math.min(buf.length, end)
 
-  for (var i = start; i < end; i++) {
+  for (var i = start; i < end; ++i) {
     ret += String.fromCharCode(buf[i] & 0x7F)
   }
   return ret
 }
 
-function binarySlice (buf, start, end) {
+function latin1Slice (buf, start, end) {
   var ret = ''
   end = Math.min(buf.length, end)
 
-  for (var i = start; i < end; i++) {
+  for (var i = start; i < end; ++i) {
     ret += String.fromCharCode(buf[i])
   }
   return ret
@@ -7002,7 +7970,7 @@ function hexSlice (buf, start, end) {
   if (!end || end < 0 || end > len) end = len
 
   var out = ''
-  for (var i = start; i < end; i++) {
+  for (var i = start; i < end; ++i) {
     out += toHex(buf[i])
   }
   return out
@@ -7040,17 +8008,16 @@ Buffer.prototype.slice = function slice (start, end) {
 
   var newBuf
   if (Buffer.TYPED_ARRAY_SUPPORT) {
-    newBuf = Buffer._augment(this.subarray(start, end))
+    newBuf = this.subarray(start, end)
+    newBuf.__proto__ = Buffer.prototype
   } else {
     var sliceLen = end - start
     newBuf = new Buffer(sliceLen, undefined)
-    for (var i = 0; i < sliceLen; i++) {
+    for (var i = 0; i < sliceLen; ++i) {
       newBuf[i] = this[i + start]
     }
   }
 
-  if (newBuf.length) newBuf.parent = this.parent || this
-
   return newBuf
 }
 
@@ -7219,16 +8186,19 @@ Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
 }
 
 function checkInt (buf, value, offset, ext, max, min) {
-  if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
-  if (value > max || value < min) throw new RangeError('value is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('index out of range')
+  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
 }
 
 Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
   value = +value
   offset = offset | 0
   byteLength = byteLength | 0
-  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
 
   var mul = 1
   var i = 0
@@ -7244,7 +8214,10 @@ Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength,
   value = +value
   offset = offset | 0
   byteLength = byteLength | 0
-  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
 
   var i = byteLength - 1
   var mul = 1
@@ -7261,13 +8234,13 @@ Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
   offset = offset | 0
   if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
   if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
-  this[offset] = value
+  this[offset] = (value & 0xff)
   return offset + 1
 }
 
 function objectWriteUInt16 (buf, value, offset, littleEndian) {
   if (value < 0) value = 0xffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
+  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
     buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
       (littleEndian ? i : 1 - i) * 8
   }
@@ -7278,7 +8251,7 @@ Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert
   offset = offset | 0
   if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
   if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = value
+    this[offset] = (value & 0xff)
     this[offset + 1] = (value >>> 8)
   } else {
     objectWriteUInt16(this, value, offset, true)
@@ -7292,7 +8265,7 @@ Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert
   if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
   if (Buffer.TYPED_ARRAY_SUPPORT) {
     this[offset] = (value >>> 8)
-    this[offset + 1] = value
+    this[offset + 1] = (value & 0xff)
   } else {
     objectWriteUInt16(this, value, offset, false)
   }
@@ -7301,7 +8274,7 @@ Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert
 
 function objectWriteUInt32 (buf, value, offset, littleEndian) {
   if (value < 0) value = 0xffffffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
+  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
     buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
   }
 }
@@ -7314,7 +8287,7 @@ Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert
     this[offset + 3] = (value >>> 24)
     this[offset + 2] = (value >>> 16)
     this[offset + 1] = (value >>> 8)
-    this[offset] = value
+    this[offset] = (value & 0xff)
   } else {
     objectWriteUInt32(this, value, offset, true)
   }
@@ -7329,7 +8302,7 @@ Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert
     this[offset] = (value >>> 24)
     this[offset + 1] = (value >>> 16)
     this[offset + 2] = (value >>> 8)
-    this[offset + 3] = value
+    this[offset + 3] = (value & 0xff)
   } else {
     objectWriteUInt32(this, value, offset, false)
   }
@@ -7347,9 +8320,12 @@ Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, no
 
   var i = 0
   var mul = 1
-  var sub = value < 0 ? 1 : 0
+  var sub = 0
   this[offset] = value & 0xFF
   while (++i < byteLength && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+      sub = 1
+    }
     this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
   }
 
@@ -7367,9 +8343,12 @@ Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, no
 
   var i = byteLength - 1
   var mul = 1
-  var sub = value < 0 ? 1 : 0
+  var sub = 0
   this[offset + i] = value & 0xFF
   while (--i >= 0 && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+      sub = 1
+    }
     this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
   }
 
@@ -7382,7 +8361,7 @@ Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
   if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
   if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
   if (value < 0) value = 0xff + value + 1
-  this[offset] = value
+  this[offset] = (value & 0xff)
   return offset + 1
 }
 
@@ -7391,7 +8370,7 @@ Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert)
   offset = offset | 0
   if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
   if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = value
+    this[offset] = (value & 0xff)
     this[offset + 1] = (value >>> 8)
   } else {
     objectWriteUInt16(this, value, offset, true)
@@ -7405,7 +8384,7 @@ Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert)
   if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
   if (Buffer.TYPED_ARRAY_SUPPORT) {
     this[offset] = (value >>> 8)
-    this[offset + 1] = value
+    this[offset + 1] = (value & 0xff)
   } else {
     objectWriteUInt16(this, value, offset, false)
   }
@@ -7417,7 +8396,7 @@ Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert)
   offset = offset | 0
   if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
   if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = value
+    this[offset] = (value & 0xff)
     this[offset + 1] = (value >>> 8)
     this[offset + 2] = (value >>> 16)
     this[offset + 3] = (value >>> 24)
@@ -7436,7 +8415,7 @@ Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert)
     this[offset] = (value >>> 24)
     this[offset + 1] = (value >>> 16)
     this[offset + 2] = (value >>> 8)
-    this[offset + 3] = value
+    this[offset + 3] = (value & 0xff)
   } else {
     objectWriteUInt32(this, value, offset, false)
   }
@@ -7444,9 +8423,8 @@ Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert)
 }
 
 function checkIEEE754 (buf, value, offset, ext, max, min) {
-  if (value > max || value < min) throw new RangeError('value is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('index out of range')
-  if (offset < 0) throw new RangeError('index out of range')
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+  if (offset < 0) throw new RangeError('Index out of range')
 }
 
 function writeFloat (buf, value, offset, littleEndian, noAssert) {
@@ -7511,143 +8489,91 @@ Buffer.prototype.copy = function copy (target, targetStart, start, end) {
 
   if (this === target && start < targetStart && targetStart < end) {
     // descending copy from end
-    for (i = len - 1; i >= 0; i--) {
+    for (i = len - 1; i >= 0; --i) {
       target[i + targetStart] = this[i + start]
     }
   } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
     // ascending copy from start
-    for (i = 0; i < len; i++) {
+    for (i = 0; i < len; ++i) {
       target[i + targetStart] = this[i + start]
     }
   } else {
-    target._set(this.subarray(start, start + len), targetStart)
+    Uint8Array.prototype.set.call(
+      target,
+      this.subarray(start, start + len),
+      targetStart
+    )
   }
 
   return len
 }
 
-// fill(value, start=0, end=buffer.length)
-Buffer.prototype.fill = function fill (value, start, end) {
-  if (!value) value = 0
-  if (!start) start = 0
-  if (!end) end = this.length
+// Usage:
+//    buffer.fill(number[, offset[, end]])
+//    buffer.fill(buffer[, offset[, end]])
+//    buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+  // Handle string cases:
+  if (typeof val === 'string') {
+    if (typeof start === 'string') {
+      encoding = start
+      start = 0
+      end = this.length
+    } else if (typeof end === 'string') {
+      encoding = end
+      end = this.length
+    }
+    if (val.length === 1) {
+      var code = val.charCodeAt(0)
+      if (code < 256) {
+        val = code
+      }
+    }
+    if (encoding !== undefined && typeof encoding !== 'string') {
+      throw new TypeError('encoding must be a string')
+    }
+    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+      throw new TypeError('Unknown encoding: ' + encoding)
+    }
+  } else if (typeof val === 'number') {
+    val = val & 255
+  }
 
-  if (end < start) throw new RangeError('end < start')
+  // Invalid ranges are not set to a default, so can range check early.
+  if (start < 0 || this.length < start || this.length < end) {
+    throw new RangeError('Out of range index')
+  }
+
+  if (end <= start) {
+    return this
+  }
 
-  // Fill 0 bytes; we're done
-  if (end === start) return
-  if (this.length === 0) return
+  start = start >>> 0
+  end = end === undefined ? this.length : end >>> 0
 
-  if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
-  if (end < 0 || end > this.length) throw new RangeError('end out of bounds')
+  if (!val) val = 0
 
   var i
-  if (typeof value === 'number') {
-    for (i = start; i < end; i++) {
-      this[i] = value
+  if (typeof val === 'number') {
+    for (i = start; i < end; ++i) {
+      this[i] = val
     }
   } else {
-    var bytes = utf8ToBytes(value.toString())
+    var bytes = Buffer.isBuffer(val)
+      ? val
+      : utf8ToBytes(new Buffer(val, encoding).toString())
     var len = bytes.length
-    for (i = start; i < end; i++) {
-      this[i] = bytes[i % len]
+    for (i = 0; i < end - start; ++i) {
+      this[i + start] = bytes[i % len]
     }
   }
 
   return this
 }
 
-/**
- * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
- * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
- */
-Buffer.prototype.toArrayBuffer = function toArrayBuffer () {
-  if (typeof Uint8Array !== 'undefined') {
-    if (Buffer.TYPED_ARRAY_SUPPORT) {
-      return (new Buffer(this)).buffer
-    } else {
-      var buf = new Uint8Array(this.length)
-      for (var i = 0, len = buf.length; i < len; i += 1) {
-        buf[i] = this[i]
-      }
-      return buf.buffer
-    }
-  } else {
-    throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
-  }
-}
-
 // HELPER FUNCTIONS
 // ================
 
-var BP = Buffer.prototype
-
-/**
- * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
- */
-Buffer._augment = function _augment (arr) {
-  arr.constructor = Buffer
-  arr._isBuffer = true
-
-  // save reference to original Uint8Array set method before overwriting
-  arr._set = arr.set
-
-  // deprecated
-  arr.get = BP.get
-  arr.set = BP.set
-
-  arr.write = BP.write
-  arr.toString = BP.toString
-  arr.toLocaleString = BP.toString
-  arr.toJSON = BP.toJSON
-  arr.equals = BP.equals
-  arr.compare = BP.compare
-  arr.indexOf = BP.indexOf
-  arr.copy = BP.copy
-  arr.slice = BP.slice
-  arr.readUIntLE = BP.readUIntLE
-  arr.readUIntBE = BP.readUIntBE
-  arr.readUInt8 = BP.readUInt8
-  arr.readUInt16LE = BP.readUInt16LE
-  arr.readUInt16BE = BP.readUInt16BE
-  arr.readUInt32LE = BP.readUInt32LE
-  arr.readUInt32BE = BP.readUInt32BE
-  arr.readIntLE = BP.readIntLE
-  arr.readIntBE = BP.readIntBE
-  arr.readInt8 = BP.readInt8
-  arr.readInt16LE = BP.readInt16LE
-  arr.readInt16BE = BP.readInt16BE
-  arr.readInt32LE = BP.readInt32LE
-  arr.readInt32BE = BP.readInt32BE
-  arr.readFloatLE = BP.readFloatLE
-  arr.readFloatBE = BP.readFloatBE
-  arr.readDoubleLE = BP.readDoubleLE
-  arr.readDoubleBE = BP.readDoubleBE
-  arr.writeUInt8 = BP.writeUInt8
-  arr.writeUIntLE = BP.writeUIntLE
-  arr.writeUIntBE = BP.writeUIntBE
-  arr.writeUInt16LE = BP.writeUInt16LE
-  arr.writeUInt16BE = BP.writeUInt16BE
-  arr.writeUInt32LE = BP.writeUInt32LE
-  arr.writeUInt32BE = BP.writeUInt32BE
-  arr.writeIntLE = BP.writeIntLE
-  arr.writeIntBE = BP.writeIntBE
-  arr.writeInt8 = BP.writeInt8
-  arr.writeInt16LE = BP.writeInt16LE
-  arr.writeInt16BE = BP.writeInt16BE
-  arr.writeInt32LE = BP.writeInt32LE
-  arr.writeInt32BE = BP.writeInt32BE
-  arr.writeFloatLE = BP.writeFloatLE
-  arr.writeFloatBE = BP.writeFloatBE
-  arr.writeDoubleLE = BP.writeDoubleLE
-  arr.writeDoubleBE = BP.writeDoubleBE
-  arr.fill = BP.fill
-  arr.inspect = BP.inspect
-  arr.toArrayBuffer = BP.toArrayBuffer
-
-  return arr
-}
-
 var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
 
 function base64clean (str) {
@@ -7679,7 +8605,7 @@ function utf8ToBytes (string, units) {
   var leadSurrogate = null
   var bytes = []
 
-  for (var i = 0; i < length; i++) {
+  for (var i = 0; i < length; ++i) {
     codePoint = string.charCodeAt(i)
 
     // is surrogate component
@@ -7711,7 +8637,7 @@ function utf8ToBytes (string, units) {
       }
 
       // valid surrogate pair
-      codePoint = leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00 | 0x10000
+      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
     } else if (leadSurrogate) {
       // valid bmp char, but last char was a lead
       if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
@@ -7754,7 +8680,7 @@ function utf8ToBytes (string, units) {
 
 function asciiToBytes (str) {
   var byteArray = []
-  for (var i = 0; i < str.length; i++) {
+  for (var i = 0; i < str.length; ++i) {
     // Node's code seems to be doing this and not & 0x7F..
     byteArray.push(str.charCodeAt(i) & 0xFF)
   }
@@ -7764,7 +8690,7 @@ function asciiToBytes (str) {
 function utf16leToBytes (str, units) {
   var c, hi, lo
   var byteArray = []
-  for (var i = 0; i < str.length; i++) {
+  for (var i = 0; i < str.length; ++i) {
     if ((units -= 2) < 0) break
 
     c = str.charCodeAt(i)
@@ -7782,830 +8708,764 @@ function base64ToBytes (str) {
 }
 
 function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; i++) {
+  for (var i = 0; i < length; ++i) {
     if ((i + offset >= dst.length) || (i >= src.length)) break
     dst[i + offset] = src[i]
   }
   return i
 }
 
-},{"base64-js":44,"ieee754":45,"is-array":46}],44:[function(require,module,exports){
-var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
-;(function (exports) {
-	'use strict';
-
-  var Arr = (typeof Uint8Array !== 'undefined')
-    ? Uint8Array
-    : Array
-
-	var PLUS   = '+'.charCodeAt(0)
-	var SLASH  = '/'.charCodeAt(0)
-	var NUMBER = '0'.charCodeAt(0)
-	var LOWER  = 'a'.charCodeAt(0)
-	var UPPER  = 'A'.charCodeAt(0)
-	var PLUS_URL_SAFE = '-'.charCodeAt(0)
-	var SLASH_URL_SAFE = '_'.charCodeAt(0)
-
-	function decode (elt) {
-		var code = elt.charCodeAt(0)
-		if (code === PLUS ||
-		    code === PLUS_URL_SAFE)
-			return 62 // '+'
-		if (code === SLASH ||
-		    code === SLASH_URL_SAFE)
-			return 63 // '/'
-		if (code < NUMBER)
-			return -1 //no match
-		if (code < NUMBER + 10)
-			return code - NUMBER + 26 + 26
-		if (code < UPPER + 26)
-			return code - UPPER
-		if (code < LOWER + 26)
-			return code - LOWER + 26
-	}
-
-	function b64ToByteArray (b64) {
-		var i, j, l, tmp, placeHolders, arr
-
-		if (b64.length % 4 > 0) {
-			throw new Error('Invalid string. Length must be a multiple of 4')
-		}
-
-		// the number of equal signs (place holders)
-		// if there are two placeholders, than the two characters before it
-		// represent one byte
-		// if there is only one, then the three characters before it represent 2 bytes
-		// this is just a cheap hack to not do indexOf twice
-		var len = b64.length
-		placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
-
-		// base64 is 4/3 + up to two characters of the original data
-		arr = new Arr(b64.length * 3 / 4 - placeHolders)
-
-		// if there are placeholders, only get up to the last complete 4 chars
-		l = placeHolders > 0 ? b64.length - 4 : b64.length
-
-		var L = 0
-
-		function push (v) {
-			arr[L++] = v
-		}
-
-		for (i = 0, j = 0; i < l; i += 4, j += 3) {
-			tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
-			push((tmp & 0xFF0000) >> 16)
-			push((tmp & 0xFF00) >> 8)
-			push(tmp & 0xFF)
-		}
-
-		if (placeHolders === 2) {
-			tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
-			push(tmp & 0xFF)
-		} else if (placeHolders === 1) {
-			tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
-			push((tmp >> 8) & 0xFF)
-			push(tmp & 0xFF)
-		}
-
-		return arr
-	}
+function isnan (val) {
+  return val !== val // eslint-disable-line no-self-compare
+}
 
-	function uint8ToBase64 (uint8) {
-		var i,
-			extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
-			output = "",
-			temp, length
-
-		function encode (num) {
-			return lookup.charAt(num)
-		}
-
-		function tripletToBase64 (num) {
-			return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
-		}
-
-		// go through the array every three bytes, we'll deal with trailing stuff later
-		for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
-			temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
-			output += tripletToBase64(temp)
-		}
-
-		// pad the end with zeros, but make sure to not forget the extra bytes
-		switch (extraBytes) {
-			case 1:
-				temp = uint8[uint8.length - 1]
-				output += encode(temp >> 2)
-				output += encode((temp << 4) & 0x3F)
-				output += '=='
-				break
-			case 2:
-				temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
-				output += encode(temp >> 10)
-				output += encode((temp >> 4) & 0x3F)
-				output += encode((temp << 2) & 0x3F)
-				output += '='
-				break
-		}
-
-		return output
-	}
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"base64-js":39,"ieee754":50,"isarray":53}],45:[function(require,module,exports){
+(function (Buffer){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-	exports.toByteArray = b64ToByteArray
-	exports.fromByteArray = uint8ToBase64
-}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
 
-},{}],45:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
-  var e, m
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var nBits = -7
-  var i = isLE ? (nBytes - 1) : 0
-  var d = isLE ? -1 : 1
-  var s = buffer[offset + i]
+function isArray(arg) {
+  if (Array.isArray) {
+    return Array.isArray(arg);
+  }
+  return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
 
-  i += d
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
 
-  e = s & ((1 << (-nBits)) - 1)
-  s >>= (-nBits)
-  nBits += eLen
-  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
 
-  m = e & ((1 << (-nBits)) - 1)
-  e >>= (-nBits)
-  nBits += mLen
-  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
 
-  if (e === 0) {
-    e = 1 - eBias
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity)
-  } else {
-    m = m + Math.pow(2, mLen)
-    e = e - eBias
-  }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+function isNumber(arg) {
+  return typeof arg === 'number';
 }
+exports.isNumber = isNumber;
 
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
-  var e, m, c
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
-  var i = isLE ? 0 : (nBytes - 1)
-  var d = isLE ? 1 : -1
-  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
 
-  value = Math.abs(value)
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
 
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0
-    e = eMax
-  } else {
-    e = Math.floor(Math.log(value) / Math.LN2)
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--
-      c *= 2
-    }
-    if (e + eBias >= 1) {
-      value += rt / c
-    } else {
-      value += rt * Math.pow(2, 1 - eBias)
-    }
-    if (value * c >= 2) {
-      e++
-      c /= 2
-    }
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
 
-    if (e + eBias >= eMax) {
-      m = 0
-      e = eMax
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * Math.pow(2, mLen)
-      e = e + eBias
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
-      e = 0
-    }
-  }
+function isRegExp(re) {
+  return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
 
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
 
-  e = (e << mLen) | m
-  eLen += mLen
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+function isDate(d) {
+  return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
 
-  buffer[offset + i - d] |= s * 128
+function isError(e) {
+  return (objectToString(e) === '[object Error]' || e instanceof Error);
 }
+exports.isError = isError;
 
-},{}],46:[function(require,module,exports){
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
 
-/**
- * isArray
- */
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
 
-var isArray = Array.isArray;
+exports.isBuffer = Buffer.isBuffer;
 
-/**
- * toString
- */
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
 
-var str = Object.prototype.toString;
+}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
+},{"../../is-buffer/index.js":52}],46:[function(require,module,exports){
+/* See LICENSE file for terms of use */
 
-/**
- * Whether or not the given `val`
- * is an array.
+/*
+ * Text diff implementation.
  *
- * example:
+ * This library supports the following APIS:
+ * JsDiff.diffChars: Character by character diff
+ * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
+ * JsDiff.diffLines: Line based diff
  *
- *        isArray([]);
- *        // > true
- *        isArray(arguments);
- *        // > false
- *        isArray('');
- *        // > false
+ * JsDiff.diffCss: Diff targeted at CSS content
  *
- * @param {mixed} val
- * @return {bool}
+ * These methods are based on the implementation proposed in
+ * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
+ * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
  */
+(function(global, undefined) {
+  var objectPrototypeToString = Object.prototype.toString;
 
-module.exports = isArray || function (val) {
-  return !! val && '[object Array]' == str.call(val);
-};
-
-},{}],47:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  /*istanbul ignore next*/
+  function map(arr, mapper, that) {
+    if (Array.prototype.map) {
+      return Array.prototype.map.call(arr, mapper, that);
+    }
 
-function EventEmitter() {
-  this._events = this._events || {};
-  this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
+    var other = new Array(arr.length);
 
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
+    for (var i = 0, n = arr.length; i < n; i++) {
+      other[i] = mapper.call(that, arr[i], i, arr);
+    }
+    return other;
+  }
+  function clonePath(path) {
+    return { newPos: path.newPos, components: path.components.slice(0) };
+  }
+  function removeEmpty(array) {
+    var ret = [];
+    for (var i = 0; i < array.length; i++) {
+      if (array[i]) {
+        ret.push(array[i]);
+      }
+    }
+    return ret;
+  }
+  function escapeHTML(s) {
+    var n = s;
+    n = n.replace(/&/g, '&amp;');
+    n = n.replace(/</g, '&lt;');
+    n = n.replace(/>/g, '&gt;');
+    n = n.replace(/"/g, '&quot;');
 
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
+    return n;
+  }
 
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-EventEmitter.defaultMaxListeners = 10;
+  // This function handles the presence of circular references by bailing out when encountering an
+  // object that is already on the "stack" of items being processed.
+  function canonicalize(obj, stack, replacementStack) {
+    stack = stack || [];
+    replacementStack = replacementStack || [];
 
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function(n) {
-  if (!isNumber(n) || n < 0 || isNaN(n))
-    throw TypeError('n must be a positive number');
-  this._maxListeners = n;
-  return this;
-};
+    var i;
 
-EventEmitter.prototype.emit = function(type) {
-  var er, handler, len, args, i, listeners;
+    for (i = 0; i < stack.length; i += 1) {
+      if (stack[i] === obj) {
+        return replacementStack[i];
+      }
+    }
 
-  if (!this._events)
-    this._events = {};
+    var canonicalizedObj;
 
-  // If there is no 'error' event listener then throw.
-  if (type === 'error') {
-    if (!this._events.error ||
-        (isObject(this._events.error) && !this._events.error.length)) {
-      er = arguments[1];
-      if (er instanceof Error) {
-        throw er; // Unhandled 'error' event
+    if ('[object Array]' === objectPrototypeToString.call(obj)) {
+      stack.push(obj);
+      canonicalizedObj = new Array(obj.length);
+      replacementStack.push(canonicalizedObj);
+      for (i = 0; i < obj.length; i += 1) {
+        canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack);
+      }
+      stack.pop();
+      replacementStack.pop();
+    } else if (typeof obj === 'object' && obj !== null) {
+      stack.push(obj);
+      canonicalizedObj = {};
+      replacementStack.push(canonicalizedObj);
+      var sortedKeys = [],
+          key;
+      for (key in obj) {
+        sortedKeys.push(key);
+      }
+      sortedKeys.sort();
+      for (i = 0; i < sortedKeys.length; i += 1) {
+        key = sortedKeys[i];
+        canonicalizedObj[key] = canonicalize(obj[key], stack, replacementStack);
       }
-      throw TypeError('Uncaught, unspecified "error" event.');
+      stack.pop();
+      replacementStack.pop();
+    } else {
+      canonicalizedObj = obj;
     }
+    return canonicalizedObj;
   }
 
-  handler = this._events[type];
-
-  if (isUndefined(handler))
-    return false;
-
-  if (isFunction(handler)) {
-    switch (arguments.length) {
-      // fast cases
-      case 1:
-        handler.call(this);
-        break;
-      case 2:
-        handler.call(this, arguments[1]);
-        break;
-      case 3:
-        handler.call(this, arguments[1], arguments[2]);
-        break;
-      // slower
-      default:
-        len = arguments.length;
-        args = new Array(len - 1);
-        for (i = 1; i < len; i++)
-          args[i - 1] = arguments[i];
-        handler.apply(this, args);
-    }
-  } else if (isObject(handler)) {
-    len = arguments.length;
-    args = new Array(len - 1);
-    for (i = 1; i < len; i++)
-      args[i - 1] = arguments[i];
-
-    listeners = handler.slice();
-    len = listeners.length;
-    for (i = 0; i < len; i++)
-      listeners[i].apply(this, args);
-  }
-
-  return true;
-};
-
-EventEmitter.prototype.addListener = function(type, listener) {
-  var m;
-
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
-
-  if (!this._events)
-    this._events = {};
+  function buildValues(components, newString, oldString, useLongestToken) {
+    var componentPos = 0,
+        componentLen = components.length,
+        newPos = 0,
+        oldPos = 0;
 
-  // To avoid recursion in the case that type === "newListener"! Before
-  // adding it to the listeners, first emit "newListener".
-  if (this._events.newListener)
-    this.emit('newListener', type,
-              isFunction(listener.listener) ?
-              listener.listener : listener);
+    for (; componentPos < componentLen; componentPos++) {
+      var component = components[componentPos];
+      if (!component.removed) {
+        if (!component.added && useLongestToken) {
+          var value = newString.slice(newPos, newPos + component.count);
+          value = map(value, function(value, i) {
+            var oldValue = oldString[oldPos + i];
+            return oldValue.length > value.length ? oldValue : value;
+          });
 
-  if (!this._events[type])
-    // Optimize the case of one listener. Don't need the extra array object.
-    this._events[type] = listener;
-  else if (isObject(this._events[type]))
-    // If we've already got an array, just append.
-    this._events[type].push(listener);
-  else
-    // Adding the second element, need to change to array.
-    this._events[type] = [this._events[type], listener];
+          component.value = value.join('');
+        } else {
+          component.value = newString.slice(newPos, newPos + component.count).join('');
+        }
+        newPos += component.count;
 
-  // Check for listener leak
-  if (isObject(this._events[type]) && !this._events[type].warned) {
-    var m;
-    if (!isUndefined(this._maxListeners)) {
-      m = this._maxListeners;
-    } else {
-      m = EventEmitter.defaultMaxListeners;
-    }
+        // Common case
+        if (!component.added) {
+          oldPos += component.count;
+        }
+      } else {
+        component.value = oldString.slice(oldPos, oldPos + component.count).join('');
+        oldPos += component.count;
 
-    if (m && m > 0 && this._events[type].length > m) {
-      this._events[type].warned = true;
-      console.error('(node) warning: possible EventEmitter memory ' +
-                    'leak detected. %d listeners added. ' +
-                    'Use emitter.setMaxListeners() to increase limit.',
-                    this._events[type].length);
-      if (typeof console.trace === 'function') {
-        // not supported in IE 10
-        console.trace();
+        // Reverse add and remove so removes are output first to match common convention
+        // The diffing algorithm is tied to add then remove output and this is the simplest
+        // route to get the desired output with minimal overhead.
+        if (componentPos && components[componentPos - 1].added) {
+          var tmp = components[componentPos - 1];
+          components[componentPos - 1] = components[componentPos];
+          components[componentPos] = tmp;
+        }
       }
     }
-  }
-
-  return this;
-};
 
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+    return components;
+  }
 
-EventEmitter.prototype.once = function(type, listener) {
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+  function Diff(ignoreWhitespace) {
+    this.ignoreWhitespace = ignoreWhitespace;
+  }
+  Diff.prototype = {
+    diff: function(oldString, newString, callback) {
+      var self = this;
 
-  var fired = false;
+      function done(value) {
+        if (callback) {
+          setTimeout(function() { callback(undefined, value); }, 0);
+          return true;
+        } else {
+          return value;
+        }
+      }
 
-  function g() {
-    this.removeListener(type, g);
+      // Handle the identity case (this is due to unrolling editLength == 0
+      if (newString === oldString) {
+        return done([{ value: newString }]);
+      }
+      if (!newString) {
+        return done([{ value: oldString, removed: true }]);
+      }
+      if (!oldString) {
+        return done([{ value: newString, added: true }]);
+      }
 
-    if (!fired) {
-      fired = true;
-      listener.apply(this, arguments);
-    }
-  }
+      newString = this.tokenize(newString);
+      oldString = this.tokenize(oldString);
 
-  g.listener = listener;
-  this.on(type, g);
+      var newLen = newString.length, oldLen = oldString.length;
+      var editLength = 1;
+      var maxEditLength = newLen + oldLen;
+      var bestPath = [{ newPos: -1, components: [] }];
 
-  return this;
-};
+      // Seed editLength = 0, i.e. the content starts with the same values
+      var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
+      if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
+        // Identity per the equality and tokenizer
+        return done([{value: newString.join('')}]);
+      }
 
-// emits a 'removeListener' event iff the listener was removed
-EventEmitter.prototype.removeListener = function(type, listener) {
-  var list, position, length, i;
+      // Main worker method. checks all permutations of a given edit length for acceptance.
+      function execEditLength() {
+        for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
+          var basePath;
+          var addPath = bestPath[diagonalPath - 1],
+              removePath = bestPath[diagonalPath + 1],
+              oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
+          if (addPath) {
+            // No one else is going to attempt to use this value, clear it
+            bestPath[diagonalPath - 1] = undefined;
+          }
 
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+          var canAdd = addPath && addPath.newPos + 1 < newLen,
+              canRemove = removePath && 0 <= oldPos && oldPos < oldLen;
+          if (!canAdd && !canRemove) {
+            // If this path is a terminal then prune
+            bestPath[diagonalPath] = undefined;
+            continue;
+          }
 
-  if (!this._events || !this._events[type])
-    return this;
+          // Select the diagonal that we want to branch from. We select the prior
+          // path whose position in the new string is the farthest from the origin
+          // and does not pass the bounds of the diff graph
+          if (!canAdd || (canRemove && addPath.newPos < removePath.newPos)) {
+            basePath = clonePath(removePath);
+            self.pushComponent(basePath.components, undefined, true);
+          } else {
+            basePath = addPath;   // No need to clone, we've pulled it from the list
+            basePath.newPos++;
+            self.pushComponent(basePath.components, true, undefined);
+          }
 
-  list = this._events[type];
-  length = list.length;
-  position = -1;
+          oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);
 
-  if (list === listener ||
-      (isFunction(list.listener) && list.listener === listener)) {
-    delete this._events[type];
-    if (this._events.removeListener)
-      this.emit('removeListener', type, listener);
+          // If we have hit the end of both strings, then we are done
+          if (basePath.newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
+            return done(buildValues(basePath.components, newString, oldString, self.useLongestToken));
+          } else {
+            // Otherwise track this path as a potential candidate and continue.
+            bestPath[diagonalPath] = basePath;
+          }
+        }
 
-  } else if (isObject(list)) {
-    for (i = length; i-- > 0;) {
-      if (list[i] === listener ||
-          (list[i].listener && list[i].listener === listener)) {
-        position = i;
-        break;
+        editLength++;
       }
-    }
 
-    if (position < 0)
-      return this;
+      // Performs the length of edit iteration. Is a bit fugly as this has to support the
+      // sync and async mode which is never fun. Loops over execEditLength until a value
+      // is produced.
+      if (callback) {
+        (function exec() {
+          setTimeout(function() {
+            // This should not happen, but we want to be safe.
+            /*istanbul ignore next */
+            if (editLength > maxEditLength) {
+              return callback();
+            }
 
-    if (list.length === 1) {
-      list.length = 0;
-      delete this._events[type];
-    } else {
-      list.splice(position, 1);
-    }
+            if (!execEditLength()) {
+              exec();
+            }
+          }, 0);
+        }());
+      } else {
+        while (editLength <= maxEditLength) {
+          var ret = execEditLength();
+          if (ret) {
+            return ret;
+          }
+        }
+      }
+    },
 
-    if (this._events.removeListener)
-      this.emit('removeListener', type, listener);
-  }
-
-  return this;
-};
+    pushComponent: function(components, added, removed) {
+      var last = components[components.length - 1];
+      if (last && last.added === added && last.removed === removed) {
+        // We need to clone here as the component clone operation is just
+        // as shallow array clone
+        components[components.length - 1] = {count: last.count + 1, added: added, removed: removed };
+      } else {
+        components.push({count: 1, added: added, removed: removed });
+      }
+    },
+    extractCommon: function(basePath, newString, oldString, diagonalPath) {
+      var newLen = newString.length,
+          oldLen = oldString.length,
+          newPos = basePath.newPos,
+          oldPos = newPos - diagonalPath,
 
-EventEmitter.prototype.removeAllListeners = function(type) {
-  var key, listeners;
+          commonCount = 0;
+      while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
+        newPos++;
+        oldPos++;
+        commonCount++;
+      }
 
-  if (!this._events)
-    return this;
+      if (commonCount) {
+        basePath.components.push({count: commonCount});
+      }
 
-  // not listening for removeListener, no need to emit
-  if (!this._events.removeListener) {
-    if (arguments.length === 0)
-      this._events = {};
-    else if (this._events[type])
-      delete this._events[type];
-    return this;
-  }
+      basePath.newPos = newPos;
+      return oldPos;
+    },
 
-  // emit removeListener for all listeners on all events
-  if (arguments.length === 0) {
-    for (key in this._events) {
-      if (key === 'removeListener') continue;
-      this.removeAllListeners(key);
+    equals: function(left, right) {
+      var reWhitespace = /\S/;
+      return left === right || (this.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right));
+    },
+    tokenize: function(value) {
+      return value.split('');
     }
-    this.removeAllListeners('removeListener');
-    this._events = {};
-    return this;
-  }
-
-  listeners = this._events[type];
-
-  if (isFunction(listeners)) {
-    this.removeListener(type, listeners);
-  } else {
-    // LIFO order
-    while (listeners.length)
-      this.removeListener(type, listeners[listeners.length - 1]);
-  }
-  delete this._events[type];
-
-  return this;
-};
+  };
 
-EventEmitter.prototype.listeners = function(type) {
-  var ret;
-  if (!this._events || !this._events[type])
-    ret = [];
-  else if (isFunction(this._events[type]))
-    ret = [this._events[type]];
-  else
-    ret = this._events[type].slice();
-  return ret;
-};
+  var CharDiff = new Diff();
 
-EventEmitter.listenerCount = function(emitter, type) {
-  var ret;
-  if (!emitter._events || !emitter._events[type])
-    ret = 0;
-  else if (isFunction(emitter._events[type]))
-    ret = 1;
-  else
-    ret = emitter._events[type].length;
-  return ret;
-};
+  var WordDiff = new Diff(true);
+  var WordWithSpaceDiff = new Diff();
+  WordDiff.tokenize = WordWithSpaceDiff.tokenize = function(value) {
+    return removeEmpty(value.split(/(\s+|\b)/));
+  };
 
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
+  var CssDiff = new Diff(true);
+  CssDiff.tokenize = function(value) {
+    return removeEmpty(value.split(/([{}:;,]|\s+)/));
+  };
 
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
+  var LineDiff = new Diff();
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
+  var TrimmedLineDiff = new Diff();
+  TrimmedLineDiff.ignoreTrim = true;
 
-function isUndefined(arg) {
-  return arg === void 0;
-}
+  LineDiff.tokenize = TrimmedLineDiff.tokenize = function(value) {
+    var retLines = [],
+        lines = value.split(/^/m);
+    for (var i = 0; i < lines.length; i++) {
+      var line = lines[i],
+          lastLine = lines[i - 1],
+          lastLineLastChar = lastLine && lastLine[lastLine.length - 1];
 
-},{}],48:[function(require,module,exports){
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
+      // Merge lines that may contain windows new lines
+      if (line === '\n' && lastLineLastChar === '\r') {
+          retLines[retLines.length - 1] = retLines[retLines.length - 1].slice(0, -1) + '\r\n';
+      } else {
+        if (this.ignoreTrim) {
+          line = line.trim();
+          // add a newline unless this is the last line.
+          if (i < lines.length - 1) {
+            line += '\n';
+          }
+        }
+        retLines.push(line);
       }
-    });
-  };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
-  }
-}
+    }
 
-},{}],49:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
-  return Object.prototype.toString.call(arr) == '[object Array]';
-};
+    return retLines;
+  };
 
-},{}],50:[function(require,module,exports){
-exports.endianness = function () { return 'LE' };
+  var PatchDiff = new Diff();
+  PatchDiff.tokenize = function(value) {
+    var ret = [],
+        linesAndNewlines = value.split(/(\n|\r\n)/);
 
-exports.hostname = function () {
-    if (typeof location !== 'undefined') {
-        return location.hostname
+    // Ignore the final empty token that occurs if the string ends with a new line
+    if (!linesAndNewlines[linesAndNewlines.length - 1]) {
+      linesAndNewlines.pop();
     }
-    else return '';
-};
 
-exports.loadavg = function () { return [] };
+    // Merge the content and line separators into single tokens
+    for (var i = 0; i < linesAndNewlines.length; i++) {
+      var line = linesAndNewlines[i];
 
-exports.uptime = function () { return 0 };
+      if (i % 2) {
+        ret[ret.length - 1] += line;
+      } else {
+        ret.push(line);
+      }
+    }
+    return ret;
+  };
 
-exports.freemem = function () {
-    return Number.MAX_VALUE;
-};
+  var SentenceDiff = new Diff();
+  SentenceDiff.tokenize = function(value) {
+    return removeEmpty(value.split(/(\S.+?[.!?])(?=\s+|$)/));
+  };
 
-exports.totalmem = function () {
-    return Number.MAX_VALUE;
-};
+  var JsonDiff = new Diff();
+  // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
+  // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
+  JsonDiff.useLongestToken = true;
+  JsonDiff.tokenize = LineDiff.tokenize;
+  JsonDiff.equals = function(left, right) {
+    return LineDiff.equals(left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
+  };
 
-exports.cpus = function () { return [] };
+  var JsDiff = {
+    Diff: Diff,
 
-exports.type = function () { return 'Browser' };
+    diffChars: function(oldStr, newStr, callback) { return CharDiff.diff(oldStr, newStr, callback); },
+    diffWords: function(oldStr, newStr, callback) { return WordDiff.diff(oldStr, newStr, callback); },
+    diffWordsWithSpace: function(oldStr, newStr, callback) { return WordWithSpaceDiff.diff(oldStr, newStr, callback); },
+    diffLines: function(oldStr, newStr, callback) { return LineDiff.diff(oldStr, newStr, callback); },
+    diffTrimmedLines: function(oldStr, newStr, callback) { return TrimmedLineDiff.diff(oldStr, newStr, callback); },
 
-exports.release = function () {
-    if (typeof navigator !== 'undefined') {
-        return navigator.appVersion;
-    }
-    return '';
-};
+    diffSentences: function(oldStr, newStr, callback) { return SentenceDiff.diff(oldStr, newStr, callback); },
 
-exports.networkInterfaces
-= exports.getNetworkInterfaces
-= function () { return {} };
+    diffCss: function(oldStr, newStr, callback) { return CssDiff.diff(oldStr, newStr, callback); },
+    diffJson: function(oldObj, newObj, callback) {
+      return JsonDiff.diff(
+        typeof oldObj === 'string' ? oldObj : JSON.stringify(canonicalize(oldObj), undefined, '  '),
+        typeof newObj === 'string' ? newObj : JSON.stringify(canonicalize(newObj), undefined, '  '),
+        callback
+      );
+    },
 
-exports.arch = function () { return 'javascript' };
+    createTwoFilesPatch: function(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader) {
+      var ret = [];
 
-exports.platform = function () { return 'browser' };
+      if (oldFileName == newFileName) {
+        ret.push('Index: ' + oldFileName);
+      }
+      ret.push('===================================================================');
+      ret.push('--- ' + oldFileName + (typeof oldHeader === 'undefined' ? '' : '\t' + oldHeader));
+      ret.push('+++ ' + newFileName + (typeof newHeader === 'undefined' ? '' : '\t' + newHeader));
 
-exports.tmpdir = exports.tmpDir = function () {
-    return '/tmp';
-};
+      var diff = PatchDiff.diff(oldStr, newStr);
+      diff.push({value: '', lines: []});   // Append an empty value to make cleanup easier
 
-exports.EOL = '\n';
+      // Formats a given set of lines for printing as context lines in a patch
+      function contextLines(lines) {
+        return map(lines, function(entry) { return ' ' + entry; });
+      }
 
-},{}],51:[function(require,module,exports){
-// shim for using process in browser
+      // Outputs the no newline at end of file warning if needed
+      function eofNL(curRange, i, current) {
+        var last = diff[diff.length - 2],
+            isLast = i === diff.length - 2,
+            isLastOfType = i === diff.length - 3 && current.added !== last.added;
 
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
+        // Figure out if this is the last line for the given file and missing NL
+        if (!(/\n$/.test(current.value)) && (isLast || isLastOfType)) {
+          curRange.push('\\ No newline at end of file');
+        }
+      }
 
-function cleanUpNextTick() {
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
-    }
-}
+      var oldRangeStart = 0, newRangeStart = 0, curRange = [],
+          oldLine = 1, newLine = 1;
+      for (var i = 0; i < diff.length; i++) {
+        var current = diff[i],
+            lines = current.lines || current.value.replace(/\n$/, '').split('\n');
+        current.lines = lines;
 
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    var timeout = setTimeout(cleanUpNextTick);
-    draining = true;
+        if (current.added || current.removed) {
+          // If we have previous context, start with that
+          if (!oldRangeStart) {
+            var prev = diff[i - 1];
+            oldRangeStart = oldLine;
+            newRangeStart = newLine;
 
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            if (currentQueue) {
-                currentQueue[queueIndex].run();
+            if (prev) {
+              curRange = contextLines(prev.lines.slice(-4));
+              oldRangeStart -= curRange.length;
+              newRangeStart -= curRange.length;
             }
-        }
-        queueIndex = -1;
-        len = queue.length;
-    }
-    currentQueue = null;
-    draining = false;
-    clearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
-    }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        setTimeout(drainQueue, 0);
-    }
-};
+          }
 
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
+          // Output our changes
+          curRange.push.apply(curRange, map(lines, function(entry) {
+            return (current.added ? '+' : '-') + entry;
+          }));
+          eofNL(curRange, i, current);
 
-function noop() {}
+          // Track the updated file position
+          if (current.added) {
+            newLine += lines.length;
+          } else {
+            oldLine += lines.length;
+          }
+        } else {
+          // Identical context lines. Track line changes
+          if (oldRangeStart) {
+            // Close out any changes that have been output (or join overlapping)
+            if (lines.length <= 8 && i < diff.length - 2) {
+              // Overlapping
+              curRange.push.apply(curRange, contextLines(lines));
+            } else {
+              // end the range and output
+              var contextSize = Math.min(lines.length, 4);
+              ret.push(
+                  '@@ -' + oldRangeStart + ',' + (oldLine - oldRangeStart + contextSize)
+                  + ' +' + newRangeStart + ',' + (newLine - newRangeStart + contextSize)
+                  + ' @@');
+              ret.push.apply(ret, curRange);
+              ret.push.apply(ret, contextLines(lines.slice(0, contextSize)));
+              if (lines.length <= 4) {
+                eofNL(ret, i, current);
+              }
 
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
+              oldRangeStart = 0;
+              newRangeStart = 0;
+              curRange = [];
+            }
+          }
+          oldLine += lines.length;
+          newLine += lines.length;
+        }
+      }
 
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
+      return ret.join('\n') + '\n';
+    },
 
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
+    createPatch: function(fileName, oldStr, newStr, oldHeader, newHeader) {
+      return JsDiff.createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader);
+    },
 
-},{}],52:[function(require,module,exports){
-module.exports = require("./lib/_stream_duplex.js")
+    applyPatch: function(oldStr, uniDiff) {
+      var diffstr = uniDiff.split('\n'),
+          hunks = [],
+          i = 0,
+          remEOFNL = false,
+          addEOFNL = false;
 
-},{"./lib/_stream_duplex.js":53}],53:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+      // Skip to the first change hunk
+      while (i < diffstr.length && !(/^@@/.test(diffstr[i]))) {
+        i++;
+      }
 
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
+      // Parse the unified diff
+      for (; i < diffstr.length; i++) {
+        if (diffstr[i][0] === '@') {
+          var chnukHeader = diffstr[i].split(/@@ -(\d+),(\d+) \+(\d+),(\d+) @@/);
+          hunks.unshift({
+            start: chnukHeader[3],
+            oldlength: +chnukHeader[2],
+            removed: [],
+            newlength: chnukHeader[4],
+            added: []
+          });
+        } else if (diffstr[i][0] === '+') {
+          hunks[0].added.push(diffstr[i].substr(1));
+        } else if (diffstr[i][0] === '-') {
+          hunks[0].removed.push(diffstr[i].substr(1));
+        } else if (diffstr[i][0] === ' ') {
+          hunks[0].added.push(diffstr[i].substr(1));
+          hunks[0].removed.push(diffstr[i].substr(1));
+        } else if (diffstr[i][0] === '\\') {
+          if (diffstr[i - 1][0] === '+') {
+            remEOFNL = true;
+          } else if (diffstr[i - 1][0] === '-') {
+            addEOFNL = true;
+          }
+        }
+      }
 
-module.exports = Duplex;
+      // Apply the diff to the input
+      var lines = oldStr.split('\n');
+      for (i = hunks.length - 1; i >= 0; i--) {
+        var hunk = hunks[i];
+        // Sanity check the input string. Bail if we don't match.
+        for (var j = 0; j < hunk.oldlength; j++) {
+          if (lines[hunk.start - 1 + j] !== hunk.removed[j]) {
+            return false;
+          }
+        }
+        Array.prototype.splice.apply(lines, [hunk.start - 1, hunk.oldlength].concat(hunk.added));
+      }
 
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
-  var keys = [];
-  for (var key in obj) keys.push(key);
-  return keys;
-}
-/*</replacement>*/
+      // Handle EOFNL insertion/removal
+      if (remEOFNL) {
+        while (!lines[lines.length - 1]) {
+          lines.pop();
+        }
+      } else if (addEOFNL) {
+        lines.push('');
+      }
+      return lines.join('\n');
+    },
 
+    convertChangesToXML: function(changes) {
+      var ret = [];
+      for (var i = 0; i < changes.length; i++) {
+        var change = changes[i];
+        if (change.added) {
+          ret.push('<ins>');
+        } else if (change.removed) {
+          ret.push('<del>');
+        }
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+        ret.push(escapeHTML(change.value));
 
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
-
-util.inherits(Duplex, Readable);
-
-forEach(objectKeys(Writable.prototype), function(method) {
-  if (!Duplex.prototype[method])
-    Duplex.prototype[method] = Writable.prototype[method];
-});
-
-function Duplex(options) {
-  if (!(this instanceof Duplex))
-    return new Duplex(options);
+        if (change.added) {
+          ret.push('</ins>');
+        } else if (change.removed) {
+          ret.push('</del>');
+        }
+      }
+      return ret.join('');
+    },
 
-  Readable.call(this, options);
-  Writable.call(this, options);
+    // See: http://code.google.com/p/google-diff-match-patch/wiki/API
+    convertChangesToDMP: function(changes) {
+      var ret = [],
+          change,
+          operation;
+      for (var i = 0; i < changes.length; i++) {
+        change = changes[i];
+        if (change.added) {
+          operation = 1;
+        } else if (change.removed) {
+          operation = -1;
+        } else {
+          operation = 0;
+        }
 
-  if (options && options.readable === false)
-    this.readable = false;
+        ret.push([operation, change.value]);
+      }
+      return ret;
+    },
 
-  if (options && options.writable === false)
-    this.writable = false;
+    canonicalize: canonicalize
+  };
 
-  this.allowHalfOpen = true;
-  if (options && options.allowHalfOpen === false)
-    this.allowHalfOpen = false;
+  /*istanbul ignore next */
+  /*global module */
+  if (typeof module !== 'undefined' && module.exports) {
+    module.exports = JsDiff;
+  } else if (false) {
+    /*global define */
+    define([], function() { return JsDiff; });
+  } else if (typeof global.JsDiff === 'undefined') {
+    global.JsDiff = JsDiff;
+  }
+}(this));
 
-  this.once('end', onend);
-}
+},{}],47:[function(require,module,exports){
+'use strict';
 
-// the no-half-open enforcer
-function onend() {
-  // if we allow half-open state, or if the writable side ended,
-  // then we're ok.
-  if (this.allowHalfOpen || this._writableState.ended)
-    return;
+var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
 
-  // no more data can be written.
-  // But allow more writes to happen in this tick.
-  process.nextTick(this.end.bind(this));
-}
+module.exports = function (str) {
+	if (typeof str !== 'string') {
+		throw new TypeError('Expected a string');
+	}
 
-function forEach (xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
-  }
-}
+	return str.replace(matchOperatorsRe, '\\$&');
+};
 
-}).call(this,require('_process'))
-},{"./_stream_readable":55,"./_stream_writable":57,"_process":51,"core-util-is":58,"inherits":48}],54:[function(require,module,exports){
+},{}],48:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -8627,3791 +9487,5980 @@ function forEach (xs, f) {
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
-
-module.exports = PassThrough;
-
-var Transform = require('./_stream_transform');
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+function EventEmitter() {
+  this._events = this._events || {};
+  this._maxListeners = this._maxListeners || undefined;
+}
+module.exports = EventEmitter;
 
-util.inherits(PassThrough, Transform);
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
 
-function PassThrough(options) {
-  if (!(this instanceof PassThrough))
-    return new PassThrough(options);
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
 
-  Transform.call(this, options);
-}
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+EventEmitter.defaultMaxListeners = 10;
 
-PassThrough.prototype._transform = function(chunk, encoding, cb) {
-  cb(null, chunk);
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function(n) {
+  if (!isNumber(n) || n < 0 || isNaN(n))
+    throw TypeError('n must be a positive number');
+  this._maxListeners = n;
+  return this;
 };
 
-},{"./_stream_transform":56,"core-util-is":58,"inherits":48}],55:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-module.exports = Readable;
+EventEmitter.prototype.emit = function(type) {
+  var er, handler, len, args, i, listeners;
 
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
+  if (!this._events)
+    this._events = {};
 
+  // If there is no 'error' event listener then throw.
+  if (type === 'error') {
+    if (!this._events.error ||
+        (isObject(this._events.error) && !this._events.error.length)) {
+      er = arguments[1];
+      if (er instanceof Error) {
+        throw er; // Unhandled 'error' event
+      } else {
+        // At least give some kind of context to the user
+        var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+        err.context = er;
+        throw err;
+      }
+    }
+  }
 
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+  handler = this._events[type];
 
-Readable.ReadableState = ReadableState;
+  if (isUndefined(handler))
+    return false;
 
-var EE = require('events').EventEmitter;
+  if (isFunction(handler)) {
+    switch (arguments.length) {
+      // fast cases
+      case 1:
+        handler.call(this);
+        break;
+      case 2:
+        handler.call(this, arguments[1]);
+        break;
+      case 3:
+        handler.call(this, arguments[1], arguments[2]);
+        break;
+      // slower
+      default:
+        args = Array.prototype.slice.call(arguments, 1);
+        handler.apply(this, args);
+    }
+  } else if (isObject(handler)) {
+    args = Array.prototype.slice.call(arguments, 1);
+    listeners = handler.slice();
+    len = listeners.length;
+    for (i = 0; i < len; i++)
+      listeners[i].apply(this, args);
+  }
 
-/*<replacement>*/
-if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
-  return emitter.listeners(type).length;
+  return true;
 };
-/*</replacement>*/
 
-var Stream = require('stream');
+EventEmitter.prototype.addListener = function(type, listener) {
+  var m;
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
 
-var StringDecoder;
+  if (!this._events)
+    this._events = {};
 
+  // To avoid recursion in the case that type === "newListener"! Before
+  // adding it to the listeners, first emit "newListener".
+  if (this._events.newListener)
+    this.emit('newListener', type,
+              isFunction(listener.listener) ?
+              listener.listener : listener);
 
-/*<replacement>*/
-var debug = require('util');
-if (debug && debug.debuglog) {
-  debug = debug.debuglog('stream');
-} else {
-  debug = function () {};
-}
-/*</replacement>*/
+  if (!this._events[type])
+    // Optimize the case of one listener. Don't need the extra array object.
+    this._events[type] = listener;
+  else if (isObject(this._events[type]))
+    // If we've already got an array, just append.
+    this._events[type].push(listener);
+  else
+    // Adding the second element, need to change to array.
+    this._events[type] = [this._events[type], listener];
 
+  // Check for listener leak
+  if (isObject(this._events[type]) && !this._events[type].warned) {
+    if (!isUndefined(this._maxListeners)) {
+      m = this._maxListeners;
+    } else {
+      m = EventEmitter.defaultMaxListeners;
+    }
 
-util.inherits(Readable, Stream);
+    if (m && m > 0 && this._events[type].length > m) {
+      this._events[type].warned = true;
+      console.error('(node) warning: possible EventEmitter memory ' +
+                    'leak detected. %d listeners added. ' +
+                    'Use emitter.setMaxListeners() to increase limit.',
+                    this._events[type].length);
+      if (typeof console.trace === 'function') {
+        // not supported in IE 10
+        console.trace();
+      }
+    }
+  }
 
-function ReadableState(options, stream) {
-  var Duplex = require('./_stream_duplex');
+  return this;
+};
 
-  options = options || {};
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
 
-  // the point at which it stops calling _read() to fill the buffer
-  // Note: 0 is a valid value, means "don't call _read preemptively ever"
-  var hwm = options.highWaterMark;
-  var defaultHwm = options.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
+EventEmitter.prototype.once = function(type, listener) {
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
 
-  // cast to ints.
-  this.highWaterMark = ~~this.highWaterMark;
+  var fired = false;
 
-  this.buffer = [];
-  this.length = 0;
-  this.pipes = null;
-  this.pipesCount = 0;
-  this.flowing = null;
-  this.ended = false;
-  this.endEmitted = false;
-  this.reading = false;
+  function g() {
+    this.removeListener(type, g);
 
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
-
-  // whenever we return null, then we set a flag to say
-  // that we're awaiting a 'readable' event emission.
-  this.needReadable = false;
-  this.emittedReadable = false;
-  this.readableListening = false;
-
-
-  // object stream flag. Used to make read(n) ignore n and to
-  // make all the buffer merging and length checks go away
-  this.objectMode = !!options.objectMode;
-
-  if (stream instanceof Duplex)
-    this.objectMode = this.objectMode || !!options.readableObjectMode;
-
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-  // when piping, we only care about 'readable' events that happen
-  // after read()ing all the bytes and not getting any pushback.
-  this.ranOut = false;
+    if (!fired) {
+      fired = true;
+      listener.apply(this, arguments);
+    }
+  }
 
-  // the number of writers that are awaiting a drain event in .pipe()s
-  this.awaitDrain = 0;
+  g.listener = listener;
+  this.on(type, g);
 
-  // if true, a maybeReadMore has been scheduled
-  this.readingMore = false;
+  return this;
+};
 
-  this.decoder = null;
-  this.encoding = null;
-  if (options.encoding) {
-    if (!StringDecoder)
-      StringDecoder = require('string_decoder/').StringDecoder;
-    this.decoder = new StringDecoder(options.encoding);
-    this.encoding = options.encoding;
-  }
-}
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+  var list, position, length, i;
 
-function Readable(options) {
-  var Duplex = require('./_stream_duplex');
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
 
-  if (!(this instanceof Readable))
-    return new Readable(options);
+  if (!this._events || !this._events[type])
+    return this;
 
-  this._readableState = new ReadableState(options, this);
+  list = this._events[type];
+  length = list.length;
+  position = -1;
 
-  // legacy
-  this.readable = true;
+  if (list === listener ||
+      (isFunction(list.listener) && list.listener === listener)) {
+    delete this._events[type];
+    if (this._events.removeListener)
+      this.emit('removeListener', type, listener);
 
-  Stream.call(this);
-}
+  } else if (isObject(list)) {
+    for (i = length; i-- > 0;) {
+      if (list[i] === listener ||
+          (list[i].listener && list[i].listener === listener)) {
+        position = i;
+        break;
+      }
+    }
 
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function(chunk, encoding) {
-  var state = this._readableState;
+    if (position < 0)
+      return this;
 
-  if (util.isString(chunk) && !state.objectMode) {
-    encoding = encoding || state.defaultEncoding;
-    if (encoding !== state.encoding) {
-      chunk = new Buffer(chunk, encoding);
-      encoding = '';
+    if (list.length === 1) {
+      list.length = 0;
+      delete this._events[type];
+    } else {
+      list.splice(position, 1);
     }
-  }
 
-  return readableAddChunk(this, state, chunk, encoding, false);
-};
+    if (this._events.removeListener)
+      this.emit('removeListener', type, listener);
+  }
 
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function(chunk) {
-  var state = this._readableState;
-  return readableAddChunk(this, state, chunk, '', true);
+  return this;
 };
 
-function readableAddChunk(stream, state, chunk, encoding, addToFront) {
-  var er = chunkInvalid(state, chunk);
-  if (er) {
-    stream.emit('error', er);
-  } else if (util.isNullOrUndefined(chunk)) {
-    state.reading = false;
-    if (!state.ended)
-      onEofChunk(stream, state);
-  } else if (state.objectMode || chunk && chunk.length > 0) {
-    if (state.ended && !addToFront) {
-      var e = new Error('stream.push() after EOF');
-      stream.emit('error', e);
-    } else if (state.endEmitted && addToFront) {
-      var e = new Error('stream.unshift() after end event');
-      stream.emit('error', e);
-    } else {
-      if (state.decoder && !addToFront && !encoding)
-        chunk = state.decoder.write(chunk);
+EventEmitter.prototype.removeAllListeners = function(type) {
+  var key, listeners;
 
-      if (!addToFront)
-        state.reading = false;
+  if (!this._events)
+    return this;
 
-      // if we want the data now, just emit it.
-      if (state.flowing && state.length === 0 && !state.sync) {
-        stream.emit('data', chunk);
-        stream.read(0);
-      } else {
-        // update the buffer info.
-        state.length += state.objectMode ? 1 : chunk.length;
-        if (addToFront)
-          state.buffer.unshift(chunk);
-        else
-          state.buffer.push(chunk);
-
-        if (state.needReadable)
-          emitReadable(stream);
-      }
+  // not listening for removeListener, no need to emit
+  if (!this._events.removeListener) {
+    if (arguments.length === 0)
+      this._events = {};
+    else if (this._events[type])
+      delete this._events[type];
+    return this;
+  }
 
-      maybeReadMore(stream, state);
+  // emit removeListener for all listeners on all events
+  if (arguments.length === 0) {
+    for (key in this._events) {
+      if (key === 'removeListener') continue;
+      this.removeAllListeners(key);
     }
-  } else if (!addToFront) {
-    state.reading = false;
+    this.removeAllListeners('removeListener');
+    this._events = {};
+    return this;
   }
 
-  return needMoreData(state);
-}
-
-
+  listeners = this._events[type];
 
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes.  This is to work around cases where hwm=0,
-// such as the repl.  Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
-  return !state.ended &&
-         (state.needReadable ||
-          state.length < state.highWaterMark ||
-          state.length === 0);
-}
+  if (isFunction(listeners)) {
+    this.removeListener(type, listeners);
+  } else if (listeners) {
+    // LIFO order
+    while (listeners.length)
+      this.removeListener(type, listeners[listeners.length - 1]);
+  }
+  delete this._events[type];
 
-// backwards compatibility.
-Readable.prototype.setEncoding = function(enc) {
-  if (!StringDecoder)
-    StringDecoder = require('string_decoder/').StringDecoder;
-  this._readableState.decoder = new StringDecoder(enc);
-  this._readableState.encoding = enc;
   return this;
 };
 
-// Don't raise the hwm > 128MB
-var MAX_HWM = 0x800000;
-function roundUpToNextPowerOf2(n) {
-  if (n >= MAX_HWM) {
-    n = MAX_HWM;
-  } else {
-    // Get the next highest power of 2
-    n--;
-    for (var p = 1; p < 32; p <<= 1) n |= n >> p;
-    n++;
-  }
-  return n;
-}
-
-function howMuchToRead(n, state) {
-  if (state.length === 0 && state.ended)
-    return 0;
+EventEmitter.prototype.listeners = function(type) {
+  var ret;
+  if (!this._events || !this._events[type])
+    ret = [];
+  else if (isFunction(this._events[type]))
+    ret = [this._events[type]];
+  else
+    ret = this._events[type].slice();
+  return ret;
+};
 
-  if (state.objectMode)
-    return n === 0 ? 0 : 1;
+EventEmitter.prototype.listenerCount = function(type) {
+  if (this._events) {
+    var evlistener = this._events[type];
 
-  if (isNaN(n) || util.isNull(n)) {
-    // only flow one buffer at a time
-    if (state.flowing && state.buffer.length)
-      return state.buffer[0].length;
-    else
-      return state.length;
+    if (isFunction(evlistener))
+      return 1;
+    else if (evlistener)
+      return evlistener.length;
   }
+  return 0;
+};
 
-  if (n <= 0)
-    return 0;
+EventEmitter.listenerCount = function(emitter, type) {
+  return emitter.listenerCount(type);
+};
 
-  // If we're asking for more than the target buffer level,
-  // then raise the water mark.  Bump up to the next highest
-  // power of 2, to prevent increasing it excessively in tiny
-  // amounts.
-  if (n > state.highWaterMark)
-    state.highWaterMark = roundUpToNextPowerOf2(n);
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
 
-  // don't have that much.  return null, unless we've ended.
-  if (n > state.length) {
-    if (!state.ended) {
-      state.needReadable = true;
-      return 0;
-    } else
-      return state.length;
-  }
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
 
-  return n;
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
 }
 
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function(n) {
-  debug('read', n);
-  var state = this._readableState;
-  var nOrig = n;
+function isUndefined(arg) {
+  return arg === void 0;
+}
 
-  if (!util.isNumber(n) || n > 0)
-    state.emittedReadable = false;
+},{}],49:[function(require,module,exports){
+(function (process){
+// Growl - Copyright TJ Holowaychuk <tj@vision-media.ca> (MIT Licensed)
 
-  // if we're doing read(0) to trigger a readable event, but we
-  // already have a bunch of data in the buffer, then just trigger
-  // the 'readable' event and move on.
-  if (n === 0 &&
-      state.needReadable &&
-      (state.length >= state.highWaterMark || state.ended)) {
-    debug('read: emitReadable', state.length, state.ended);
-    if (state.length === 0 && state.ended)
-      endReadable(this);
-    else
-      emitReadable(this);
-    return null;
-  }
+/**
+ * Module dependencies.
+ */
 
-  n = howMuchToRead(n, state);
+var exec = require('child_process').exec
+  , fs = require('fs')
+  , path = require('path')
+  , exists = fs.existsSync || path.existsSync
+  , os = require('os')
+  , quote = JSON.stringify
+  , cmd;
 
-  // if we've ended, and we're now clear, then finish it up.
-  if (n === 0 && state.ended) {
-    if (state.length === 0)
-      endReadable(this);
-    return null;
+function which(name) {
+  var paths = process.env.PATH.split(':');
+  var loc;
+
+  for (var i = 0, len = paths.length; i < len; ++i) {
+    loc = path.join(paths[i], name);
+    if (exists(loc)) return loc;
   }
+}
 
-  // All the actual chunk generation logic needs to be
-  // *below* the call to _read.  The reason is that in certain
-  // synthetic stream cases, such as passthrough streams, _read
-  // may be a completely synchronous operation which may change
-  // the state of the read buffer, providing enough data when
-  // before there was *not* enough.
-  //
-  // So, the steps are:
-  // 1. Figure out what the state of things will be after we do
-  // a read from the buffer.
-  //
-  // 2. If that resulting state will trigger a _read, then call _read.
-  // Note that this may be asynchronous, or synchronous.  Yes, it is
-  // deeply ugly to write APIs this way, but that still doesn't mean
-  // that the Readable class should behave improperly, as streams are
-  // designed to be sync/async agnostic.
-  // Take note if the _read call is sync or async (ie, if the read call
-  // has returned yet), so that we know whether or not it's safe to emit
-  // 'readable' etc.
-  //
-  // 3. Actually pull the requested chunks out of the buffer and return.
+switch(os.type()) {
+  case 'Darwin':
+    if (which('terminal-notifier')) {
+      cmd = {
+          type: "Darwin-NotificationCenter"
+        , pkg: "terminal-notifier"
+        , msg: '-message'
+        , title: '-title'
+        , subtitle: '-subtitle'
+        , icon: '-appIcon'
+        , sound:  '-sound'
+        , url: '-open'
+        , priority: {
+              cmd: '-execute'
+            , range: []
+          }
+      };
+    } else {
+      cmd = {
+          type: "Darwin-Growl"
+        , pkg: "growlnotify"
+        , msg: '-m'
+        , sticky: '--sticky'
+        , priority: {
+              cmd: '--priority'
+            , range: [
+                -2
+              , -1
+              , 0
+              , 1
+              , 2
+              , "Very Low"
+              , "Moderate"
+              , "Normal"
+              , "High"
+              , "Emergency"
+            ]
+          }
+      };
+    }
+    break;
+  case 'Linux':
+    if (which('growl')) {
+      cmd = {
+          type: "Linux-Growl"
+        , pkg: "growl"
+        , msg: '-m'
+        , title: '-title'
+        , subtitle: '-subtitle'
+        , host: {
+            cmd: '-H'
+          , hostname: '192.168.33.1'
+        }
+      };
+    } else {
+      cmd = {
+          type: "Linux"
+        , pkg: "notify-send"
+        , msg: ''
+        , sticky: '-t 0'
+        , icon: '-i'
+        , priority: {
+            cmd: '-u'
+          , range: [
+              "low"
+            , "normal"
+            , "critical"
+          ]
+        }
+      };
+    }
+    break;
+  case 'Windows_NT':
+    cmd = {
+        type: "Windows"
+      , pkg: "growlnotify"
+      , msg: ''
+      , sticky: '/s:true'
+      , title: '/t:'
+      , icon: '/i:'
+      , url: '/cu:'
+      , priority: {
+            cmd: '/p:'
+          , range: [
+              -2
+            , -1
+            , 0
+            , 1
+            , 2
+          ]
+        }
+    };
+    break;
+}
 
-  // if we need a readable event, then we need to do some reading.
-  var doRead = state.needReadable;
-  debug('need readable', doRead);
+/**
+ * Expose `growl`.
+ */
 
-  // if we currently have less than the highWaterMark, then also read some
-  if (state.length === 0 || state.length - n < state.highWaterMark) {
-    doRead = true;
-    debug('length less than watermark', doRead);
-  }
+exports = module.exports = growl;
 
-  // however, if we've ended, then there's no point, and if we're already
-  // reading, then it's unnecessary.
-  if (state.ended || state.reading) {
-    doRead = false;
-    debug('reading or ended', doRead);
-  }
+/**
+ * Node-growl version.
+ */
 
-  if (doRead) {
-    debug('do read');
-    state.reading = true;
-    state.sync = true;
-    // if the length is currently zero, then we *need* a readable event.
-    if (state.length === 0)
-      state.needReadable = true;
-    // call internal read method
-    this._read(state.highWaterMark);
-    state.sync = false;
-  }
+exports.version = '1.4.1'
 
-  // If _read pushed data synchronously, then `reading` will be false,
-  // and we need to re-evaluate how much data we can return to the user.
-  if (doRead && !state.reading)
-    n = howMuchToRead(nOrig, state);
+/**
+ * Send growl notification _msg_ with _options_.
+ *
+ * Options:
+ *
+ *  - title   Notification title
+ *  - sticky  Make the notification stick (defaults to false)
+ *  - priority  Specify an int or named key (default is 0)
+ *  - name    Application name (defaults to growlnotify)
+ *  - sound   Sound efect ( in OSx defined in preferences -> sound -> effects) * works only in OSX > 10.8x
+ *  - image
+ *    - path to an icon sets --iconpath
+ *    - path to an image sets --image
+ *    - capitalized word sets --appIcon
+ *    - filename uses extname as --icon
+ *    - otherwise treated as --icon
+ *
+ * Examples:
+ *
+ *   growl('New email')
+ *   growl('5 new emails', { title: 'Thunderbird' })
+ *   growl('5 new emails', { title: 'Thunderbird', sound: 'Purr' })
+ *   growl('Email sent', function(){
+ *     // ... notification sent
+ *   })
+ *
+ * @param {string} msg
+ * @param {object} options
+ * @param {function} fn
+ * @api public
+ */
 
-  var ret;
-  if (n > 0)
-    ret = fromList(n, state);
-  else
-    ret = null;
+function growl(msg, options, fn) {
+  var image
+    , args
+    , options = options || {}
+    , fn = fn || function(){};
 
-  if (util.isNull(ret)) {
-    state.needReadable = true;
-    n = 0;
+  if (options.exec) {
+    cmd = {
+        type: "Custom"
+      , pkg: options.exec
+      , range: []
+    };
   }
 
-  state.length -= n;
-
-  // If we have nothing in the buffer, then we want to know
-  // as soon as we *do* get something into the buffer.
-  if (state.length === 0 && !state.ended)
-    state.needReadable = true;
-
-  // If we tried to read() past the EOF, then emit end on the next tick.
-  if (nOrig !== n && state.ended && state.length === 0)
-    endReadable(this);
-
-  if (!util.isNull(ret))
-    this.emit('data', ret);
-
-  return ret;
-};
+  // noop
+  if (!cmd) return fn(new Error('growl not supported on this platform'));
+  args = [cmd.pkg];
 
-function chunkInvalid(state, chunk) {
-  var er = null;
-  if (!util.isBuffer(chunk) &&
-      !util.isString(chunk) &&
-      !util.isNullOrUndefined(chunk) &&
-      !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
+  // image
+  if (image = options.image) {
+    switch(cmd.type) {
+      case 'Darwin-Growl':
+        var flag, ext = path.extname(image).substr(1)
+        flag = flag || ext == 'icns' && 'iconpath'
+        flag = flag || /^[A-Z]/.test(image) && 'appIcon'
+        flag = flag || /^png|gif|jpe?g$/.test(ext) && 'image'
+        flag = flag || ext && (image = ext) && 'icon'
+        flag = flag || 'icon'
+        args.push('--' + flag, quote(image))
+        break;
+      case 'Darwin-NotificationCenter':
+        args.push(cmd.icon, quote(image));
+        break;
+      case 'Linux':
+        args.push(cmd.icon, quote(image));
+        // libnotify defaults to sticky, set a hint for transient notifications
+        if (!options.sticky) args.push('--hint=int:transient:1');
+        break;
+      case 'Windows':
+        args.push(cmd.icon + quote(image));
+        break;
+    }
   }
-  return er;
-}
 
+  // sticky
+  if (options.sticky) args.push(cmd.sticky);
 
-function onEofChunk(stream, state) {
-  if (state.decoder && !state.ended) {
-    var chunk = state.decoder.end();
-    if (chunk && chunk.length) {
-      state.buffer.push(chunk);
-      state.length += state.objectMode ? 1 : chunk.length;
+  // priority
+  if (options.priority) {
+    var priority = options.priority + '';
+    var checkindexOf = cmd.priority.range.indexOf(priority);
+    if (~cmd.priority.range.indexOf(priority)) {
+      args.push(cmd.priority, options.priority);
     }
   }
-  state.ended = true;
-
-  // emit 'readable' now to make sure it gets picked up.
-  emitReadable(stream);
-}
 
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow.  This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
-  var state = stream._readableState;
-  state.needReadable = false;
-  if (!state.emittedReadable) {
-    debug('emitReadable', state.flowing);
-    state.emittedReadable = true;
-    if (state.sync)
-      process.nextTick(function() {
-        emitReadable_(stream);
-      });
-    else
-      emitReadable_(stream);
+  //sound
+  if(options.sound && cmd.type === 'Darwin-NotificationCenter'){
+    args.push(cmd.sound, options.sound)
   }
-}
-
-function emitReadable_(stream) {
-  debug('emit readable');
-  stream.emit('readable');
-  flow(stream);
-}
 
-
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data.  that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
-  if (!state.readingMore) {
-    state.readingMore = true;
-    process.nextTick(function() {
-      maybeReadMore_(stream, state);
-    });
+  // name
+  if (options.name && cmd.type === "Darwin-Growl") {
+    args.push('--name', options.name);
   }
-}
 
-function maybeReadMore_(stream, state) {
-  var len = state.length;
-  while (!state.reading && !state.flowing && !state.ended &&
-         state.length < state.highWaterMark) {
-    debug('maybeReadMore read 0');
-    stream.read(0);
-    if (len === state.length)
-      // didn't get any data, stop spinning.
+  switch(cmd.type) {
+    case 'Darwin-Growl':
+      args.push(cmd.msg);
+      args.push(quote(msg).replace(/\\n/g, '\n'));
+      if (options.title) args.push(quote(options.title));
       break;
-    else
-      len = state.length;
-  }
-  state.readingMore = false;
-}
-
-// abstract method.  to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function(n) {
-  this.emit('error', new Error('not implemented'));
-};
-
-Readable.prototype.pipe = function(dest, pipeOpts) {
-  var src = this;
-  var state = this._readableState;
-
-  switch (state.pipesCount) {
-    case 0:
-      state.pipes = dest;
+    case 'Darwin-NotificationCenter':
+      args.push(cmd.msg);
+      var stringifiedMsg = quote(msg);
+      var escapedMsg = stringifiedMsg.replace(/\\n/g, '\n');
+      args.push(escapedMsg);
+      if (options.title) {
+        args.push(cmd.title);
+        args.push(quote(options.title));
+      }
+      if (options.subtitle) {
+        args.push(cmd.subtitle);
+        args.push(quote(options.subtitle));
+      }
+      if (options.url) {
+        args.push(cmd.url);
+        args.push(quote(options.url));
+      }
       break;
-    case 1:
-      state.pipes = [state.pipes, dest];
+    case 'Linux-Growl':
+      args.push(cmd.msg);
+      args.push(quote(msg).replace(/\\n/g, '\n'));
+      if (options.title) args.push(quote(options.title));
+      if (cmd.host) {
+        args.push(cmd.host.cmd, cmd.host.hostname)
+      }
       break;
-    default:
-      state.pipes.push(dest);
+    case 'Linux':
+      if (options.title) {
+        args.push(quote(options.title));
+        args.push(cmd.msg);
+        args.push(quote(msg).replace(/\\n/g, '\n'));
+      } else {
+        args.push(quote(msg).replace(/\\n/g, '\n'));
+      }
+      break;
+    case 'Windows':
+      args.push(quote(msg).replace(/\\n/g, '\n'));
+      if (options.title) args.push(cmd.title + quote(options.title));
+      if (options.url) args.push(cmd.url + quote(options.url));
+      break;
+    case 'Custom':
+      args[0] = (function(origCommand) {
+        var message = options.title
+          ? options.title + ': ' + msg
+          : msg;
+        var command = origCommand.replace(/(^|[^%])%s/g, '$1' + quote(message));
+        if (command === origCommand) args.push(quote(message));
+        return command;
+      })(args[0]);
       break;
   }
-  state.pipesCount += 1;
-  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
-
-  var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
-              dest !== process.stdout &&
-              dest !== process.stderr;
-
-  var endFn = doEnd ? onend : cleanup;
-  if (state.endEmitted)
-    process.nextTick(endFn);
-  else
-    src.once('end', endFn);
 
-  dest.on('unpipe', onunpipe);
-  function onunpipe(readable) {
-    debug('onunpipe');
-    if (readable === src) {
-      cleanup();
-    }
-  }
+  // execute
+  exec(args.join(' '), fn);
+};
 
-  function onend() {
-    debug('onend');
-    dest.end();
-  }
+}).call(this,require('_process'))
+},{"_process":67,"child_process":42,"fs":42,"os":65,"path":42}],50:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+  var e, m
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var nBits = -7
+  var i = isLE ? (nBytes - 1) : 0
+  var d = isLE ? -1 : 1
+  var s = buffer[offset + i]
 
-  // when the dest drains, it reduces the awaitDrain counter
-  // on the source.  This would be more elegant with a .once()
-  // handler in flow(), but adding and removing repeatedly is
-  // too slow.
-  var ondrain = pipeOnDrain(src);
-  dest.on('drain', ondrain);
+  i += d
 
-  function cleanup() {
-    debug('cleanup');
-    // cleanup event handlers once the pipe is broken
-    dest.removeListener('close', onclose);
-    dest.removeListener('finish', onfinish);
-    dest.removeListener('drain', ondrain);
-    dest.removeListener('error', onerror);
-    dest.removeListener('unpipe', onunpipe);
-    src.removeListener('end', onend);
-    src.removeListener('end', cleanup);
-    src.removeListener('data', ondata);
+  e = s & ((1 << (-nBits)) - 1)
+  s >>= (-nBits)
+  nBits += eLen
+  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
 
-    // if the reader is waiting for a drain event from this
-    // specific writer, then it would cause it to never start
-    // flowing again.
-    // So, if this is awaiting a drain, then we just call it now.
-    // If we don't know, then assume that we are waiting for one.
-    if (state.awaitDrain &&
-        (!dest._writableState || dest._writableState.needDrain))
-      ondrain();
-  }
+  m = e & ((1 << (-nBits)) - 1)
+  e >>= (-nBits)
+  nBits += mLen
+  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
 
-  src.on('data', ondata);
-  function ondata(chunk) {
-    debug('ondata');
-    var ret = dest.write(chunk);
-    if (false === ret) {
-      debug('false write response, pause',
-            src._readableState.awaitDrain);
-      src._readableState.awaitDrain++;
-      src.pause();
-    }
+  if (e === 0) {
+    e = 1 - eBias
+  } else if (e === eMax) {
+    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  } else {
+    m = m + Math.pow(2, mLen)
+    e = e - eBias
   }
+  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
 
-  // if the dest has an error, then stop piping into it.
-  // however, don't suppress the throwing behavior for this.
-  function onerror(er) {
-    debug('onerror', er);
-    unpipe();
-    dest.removeListener('error', onerror);
-    if (EE.listenerCount(dest, 'error') === 0)
-      dest.emit('error', er);
-  }
-  // This is a brutally ugly hack to make sure that our error handler
-  // is attached before any userland ones.  NEVER DO THIS.
-  if (!dest._events || !dest._events.error)
-    dest.on('error', onerror);
-  else if (isArray(dest._events.error))
-    dest._events.error.unshift(onerror);
-  else
-    dest._events.error = [onerror, dest._events.error];
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+  var e, m, c
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+  var i = isLE ? 0 : (nBytes - 1)
+  var d = isLE ? 1 : -1
+  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
 
+  value = Math.abs(value)
 
+  if (isNaN(value) || value === Infinity) {
+    m = isNaN(value) ? 1 : 0
+    e = eMax
+  } else {
+    e = Math.floor(Math.log(value) / Math.LN2)
+    if (value * (c = Math.pow(2, -e)) < 1) {
+      e--
+      c *= 2
+    }
+    if (e + eBias >= 1) {
+      value += rt / c
+    } else {
+      value += rt * Math.pow(2, 1 - eBias)
+    }
+    if (value * c >= 2) {
+      e++
+      c /= 2
+    }
 
-  // Both close and finish should trigger unpipe, but only once.
-  function onclose() {
-    dest.removeListener('finish', onfinish);
-    unpipe();
-  }
-  dest.once('close', onclose);
-  function onfinish() {
-    debug('onfinish');
-    dest.removeListener('close', onclose);
-    unpipe();
+    if (e + eBias >= eMax) {
+      m = 0
+      e = eMax
+    } else if (e + eBias >= 1) {
+      m = (value * c - 1) * Math.pow(2, mLen)
+      e = e + eBias
+    } else {
+      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+      e = 0
+    }
   }
-  dest.once('finish', onfinish);
 
-  function unpipe() {
-    debug('unpipe');
-    src.unpipe(dest);
-  }
+  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
 
-  // tell the dest that it's being piped to
-  dest.emit('pipe', src);
+  e = (e << mLen) | m
+  eLen += mLen
+  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
 
-  // start the flow if it hasn't been started already.
-  if (!state.flowing) {
-    debug('pipe resume');
-    src.resume();
+  buffer[offset + i - d] |= s * 128
+}
+
+},{}],51:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    ctor.prototype = Object.create(superCtor.prototype, {
+      constructor: {
+        value: ctor,
+        enumerable: false,
+        writable: true,
+        configurable: true
+      }
+    });
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    var TempCtor = function () {}
+    TempCtor.prototype = superCtor.prototype
+    ctor.prototype = new TempCtor()
+    ctor.prototype.constructor = ctor
   }
+}
 
-  return dest;
-};
+},{}],52:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license  MIT
+ */
 
-function pipeOnDrain(src) {
-  return function() {
-    var state = src._readableState;
-    debug('pipeOnDrain', state.awaitDrain);
-    if (state.awaitDrain)
-      state.awaitDrain--;
-    if (state.awaitDrain === 0 && EE.listenerCount(src, 'data')) {
-      state.flowing = true;
-      flow(src);
-    }
-  };
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
 }
 
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
 
-Readable.prototype.unpipe = function(dest) {
-  var state = this._readableState;
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+}
 
-  // if we're not piping anywhere, then do nothing.
-  if (state.pipesCount === 0)
-    return this;
+},{}],53:[function(require,module,exports){
+var toString = {}.toString;
 
-  // just one destination.  most common case.
-  if (state.pipesCount === 1) {
-    // passed in one, but it's not the right one.
-    if (dest && dest !== state.pipes)
-      return this;
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
 
-    if (!dest)
-      dest = state.pipes;
+},{}],54:[function(require,module,exports){
+(function (global){
+/*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */
+;(function () {
+  // Detect the `define` function exposed by asynchronous module loaders. The
+  // strict `define` check is necessary for compatibility with `r.js`.
+  var isLoader = false;
+
+  // A set of types used to distinguish objects from primitives.
+  var objectTypes = {
+    "function": true,
+    "object": true
+  };
 
-    // got a match.
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-    if (dest)
-      dest.emit('unpipe', this);
-    return this;
-  }
+  // Detect the `exports` object exposed by CommonJS implementations.
+  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+
+  // Use the `global` object exposed by Node (including Browserify via
+  // `insert-module-globals`), Narwhal, and Ringo as the default context,
+  // and the `window` object in browsers. Rhino exports a `global` function
+  // instead.
+  var root = objectTypes[typeof window] && window || this,
+      freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global;
+
+  if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) {
+    root = freeGlobal;
+  }
+
+  // Public: Initializes JSON 3 using the given `context` object, attaching the
+  // `stringify` and `parse` functions to the specified `exports` object.
+  function runInContext(context, exports) {
+    context || (context = root["Object"]());
+    exports || (exports = root["Object"]());
+
+    // Native constructor aliases.
+    var Number = context["Number"] || root["Number"],
+        String = context["String"] || root["String"],
+        Object = context["Object"] || root["Object"],
+        Date = context["Date"] || root["Date"],
+        SyntaxError = context["SyntaxError"] || root["SyntaxError"],
+        TypeError = context["TypeError"] || root["TypeError"],
+        Math = context["Math"] || root["Math"],
+        nativeJSON = context["JSON"] || root["JSON"];
+
+    // Delegate to the native `stringify` and `parse` implementations.
+    if (typeof nativeJSON == "object" && nativeJSON) {
+      exports.stringify = nativeJSON.stringify;
+      exports.parse = nativeJSON.parse;
+    }
+
+    // Convenience aliases.
+    var objectProto = Object.prototype,
+        getClass = objectProto.toString,
+        isProperty, forEach, undef;
+
+    // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
+    var isExtended = new Date(-3509827334573292);
+    try {
+      // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
+      // results for certain dates in Opera >= 10.53.
+      isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
+        // Safari < 2.0.2 stores the internal millisecond time value correctly,
+        // but clips the values returned by the date methods to the range of
+        // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
+        isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
+    } catch (exception) {}
+
+    // Internal: Determines whether the native `JSON.stringify` and `parse`
+    // implementations are spec-compliant. Based on work by Ken Snyder.
+    function has(name) {
+      if (has[name] !== undef) {
+        // Return cached feature test result.
+        return has[name];
+      }
+      var isSupported;
+      if (name == "bug-string-char-index") {
+        // IE <= 7 doesn't support accessing string characters using square
+        // bracket notation. IE 8 only supports this for primitives.
+        isSupported = "a"[0] != "a";
+      } else if (name == "json") {
+        // Indicates whether both `JSON.stringify` and `JSON.parse` are
+        // supported.
+        isSupported = has("json-stringify") && has("json-parse");
+      } else {
+        var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
+        // Test `JSON.stringify`.
+        if (name == "json-stringify") {
+          var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended;
+          if (stringifySupported) {
+            // A test function object with a custom `toJSON` method.
+            (value = function () {
+              return 1;
+            }).toJSON = value;
+            try {
+              stringifySupported =
+                // Firefox 3.1b1 and b2 serialize string, number, and boolean
+                // primitives as object literals.
+                stringify(0) === "0" &&
+                // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
+                // literals.
+                stringify(new Number()) === "0" &&
+                stringify(new String()) == '""' &&
+                // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
+                // does not define a canonical JSON representation (this applies to
+                // objects with `toJSON` properties as well, *unless* they are nested
+                // within an object or array).
+                stringify(getClass) === undef &&
+                // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
+                // FF 3.1b3 pass this test.
+                stringify(undef) === undef &&
+                // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
+                // respectively, if the value is omitted entirely.
+                stringify() === undef &&
+                // FF 3.1b1, 2 throw an error if the given value is not a number,
+                // string, array, object, Boolean, or `null` literal. This applies to
+                // objects with custom `toJSON` methods as well, unless they are nested
+                // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
+                // methods entirely.
+                stringify(value) === "1" &&
+                stringify([value]) == "[1]" &&
+                // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
+                // `"[null]"`.
+                stringify([undef]) == "[null]" &&
+                // YUI 3.0.0b1 fails to serialize `null` literals.
+                stringify(null) == "null" &&
+                // FF 3.1b1, 2 halts serialization if an array contains a function:
+                // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
+                // elides non-JSON values from objects and arrays, unless they
+                // define custom `toJSON` methods.
+                stringify([undef, getClass, null]) == "[null,null,null]" &&
+                // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
+                // where character escape codes are expected (e.g., `\b` => `\u0008`).
+                stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
+                // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
+                stringify(null, value) === "1" &&
+                stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
+                // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
+                // serialize extended years.
+                stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
+                // The milliseconds are optional in ES 5, but required in 5.1.
+                stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
+                // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
+                // four-digit years instead of six-digit years. Credits: @Yaffle.
+                stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
+                // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
+                // values less than 1000. Credits: @Yaffle.
+                stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
+            } catch (exception) {
+              stringifySupported = false;
+            }
+          }
+          isSupported = stringifySupported;
+        }
+        // Test `JSON.parse`.
+        if (name == "json-parse") {
+          var parse = exports.parse;
+          if (typeof parse == "function") {
+            try {
+              // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
+              // Conforming implementations should also coerce the initial argument to
+              // a string prior to parsing.
+              if (parse("0") === 0 && !parse(false)) {
+                // Simple parsing test.
+                value = parse(serialized);
+                var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
+                if (parseSupported) {
+                  try {
+                    // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
+                    parseSupported = !parse('"\t"');
+                  } catch (exception) {}
+                  if (parseSupported) {
+                    try {
+                      // FF 4.0 and 4.0.1 allow leading `+` signs and leading
+                      // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
+                      // certain octal literals.
+                      parseSupported = parse("01") !== 1;
+                    } catch (exception) {}
+                  }
+                  if (parseSupported) {
+                    try {
+                      // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
+                      // points. These environments, along with FF 3.1b1 and 2,
+                      // also allow trailing commas in JSON objects and arrays.
+                      parseSupported = parse("1.") !== 1;
+                    } catch (exception) {}
+                  }
+                }
+              }
+            } catch (exception) {
+              parseSupported = false;
+            }
+          }
+          isSupported = parseSupported;
+        }
+      }
+      return has[name] = !!isSupported;
+    }
+
+    if (!has("json")) {
+      // Common `[[Class]]` name aliases.
+      var functionClass = "[object Function]",
+          dateClass = "[object Date]",
+          numberClass = "[object Number]",
+          stringClass = "[object String]",
+          arrayClass = "[object Array]",
+          booleanClass = "[object Boolean]";
+
+      // Detect incomplete support for accessing string characters by index.
+      var charIndexBuggy = has("bug-string-char-index");
+
+      // Define additional utility methods if the `Date` methods are buggy.
+      if (!isExtended) {
+        var floor = Math.floor;
+        // A mapping between the months of the year and the number of days between
+        // January 1st and the first of the respective month.
+        var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
+        // Internal: Calculates the number of days between the Unix epoch and the
+        // first day of the given month.
+        var getDay = function (year, month) {
+          return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
+        };
+      }
 
-  // slow case. multiple pipe destinations.
+      // Internal: Determines if a property is a direct property of the given
+      // object. Delegates to the native `Object#hasOwnProperty` method.
+      if (!(isProperty = objectProto.hasOwnProperty)) {
+        isProperty = function (property) {
+          var members = {}, constructor;
+          if ((members.__proto__ = null, members.__proto__ = {
+            // The *proto* property cannot be set multiple times in recent
+            // versions of Firefox and SeaMonkey.
+            "toString": 1
+          }, members).toString != getClass) {
+            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
+            // supports the mutable *proto* property.
+            isProperty = function (property) {
+              // Capture and break the object's prototype chain (see section 8.6.2
+              // of the ES 5.1 spec). The parenthesized expression prevents an
+              // unsafe transformation by the Closure Compiler.
+              var original = this.__proto__, result = property in (this.__proto__ = null, this);
+              // Restore the original prototype chain.
+              this.__proto__ = original;
+              return result;
+            };
+          } else {
+            // Capture a reference to the top-level `Object` constructor.
+            constructor = members.constructor;
+            // Use the `constructor` property to simulate `Object#hasOwnProperty` in
+            // other environments.
+            isProperty = function (property) {
+              var parent = (this.constructor || constructor).prototype;
+              return property in this && !(property in parent && this[property] === parent[property]);
+            };
+          }
+          members = null;
+          return isProperty.call(this, property);
+        };
+      }
 
-  if (!dest) {
-    // remove all.
-    var dests = state.pipes;
-    var len = state.pipesCount;
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-
-    for (var i = 0; i < len; i++)
-      dests[i].emit('unpipe', this);
-    return this;
-  }
-
-  // try to find the right one.
-  var i = indexOf(state.pipes, dest);
-  if (i === -1)
-    return this;
-
-  state.pipes.splice(i, 1);
-  state.pipesCount -= 1;
-  if (state.pipesCount === 1)
-    state.pipes = state.pipes[0];
-
-  dest.emit('unpipe', this);
-
-  return this;
-};
+      // Internal: Normalizes the `for...in` iteration algorithm across
+      // environments. Each enumerated key is yielded to a `callback` function.
+      forEach = function (object, callback) {
+        var size = 0, Properties, members, property;
+
+        // Tests for bugs in the current environment's `for...in` algorithm. The
+        // `valueOf` property inherits the non-enumerable flag from
+        // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
+        (Properties = function () {
+          this.valueOf = 0;
+        }).prototype.valueOf = 0;
+
+        // Iterate over a new instance of the `Properties` class.
+        members = new Properties();
+        for (property in members) {
+          // Ignore all properties inherited from `Object.prototype`.
+          if (isProperty.call(members, property)) {
+            size++;
+          }
+        }
+        Properties = members = null;
+
+        // Normalize the iteration algorithm.
+        if (!size) {
+          // A list of non-enumerable properties inherited from `Object.prototype`.
+          members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
+          // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
+          // properties.
+          forEach = function (object, callback) {
+            var isFunction = getClass.call(object) == functionClass, property, length;
+            var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;
+            for (property in object) {
+              // Gecko <= 1.0 enumerates the `prototype` property of functions under
+              // certain conditions; IE does not.
+              if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
+                callback(property);
+              }
+            }
+            // Manually invoke the callback for each non-enumerable property.
+            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
+          };
+        } else if (size == 2) {
+          // Safari <= 2.0.4 enumerates shadowed properties twice.
+          forEach = function (object, callback) {
+            // Create a set of iterated properties.
+            var members = {}, isFunction = getClass.call(object) == functionClass, property;
+            for (property in object) {
+              // Store each property name to prevent double enumeration. The
+              // `prototype` property of functions is not enumerated due to cross-
+              // environment inconsistencies.
+              if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
+                callback(property);
+              }
+            }
+          };
+        } else {
+          // No bugs detected; use the standard `for...in` algorithm.
+          forEach = function (object, callback) {
+            var isFunction = getClass.call(object) == functionClass, property, isConstructor;
+            for (property in object) {
+              if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
+                callback(property);
+              }
+            }
+            // Manually invoke the callback for the `constructor` property due to
+            // cross-environment inconsistencies.
+            if (isConstructor || isProperty.call(object, (property = "constructor"))) {
+              callback(property);
+            }
+          };
+        }
+        return forEach(object, callback);
+      };
 
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function(ev, fn) {
-  var res = Stream.prototype.on.call(this, ev, fn);
+      // Public: Serializes a JavaScript `value` as a JSON string. The optional
+      // `filter` argument may specify either a function that alters how object and
+      // array members are serialized, or an array of strings and numbers that
+      // indicates which properties should be serialized. The optional `width`
+      // argument may be either a string or number that specifies the indentation
+      // level of the output.
+      if (!has("json-stringify")) {
+        // Internal: A map of control characters and their escaped equivalents.
+        var Escapes = {
+          92: "\\\\",
+          34: '\\"',
+          8: "\\b",
+          12: "\\f",
+          10: "\\n",
+          13: "\\r",
+          9: "\\t"
+        };
+
+        // Internal: Converts `value` into a zero-padded string such that its
+        // length is at least equal to `width`. The `width` must be <= 6.
+        var leadingZeroes = "000000";
+        var toPaddedString = function (width, value) {
+          // The `|| 0` expression is necessary to work around a bug in
+          // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
+          return (leadingZeroes + (value || 0)).slice(-width);
+        };
+
+        // Internal: Double-quotes a string `value`, replacing all ASCII control
+        // characters (characters with code unit values between 0 and 31) with
+        // their escaped equivalents. This is an implementation of the
+        // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
+        var unicodePrefix = "\\u00";
+        var quote = function (value) {
+          var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;
+          var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value);
+          for (; index < length; index++) {
+            var charCode = value.charCodeAt(index);
+            // If the character is a control character, append its Unicode or
+            // shorthand escape sequence; otherwise, append the character as-is.
+            switch (charCode) {
+              case 8: case 9: case 10: case 12: case 13: case 34: case 92:
+                result += Escapes[charCode];
+                break;
+              default:
+                if (charCode < 32) {
+                  result += unicodePrefix + toPaddedString(2, charCode.toString(16));
+                  break;
+                }
+                result += useCharIndex ? symbols[index] : value.charAt(index);
+            }
+          }
+          return result + '"';
+        };
+
+        // Internal: Recursively serializes an object. Implements the
+        // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
+        var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
+          var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
+          try {
+            // Necessary for host object support.
+            value = object[property];
+          } catch (exception) {}
+          if (typeof value == "object" && value) {
+            className = getClass.call(value);
+            if (className == dateClass && !isProperty.call(value, "toJSON")) {
+              if (value > -1 / 0 && value < 1 / 0) {
+                // Dates are serialized according to the `Date#toJSON` method
+                // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
+                // for the ISO 8601 date time string format.
+                if (getDay) {
+                  // Manually compute the year, month, date, hours, minutes,
+                  // seconds, and milliseconds if the `getUTC*` methods are
+                  // buggy. Adapted from @Yaffle's `date-shim` project.
+                  date = floor(value / 864e5);
+                  for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
+                  for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
+                  date = 1 + date - getDay(year, month);
+                  // The `time` value specifies the time within the day (see ES
+                  // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
+                  // to compute `A modulo B`, as the `%` operator does not
+                  // correspond to the `modulo` operation for negative numbers.
+                  time = (value % 864e5 + 864e5) % 864e5;
+                  // The hours, minutes, seconds, and milliseconds are obtained by
+                  // decomposing the time within the day. See section 15.9.1.10.
+                  hours = floor(time / 36e5) % 24;
+                  minutes = floor(time / 6e4) % 60;
+                  seconds = floor(time / 1e3) % 60;
+                  milliseconds = time % 1e3;
+                } else {
+                  year = value.getUTCFullYear();
+                  month = value.getUTCMonth();
+                  date = value.getUTCDate();
+                  hours = value.getUTCHours();
+                  minutes = value.getUTCMinutes();
+                  seconds = value.getUTCSeconds();
+                  milliseconds = value.getUTCMilliseconds();
+                }
+                // Serialize extended years correctly.
+                value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
+                  "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
+                  // Months, dates, hours, minutes, and seconds should have two
+                  // digits; milliseconds should have three.
+                  "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
+                  // Milliseconds are optional in ES 5.0, but required in 5.1.
+                  "." + toPaddedString(3, milliseconds) + "Z";
+              } else {
+                value = null;
+              }
+            } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
+              // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
+              // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
+              // ignores all `toJSON` methods on these objects unless they are
+              // defined directly on an instance.
+              value = value.toJSON(property);
+            }
+          }
+          if (callback) {
+            // If a replacement function was provided, call it to obtain the value
+            // for serialization.
+            value = callback.call(object, property, value);
+          }
+          if (value === null) {
+            return "null";
+          }
+          className = getClass.call(value);
+          if (className == booleanClass) {
+            // Booleans are represented literally.
+            return "" + value;
+          } else if (className == numberClass) {
+            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
+            // `"null"`.
+            return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
+          } else if (className == stringClass) {
+            // Strings are double-quoted and escaped.
+            return quote("" + value);
+          }
+          // Recursively serialize objects and arrays.
+          if (typeof value == "object") {
+            // Check for cyclic structures. This is a linear search; performance
+            // is inversely proportional to the number of unique nested objects.
+            for (length = stack.length; length--;) {
+              if (stack[length] === value) {
+                // Cyclic structures cannot be serialized by `JSON.stringify`.
+                throw TypeError();
+              }
+            }
+            // Add the object to the stack of traversed objects.
+            stack.push(value);
+            results = [];
+            // Save the current indentation level and indent one additional level.
+            prefix = indentation;
+            indentation += whitespace;
+            if (className == arrayClass) {
+              // Recursively serialize array elements.
+              for (index = 0, length = value.length; index < length; index++) {
+                element = serialize(index, value, callback, properties, whitespace, indentation, stack);
+                results.push(element === undef ? "null" : element);
+              }
+              result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
+            } else {
+              // Recursively serialize object members. Members are selected from
+              // either a user-specified list of property names, or the object
+              // itself.
+              forEach(properties || value, function (property) {
+                var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
+                if (element !== undef) {
+                  // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
+                  // is not the empty string, let `member` {quote(property) + ":"}
+                  // be the concatenation of `member` and the `space` character."
+                  // The "`space` character" refers to the literal space
+                  // character, not the `space` {width} argument provided to
+                  // `JSON.stringify`.
+                  results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
+                }
+              });
+              result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
+            }
+            // Remove the object from the traversed object stack.
+            stack.pop();
+            return result;
+          }
+        };
+
+        // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
+        exports.stringify = function (source, filter, width) {
+          var whitespace, callback, properties, className;
+          if (objectTypes[typeof filter] && filter) {
+            if ((className = getClass.call(filter)) == functionClass) {
+              callback = filter;
+            } else if (className == arrayClass) {
+              // Convert the property names array into a makeshift set.
+              properties = {};
+              for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
+            }
+          }
+          if (width) {
+            if ((className = getClass.call(width)) == numberClass) {
+              // Convert the `width` to an integer and create a string containing
+              // `width` number of space characters.
+              if ((width -= width % 1) > 0) {
+                for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
+              }
+            } else if (className == stringClass) {
+              whitespace = width.length <= 10 ? width : width.slice(0, 10);
+            }
+          }
+          // Opera <= 7.54u2 discards the values associated with empty string keys
+          // (`""`) only if they are used directly within an object member list
+          // (e.g., `!("" in { "": 1})`).
+          return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
+        };
+      }
 
-  // If listening to data, and it has not explicitly been paused,
-  // then call resume to start the flow of data on the next tick.
-  if (ev === 'data' && false !== this._readableState.flowing) {
-    this.resume();
-  }
+      // Public: Parses a JSON source string.
+      if (!has("json-parse")) {
+        var fromCharCode = String.fromCharCode;
+
+        // Internal: A map of escaped control characters and their unescaped
+        // equivalents.
+        var Unescapes = {
+          92: "\\",
+          34: '"',
+          47: "/",
+          98: "\b",
+          116: "\t",
+          110: "\n",
+          102: "\f",
+          114: "\r"
+        };
+
+        // Internal: Stores the parser state.
+        var Index, Source;
+
+        // Internal: Resets the parser state and throws a `SyntaxError`.
+        var abort = function () {
+          Index = Source = null;
+          throw SyntaxError();
+        };
+
+        // Internal: Returns the next token, or `"$"` if the parser has reached
+        // the end of the source string. A token may be a string, number, `null`
+        // literal, or Boolean literal.
+        var lex = function () {
+          var source = Source, length = source.length, value, begin, position, isSigned, charCode;
+          while (Index < length) {
+            charCode = source.charCodeAt(Index);
+            switch (charCode) {
+              case 9: case 10: case 13: case 32:
+                // Skip whitespace tokens, including tabs, carriage returns, line
+                // feeds, and space characters.
+                Index++;
+                break;
+              case 123: case 125: case 91: case 93: case 58: case 44:
+                // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
+                // the current position.
+                value = charIndexBuggy ? source.charAt(Index) : source[Index];
+                Index++;
+                return value;
+              case 34:
+                // `"` delimits a JSON string; advance to the next character and
+                // begin parsing the string. String tokens are prefixed with the
+                // sentinel `@` character to distinguish them from punctuators and
+                // end-of-string tokens.
+                for (value = "@", Index++; Index < length;) {
+                  charCode = source.charCodeAt(Index);
+                  if (charCode < 32) {
+                    // Unescaped ASCII control characters (those with a code unit
+                    // less than the space character) are not permitted.
+                    abort();
+                  } else if (charCode == 92) {
+                    // A reverse solidus (`\`) marks the beginning of an escaped
+                    // control character (including `"`, `\`, and `/`) or Unicode
+                    // escape sequence.
+                    charCode = source.charCodeAt(++Index);
+                    switch (charCode) {
+                      case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
+                        // Revive escaped control characters.
+                        value += Unescapes[charCode];
+                        Index++;
+                        break;
+                      case 117:
+                        // `\u` marks the beginning of a Unicode escape sequence.
+                        // Advance to the first character and validate the
+                        // four-digit code point.
+                        begin = ++Index;
+                        for (position = Index + 4; Index < position; Index++) {
+                          charCode = source.charCodeAt(Index);
+                          // A valid sequence comprises four hexdigits (case-
+                          // insensitive) that form a single hexadecimal value.
+                          if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
+                            // Invalid Unicode escape sequence.
+                            abort();
+                          }
+                        }
+                        // Revive the escaped character.
+                        value += fromCharCode("0x" + source.slice(begin, Index));
+                        break;
+                      default:
+                        // Invalid escape sequence.
+                        abort();
+                    }
+                  } else {
+                    if (charCode == 34) {
+                      // An unescaped double-quote character marks the end of the
+                      // string.
+                      break;
+                    }
+                    charCode = source.charCodeAt(Index);
+                    begin = Index;
+                    // Optimize for the common case where a string is valid.
+                    while (charCode >= 32 && charCode != 92 && charCode != 34) {
+                      charCode = source.charCodeAt(++Index);
+                    }
+                    // Append the string as-is.
+                    value += source.slice(begin, Index);
+                  }
+                }
+                if (source.charCodeAt(Index) == 34) {
+                  // Advance to the next character and return the revived string.
+                  Index++;
+                  return value;
+                }
+                // Unterminated string.
+                abort();
+              default:
+                // Parse numbers and literals.
+                begin = Index;
+                // Advance past the negative sign, if one is specified.
+                if (charCode == 45) {
+                  isSigned = true;
+                  charCode = source.charCodeAt(++Index);
+                }
+                // Parse an integer or floating-point value.
+                if (charCode >= 48 && charCode <= 57) {
+                  // Leading zeroes are interpreted as octal literals.
+                  if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
+                    // Illegal octal literal.
+                    abort();
+                  }
+                  isSigned = false;
+                  // Parse the integer component.
+                  for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
+                  // Floats cannot contain a leading decimal point; however, this
+                  // case is already accounted for by the parser.
+                  if (source.charCodeAt(Index) == 46) {
+                    position = ++Index;
+                    // Parse the decimal component.
+                    for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
+                    if (position == Index) {
+                      // Illegal trailing decimal.
+                      abort();
+                    }
+                    Index = position;
+                  }
+                  // Parse exponents. The `e` denoting the exponent is
+                  // case-insensitive.
+                  charCode = source.charCodeAt(Index);
+                  if (charCode == 101 || charCode == 69) {
+                    charCode = source.charCodeAt(++Index);
+                    // Skip past the sign following the exponent, if one is
+                    // specified.
+                    if (charCode == 43 || charCode == 45) {
+                      Index++;
+                    }
+                    // Parse the exponential component.
+                    for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
+                    if (position == Index) {
+                      // Illegal empty exponent.
+                      abort();
+                    }
+                    Index = position;
+                  }
+                  // Coerce the parsed value to a JavaScript number.
+                  return +source.slice(begin, Index);
+                }
+                // A negative sign may only precede numbers.
+                if (isSigned) {
+                  abort();
+                }
+                // `true`, `false`, and `null` literals.
+                if (source.slice(Index, Index + 4) == "true") {
+                  Index += 4;
+                  return true;
+                } else if (source.slice(Index, Index + 5) == "false") {
+                  Index += 5;
+                  return false;
+                } else if (source.slice(Index, Index + 4) == "null") {
+                  Index += 4;
+                  return null;
+                }
+                // Unrecognized token.
+                abort();
+            }
+          }
+          // Return the sentinel `$` character if the parser has reached the end
+          // of the source string.
+          return "$";
+        };
+
+        // Internal: Parses a JSON `value` token.
+        var get = function (value) {
+          var results, hasMembers;
+          if (value == "$") {
+            // Unexpected end of input.
+            abort();
+          }
+          if (typeof value == "string") {
+            if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
+              // Remove the sentinel `@` character.
+              return value.slice(1);
+            }
+            // Parse object and array literals.
+            if (value == "[") {
+              // Parses a JSON array, returning a new JavaScript array.
+              results = [];
+              for (;; hasMembers || (hasMembers = true)) {
+                value = lex();
+                // A closing square bracket marks the end of the array literal.
+                if (value == "]") {
+                  break;
+                }
+                // If the array literal contains elements, the current token
+                // should be a comma separating the previous element from the
+                // next.
+                if (hasMembers) {
+                  if (value == ",") {
+                    value = lex();
+                    if (value == "]") {
+                      // Unexpected trailing `,` in array literal.
+                      abort();
+                    }
+                  } else {
+                    // A `,` must separate each array element.
+                    abort();
+                  }
+                }
+                // Elisions and leading commas are not permitted.
+                if (value == ",") {
+                  abort();
+                }
+                results.push(get(value));
+              }
+              return results;
+            } else if (value == "{") {
+              // Parses a JSON object, returning a new JavaScript object.
+              results = {};
+              for (;; hasMembers || (hasMembers = true)) {
+                value = lex();
+                // A closing curly brace marks the end of the object literal.
+                if (value == "}") {
+                  break;
+                }
+                // If the object literal contains members, the current token
+                // should be a comma separator.
+                if (hasMembers) {
+                  if (value == ",") {
+                    value = lex();
+                    if (value == "}") {
+                      // Unexpected trailing `,` in object literal.
+                      abort();
+                    }
+                  } else {
+                    // A `,` must separate each object member.
+                    abort();
+                  }
+                }
+                // Leading commas are not permitted, object property names must be
+                // double-quoted strings, and a `:` must separate each property
+                // name and value.
+                if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
+                  abort();
+                }
+                results[value.slice(1)] = get(lex());
+              }
+              return results;
+            }
+            // Unexpected token encountered.
+            abort();
+          }
+          return value;
+        };
 
-  if (ev === 'readable' && this.readable) {
-    var state = this._readableState;
-    if (!state.readableListening) {
-      state.readableListening = true;
-      state.emittedReadable = false;
-      state.needReadable = true;
-      if (!state.reading) {
-        var self = this;
-        process.nextTick(function() {
-          debug('readable nexttick read 0');
-          self.read(0);
-        });
-      } else if (state.length) {
-        emitReadable(this, state);
+        // Internal: Updates a traversed object member.
+        var update = function (source, property, callback) {
+          var element = walk(source, property, callback);
+          if (element === undef) {
+            delete source[property];
+          } else {
+            source[property] = element;
+          }
+        };
+
+        // Internal: Recursively traverses a parsed JSON object, invoking the
+        // `callback` function for each value. This is an implementation of the
+        // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
+        var walk = function (source, property, callback) {
+          var value = source[property], length;
+          if (typeof value == "object" && value) {
+            // `forEach` can't be used to traverse an array in Opera <= 8.54
+            // because its `Object#hasOwnProperty` implementation returns `false`
+            // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
+            if (getClass.call(value) == arrayClass) {
+              for (length = value.length; length--;) {
+                update(value, length, callback);
+              }
+            } else {
+              forEach(value, function (property) {
+                update(value, property, callback);
+              });
+            }
+          }
+          return callback.call(source, property, value);
+        };
+
+        // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
+        exports.parse = function (source, callback) {
+          var result, value;
+          Index = 0;
+          Source = "" + source;
+          result = get(lex());
+          // If a JSON string contains multiple tokens, it is invalid.
+          if (lex() != "$") {
+            abort();
+          }
+          // Reset the parser state.
+          Index = Source = null;
+          return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
+        };
       }
     }
+
+    exports["runInContext"] = runInContext;
+    return exports;
   }
 
-  return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
+  if (freeExports && !isLoader) {
+    // Export for CommonJS environments.
+    runInContext(root, freeExports);
+  } else {
+    // Export for web browsers and JavaScript engines.
+    var nativeJSON = root.JSON,
+        previousJSON = root["JSON3"],
+        isRestored = false;
+
+    var JSON3 = runInContext(root, (root["JSON3"] = {
+      // Public: Restores the original value of the global `JSON` object and
+      // returns a reference to the `JSON3` object.
+      "noConflict": function () {
+        if (!isRestored) {
+          isRestored = true;
+          root.JSON = nativeJSON;
+          root["JSON3"] = previousJSON;
+          nativeJSON = previousJSON = null;
+        }
+        return JSON3;
+      }
+    }));
 
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function() {
-  var state = this._readableState;
-  if (!state.flowing) {
-    debug('resume');
-    state.flowing = true;
-    if (!state.reading) {
-      debug('resume read 0');
-      this.read(0);
-    }
-    resume(this, state);
+    root.JSON = {
+      "parse": JSON3.parse,
+      "stringify": JSON3.stringify
+    };
   }
-  return this;
-};
 
-function resume(stream, state) {
-  if (!state.resumeScheduled) {
-    state.resumeScheduled = true;
-    process.nextTick(function() {
-      resume_(stream, state);
+  // Export for asynchronous module loaders.
+  if (isLoader) {
+    define(function () {
+      return JSON3;
     });
   }
-}
-
-function resume_(stream, state) {
-  state.resumeScheduled = false;
-  stream.emit('resume');
-  flow(stream);
-  if (state.flowing && !state.reading)
-    stream.read(0);
-}
+}).call(this);
 
-Readable.prototype.pause = function() {
-  debug('call pause flowing=%j', this._readableState.flowing);
-  if (false !== this._readableState.flowing) {
-    debug('pause');
-    this._readableState.flowing = false;
-    this.emit('pause');
-  }
-  return this;
-};
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],55:[function(require,module,exports){
+/**
+ * lodash 3.2.0 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+var baseCopy = require('lodash._basecopy'),
+    keys = require('lodash.keys');
 
-function flow(stream) {
-  var state = stream._readableState;
-  debug('flow', state.flowing);
-  if (state.flowing) {
-    do {
-      var chunk = stream.read();
-    } while (null !== chunk && state.flowing);
-  }
+/**
+ * The base implementation of `_.assign` without support for argument juggling,
+ * multiple sources, and `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @returns {Object} Returns `object`.
+ */
+function baseAssign(object, source) {
+  return source == null
+    ? object
+    : baseCopy(source, keys(source), object);
 }
 
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function(stream) {
-  var state = this._readableState;
-  var paused = false;
-
-  var self = this;
-  stream.on('end', function() {
-    debug('wrapped end');
-    if (state.decoder && !state.ended) {
-      var chunk = state.decoder.end();
-      if (chunk && chunk.length)
-        self.push(chunk);
-    }
+module.exports = baseAssign;
 
-    self.push(null);
-  });
+},{"lodash._basecopy":56,"lodash.keys":63}],56:[function(require,module,exports){
+/**
+ * lodash 3.0.1 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
 
-  stream.on('data', function(chunk) {
-    debug('wrapped data');
-    if (state.decoder)
-      chunk = state.decoder.write(chunk);
-    if (!chunk || !state.objectMode && !chunk.length)
-      return;
+/**
+ * Copies properties of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy properties from.
+ * @param {Array} props The property names to copy.
+ * @param {Object} [object={}] The object to copy properties to.
+ * @returns {Object} Returns `object`.
+ */
+function baseCopy(source, props, object) {
+  object || (object = {});
 
-    var ret = self.push(chunk);
-    if (!ret) {
-      paused = true;
-      stream.pause();
-    }
-  });
+  var index = -1,
+      length = props.length;
 
-  // proxy all the other methods.
-  // important when wrapping filters and duplexes.
-  for (var i in stream) {
-    if (util.isFunction(stream[i]) && util.isUndefined(this[i])) {
-      this[i] = function(method) { return function() {
-        return stream[method].apply(stream, arguments);
-      }}(i);
-    }
+  while (++index < length) {
+    var key = props[index];
+    object[key] = source[key];
   }
+  return object;
+}
 
-  // proxy certain important events.
-  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
-  forEach(events, function(ev) {
-    stream.on(ev, self.emit.bind(self, ev));
-  });
+module.exports = baseCopy;
 
-  // when we try to consume some more bytes, simply unpause the
-  // underlying stream.
-  self._read = function(n) {
-    debug('wrapped _read', n);
-    if (paused) {
-      paused = false;
-      stream.resume();
+},{}],57:[function(require,module,exports){
+/**
+ * lodash 3.0.3 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+
+/**
+ * The base implementation of `_.create` without support for assigning
+ * properties to the created object.
+ *
+ * @private
+ * @param {Object} prototype The object to inherit from.
+ * @returns {Object} Returns the new object.
+ */
+var baseCreate = (function() {
+  function object() {}
+  return function(prototype) {
+    if (isObject(prototype)) {
+      object.prototype = prototype;
+      var result = new object;
+      object.prototype = undefined;
     }
+    return result || {};
   };
+}());
 
-  return self;
-};
+/**
+ * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
+}
 
+module.exports = baseCreate;
 
+},{}],58:[function(require,module,exports){
+/**
+ * lodash 3.9.1 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
 
-// exposed for testing purposes only.
-Readable._fromList = fromList;
+/** `Object#toString` result references. */
+var funcTag = '[object Function]';
 
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-function fromList(n, state) {
-  var list = state.buffer;
-  var length = state.length;
-  var stringMode = !!state.decoder;
-  var objectMode = !!state.objectMode;
-  var ret;
+/** Used to detect host constructors (Safari > 5). */
+var reIsHostCtor = /^\[object .+?Constructor\]$/;
 
-  // nothing in the list, definitely empty.
-  if (list.length === 0)
-    return null;
+/**
+ * Checks if `value` is object-like.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ */
+function isObjectLike(value) {
+  return !!value && typeof value == 'object';
+}
 
-  if (length === 0)
-    ret = null;
-  else if (objectMode)
-    ret = list.shift();
-  else if (!n || n >= length) {
-    // read it all, truncate the array.
-    if (stringMode)
-      ret = list.join('');
-    else
-      ret = Buffer.concat(list, length);
-    list.length = 0;
-  } else {
-    // read just some of it.
-    if (n < list[0].length) {
-      // just take a part of the first list item.
-      // slice is the same for buffers and strings.
-      var buf = list[0];
-      ret = buf.slice(0, n);
-      list[0] = buf.slice(n);
-    } else if (n === list[0].length) {
-      // first list is a perfect match
-      ret = list.shift();
-    } else {
-      // complex case.
-      // we have enough to cover it, but it spans past the first buffer.
-      if (stringMode)
-        ret = '';
-      else
-        ret = new Buffer(n);
-
-      var c = 0;
-      for (var i = 0, l = list.length; i < l && c < n; i++) {
-        var buf = list[0];
-        var cpy = Math.min(n - c, buf.length);
-
-        if (stringMode)
-          ret += buf.slice(0, cpy);
-        else
-          buf.copy(ret, c, 0, cpy);
-
-        if (cpy < buf.length)
-          list[0] = buf.slice(cpy);
-        else
-          list.shift();
-
-        c += cpy;
-      }
-    }
-  }
+/** Used for native method references. */
+var objectProto = Object.prototype;
 
-  return ret;
-}
+/** Used to resolve the decompiled source of functions. */
+var fnToString = Function.prototype.toString;
 
-function endReadable(stream) {
-  var state = stream._readableState;
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
 
-  // If we get here before consuming all the bytes, then that is a
-  // bug in node.  Should never happen.
-  if (state.length > 0)
-    throw new Error('endReadable called on non-empty stream');
+/**
+ * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var objToString = objectProto.toString;
 
-  if (!state.endEmitted) {
-    state.ended = true;
-    process.nextTick(function() {
-      // Check that we didn't get one last unshift.
-      if (!state.endEmitted && state.length === 0) {
-        state.endEmitted = true;
-        stream.readable = false;
-        stream.emit('end');
-      }
-    });
-  }
+/** Used to detect if a method is native. */
+var reIsNative = RegExp('^' +
+  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
+  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
+);
+
+/**
+ * Gets the native function at `key` of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the method to get.
+ * @returns {*} Returns the function if it's native, else `undefined`.
+ */
+function getNative(object, key) {
+  var value = object == null ? undefined : object[key];
+  return isNative(value) ? value : undefined;
 }
 
-function forEach (xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
-  }
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in older versions of Chrome and Safari which return 'function' for regexes
+  // and Safari 8 equivalents which return 'object' for typed array constructors.
+  return isObject(value) && objToString.call(value) == funcTag;
 }
 
-function indexOf (xs, x) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    if (xs[i] === x) return i;
+/**
+ * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
+}
+
+/**
+ * Checks if `value` is a native function.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
+ * @example
+ *
+ * _.isNative(Array.prototype.push);
+ * // => true
+ *
+ * _.isNative(_);
+ * // => false
+ */
+function isNative(value) {
+  if (value == null) {
+    return false;
   }
-  return -1;
+  if (isFunction(value)) {
+    return reIsNative.test(fnToString.call(value));
+  }
+  return isObjectLike(value) && reIsHostCtor.test(value);
 }
 
-}).call(this,require('_process'))
-},{"./_stream_duplex":53,"_process":51,"buffer":43,"core-util-is":58,"events":47,"inherits":48,"isarray":49,"stream":63,"string_decoder/":64,"util":42}],56:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-// a transform stream is a readable/writable stream where you do
-// something with the data.  Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored.  (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation.  For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes.  When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up.  When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer.  When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks.  If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk.  However,
-// a pathological inflate type of transform can cause excessive buffering
-// here.  For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output.  In this case, you could write a very small
-// amount of input, and end up with a very large amount of output.  In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform.  A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
-
-module.exports = Transform;
+module.exports = getNative;
 
-var Duplex = require('./_stream_duplex');
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+},{}],59:[function(require,module,exports){
+/**
+ * lodash 3.0.9 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
 
-util.inherits(Transform, Duplex);
+/** Used to detect unsigned integer values. */
+var reIsUint = /^\d+$/;
 
+/**
+ * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
+ * of an array-like value.
+ */
+var MAX_SAFE_INTEGER = 9007199254740991;
 
-function TransformState(options, stream) {
-  this.afterTransform = function(er, data) {
-    return afterTransform(stream, er, data);
+/**
+ * The base implementation of `_.property` without support for deep paths.
+ *
+ * @private
+ * @param {string} key The key of the property to get.
+ * @returns {Function} Returns the new function.
+ */
+function baseProperty(key) {
+  return function(object) {
+    return object == null ? undefined : object[key];
   };
+}
 
-  this.needTransform = false;
-  this.transforming = false;
-  this.writecb = null;
-  this.writechunk = null;
+/**
+ * Gets the "length" property value of `object`.
+ *
+ * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
+ * that affects Safari on at least iOS 8.1-8.3 ARM64.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {*} Returns the "length" value.
+ */
+var getLength = baseProperty('length');
+
+/**
+ * Checks if `value` is array-like.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ */
+function isArrayLike(value) {
+  return value != null && isLength(getLength(value));
 }
 
-function afterTransform(stream, er, data) {
-  var ts = stream._transformState;
-  ts.transforming = false;
+/**
+ * Checks if `value` is a valid array-like index.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+ * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+ */
+function isIndex(value, length) {
+  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
+  length = length == null ? MAX_SAFE_INTEGER : length;
+  return value > -1 && value % 1 == 0 && value < length;
+}
 
-  var cb = ts.writecb;
+/**
+ * Checks if the provided arguments are from an iteratee call.
+ *
+ * @private
+ * @param {*} value The potential iteratee value argument.
+ * @param {*} index The potential iteratee index or key argument.
+ * @param {*} object The potential iteratee object argument.
+ * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
+ */
+function isIterateeCall(value, index, object) {
+  if (!isObject(object)) {
+    return false;
+  }
+  var type = typeof index;
+  if (type == 'number'
+      ? (isArrayLike(object) && isIndex(index, object.length))
+      : (type == 'string' && index in object)) {
+    var other = object[index];
+    return value === value ? (value === other) : (other !== other);
+  }
+  return false;
+}
 
-  if (!cb)
-    return stream.emit('error', new Error('no writecb in Transform class'));
+/**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ */
+function isLength(value) {
+  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+}
 
-  ts.writechunk = null;
-  ts.writecb = null;
+/**
+ * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
+}
 
-  if (!util.isNullOrUndefined(data))
-    stream.push(data);
+module.exports = isIterateeCall;
 
-  if (cb)
-    cb(er);
+},{}],60:[function(require,module,exports){
+/**
+ * lodash 3.1.1 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+var baseAssign = require('lodash._baseassign'),
+    baseCreate = require('lodash._basecreate'),
+    isIterateeCall = require('lodash._isiterateecall');
 
-  var rs = stream._readableState;
-  rs.reading = false;
-  if (rs.needReadable || rs.length < rs.highWaterMark) {
-    stream._read(rs.highWaterMark);
+/**
+ * Creates an object that inherits from the given `prototype` object. If a
+ * `properties` object is provided its own enumerable properties are assigned
+ * to the created object.
+ *
+ * @static
+ * @memberOf _
+ * @category Object
+ * @param {Object} prototype The object to inherit from.
+ * @param {Object} [properties] The properties to assign to the object.
+ * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * function Shape() {
+ *   this.x = 0;
+ *   this.y = 0;
+ * }
+ *
+ * function Circle() {
+ *   Shape.call(this);
+ * }
+ *
+ * Circle.prototype = _.create(Shape.prototype, {
+ *   'constructor': Circle
+ * });
+ *
+ * var circle = new Circle;
+ * circle instanceof Circle;
+ * // => true
+ *
+ * circle instanceof Shape;
+ * // => true
+ */
+function create(prototype, properties, guard) {
+  var result = baseCreate(prototype);
+  if (guard && isIterateeCall(prototype, properties, guard)) {
+    properties = undefined;
   }
+  return properties ? baseAssign(result, properties) : result;
 }
 
+module.exports = create;
 
-function Transform(options) {
-  if (!(this instanceof Transform))
-    return new Transform(options);
+},{"lodash._baseassign":55,"lodash._basecreate":57,"lodash._isiterateecall":59}],61:[function(require,module,exports){
+/**
+ * lodash (Custom Build) <https://lodash.com/>
+ * Build: `lodash modularize exports="npm" -o ./`
+ * Copyright jQuery Foundation and other contributors <https://jquery.org/>
+ * Released under MIT license <https://lodash.com/license>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ */
 
-  Duplex.call(this, options);
+/** Used as references for various `Number` constants. */
+var MAX_SAFE_INTEGER = 9007199254740991;
 
-  this._transformState = new TransformState(options, this);
+/** `Object#toString` result references. */
+var argsTag = '[object Arguments]',
+    funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]';
 
-  // when the writable side finishes, then flush out anything remaining.
-  var stream = this;
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
 
-  // start out asking for a readable event once data is transformed.
-  this._readableState.needReadable = true;
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
 
-  // we have implemented the _read method, and done the other things
-  // that Readable wants before the first _read call, so unset the
-  // sync guard flag.
-  this._readableState.sync = false;
+/**
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var objectToString = objectProto.toString;
 
-  this.once('prefinish', function() {
-    if (util.isFunction(this._flush))
-      this._flush(function(er) {
-        done(stream, er);
-      });
-    else
-      done(stream);
-  });
+/** Built-in value references. */
+var propertyIsEnumerable = objectProto.propertyIsEnumerable;
+
+/**
+ * Checks if `value` is likely an `arguments` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ *  else `false`.
+ * @example
+ *
+ * _.isArguments(function() { return arguments; }());
+ * // => true
+ *
+ * _.isArguments([1, 2, 3]);
+ * // => false
+ */
+function isArguments(value) {
+  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
+  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
+    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
 }
 
-Transform.prototype.push = function(chunk, encoding) {
-  this._transformState.needTransform = false;
-  return Duplex.prototype.push.call(this, chunk, encoding);
-};
+/**
+ * Checks if `value` is array-like. A value is considered array-like if it's
+ * not a function and has a `value.length` that's an integer greater than or
+ * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ * @example
+ *
+ * _.isArrayLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLike(document.body.children);
+ * // => true
+ *
+ * _.isArrayLike('abc');
+ * // => true
+ *
+ * _.isArrayLike(_.noop);
+ * // => false
+ */
+function isArrayLike(value) {
+  return value != null && isLength(value.length) && !isFunction(value);
+}
 
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side.  You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk.  If you pass
-// an error, then that'll put the hurt on the whole operation.  If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function(chunk, encoding, cb) {
-  throw new Error('not implemented');
-};
+/**
+ * This method is like `_.isArrayLike` except that it also checks if `value`
+ * is an object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array-like object,
+ *  else `false`.
+ * @example
+ *
+ * _.isArrayLikeObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLikeObject(document.body.children);
+ * // => true
+ *
+ * _.isArrayLikeObject('abc');
+ * // => false
+ *
+ * _.isArrayLikeObject(_.noop);
+ * // => false
+ */
+function isArrayLikeObject(value) {
+  return isObjectLike(value) && isArrayLike(value);
+}
 
-Transform.prototype._write = function(chunk, encoding, cb) {
-  var ts = this._transformState;
-  ts.writecb = cb;
-  ts.writechunk = chunk;
-  ts.writeencoding = encoding;
-  if (!ts.transforming) {
-    var rs = this._readableState;
-    if (ts.needTransform ||
-        rs.needReadable ||
-        rs.length < rs.highWaterMark)
-      this._read(rs.highWaterMark);
-  }
-};
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a function, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in Safari 8-9 which returns 'object' for typed array and other constructors.
+  var tag = isObject(value) ? objectToString.call(value) : '';
+  return tag == funcTag || tag == genTag;
+}
 
-// Doesn't matter what the args are here.
-// _transform does all the work.
-// That we got here means that the readable side wants more data.
-Transform.prototype._read = function(n) {
-  var ts = this._transformState;
+/**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This method is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @example
+ *
+ * _.isLength(3);
+ * // => true
+ *
+ * _.isLength(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isLength(Infinity);
+ * // => false
+ *
+ * _.isLength('3');
+ * // => false
+ */
+function isLength(value) {
+  return typeof value == 'number' &&
+    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+}
 
-  if (!util.isNull(ts.writechunk) && ts.writecb && !ts.transforming) {
-    ts.transforming = true;
-    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
-  } else {
-    // mark that we need a transform, so that any data that comes in
-    // will get processed, now that we've asked for it.
-    ts.needTransform = true;
-  }
-};
+/**
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(_.noop);
+ * // => true
+ *
+ * _.isObject(null);
+ * // => false
+ */
+function isObject(value) {
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
+}
 
+/**
+ * Checks if `value` is object-like. A value is object-like if it's not `null`
+ * and has a `typeof` result of "object".
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ * @example
+ *
+ * _.isObjectLike({});
+ * // => true
+ *
+ * _.isObjectLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isObjectLike(_.noop);
+ * // => false
+ *
+ * _.isObjectLike(null);
+ * // => false
+ */
+function isObjectLike(value) {
+  return !!value && typeof value == 'object';
+}
 
-function done(stream, er) {
-  if (er)
-    return stream.emit('error', er);
+module.exports = isArguments;
 
-  // if there's nothing in the write buffer, then that means
-  // that nothing more will ever be provided
-  var ws = stream._writableState;
-  var ts = stream._transformState;
+},{}],62:[function(require,module,exports){
+/**
+ * lodash 3.0.4 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
 
-  if (ws.length)
-    throw new Error('calling transform done when ws.length != 0');
+/** `Object#toString` result references. */
+var arrayTag = '[object Array]',
+    funcTag = '[object Function]';
 
-  if (ts.transforming)
-    throw new Error('calling transform done when still transforming');
+/** Used to detect host constructors (Safari > 5). */
+var reIsHostCtor = /^\[object .+?Constructor\]$/;
 
-  return stream.push(null);
+/**
+ * Checks if `value` is object-like.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ */
+function isObjectLike(value) {
+  return !!value && typeof value == 'object';
 }
 
-},{"./_stream_duplex":53,"core-util-is":58,"inherits":48}],57:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, cb), and it'll handle all
-// the drain event emission and buffering.
-
-module.exports = Writable;
+/** Used for native method references. */
+var objectProto = Object.prototype;
 
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+/** Used to resolve the decompiled source of functions. */
+var fnToString = Function.prototype.toString;
 
-Writable.WritableState = WritableState;
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
 
+/**
+ * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var objToString = objectProto.toString;
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+/** Used to detect if a method is native. */
+var reIsNative = RegExp('^' +
+  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
+  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
+);
 
-var Stream = require('stream');
+/* Native method references for those with the same name as other `lodash` methods. */
+var nativeIsArray = getNative(Array, 'isArray');
 
-util.inherits(Writable, Stream);
+/**
+ * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
+ * of an array-like value.
+ */
+var MAX_SAFE_INTEGER = 9007199254740991;
 
-function WriteReq(chunk, encoding, cb) {
-  this.chunk = chunk;
-  this.encoding = encoding;
-  this.callback = cb;
+/**
+ * Gets the native function at `key` of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the method to get.
+ * @returns {*} Returns the function if it's native, else `undefined`.
+ */
+function getNative(object, key) {
+  var value = object == null ? undefined : object[key];
+  return isNative(value) ? value : undefined;
 }
 
-function WritableState(options, stream) {
-  var Duplex = require('./_stream_duplex');
-
-  options = options || {};
-
-  // the point at which write() starts returning false
-  // Note: 0 is a valid value, means that we always return false if
-  // the entire buffer is not flushed immediately on write()
-  var hwm = options.highWaterMark;
-  var defaultHwm = options.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
+/**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ */
+function isLength(value) {
+  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+}
 
-  // object stream flag to indicate whether or not this stream
-  // contains buffers or objects.
-  this.objectMode = !!options.objectMode;
+/**
+ * Checks if `value` is classified as an `Array` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @example
+ *
+ * _.isArray([1, 2, 3]);
+ * // => true
+ *
+ * _.isArray(function() { return arguments; }());
+ * // => false
+ */
+var isArray = nativeIsArray || function(value) {
+  return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
+};
 
-  if (stream instanceof Duplex)
-    this.objectMode = this.objectMode || !!options.writableObjectMode;
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in older versions of Chrome and Safari which return 'function' for regexes
+  // and Safari 8 equivalents which return 'object' for typed array constructors.
+  return isObject(value) && objToString.call(value) == funcTag;
+}
 
-  // cast to ints.
-  this.highWaterMark = ~~this.highWaterMark;
+/**
+ * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
+}
 
-  this.needDrain = false;
-  // at the start of calling end()
-  this.ending = false;
-  // when end() has been called, and returned
-  this.ended = false;
-  // when 'finish' is emitted
-  this.finished = false;
+/**
+ * Checks if `value` is a native function.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
+ * @example
+ *
+ * _.isNative(Array.prototype.push);
+ * // => true
+ *
+ * _.isNative(_);
+ * // => false
+ */
+function isNative(value) {
+  if (value == null) {
+    return false;
+  }
+  if (isFunction(value)) {
+    return reIsNative.test(fnToString.call(value));
+  }
+  return isObjectLike(value) && reIsHostCtor.test(value);
+}
 
-  // should we decode strings into buffers before passing to _write?
-  // this is here so that some node-core streams can optimize string
-  // handling at a lower level.
-  var noDecode = options.decodeStrings === false;
-  this.decodeStrings = !noDecode;
+module.exports = isArray;
 
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
+},{}],63:[function(require,module,exports){
+/**
+ * lodash 3.1.2 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+var getNative = require('lodash._getnative'),
+    isArguments = require('lodash.isarguments'),
+    isArray = require('lodash.isarray');
 
-  // not an actual buffer we keep track of, but a measurement
-  // of how much we're waiting to get pushed to some underlying
-  // socket or file.
-  this.length = 0;
+/** Used to detect unsigned integer values. */
+var reIsUint = /^\d+$/;
 
-  // a flag to see when we're in the middle of a write.
-  this.writing = false;
+/** Used for native method references. */
+var objectProto = Object.prototype;
 
-  // when true all writes will be buffered until .uncork() call
-  this.corked = 0;
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
 
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
+/* Native method references for those with the same name as other `lodash` methods. */
+var nativeKeys = getNative(Object, 'keys');
 
-  // a flag to know if we're processing previously buffered items, which
-  // may call the _write() callback in the same tick, so that we don't
-  // end up in an overlapped onwrite situation.
-  this.bufferProcessing = false;
+/**
+ * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
+ * of an array-like value.
+ */
+var MAX_SAFE_INTEGER = 9007199254740991;
 
-  // the callback that's passed to _write(chunk,cb)
-  this.onwrite = function(er) {
-    onwrite(stream, er);
+/**
+ * The base implementation of `_.property` without support for deep paths.
+ *
+ * @private
+ * @param {string} key The key of the property to get.
+ * @returns {Function} Returns the new function.
+ */
+function baseProperty(key) {
+  return function(object) {
+    return object == null ? undefined : object[key];
   };
+}
 
-  // the callback that the user supplies to write(chunk,encoding,cb)
-  this.writecb = null;
-
-  // the amount that is being written when _write is called.
-  this.writelen = 0;
-
-  this.buffer = [];
+/**
+ * Gets the "length" property value of `object`.
+ *
+ * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
+ * that affects Safari on at least iOS 8.1-8.3 ARM64.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {*} Returns the "length" value.
+ */
+var getLength = baseProperty('length');
 
-  // number of pending user-supplied write callbacks
-  // this must be 0 before 'finish' can be emitted
-  this.pendingcb = 0;
+/**
+ * Checks if `value` is array-like.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ */
+function isArrayLike(value) {
+  return value != null && isLength(getLength(value));
+}
 
-  // emit prefinish if the only thing we're waiting for is _write cbs
-  // This is relevant for synchronous Transform streams
-  this.prefinished = false;
+/**
+ * Checks if `value` is a valid array-like index.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+ * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+ */
+function isIndex(value, length) {
+  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
+  length = length == null ? MAX_SAFE_INTEGER : length;
+  return value > -1 && value % 1 == 0 && value < length;
+}
 
-  // True if the error was already emitted and should not be thrown again
-  this.errorEmitted = false;
+/**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ */
+function isLength(value) {
+  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
 }
 
-function Writable(options) {
-  var Duplex = require('./_stream_duplex');
+/**
+ * A fallback implementation of `Object.keys` which creates an array of the
+ * own enumerable property names of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+function shimKeys(object) {
+  var props = keysIn(object),
+      propsLength = props.length,
+      length = propsLength && object.length;
 
-  // Writable ctor is applied to Duplexes, though they're not
-  // instanceof Writable, they're instanceof Readable.
-  if (!(this instanceof Writable) && !(this instanceof Duplex))
-    return new Writable(options);
+  var allowIndexes = !!length && isLength(length) &&
+    (isArray(object) || isArguments(object));
 
-  this._writableState = new WritableState(options, this);
+  var index = -1,
+      result = [];
 
-  // legacy.
-  this.writable = true;
+  while (++index < propsLength) {
+    var key = props[index];
+    if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
+      result.push(key);
+    }
+  }
+  return result;
+}
 
-  Stream.call(this);
+/**
+ * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
 }
 
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function() {
-  this.emit('error', new Error('Cannot pipe. Not readable.'));
+/**
+ * Creates an array of the own enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects. See the
+ * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
+ * for more details.
+ *
+ * @static
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ *   this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keys(new Foo);
+ * // => ['a', 'b'] (iteration order is not guaranteed)
+ *
+ * _.keys('hi');
+ * // => ['0', '1']
+ */
+var keys = !nativeKeys ? shimKeys : function(object) {
+  var Ctor = object == null ? undefined : object.constructor;
+  if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
+      (typeof object != 'function' && isArrayLike(object))) {
+    return shimKeys(object);
+  }
+  return isObject(object) ? nativeKeys(object) : [];
 };
 
+/**
+ * Creates an array of the own and inherited enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects.
+ *
+ * @static
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ *   this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keysIn(new Foo);
+ * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
+ */
+function keysIn(object) {
+  if (object == null) {
+    return [];
+  }
+  if (!isObject(object)) {
+    object = Object(object);
+  }
+  var length = object.length;
+  length = (length && isLength(length) &&
+    (isArray(object) || isArguments(object)) && length) || 0;
 
-function writeAfterEnd(stream, state, cb) {
-  var er = new Error('write after end');
-  // TODO: defer error events consistently everywhere, not just the cb
-  stream.emit('error', er);
-  process.nextTick(function() {
-    cb(er);
-  });
-}
+  var Ctor = object.constructor,
+      index = -1,
+      isProto = typeof Ctor == 'function' && Ctor.prototype === object,
+      result = Array(length),
+      skipIndexes = length > 0;
 
-// If we get something that is not a buffer, string, null, or undefined,
-// and we're not in objectMode, then that's an error.
-// Otherwise stream chunks are all considered to be of length=1, and the
-// watermarks determine how many objects to keep in the buffer, rather than
-// how many bytes or characters.
-function validChunk(stream, state, chunk, cb) {
-  var valid = true;
-  if (!util.isBuffer(chunk) &&
-      !util.isString(chunk) &&
-      !util.isNullOrUndefined(chunk) &&
-      !state.objectMode) {
-    var er = new TypeError('Invalid non-string/buffer chunk');
-    stream.emit('error', er);
-    process.nextTick(function() {
-      cb(er);
-    });
-    valid = false;
+  while (++index < length) {
+    result[index] = (index + '');
   }
-  return valid;
+  for (var key in object) {
+    if (!(skipIndexes && isIndex(key, length)) &&
+        !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
+      result.push(key);
+    }
+  }
+  return result;
 }
 
-Writable.prototype.write = function(chunk, encoding, cb) {
-  var state = this._writableState;
-  var ret = false;
+module.exports = keys;
 
-  if (util.isFunction(encoding)) {
-    cb = encoding;
-    encoding = null;
-  }
+},{"lodash._getnative":58,"lodash.isarguments":61,"lodash.isarray":62}],64:[function(require,module,exports){
+(function (process){
+var path = require('path');
+var fs = require('fs');
+var _0777 = parseInt('0777', 8);
 
-  if (util.isBuffer(chunk))
-    encoding = 'buffer';
-  else if (!encoding)
-    encoding = state.defaultEncoding;
+module.exports = mkdirP.mkdirp = mkdirP.mkdirP = mkdirP;
 
-  if (!util.isFunction(cb))
-    cb = function() {};
+function mkdirP (p, opts, f, made) {
+    if (typeof opts === 'function') {
+        f = opts;
+        opts = {};
+    }
+    else if (!opts || typeof opts !== 'object') {
+        opts = { mode: opts };
+    }
 
-  if (state.ended)
-    writeAfterEnd(this, state, cb);
-  else if (validChunk(this, state, chunk, cb)) {
-    state.pendingcb++;
-    ret = writeOrBuffer(this, state, chunk, encoding, cb);
-  }
+    var mode = opts.mode;
+    var xfs = opts.fs || fs;
 
-  return ret;
-};
+    if (mode === undefined) {
+        mode = _0777 & (~process.umask());
+    }
+    if (!made) made = null;
 
-Writable.prototype.cork = function() {
-  var state = this._writableState;
+    var cb = f || function () {};
+    p = path.resolve(p);
 
-  state.corked++;
-};
+    xfs.mkdir(p, mode, function (er) {
+        if (!er) {
+            made = made || p;
+            return cb(null, made);
+        }
+        switch (er.code) {
+            case 'ENOENT':
+                mkdirP(path.dirname(p), opts, function (er, made) {
+                    if (er) cb(er, made);
+                    else mkdirP(p, opts, cb, made);
+                });
+                break;
+
+            // In the case of any other error, just see if there's a dir
+            // there already.  If so, then hooray!  If not, then something
+            // is borked.
+            default:
+                xfs.stat(p, function (er2, stat) {
+                    // if the stat fails, then that's super weird.
+                    // let the original error be the failure reason.
+                    if (er2 || !stat.isDirectory()) cb(er, made)
+                    else cb(null, made);
+                });
+                break;
+        }
+    });
+}
 
-Writable.prototype.uncork = function() {
-  var state = this._writableState;
+mkdirP.sync = function sync (p, opts, made) {
+    if (!opts || typeof opts !== 'object') {
+        opts = { mode: opts };
+    }
 
-  if (state.corked) {
-    state.corked--;
+    var mode = opts.mode;
+    var xfs = opts.fs || fs;
 
-    if (!state.writing &&
-        !state.corked &&
-        !state.finished &&
-        !state.bufferProcessing &&
-        state.buffer.length)
-      clearBuffer(this, state);
-  }
-};
-
-function decodeChunk(state, chunk, encoding) {
-  if (!state.objectMode &&
-      state.decodeStrings !== false &&
-      util.isString(chunk)) {
-    chunk = new Buffer(chunk, encoding);
-  }
-  return chunk;
-}
-
-// if we're already writing something, then just put this
-// in the queue, and wait our turn.  Otherwise, call _write
-// If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, chunk, encoding, cb) {
-  chunk = decodeChunk(state, chunk, encoding);
-  if (util.isBuffer(chunk))
-    encoding = 'buffer';
-  var len = state.objectMode ? 1 : chunk.length;
+    if (mode === undefined) {
+        mode = _0777 & (~process.umask());
+    }
+    if (!made) made = null;
 
-  state.length += len;
+    p = path.resolve(p);
 
-  var ret = state.length < state.highWaterMark;
-  // we must ensure that previous needDrain will not be reset to false.
-  if (!ret)
-    state.needDrain = true;
+    try {
+        xfs.mkdirSync(p, mode);
+        made = made || p;
+    }
+    catch (err0) {
+        switch (err0.code) {
+            case 'ENOENT' :
+                made = sync(path.dirname(p), opts, made);
+                sync(p, opts, made);
+                break;
+
+            // In the case of any other error, just see if there's a dir
+            // there already.  If so, then hooray!  If not, then something
+            // is borked.
+            default:
+                var stat;
+                try {
+                    stat = xfs.statSync(p);
+                }
+                catch (err1) {
+                    throw err0;
+                }
+                if (!stat.isDirectory()) throw err0;
+                break;
+        }
+    }
 
-  if (state.writing || state.corked)
-    state.buffer.push(new WriteReq(chunk, encoding, cb));
-  else
-    doWrite(stream, state, false, len, chunk, encoding, cb);
+    return made;
+};
 
-  return ret;
-}
+}).call(this,require('_process'))
+},{"_process":67,"fs":42,"path":42}],65:[function(require,module,exports){
+exports.endianness = function () { return 'LE' };
 
-function doWrite(stream, state, writev, len, chunk, encoding, cb) {
-  state.writelen = len;
-  state.writecb = cb;
-  state.writing = true;
-  state.sync = true;
-  if (writev)
-    stream._writev(chunk, state.onwrite);
-  else
-    stream._write(chunk, encoding, state.onwrite);
-  state.sync = false;
-}
+exports.hostname = function () {
+    if (typeof location !== 'undefined') {
+        return location.hostname
+    }
+    else return '';
+};
 
-function onwriteError(stream, state, sync, er, cb) {
-  if (sync)
-    process.nextTick(function() {
-      state.pendingcb--;
-      cb(er);
-    });
-  else {
-    state.pendingcb--;
-    cb(er);
-  }
+exports.loadavg = function () { return [] };
 
-  stream._writableState.errorEmitted = true;
-  stream.emit('error', er);
-}
+exports.uptime = function () { return 0 };
 
-function onwriteStateUpdate(state) {
-  state.writing = false;
-  state.writecb = null;
-  state.length -= state.writelen;
-  state.writelen = 0;
-}
+exports.freemem = function () {
+    return Number.MAX_VALUE;
+};
 
-function onwrite(stream, er) {
-  var state = stream._writableState;
-  var sync = state.sync;
-  var cb = state.writecb;
+exports.totalmem = function () {
+    return Number.MAX_VALUE;
+};
 
-  onwriteStateUpdate(state);
+exports.cpus = function () { return [] };
 
-  if (er)
-    onwriteError(stream, state, sync, er, cb);
-  else {
-    // Check if we're actually ready to finish, but don't emit yet
-    var finished = needFinish(stream, state);
+exports.type = function () { return 'Browser' };
 
-    if (!finished &&
-        !state.corked &&
-        !state.bufferProcessing &&
-        state.buffer.length) {
-      clearBuffer(stream, state);
+exports.release = function () {
+    if (typeof navigator !== 'undefined') {
+        return navigator.appVersion;
     }
+    return '';
+};
 
-    if (sync) {
-      process.nextTick(function() {
-        afterWrite(stream, state, finished, cb);
-      });
-    } else {
-      afterWrite(stream, state, finished, cb);
-    }
-  }
-}
+exports.networkInterfaces
+= exports.getNetworkInterfaces
+= function () { return {} };
 
-function afterWrite(stream, state, finished, cb) {
-  if (!finished)
-    onwriteDrain(stream, state);
-  state.pendingcb--;
-  cb();
-  finishMaybe(stream, state);
-}
+exports.arch = function () { return 'javascript' };
 
-// Must force callback to be called on nextTick, so that we don't
-// emit 'drain' before the write() consumer gets the 'false' return
-// value, and has a chance to attach a 'drain' listener.
-function onwriteDrain(stream, state) {
-  if (state.length === 0 && state.needDrain) {
-    state.needDrain = false;
-    stream.emit('drain');
-  }
-}
+exports.platform = function () { return 'browser' };
 
+exports.tmpdir = exports.tmpDir = function () {
+    return '/tmp';
+};
 
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
-  state.bufferProcessing = true;
+exports.EOL = '\n';
 
-  if (stream._writev && state.buffer.length > 1) {
-    // Fast case, write everything using _writev()
-    var cbs = [];
-    for (var c = 0; c < state.buffer.length; c++)
-      cbs.push(state.buffer[c].callback);
+},{}],66:[function(require,module,exports){
+(function (process){
+'use strict';
 
-    // count the one we are adding, as well.
-    // TODO(isaacs) clean this up
-    state.pendingcb++;
-    doWrite(stream, state, true, state.length, state.buffer, '', function(err) {
-      for (var i = 0; i < cbs.length; i++) {
-        state.pendingcb--;
-        cbs[i](err);
-      }
+if (!process.version ||
+    process.version.indexOf('v0.') === 0 ||
+    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
+  module.exports = nextTick;
+} else {
+  module.exports = process.nextTick;
+}
+
+function nextTick(fn, arg1, arg2, arg3) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('"callback" argument must be a function');
+  }
+  var len = arguments.length;
+  var args, i;
+  switch (len) {
+  case 0:
+  case 1:
+    return process.nextTick(fn);
+  case 2:
+    return process.nextTick(function afterTickOne() {
+      fn.call(null, arg1);
     });
-
-    // Clear buffer
-    state.buffer = [];
-  } else {
-    // Slow case, write chunks one-by-one
-    for (var c = 0; c < state.buffer.length; c++) {
-      var entry = state.buffer[c];
-      var chunk = entry.chunk;
-      var encoding = entry.encoding;
-      var cb = entry.callback;
-      var len = state.objectMode ? 1 : chunk.length;
-
-      doWrite(stream, state, false, len, chunk, encoding, cb);
-
-      // if we didn't call the onwrite immediately, then
-      // it means that we need to wait until it does.
-      // also, that means that the chunk and cb are currently
-      // being processed, so move the buffer counter past them.
-      if (state.writing) {
-        c++;
-        break;
-      }
+  case 3:
+    return process.nextTick(function afterTickTwo() {
+      fn.call(null, arg1, arg2);
+    });
+  case 4:
+    return process.nextTick(function afterTickThree() {
+      fn.call(null, arg1, arg2, arg3);
+    });
+  default:
+    args = new Array(len - 1);
+    i = 0;
+    while (i < args.length) {
+      args[i++] = arguments[i];
     }
-
-    if (c < state.buffer.length)
-      state.buffer = state.buffer.slice(c);
-    else
-      state.buffer.length = 0;
+    return process.nextTick(function afterTick() {
+      fn.apply(null, args);
+    });
   }
-
-  state.bufferProcessing = false;
 }
 
-Writable.prototype._write = function(chunk, encoding, cb) {
-  cb(new Error('not implemented'));
-
-};
+}).call(this,require('_process'))
+},{"_process":67}],67:[function(require,module,exports){
+// shim for using process in browser
+var process = module.exports = {};
 
-Writable.prototype._writev = null;
+// cached from whatever global is present so that test runners that stub it
+// don't break things.  But we need to wrap it in a try catch in case it is
+// wrapped in strict mode code which doesn't define any globals.  It's inside a
+// function because try/catches deoptimize in certain engines.
 
-Writable.prototype.end = function(chunk, encoding, cb) {
-  var state = this._writableState;
+var cachedSetTimeout;
+var cachedClearTimeout;
 
-  if (util.isFunction(chunk)) {
-    cb = chunk;
-    chunk = null;
-    encoding = null;
-  } else if (util.isFunction(encoding)) {
-    cb = encoding;
-    encoding = null;
-  }
+function defaultSetTimout() {
+    throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout () {
+    throw new Error('clearTimeout has not been defined');
+}
+(function () {
+    try {
+        if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+        } else {
+            cachedSetTimeout = defaultSetTimout;
+        }
+    } catch (e) {
+        cachedSetTimeout = defaultSetTimout;
+    }
+    try {
+        if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+        } else {
+            cachedClearTimeout = defaultClearTimeout;
+        }
+    } catch (e) {
+        cachedClearTimeout = defaultClearTimeout;
+    }
+} ())
+function runTimeout(fun) {
+    if (cachedSetTimeout === setTimeout) {
+        //normal enviroments in sane situations
+        return setTimeout(fun, 0);
+    }
+    // if setTimeout wasn't available but was latter defined
+    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+        cachedSetTimeout = setTimeout;
+        return setTimeout(fun, 0);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedSetTimeout(fun, 0);
+    } catch(e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+        } catch(e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+        }
+    }
 
-  if (!util.isNullOrUndefined(chunk))
-    this.write(chunk, encoding);
 
-  // .end() fully uncorks
-  if (state.corked) {
-    state.corked = 1;
-    this.uncork();
-  }
+}
+function runClearTimeout(marker) {
+    if (cachedClearTimeout === clearTimeout) {
+        //normal enviroments in sane situations
+        return clearTimeout(marker);
+    }
+    // if clearTimeout wasn't available but was latter defined
+    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+        cachedClearTimeout = clearTimeout;
+        return clearTimeout(marker);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedClearTimeout(marker);
+    } catch (e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+        } catch (e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+        }
+    }
 
-  // ignore unnecessary end() calls.
-  if (!state.ending && !state.finished)
-    endWritable(this, state, cb);
-};
 
 
-function needFinish(stream, state) {
-  return (state.ending &&
-          state.length === 0 &&
-          !state.finished &&
-          !state.writing);
 }
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
 
-function prefinish(stream, state) {
-  if (!state.prefinished) {
-    state.prefinished = true;
-    stream.emit('prefinish');
-  }
+function cleanUpNextTick() {
+    if (!draining || !currentQueue) {
+        return;
+    }
+    draining = false;
+    if (currentQueue.length) {
+        queue = currentQueue.concat(queue);
+    } else {
+        queueIndex = -1;
+    }
+    if (queue.length) {
+        drainQueue();
+    }
 }
 
-function finishMaybe(stream, state) {
-  var need = needFinish(stream, state);
-  if (need) {
-    if (state.pendingcb === 0) {
-      prefinish(stream, state);
-      state.finished = true;
-      stream.emit('finish');
-    } else
-      prefinish(stream, state);
-  }
-  return need;
-}
+function drainQueue() {
+    if (draining) {
+        return;
+    }
+    var timeout = runTimeout(cleanUpNextTick);
+    draining = true;
 
-function endWritable(stream, state, cb) {
-  state.ending = true;
-  finishMaybe(stream, state);
-  if (cb) {
-    if (state.finished)
-      process.nextTick(cb);
-    else
-      stream.once('finish', cb);
-  }
-  state.ended = true;
+    var len = queue.length;
+    while(len) {
+        currentQueue = queue;
+        queue = [];
+        while (++queueIndex < len) {
+            if (currentQueue) {
+                currentQueue[queueIndex].run();
+            }
+        }
+        queueIndex = -1;
+        len = queue.length;
+    }
+    currentQueue = null;
+    draining = false;
+    runClearTimeout(timeout);
 }
 
-}).call(this,require('_process'))
-},{"./_stream_duplex":53,"_process":51,"buffer":43,"core-util-is":58,"inherits":48,"stream":63}],58:[function(require,module,exports){
-(function (Buffer){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+process.nextTick = function (fun) {
+    var args = new Array(arguments.length - 1);
+    if (arguments.length > 1) {
+        for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+        }
+    }
+    queue.push(new Item(fun, args));
+    if (queue.length === 1 && !draining) {
+        runTimeout(drainQueue);
+    }
+};
 
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-function isArray(ar) {
-  return Array.isArray(ar);
+// v8 likes predictible objects
+function Item(fun, array) {
+    this.fun = fun;
+    this.array = array;
 }
-exports.isArray = isArray;
+Item.prototype.run = function () {
+    this.fun.apply(null, this.array);
+};
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
 
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
+function noop() {}
 
-function isNull(arg) {
-  return arg === null;
-}
-exports.isNull = isNull;
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
 
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
+process.binding = function (name) {
+    throw new Error('process.binding is not supported');
+};
 
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+    throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
 
-function isString(arg) {
-  return typeof arg === 'string';
-}
-exports.isString = isString;
+},{}],68:[function(require,module,exports){
+module.exports = require("./lib/_stream_duplex.js")
 
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
+},{"./lib/_stream_duplex.js":69}],69:[function(require,module,exports){
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
 
-function isUndefined(arg) {
-  return arg === void 0;
-}
-exports.isUndefined = isUndefined;
+'use strict';
 
-function isRegExp(re) {
-  return isObject(re) && objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
+/*<replacement>*/
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    keys.push(key);
+  }return keys;
+};
+/*</replacement>*/
 
-function isDate(d) {
-  return isObject(d) && objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
+module.exports = Duplex;
 
-function isError(e) {
-  return isObject(e) &&
-      (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
+/*<replacement>*/
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
-}
-exports.isPrimitive = isPrimitive;
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
 
-function isBuffer(arg) {
-  return Buffer.isBuffer(arg);
-}
-exports.isBuffer = isBuffer;
+util.inherits(Duplex, Readable);
 
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
+var keys = objectKeys(Writable.prototype);
+for (var v = 0; v < keys.length; v++) {
+  var method = keys[v];
+  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
 }
-}).call(this,require("buffer").Buffer)
-},{"buffer":43}],59:[function(require,module,exports){
-module.exports = require("./lib/_stream_passthrough.js")
-
-},{"./lib/_stream_passthrough.js":54}],60:[function(require,module,exports){
-exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = require('stream');
-exports.Readable = exports;
-exports.Writable = require('./lib/_stream_writable.js');
-exports.Duplex = require('./lib/_stream_duplex.js');
-exports.Transform = require('./lib/_stream_transform.js');
-exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-},{"./lib/_stream_duplex.js":53,"./lib/_stream_passthrough.js":54,"./lib/_stream_readable.js":55,"./lib/_stream_transform.js":56,"./lib/_stream_writable.js":57,"stream":63}],61:[function(require,module,exports){
-module.exports = require("./lib/_stream_transform.js")
-
-},{"./lib/_stream_transform.js":56}],62:[function(require,module,exports){
-module.exports = require("./lib/_stream_writable.js")
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
 
-},{"./lib/_stream_writable.js":57}],63:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  Readable.call(this, options);
+  Writable.call(this, options);
 
-module.exports = Stream;
+  if (options && options.readable === false) this.readable = false;
 
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
+  if (options && options.writable === false) this.writable = false;
 
-inherits(Stream, EE);
-Stream.Readable = require('readable-stream/readable.js');
-Stream.Writable = require('readable-stream/writable.js');
-Stream.Duplex = require('readable-stream/duplex.js');
-Stream.Transform = require('readable-stream/transform.js');
-Stream.PassThrough = require('readable-stream/passthrough.js');
+  this.allowHalfOpen = true;
+  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
 
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
+  this.once('end', onend);
+}
 
+// the no-half-open enforcer
+function onend() {
+  // if we allow half-open state, or if the writable side ended,
+  // then we're ok.
+  if (this.allowHalfOpen || this._writableState.ended) return;
 
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  processNextTick(onEndNT, this);
+}
 
-// old-style streams.  Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
+function onEndNT(self) {
+  self.end();
+}
 
-function Stream() {
-  EE.call(this);
+function forEach(xs, f) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    f(xs[i], i);
+  }
 }
+},{"./_stream_readable":71,"./_stream_writable":73,"core-util-is":45,"inherits":51,"process-nextick-args":66}],70:[function(require,module,exports){
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
 
-Stream.prototype.pipe = function(dest, options) {
-  var source = this;
+'use strict';
 
-  function ondata(chunk) {
-    if (dest.writable) {
-      if (false === dest.write(chunk) && source.pause) {
-        source.pause();
-      }
-    }
-  }
+module.exports = PassThrough;
 
-  source.on('data', ondata);
+var Transform = require('./_stream_transform');
 
-  function ondrain() {
-    if (source.readable && source.resume) {
-      source.resume();
-    }
-  }
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-  dest.on('drain', ondrain);
+util.inherits(PassThrough, Transform);
 
-  // If the 'end' option is not supplied, dest.end() will be called when
-  // source gets the 'end' or 'close' events.  Only dest.end() once.
-  if (!dest._isStdio && (!options || options.end !== false)) {
-    source.on('end', onend);
-    source.on('close', onclose);
-  }
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
 
-  var didOnEnd = false;
-  function onend() {
-    if (didOnEnd) return;
-    didOnEnd = true;
+  Transform.call(this, options);
+}
 
-    dest.end();
-  }
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};
+},{"./_stream_transform":72,"core-util-is":45,"inherits":51}],71:[function(require,module,exports){
+(function (process){
+'use strict';
 
+module.exports = Readable;
 
-  function onclose() {
-    if (didOnEnd) return;
-    didOnEnd = true;
+/*<replacement>*/
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-    if (typeof dest.destroy === 'function') dest.destroy();
-  }
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
 
-  // don't leave dangling pipes when there are errors.
-  function onerror(er) {
-    cleanup();
-    if (EE.listenerCount(this, 'error') === 0) {
-      throw er; // Unhandled stream error in pipe.
-    }
+Readable.ReadableState = ReadableState;
+
+/*<replacement>*/
+var EE = require('events').EventEmitter;
+
+var EElistenerCount = function (emitter, type) {
+  return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream;
+(function () {
+  try {
+    Stream = require('st' + 'ream');
+  } catch (_) {} finally {
+    if (!Stream) Stream = require('events').EventEmitter;
   }
+})();
+/*</replacement>*/
 
-  source.on('error', onerror);
-  dest.on('error', onerror);
+var Buffer = require('buffer').Buffer;
+/*<replacement>*/
+var bufferShim = require('buffer-shims');
+/*</replacement>*/
 
-  // remove all the event listeners that were added.
-  function cleanup() {
-    source.removeListener('data', ondata);
-    dest.removeListener('drain', ondrain);
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-    source.removeListener('end', onend);
-    source.removeListener('close', onclose);
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+  debug = debugUtil.debuglog('stream');
+} else {
+  debug = function () {};
+}
+/*</replacement>*/
 
-    source.removeListener('error', onerror);
-    dest.removeListener('error', onerror);
+var BufferList = require('./internal/streams/BufferList');
+var StringDecoder;
 
-    source.removeListener('end', cleanup);
-    source.removeListener('close', cleanup);
+util.inherits(Readable, Stream);
 
-    dest.removeListener('close', cleanup);
+function prependListener(emitter, event, fn) {
+  if (typeof emitter.prependListener === 'function') {
+    return emitter.prependListener(event, fn);
+  } else {
+    // This is a hack to make sure that our error handler is attached before any
+    // userland ones.  NEVER DO THIS. This is here only because this code needs
+    // to continue to work with older versions of Node.js that do not include
+    // the prependListener() method. The goal is to eventually remove this hack.
+    if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
   }
+}
 
-  source.on('end', cleanup);
-  source.on('close', cleanup);
+var Duplex;
+function ReadableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-  dest.on('close', cleanup);
+  options = options || {};
 
-  dest.emit('pipe', source);
+  // object stream flag. Used to make read(n) ignore n and to
+  // make all the buffer merging and length checks go away
+  this.objectMode = !!options.objectMode;
 
-  // Allow for unix-like usage: A.pipe(B).pipe(C)
-  return dest;
-};
+  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
 
-},{"events":47,"inherits":48,"readable-stream/duplex.js":52,"readable-stream/passthrough.js":59,"readable-stream/readable.js":60,"readable-stream/transform.js":61,"readable-stream/writable.js":62}],64:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  // the point at which it stops calling _read() to fill the buffer
+  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+  var hwm = options.highWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
 
-var Buffer = require('buffer').Buffer;
+  // cast to ints.
+  this.highWaterMark = ~ ~this.highWaterMark;
 
-var isBufferEncoding = Buffer.isEncoding
-  || function(encoding) {
-       switch (encoding && encoding.toLowerCase()) {
-         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
-         default: return false;
-       }
-     }
+  // A linked list is used to store data chunks instead of an array because the
+  // linked list can remove elements from the beginning faster than
+  // array.shift()
+  this.buffer = new BufferList();
+  this.length = 0;
+  this.pipes = null;
+  this.pipesCount = 0;
+  this.flowing = null;
+  this.ended = false;
+  this.endEmitted = false;
+  this.reading = false;
 
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
 
-function assertEncoding(encoding) {
-  if (encoding && !isBufferEncoding(encoding)) {
-    throw new Error('Unknown encoding: ' + encoding);
-  }
-}
+  // whenever we return null, then we set a flag to say
+  // that we're awaiting a 'readable' event emission.
+  this.needReadable = false;
+  this.emittedReadable = false;
+  this.readableListening = false;
+  this.resumeScheduled = false;
 
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters. CESU-8 is handled as part of the UTF-8 encoding.
-//
-// @TODO Handling all encodings inside a single object makes it very difficult
-// to reason about this code, so it should be split up in the future.
-// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
-// points as used by CESU-8.
-var StringDecoder = exports.StringDecoder = function(encoding) {
-  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
-  assertEncoding(encoding);
-  switch (this.encoding) {
-    case 'utf8':
-      // CESU-8 represents each of Surrogate Pair by 3-bytes
-      this.surrogateSize = 3;
-      break;
-    case 'ucs2':
-    case 'utf16le':
-      // UTF-16 represents each of Surrogate Pair by 2-bytes
-      this.surrogateSize = 2;
-      this.detectIncompleteChar = utf16DetectIncompleteChar;
-      break;
-    case 'base64':
-      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
-      this.surrogateSize = 3;
-      this.detectIncompleteChar = base64DetectIncompleteChar;
-      break;
-    default:
-      this.write = passThroughWrite;
-      return;
-  }
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-  // Enough space to store all bytes of a single character. UTF-8 needs 4
-  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
-  this.charBuffer = new Buffer(6);
-  // Number of bytes received for the current incomplete multi-byte character.
-  this.charReceived = 0;
-  // Number of bytes expected for the current incomplete multi-byte character.
-  this.charLength = 0;
-};
+  // when piping, we only care about 'readable' events that happen
+  // after read()ing all the bytes and not getting any pushback.
+  this.ranOut = false;
 
+  // the number of writers that are awaiting a drain event in .pipe()s
+  this.awaitDrain = 0;
 
-// write decodes the given buffer and returns it as JS string that is
-// guaranteed to not contain any partial multi-byte characters. Any partial
-// character found at the end of the buffer is buffered up, and will be
-// returned when calling write again with the remaining bytes.
-//
-// Note: Converting a Buffer containing an orphan surrogate to a String
-// currently works, but converting a String to a Buffer (via `new Buffer`, or
-// Buffer#write) will replace incomplete surrogates with the unicode
-// replacement character. See https://codereview.chromium.org/121173009/ .
-StringDecoder.prototype.write = function(buffer) {
-  var charStr = '';
-  // if our last write ended with an incomplete multibyte character
-  while (this.charLength) {
-    // determine how many remaining bytes this buffer has to offer for this char
-    var available = (buffer.length >= this.charLength - this.charReceived) ?
-        this.charLength - this.charReceived :
-        buffer.length;
+  // if true, a maybeReadMore has been scheduled
+  this.readingMore = false;
 
-    // add the new bytes to the char buffer
-    buffer.copy(this.charBuffer, this.charReceived, 0, available);
-    this.charReceived += available;
+  this.decoder = null;
+  this.encoding = null;
+  if (options.encoding) {
+    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+    this.decoder = new StringDecoder(options.encoding);
+    this.encoding = options.encoding;
+  }
+}
 
-    if (this.charReceived < this.charLength) {
-      // still not enough chars in this buffer? wait for more ...
-      return '';
-    }
+var Duplex;
+function Readable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-    // remove bytes belonging to the current character from the buffer
-    buffer = buffer.slice(available, buffer.length);
+  if (!(this instanceof Readable)) return new Readable(options);
 
-    // get the character that was split
-    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+  this._readableState = new ReadableState(options, this);
 
-    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
-    var charCode = charStr.charCodeAt(charStr.length - 1);
-    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
-      this.charLength += this.surrogateSize;
-      charStr = '';
-      continue;
-    }
-    this.charReceived = this.charLength = 0;
+  // legacy
+  this.readable = true;
 
-    // if there are no more bytes in this buffer, just emit our char
-    if (buffer.length === 0) {
-      return charStr;
-    }
-    break;
-  }
+  if (options && typeof options.read === 'function') this._read = options.read;
 
-  // determine and set charLength / charReceived
-  this.detectIncompleteChar(buffer);
+  Stream.call(this);
+}
 
-  var end = buffer.length;
-  if (this.charLength) {
-    // buffer the incomplete character bytes we got
-    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
-    end -= this.charReceived;
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+  var state = this._readableState;
+
+  if (!state.objectMode && typeof chunk === 'string') {
+    encoding = encoding || state.defaultEncoding;
+    if (encoding !== state.encoding) {
+      chunk = bufferShim.from(chunk, encoding);
+      encoding = '';
+    }
   }
 
-  charStr += buffer.toString(this.encoding, 0, end);
+  return readableAddChunk(this, state, chunk, encoding, false);
+};
 
-  var end = charStr.length - 1;
-  var charCode = charStr.charCodeAt(end);
-  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
-  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
-    var size = this.surrogateSize;
-    this.charLength += size;
-    this.charReceived += size;
-    this.charBuffer.copy(this.charBuffer, size, 0, size);
-    buffer.copy(this.charBuffer, 0, 0, size);
-    return charStr.substring(0, end);
-  }
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+  var state = this._readableState;
+  return readableAddChunk(this, state, chunk, '', true);
+};
 
-  // or just emit the charStr
-  return charStr;
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
 };
 
-// detectIncompleteChar determines if there is an incomplete UTF-8 character at
-// the end of the given buffer. If so, it sets this.charLength to the byte
-// length that character, and sets this.charReceived to the number of bytes
-// that are available for this character.
-StringDecoder.prototype.detectIncompleteChar = function(buffer) {
-  // determine how many bytes we have to check at the end of this buffer
-  var i = (buffer.length >= 3) ? 3 : buffer.length;
-
-  // Figure out if one of the last i bytes of our buffer announces an
-  // incomplete char.
-  for (; i > 0; i--) {
-    var c = buffer[buffer.length - i];
+function readableAddChunk(stream, state, chunk, encoding, addToFront) {
+  var er = chunkInvalid(state, chunk);
+  if (er) {
+    stream.emit('error', er);
+  } else if (chunk === null) {
+    state.reading = false;
+    onEofChunk(stream, state);
+  } else if (state.objectMode || chunk && chunk.length > 0) {
+    if (state.ended && !addToFront) {
+      var e = new Error('stream.push() after EOF');
+      stream.emit('error', e);
+    } else if (state.endEmitted && addToFront) {
+      var _e = new Error('stream.unshift() after end event');
+      stream.emit('error', _e);
+    } else {
+      var skipAdd;
+      if (state.decoder && !addToFront && !encoding) {
+        chunk = state.decoder.write(chunk);
+        skipAdd = !state.objectMode && chunk.length === 0;
+      }
 
-    // See http://en.wikipedia.org/wiki/UTF-8#Description
+      if (!addToFront) state.reading = false;
 
-    // 110XXXXX
-    if (i == 1 && c >> 5 == 0x06) {
-      this.charLength = 2;
-      break;
-    }
+      // Don't add to the buffer if we've decoded to an empty string chunk and
+      // we're not in object mode
+      if (!skipAdd) {
+        // if we want the data now, just emit it.
+        if (state.flowing && state.length === 0 && !state.sync) {
+          stream.emit('data', chunk);
+          stream.read(0);
+        } else {
+          // update the buffer info.
+          state.length += state.objectMode ? 1 : chunk.length;
+          if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
 
-    // 1110XXXX
-    if (i <= 2 && c >> 4 == 0x0E) {
-      this.charLength = 3;
-      break;
-    }
+          if (state.needReadable) emitReadable(stream);
+        }
+      }
 
-    // 11110XXX
-    if (i <= 3 && c >> 3 == 0x1E) {
-      this.charLength = 4;
-      break;
+      maybeReadMore(stream, state);
     }
+  } else if (!addToFront) {
+    state.reading = false;
   }
-  this.charReceived = i;
-};
 
-StringDecoder.prototype.end = function(buffer) {
-  var res = '';
-  if (buffer && buffer.length)
-    res = this.write(buffer);
+  return needMoreData(state);
+}
 
-  if (this.charReceived) {
-    var cr = this.charReceived;
-    var buf = this.charBuffer;
-    var enc = this.encoding;
-    res += buf.slice(0, cr).toString(enc);
-  }
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes.  This is to work around cases where hwm=0,
+// such as the repl.  Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
+}
 
-  return res;
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+  this._readableState.decoder = new StringDecoder(enc);
+  this._readableState.encoding = enc;
+  return this;
 };
 
-function passThroughWrite(buffer) {
-  return buffer.toString(this.encoding);
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+  if (n >= MAX_HWM) {
+    n = MAX_HWM;
+  } else {
+    // Get the next highest power of 2 to prevent increasing hwm excessively in
+    // tiny amounts
+    n--;
+    n |= n >>> 1;
+    n |= n >>> 2;
+    n |= n >>> 4;
+    n |= n >>> 8;
+    n |= n >>> 16;
+    n++;
+  }
+  return n;
 }
 
-function utf16DetectIncompleteChar(buffer) {
-  this.charReceived = buffer.length % 2;
-  this.charLength = this.charReceived ? 2 : 0;
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+  if (n <= 0 || state.length === 0 && state.ended) return 0;
+  if (state.objectMode) return 1;
+  if (n !== n) {
+    // Only flow one buffer at a time
+    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+  }
+  // If we're asking for more than the current hwm, then raise the hwm.
+  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+  if (n <= state.length) return n;
+  // Don't have enough
+  if (!state.ended) {
+    state.needReadable = true;
+    return 0;
+  }
+  return state.length;
 }
 
-function base64DetectIncompleteChar(buffer) {
-  this.charReceived = buffer.length % 3;
-  this.charLength = this.charReceived ? 3 : 0;
-}
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+  debug('read', n);
+  n = parseInt(n, 10);
+  var state = this._readableState;
+  var nOrig = n;
 
-},{"buffer":43}],65:[function(require,module,exports){
-module.exports = function isBuffer(arg) {
-  return arg && typeof arg === 'object'
-    && typeof arg.copy === 'function'
-    && typeof arg.fill === 'function'
-    && typeof arg.readUInt8 === 'function';
-}
-},{}],66:[function(require,module,exports){
-(function (process,global){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  if (n !== 0) state.emittedReadable = false;
 
-var formatRegExp = /%[sdj%]/g;
-exports.format = function(f) {
-  if (!isString(f)) {
-    var objects = [];
-    for (var i = 0; i < arguments.length; i++) {
-      objects.push(inspect(arguments[i]));
-    }
-    return objects.join(' ');
+  // if we're doing read(0) to trigger a readable event, but we
+  // already have a bunch of data in the buffer, then just trigger
+  // the 'readable' event and move on.
+  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+    debug('read: emitReadable', state.length, state.ended);
+    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+    return null;
   }
 
-  var i = 1;
-  var args = arguments;
-  var len = args.length;
-  var str = String(f).replace(formatRegExp, function(x) {
-    if (x === '%%') return '%';
-    if (i >= len) return x;
-    switch (x) {
-      case '%s': return String(args[i++]);
-      case '%d': return Number(args[i++]);
-      case '%j':
-        try {
-          return JSON.stringify(args[i++]);
-        } catch (_) {
-          return '[Circular]';
-        }
-      default:
-        return x;
-    }
-  });
-  for (var x = args[i]; i < len; x = args[++i]) {
-    if (isNull(x) || !isObject(x)) {
-      str += ' ' + x;
-    } else {
-      str += ' ' + inspect(x);
-    }
+  n = howMuchToRead(n, state);
+
+  // if we've ended, and we're now clear, then finish it up.
+  if (n === 0 && state.ended) {
+    if (state.length === 0) endReadable(this);
+    return null;
   }
-  return str;
-};
 
+  // All the actual chunk generation logic needs to be
+  // *below* the call to _read.  The reason is that in certain
+  // synthetic stream cases, such as passthrough streams, _read
+  // may be a completely synchronous operation which may change
+  // the state of the read buffer, providing enough data when
+  // before there was *not* enough.
+  //
+  // So, the steps are:
+  // 1. Figure out what the state of things will be after we do
+  // a read from the buffer.
+  //
+  // 2. If that resulting state will trigger a _read, then call _read.
+  // Note that this may be asynchronous, or synchronous.  Yes, it is
+  // deeply ugly to write APIs this way, but that still doesn't mean
+  // that the Readable class should behave improperly, as streams are
+  // designed to be sync/async agnostic.
+  // Take note if the _read call is sync or async (ie, if the read call
+  // has returned yet), so that we know whether or not it's safe to emit
+  // 'readable' etc.
+  //
+  // 3. Actually pull the requested chunks out of the buffer and return.
+
+  // if we need a readable event, then we need to do some reading.
+  var doRead = state.needReadable;
+  debug('need readable', doRead);
 
-// Mark that a method should not be used.
-// Returns a modified function which warns once by default.
-// If --no-deprecation is set, then it is a no-op.
-exports.deprecate = function(fn, msg) {
-  // Allow for deprecating things in the process of starting up.
-  if (isUndefined(global.process)) {
-    return function() {
-      return exports.deprecate(fn, msg).apply(this, arguments);
-    };
+  // if we currently have less than the highWaterMark, then also read some
+  if (state.length === 0 || state.length - n < state.highWaterMark) {
+    doRead = true;
+    debug('length less than watermark', doRead);
   }
 
-  if (process.noDeprecation === true) {
-    return fn;
+  // however, if we've ended, then there's no point, and if we're already
+  // reading, then it's unnecessary.
+  if (state.ended || state.reading) {
+    doRead = false;
+    debug('reading or ended', doRead);
+  } else if (doRead) {
+    debug('do read');
+    state.reading = true;
+    state.sync = true;
+    // if the length is currently zero, then we *need* a readable event.
+    if (state.length === 0) state.needReadable = true;
+    // call internal read method
+    this._read(state.highWaterMark);
+    state.sync = false;
+    // If _read pushed data synchronously, then `reading` will be false,
+    // and we need to re-evaluate how much data we can return to the user.
+    if (!state.reading) n = howMuchToRead(nOrig, state);
   }
 
-  var warned = false;
-  function deprecated() {
-    if (!warned) {
-      if (process.throwDeprecation) {
-        throw new Error(msg);
-      } else if (process.traceDeprecation) {
-        console.trace(msg);
-      } else {
-        console.error(msg);
-      }
-      warned = true;
-    }
-    return fn.apply(this, arguments);
+  var ret;
+  if (n > 0) ret = fromList(n, state);else ret = null;
+
+  if (ret === null) {
+    state.needReadable = true;
+    n = 0;
+  } else {
+    state.length -= n;
   }
 
-  return deprecated;
+  if (state.length === 0) {
+    // If we have nothing in the buffer, then we want to know
+    // as soon as we *do* get something into the buffer.
+    if (!state.ended) state.needReadable = true;
+
+    // If we tried to read() past the EOF, then emit end on the next tick.
+    if (nOrig !== n && state.ended) endReadable(this);
+  }
+
+  if (ret !== null) this.emit('data', ret);
+
+  return ret;
 };
 
+function chunkInvalid(state, chunk) {
+  var er = null;
+  if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  return er;
+}
 
-var debugs = {};
-var debugEnviron;
-exports.debuglog = function(set) {
-  if (isUndefined(debugEnviron))
-    debugEnviron = process.env.NODE_DEBUG || '';
-  set = set.toUpperCase();
-  if (!debugs[set]) {
-    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
-      var pid = process.pid;
-      debugs[set] = function() {
-        var msg = exports.format.apply(exports, arguments);
-        console.error('%s %d: %s', set, pid, msg);
-      };
-    } else {
-      debugs[set] = function() {};
+function onEofChunk(stream, state) {
+  if (state.ended) return;
+  if (state.decoder) {
+    var chunk = state.decoder.end();
+    if (chunk && chunk.length) {
+      state.buffer.push(chunk);
+      state.length += state.objectMode ? 1 : chunk.length;
     }
   }
-  return debugs[set];
-};
+  state.ended = true;
 
+  // emit 'readable' now to make sure it gets picked up.
+  emitReadable(stream);
+}
 
-/**
- * Echos the value of a value. Trys to print the value out
- * in the best way possible given the different types.
- *
- * @param {Object} obj The object to print out.
- * @param {Object} opts Optional options object that alters the output.
- */
-/* legacy: obj, showHidden, depth, colors*/
-function inspect(obj, opts) {
-  // default options
-  var ctx = {
-    seen: [],
-    stylize: stylizeNoColor
-  };
-  // legacy...
-  if (arguments.length >= 3) ctx.depth = arguments[2];
-  if (arguments.length >= 4) ctx.colors = arguments[3];
-  if (isBoolean(opts)) {
-    // legacy...
-    ctx.showHidden = opts;
-  } else if (opts) {
-    // got an "options" object
-    exports._extend(ctx, opts);
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow.  This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+  var state = stream._readableState;
+  state.needReadable = false;
+  if (!state.emittedReadable) {
+    debug('emitReadable', state.flowing);
+    state.emittedReadable = true;
+    if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
   }
-  // set default options
-  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
-  if (isUndefined(ctx.depth)) ctx.depth = 2;
-  if (isUndefined(ctx.colors)) ctx.colors = false;
-  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
-  if (ctx.colors) ctx.stylize = stylizeWithColor;
-  return formatValue(ctx, obj, ctx.depth);
 }
-exports.inspect = inspect;
-
 
-// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
-inspect.colors = {
-  'bold' : [1, 22],
-  'italic' : [3, 23],
-  'underline' : [4, 24],
-  'inverse' : [7, 27],
-  'white' : [37, 39],
-  'grey' : [90, 39],
-  'black' : [30, 39],
-  'blue' : [34, 39],
-  'cyan' : [36, 39],
-  'green' : [32, 39],
-  'magenta' : [35, 39],
-  'red' : [31, 39],
-  'yellow' : [33, 39]
-};
-
-// Don't use 'blue' not visible on cmd.exe
-inspect.styles = {
-  'special': 'cyan',
-  'number': 'yellow',
-  'boolean': 'yellow',
-  'undefined': 'grey',
-  'null': 'bold',
-  'string': 'green',
-  'date': 'magenta',
-  // "name": intentionally not styling
-  'regexp': 'red'
-};
-
-
-function stylizeWithColor(str, styleType) {
-  var style = inspect.styles[styleType];
+function emitReadable_(stream) {
+  debug('emit readable');
+  stream.emit('readable');
+  flow(stream);
+}
 
-  if (style) {
-    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
-           '\u001b[' + inspect.colors[style][1] + 'm';
-  } else {
-    return str;
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data.  that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+  if (!state.readingMore) {
+    state.readingMore = true;
+    processNextTick(maybeReadMore_, stream, state);
   }
 }
 
-
-function stylizeNoColor(str, styleType) {
-  return str;
+function maybeReadMore_(stream, state) {
+  var len = state.length;
+  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+    debug('maybeReadMore read 0');
+    stream.read(0);
+    if (len === state.length)
+      // didn't get any data, stop spinning.
+      break;else len = state.length;
+  }
+  state.readingMore = false;
 }
 
+// abstract method.  to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+  this.emit('error', new Error('not implemented'));
+};
 
-function arrayToHash(array) {
-  var hash = {};
+Readable.prototype.pipe = function (dest, pipeOpts) {
+  var src = this;
+  var state = this._readableState;
 
-  array.forEach(function(val, idx) {
-    hash[val] = true;
-  });
+  switch (state.pipesCount) {
+    case 0:
+      state.pipes = dest;
+      break;
+    case 1:
+      state.pipes = [state.pipes, dest];
+      break;
+    default:
+      state.pipes.push(dest);
+      break;
+  }
+  state.pipesCount += 1;
+  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
 
-  return hash;
-}
+  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
 
+  var endFn = doEnd ? onend : cleanup;
+  if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
 
-function formatValue(ctx, value, recurseTimes) {
-  // Provide a hook for user-specified inspect functions.
-  // Check that value is an object with an inspect function on it
-  if (ctx.customInspect &&
-      value &&
-      isFunction(value.inspect) &&
-      // Filter out the util module, it's inspect function is special
-      value.inspect !== exports.inspect &&
-      // Also filter out any prototype objects using the circular check.
-      !(value.constructor && value.constructor.prototype === value)) {
-    var ret = value.inspect(recurseTimes, ctx);
-    if (!isString(ret)) {
-      ret = formatValue(ctx, ret, recurseTimes);
+  dest.on('unpipe', onunpipe);
+  function onunpipe(readable) {
+    debug('onunpipe');
+    if (readable === src) {
+      cleanup();
     }
-    return ret;
   }
 
-  // Primitive types cannot have properties
-  var primitive = formatPrimitive(ctx, value);
-  if (primitive) {
-    return primitive;
+  function onend() {
+    debug('onend');
+    dest.end();
   }
 
-  // Look up the keys of the object.
-  var keys = Object.keys(value);
-  var visibleKeys = arrayToHash(keys);
+  // when the dest drains, it reduces the awaitDrain counter
+  // on the source.  This would be more elegant with a .once()
+  // handler in flow(), but adding and removing repeatedly is
+  // too slow.
+  var ondrain = pipeOnDrain(src);
+  dest.on('drain', ondrain);
 
-  if (ctx.showHidden) {
-    keys = Object.getOwnPropertyNames(value);
-  }
+  var cleanedUp = false;
+  function cleanup() {
+    debug('cleanup');
+    // cleanup event handlers once the pipe is broken
+    dest.removeListener('close', onclose);
+    dest.removeListener('finish', onfinish);
+    dest.removeListener('drain', ondrain);
+    dest.removeListener('error', onerror);
+    dest.removeListener('unpipe', onunpipe);
+    src.removeListener('end', onend);
+    src.removeListener('end', cleanup);
+    src.removeListener('data', ondata);
 
-  // IE doesn't make error fields non-enumerable
-  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
-  if (isError(value)
-      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
-    return formatError(value);
+    cleanedUp = true;
+
+    // if the reader is waiting for a drain event from this
+    // specific writer, then it would cause it to never start
+    // flowing again.
+    // So, if this is awaiting a drain, then we just call it now.
+    // If we don't know, then assume that we are waiting for one.
+    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
   }
 
-  // Some type of object without properties can be shortcutted.
-  if (keys.length === 0) {
-    if (isFunction(value)) {
-      var name = value.name ? ': ' + value.name : '';
-      return ctx.stylize('[Function' + name + ']', 'special');
-    }
-    if (isRegExp(value)) {
-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
-    }
-    if (isDate(value)) {
-      return ctx.stylize(Date.prototype.toString.call(value), 'date');
-    }
-    if (isError(value)) {
-      return formatError(value);
+  // If the user pushes more data while we're writing to dest then we'll end up
+  // in ondata again. However, we only want to increase awaitDrain once because
+  // dest will only emit one 'drain' event for the multiple writes.
+  // => Introduce a guard on increasing awaitDrain.
+  var increasedAwaitDrain = false;
+  src.on('data', ondata);
+  function ondata(chunk) {
+    debug('ondata');
+    increasedAwaitDrain = false;
+    var ret = dest.write(chunk);
+    if (false === ret && !increasedAwaitDrain) {
+      // If the user unpiped during `dest.write()`, it is possible
+      // to get stuck in a permanently paused state if that write
+      // also returned false.
+      // => Check whether `dest` is still a piping destination.
+      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+        debug('false write response, pause', src._readableState.awaitDrain);
+        src._readableState.awaitDrain++;
+        increasedAwaitDrain = true;
+      }
+      src.pause();
     }
   }
 
-  var base = '', array = false, braces = ['{', '}'];
-
-  // Make Array say that they are Array
-  if (isArray(value)) {
-    array = true;
-    braces = ['[', ']'];
+  // if the dest has an error, then stop piping into it.
+  // however, don't suppress the throwing behavior for this.
+  function onerror(er) {
+    debug('onerror', er);
+    unpipe();
+    dest.removeListener('error', onerror);
+    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
   }
 
-  // Make functions say that they are functions
-  if (isFunction(value)) {
-    var n = value.name ? ': ' + value.name : '';
-    base = ' [Function' + n + ']';
-  }
+  // Make sure our error handler is attached before userland ones.
+  prependListener(dest, 'error', onerror);
 
-  // Make RegExps say that they are RegExps
-  if (isRegExp(value)) {
-    base = ' ' + RegExp.prototype.toString.call(value);
+  // Both close and finish should trigger unpipe, but only once.
+  function onclose() {
+    dest.removeListener('finish', onfinish);
+    unpipe();
   }
-
-  // Make dates with properties first say the date
-  if (isDate(value)) {
-    base = ' ' + Date.prototype.toUTCString.call(value);
+  dest.once('close', onclose);
+  function onfinish() {
+    debug('onfinish');
+    dest.removeListener('close', onclose);
+    unpipe();
   }
+  dest.once('finish', onfinish);
 
-  // Make error with message first say the error
-  if (isError(value)) {
-    base = ' ' + formatError(value);
+  function unpipe() {
+    debug('unpipe');
+    src.unpipe(dest);
   }
 
-  if (keys.length === 0 && (!array || value.length == 0)) {
-    return braces[0] + base + braces[1];
+  // tell the dest that it's being piped to
+  dest.emit('pipe', src);
+
+  // start the flow if it hasn't been started already.
+  if (!state.flowing) {
+    debug('pipe resume');
+    src.resume();
   }
 
-  if (recurseTimes < 0) {
-    if (isRegExp(value)) {
-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
-    } else {
-      return ctx.stylize('[Object]', 'special');
+  return dest;
+};
+
+function pipeOnDrain(src) {
+  return function () {
+    var state = src._readableState;
+    debug('pipeOnDrain', state.awaitDrain);
+    if (state.awaitDrain) state.awaitDrain--;
+    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+      state.flowing = true;
+      flow(src);
     }
-  }
+  };
+}
 
-  ctx.seen.push(value);
+Readable.prototype.unpipe = function (dest) {
+  var state = this._readableState;
 
-  var output;
-  if (array) {
-    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
-  } else {
-    output = keys.map(function(key) {
-      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
-    });
-  }
+  // if we're not piping anywhere, then do nothing.
+  if (state.pipesCount === 0) return this;
 
-  ctx.seen.pop();
+  // just one destination.  most common case.
+  if (state.pipesCount === 1) {
+    // passed in one, but it's not the right one.
+    if (dest && dest !== state.pipes) return this;
 
-  return reduceToSingleString(output, base, braces);
-}
+    if (!dest) dest = state.pipes;
+
+    // got a match.
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    if (dest) dest.emit('unpipe', this);
+    return this;
+  }
 
+  // slow case. multiple pipe destinations.
 
-function formatPrimitive(ctx, value) {
-  if (isUndefined(value))
-    return ctx.stylize('undefined', 'undefined');
-  if (isString(value)) {
-    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
-                                             .replace(/'/g, "\\'")
-                                             .replace(/\\"/g, '"') + '\'';
-    return ctx.stylize(simple, 'string');
+  if (!dest) {
+    // remove all.
+    var dests = state.pipes;
+    var len = state.pipesCount;
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+
+    for (var _i = 0; _i < len; _i++) {
+      dests[_i].emit('unpipe', this);
+    }return this;
   }
-  if (isNumber(value))
-    return ctx.stylize('' + value, 'number');
-  if (isBoolean(value))
-    return ctx.stylize('' + value, 'boolean');
-  // For some reason typeof null is "object", so special case here.
-  if (isNull(value))
-    return ctx.stylize('null', 'null');
-}
 
+  // try to find the right one.
+  var i = indexOf(state.pipes, dest);
+  if (i === -1) return this;
 
-function formatError(value) {
-  return '[' + Error.prototype.toString.call(value) + ']';
-}
+  state.pipes.splice(i, 1);
+  state.pipesCount -= 1;
+  if (state.pipesCount === 1) state.pipes = state.pipes[0];
 
+  dest.emit('unpipe', this);
 
-function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
-  var output = [];
-  for (var i = 0, l = value.length; i < l; ++i) {
-    if (hasOwnProperty(value, String(i))) {
-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
-          String(i), true));
-    } else {
-      output.push('');
-    }
-  }
-  keys.forEach(function(key) {
-    if (!key.match(/^\d+$/)) {
-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
-          key, true));
-    }
-  });
-  return output;
-}
+  return this;
+};
 
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+  var res = Stream.prototype.on.call(this, ev, fn);
 
-function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
-  var name, str, desc;
-  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
-  if (desc.get) {
-    if (desc.set) {
-      str = ctx.stylize('[Getter/Setter]', 'special');
-    } else {
-      str = ctx.stylize('[Getter]', 'special');
-    }
-  } else {
-    if (desc.set) {
-      str = ctx.stylize('[Setter]', 'special');
-    }
-  }
-  if (!hasOwnProperty(visibleKeys, key)) {
-    name = '[' + key + ']';
-  }
-  if (!str) {
-    if (ctx.seen.indexOf(desc.value) < 0) {
-      if (isNull(recurseTimes)) {
-        str = formatValue(ctx, desc.value, null);
-      } else {
-        str = formatValue(ctx, desc.value, recurseTimes - 1);
-      }
-      if (str.indexOf('\n') > -1) {
-        if (array) {
-          str = str.split('\n').map(function(line) {
-            return '  ' + line;
-          }).join('\n').substr(2);
-        } else {
-          str = '\n' + str.split('\n').map(function(line) {
-            return '   ' + line;
-          }).join('\n');
-        }
+  if (ev === 'data') {
+    // Start flowing on next tick if stream isn't explicitly paused
+    if (this._readableState.flowing !== false) this.resume();
+  } else if (ev === 'readable') {
+    var state = this._readableState;
+    if (!state.endEmitted && !state.readableListening) {
+      state.readableListening = state.needReadable = true;
+      state.emittedReadable = false;
+      if (!state.reading) {
+        processNextTick(nReadingNextTick, this);
+      } else if (state.length) {
+        emitReadable(this, state);
       }
-    } else {
-      str = ctx.stylize('[Circular]', 'special');
-    }
-  }
-  if (isUndefined(name)) {
-    if (array && key.match(/^\d+$/)) {
-      return str;
-    }
-    name = JSON.stringify('' + key);
-    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
-      name = name.substr(1, name.length - 2);
-      name = ctx.stylize(name, 'name');
-    } else {
-      name = name.replace(/'/g, "\\'")
-                 .replace(/\\"/g, '"')
-                 .replace(/(^"|"$)/g, "'");
-      name = ctx.stylize(name, 'string');
     }
   }
 
-  return name + ': ' + str;
-}
-
+  return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
 
-function reduceToSingleString(output, base, braces) {
-  var numLinesEst = 0;
-  var length = output.reduce(function(prev, cur) {
-    numLinesEst++;
-    if (cur.indexOf('\n') >= 0) numLinesEst++;
-    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
-  }, 0);
+function nReadingNextTick(self) {
+  debug('readable nexttick read 0');
+  self.read(0);
+}
 
-  if (length > 60) {
-    return braces[0] +
-           (base === '' ? '' : base + '\n ') +
-           ' ' +
-           output.join(',\n  ') +
-           ' ' +
-           braces[1];
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+  var state = this._readableState;
+  if (!state.flowing) {
+    debug('resume');
+    state.flowing = true;
+    resume(this, state);
   }
+  return this;
+};
 
-  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+function resume(stream, state) {
+  if (!state.resumeScheduled) {
+    state.resumeScheduled = true;
+    processNextTick(resume_, stream, state);
+  }
 }
 
+function resume_(stream, state) {
+  if (!state.reading) {
+    debug('resume read 0');
+    stream.read(0);
+  }
 
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-function isArray(ar) {
-  return Array.isArray(ar);
+  state.resumeScheduled = false;
+  state.awaitDrain = 0;
+  stream.emit('resume');
+  flow(stream);
+  if (state.flowing && !state.reading) stream.read(0);
 }
-exports.isArray = isArray;
 
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
+Readable.prototype.pause = function () {
+  debug('call pause flowing=%j', this._readableState.flowing);
+  if (false !== this._readableState.flowing) {
+    debug('pause');
+    this._readableState.flowing = false;
+    this.emit('pause');
+  }
+  return this;
+};
 
-function isNull(arg) {
-  return arg === null;
+function flow(stream) {
+  var state = stream._readableState;
+  debug('flow', state.flowing);
+  while (state.flowing && stream.read() !== null) {}
 }
-exports.isNull = isNull;
 
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+  var state = this._readableState;
+  var paused = false;
 
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
+  var self = this;
+  stream.on('end', function () {
+    debug('wrapped end');
+    if (state.decoder && !state.ended) {
+      var chunk = state.decoder.end();
+      if (chunk && chunk.length) self.push(chunk);
+    }
 
-function isString(arg) {
-  return typeof arg === 'string';
-}
-exports.isString = isString;
+    self.push(null);
+  });
 
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
+  stream.on('data', function (chunk) {
+    debug('wrapped data');
+    if (state.decoder) chunk = state.decoder.write(chunk);
+
+    // don't skip over falsy values in objectMode
+    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+
+    var ret = self.push(chunk);
+    if (!ret) {
+      paused = true;
+      stream.pause();
+    }
+  });
+
+  // proxy all the other methods.
+  // important when wrapping filters and duplexes.
+  for (var i in stream) {
+    if (this[i] === undefined && typeof stream[i] === 'function') {
+      this[i] = function (method) {
+        return function () {
+          return stream[method].apply(stream, arguments);
+        };
+      }(i);
+    }
+  }
+
+  // proxy certain important events.
+  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
+  forEach(events, function (ev) {
+    stream.on(ev, self.emit.bind(self, ev));
+  });
+
+  // when we try to consume some more bytes, simply unpause the
+  // underlying stream.
+  self._read = function (n) {
+    debug('wrapped _read', n);
+    if (paused) {
+      paused = false;
+      stream.resume();
+    }
+  };
+
+  return self;
+};
+
+// exposed for testing purposes only.
+Readable._fromList = fromList;
+
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+  // nothing buffered
+  if (state.length === 0) return null;
+
+  var ret;
+  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+    // read it all, truncate the list
+    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+    state.buffer.clear();
+  } else {
+    // read part of list
+    ret = fromListPartial(n, state.buffer, state.decoder);
+  }
+
+  return ret;
 }
-exports.isSymbol = isSymbol;
 
-function isUndefined(arg) {
-  return arg === void 0;
+// Extracts only enough buffered data to satisfy the amount requested.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromListPartial(n, list, hasStrings) {
+  var ret;
+  if (n < list.head.data.length) {
+    // slice is the same for buffers and strings
+    ret = list.head.data.slice(0, n);
+    list.head.data = list.head.data.slice(n);
+  } else if (n === list.head.data.length) {
+    // first chunk is a perfect match
+    ret = list.shift();
+  } else {
+    // result spans more than one buffer
+    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
+  }
+  return ret;
 }
-exports.isUndefined = isUndefined;
 
-function isRegExp(re) {
-  return isObject(re) && objectToString(re) === '[object RegExp]';
+// Copies a specified amount of characters from the list of buffered data
+// chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBufferString(n, list) {
+  var p = list.head;
+  var c = 1;
+  var ret = p.data;
+  n -= ret.length;
+  while (p = p.next) {
+    var str = p.data;
+    var nb = n > str.length ? str.length : n;
+    if (nb === str.length) ret += str;else ret += str.slice(0, n);
+    n -= nb;
+    if (n === 0) {
+      if (nb === str.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = str.slice(nb);
+      }
+      break;
+    }
+    ++c;
+  }
+  list.length -= c;
+  return ret;
 }
-exports.isRegExp = isRegExp;
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
+// Copies a specified amount of bytes from the list of buffered data chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBuffer(n, list) {
+  var ret = bufferShim.allocUnsafe(n);
+  var p = list.head;
+  var c = 1;
+  p.data.copy(ret);
+  n -= p.data.length;
+  while (p = p.next) {
+    var buf = p.data;
+    var nb = n > buf.length ? buf.length : n;
+    buf.copy(ret, ret.length - n, 0, nb);
+    n -= nb;
+    if (n === 0) {
+      if (nb === buf.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = buf.slice(nb);
+      }
+      break;
+    }
+    ++c;
+  }
+  list.length -= c;
+  return ret;
 }
-exports.isObject = isObject;
 
-function isDate(d) {
-  return isObject(d) && objectToString(d) === '[object Date]';
+function endReadable(stream) {
+  var state = stream._readableState;
+
+  // If we get here before consuming all the bytes, then that is a
+  // bug in node.  Should never happen.
+  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
+
+  if (!state.endEmitted) {
+    state.ended = true;
+    processNextTick(endReadableNT, state, stream);
+  }
 }
-exports.isDate = isDate;
 
-function isError(e) {
-  return isObject(e) &&
-      (objectToString(e) === '[object Error]' || e instanceof Error);
+function endReadableNT(state, stream) {
+  // Check that we didn't get one last unshift.
+  if (!state.endEmitted && state.length === 0) {
+    state.endEmitted = true;
+    stream.readable = false;
+    stream.emit('end');
+  }
 }
-exports.isError = isError;
 
-function isFunction(arg) {
-  return typeof arg === 'function';
+function forEach(xs, f) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    f(xs[i], i);
+  }
 }
-exports.isFunction = isFunction;
 
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
+function indexOf(xs, x) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    if (xs[i] === x) return i;
+  }
+  return -1;
 }
-exports.isPrimitive = isPrimitive;
+}).call(this,require('_process'))
+},{"./_stream_duplex":69,"./internal/streams/BufferList":74,"_process":67,"buffer":44,"buffer-shims":43,"core-util-is":45,"events":48,"inherits":51,"isarray":53,"process-nextick-args":66,"string_decoder/":80,"util":40}],72:[function(require,module,exports){
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
 
-exports.isBuffer = require('./support/isBuffer');
+'use strict';
 
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
-}
+module.exports = Transform;
 
+var Duplex = require('./_stream_duplex');
 
-function pad(n) {
-  return n < 10 ? '0' + n.toString(10) : n.toString(10);
-}
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
+util.inherits(Transform, Duplex);
 
-var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
-              'Oct', 'Nov', 'Dec'];
+function TransformState(stream) {
+  this.afterTransform = function (er, data) {
+    return afterTransform(stream, er, data);
+  };
 
-// 26 Feb 16:19:34
-function timestamp() {
-  var d = new Date();
-  var time = [pad(d.getHours()),
-              pad(d.getMinutes()),
-              pad(d.getSeconds())].join(':');
-  return [d.getDate(), months[d.getMonth()], time].join(' ');
+  this.needTransform = false;
+  this.transforming = false;
+  this.writecb = null;
+  this.writechunk = null;
+  this.writeencoding = null;
 }
 
+function afterTransform(stream, er, data) {
+  var ts = stream._transformState;
+  ts.transforming = false;
 
-// log is just a thin wrapper to console.log that prepends a timestamp
-exports.log = function() {
-  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
-};
+  var cb = ts.writecb;
 
+  if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));
 
-/**
- * Inherit the prototype methods from one constructor into another.
- *
- * The Function.prototype.inherits from lang.js rewritten as a standalone
- * function (not on Function.prototype). NOTE: If this file is to be loaded
- * during bootstrapping this function needs to be rewritten using some native
- * functions as prototype setup using normal JavaScript does not work as
- * expected during bootstrapping (see mirror.js in r114903).
- *
- * @param {function} ctor Constructor function which needs to inherit the
- *     prototype.
- * @param {function} superCtor Constructor function to inherit prototype from.
- */
-exports.inherits = require('inherits');
+  ts.writechunk = null;
+  ts.writecb = null;
 
-exports._extend = function(origin, add) {
-  // Don't do anything if add isn't an object
-  if (!add || !isObject(add)) return origin;
+  if (data !== null && data !== undefined) stream.push(data);
 
-  var keys = Object.keys(add);
-  var i = keys.length;
-  while (i--) {
-    origin[keys[i]] = add[keys[i]];
-  }
-  return origin;
-};
+  cb(er);
 
-function hasOwnProperty(obj, prop) {
-  return Object.prototype.hasOwnProperty.call(obj, prop);
+  var rs = stream._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    stream._read(rs.highWaterMark);
+  }
 }
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":65,"_process":51,"inherits":48}],67:[function(require,module,exports){
-/* See LICENSE file for terms of use */
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
 
-/*
- * Text diff implementation.
- *
- * This library supports the following APIS:
- * JsDiff.diffChars: Character by character diff
- * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
- * JsDiff.diffLines: Line based diff
- *
- * JsDiff.diffCss: Diff targeted at CSS content
- *
- * These methods are based on the implementation proposed in
- * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
- * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
- */
-(function(global, undefined) {
-  var objectPrototypeToString = Object.prototype.toString;
+  Duplex.call(this, options);
 
-  /*istanbul ignore next*/
-  function map(arr, mapper, that) {
-    if (Array.prototype.map) {
-      return Array.prototype.map.call(arr, mapper, that);
-    }
+  this._transformState = new TransformState(this);
 
-    var other = new Array(arr.length);
+  // when the writable side finishes, then flush out anything remaining.
+  var stream = this;
 
-    for (var i = 0, n = arr.length; i < n; i++) {
-      other[i] = mapper.call(that, arr[i], i, arr);
-    }
-    return other;
-  }
-  function clonePath(path) {
-    return { newPos: path.newPos, components: path.components.slice(0) };
-  }
-  function removeEmpty(array) {
-    var ret = [];
-    for (var i = 0; i < array.length; i++) {
-      if (array[i]) {
-        ret.push(array[i]);
-      }
-    }
-    return ret;
-  }
-  function escapeHTML(s) {
-    var n = s;
-    n = n.replace(/&/g, '&amp;');
-    n = n.replace(/</g, '&lt;');
-    n = n.replace(/>/g, '&gt;');
-    n = n.replace(/"/g, '&quot;');
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
 
-    return n;
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
+
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
+
+    if (typeof options.flush === 'function') this._flush = options.flush;
   }
 
-  // This function handles the presence of circular references by bailing out when encountering an
-  // object that is already on the "stack" of items being processed.
-  function canonicalize(obj, stack, replacementStack) {
-    stack = stack || [];
-    replacementStack = replacementStack || [];
+  this.once('prefinish', function () {
+    if (typeof this._flush === 'function') this._flush(function (er) {
+      done(stream, er);
+    });else done(stream);
+  });
+}
 
-    var i;
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
 
-    for (i = 0; i < stack.length; i += 1) {
-      if (stack[i] === obj) {
-        return replacementStack[i];
-      }
-    }
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  throw new Error('Not implemented');
+};
 
-    var canonicalizedObj;
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
 
-    if ('[object Array]' === objectPrototypeToString.call(obj)) {
-      stack.push(obj);
-      canonicalizedObj = new Array(obj.length);
-      replacementStack.push(canonicalizedObj);
-      for (i = 0; i < obj.length; i += 1) {
-        canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack);
-      }
-      stack.pop();
-      replacementStack.pop();
-    } else if (typeof obj === 'object' && obj !== null) {
-      stack.push(obj);
-      canonicalizedObj = {};
-      replacementStack.push(canonicalizedObj);
-      var sortedKeys = [],
-          key;
-      for (key in obj) {
-        sortedKeys.push(key);
-      }
-      sortedKeys.sort();
-      for (i = 0; i < sortedKeys.length; i += 1) {
-        key = sortedKeys[i];
-        canonicalizedObj[key] = canonicalize(obj[key], stack, replacementStack);
-      }
-      stack.pop();
-      replacementStack.pop();
-    } else {
-      canonicalizedObj = obj;
-    }
-    return canonicalizedObj;
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
   }
+};
 
-  function buildValues(components, newString, oldString, useLongestToken) {
-    var componentPos = 0,
-        componentLen = components.length,
-        newPos = 0,
-        oldPos = 0;
+function done(stream, er) {
+  if (er) return stream.emit('error', er);
 
-    for (; componentPos < componentLen; componentPos++) {
-      var component = components[componentPos];
-      if (!component.removed) {
-        if (!component.added && useLongestToken) {
-          var value = newString.slice(newPos, newPos + component.count);
-          value = map(value, function(value, i) {
-            var oldValue = oldString[oldPos + i];
-            return oldValue.length > value.length ? oldValue : value;
-          });
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  var ws = stream._writableState;
+  var ts = stream._transformState;
 
-          component.value = value.join('');
-        } else {
-          component.value = newString.slice(newPos, newPos + component.count).join('');
-        }
-        newPos += component.count;
+  if (ws.length) throw new Error('Calling transform done when ws.length != 0');
 
-        // Common case
-        if (!component.added) {
-          oldPos += component.count;
-        }
-      } else {
-        component.value = oldString.slice(oldPos, oldPos + component.count).join('');
-        oldPos += component.count;
+  if (ts.transforming) throw new Error('Calling transform done when still transforming');
 
-        // Reverse add and remove so removes are output first to match common convention
-        // The diffing algorithm is tied to add then remove output and this is the simplest
-        // route to get the desired output with minimal overhead.
-        if (componentPos && components[componentPos - 1].added) {
-          var tmp = components[componentPos - 1];
-          components[componentPos - 1] = components[componentPos];
-          components[componentPos] = tmp;
-        }
-      }
-    }
+  return stream.push(null);
+}
+},{"./_stream_duplex":69,"core-util-is":45,"inherits":51}],73:[function(require,module,exports){
+(function (process){
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
 
-    return components;
-  }
+'use strict';
 
-  function Diff(ignoreWhitespace) {
-    this.ignoreWhitespace = ignoreWhitespace;
-  }
-  Diff.prototype = {
-    diff: function(oldString, newString, callback) {
-      var self = this;
+module.exports = Writable;
 
-      function done(value) {
-        if (callback) {
-          setTimeout(function() { callback(undefined, value); }, 0);
-          return true;
-        } else {
-          return value;
-        }
-      }
+/*<replacement>*/
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-      // Handle the identity case (this is due to unrolling editLength == 0
-      if (newString === oldString) {
-        return done([{ value: newString }]);
-      }
-      if (!newString) {
-        return done([{ value: oldString, removed: true }]);
-      }
-      if (!oldString) {
-        return done([{ value: newString, added: true }]);
-      }
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+/*</replacement>*/
 
-      newString = this.tokenize(newString);
-      oldString = this.tokenize(oldString);
+Writable.WritableState = WritableState;
 
-      var newLen = newString.length, oldLen = oldString.length;
-      var editLength = 1;
-      var maxEditLength = newLen + oldLen;
-      var bestPath = [{ newPos: -1, components: [] }];
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-      // Seed editLength = 0, i.e. the content starts with the same values
-      var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
-      if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-        // Identity per the equality and tokenizer
-        return done([{value: newString.join('')}]);
-      }
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
 
-      // Main worker method. checks all permutations of a given edit length for acceptance.
-      function execEditLength() {
-        for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
-          var basePath;
-          var addPath = bestPath[diagonalPath - 1],
-              removePath = bestPath[diagonalPath + 1],
-              oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
-          if (addPath) {
-            // No one else is going to attempt to use this value, clear it
-            bestPath[diagonalPath - 1] = undefined;
-          }
+/*<replacement>*/
+var Stream;
+(function () {
+  try {
+    Stream = require('st' + 'ream');
+  } catch (_) {} finally {
+    if (!Stream) Stream = require('events').EventEmitter;
+  }
+})();
+/*</replacement>*/
 
-          var canAdd = addPath && addPath.newPos + 1 < newLen,
-              canRemove = removePath && 0 <= oldPos && oldPos < oldLen;
-          if (!canAdd && !canRemove) {
-            // If this path is a terminal then prune
-            bestPath[diagonalPath] = undefined;
-            continue;
-          }
+var Buffer = require('buffer').Buffer;
+/*<replacement>*/
+var bufferShim = require('buffer-shims');
+/*</replacement>*/
 
-          // Select the diagonal that we want to branch from. We select the prior
-          // path whose position in the new string is the farthest from the origin
-          // and does not pass the bounds of the diff graph
-          if (!canAdd || (canRemove && addPath.newPos < removePath.newPos)) {
-            basePath = clonePath(removePath);
-            self.pushComponent(basePath.components, undefined, true);
-          } else {
-            basePath = addPath;   // No need to clone, we've pulled it from the list
-            basePath.newPos++;
-            self.pushComponent(basePath.components, true, undefined);
-          }
+util.inherits(Writable, Stream);
 
-          oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);
+function nop() {}
 
-          // If we have hit the end of both strings, then we are done
-          if (basePath.newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-            return done(buildValues(basePath.components, newString, oldString, self.useLongestToken));
-          } else {
-            // Otherwise track this path as a potential candidate and continue.
-            bestPath[diagonalPath] = basePath;
-          }
-        }
-
-        editLength++;
-      }
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
 
-      // Performs the length of edit iteration. Is a bit fugly as this has to support the
-      // sync and async mode which is never fun. Loops over execEditLength until a value
-      // is produced.
-      if (callback) {
-        (function exec() {
-          setTimeout(function() {
-            // This should not happen, but we want to be safe.
-            /*istanbul ignore next */
-            if (editLength > maxEditLength) {
-              return callback();
-            }
+var Duplex;
+function WritableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-            if (!execEditLength()) {
-              exec();
-            }
-          }, 0);
-        }());
-      } else {
-        while (editLength <= maxEditLength) {
-          var ret = execEditLength();
-          if (ret) {
-            return ret;
-          }
-        }
-      }
-    },
+  options = options || {};
 
-    pushComponent: function(components, added, removed) {
-      var last = components[components.length - 1];
-      if (last && last.added === added && last.removed === removed) {
-        // We need to clone here as the component clone operation is just
-        // as shallow array clone
-        components[components.length - 1] = {count: last.count + 1, added: added, removed: removed };
-      } else {
-        components.push({count: 1, added: added, removed: removed });
-      }
-    },
-    extractCommon: function(basePath, newString, oldString, diagonalPath) {
-      var newLen = newString.length,
-          oldLen = oldString.length,
-          newPos = basePath.newPos,
-          oldPos = newPos - diagonalPath,
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
 
-          commonCount = 0;
-      while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
-        newPos++;
-        oldPos++;
-        commonCount++;
-      }
+  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
 
-      if (commonCount) {
-        basePath.components.push({count: commonCount});
-      }
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  var hwm = options.highWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
 
-      basePath.newPos = newPos;
-      return oldPos;
-    },
+  // cast to ints.
+  this.highWaterMark = ~ ~this.highWaterMark;
 
-    equals: function(left, right) {
-      var reWhitespace = /\S/;
-      return left === right || (this.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right));
-    },
-    tokenize: function(value) {
-      return value.split('');
-    }
-  };
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
 
-  var CharDiff = new Diff();
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
 
-  var WordDiff = new Diff(true);
-  var WordWithSpaceDiff = new Diff();
-  WordDiff.tokenize = WordWithSpaceDiff.tokenize = function(value) {
-    return removeEmpty(value.split(/(\s+|\b)/));
-  };
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-  var CssDiff = new Diff(true);
-  CssDiff.tokenize = function(value) {
-    return removeEmpty(value.split(/([{}:;,]|\s+)/));
-  };
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
 
-  var LineDiff = new Diff();
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
 
-  var TrimmedLineDiff = new Diff();
-  TrimmedLineDiff.ignoreTrim = true;
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
 
-  LineDiff.tokenize = TrimmedLineDiff.tokenize = function(value) {
-    var retLines = [],
-        lines = value.split(/^/m);
-    for (var i = 0; i < lines.length; i++) {
-      var line = lines[i],
-          lastLine = lines[i - 1],
-          lastLineLastChar = lastLine && lastLine[lastLine.length - 1];
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
 
-      // Merge lines that may contain windows new lines
-      if (line === '\n' && lastLineLastChar === '\r') {
-          retLines[retLines.length - 1] = retLines[retLines.length - 1].slice(0, -1) + '\r\n';
-      } else {
-        if (this.ignoreTrim) {
-          line = line.trim();
-          // add a newline unless this is the last line.
-          if (i < lines.length - 1) {
-            line += '\n';
-          }
-        }
-        retLines.push(line);
-      }
-    }
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
 
-    return retLines;
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
   };
 
-  var PatchDiff = new Diff();
-  PatchDiff.tokenize = function(value) {
-    var ret = [],
-        linesAndNewlines = value.split(/(\n|\r\n)/);
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
 
-    // Ignore the final empty token that occurs if the string ends with a new line
-    if (!linesAndNewlines[linesAndNewlines.length - 1]) {
-      linesAndNewlines.pop();
-    }
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
 
-    // Merge the content and line separators into single tokens
-    for (var i = 0; i < linesAndNewlines.length; i++) {
-      var line = linesAndNewlines[i];
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
 
-      if (i % 2) {
-        ret[ret.length - 1] += line;
-      } else {
-        ret.push(line);
-      }
-    }
-    return ret;
-  };
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
 
-  var SentenceDiff = new Diff();
-  SentenceDiff.tokenize = function(value) {
-    return removeEmpty(value.split(/(\S.+?[.!?])(?=\s+|$)/));
-  };
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
 
-  var JsonDiff = new Diff();
-  // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
-  // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
-  JsonDiff.useLongestToken = true;
-  JsonDiff.tokenize = LineDiff.tokenize;
-  JsonDiff.equals = function(left, right) {
-    return LineDiff.equals(left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
-  };
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
 
-  var JsDiff = {
-    Diff: Diff,
+  // count buffered requests
+  this.bufferedRequestCount = 0;
 
-    diffChars: function(oldStr, newStr, callback) { return CharDiff.diff(oldStr, newStr, callback); },
-    diffWords: function(oldStr, newStr, callback) { return WordDiff.diff(oldStr, newStr, callback); },
-    diffWordsWithSpace: function(oldStr, newStr, callback) { return WordWithSpaceDiff.diff(oldStr, newStr, callback); },
-    diffLines: function(oldStr, newStr, callback) { return LineDiff.diff(oldStr, newStr, callback); },
-    diffTrimmedLines: function(oldStr, newStr, callback) { return TrimmedLineDiff.diff(oldStr, newStr, callback); },
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
 
-    diffSentences: function(oldStr, newStr, callback) { return SentenceDiff.diff(oldStr, newStr, callback); },
+WritableState.prototype.getBuffer = function writableStateGetBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
 
-    diffCss: function(oldStr, newStr, callback) { return CssDiff.diff(oldStr, newStr, callback); },
-    diffJson: function(oldObj, newObj, callback) {
-      return JsonDiff.diff(
-        typeof oldObj === 'string' ? oldObj : JSON.stringify(canonicalize(oldObj), undefined, '  '),
-        typeof newObj === 'string' ? newObj : JSON.stringify(canonicalize(newObj), undefined, '  '),
-        callback
-      );
-    },
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function () {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.')
+    });
+  } catch (_) {}
+})();
 
-    createTwoFilesPatch: function(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader) {
-      var ret = [];
+var Duplex;
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-      if (oldFileName == newFileName) {
-        ret.push('Index: ' + oldFileName);
-      }
-      ret.push('===================================================================');
-      ret.push('--- ' + oldFileName + (typeof oldHeader === 'undefined' ? '' : '\t' + oldHeader));
-      ret.push('+++ ' + newFileName + (typeof newHeader === 'undefined' ? '' : '\t' + newHeader));
+  // Writable ctor is applied to Duplexes, though they're not
+  // instanceof Writable, they're instanceof Readable.
+  if (!(this instanceof Writable) && !(this instanceof Duplex)) return new Writable(options);
 
-      var diff = PatchDiff.diff(oldStr, newStr);
-      diff.push({value: '', lines: []});   // Append an empty value to make cleanup easier
+  this._writableState = new WritableState(options, this);
 
-      // Formats a given set of lines for printing as context lines in a patch
-      function contextLines(lines) {
-        return map(lines, function(entry) { return ' ' + entry; });
-      }
+  // legacy.
+  this.writable = true;
 
-      // Outputs the no newline at end of file warning if needed
-      function eofNL(curRange, i, current) {
-        var last = diff[diff.length - 2],
-            isLast = i === diff.length - 2,
-            isLastOfType = i === diff.length - 3 && current.added !== last.added;
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
 
-        // Figure out if this is the last line for the given file and missing NL
-        if (!(/\n$/.test(current.value)) && (isLast || isLastOfType)) {
-          curRange.push('\\ No newline at end of file');
-        }
-      }
+    if (typeof options.writev === 'function') this._writev = options.writev;
+  }
 
-      var oldRangeStart = 0, newRangeStart = 0, curRange = [],
-          oldLine = 1, newLine = 1;
-      for (var i = 0; i < diff.length; i++) {
-        var current = diff[i],
-            lines = current.lines || current.value.replace(/\n$/, '').split('\n');
-        current.lines = lines;
+  Stream.call(this);
+}
 
-        if (current.added || current.removed) {
-          // If we have previous context, start with that
-          if (!oldRangeStart) {
-            var prev = diff[i - 1];
-            oldRangeStart = oldLine;
-            newRangeStart = newLine;
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  this.emit('error', new Error('Cannot pipe, not readable'));
+};
+
+function writeAfterEnd(stream, cb) {
+  var er = new Error('write after end');
+  // TODO: defer error events consistently everywhere, not just the cb
+  stream.emit('error', er);
+  processNextTick(cb, er);
+}
+
+// If we get something that is not a buffer, string, null, or undefined,
+// and we're not in objectMode, then that's an error.
+// Otherwise stream chunks are all considered to be of length=1, and the
+// watermarks determine how many objects to keep in the buffer, rather than
+// how many bytes or characters.
+function validChunk(stream, state, chunk, cb) {
+  var valid = true;
+  var er = false;
+  // Always throw error if a null is written
+  // if we are not in object mode then throw
+  // if it is not a buffer, string, or undefined.
+  if (chunk === null) {
+    er = new TypeError('May not write null values to stream');
+  } else if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  if (er) {
+    stream.emit('error', er);
+    processNextTick(cb, er);
+    valid = false;
+  }
+  return valid;
+}
+
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (Buffer.isBuffer(chunk)) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+
+  if (typeof cb !== 'function') cb = nop;
+
+  if (state.ended) writeAfterEnd(this, cb);else if (validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, chunk, encoding, cb);
+  }
+
+  return ret;
+};
+
+Writable.prototype.cork = function () {
+  var state = this._writableState;
+
+  state.corked++;
+};
+
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
+
+  if (state.corked) {
+    state.corked--;
+
+    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
+
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
+
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = bufferShim.from(chunk, encoding);
+  }
+  return chunk;
+}
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, chunk, encoding, cb) {
+  chunk = decodeChunk(state, chunk, encoding);
+
+  if (Buffer.isBuffer(chunk)) encoding = 'buffer';
+  var len = state.objectMode ? 1 : chunk.length;
+
+  state.length += len;
+
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
+
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
+
+  return ret;
+}
+
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
+
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+  if (sync) processNextTick(cb, er);else cb(er);
+
+  stream._writableState.errorEmitted = true;
+  stream.emit('error', er);
+}
+
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
+
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
+
+  onwriteStateUpdate(state);
+
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state);
+
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
+
+    if (sync) {
+      /*<replacement>*/
+      asyncWrite(afterWrite, stream, state, finished, cb);
+      /*</replacement>*/
+    } else {
+        afterWrite(stream, state, finished, cb);
+      }
+  }
+}
+
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
+
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
+
+    var count = 0;
+    while (entry) {
+      buffer[count] = entry;
+      entry = entry.next;
+      count += 1;
+    }
+
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
+
+    if (entry === null) state.lastBufferedRequest = null;
+  }
+
+  state.bufferedRequestCount = 0;
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
+
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new Error('not implemented'));
+};
+
+Writable.prototype._writev = null;
+
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
+
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
+
+  // ignore unnecessary end() calls.
+  if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
+
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+
+function prefinish(stream, state) {
+  if (!state.prefinished) {
+    state.prefinished = true;
+    stream.emit('prefinish');
+  }
+}
+
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    if (state.pendingcb === 0) {
+      prefinish(stream, state);
+      state.finished = true;
+      stream.emit('finish');
+    } else {
+      prefinish(stream, state);
+    }
+  }
+  return need;
+}
+
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) processNextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+
+  this.next = null;
+  this.entry = null;
+
+  this.finish = function (err) {
+    var entry = _this.entry;
+    _this.entry = null;
+    while (entry) {
+      var cb = entry.callback;
+      state.pendingcb--;
+      cb(err);
+      entry = entry.next;
+    }
+    if (state.corkedRequestsFree) {
+      state.corkedRequestsFree.next = _this;
+    } else {
+      state.corkedRequestsFree = _this;
+    }
+  };
+}
+}).call(this,require('_process'))
+},{"./_stream_duplex":69,"_process":67,"buffer":44,"buffer-shims":43,"core-util-is":45,"events":48,"inherits":51,"process-nextick-args":66,"util-deprecate":81}],74:[function(require,module,exports){
+'use strict';
+
+var Buffer = require('buffer').Buffer;
+/*<replacement>*/
+var bufferShim = require('buffer-shims');
+/*</replacement>*/
+
+module.exports = BufferList;
+
+function BufferList() {
+  this.head = null;
+  this.tail = null;
+  this.length = 0;
+}
+
+BufferList.prototype.push = function (v) {
+  var entry = { data: v, next: null };
+  if (this.length > 0) this.tail.next = entry;else this.head = entry;
+  this.tail = entry;
+  ++this.length;
+};
+
+BufferList.prototype.unshift = function (v) {
+  var entry = { data: v, next: this.head };
+  if (this.length === 0) this.tail = entry;
+  this.head = entry;
+  ++this.length;
+};
+
+BufferList.prototype.shift = function () {
+  if (this.length === 0) return;
+  var ret = this.head.data;
+  if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+  --this.length;
+  return ret;
+};
+
+BufferList.prototype.clear = function () {
+  this.head = this.tail = null;
+  this.length = 0;
+};
+
+BufferList.prototype.join = function (s) {
+  if (this.length === 0) return '';
+  var p = this.head;
+  var ret = '' + p.data;
+  while (p = p.next) {
+    ret += s + p.data;
+  }return ret;
+};
+
+BufferList.prototype.concat = function (n) {
+  if (this.length === 0) return bufferShim.alloc(0);
+  if (this.length === 1) return this.head.data;
+  var ret = bufferShim.allocUnsafe(n >>> 0);
+  var p = this.head;
+  var i = 0;
+  while (p) {
+    p.data.copy(ret, i);
+    i += p.data.length;
+    p = p.next;
+  }
+  return ret;
+};
+},{"buffer":44,"buffer-shims":43}],75:[function(require,module,exports){
+module.exports = require("./lib/_stream_passthrough.js")
+
+},{"./lib/_stream_passthrough.js":70}],76:[function(require,module,exports){
+(function (process){
+var Stream = (function (){
+  try {
+    return require('st' + 'ream'); // hack to fix a circular dependency issue when used with browserify
+  } catch(_){}
+}());
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = Stream || exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
+
+if (!process.browser && process.env.READABLE_STREAM === 'disable' && Stream) {
+  module.exports = Stream;
+}
+
+}).call(this,require('_process'))
+},{"./lib/_stream_duplex.js":69,"./lib/_stream_passthrough.js":70,"./lib/_stream_readable.js":71,"./lib/_stream_transform.js":72,"./lib/_stream_writable.js":73,"_process":67}],77:[function(require,module,exports){
+module.exports = require("./lib/_stream_transform.js")
+
+},{"./lib/_stream_transform.js":72}],78:[function(require,module,exports){
+module.exports = require("./lib/_stream_writable.js")
+
+},{"./lib/_stream_writable.js":73}],79:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+module.exports = Stream;
+
+var EE = require('events').EventEmitter;
+var inherits = require('inherits');
+
+inherits(Stream, EE);
+Stream.Readable = require('readable-stream/readable.js');
+Stream.Writable = require('readable-stream/writable.js');
+Stream.Duplex = require('readable-stream/duplex.js');
+Stream.Transform = require('readable-stream/transform.js');
+Stream.PassThrough = require('readable-stream/passthrough.js');
+
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
+
+
+
+// old-style streams.  Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
+
+function Stream() {
+  EE.call(this);
+}
+
+Stream.prototype.pipe = function(dest, options) {
+  var source = this;
+
+  function ondata(chunk) {
+    if (dest.writable) {
+      if (false === dest.write(chunk) && source.pause) {
+        source.pause();
+      }
+    }
+  }
+
+  source.on('data', ondata);
+
+  function ondrain() {
+    if (source.readable && source.resume) {
+      source.resume();
+    }
+  }
+
+  dest.on('drain', ondrain);
+
+  // If the 'end' option is not supplied, dest.end() will be called when
+  // source gets the 'end' or 'close' events.  Only dest.end() once.
+  if (!dest._isStdio && (!options || options.end !== false)) {
+    source.on('end', onend);
+    source.on('close', onclose);
+  }
+
+  var didOnEnd = false;
+  function onend() {
+    if (didOnEnd) return;
+    didOnEnd = true;
+
+    dest.end();
+  }
+
+
+  function onclose() {
+    if (didOnEnd) return;
+    didOnEnd = true;
+
+    if (typeof dest.destroy === 'function') dest.destroy();
+  }
+
+  // don't leave dangling pipes when there are errors.
+  function onerror(er) {
+    cleanup();
+    if (EE.listenerCount(this, 'error') === 0) {
+      throw er; // Unhandled stream error in pipe.
+    }
+  }
+
+  source.on('error', onerror);
+  dest.on('error', onerror);
+
+  // remove all the event listeners that were added.
+  function cleanup() {
+    source.removeListener('data', ondata);
+    dest.removeListener('drain', ondrain);
+
+    source.removeListener('end', onend);
+    source.removeListener('close', onclose);
+
+    source.removeListener('error', onerror);
+    dest.removeListener('error', onerror);
+
+    source.removeListener('end', cleanup);
+    source.removeListener('close', cleanup);
+
+    dest.removeListener('close', cleanup);
+  }
+
+  source.on('end', cleanup);
+  source.on('close', cleanup);
+
+  dest.on('close', cleanup);
+
+  dest.emit('pipe', source);
+
+  // Allow for unix-like usage: A.pipe(B).pipe(C)
+  return dest;
+};
+
+},{"events":48,"inherits":51,"readable-stream/duplex.js":68,"readable-stream/passthrough.js":75,"readable-stream/readable.js":76,"readable-stream/transform.js":77,"readable-stream/writable.js":78}],80:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var Buffer = require('buffer').Buffer;
+
+var isBufferEncoding = Buffer.isEncoding
+  || function(encoding) {
+       switch (encoding && encoding.toLowerCase()) {
+         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
+         default: return false;
+       }
+     }
+
+
+function assertEncoding(encoding) {
+  if (encoding && !isBufferEncoding(encoding)) {
+    throw new Error('Unknown encoding: ' + encoding);
+  }
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters. CESU-8 is handled as part of the UTF-8 encoding.
+//
+// @TODO Handling all encodings inside a single object makes it very difficult
+// to reason about this code, so it should be split up in the future.
+// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
+// points as used by CESU-8.
+var StringDecoder = exports.StringDecoder = function(encoding) {
+  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
+  assertEncoding(encoding);
+  switch (this.encoding) {
+    case 'utf8':
+      // CESU-8 represents each of Surrogate Pair by 3-bytes
+      this.surrogateSize = 3;
+      break;
+    case 'ucs2':
+    case 'utf16le':
+      // UTF-16 represents each of Surrogate Pair by 2-bytes
+      this.surrogateSize = 2;
+      this.detectIncompleteChar = utf16DetectIncompleteChar;
+      break;
+    case 'base64':
+      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
+      this.surrogateSize = 3;
+      this.detectIncompleteChar = base64DetectIncompleteChar;
+      break;
+    default:
+      this.write = passThroughWrite;
+      return;
+  }
+
+  // Enough space to store all bytes of a single character. UTF-8 needs 4
+  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
+  this.charBuffer = new Buffer(6);
+  // Number of bytes received for the current incomplete multi-byte character.
+  this.charReceived = 0;
+  // Number of bytes expected for the current incomplete multi-byte character.
+  this.charLength = 0;
+};
+
+
+// write decodes the given buffer and returns it as JS string that is
+// guaranteed to not contain any partial multi-byte characters. Any partial
+// character found at the end of the buffer is buffered up, and will be
+// returned when calling write again with the remaining bytes.
+//
+// Note: Converting a Buffer containing an orphan surrogate to a String
+// currently works, but converting a String to a Buffer (via `new Buffer`, or
+// Buffer#write) will replace incomplete surrogates with the unicode
+// replacement character. See https://codereview.chromium.org/121173009/ .
+StringDecoder.prototype.write = function(buffer) {
+  var charStr = '';
+  // if our last write ended with an incomplete multibyte character
+  while (this.charLength) {
+    // determine how many remaining bytes this buffer has to offer for this char
+    var available = (buffer.length >= this.charLength - this.charReceived) ?
+        this.charLength - this.charReceived :
+        buffer.length;
+
+    // add the new bytes to the char buffer
+    buffer.copy(this.charBuffer, this.charReceived, 0, available);
+    this.charReceived += available;
+
+    if (this.charReceived < this.charLength) {
+      // still not enough chars in this buffer? wait for more ...
+      return '';
+    }
+
+    // remove bytes belonging to the current character from the buffer
+    buffer = buffer.slice(available, buffer.length);
+
+    // get the character that was split
+    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+
+    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
+    var charCode = charStr.charCodeAt(charStr.length - 1);
+    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+      this.charLength += this.surrogateSize;
+      charStr = '';
+      continue;
+    }
+    this.charReceived = this.charLength = 0;
+
+    // if there are no more bytes in this buffer, just emit our char
+    if (buffer.length === 0) {
+      return charStr;
+    }
+    break;
+  }
+
+  // determine and set charLength / charReceived
+  this.detectIncompleteChar(buffer);
+
+  var end = buffer.length;
+  if (this.charLength) {
+    // buffer the incomplete character bytes we got
+    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
+    end -= this.charReceived;
+  }
+
+  charStr += buffer.toString(this.encoding, 0, end);
+
+  var end = charStr.length - 1;
+  var charCode = charStr.charCodeAt(end);
+  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
+  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+    var size = this.surrogateSize;
+    this.charLength += size;
+    this.charReceived += size;
+    this.charBuffer.copy(this.charBuffer, size, 0, size);
+    buffer.copy(this.charBuffer, 0, 0, size);
+    return charStr.substring(0, end);
+  }
+
+  // or just emit the charStr
+  return charStr;
+};
+
+// detectIncompleteChar determines if there is an incomplete UTF-8 character at
+// the end of the given buffer. If so, it sets this.charLength to the byte
+// length that character, and sets this.charReceived to the number of bytes
+// that are available for this character.
+StringDecoder.prototype.detectIncompleteChar = function(buffer) {
+  // determine how many bytes we have to check at the end of this buffer
+  var i = (buffer.length >= 3) ? 3 : buffer.length;
+
+  // Figure out if one of the last i bytes of our buffer announces an
+  // incomplete char.
+  for (; i > 0; i--) {
+    var c = buffer[buffer.length - i];
+
+    // See http://en.wikipedia.org/wiki/UTF-8#Description
+
+    // 110XXXXX
+    if (i == 1 && c >> 5 == 0x06) {
+      this.charLength = 2;
+      break;
+    }
+
+    // 1110XXXX
+    if (i <= 2 && c >> 4 == 0x0E) {
+      this.charLength = 3;
+      break;
+    }
+
+    // 11110XXX
+    if (i <= 3 && c >> 3 == 0x1E) {
+      this.charLength = 4;
+      break;
+    }
+  }
+  this.charReceived = i;
+};
+
+StringDecoder.prototype.end = function(buffer) {
+  var res = '';
+  if (buffer && buffer.length)
+    res = this.write(buffer);
+
+  if (this.charReceived) {
+    var cr = this.charReceived;
+    var buf = this.charBuffer;
+    var enc = this.encoding;
+    res += buf.slice(0, cr).toString(enc);
+  }
+
+  return res;
+};
+
+function passThroughWrite(buffer) {
+  return buffer.toString(this.encoding);
+}
+
+function utf16DetectIncompleteChar(buffer) {
+  this.charReceived = buffer.length % 2;
+  this.charLength = this.charReceived ? 2 : 0;
+}
 
-            if (prev) {
-              curRange = contextLines(prev.lines.slice(-4));
-              oldRangeStart -= curRange.length;
-              newRangeStart -= curRange.length;
-            }
-          }
+function base64DetectIncompleteChar(buffer) {
+  this.charReceived = buffer.length % 3;
+  this.charLength = this.charReceived ? 3 : 0;
+}
 
-          // Output our changes
-          curRange.push.apply(curRange, map(lines, function(entry) {
-            return (current.added ? '+' : '-') + entry;
-          }));
-          eofNL(curRange, i, current);
+},{"buffer":44}],81:[function(require,module,exports){
+(function (global){
 
-          // Track the updated file position
-          if (current.added) {
-            newLine += lines.length;
-          } else {
-            oldLine += lines.length;
-          }
-        } else {
-          // Identical context lines. Track line changes
-          if (oldRangeStart) {
-            // Close out any changes that have been output (or join overlapping)
-            if (lines.length <= 8 && i < diff.length - 2) {
-              // Overlapping
-              curRange.push.apply(curRange, contextLines(lines));
-            } else {
-              // end the range and output
-              var contextSize = Math.min(lines.length, 4);
-              ret.push(
-                  '@@ -' + oldRangeStart + ',' + (oldLine - oldRangeStart + contextSize)
-                  + ' +' + newRangeStart + ',' + (newLine - newRangeStart + contextSize)
-                  + ' @@');
-              ret.push.apply(ret, curRange);
-              ret.push.apply(ret, contextLines(lines.slice(0, contextSize)));
-              if (lines.length <= 4) {
-                eofNL(ret, i, current);
-              }
+/**
+ * Module exports.
+ */
+
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+  if (config('noDeprecation')) {
+    return fn;
+  }
+
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (config('throwDeprecation')) {
+        throw new Error(msg);
+      } else if (config('traceDeprecation')) {
+        console.trace(msg);
+      } else {
+        console.warn(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
+}
+
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
+
+function config (name) {
+  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+  try {
+    if (!global.localStorage) return false;
+  } catch (_) {
+    return false;
+  }
+  var val = global.localStorage[name];
+  if (null == val) return false;
+  return String(val).toLowerCase() === 'true';
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],82:[function(require,module,exports){
+arguments[4][51][0].apply(exports,arguments)
+},{"dup":51}],83:[function(require,module,exports){
+module.exports = function isBuffer(arg) {
+  return arg && typeof arg === 'object'
+    && typeof arg.copy === 'function'
+    && typeof arg.fill === 'function'
+    && typeof arg.readUInt8 === 'function';
+}
+},{}],84:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var formatRegExp = /%[sdj%]/g;
+exports.format = function(f) {
+  if (!isString(f)) {
+    var objects = [];
+    for (var i = 0; i < arguments.length; i++) {
+      objects.push(inspect(arguments[i]));
+    }
+    return objects.join(' ');
+  }
+
+  var i = 1;
+  var args = arguments;
+  var len = args.length;
+  var str = String(f).replace(formatRegExp, function(x) {
+    if (x === '%%') return '%';
+    if (i >= len) return x;
+    switch (x) {
+      case '%s': return String(args[i++]);
+      case '%d': return Number(args[i++]);
+      case '%j':
+        try {
+          return JSON.stringify(args[i++]);
+        } catch (_) {
+          return '[Circular]';
+        }
+      default:
+        return x;
+    }
+  });
+  for (var x = args[i]; i < len; x = args[++i]) {
+    if (isNull(x) || !isObject(x)) {
+      str += ' ' + x;
+    } else {
+      str += ' ' + inspect(x);
+    }
+  }
+  return str;
+};
+
+
+// Mark that a method should not be used.
+// Returns a modified function which warns once by default.
+// If --no-deprecation is set, then it is a no-op.
+exports.deprecate = function(fn, msg) {
+  // Allow for deprecating things in the process of starting up.
+  if (isUndefined(global.process)) {
+    return function() {
+      return exports.deprecate(fn, msg).apply(this, arguments);
+    };
+  }
+
+  if (process.noDeprecation === true) {
+    return fn;
+  }
+
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (process.throwDeprecation) {
+        throw new Error(msg);
+      } else if (process.traceDeprecation) {
+        console.trace(msg);
+      } else {
+        console.error(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
+};
+
+
+var debugs = {};
+var debugEnviron;
+exports.debuglog = function(set) {
+  if (isUndefined(debugEnviron))
+    debugEnviron = process.env.NODE_DEBUG || '';
+  set = set.toUpperCase();
+  if (!debugs[set]) {
+    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
+      var pid = process.pid;
+      debugs[set] = function() {
+        var msg = exports.format.apply(exports, arguments);
+        console.error('%s %d: %s', set, pid, msg);
+      };
+    } else {
+      debugs[set] = function() {};
+    }
+  }
+  return debugs[set];
+};
+
+
+/**
+ * Echos the value of a value. Trys to print the value out
+ * in the best way possible given the different types.
+ *
+ * @param {Object} obj The object to print out.
+ * @param {Object} opts Optional options object that alters the output.
+ */
+/* legacy: obj, showHidden, depth, colors*/
+function inspect(obj, opts) {
+  // default options
+  var ctx = {
+    seen: [],
+    stylize: stylizeNoColor
+  };
+  // legacy...
+  if (arguments.length >= 3) ctx.depth = arguments[2];
+  if (arguments.length >= 4) ctx.colors = arguments[3];
+  if (isBoolean(opts)) {
+    // legacy...
+    ctx.showHidden = opts;
+  } else if (opts) {
+    // got an "options" object
+    exports._extend(ctx, opts);
+  }
+  // set default options
+  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
+  if (isUndefined(ctx.depth)) ctx.depth = 2;
+  if (isUndefined(ctx.colors)) ctx.colors = false;
+  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
+  if (ctx.colors) ctx.stylize = stylizeWithColor;
+  return formatValue(ctx, obj, ctx.depth);
+}
+exports.inspect = inspect;
+
+
+// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+inspect.colors = {
+  'bold' : [1, 22],
+  'italic' : [3, 23],
+  'underline' : [4, 24],
+  'inverse' : [7, 27],
+  'white' : [37, 39],
+  'grey' : [90, 39],
+  'black' : [30, 39],
+  'blue' : [34, 39],
+  'cyan' : [36, 39],
+  'green' : [32, 39],
+  'magenta' : [35, 39],
+  'red' : [31, 39],
+  'yellow' : [33, 39]
+};
 
-              oldRangeStart = 0;
-              newRangeStart = 0;
-              curRange = [];
-            }
-          }
-          oldLine += lines.length;
-          newLine += lines.length;
-        }
-      }
+// Don't use 'blue' not visible on cmd.exe
+inspect.styles = {
+  'special': 'cyan',
+  'number': 'yellow',
+  'boolean': 'yellow',
+  'undefined': 'grey',
+  'null': 'bold',
+  'string': 'green',
+  'date': 'magenta',
+  // "name": intentionally not styling
+  'regexp': 'red'
+};
 
-      return ret.join('\n') + '\n';
-    },
 
-    createPatch: function(fileName, oldStr, newStr, oldHeader, newHeader) {
-      return JsDiff.createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader);
-    },
+function stylizeWithColor(str, styleType) {
+  var style = inspect.styles[styleType];
 
-    applyPatch: function(oldStr, uniDiff) {
-      var diffstr = uniDiff.split('\n'),
-          hunks = [],
-          i = 0,
-          remEOFNL = false,
-          addEOFNL = false;
+  if (style) {
+    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
+           '\u001b[' + inspect.colors[style][1] + 'm';
+  } else {
+    return str;
+  }
+}
 
-      // Skip to the first change hunk
-      while (i < diffstr.length && !(/^@@/.test(diffstr[i]))) {
-        i++;
-      }
 
-      // Parse the unified diff
-      for (; i < diffstr.length; i++) {
-        if (diffstr[i][0] === '@') {
-          var chnukHeader = diffstr[i].split(/@@ -(\d+),(\d+) \+(\d+),(\d+) @@/);
-          hunks.unshift({
-            start: chnukHeader[3],
-            oldlength: +chnukHeader[2],
-            removed: [],
-            newlength: chnukHeader[4],
-            added: []
-          });
-        } else if (diffstr[i][0] === '+') {
-          hunks[0].added.push(diffstr[i].substr(1));
-        } else if (diffstr[i][0] === '-') {
-          hunks[0].removed.push(diffstr[i].substr(1));
-        } else if (diffstr[i][0] === ' ') {
-          hunks[0].added.push(diffstr[i].substr(1));
-          hunks[0].removed.push(diffstr[i].substr(1));
-        } else if (diffstr[i][0] === '\\') {
-          if (diffstr[i - 1][0] === '+') {
-            remEOFNL = true;
-          } else if (diffstr[i - 1][0] === '-') {
-            addEOFNL = true;
-          }
-        }
-      }
+function stylizeNoColor(str, styleType) {
+  return str;
+}
 
-      // Apply the diff to the input
-      var lines = oldStr.split('\n');
-      for (i = hunks.length - 1; i >= 0; i--) {
-        var hunk = hunks[i];
-        // Sanity check the input string. Bail if we don't match.
-        for (var j = 0; j < hunk.oldlength; j++) {
-          if (lines[hunk.start - 1 + j] !== hunk.removed[j]) {
-            return false;
-          }
-        }
-        Array.prototype.splice.apply(lines, [hunk.start - 1, hunk.oldlength].concat(hunk.added));
-      }
 
-      // Handle EOFNL insertion/removal
-      if (remEOFNL) {
-        while (!lines[lines.length - 1]) {
-          lines.pop();
-        }
-      } else if (addEOFNL) {
-        lines.push('');
-      }
-      return lines.join('\n');
-    },
+function arrayToHash(array) {
+  var hash = {};
 
-    convertChangesToXML: function(changes) {
-      var ret = [];
-      for (var i = 0; i < changes.length; i++) {
-        var change = changes[i];
-        if (change.added) {
-          ret.push('<ins>');
-        } else if (change.removed) {
-          ret.push('<del>');
-        }
+  array.forEach(function(val, idx) {
+    hash[val] = true;
+  });
 
-        ret.push(escapeHTML(change.value));
+  return hash;
+}
 
-        if (change.added) {
-          ret.push('</ins>');
-        } else if (change.removed) {
-          ret.push('</del>');
-        }
-      }
-      return ret.join('');
-    },
 
-    // See: http://code.google.com/p/google-diff-match-patch/wiki/API
-    convertChangesToDMP: function(changes) {
-      var ret = [],
-          change,
-          operation;
-      for (var i = 0; i < changes.length; i++) {
-        change = changes[i];
-        if (change.added) {
-          operation = 1;
-        } else if (change.removed) {
-          operation = -1;
-        } else {
-          operation = 0;
-        }
+function formatValue(ctx, value, recurseTimes) {
+  // Provide a hook for user-specified inspect functions.
+  // Check that value is an object with an inspect function on it
+  if (ctx.customInspect &&
+      value &&
+      isFunction(value.inspect) &&
+      // Filter out the util module, it's inspect function is special
+      value.inspect !== exports.inspect &&
+      // Also filter out any prototype objects using the circular check.
+      !(value.constructor && value.constructor.prototype === value)) {
+    var ret = value.inspect(recurseTimes, ctx);
+    if (!isString(ret)) {
+      ret = formatValue(ctx, ret, recurseTimes);
+    }
+    return ret;
+  }
 
-        ret.push([operation, change.value]);
-      }
-      return ret;
-    },
+  // Primitive types cannot have properties
+  var primitive = formatPrimitive(ctx, value);
+  if (primitive) {
+    return primitive;
+  }
 
-    canonicalize: canonicalize
-  };
+  // Look up the keys of the object.
+  var keys = Object.keys(value);
+  var visibleKeys = arrayToHash(keys);
 
-  /*istanbul ignore next */
-  /*global module */
-  if (typeof module !== 'undefined' && module.exports) {
-    module.exports = JsDiff;
-  } else if (typeof define === 'function' && define.amd) {
-    /*global define */
-    define([], function() { return JsDiff; });
-  } else if (typeof global.JsDiff === 'undefined') {
-    global.JsDiff = JsDiff;
+  if (ctx.showHidden) {
+    keys = Object.getOwnPropertyNames(value);
   }
-}(this));
 
-},{}],68:[function(require,module,exports){
-'use strict';
+  // IE doesn't make error fields non-enumerable
+  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
+  if (isError(value)
+      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
+    return formatError(value);
+  }
 
-var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
+  // Some type of object without properties can be shortcutted.
+  if (keys.length === 0) {
+    if (isFunction(value)) {
+      var name = value.name ? ': ' + value.name : '';
+      return ctx.stylize('[Function' + name + ']', 'special');
+    }
+    if (isRegExp(value)) {
+      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+    }
+    if (isDate(value)) {
+      return ctx.stylize(Date.prototype.toString.call(value), 'date');
+    }
+    if (isError(value)) {
+      return formatError(value);
+    }
+  }
 
-module.exports = function (str) {
-	if (typeof str !== 'string') {
-		throw new TypeError('Expected a string');
-	}
+  var base = '', array = false, braces = ['{', '}'];
 
-	return str.replace(matchOperatorsRe,  '\\$&');
-};
+  // Make Array say that they are Array
+  if (isArray(value)) {
+    array = true;
+    braces = ['[', ']'];
+  }
 
-},{}],69:[function(require,module,exports){
-(function (process){
-// Growl - Copyright TJ Holowaychuk <tj@vision-media.ca> (MIT Licensed)
+  // Make functions say that they are functions
+  if (isFunction(value)) {
+    var n = value.name ? ': ' + value.name : '';
+    base = ' [Function' + n + ']';
+  }
 
-/**
- * Module dependencies.
- */
+  // Make RegExps say that they are RegExps
+  if (isRegExp(value)) {
+    base = ' ' + RegExp.prototype.toString.call(value);
+  }
 
-var exec = require('child_process').exec
-  , fs = require('fs')
-  , path = require('path')
-  , exists = fs.existsSync || path.existsSync
-  , os = require('os')
-  , quote = JSON.stringify
-  , cmd;
+  // Make dates with properties first say the date
+  if (isDate(value)) {
+    base = ' ' + Date.prototype.toUTCString.call(value);
+  }
 
-function which(name) {
-  var paths = process.env.PATH.split(':');
-  var loc;
-  
-  for (var i = 0, len = paths.length; i < len; ++i) {
-    loc = path.join(paths[i], name);
-    if (exists(loc)) return loc;
+  // Make error with message first say the error
+  if (isError(value)) {
+    base = ' ' + formatError(value);
+  }
+
+  if (keys.length === 0 && (!array || value.length == 0)) {
+    return braces[0] + base + braces[1];
   }
-}
 
-switch(os.type()) {
-  case 'Darwin':
-    if (which('terminal-notifier')) {
-      cmd = {
-          type: "Darwin-NotificationCenter"
-        , pkg: "terminal-notifier"
-        , msg: '-message'
-        , title: '-title'
-        , subtitle: '-subtitle'
-        , priority: {
-              cmd: '-execute'
-            , range: []
-          }
-      };
+  if (recurseTimes < 0) {
+    if (isRegExp(value)) {
+      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
     } else {
-      cmd = {
-          type: "Darwin-Growl"
-        , pkg: "growlnotify"
-        , msg: '-m'
-        , sticky: '--sticky'
-        , priority: {
-              cmd: '--priority'
-            , range: [
-                -2
-              , -1
-              , 0
-              , 1
-              , 2
-              , "Very Low"
-              , "Moderate"
-              , "Normal"
-              , "High"
-              , "Emergency"
-            ]
-          }
-      };
+      return ctx.stylize('[Object]', 'special');
     }
-    break;
-  case 'Linux':
-    cmd = {
-        type: "Linux"
-      , pkg: "notify-send"
-      , msg: ''
-      , sticky: '-t 0'
-      , icon: '-i'
-      , priority: {
-          cmd: '-u'
-        , range: [
-            "low"
-          , "normal"
-          , "critical"
-        ]
-      }
-    };
-    break;
-  case 'Windows_NT':
-    cmd = {
-        type: "Windows"
-      , pkg: "growlnotify"
-      , msg: ''
-      , sticky: '/s:true'
-      , title: '/t:'
-      , icon: '/i:'
-      , priority: {
-            cmd: '/p:'
-          , range: [
-              -2
-            , -1
-            , 0
-            , 1
-            , 2
-          ]
-        }
-    };
-    break;
-}
+  }
 
-/**
- * Expose `growl`.
- */
+  ctx.seen.push(value);
 
-exports = module.exports = growl;
+  var output;
+  if (array) {
+    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+  } else {
+    output = keys.map(function(key) {
+      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
+    });
+  }
 
-/**
- * Node-growl version.
- */
+  ctx.seen.pop();
 
-exports.version = '1.4.1'
+  return reduceToSingleString(output, base, braces);
+}
 
-/**
- * Send growl notification _msg_ with _options_.
- *
- * Options:
- *
- *  - title   Notification title
- *  - sticky  Make the notification stick (defaults to false)
- *  - priority  Specify an int or named key (default is 0)
- *  - name    Application name (defaults to growlnotify)
- *  - image
- *    - path to an icon sets --iconpath
- *    - path to an image sets --image
- *    - capitalized word sets --appIcon
- *    - filename uses extname as --icon
- *    - otherwise treated as --icon
- *
- * Examples:
- *
- *   growl('New email')
- *   growl('5 new emails', { title: 'Thunderbird' })
- *   growl('Email sent', function(){
- *     // ... notification sent
- *   })
- *
- * @param {string} msg
- * @param {object} options
- * @param {function} fn
- * @api public
- */
 
-function growl(msg, options, fn) {
-  var image
-    , args
-    , options = options || {}
-    , fn = fn || function(){};
+function formatPrimitive(ctx, value) {
+  if (isUndefined(value))
+    return ctx.stylize('undefined', 'undefined');
+  if (isString(value)) {
+    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+                                             .replace(/'/g, "\\'")
+                                             .replace(/\\"/g, '"') + '\'';
+    return ctx.stylize(simple, 'string');
+  }
+  if (isNumber(value))
+    return ctx.stylize('' + value, 'number');
+  if (isBoolean(value))
+    return ctx.stylize('' + value, 'boolean');
+  // For some reason typeof null is "object", so special case here.
+  if (isNull(value))
+    return ctx.stylize('null', 'null');
+}
 
-  // noop
-  if (!cmd) return fn(new Error('growl not supported on this platform'));
-  args = [cmd.pkg];
 
-  // image
-  if (image = options.image) {
-    switch(cmd.type) {
-      case 'Darwin-Growl':
-        var flag, ext = path.extname(image).substr(1)
-        flag = flag || ext == 'icns' && 'iconpath'
-        flag = flag || /^[A-Z]/.test(image) && 'appIcon'
-        flag = flag || /^png|gif|jpe?g$/.test(ext) && 'image'
-        flag = flag || ext && (image = ext) && 'icon'
-        flag = flag || 'icon'
-        args.push('--' + flag, quote(image))
-        break;
-      case 'Linux':
-        args.push(cmd.icon, quote(image));
-        // libnotify defaults to sticky, set a hint for transient notifications
-        if (!options.sticky) args.push('--hint=int:transient:1');
-        break;
-      case 'Windows':
-        args.push(cmd.icon + quote(image));
-        break;
+function formatError(value) {
+  return '[' + Error.prototype.toString.call(value) + ']';
+}
+
+
+function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
+  var output = [];
+  for (var i = 0, l = value.length; i < l; ++i) {
+    if (hasOwnProperty(value, String(i))) {
+      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+          String(i), true));
+    } else {
+      output.push('');
     }
   }
+  keys.forEach(function(key) {
+    if (!key.match(/^\d+$/)) {
+      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+          key, true));
+    }
+  });
+  return output;
+}
 
-  // sticky
-  if (options.sticky) args.push(cmd.sticky);
 
-  // priority
-  if (options.priority) {
-    var priority = options.priority + '';
-    var checkindexOf = cmd.priority.range.indexOf(priority);
-    if (~cmd.priority.range.indexOf(priority)) {
-      args.push(cmd.priority, options.priority);
+function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+  var name, str, desc;
+  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
+  if (desc.get) {
+    if (desc.set) {
+      str = ctx.stylize('[Getter/Setter]', 'special');
+    } else {
+      str = ctx.stylize('[Getter]', 'special');
+    }
+  } else {
+    if (desc.set) {
+      str = ctx.stylize('[Setter]', 'special');
     }
   }
-
-  // name
-  if (options.name && cmd.type === "Darwin-Growl") {
-    args.push('--name', options.name);
+  if (!hasOwnProperty(visibleKeys, key)) {
+    name = '[' + key + ']';
   }
-
-  switch(cmd.type) {
-    case 'Darwin-Growl':
-      args.push(cmd.msg);
-      args.push(quote(msg));
-      if (options.title) args.push(quote(options.title));
-      break;
-    case 'Darwin-NotificationCenter':
-      args.push(cmd.msg);
-      args.push(quote(msg));
-      if (options.title) {
-        args.push(cmd.title);
-        args.push(quote(options.title));
-      }
-      if (options.subtitle) {
-        args.push(cmd.subtitle);
-        args.push(quote(options.subtitle));
-      }
-      break;
-    case 'Darwin-Growl':
-      args.push(cmd.msg);
-      args.push(quote(msg));
-      if (options.title) args.push(quote(options.title));
-      break;
-    case 'Linux':
-      if (options.title) {
-        args.push(quote(options.title));
-        args.push(cmd.msg);
-        args.push(quote(msg));
+  if (!str) {
+    if (ctx.seen.indexOf(desc.value) < 0) {
+      if (isNull(recurseTimes)) {
+        str = formatValue(ctx, desc.value, null);
       } else {
-        args.push(quote(msg));
+        str = formatValue(ctx, desc.value, recurseTimes - 1);
       }
-      break;
-    case 'Windows':
-      args.push(quote(msg));
-      if (options.title) args.push(cmd.title + quote(options.title));
-      break;
+      if (str.indexOf('\n') > -1) {
+        if (array) {
+          str = str.split('\n').map(function(line) {
+            return '  ' + line;
+          }).join('\n').substr(2);
+        } else {
+          str = '\n' + str.split('\n').map(function(line) {
+            return '   ' + line;
+          }).join('\n');
+        }
+      }
+    } else {
+      str = ctx.stylize('[Circular]', 'special');
+    }
+  }
+  if (isUndefined(name)) {
+    if (array && key.match(/^\d+$/)) {
+      return str;
+    }
+    name = JSON.stringify('' + key);
+    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+      name = name.substr(1, name.length - 2);
+      name = ctx.stylize(name, 'name');
+    } else {
+      name = name.replace(/'/g, "\\'")
+                 .replace(/\\"/g, '"')
+                 .replace(/(^"|"$)/g, "'");
+      name = ctx.stylize(name, 'string');
+    }
   }
 
-  // execute
-  exec(args.join(' '), fn);
-};
+  return name + ': ' + str;
+}
 
-}).call(this,require('_process'))
-},{"_process":51,"child_process":41,"fs":41,"os":50,"path":41}],70:[function(require,module,exports){
-(function (process,global){
-/**
- * Shim process.stdout.
- */
 
-process.stdout = require('browser-stdout')();
+function reduceToSingleString(output, base, braces) {
+  var numLinesEst = 0;
+  var length = output.reduce(function(prev, cur) {
+    numLinesEst++;
+    if (cur.indexOf('\n') >= 0) numLinesEst++;
+    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
+  }, 0);
 
-var Mocha = require('../');
+  if (length > 60) {
+    return braces[0] +
+           (base === '' ? '' : base + '\n ') +
+           ' ' +
+           output.join(',\n  ') +
+           ' ' +
+           braces[1];
+  }
 
-/**
- * Create a Mocha instance.
- *
- * @return {undefined}
- */
+  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+}
 
-var mocha = new Mocha({ reporter: 'html' });
 
-/**
- * Save timer references to avoid Sinon interfering (see GH-237).
- */
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+function isArray(ar) {
+  return Array.isArray(ar);
+}
+exports.isArray = isArray;
 
-var Date = global.Date;
-var setTimeout = global.setTimeout;
-var setInterval = global.setInterval;
-var clearTimeout = global.clearTimeout;
-var clearInterval = global.clearInterval;
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
 
-var uncaughtExceptionHandlers = [];
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
 
-var originalOnerrorHandler = global.onerror;
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
 
-/**
- * Remove uncaughtException listener.
- * Revert to original onerror handler if previously defined.
- */
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
 
-process.removeListener = function(e, fn){
-  if ('uncaughtException' == e) {
-    if (originalOnerrorHandler) {
-      global.onerror = originalOnerrorHandler;
-    } else {
-      global.onerror = function() {};
-    }
-    var i = Mocha.utils.indexOf(uncaughtExceptionHandlers, fn);
-    if (i != -1) { uncaughtExceptionHandlers.splice(i, 1); }
-  }
-};
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
 
-/**
- * Implements uncaughtException listener.
- */
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
 
-process.on = function(e, fn){
-  if ('uncaughtException' == e) {
-    global.onerror = function(err, url, line){
-      fn(new Error(err + ' (' + url + ':' + line + ')'));
-      return !mocha.allowUncaught;
-    };
-    uncaughtExceptionHandlers.push(fn);
-  }
-};
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
 
-// The BDD UI is registered by default, but no UI will be functional in the
-// browser without an explicit call to the overridden `mocha.ui` (see below).
-// Ensure that this default UI does not expose its methods to the global scope.
-mocha.suite.removeAllListeners('pre-require');
+function isRegExp(re) {
+  return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
 
-var immediateQueue = []
-  , immediateTimeout;
+function isDate(d) {
+  return isObject(d) && objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
 
-function timeslice() {
-  var immediateStart = new Date().getTime();
-  while (immediateQueue.length && (new Date().getTime() - immediateStart) < 100) {
-    immediateQueue.shift()();
-  }
-  if (immediateQueue.length) {
-    immediateTimeout = setTimeout(timeslice, 0);
-  } else {
-    immediateTimeout = null;
-  }
+function isError(e) {
+  return isObject(e) &&
+      (objectToString(e) === '[object Error]' || e instanceof Error);
 }
+exports.isError = isError;
 
-/**
- * High-performance override of Runner.immediately.
- */
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
 
-Mocha.Runner.immediately = function(callback) {
-  immediateQueue.push(callback);
-  if (!immediateTimeout) {
-    immediateTimeout = setTimeout(timeslice, 0);
-  }
-};
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
 
-/**
- * Function to allow assertion libraries to throw errors directly into mocha.
- * This is useful when running tests in a browser because window.onerror will
- * only receive the 'message' attribute of the Error.
- */
-mocha.throwError = function(err) {
-  Mocha.utils.forEach(uncaughtExceptionHandlers, function (fn) {
-    fn(err);
-  });
-  throw err;
-};
+exports.isBuffer = require('./support/isBuffer');
 
-/**
- * Override ui to ensure that the ui functions are initialized.
- * Normally this would happen in Mocha.prototype.loadFiles.
- */
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
 
-mocha.ui = function(ui){
-  Mocha.prototype.ui.call(this, ui);
-  this.suite.emit('pre-require', global, null, this);
-  return this;
-};
 
-/**
- * Setup mocha with the given setting options.
- */
+function pad(n) {
+  return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
 
-mocha.setup = function(opts){
-  if ('string' == typeof opts) opts = { ui: opts };
-  for (var opt in opts) this[opt](opts[opt]);
-  return this;
-};
 
-/**
- * Run mocha, returning the Runner.
- */
+var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
+              'Oct', 'Nov', 'Dec'];
 
-mocha.run = function(fn){
-  var options = mocha.options;
-  mocha.globals('location');
+// 26 Feb 16:19:34
+function timestamp() {
+  var d = new Date();
+  var time = [pad(d.getHours()),
+              pad(d.getMinutes()),
+              pad(d.getSeconds())].join(':');
+  return [d.getDate(), months[d.getMonth()], time].join(' ');
+}
 
-  var query = Mocha.utils.parseQuery(global.location.search || '');
-  if (query.grep) mocha.grep(new RegExp(query.grep));
-  if (query.fgrep) mocha.grep(query.fgrep);
-  if (query.invert) mocha.invert();
 
-  return Mocha.prototype.run.call(mocha, function(err){
-    // The DOM Document is not available in Web Workers.
-    var document = global.document;
-    if (document && document.getElementById('mocha') && options.noHighlighting !== true) {
-      Mocha.utils.highlightTags('code');
-    }
-    if (fn) fn(err);
-  });
+// log is just a thin wrapper to console.log that prepends a timestamp
+exports.log = function() {
+  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
 };
 
+
 /**
- * Expose the process shim.
- * https://github.com/mochajs/mocha/pull/916
+ * Inherit the prototype methods from one constructor into another.
+ *
+ * The Function.prototype.inherits from lang.js rewritten as a standalone
+ * function (not on Function.prototype). NOTE: If this file is to be loaded
+ * during bootstrapping this function needs to be rewritten using some native
+ * functions as prototype setup using normal JavaScript does not work as
+ * expected during bootstrapping (see mirror.js in r114903).
+ *
+ * @param {function} ctor Constructor function which needs to inherit the
+ *     prototype.
+ * @param {function} superCtor Constructor function to inherit prototype from.
  */
+exports.inherits = require('inherits');
 
-Mocha.process = process;
+exports._extend = function(origin, add) {
+  // Don't do anything if add isn't an object
+  if (!add || !isObject(add)) return origin;
 
-/**
- * Expose mocha.
- */
+  var keys = Object.keys(add);
+  var i = keys.length;
+  while (i--) {
+    origin[keys[i]] = add[keys[i]];
+  }
+  return origin;
+};
 
-window.Mocha = Mocha;
-window.mocha = mocha;
+function hasOwnProperty(obj, prop) {
+  return Object.prototype.hasOwnProperty.call(obj, prop);
+}
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../":1,"_process":51,"browser-stdout":40}]},{},[70]);
+},{"./support/isBuffer":83,"_process":67,"inherits":82}]},{},[1]);

From 4a1f642e7b9766dcf7178bccaf93de5ea42f39c7 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 8 Oct 2016 21:32:55 +0200
Subject: [PATCH 02/85] Update loadImage to version 2.7.0.

---
 test/vendor/load-image.js | 63 ++++++++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 24 deletions(-)

diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index ec5fee0..e7fe73c 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -9,7 +9,7 @@
  * http://www.opensource.org/licenses/MIT
  */
 
-/*global define, module, window, document, URL, webkitURL, FileReader */
+/* global define, URL, webkitURL, FileReader */
 
 ;(function ($) {
   'use strict'
@@ -17,26 +17,20 @@
   // Loads an image for a given File object.
   // Invokes the callback with an img or optional canvas
   // element (if supported by the browser) as parameter:
-  var loadImage = function (file, callback, options) {
+  function loadImage (file, callback, options) {
     var img = document.createElement('img')
     var url
-    var oUrl
-    img.onerror = callback
-    img.onload = function () {
-      if (oUrl && !(options && options.noRevoke)) {
-        loadImage.revokeObjectURL(oUrl)
-      }
-      if (callback) {
-        callback(loadImage.scale(img, options))
-      }
+    img.onerror = function (event) {
+      return loadImage.onerror(img, event, file, callback, options)
+    }
+    img.onload = function (event) {
+      return loadImage.onload(img, event, file, callback, options)
     }
     if (loadImage.isInstanceOf('Blob', file) ||
       // Files are also Blob instances, but some browsers
       // (Firefox 3.6) support the File API but not Blobs:
       loadImage.isInstanceOf('File', file)) {
-      url = oUrl = loadImage.createObjectURL(file)
-      // Store the file type for resize processing:
-      img._type = file.type
+      url = img._objectURL = loadImage.createObjectURL(file)
     } else if (typeof file === 'string') {
       url = file
       if (options && options.crossOrigin) {
@@ -53,10 +47,8 @@
       var target = e.target
       if (target && target.result) {
         img.src = target.result
-      } else {
-        if (callback) {
-          callback(e)
-        }
+      } else if (callback) {
+        callback(e)
       }
     })
   }
@@ -66,11 +58,36 @@
                 (window.URL && URL.revokeObjectURL && URL) ||
                 (window.webkitURL && webkitURL)
 
+  function revokeHelper (img, options) {
+    if (img._objectURL && !(options && options.noRevoke)) {
+      loadImage.revokeObjectURL(img._objectURL)
+      delete img._objectURL
+    }
+  }
+
   loadImage.isInstanceOf = function (type, obj) {
     // Cross-frame instanceof check
     return Object.prototype.toString.call(obj) === '[object ' + type + ']'
   }
 
+  loadImage.transform = function (img, options, callback, file, data) {
+    callback(loadImage.scale(img, options, data), data)
+  }
+
+  loadImage.onerror = function (img, event, file, callback, options) {
+    revokeHelper(img, options)
+    if (callback) {
+      callback.call(img, event)
+    }
+  }
+
+  loadImage.onload = function (img, event, file, callback, options) {
+    revokeHelper(img, options)
+    if (callback) {
+      loadImage.transform(img, options, callback, file, {})
+    }
+  }
+
   // Transform image coordinates, allows to override e.g.
   // the canvas orientation based on the orientation option,
   // gets canvas, options passed as arguments:
@@ -109,8 +126,7 @@
     return newOptions
   }
 
-  // Canvas render method, allows to override the
-  // rendering e.g. to work around issues on iOS:
+  // Canvas render method, allows to implement a different rendering algorithm:
   loadImage.renderImageToCanvas = function (
     canvas,
     img,
@@ -137,8 +153,7 @@
     return canvas
   }
 
-  // This method is used to determine if the target image
-  // should be a canvas element:
+  // Determines if the target image should be a canvas element:
   loadImage.hasCanvasOption = function (options) {
     return options.canvas || options.crop || !!options.aspectRatio
   }
@@ -148,7 +163,7 @@
   // Returns a canvas object if the browser supports canvas
   // and the hasCanvasOption method returns true or a canvas
   // object is passed as image, else the scaled image:
-  loadImage.scale = function (img, options) {
+  loadImage.scale = function (img, options, data) {
     options = options || {}
     var canvas = document.createElement('canvas')
     var useCanvas = img.getContext ||
@@ -189,7 +204,7 @@
       }
     }
     if (useCanvas) {
-      options = loadImage.getTransformedOptions(img, options)
+      options = loadImage.getTransformedOptions(img, options, data)
       sourceX = options.left || 0
       sourceY = options.top || 0
       if (options.sourceWidth) {

From 29d20f8d4fdc04bac765de7d992eb45a26739751 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 8 Oct 2016 21:34:34 +0200
Subject: [PATCH 03/85] Replace expect.js with chai.js. Use
 mocha-phantomjs-core directly. Update standard and uglify-js dependencies.

---
 js/canvas-to-blob.js  |    2 +-
 package.json          |   11 +-
 test/index.html       |    2 +-
 test/test.js          |   18 +-
 test/vendor/chai.js   | 6142 +++++++++++++++++++++++++++++++++++++++++
 test/vendor/expect.js | 1284 ---------
 6 files changed, 6160 insertions(+), 1299 deletions(-)
 create mode 100644 test/vendor/chai.js
 delete mode 100644 test/vendor/expect.js

diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index 35da26e..3291366 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -12,7 +12,7 @@
  * http://stackoverflow.com/q/4998908
  */
 
-/*global window, atob, Blob, ArrayBuffer, Uint8Array, define, module */
+/* global atob, Blob, define */
 
 ;(function (window) {
   'use strict'
diff --git a/package.json b/package.json
index f802ad7..7af92fd 100644
--- a/package.json
+++ b/package.json
@@ -22,12 +22,15 @@
   "license": "MIT",
   "main": "./js/canvas-to-blob.js",
   "devDependencies": {
-    "mocha-phantomjs": "4.0.1",
-    "standard": "6.0.7",
-    "uglify-js": "2.6.1"
+    "phantomjs-prebuilt": "2.1.13",
+    "mocha-phantomjs-core": "1.3.1",
+    "standard": "8.3.0",
+    "uglify-js": "2.7.3"
   },
   "scripts": {
-    "test": "standard js/*.js test/*.js && mocha-phantomjs test/index.html",
+    "lint": "standard js/*.js test/*.js",
+    "unit": "phantomjs node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/index.html",
+    "test": "npm run lint && npm run unit",
     "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map canvas-to-blob.min.js.map",
     "preversion": "npm test",
     "version": "npm run build && git add -A js",
diff --git a/test/index.html b/test/index.html
index 1b47d05..9839390 100644
--- a/test/index.html
+++ b/test/index.html
@@ -24,7 +24,7 @@
 <body>
 <div id="mocha"></div>
 <script src="http://github.com/vendor/mocha.js"></script>
-<script src="http://github.com/vendor/expect.js"></script>
+<script src="http://github.com/vendor/chai.js"></script>
 <script>
 window.initMochaPhantomJS && initMochaPhantomJS();
 mocha.setup('bdd');
diff --git a/test/test.js b/test/test.js
index 18d881d..9a81db0 100644
--- a/test/test.js
+++ b/test/test.js
@@ -9,7 +9,7 @@
  * http://www.opensource.org/licenses/MIT
  */
 
-/*global window, describe, it, Blob */
+/* global describe, it, Blob */
 
 ;(function (expect) {
   'use strict'
@@ -26,7 +26,7 @@
       window.loadImage(blob, function (canvas) {
         canvas.toBlob(
           function (newBlob) {
-            expect(newBlob).to.be.a(Blob)
+            expect(newBlob).to.be.a.instanceOf(Blob)
             done()
           }
         )
@@ -37,7 +37,7 @@
       window.loadImage(blob, function (canvas) {
         canvas.toBlob(
           function (newBlob) {
-            expect(newBlob.type).to.be('image/png')
+            expect(newBlob.type).to.equal('image/png')
             done()
           },
           'image/png'
@@ -49,7 +49,7 @@
       window.loadImage(blob, function (canvas) {
         canvas.toBlob(
           function (newBlob) {
-            expect(newBlob.type).to.be('image/jpeg')
+            expect(newBlob.type).to.equal('image/jpeg')
             done()
           },
           'image/jpeg'
@@ -62,8 +62,8 @@
         canvas.toBlob(
           function (newBlob) {
             window.loadImage(newBlob, function (img) {
-              expect(img.width).to.be(canvas.width)
-              expect(img.height).to.be(canvas.height)
+              expect(img.width).to.equal(canvas.width)
+              expect(img.height).to.equal(canvas.height)
               done()
             })
           }
@@ -80,8 +80,8 @@
                   .getImageData(0, 0, canvas.width, canvas.height)
               var newCanvasData = newCanvas.getContext('2d')
                   .getImageData(0, 0, newCanvas.width, newCanvas.height)
-              expect(canvasData.width).to.be(newCanvasData.width)
-              expect(canvasData.height).to.be(newCanvasData.height)
+              expect(canvasData.width).to.equal(newCanvasData.width)
+              expect(canvasData.height).to.equal(newCanvasData.height)
               done()
             }, {canvas: true})
           }
@@ -89,4 +89,4 @@
       }, {canvas: true})
     })
   })
-}(this.expect))
+}(this.chai.expect))
diff --git a/test/vendor/chai.js b/test/vendor/chai.js
new file mode 100644
index 0000000..bbe4c4a
--- /dev/null
+++ b/test/vendor/chai.js
@@ -0,0 +1,6142 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.chai = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+module.exports = require('./lib/chai');
+
+},{"./lib/chai":2}],2:[function(require,module,exports){
+/*!
+ * chai
+ * Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+var used = []
+  , exports = module.exports = {};
+
+/*!
+ * Chai version
+ */
+
+exports.version = '3.5.0';
+
+/*!
+ * Assertion Error
+ */
+
+exports.AssertionError = require('assertion-error');
+
+/*!
+ * Utils for plugins (not exported)
+ */
+
+var util = require('./chai/utils');
+
+/**
+ * # .use(function)
+ *
+ * Provides a way to extend the internals of Chai
+ *
+ * @param {Function}
+ * @returns {this} for chaining
+ * @api public
+ */
+
+exports.use = function (fn) {
+  if (!~used.indexOf(fn)) {
+    fn(this, util);
+    used.push(fn);
+  }
+
+  return this;
+};
+
+/*!
+ * Utility Functions
+ */
+
+exports.util = util;
+
+/*!
+ * Configuration
+ */
+
+var config = require('./chai/config');
+exports.config = config;
+
+/*!
+ * Primary `Assertion` prototype
+ */
+
+var assertion = require('./chai/assertion');
+exports.use(assertion);
+
+/*!
+ * Core Assertions
+ */
+
+var core = require('./chai/core/assertions');
+exports.use(core);
+
+/*!
+ * Expect interface
+ */
+
+var expect = require('./chai/interface/expect');
+exports.use(expect);
+
+/*!
+ * Should interface
+ */
+
+var should = require('./chai/interface/should');
+exports.use(should);
+
+/*!
+ * Assert interface
+ */
+
+var assert = require('./chai/interface/assert');
+exports.use(assert);
+
+},{"./chai/assertion":3,"./chai/config":4,"./chai/core/assertions":5,"./chai/interface/assert":6,"./chai/interface/expect":7,"./chai/interface/should":8,"./chai/utils":22,"assertion-error":30}],3:[function(require,module,exports){
+/*!
+ * chai
+ * http://chaijs.com
+ * Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+var config = require('./config');
+
+module.exports = function (_chai, util) {
+  /*!
+   * Module dependencies.
+   */
+
+  var AssertionError = _chai.AssertionError
+    , flag = util.flag;
+
+  /*!
+   * Module export.
+   */
+
+  _chai.Assertion = Assertion;
+
+  /*!
+   * Assertion Constructor
+   *
+   * Creates object for chaining.
+   *
+   * @api private
+   */
+
+  function Assertion (obj, msg, stack) {
+    flag(this, 'ssfi', stack || arguments.callee);
+    flag(this, 'object', obj);
+    flag(this, 'message', msg);
+  }
+
+  Object.defineProperty(Assertion, 'includeStack', {
+    get: function() {
+      console.warn('Assertion.includeStack is deprecated, use chai.config.includeStack instead.');
+      return config.includeStack;
+    },
+    set: function(value) {
+      console.warn('Assertion.includeStack is deprecated, use chai.config.includeStack instead.');
+      config.includeStack = value;
+    }
+  });
+
+  Object.defineProperty(Assertion, 'showDiff', {
+    get: function() {
+      console.warn('Assertion.showDiff is deprecated, use chai.config.showDiff instead.');
+      return config.showDiff;
+    },
+    set: function(value) {
+      console.warn('Assertion.showDiff is deprecated, use chai.config.showDiff instead.');
+      config.showDiff = value;
+    }
+  });
+
+  Assertion.addProperty = function (name, fn) {
+    util.addProperty(this.prototype, name, fn);
+  };
+
+  Assertion.addMethod = function (name, fn) {
+    util.addMethod(this.prototype, name, fn);
+  };
+
+  Assertion.addChainableMethod = function (name, fn, chainingBehavior) {
+    util.addChainableMethod(this.prototype, name, fn, chainingBehavior);
+  };
+
+  Assertion.overwriteProperty = function (name, fn) {
+    util.overwriteProperty(this.prototype, name, fn);
+  };
+
+  Assertion.overwriteMethod = function (name, fn) {
+    util.overwriteMethod(this.prototype, name, fn);
+  };
+
+  Assertion.overwriteChainableMethod = function (name, fn, chainingBehavior) {
+    util.overwriteChainableMethod(this.prototype, name, fn, chainingBehavior);
+  };
+
+  /**
+   * ### .assert(expression, message, negateMessage, expected, actual, showDiff)
+   *
+   * Executes an expression and check expectations. Throws AssertionError for reporting if test doesn't pass.
+   *
+   * @name assert
+   * @param {Philosophical} expression to be tested
+   * @param {String|Function} message or function that returns message to display if expression fails
+   * @param {String|Function} negatedMessage or function that returns negatedMessage to display if negated expression fails
+   * @param {Mixed} expected value (remember to check for negation)
+   * @param {Mixed} actual (optional) will default to `this.obj`
+   * @param {Boolean} showDiff (optional) when set to `true`, assert will display a diff in addition to the message if expression fails
+   * @api private
+   */
+
+  Assertion.prototype.assert = function (expr, msg, negateMsg, expected, _actual, showDiff) {
+    var ok = util.test(this, arguments);
+    if (true !== showDiff) showDiff = false;
+    if (true !== config.showDiff) showDiff = false;
+
+    if (!ok) {
+      var msg = util.getMessage(this, arguments)
+        , actual = util.getActual(this, arguments);
+      throw new AssertionError(msg, {
+          actual: actual
+        , expected: expected
+        , showDiff: showDiff
+      }, (config.includeStack) ? this.assert : flag(this, 'ssfi'));
+    }
+  };
+
+  /*!
+   * ### ._obj
+   *
+   * Quick reference to stored `actual` value for plugin developers.
+   *
+   * @api private
+   */
+
+  Object.defineProperty(Assertion.prototype, '_obj',
+    { get: function () {
+        return flag(this, 'object');
+      }
+    , set: function (val) {
+        flag(this, 'object', val);
+      }
+  });
+};
+
+},{"./config":4}],4:[function(require,module,exports){
+module.exports = {
+
+  /**
+   * ### config.includeStack
+   *
+   * User configurable property, influences whether stack trace
+   * is included in Assertion error message. Default of false
+   * suppresses stack trace in the error message.
+   *
+   *     chai.config.includeStack = true;  // enable stack on error
+   *
+   * @param {Boolean}
+   * @api public
+   */
+
+   includeStack: false,
+
+  /**
+   * ### config.showDiff
+   *
+   * User configurable property, influences whether or not
+   * the `showDiff` flag should be included in the thrown
+   * AssertionErrors. `false` will always be `false`; `true`
+   * will be true when the assertion has requested a diff
+   * be shown.
+   *
+   * @param {Boolean}
+   * @api public
+   */
+
+  showDiff: true,
+
+  /**
+   * ### config.truncateThreshold
+   *
+   * User configurable property, sets length threshold for actual and
+   * expected values in assertion errors. If this threshold is exceeded, for
+   * example for large data structures, the value is replaced with something
+   * like `[ Array(3) ]` or `{ Object (prop1, prop2) }`.
+   *
+   * Set it to zero if you want to disable truncating altogether.
+   *
+   * This is especially userful when doing assertions on arrays: having this
+   * set to a reasonable large value makes the failure messages readily
+   * inspectable.
+   *
+   *     chai.config.truncateThreshold = 0;  // disable truncating
+   *
+   * @param {Number}
+   * @api public
+   */
+
+  truncateThreshold: 40
+
+};
+
+},{}],5:[function(require,module,exports){
+/*!
+ * chai
+ * http://chaijs.com
+ * Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+module.exports = function (chai, _) {
+  var Assertion = chai.Assertion
+    , toString = Object.prototype.toString
+    , flag = _.flag;
+
+  /**
+   * ### Language Chains
+   *
+   * The following are provided as chainable getters to
+   * improve the readability of your assertions. They
+   * do not provide testing capabilities unless they
+   * have been overwritten by a plugin.
+   *
+   * **Chains**
+   *
+   * - to
+   * - be
+   * - been
+   * - is
+   * - that
+   * - which
+   * - and
+   * - has
+   * - have
+   * - with
+   * - at
+   * - of
+   * - same
+   *
+   * @name language chains
+   * @namespace BDD
+   * @api public
+   */
+
+  [ 'to', 'be', 'been'
+  , 'is', 'and', 'has', 'have'
+  , 'with', 'that', 'which', 'at'
+  , 'of', 'same' ].forEach(function (chain) {
+    Assertion.addProperty(chain, function () {
+      return this;
+    });
+  });
+
+  /**
+   * ### .not
+   *
+   * Negates any of assertions following in the chain.
+   *
+   *     expect(foo).to.not.equal('bar');
+   *     expect(goodFn).to.not.throw(Error);
+   *     expect({ foo: 'baz' }).to.have.property('foo')
+   *       .and.not.equal('bar');
+   *
+   * @name not
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('not', function () {
+    flag(this, 'negate', true);
+  });
+
+  /**
+   * ### .deep
+   *
+   * Sets the `deep` flag, later used by the `equal` and
+   * `property` assertions.
+   *
+   *     expect(foo).to.deep.equal({ bar: 'baz' });
+   *     expect({ foo: { bar: { baz: 'quux' } } })
+   *       .to.have.deep.property('foo.bar.baz', 'quux');
+   *
+   * `.deep.property` special characters can be escaped
+   * by adding two slashes before the `.` or `[]`.
+   *
+   *     var deepCss = { '.link': { '[target]': 42 }};
+   *     expect(deepCss).to.have.deep.property('\\.link.\\[target\\]', 42);
+   *
+   * @name deep
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('deep', function () {
+    flag(this, 'deep', true);
+  });
+
+  /**
+   * ### .any
+   *
+   * Sets the `any` flag, (opposite of the `all` flag)
+   * later used in the `keys` assertion.
+   *
+   *     expect(foo).to.have.any.keys('bar', 'baz');
+   *
+   * @name any
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('any', function () {
+    flag(this, 'any', true);
+    flag(this, 'all', false)
+  });
+
+
+  /**
+   * ### .all
+   *
+   * Sets the `all` flag (opposite of the `any` flag)
+   * later used by the `keys` assertion.
+   *
+   *     expect(foo).to.have.all.keys('bar', 'baz');
+   *
+   * @name all
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('all', function () {
+    flag(this, 'all', true);
+    flag(this, 'any', false);
+  });
+
+  /**
+   * ### .a(type)
+   *
+   * The `a` and `an` assertions are aliases that can be
+   * used either as language chains or to assert a value's
+   * type.
+   *
+   *     // typeof
+   *     expect('test').to.be.a('string');
+   *     expect({ foo: 'bar' }).to.be.an('object');
+   *     expect(null).to.be.a('null');
+   *     expect(undefined).to.be.an('undefined');
+   *     expect(new Error).to.be.an('error');
+   *     expect(new Promise).to.be.a('promise');
+   *     expect(new Float32Array()).to.be.a('float32array');
+   *     expect(Symbol()).to.be.a('symbol');
+   *
+   *     // es6 overrides
+   *     expect({[Symbol.toStringTag]:()=>'foo'}).to.be.a('foo');
+   *
+   *     // language chain
+   *     expect(foo).to.be.an.instanceof(Foo);
+   *
+   * @name a
+   * @alias an
+   * @param {String} type
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function an (type, msg) {
+    if (msg) flag(this, 'message', msg);
+    type = type.toLowerCase();
+    var obj = flag(this, 'object')
+      , article = ~[ 'a', 'e', 'i', 'o', 'u' ].indexOf(type.charAt(0)) ? 'an ' : 'a ';
+
+    this.assert(
+        type === _.type(obj)
+      , 'expected #{this} to be ' + article + type
+      , 'expected #{this} not to be ' + article + type
+    );
+  }
+
+  Assertion.addChainableMethod('an', an);
+  Assertion.addChainableMethod('a', an);
+
+  /**
+   * ### .include(value)
+   *
+   * The `include` and `contain` assertions can be used as either property
+   * based language chains or as methods to assert the inclusion of an object
+   * in an array or a substring in a string. When used as language chains,
+   * they toggle the `contains` flag for the `keys` assertion.
+   *
+   *     expect([1,2,3]).to.include(2);
+   *     expect('foobar').to.contain('foo');
+   *     expect({ foo: 'bar', hello: 'universe' }).to.include.keys('foo');
+   *
+   * @name include
+   * @alias contain
+   * @alias includes
+   * @alias contains
+   * @param {Object|String|Number} obj
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function includeChainingBehavior () {
+    flag(this, 'contains', true);
+  }
+
+  function include (val, msg) {
+    _.expectTypes(this, ['array', 'object', 'string']);
+
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    var expected = false;
+
+    if (_.type(obj) === 'array' && _.type(val) === 'object') {
+      for (var i in obj) {
+        if (_.eql(obj[i], val)) {
+          expected = true;
+          break;
+        }
+      }
+    } else if (_.type(val) === 'object') {
+      if (!flag(this, 'negate')) {
+        for (var k in val) new Assertion(obj).property(k, val[k]);
+        return;
+      }
+      var subset = {};
+      for (var k in val) subset[k] = obj[k];
+      expected = _.eql(subset, val);
+    } else {
+      expected = (obj != undefined) && ~obj.indexOf(val);
+    }
+    this.assert(
+        expected
+      , 'expected #{this} to include ' + _.inspect(val)
+      , 'expected #{this} to not include ' + _.inspect(val));
+  }
+
+  Assertion.addChainableMethod('include', include, includeChainingBehavior);
+  Assertion.addChainableMethod('contain', include, includeChainingBehavior);
+  Assertion.addChainableMethod('contains', include, includeChainingBehavior);
+  Assertion.addChainableMethod('includes', include, includeChainingBehavior);
+
+  /**
+   * ### .ok
+   *
+   * Asserts that the target is truthy.
+   *
+   *     expect('everything').to.be.ok;
+   *     expect(1).to.be.ok;
+   *     expect(false).to.not.be.ok;
+   *     expect(undefined).to.not.be.ok;
+   *     expect(null).to.not.be.ok;
+   *
+   * @name ok
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('ok', function () {
+    this.assert(
+        flag(this, 'object')
+      , 'expected #{this} to be truthy'
+      , 'expected #{this} to be falsy');
+  });
+
+  /**
+   * ### .true
+   *
+   * Asserts that the target is `true`.
+   *
+   *     expect(true).to.be.true;
+   *     expect(1).to.not.be.true;
+   *
+   * @name true
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('true', function () {
+    this.assert(
+        true === flag(this, 'object')
+      , 'expected #{this} to be true'
+      , 'expected #{this} to be false'
+      , this.negate ? false : true
+    );
+  });
+
+  /**
+   * ### .false
+   *
+   * Asserts that the target is `false`.
+   *
+   *     expect(false).to.be.false;
+   *     expect(0).to.not.be.false;
+   *
+   * @name false
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('false', function () {
+    this.assert(
+        false === flag(this, 'object')
+      , 'expected #{this} to be false'
+      , 'expected #{this} to be true'
+      , this.negate ? true : false
+    );
+  });
+
+  /**
+   * ### .null
+   *
+   * Asserts that the target is `null`.
+   *
+   *     expect(null).to.be.null;
+   *     expect(undefined).to.not.be.null;
+   *
+   * @name null
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('null', function () {
+    this.assert(
+        null === flag(this, 'object')
+      , 'expected #{this} to be null'
+      , 'expected #{this} not to be null'
+    );
+  });
+
+  /**
+   * ### .undefined
+   *
+   * Asserts that the target is `undefined`.
+   *
+   *     expect(undefined).to.be.undefined;
+   *     expect(null).to.not.be.undefined;
+   *
+   * @name undefined
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('undefined', function () {
+    this.assert(
+        undefined === flag(this, 'object')
+      , 'expected #{this} to be undefined'
+      , 'expected #{this} not to be undefined'
+    );
+  });
+
+  /**
+   * ### .NaN
+   * Asserts that the target is `NaN`.
+   *
+   *     expect('foo').to.be.NaN;
+   *     expect(4).not.to.be.NaN;
+   *
+   * @name NaN
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('NaN', function () {
+    this.assert(
+        isNaN(flag(this, 'object'))
+        , 'expected #{this} to be NaN'
+        , 'expected #{this} not to be NaN'
+    );
+  });
+
+  /**
+   * ### .exist
+   *
+   * Asserts that the target is neither `null` nor `undefined`.
+   *
+   *     var foo = 'hi'
+   *       , bar = null
+   *       , baz;
+   *
+   *     expect(foo).to.exist;
+   *     expect(bar).to.not.exist;
+   *     expect(baz).to.not.exist;
+   *
+   * @name exist
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('exist', function () {
+    this.assert(
+        null != flag(this, 'object')
+      , 'expected #{this} to exist'
+      , 'expected #{this} to not exist'
+    );
+  });
+
+
+  /**
+   * ### .empty
+   *
+   * Asserts that the target's length is `0`. For arrays and strings, it checks
+   * the `length` property. For objects, it gets the count of
+   * enumerable keys.
+   *
+   *     expect([]).to.be.empty;
+   *     expect('').to.be.empty;
+   *     expect({}).to.be.empty;
+   *
+   * @name empty
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('empty', function () {
+    var obj = flag(this, 'object')
+      , expected = obj;
+
+    if (Array.isArray(obj) || 'string' === typeof object) {
+      expected = obj.length;
+    } else if (typeof obj === 'object') {
+      expected = Object.keys(obj).length;
+    }
+
+    this.assert(
+        !expected
+      , 'expected #{this} to be empty'
+      , 'expected #{this} not to be empty'
+    );
+  });
+
+  /**
+   * ### .arguments
+   *
+   * Asserts that the target is an arguments object.
+   *
+   *     function test () {
+   *       expect(arguments).to.be.arguments;
+   *     }
+   *
+   * @name arguments
+   * @alias Arguments
+   * @namespace BDD
+   * @api public
+   */
+
+  function checkArguments () {
+    var obj = flag(this, 'object')
+      , type = Object.prototype.toString.call(obj);
+    this.assert(
+        '[object Arguments]' === type
+      , 'expected #{this} to be arguments but got ' + type
+      , 'expected #{this} to not be arguments'
+    );
+  }
+
+  Assertion.addProperty('arguments', checkArguments);
+  Assertion.addProperty('Arguments', checkArguments);
+
+  /**
+   * ### .equal(value)
+   *
+   * Asserts that the target is strictly equal (`===`) to `value`.
+   * Alternately, if the `deep` flag is set, asserts that
+   * the target is deeply equal to `value`.
+   *
+   *     expect('hello').to.equal('hello');
+   *     expect(42).to.equal(42);
+   *     expect(1).to.not.equal(true);
+   *     expect({ foo: 'bar' }).to.not.equal({ foo: 'bar' });
+   *     expect({ foo: 'bar' }).to.deep.equal({ foo: 'bar' });
+   *
+   * @name equal
+   * @alias equals
+   * @alias eq
+   * @alias deep.equal
+   * @param {Mixed} value
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertEqual (val, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    if (flag(this, 'deep')) {
+      return this.eql(val);
+    } else {
+      this.assert(
+          val === obj
+        , 'expected #{this} to equal #{exp}'
+        , 'expected #{this} to not equal #{exp}'
+        , val
+        , this._obj
+        , true
+      );
+    }
+  }
+
+  Assertion.addMethod('equal', assertEqual);
+  Assertion.addMethod('equals', assertEqual);
+  Assertion.addMethod('eq', assertEqual);
+
+  /**
+   * ### .eql(value)
+   *
+   * Asserts that the target is deeply equal to `value`.
+   *
+   *     expect({ foo: 'bar' }).to.eql({ foo: 'bar' });
+   *     expect([ 1, 2, 3 ]).to.eql([ 1, 2, 3 ]);
+   *
+   * @name eql
+   * @alias eqls
+   * @param {Mixed} value
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertEql(obj, msg) {
+    if (msg) flag(this, 'message', msg);
+    this.assert(
+        _.eql(obj, flag(this, 'object'))
+      , 'expected #{this} to deeply equal #{exp}'
+      , 'expected #{this} to not deeply equal #{exp}'
+      , obj
+      , this._obj
+      , true
+    );
+  }
+
+  Assertion.addMethod('eql', assertEql);
+  Assertion.addMethod('eqls', assertEql);
+
+  /**
+   * ### .above(value)
+   *
+   * Asserts that the target is greater than `value`.
+   *
+   *     expect(10).to.be.above(5);
+   *
+   * Can also be used in conjunction with `length` to
+   * assert a minimum length. The benefit being a
+   * more informative error message than if the length
+   * was supplied directly.
+   *
+   *     expect('foo').to.have.length.above(2);
+   *     expect([ 1, 2, 3 ]).to.have.length.above(2);
+   *
+   * @name above
+   * @alias gt
+   * @alias greaterThan
+   * @param {Number} value
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertAbove (n, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    if (flag(this, 'doLength')) {
+      new Assertion(obj, msg).to.have.property('length');
+      var len = obj.length;
+      this.assert(
+          len > n
+        , 'expected #{this} to have a length above #{exp} but got #{act}'
+        , 'expected #{this} to not have a length above #{exp}'
+        , n
+        , len
+      );
+    } else {
+      this.assert(
+          obj > n
+        , 'expected #{this} to be above ' + n
+        , 'expected #{this} to be at most ' + n
+      );
+    }
+  }
+
+  Assertion.addMethod('above', assertAbove);
+  Assertion.addMethod('gt', assertAbove);
+  Assertion.addMethod('greaterThan', assertAbove);
+
+  /**
+   * ### .least(value)
+   *
+   * Asserts that the target is greater than or equal to `value`.
+   *
+   *     expect(10).to.be.at.least(10);
+   *
+   * Can also be used in conjunction with `length` to
+   * assert a minimum length. The benefit being a
+   * more informative error message than if the length
+   * was supplied directly.
+   *
+   *     expect('foo').to.have.length.of.at.least(2);
+   *     expect([ 1, 2, 3 ]).to.have.length.of.at.least(3);
+   *
+   * @name least
+   * @alias gte
+   * @param {Number} value
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertLeast (n, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    if (flag(this, 'doLength')) {
+      new Assertion(obj, msg).to.have.property('length');
+      var len = obj.length;
+      this.assert(
+          len >= n
+        , 'expected #{this} to have a length at least #{exp} but got #{act}'
+        , 'expected #{this} to have a length below #{exp}'
+        , n
+        , len
+      );
+    } else {
+      this.assert(
+          obj >= n
+        , 'expected #{this} to be at least ' + n
+        , 'expected #{this} to be below ' + n
+      );
+    }
+  }
+
+  Assertion.addMethod('least', assertLeast);
+  Assertion.addMethod('gte', assertLeast);
+
+  /**
+   * ### .below(value)
+   *
+   * Asserts that the target is less than `value`.
+   *
+   *     expect(5).to.be.below(10);
+   *
+   * Can also be used in conjunction with `length` to
+   * assert a maximum length. The benefit being a
+   * more informative error message than if the length
+   * was supplied directly.
+   *
+   *     expect('foo').to.have.length.below(4);
+   *     expect([ 1, 2, 3 ]).to.have.length.below(4);
+   *
+   * @name below
+   * @alias lt
+   * @alias lessThan
+   * @param {Number} value
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertBelow (n, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    if (flag(this, 'doLength')) {
+      new Assertion(obj, msg).to.have.property('length');
+      var len = obj.length;
+      this.assert(
+          len < n
+        , 'expected #{this} to have a length below #{exp} but got #{act}'
+        , 'expected #{this} to not have a length below #{exp}'
+        , n
+        , len
+      );
+    } else {
+      this.assert(
+          obj < n
+        , 'expected #{this} to be below ' + n
+        , 'expected #{this} to be at least ' + n
+      );
+    }
+  }
+
+  Assertion.addMethod('below', assertBelow);
+  Assertion.addMethod('lt', assertBelow);
+  Assertion.addMethod('lessThan', assertBelow);
+
+  /**
+   * ### .most(value)
+   *
+   * Asserts that the target is less than or equal to `value`.
+   *
+   *     expect(5).to.be.at.most(5);
+   *
+   * Can also be used in conjunction with `length` to
+   * assert a maximum length. The benefit being a
+   * more informative error message than if the length
+   * was supplied directly.
+   *
+   *     expect('foo').to.have.length.of.at.most(4);
+   *     expect([ 1, 2, 3 ]).to.have.length.of.at.most(3);
+   *
+   * @name most
+   * @alias lte
+   * @param {Number} value
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertMost (n, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    if (flag(this, 'doLength')) {
+      new Assertion(obj, msg).to.have.property('length');
+      var len = obj.length;
+      this.assert(
+          len <= n
+        , 'expected #{this} to have a length at most #{exp} but got #{act}'
+        , 'expected #{this} to have a length above #{exp}'
+        , n
+        , len
+      );
+    } else {
+      this.assert(
+          obj <= n
+        , 'expected #{this} to be at most ' + n
+        , 'expected #{this} to be above ' + n
+      );
+    }
+  }
+
+  Assertion.addMethod('most', assertMost);
+  Assertion.addMethod('lte', assertMost);
+
+  /**
+   * ### .within(start, finish)
+   *
+   * Asserts that the target is within a range.
+   *
+   *     expect(7).to.be.within(5,10);
+   *
+   * Can also be used in conjunction with `length` to
+   * assert a length range. The benefit being a
+   * more informative error message than if the length
+   * was supplied directly.
+   *
+   *     expect('foo').to.have.length.within(2,4);
+   *     expect([ 1, 2, 3 ]).to.have.length.within(2,4);
+   *
+   * @name within
+   * @param {Number} start lowerbound inclusive
+   * @param {Number} finish upperbound inclusive
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addMethod('within', function (start, finish, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object')
+      , range = start + '..' + finish;
+    if (flag(this, 'doLength')) {
+      new Assertion(obj, msg).to.have.property('length');
+      var len = obj.length;
+      this.assert(
+          len >= start && len <= finish
+        , 'expected #{this} to have a length within ' + range
+        , 'expected #{this} to not have a length within ' + range
+      );
+    } else {
+      this.assert(
+          obj >= start && obj <= finish
+        , 'expected #{this} to be within ' + range
+        , 'expected #{this} to not be within ' + range
+      );
+    }
+  });
+
+  /**
+   * ### .instanceof(constructor)
+   *
+   * Asserts that the target is an instance of `constructor`.
+   *
+   *     var Tea = function (name) { this.name = name; }
+   *       , Chai = new Tea('chai');
+   *
+   *     expect(Chai).to.be.an.instanceof(Tea);
+   *     expect([ 1, 2, 3 ]).to.be.instanceof(Array);
+   *
+   * @name instanceof
+   * @param {Constructor} constructor
+   * @param {String} message _optional_
+   * @alias instanceOf
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertInstanceOf (constructor, msg) {
+    if (msg) flag(this, 'message', msg);
+    var name = _.getName(constructor);
+    this.assert(
+        flag(this, 'object') instanceof constructor
+      , 'expected #{this} to be an instance of ' + name
+      , 'expected #{this} to not be an instance of ' + name
+    );
+  };
+
+  Assertion.addMethod('instanceof', assertInstanceOf);
+  Assertion.addMethod('instanceOf', assertInstanceOf);
+
+  /**
+   * ### .property(name, [value])
+   *
+   * Asserts that the target has a property `name`, optionally asserting that
+   * the value of that property is strictly equal to  `value`.
+   * If the `deep` flag is set, you can use dot- and bracket-notation for deep
+   * references into objects and arrays.
+   *
+   *     // simple referencing
+   *     var obj = { foo: 'bar' };
+   *     expect(obj).to.have.property('foo');
+   *     expect(obj).to.have.property('foo', 'bar');
+   *
+   *     // deep referencing
+   *     var deepObj = {
+   *         green: { tea: 'matcha' }
+   *       , teas: [ 'chai', 'matcha', { tea: 'konacha' } ]
+   *     };
+   *
+   *     expect(deepObj).to.have.deep.property('green.tea', 'matcha');
+   *     expect(deepObj).to.have.deep.property('teas[1]', 'matcha');
+   *     expect(deepObj).to.have.deep.property('teas[2].tea', 'konacha');
+   *
+   * You can also use an array as the starting point of a `deep.property`
+   * assertion, or traverse nested arrays.
+   *
+   *     var arr = [
+   *         [ 'chai', 'matcha', 'konacha' ]
+   *       , [ { tea: 'chai' }
+   *         , { tea: 'matcha' }
+   *         , { tea: 'konacha' } ]
+   *     ];
+   *
+   *     expect(arr).to.have.deep.property('[0][1]', 'matcha');
+   *     expect(arr).to.have.deep.property('[1][2].tea', 'konacha');
+   *
+   * Furthermore, `property` changes the subject of the assertion
+   * to be the value of that property from the original object. This
+   * permits for further chainable assertions on that property.
+   *
+   *     expect(obj).to.have.property('foo')
+   *       .that.is.a('string');
+   *     expect(deepObj).to.have.property('green')
+   *       .that.is.an('object')
+   *       .that.deep.equals({ tea: 'matcha' });
+   *     expect(deepObj).to.have.property('teas')
+   *       .that.is.an('array')
+   *       .with.deep.property('[2]')
+   *         .that.deep.equals({ tea: 'konacha' });
+   *
+   * Note that dots and bracket in `name` must be backslash-escaped when
+   * the `deep` flag is set, while they must NOT be escaped when the `deep`
+   * flag is not set.
+   *
+   *     // simple referencing
+   *     var css = { '.link[target]': 42 };
+   *     expect(css).to.have.property('.link[target]', 42);
+   *
+   *     // deep referencing
+   *     var deepCss = { '.link': { '[target]': 42 }};
+   *     expect(deepCss).to.have.deep.property('\\.link.\\[target\\]', 42);
+   *
+   * @name property
+   * @alias deep.property
+   * @param {String} name
+   * @param {Mixed} value (optional)
+   * @param {String} message _optional_
+   * @returns value of property for chaining
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addMethod('property', function (name, val, msg) {
+    if (msg) flag(this, 'message', msg);
+
+    var isDeep = !!flag(this, 'deep')
+      , descriptor = isDeep ? 'deep property ' : 'property '
+      , negate = flag(this, 'negate')
+      , obj = flag(this, 'object')
+      , pathInfo = isDeep ? _.getPathInfo(name, obj) : null
+      , hasProperty = isDeep
+        ? pathInfo.exists
+        : _.hasProperty(name, obj)
+      , value = isDeep
+        ? pathInfo.value
+        : obj[name];
+
+    if (negate && arguments.length > 1) {
+      if (undefined === value) {
+        msg = (msg != null) ? msg + ': ' : '';
+        throw new Error(msg + _.inspect(obj) + ' has no ' + descriptor + _.inspect(name));
+      }
+    } else {
+      this.assert(
+          hasProperty
+        , 'expected #{this} to have a ' + descriptor + _.inspect(name)
+        , 'expected #{this} to not have ' + descriptor + _.inspect(name));
+    }
+
+    if (arguments.length > 1) {
+      this.assert(
+          val === value
+        , 'expected #{this} to have a ' + descriptor + _.inspect(name) + ' of #{exp}, but got #{act}'
+        , 'expected #{this} to not have a ' + descriptor + _.inspect(name) + ' of #{act}'
+        , val
+        , value
+      );
+    }
+
+    flag(this, 'object', value);
+  });
+
+
+  /**
+   * ### .ownProperty(name)
+   *
+   * Asserts that the target has an own property `name`.
+   *
+   *     expect('test').to.have.ownProperty('length');
+   *
+   * @name ownProperty
+   * @alias haveOwnProperty
+   * @param {String} name
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertOwnProperty (name, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    this.assert(
+        obj.hasOwnProperty(name)
+      , 'expected #{this} to have own property ' + _.inspect(name)
+      , 'expected #{this} to not have own property ' + _.inspect(name)
+    );
+  }
+
+  Assertion.addMethod('ownProperty', assertOwnProperty);
+  Assertion.addMethod('haveOwnProperty', assertOwnProperty);
+
+  /**
+   * ### .ownPropertyDescriptor(name[, descriptor[, message]])
+   *
+   * Asserts that the target has an own property descriptor `name`, that optionally matches `descriptor`.
+   *
+   *     expect('test').to.have.ownPropertyDescriptor('length');
+   *     expect('test').to.have.ownPropertyDescriptor('length', { enumerable: false, configurable: false, writable: false, value: 4 });
+   *     expect('test').not.to.have.ownPropertyDescriptor('length', { enumerable: false, configurable: false, writable: false, value: 3 });
+   *     expect('test').ownPropertyDescriptor('length').to.have.property('enumerable', false);
+   *     expect('test').ownPropertyDescriptor('length').to.have.keys('value');
+   *
+   * @name ownPropertyDescriptor
+   * @alias haveOwnPropertyDescriptor
+   * @param {String} name
+   * @param {Object} descriptor _optional_
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertOwnPropertyDescriptor (name, descriptor, msg) {
+    if (typeof descriptor === 'string') {
+      msg = descriptor;
+      descriptor = null;
+    }
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    var actualDescriptor = Object.getOwnPropertyDescriptor(Object(obj), name);
+    if (actualDescriptor && descriptor) {
+      this.assert(
+          _.eql(descriptor, actualDescriptor)
+        , 'expected the own property descriptor for ' + _.inspect(name) + ' on #{this} to match ' + _.inspect(descriptor) + ', got ' + _.inspect(actualDescriptor)
+        , 'expected the own property descriptor for ' + _.inspect(name) + ' on #{this} to not match ' + _.inspect(descriptor)
+        , descriptor
+        , actualDescriptor
+        , true
+      );
+    } else {
+      this.assert(
+          actualDescriptor
+        , 'expected #{this} to have an own property descriptor for ' + _.inspect(name)
+        , 'expected #{this} to not have an own property descriptor for ' + _.inspect(name)
+      );
+    }
+    flag(this, 'object', actualDescriptor);
+  }
+
+  Assertion.addMethod('ownPropertyDescriptor', assertOwnPropertyDescriptor);
+  Assertion.addMethod('haveOwnPropertyDescriptor', assertOwnPropertyDescriptor);
+
+  /**
+   * ### .length
+   *
+   * Sets the `doLength` flag later used as a chain precursor to a value
+   * comparison for the `length` property.
+   *
+   *     expect('foo').to.have.length.above(2);
+   *     expect([ 1, 2, 3 ]).to.have.length.above(2);
+   *     expect('foo').to.have.length.below(4);
+   *     expect([ 1, 2, 3 ]).to.have.length.below(4);
+   *     expect('foo').to.have.length.within(2,4);
+   *     expect([ 1, 2, 3 ]).to.have.length.within(2,4);
+   *
+   * *Deprecation notice:* Using `length` as an assertion will be deprecated
+   * in version 2.4.0 and removed in 3.0.0. Code using the old style of
+   * asserting for `length` property value using `length(value)` should be
+   * switched to use `lengthOf(value)` instead.
+   *
+   * @name length
+   * @namespace BDD
+   * @api public
+   */
+
+  /**
+   * ### .lengthOf(value[, message])
+   *
+   * Asserts that the target's `length` property has
+   * the expected value.
+   *
+   *     expect([ 1, 2, 3]).to.have.lengthOf(3);
+   *     expect('foobar').to.have.lengthOf(6);
+   *
+   * @name lengthOf
+   * @param {Number} length
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertLengthChain () {
+    flag(this, 'doLength', true);
+  }
+
+  function assertLength (n, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    new Assertion(obj, msg).to.have.property('length');
+    var len = obj.length;
+
+    this.assert(
+        len == n
+      , 'expected #{this} to have a length of #{exp} but got #{act}'
+      , 'expected #{this} to not have a length of #{act}'
+      , n
+      , len
+    );
+  }
+
+  Assertion.addChainableMethod('length', assertLength, assertLengthChain);
+  Assertion.addMethod('lengthOf', assertLength);
+
+  /**
+   * ### .match(regexp)
+   *
+   * Asserts that the target matches a regular expression.
+   *
+   *     expect('foobar').to.match(/^foo/);
+   *
+   * @name match
+   * @alias matches
+   * @param {RegExp} RegularExpression
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+  function assertMatch(re, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    this.assert(
+        re.exec(obj)
+      , 'expected #{this} to match ' + re
+      , 'expected #{this} not to match ' + re
+    );
+  }
+
+  Assertion.addMethod('match', assertMatch);
+  Assertion.addMethod('matches', assertMatch);
+
+  /**
+   * ### .string(string)
+   *
+   * Asserts that the string target contains another string.
+   *
+   *     expect('foobar').to.have.string('bar');
+   *
+   * @name string
+   * @param {String} string
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addMethod('string', function (str, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    new Assertion(obj, msg).is.a('string');
+
+    this.assert(
+        ~obj.indexOf(str)
+      , 'expected #{this} to contain ' + _.inspect(str)
+      , 'expected #{this} to not contain ' + _.inspect(str)
+    );
+  });
+
+
+  /**
+   * ### .keys(key1, [key2], [...])
+   *
+   * Asserts that the target contains any or all of the passed-in keys.
+   * Use in combination with `any`, `all`, `contains`, or `have` will affect
+   * what will pass.
+   *
+   * When used in conjunction with `any`, at least one key that is passed
+   * in must exist in the target object. This is regardless whether or not
+   * the `have` or `contain` qualifiers are used. Note, either `any` or `all`
+   * should be used in the assertion. If neither are used, the assertion is
+   * defaulted to `all`.
+   *
+   * When both `all` and `contain` are used, the target object must have at
+   * least all of the passed-in keys but may have more keys not listed.
+   *
+   * When both `all` and `have` are used, the target object must both contain
+   * all of the passed-in keys AND the number of keys in the target object must
+   * match the number of keys passed in (in other words, a target object must
+   * have all and only all of the passed-in keys).
+   *
+   *     expect({ foo: 1, bar: 2 }).to.have.any.keys('foo', 'baz');
+   *     expect({ foo: 1, bar: 2 }).to.have.any.keys('foo');
+   *     expect({ foo: 1, bar: 2 }).to.contain.any.keys('bar', 'baz');
+   *     expect({ foo: 1, bar: 2 }).to.contain.any.keys(['foo']);
+   *     expect({ foo: 1, bar: 2 }).to.contain.any.keys({'foo': 6});
+   *     expect({ foo: 1, bar: 2 }).to.have.all.keys(['bar', 'foo']);
+   *     expect({ foo: 1, bar: 2 }).to.have.all.keys({'bar': 6, 'foo': 7});
+   *     expect({ foo: 1, bar: 2, baz: 3 }).to.contain.all.keys(['bar', 'foo']);
+   *     expect({ foo: 1, bar: 2, baz: 3 }).to.contain.all.keys({'bar': 6});
+   *
+   *
+   * @name keys
+   * @alias key
+   * @param {...String|Array|Object} keys
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertKeys (keys) {
+    var obj = flag(this, 'object')
+      , str
+      , ok = true
+      , mixedArgsMsg = 'keys must be given single argument of Array|Object|String, or multiple String arguments';
+
+    switch (_.type(keys)) {
+      case "array":
+        if (arguments.length > 1) throw (new Error(mixedArgsMsg));
+        break;
+      case "object":
+        if (arguments.length > 1) throw (new Error(mixedArgsMsg));
+        keys = Object.keys(keys);
+        break;
+      default:
+        keys = Array.prototype.slice.call(arguments);
+    }
+
+    if (!keys.length) throw new Error('keys required');
+
+    var actual = Object.keys(obj)
+      , expected = keys
+      , len = keys.length
+      , any = flag(this, 'any')
+      , all = flag(this, 'all');
+
+    if (!any && !all) {
+      all = true;
+    }
+
+    // Has any
+    if (any) {
+      var intersection = expected.filter(function(key) {
+        return ~actual.indexOf(key);
+      });
+      ok = intersection.length > 0;
+    }
+
+    // Has all
+    if (all) {
+      ok = keys.every(function(key){
+        return ~actual.indexOf(key);
+      });
+      if (!flag(this, 'negate') && !flag(this, 'contains')) {
+        ok = ok && keys.length == actual.length;
+      }
+    }
+
+    // Key string
+    if (len > 1) {
+      keys = keys.map(function(key){
+        return _.inspect(key);
+      });
+      var last = keys.pop();
+      if (all) {
+        str = keys.join(', ') + ', and ' + last;
+      }
+      if (any) {
+        str = keys.join(', ') + ', or ' + last;
+      }
+    } else {
+      str = _.inspect(keys[0]);
+    }
+
+    // Form
+    str = (len > 1 ? 'keys ' : 'key ') + str;
+
+    // Have / include
+    str = (flag(this, 'contains') ? 'contain ' : 'have ') + str;
+
+    // Assertion
+    this.assert(
+        ok
+      , 'expected #{this} to ' + str
+      , 'expected #{this} to not ' + str
+      , expected.slice(0).sort()
+      , actual.sort()
+      , true
+    );
+  }
+
+  Assertion.addMethod('keys', assertKeys);
+  Assertion.addMethod('key', assertKeys);
+
+  /**
+   * ### .throw(constructor)
+   *
+   * Asserts that the function target will throw a specific error, or specific type of error
+   * (as determined using `instanceof`), optionally with a RegExp or string inclusion test
+   * for the error's message.
+   *
+   *     var err = new ReferenceError('This is a bad function.');
+   *     var fn = function () { throw err; }
+   *     expect(fn).to.throw(ReferenceError);
+   *     expect(fn).to.throw(Error);
+   *     expect(fn).to.throw(/bad function/);
+   *     expect(fn).to.not.throw('good function');
+   *     expect(fn).to.throw(ReferenceError, /bad function/);
+   *     expect(fn).to.throw(err);
+   *
+   * Please note that when a throw expectation is negated, it will check each
+   * parameter independently, starting with error constructor type. The appropriate way
+   * to check for the existence of a type of error but for a message that does not match
+   * is to use `and`.
+   *
+   *     expect(fn).to.throw(ReferenceError)
+   *        .and.not.throw(/good function/);
+   *
+   * @name throw
+   * @alias throws
+   * @alias Throw
+   * @param {ErrorConstructor} constructor
+   * @param {String|RegExp} expected error message
+   * @param {String} message _optional_
+   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+   * @returns error for chaining (null if no error)
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertThrows (constructor, errMsg, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    new Assertion(obj, msg).is.a('function');
+
+    var thrown = false
+      , desiredError = null
+      , name = null
+      , thrownError = null;
+
+    if (arguments.length === 0) {
+      errMsg = null;
+      constructor = null;
+    } else if (constructor && (constructor instanceof RegExp || 'string' === typeof constructor)) {
+      errMsg = constructor;
+      constructor = null;
+    } else if (constructor && constructor instanceof Error) {
+      desiredError = constructor;
+      constructor = null;
+      errMsg = null;
+    } else if (typeof constructor === 'function') {
+      name = constructor.prototype.name;
+      if (!name || (name === 'Error' && constructor !== Error)) {
+        name = constructor.name || (new constructor()).name;
+      }
+    } else {
+      constructor = null;
+    }
+
+    try {
+      obj();
+    } catch (err) {
+      // first, check desired error
+      if (desiredError) {
+        this.assert(
+            err === desiredError
+          , 'expected #{this} to throw #{exp} but #{act} was thrown'
+          , 'expected #{this} to not throw #{exp}'
+          , (desiredError instanceof Error ? desiredError.toString() : desiredError)
+          , (err instanceof Error ? err.toString() : err)
+        );
+
+        flag(this, 'object', err);
+        return this;
+      }
+
+      // next, check constructor
+      if (constructor) {
+        this.assert(
+            err instanceof constructor
+          , 'expected #{this} to throw #{exp} but #{act} was thrown'
+          , 'expected #{this} to not throw #{exp} but #{act} was thrown'
+          , name
+          , (err instanceof Error ? err.toString() : err)
+        );
+
+        if (!errMsg) {
+          flag(this, 'object', err);
+          return this;
+        }
+      }
+
+      // next, check message
+      var message = 'error' === _.type(err) && "message" in err
+        ? err.message
+        : '' + err;
+
+      if ((message != null) && errMsg && errMsg instanceof RegExp) {
+        this.assert(
+            errMsg.exec(message)
+          , 'expected #{this} to throw error matching #{exp} but got #{act}'
+          , 'expected #{this} to throw error not matching #{exp}'
+          , errMsg
+          , message
+        );
+
+        flag(this, 'object', err);
+        return this;
+      } else if ((message != null) && errMsg && 'string' === typeof errMsg) {
+        this.assert(
+            ~message.indexOf(errMsg)
+          , 'expected #{this} to throw error including #{exp} but got #{act}'
+          , 'expected #{this} to throw error not including #{act}'
+          , errMsg
+          , message
+        );
+
+        flag(this, 'object', err);
+        return this;
+      } else {
+        thrown = true;
+        thrownError = err;
+      }
+    }
+
+    var actuallyGot = ''
+      , expectedThrown = name !== null
+        ? name
+        : desiredError
+          ? '#{exp}' //_.inspect(desiredError)
+          : 'an error';
+
+    if (thrown) {
+      actuallyGot = ' but #{act} was thrown'
+    }
+
+    this.assert(
+        thrown === true
+      , 'expected #{this} to throw ' + expectedThrown + actuallyGot
+      , 'expected #{this} to not throw ' + expectedThrown + actuallyGot
+      , (desiredError instanceof Error ? desiredError.toString() : desiredError)
+      , (thrownError instanceof Error ? thrownError.toString() : thrownError)
+    );
+
+    flag(this, 'object', thrownError);
+  };
+
+  Assertion.addMethod('throw', assertThrows);
+  Assertion.addMethod('throws', assertThrows);
+  Assertion.addMethod('Throw', assertThrows);
+
+  /**
+   * ### .respondTo(method)
+   *
+   * Asserts that the object or class target will respond to a method.
+   *
+   *     Klass.prototype.bar = function(){};
+   *     expect(Klass).to.respondTo('bar');
+   *     expect(obj).to.respondTo('bar');
+   *
+   * To check if a constructor will respond to a static function,
+   * set the `itself` flag.
+   *
+   *     Klass.baz = function(){};
+   *     expect(Klass).itself.to.respondTo('baz');
+   *
+   * @name respondTo
+   * @alias respondsTo
+   * @param {String} method
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function respondTo (method, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object')
+      , itself = flag(this, 'itself')
+      , context = ('function' === _.type(obj) && !itself)
+        ? obj.prototype[method]
+        : obj[method];
+
+    this.assert(
+        'function' === typeof context
+      , 'expected #{this} to respond to ' + _.inspect(method)
+      , 'expected #{this} to not respond to ' + _.inspect(method)
+    );
+  }
+
+  Assertion.addMethod('respondTo', respondTo);
+  Assertion.addMethod('respondsTo', respondTo);
+
+  /**
+   * ### .itself
+   *
+   * Sets the `itself` flag, later used by the `respondTo` assertion.
+   *
+   *     function Foo() {}
+   *     Foo.bar = function() {}
+   *     Foo.prototype.baz = function() {}
+   *
+   *     expect(Foo).itself.to.respondTo('bar');
+   *     expect(Foo).itself.not.to.respondTo('baz');
+   *
+   * @name itself
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('itself', function () {
+    flag(this, 'itself', true);
+  });
+
+  /**
+   * ### .satisfy(method)
+   *
+   * Asserts that the target passes a given truth test.
+   *
+   *     expect(1).to.satisfy(function(num) { return num > 0; });
+   *
+   * @name satisfy
+   * @alias satisfies
+   * @param {Function} matcher
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function satisfy (matcher, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+    var result = matcher(obj);
+    this.assert(
+        result
+      , 'expected #{this} to satisfy ' + _.objDisplay(matcher)
+      , 'expected #{this} to not satisfy' + _.objDisplay(matcher)
+      , this.negate ? false : true
+      , result
+    );
+  }
+
+  Assertion.addMethod('satisfy', satisfy);
+  Assertion.addMethod('satisfies', satisfy);
+
+  /**
+   * ### .closeTo(expected, delta)
+   *
+   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   *
+   *     expect(1.5).to.be.closeTo(1, 0.5);
+   *
+   * @name closeTo
+   * @alias approximately
+   * @param {Number} expected
+   * @param {Number} delta
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function closeTo(expected, delta, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+
+    new Assertion(obj, msg).is.a('number');
+    if (_.type(expected) !== 'number' || _.type(delta) !== 'number') {
+      throw new Error('the arguments to closeTo or approximately must be numbers');
+    }
+
+    this.assert(
+        Math.abs(obj - expected) <= delta
+      , 'expected #{this} to be close to ' + expected + ' +/- ' + delta
+      , 'expected #{this} not to be close to ' + expected + ' +/- ' + delta
+    );
+  }
+
+  Assertion.addMethod('closeTo', closeTo);
+  Assertion.addMethod('approximately', closeTo);
+
+  function isSubsetOf(subset, superset, cmp) {
+    return subset.every(function(elem) {
+      if (!cmp) return superset.indexOf(elem) !== -1;
+
+      return superset.some(function(elem2) {
+        return cmp(elem, elem2);
+      });
+    })
+  }
+
+  /**
+   * ### .members(set)
+   *
+   * Asserts that the target is a superset of `set`,
+   * or that the target and `set` have the same strictly-equal (===) members.
+   * Alternately, if the `deep` flag is set, set members are compared for deep
+   * equality.
+   *
+   *     expect([1, 2, 3]).to.include.members([3, 2]);
+   *     expect([1, 2, 3]).to.not.include.members([3, 2, 8]);
+   *
+   *     expect([4, 2]).to.have.members([2, 4]);
+   *     expect([5, 2]).to.not.have.members([5, 2, 1]);
+   *
+   *     expect([{ id: 1 }]).to.deep.include.members([{ id: 1 }]);
+   *
+   * @name members
+   * @param {Array} set
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addMethod('members', function (subset, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object');
+
+    new Assertion(obj).to.be.an('array');
+    new Assertion(subset).to.be.an('array');
+
+    var cmp = flag(this, 'deep') ? _.eql : undefined;
+
+    if (flag(this, 'contains')) {
+      return this.assert(
+          isSubsetOf(subset, obj, cmp)
+        , 'expected #{this} to be a superset of #{act}'
+        , 'expected #{this} to not be a superset of #{act}'
+        , obj
+        , subset
+      );
+    }
+
+    this.assert(
+        isSubsetOf(obj, subset, cmp) && isSubsetOf(subset, obj, cmp)
+        , 'expected #{this} to have the same members as #{act}'
+        , 'expected #{this} to not have the same members as #{act}'
+        , obj
+        , subset
+    );
+  });
+
+  /**
+   * ### .oneOf(list)
+   *
+   * Assert that a value appears somewhere in the top level of array `list`.
+   *
+   *     expect('a').to.be.oneOf(['a', 'b', 'c']);
+   *     expect(9).to.not.be.oneOf(['z']);
+   *     expect([3]).to.not.be.oneOf([1, 2, [3]]);
+   *
+   *     var three = [3];
+   *     // for object-types, contents are not compared
+   *     expect(three).to.not.be.oneOf([1, 2, [3]]);
+   *     // comparing references works
+   *     expect(three).to.be.oneOf([1, 2, three]);
+   *
+   * @name oneOf
+   * @param {Array<*>} list
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function oneOf (list, msg) {
+    if (msg) flag(this, 'message', msg);
+    var expected = flag(this, 'object');
+    new Assertion(list).to.be.an('array');
+
+    this.assert(
+        list.indexOf(expected) > -1
+      , 'expected #{this} to be one of #{exp}'
+      , 'expected #{this} to not be one of #{exp}'
+      , list
+      , expected
+    );
+  }
+
+  Assertion.addMethod('oneOf', oneOf);
+
+
+  /**
+   * ### .change(function)
+   *
+   * Asserts that a function changes an object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val += 3 };
+   *     var noChangeFn = function() { return 'foo' + 'bar'; }
+   *     expect(fn).to.change(obj, 'val');
+   *     expect(noChangeFn).to.not.change(obj, 'val')
+   *
+   * @name change
+   * @alias changes
+   * @alias Change
+   * @param {String} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertChanges (object, prop, msg) {
+    if (msg) flag(this, 'message', msg);
+    var fn = flag(this, 'object');
+    new Assertion(object, msg).to.have.property(prop);
+    new Assertion(fn).is.a('function');
+
+    var initial = object[prop];
+    fn();
+
+    this.assert(
+      initial !== object[prop]
+      , 'expected .' + prop + ' to change'
+      , 'expected .' + prop + ' to not change'
+    );
+  }
+
+  Assertion.addChainableMethod('change', assertChanges);
+  Assertion.addChainableMethod('changes', assertChanges);
+
+  /**
+   * ### .increase(function)
+   *
+   * Asserts that a function increases an object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 15 };
+   *     expect(fn).to.increase(obj, 'val');
+   *
+   * @name increase
+   * @alias increases
+   * @alias Increase
+   * @param {String} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertIncreases (object, prop, msg) {
+    if (msg) flag(this, 'message', msg);
+    var fn = flag(this, 'object');
+    new Assertion(object, msg).to.have.property(prop);
+    new Assertion(fn).is.a('function');
+
+    var initial = object[prop];
+    fn();
+
+    this.assert(
+      object[prop] - initial > 0
+      , 'expected .' + prop + ' to increase'
+      , 'expected .' + prop + ' to not increase'
+    );
+  }
+
+  Assertion.addChainableMethod('increase', assertIncreases);
+  Assertion.addChainableMethod('increases', assertIncreases);
+
+  /**
+   * ### .decrease(function)
+   *
+   * Asserts that a function decreases an object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 5 };
+   *     expect(fn).to.decrease(obj, 'val');
+   *
+   * @name decrease
+   * @alias decreases
+   * @alias Decrease
+   * @param {String} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertDecreases (object, prop, msg) {
+    if (msg) flag(this, 'message', msg);
+    var fn = flag(this, 'object');
+    new Assertion(object, msg).to.have.property(prop);
+    new Assertion(fn).is.a('function');
+
+    var initial = object[prop];
+    fn();
+
+    this.assert(
+      object[prop] - initial < 0
+      , 'expected .' + prop + ' to decrease'
+      , 'expected .' + prop + ' to not decrease'
+    );
+  }
+
+  Assertion.addChainableMethod('decrease', assertDecreases);
+  Assertion.addChainableMethod('decreases', assertDecreases);
+
+  /**
+   * ### .extensible
+   *
+   * Asserts that the target is extensible (can have new properties added to
+   * it).
+   *
+   *     var nonExtensibleObject = Object.preventExtensions({});
+   *     var sealedObject = Object.seal({});
+   *     var frozenObject = Object.freeze({});
+   *
+   *     expect({}).to.be.extensible;
+   *     expect(nonExtensibleObject).to.not.be.extensible;
+   *     expect(sealedObject).to.not.be.extensible;
+   *     expect(frozenObject).to.not.be.extensible;
+   *
+   * @name extensible
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('extensible', function() {
+    var obj = flag(this, 'object');
+
+    // In ES5, if the argument to this method is not an object (a primitive), then it will cause a TypeError.
+    // In ES6, a non-object argument will be treated as if it was a non-extensible ordinary object, simply return false.
+    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible
+    // The following provides ES6 behavior when a TypeError is thrown under ES5.
+
+    var isExtensible;
+
+    try {
+      isExtensible = Object.isExtensible(obj);
+    } catch (err) {
+      if (err instanceof TypeError) isExtensible = false;
+      else throw err;
+    }
+
+    this.assert(
+      isExtensible
+      , 'expected #{this} to be extensible'
+      , 'expected #{this} to not be extensible'
+    );
+  });
+
+  /**
+   * ### .sealed
+   *
+   * Asserts that the target is sealed (cannot have new properties added to it
+   * and its existing properties cannot be removed).
+   *
+   *     var sealedObject = Object.seal({});
+   *     var frozenObject = Object.freeze({});
+   *
+   *     expect(sealedObject).to.be.sealed;
+   *     expect(frozenObject).to.be.sealed;
+   *     expect({}).to.not.be.sealed;
+   *
+   * @name sealed
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('sealed', function() {
+    var obj = flag(this, 'object');
+
+    // In ES5, if the argument to this method is not an object (a primitive), then it will cause a TypeError.
+    // In ES6, a non-object argument will be treated as if it was a sealed ordinary object, simply return true.
+    // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isSealed
+    // The following provides ES6 behavior when a TypeError is thrown under ES5.
+
+    var isSealed;
+
+    try {
+      isSealed = Object.isSealed(obj);
+    } catch (err) {
+      if (err instanceof TypeError) isSealed = true;
+      else throw err;
+    }
+
+    this.assert(
+      isSealed
+      , 'expected #{this} to be sealed'
+      , 'expected #{this} to not be sealed'
+    );
+  });
+
+  /**
+   * ### .frozen
+   *
+   * Asserts that the target is frozen (cannot have new properties added to it
+   * and its existing properties cannot be modified).
+   *
+   *     var frozenObject = Object.freeze({});
+   *
+   *     expect(frozenObject).to.be.frozen;
+   *     expect({}).to.not.be.frozen;
+   *
+   * @name frozen
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('frozen', function() {
+    var obj = flag(this, 'object');
+
+    // In ES5, if the argument to this method is not an object (a primitive), then it will cause a TypeError.
+    // In ES6, a non-object argument will be treated as if it was a frozen ordinary object, simply return true.
+    // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen
+    // The following provides ES6 behavior when a TypeError is thrown under ES5.
+
+    var isFrozen;
+
+    try {
+      isFrozen = Object.isFrozen(obj);
+    } catch (err) {
+      if (err instanceof TypeError) isFrozen = true;
+      else throw err;
+    }
+
+    this.assert(
+      isFrozen
+      , 'expected #{this} to be frozen'
+      , 'expected #{this} to not be frozen'
+    );
+  });
+};
+
+},{}],6:[function(require,module,exports){
+/*!
+ * chai
+ * Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+
+module.exports = function (chai, util) {
+
+  /*!
+   * Chai dependencies.
+   */
+
+  var Assertion = chai.Assertion
+    , flag = util.flag;
+
+  /*!
+   * Module export.
+   */
+
+  /**
+   * ### assert(expression, message)
+   *
+   * Write your own test expressions.
+   *
+   *     assert('foo' !== 'bar', 'foo is not bar');
+   *     assert(Array.isArray([]), 'empty arrays are arrays');
+   *
+   * @param {Mixed} expression to test for truthiness
+   * @param {String} message to display on error
+   * @name assert
+   * @namespace Assert
+   * @api public
+   */
+
+  var assert = chai.assert = function (express, errmsg) {
+    var test = new Assertion(null, null, chai.assert);
+    test.assert(
+        express
+      , errmsg
+      , '[ negation message unavailable ]'
+    );
+  };
+
+  /**
+   * ### .fail(actual, expected, [message], [operator])
+   *
+   * Throw a failure. Node.js `assert` module-compatible.
+   *
+   * @name fail
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @param {String} operator
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.fail = function (actual, expected, message, operator) {
+    message = message || 'assert.fail()';
+    throw new chai.AssertionError(message, {
+        actual: actual
+      , expected: expected
+      , operator: operator
+    }, assert.fail);
+  };
+
+  /**
+   * ### .isOk(object, [message])
+   *
+   * Asserts that `object` is truthy.
+   *
+   *     assert.isOk('everything', 'everything is ok');
+   *     assert.isOk(false, 'this will fail');
+   *
+   * @name isOk
+   * @alias ok
+   * @param {Mixed} object to test
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isOk = function (val, msg) {
+    new Assertion(val, msg).is.ok;
+  };
+
+  /**
+   * ### .isNotOk(object, [message])
+   *
+   * Asserts that `object` is falsy.
+   *
+   *     assert.isNotOk('everything', 'this will fail');
+   *     assert.isNotOk(false, 'this will pass');
+   *
+   * @name isNotOk
+   * @alias notOk
+   * @param {Mixed} object to test
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotOk = function (val, msg) {
+    new Assertion(val, msg).is.not.ok;
+  };
+
+  /**
+   * ### .equal(actual, expected, [message])
+   *
+   * Asserts non-strict equality (`==`) of `actual` and `expected`.
+   *
+   *     assert.equal(3, '3', '== coerces values to strings');
+   *
+   * @name equal
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.equal = function (act, exp, msg) {
+    var test = new Assertion(act, msg, assert.equal);
+
+    test.assert(
+        exp == flag(test, 'object')
+      , 'expected #{this} to equal #{exp}'
+      , 'expected #{this} to not equal #{act}'
+      , exp
+      , act
+    );
+  };
+
+  /**
+   * ### .notEqual(actual, expected, [message])
+   *
+   * Asserts non-strict inequality (`!=`) of `actual` and `expected`.
+   *
+   *     assert.notEqual(3, 4, 'these numbers are not equal');
+   *
+   * @name notEqual
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notEqual = function (act, exp, msg) {
+    var test = new Assertion(act, msg, assert.notEqual);
+
+    test.assert(
+        exp != flag(test, 'object')
+      , 'expected #{this} to not equal #{exp}'
+      , 'expected #{this} to equal #{act}'
+      , exp
+      , act
+    );
+  };
+
+  /**
+   * ### .strictEqual(actual, expected, [message])
+   *
+   * Asserts strict equality (`===`) of `actual` and `expected`.
+   *
+   *     assert.strictEqual(true, true, 'these booleans are strictly equal');
+   *
+   * @name strictEqual
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.strictEqual = function (act, exp, msg) {
+    new Assertion(act, msg).to.equal(exp);
+  };
+
+  /**
+   * ### .notStrictEqual(actual, expected, [message])
+   *
+   * Asserts strict inequality (`!==`) of `actual` and `expected`.
+   *
+   *     assert.notStrictEqual(3, '3', 'no coercion for strict equality');
+   *
+   * @name notStrictEqual
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notStrictEqual = function (act, exp, msg) {
+    new Assertion(act, msg).to.not.equal(exp);
+  };
+
+  /**
+   * ### .deepEqual(actual, expected, [message])
+   *
+   * Asserts that `actual` is deeply equal to `expected`.
+   *
+   *     assert.deepEqual({ tea: 'green' }, { tea: 'green' });
+   *
+   * @name deepEqual
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.deepEqual = function (act, exp, msg) {
+    new Assertion(act, msg).to.eql(exp);
+  };
+
+  /**
+   * ### .notDeepEqual(actual, expected, [message])
+   *
+   * Assert that `actual` is not deeply equal to `expected`.
+   *
+   *     assert.notDeepEqual({ tea: 'green' }, { tea: 'jasmine' });
+   *
+   * @name notDeepEqual
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notDeepEqual = function (act, exp, msg) {
+    new Assertion(act, msg).to.not.eql(exp);
+  };
+
+   /**
+   * ### .isAbove(valueToCheck, valueToBeAbove, [message])
+   *
+   * Asserts `valueToCheck` is strictly greater than (>) `valueToBeAbove`
+   *
+   *     assert.isAbove(5, 2, '5 is strictly greater than 2');
+   *
+   * @name isAbove
+   * @param {Mixed} valueToCheck
+   * @param {Mixed} valueToBeAbove
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isAbove = function (val, abv, msg) {
+    new Assertion(val, msg).to.be.above(abv);
+  };
+
+   /**
+   * ### .isAtLeast(valueToCheck, valueToBeAtLeast, [message])
+   *
+   * Asserts `valueToCheck` is greater than or equal to (>=) `valueToBeAtLeast`
+   *
+   *     assert.isAtLeast(5, 2, '5 is greater or equal to 2');
+   *     assert.isAtLeast(3, 3, '3 is greater or equal to 3');
+   *
+   * @name isAtLeast
+   * @param {Mixed} valueToCheck
+   * @param {Mixed} valueToBeAtLeast
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isAtLeast = function (val, atlst, msg) {
+    new Assertion(val, msg).to.be.least(atlst);
+  };
+
+   /**
+   * ### .isBelow(valueToCheck, valueToBeBelow, [message])
+   *
+   * Asserts `valueToCheck` is strictly less than (<) `valueToBeBelow`
+   *
+   *     assert.isBelow(3, 6, '3 is strictly less than 6');
+   *
+   * @name isBelow
+   * @param {Mixed} valueToCheck
+   * @param {Mixed} valueToBeBelow
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isBelow = function (val, blw, msg) {
+    new Assertion(val, msg).to.be.below(blw);
+  };
+
+   /**
+   * ### .isAtMost(valueToCheck, valueToBeAtMost, [message])
+   *
+   * Asserts `valueToCheck` is less than or equal to (<=) `valueToBeAtMost`
+   *
+   *     assert.isAtMost(3, 6, '3 is less than or equal to 6');
+   *     assert.isAtMost(4, 4, '4 is less than or equal to 4');
+   *
+   * @name isAtMost
+   * @param {Mixed} valueToCheck
+   * @param {Mixed} valueToBeAtMost
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isAtMost = function (val, atmst, msg) {
+    new Assertion(val, msg).to.be.most(atmst);
+  };
+
+  /**
+   * ### .isTrue(value, [message])
+   *
+   * Asserts that `value` is true.
+   *
+   *     var teaServed = true;
+   *     assert.isTrue(teaServed, 'the tea has been served');
+   *
+   * @name isTrue
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isTrue = function (val, msg) {
+    new Assertion(val, msg).is['true'];
+  };
+
+  /**
+   * ### .isNotTrue(value, [message])
+   *
+   * Asserts that `value` is not true.
+   *
+   *     var tea = 'tasty chai';
+   *     assert.isNotTrue(tea, 'great, time for tea!');
+   *
+   * @name isNotTrue
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotTrue = function (val, msg) {
+    new Assertion(val, msg).to.not.equal(true);
+  };
+
+  /**
+   * ### .isFalse(value, [message])
+   *
+   * Asserts that `value` is false.
+   *
+   *     var teaServed = false;
+   *     assert.isFalse(teaServed, 'no tea yet? hmm...');
+   *
+   * @name isFalse
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isFalse = function (val, msg) {
+    new Assertion(val, msg).is['false'];
+  };
+
+  /**
+   * ### .isNotFalse(value, [message])
+   *
+   * Asserts that `value` is not false.
+   *
+   *     var tea = 'tasty chai';
+   *     assert.isNotFalse(tea, 'great, time for tea!');
+   *
+   * @name isNotFalse
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotFalse = function (val, msg) {
+    new Assertion(val, msg).to.not.equal(false);
+  };
+
+  /**
+   * ### .isNull(value, [message])
+   *
+   * Asserts that `value` is null.
+   *
+   *     assert.isNull(err, 'there was no error');
+   *
+   * @name isNull
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNull = function (val, msg) {
+    new Assertion(val, msg).to.equal(null);
+  };
+
+  /**
+   * ### .isNotNull(value, [message])
+   *
+   * Asserts that `value` is not null.
+   *
+   *     var tea = 'tasty chai';
+   *     assert.isNotNull(tea, 'great, time for tea!');
+   *
+   * @name isNotNull
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotNull = function (val, msg) {
+    new Assertion(val, msg).to.not.equal(null);
+  };
+
+  /**
+   * ### .isNaN
+   * Asserts that value is NaN
+   *
+   *    assert.isNaN('foo', 'foo is NaN');
+   *
+   * @name isNaN
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNaN = function (val, msg) {
+    new Assertion(val, msg).to.be.NaN;
+  };
+
+  /**
+   * ### .isNotNaN
+   * Asserts that value is not NaN
+   *
+   *    assert.isNotNaN(4, '4 is not NaN');
+   *
+   * @name isNotNaN
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+  assert.isNotNaN = function (val, msg) {
+    new Assertion(val, msg).not.to.be.NaN;
+  };
+
+  /**
+   * ### .isUndefined(value, [message])
+   *
+   * Asserts that `value` is `undefined`.
+   *
+   *     var tea;
+   *     assert.isUndefined(tea, 'no tea defined');
+   *
+   * @name isUndefined
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isUndefined = function (val, msg) {
+    new Assertion(val, msg).to.equal(undefined);
+  };
+
+  /**
+   * ### .isDefined(value, [message])
+   *
+   * Asserts that `value` is not `undefined`.
+   *
+   *     var tea = 'cup of chai';
+   *     assert.isDefined(tea, 'tea has been defined');
+   *
+   * @name isDefined
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isDefined = function (val, msg) {
+    new Assertion(val, msg).to.not.equal(undefined);
+  };
+
+  /**
+   * ### .isFunction(value, [message])
+   *
+   * Asserts that `value` is a function.
+   *
+   *     function serveTea() { return 'cup of tea'; };
+   *     assert.isFunction(serveTea, 'great, we can have tea now');
+   *
+   * @name isFunction
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isFunction = function (val, msg) {
+    new Assertion(val, msg).to.be.a('function');
+  };
+
+  /**
+   * ### .isNotFunction(value, [message])
+   *
+   * Asserts that `value` is _not_ a function.
+   *
+   *     var serveTea = [ 'heat', 'pour', 'sip' ];
+   *     assert.isNotFunction(serveTea, 'great, we have listed the steps');
+   *
+   * @name isNotFunction
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotFunction = function (val, msg) {
+    new Assertion(val, msg).to.not.be.a('function');
+  };
+
+  /**
+   * ### .isObject(value, [message])
+   *
+   * Asserts that `value` is an object of type 'Object' (as revealed by `Object.prototype.toString`).
+   * _The assertion does not match subclassed objects._
+   *
+   *     var selection = { name: 'Chai', serve: 'with spices' };
+   *     assert.isObject(selection, 'tea selection is an object');
+   *
+   * @name isObject
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isObject = function (val, msg) {
+    new Assertion(val, msg).to.be.a('object');
+  };
+
+  /**
+   * ### .isNotObject(value, [message])
+   *
+   * Asserts that `value` is _not_ an object of type 'Object' (as revealed by `Object.prototype.toString`).
+   *
+   *     var selection = 'chai'
+   *     assert.isNotObject(selection, 'tea selection is not an object');
+   *     assert.isNotObject(null, 'null is not an object');
+   *
+   * @name isNotObject
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotObject = function (val, msg) {
+    new Assertion(val, msg).to.not.be.a('object');
+  };
+
+  /**
+   * ### .isArray(value, [message])
+   *
+   * Asserts that `value` is an array.
+   *
+   *     var menu = [ 'green', 'chai', 'oolong' ];
+   *     assert.isArray(menu, 'what kind of tea do we want?');
+   *
+   * @name isArray
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isArray = function (val, msg) {
+    new Assertion(val, msg).to.be.an('array');
+  };
+
+  /**
+   * ### .isNotArray(value, [message])
+   *
+   * Asserts that `value` is _not_ an array.
+   *
+   *     var menu = 'green|chai|oolong';
+   *     assert.isNotArray(menu, 'what kind of tea do we want?');
+   *
+   * @name isNotArray
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotArray = function (val, msg) {
+    new Assertion(val, msg).to.not.be.an('array');
+  };
+
+  /**
+   * ### .isString(value, [message])
+   *
+   * Asserts that `value` is a string.
+   *
+   *     var teaOrder = 'chai';
+   *     assert.isString(teaOrder, 'order placed');
+   *
+   * @name isString
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isString = function (val, msg) {
+    new Assertion(val, msg).to.be.a('string');
+  };
+
+  /**
+   * ### .isNotString(value, [message])
+   *
+   * Asserts that `value` is _not_ a string.
+   *
+   *     var teaOrder = 4;
+   *     assert.isNotString(teaOrder, 'order placed');
+   *
+   * @name isNotString
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotString = function (val, msg) {
+    new Assertion(val, msg).to.not.be.a('string');
+  };
+
+  /**
+   * ### .isNumber(value, [message])
+   *
+   * Asserts that `value` is a number.
+   *
+   *     var cups = 2;
+   *     assert.isNumber(cups, 'how many cups');
+   *
+   * @name isNumber
+   * @param {Number} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNumber = function (val, msg) {
+    new Assertion(val, msg).to.be.a('number');
+  };
+
+  /**
+   * ### .isNotNumber(value, [message])
+   *
+   * Asserts that `value` is _not_ a number.
+   *
+   *     var cups = '2 cups please';
+   *     assert.isNotNumber(cups, 'how many cups');
+   *
+   * @name isNotNumber
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotNumber = function (val, msg) {
+    new Assertion(val, msg).to.not.be.a('number');
+  };
+
+  /**
+   * ### .isBoolean(value, [message])
+   *
+   * Asserts that `value` is a boolean.
+   *
+   *     var teaReady = true
+   *       , teaServed = false;
+   *
+   *     assert.isBoolean(teaReady, 'is the tea ready');
+   *     assert.isBoolean(teaServed, 'has tea been served');
+   *
+   * @name isBoolean
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isBoolean = function (val, msg) {
+    new Assertion(val, msg).to.be.a('boolean');
+  };
+
+  /**
+   * ### .isNotBoolean(value, [message])
+   *
+   * Asserts that `value` is _not_ a boolean.
+   *
+   *     var teaReady = 'yep'
+   *       , teaServed = 'nope';
+   *
+   *     assert.isNotBoolean(teaReady, 'is the tea ready');
+   *     assert.isNotBoolean(teaServed, 'has tea been served');
+   *
+   * @name isNotBoolean
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotBoolean = function (val, msg) {
+    new Assertion(val, msg).to.not.be.a('boolean');
+  };
+
+  /**
+   * ### .typeOf(value, name, [message])
+   *
+   * Asserts that `value`'s type is `name`, as determined by
+   * `Object.prototype.toString`.
+   *
+   *     assert.typeOf({ tea: 'chai' }, 'object', 'we have an object');
+   *     assert.typeOf(['chai', 'jasmine'], 'array', 'we have an array');
+   *     assert.typeOf('tea', 'string', 'we have a string');
+   *     assert.typeOf(/tea/, 'regexp', 'we have a regular expression');
+   *     assert.typeOf(null, 'null', 'we have a null');
+   *     assert.typeOf(undefined, 'undefined', 'we have an undefined');
+   *
+   * @name typeOf
+   * @param {Mixed} value
+   * @param {String} name
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.typeOf = function (val, type, msg) {
+    new Assertion(val, msg).to.be.a(type);
+  };
+
+  /**
+   * ### .notTypeOf(value, name, [message])
+   *
+   * Asserts that `value`'s type is _not_ `name`, as determined by
+   * `Object.prototype.toString`.
+   *
+   *     assert.notTypeOf('tea', 'number', 'strings are not numbers');
+   *
+   * @name notTypeOf
+   * @param {Mixed} value
+   * @param {String} typeof name
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notTypeOf = function (val, type, msg) {
+    new Assertion(val, msg).to.not.be.a(type);
+  };
+
+  /**
+   * ### .instanceOf(object, constructor, [message])
+   *
+   * Asserts that `value` is an instance of `constructor`.
+   *
+   *     var Tea = function (name) { this.name = name; }
+   *       , chai = new Tea('chai');
+   *
+   *     assert.instanceOf(chai, Tea, 'chai is an instance of tea');
+   *
+   * @name instanceOf
+   * @param {Object} object
+   * @param {Constructor} constructor
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.instanceOf = function (val, type, msg) {
+    new Assertion(val, msg).to.be.instanceOf(type);
+  };
+
+  /**
+   * ### .notInstanceOf(object, constructor, [message])
+   *
+   * Asserts `value` is not an instance of `constructor`.
+   *
+   *     var Tea = function (name) { this.name = name; }
+   *       , chai = new String('chai');
+   *
+   *     assert.notInstanceOf(chai, Tea, 'chai is not an instance of tea');
+   *
+   * @name notInstanceOf
+   * @param {Object} object
+   * @param {Constructor} constructor
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notInstanceOf = function (val, type, msg) {
+    new Assertion(val, msg).to.not.be.instanceOf(type);
+  };
+
+  /**
+   * ### .include(haystack, needle, [message])
+   *
+   * Asserts that `haystack` includes `needle`. Works
+   * for strings and arrays.
+   *
+   *     assert.include('foobar', 'bar', 'foobar contains string "bar"');
+   *     assert.include([ 1, 2, 3 ], 3, 'array contains value');
+   *
+   * @name include
+   * @param {Array|String} haystack
+   * @param {Mixed} needle
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.include = function (exp, inc, msg) {
+    new Assertion(exp, msg, assert.include).include(inc);
+  };
+
+  /**
+   * ### .notInclude(haystack, needle, [message])
+   *
+   * Asserts that `haystack` does not include `needle`. Works
+   * for strings and arrays.
+   *
+   *     assert.notInclude('foobar', 'baz', 'string not include substring');
+   *     assert.notInclude([ 1, 2, 3 ], 4, 'array not include contain value');
+   *
+   * @name notInclude
+   * @param {Array|String} haystack
+   * @param {Mixed} needle
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notInclude = function (exp, inc, msg) {
+    new Assertion(exp, msg, assert.notInclude).not.include(inc);
+  };
+
+  /**
+   * ### .match(value, regexp, [message])
+   *
+   * Asserts that `value` matches the regular expression `regexp`.
+   *
+   *     assert.match('foobar', /^foo/, 'regexp matches');
+   *
+   * @name match
+   * @param {Mixed} value
+   * @param {RegExp} regexp
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.match = function (exp, re, msg) {
+    new Assertion(exp, msg).to.match(re);
+  };
+
+  /**
+   * ### .notMatch(value, regexp, [message])
+   *
+   * Asserts that `value` does not match the regular expression `regexp`.
+   *
+   *     assert.notMatch('foobar', /^foo/, 'regexp does not match');
+   *
+   * @name notMatch
+   * @param {Mixed} value
+   * @param {RegExp} regexp
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notMatch = function (exp, re, msg) {
+    new Assertion(exp, msg).to.not.match(re);
+  };
+
+  /**
+   * ### .property(object, property, [message])
+   *
+   * Asserts that `object` has a property named by `property`.
+   *
+   *     assert.property({ tea: { green: 'matcha' }}, 'tea');
+   *
+   * @name property
+   * @param {Object} object
+   * @param {String} property
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.property = function (obj, prop, msg) {
+    new Assertion(obj, msg).to.have.property(prop);
+  };
+
+  /**
+   * ### .notProperty(object, property, [message])
+   *
+   * Asserts that `object` does _not_ have a property named by `property`.
+   *
+   *     assert.notProperty({ tea: { green: 'matcha' }}, 'coffee');
+   *
+   * @name notProperty
+   * @param {Object} object
+   * @param {String} property
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg).to.not.have.property(prop);
+  };
+
+  /**
+   * ### .deepProperty(object, property, [message])
+   *
+   * Asserts that `object` has a property named by `property`, which can be a
+   * string using dot- and bracket-notation for deep reference.
+   *
+   *     assert.deepProperty({ tea: { green: 'matcha' }}, 'tea.green');
+   *
+   * @name deepProperty
+   * @param {Object} object
+   * @param {String} property
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.deepProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg).to.have.deep.property(prop);
+  };
+
+  /**
+   * ### .notDeepProperty(object, property, [message])
+   *
+   * Asserts that `object` does _not_ have a property named by `property`, which
+   * can be a string using dot- and bracket-notation for deep reference.
+   *
+   *     assert.notDeepProperty({ tea: { green: 'matcha' }}, 'tea.oolong');
+   *
+   * @name notDeepProperty
+   * @param {Object} object
+   * @param {String} property
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notDeepProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg).to.not.have.deep.property(prop);
+  };
+
+  /**
+   * ### .propertyVal(object, property, value, [message])
+   *
+   * Asserts that `object` has a property named by `property` with value given
+   * by `value`.
+   *
+   *     assert.propertyVal({ tea: 'is good' }, 'tea', 'is good');
+   *
+   * @name propertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.propertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg).to.have.property(prop, val);
+  };
+
+  /**
+   * ### .propertyNotVal(object, property, value, [message])
+   *
+   * Asserts that `object` has a property named by `property`, but with a value
+   * different from that given by `value`.
+   *
+   *     assert.propertyNotVal({ tea: 'is good' }, 'tea', 'is bad');
+   *
+   * @name propertyNotVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.propertyNotVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg).to.not.have.property(prop, val);
+  };
+
+  /**
+   * ### .deepPropertyVal(object, property, value, [message])
+   *
+   * Asserts that `object` has a property named by `property` with value given
+   * by `value`. `property` can use dot- and bracket-notation for deep
+   * reference.
+   *
+   *     assert.deepPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'matcha');
+   *
+   * @name deepPropertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.deepPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg).to.have.deep.property(prop, val);
+  };
+
+  /**
+   * ### .deepPropertyNotVal(object, property, value, [message])
+   *
+   * Asserts that `object` has a property named by `property`, but with a value
+   * different from that given by `value`. `property` can use dot- and
+   * bracket-notation for deep reference.
+   *
+   *     assert.deepPropertyNotVal({ tea: { green: 'matcha' }}, 'tea.green', 'konacha');
+   *
+   * @name deepPropertyNotVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.deepPropertyNotVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg).to.not.have.deep.property(prop, val);
+  };
+
+  /**
+   * ### .lengthOf(object, length, [message])
+   *
+   * Asserts that `object` has a `length` property with the expected value.
+   *
+   *     assert.lengthOf([1,2,3], 3, 'array has length of 3');
+   *     assert.lengthOf('foobar', 6, 'string has length of 6');
+   *
+   * @name lengthOf
+   * @param {Mixed} object
+   * @param {Number} length
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.lengthOf = function (exp, len, msg) {
+    new Assertion(exp, msg).to.have.length(len);
+  };
+
+  /**
+   * ### .throws(function, [constructor/string/regexp], [string/regexp], [message])
+   *
+   * Asserts that `function` will throw an error that is an instance of
+   * `constructor`, or alternately that it will throw an error with message
+   * matching `regexp`.
+   *
+   *     assert.throws(fn, 'function throws a reference error');
+   *     assert.throws(fn, /function throws a reference error/);
+   *     assert.throws(fn, ReferenceError);
+   *     assert.throws(fn, ReferenceError, 'function throws a reference error');
+   *     assert.throws(fn, ReferenceError, /function throws a reference error/);
+   *
+   * @name throws
+   * @alias throw
+   * @alias Throw
+   * @param {Function} function
+   * @param {ErrorConstructor} constructor
+   * @param {RegExp} regexp
+   * @param {String} message
+   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.throws = function (fn, errt, errs, msg) {
+    if ('string' === typeof errt || errt instanceof RegExp) {
+      errs = errt;
+      errt = null;
+    }
+
+    var assertErr = new Assertion(fn, msg).to.throw(errt, errs);
+    return flag(assertErr, 'object');
+  };
+
+  /**
+   * ### .doesNotThrow(function, [constructor/regexp], [message])
+   *
+   * Asserts that `function` will _not_ throw an error that is an instance of
+   * `constructor`, or alternately that it will not throw an error with message
+   * matching `regexp`.
+   *
+   *     assert.doesNotThrow(fn, Error, 'function does not throw');
+   *
+   * @name doesNotThrow
+   * @param {Function} function
+   * @param {ErrorConstructor} constructor
+   * @param {RegExp} regexp
+   * @param {String} message
+   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotThrow = function (fn, type, msg) {
+    if ('string' === typeof type) {
+      msg = type;
+      type = null;
+    }
+
+    new Assertion(fn, msg).to.not.Throw(type);
+  };
+
+  /**
+   * ### .operator(val1, operator, val2, [message])
+   *
+   * Compares two values using `operator`.
+   *
+   *     assert.operator(1, '<', 2, 'everything is ok');
+   *     assert.operator(1, '>', 2, 'this will fail');
+   *
+   * @name operator
+   * @param {Mixed} val1
+   * @param {String} operator
+   * @param {Mixed} val2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.operator = function (val, operator, val2, msg) {
+    var ok;
+    switch(operator) {
+      case '==':
+        ok = val == val2;
+        break;
+      case '===':
+        ok = val === val2;
+        break;
+      case '>':
+        ok = val > val2;
+        break;
+      case '>=':
+        ok = val >= val2;
+        break;
+      case '<':
+        ok = val < val2;
+        break;
+      case '<=':
+        ok = val <= val2;
+        break;
+      case '!=':
+        ok = val != val2;
+        break;
+      case '!==':
+        ok = val !== val2;
+        break;
+      default:
+        throw new Error('Invalid operator "' + operator + '"');
+    }
+    var test = new Assertion(ok, msg);
+    test.assert(
+        true === flag(test, 'object')
+      , 'expected ' + util.inspect(val) + ' to be ' + operator + ' ' + util.inspect(val2)
+      , 'expected ' + util.inspect(val) + ' to not be ' + operator + ' ' + util.inspect(val2) );
+  };
+
+  /**
+   * ### .closeTo(actual, expected, delta, [message])
+   *
+   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   *
+   *     assert.closeTo(1.5, 1, 0.5, 'numbers are close');
+   *
+   * @name closeTo
+   * @param {Number} actual
+   * @param {Number} expected
+   * @param {Number} delta
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.closeTo = function (act, exp, delta, msg) {
+    new Assertion(act, msg).to.be.closeTo(exp, delta);
+  };
+
+  /**
+   * ### .approximately(actual, expected, delta, [message])
+   *
+   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   *
+   *     assert.approximately(1.5, 1, 0.5, 'numbers are close');
+   *
+   * @name approximately
+   * @param {Number} actual
+   * @param {Number} expected
+   * @param {Number} delta
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.approximately = function (act, exp, delta, msg) {
+    new Assertion(act, msg).to.be.approximately(exp, delta);
+  };
+
+  /**
+   * ### .sameMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` have the same members.
+   * Order is not taken into account.
+   *
+   *     assert.sameMembers([ 1, 2, 3 ], [ 2, 1, 3 ], 'same members');
+   *
+   * @name sameMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.sameMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg).to.have.same.members(set2);
+  }
+
+  /**
+   * ### .sameDeepMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` have the same members - using a deep equality checking.
+   * Order is not taken into account.
+   *
+   *     assert.sameDeepMembers([ {b: 3}, {a: 2}, {c: 5} ], [ {c: 5}, {b: 3}, {a: 2} ], 'same deep members');
+   *
+   * @name sameDeepMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.sameDeepMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg).to.have.same.deep.members(set2);
+  }
+
+  /**
+   * ### .includeMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` is included in `superset`.
+   * Order is not taken into account.
+   *
+   *     assert.includeMembers([ 1, 2, 3 ], [ 2, 1 ], 'include members');
+   *
+   * @name includeMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.includeMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg).to.include.members(subset);
+  }
+
+  /**
+   * ### .includeDeepMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` is included in `superset` - using deep equality checking.
+   * Order is not taken into account.
+   * Duplicates are ignored.
+   *
+   *     assert.includeDeepMembers([ {a: 1}, {b: 2}, {c: 3} ], [ {b: 2}, {a: 1}, {b: 2} ], 'include deep members');
+   *
+   * @name includeDeepMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.includeDeepMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg).to.include.deep.members(subset);
+  }
+
+  /**
+   * ### .oneOf(inList, list, [message])
+   *
+   * Asserts that non-object, non-array value `inList` appears in the flat array `list`.
+   *
+   *     assert.oneOf(1, [ 2, 1 ], 'Not found in list');
+   *
+   * @name oneOf
+   * @param {*} inList
+   * @param {Array<*>} list
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.oneOf = function (inList, list, msg) {
+    new Assertion(inList, msg).to.be.oneOf(list);
+  }
+
+   /**
+   * ### .changes(function, object, property)
+   *
+   * Asserts that a function changes the value of a property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 22 };
+   *     assert.changes(fn, obj, 'val');
+   *
+   * @name changes
+   * @param {Function} modifier function
+   * @param {Object} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.changes = function (fn, obj, prop) {
+    new Assertion(fn).to.change(obj, prop);
+  }
+
+   /**
+   * ### .doesNotChange(function, object, property)
+   *
+   * Asserts that a function does not changes the value of a property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { console.log('foo'); };
+   *     assert.doesNotChange(fn, obj, 'val');
+   *
+   * @name doesNotChange
+   * @param {Function} modifier function
+   * @param {Object} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotChange = function (fn, obj, prop) {
+    new Assertion(fn).to.not.change(obj, prop);
+  }
+
+   /**
+   * ### .increases(function, object, property)
+   *
+   * Asserts that a function increases an object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 13 };
+   *     assert.increases(fn, obj, 'val');
+   *
+   * @name increases
+   * @param {Function} modifier function
+   * @param {Object} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.increases = function (fn, obj, prop) {
+    new Assertion(fn).to.increase(obj, prop);
+  }
+
+   /**
+   * ### .doesNotIncrease(function, object, property)
+   *
+   * Asserts that a function does not increase object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 8 };
+   *     assert.doesNotIncrease(fn, obj, 'val');
+   *
+   * @name doesNotIncrease
+   * @param {Function} modifier function
+   * @param {Object} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotIncrease = function (fn, obj, prop) {
+    new Assertion(fn).to.not.increase(obj, prop);
+  }
+
+   /**
+   * ### .decreases(function, object, property)
+   *
+   * Asserts that a function decreases an object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 5 };
+   *     assert.decreases(fn, obj, 'val');
+   *
+   * @name decreases
+   * @param {Function} modifier function
+   * @param {Object} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.decreases = function (fn, obj, prop) {
+    new Assertion(fn).to.decrease(obj, prop);
+  }
+
+   /**
+   * ### .doesNotDecrease(function, object, property)
+   *
+   * Asserts that a function does not decreases an object property
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 15 };
+   *     assert.doesNotDecrease(fn, obj, 'val');
+   *
+   * @name doesNotDecrease
+   * @param {Function} modifier function
+   * @param {Object} object
+   * @param {String} property name
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotDecrease = function (fn, obj, prop) {
+    new Assertion(fn).to.not.decrease(obj, prop);
+  }
+
+  /*!
+   * ### .ifError(object)
+   *
+   * Asserts if value is not a false value, and throws if it is a true value.
+   * This is added to allow for chai to be a drop-in replacement for Node's
+   * assert class.
+   *
+   *     var err = new Error('I am a custom error');
+   *     assert.ifError(err); // Rethrows err!
+   *
+   * @name ifError
+   * @param {Object} object
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.ifError = function (val) {
+    if (val) {
+      throw(val);
+    }
+  };
+
+  /**
+   * ### .isExtensible(object)
+   *
+   * Asserts that `object` is extensible (can have new properties added to it).
+   *
+   *     assert.isExtensible({});
+   *
+   * @name isExtensible
+   * @alias extensible
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isExtensible = function (obj, msg) {
+    new Assertion(obj, msg).to.be.extensible;
+  };
+
+  /**
+   * ### .isNotExtensible(object)
+   *
+   * Asserts that `object` is _not_ extensible.
+   *
+   *     var nonExtensibleObject = Object.preventExtensions({});
+   *     var sealedObject = Object.seal({});
+   *     var frozenObject = Object.freese({});
+   *
+   *     assert.isNotExtensible(nonExtensibleObject);
+   *     assert.isNotExtensible(sealedObject);
+   *     assert.isNotExtensible(frozenObject);
+   *
+   * @name isNotExtensible
+   * @alias notExtensible
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotExtensible = function (obj, msg) {
+    new Assertion(obj, msg).to.not.be.extensible;
+  };
+
+  /**
+   * ### .isSealed(object)
+   *
+   * Asserts that `object` is sealed (cannot have new properties added to it
+   * and its existing properties cannot be removed).
+   *
+   *     var sealedObject = Object.seal({});
+   *     var frozenObject = Object.seal({});
+   *
+   *     assert.isSealed(sealedObject);
+   *     assert.isSealed(frozenObject);
+   *
+   * @name isSealed
+   * @alias sealed
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isSealed = function (obj, msg) {
+    new Assertion(obj, msg).to.be.sealed;
+  };
+
+  /**
+   * ### .isNotSealed(object)
+   *
+   * Asserts that `object` is _not_ sealed.
+   *
+   *     assert.isNotSealed({});
+   *
+   * @name isNotSealed
+   * @alias notSealed
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotSealed = function (obj, msg) {
+    new Assertion(obj, msg).to.not.be.sealed;
+  };
+
+  /**
+   * ### .isFrozen(object)
+   *
+   * Asserts that `object` is frozen (cannot have new properties added to it
+   * and its existing properties cannot be modified).
+   *
+   *     var frozenObject = Object.freeze({});
+   *     assert.frozen(frozenObject);
+   *
+   * @name isFrozen
+   * @alias frozen
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isFrozen = function (obj, msg) {
+    new Assertion(obj, msg).to.be.frozen;
+  };
+
+  /**
+   * ### .isNotFrozen(object)
+   *
+   * Asserts that `object` is _not_ frozen.
+   *
+   *     assert.isNotFrozen({});
+   *
+   * @name isNotFrozen
+   * @alias notFrozen
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotFrozen = function (obj, msg) {
+    new Assertion(obj, msg).to.not.be.frozen;
+  };
+
+  /*!
+   * Aliases.
+   */
+
+  (function alias(name, as){
+    assert[as] = assert[name];
+    return alias;
+  })
+  ('isOk', 'ok')
+  ('isNotOk', 'notOk')
+  ('throws', 'throw')
+  ('throws', 'Throw')
+  ('isExtensible', 'extensible')
+  ('isNotExtensible', 'notExtensible')
+  ('isSealed', 'sealed')
+  ('isNotSealed', 'notSealed')
+  ('isFrozen', 'frozen')
+  ('isNotFrozen', 'notFrozen');
+};
+
+},{}],7:[function(require,module,exports){
+/*!
+ * chai
+ * Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+module.exports = function (chai, util) {
+  chai.expect = function (val, message) {
+    return new chai.Assertion(val, message);
+  };
+
+  /**
+   * ### .fail(actual, expected, [message], [operator])
+   *
+   * Throw a failure.
+   *
+   * @name fail
+   * @param {Mixed} actual
+   * @param {Mixed} expected
+   * @param {String} message
+   * @param {String} operator
+   * @namespace Expect
+   * @api public
+   */
+
+  chai.expect.fail = function (actual, expected, message, operator) {
+    message = message || 'expect.fail()';
+    throw new chai.AssertionError(message, {
+        actual: actual
+      , expected: expected
+      , operator: operator
+    }, chai.expect.fail);
+  };
+};
+
+},{}],8:[function(require,module,exports){
+/*!
+ * chai
+ * Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+module.exports = function (chai, util) {
+  var Assertion = chai.Assertion;
+
+  function loadShould () {
+    // explicitly define this method as function as to have it's name to include as `ssfi`
+    function shouldGetter() {
+      if (this instanceof String || this instanceof Number || this instanceof Boolean ) {
+        return new Assertion(this.valueOf(), null, shouldGetter);
+      }
+      return new Assertion(this, null, shouldGetter);
+    }
+    function shouldSetter(value) {
+      // See https://github.com/chaijs/chai/issues/86: this makes
+      // `whatever.should = someValue` actually set `someValue`, which is
+      // especially useful for `global.should = require('chai').should()`.
+      //
+      // Note that we have to use [[DefineProperty]] instead of [[Put]]
+      // since otherwise we would trigger this very setter!
+      Object.defineProperty(this, 'should', {
+        value: value,
+        enumerable: true,
+        configurable: true,
+        writable: true
+      });
+    }
+    // modify Object.prototype to have `should`
+    Object.defineProperty(Object.prototype, 'should', {
+      set: shouldSetter
+      , get: shouldGetter
+      , configurable: true
+    });
+
+    var should = {};
+
+    /**
+     * ### .fail(actual, expected, [message], [operator])
+     *
+     * Throw a failure.
+     *
+     * @name fail
+     * @param {Mixed} actual
+     * @param {Mixed} expected
+     * @param {String} message
+     * @param {String} operator
+     * @namespace Should
+     * @api public
+     */
+
+    should.fail = function (actual, expected, message, operator) {
+      message = message || 'should.fail()';
+      throw new chai.AssertionError(message, {
+          actual: actual
+        , expected: expected
+        , operator: operator
+      }, should.fail);
+    };
+
+    /**
+     * ### .equal(actual, expected, [message])
+     *
+     * Asserts non-strict equality (`==`) of `actual` and `expected`.
+     *
+     *     should.equal(3, '3', '== coerces values to strings');
+     *
+     * @name equal
+     * @param {Mixed} actual
+     * @param {Mixed} expected
+     * @param {String} message
+     * @namespace Should
+     * @api public
+     */
+
+    should.equal = function (val1, val2, msg) {
+      new Assertion(val1, msg).to.equal(val2);
+    };
+
+    /**
+     * ### .throw(function, [constructor/string/regexp], [string/regexp], [message])
+     *
+     * Asserts that `function` will throw an error that is an instance of
+     * `constructor`, or alternately that it will throw an error with message
+     * matching `regexp`.
+     *
+     *     should.throw(fn, 'function throws a reference error');
+     *     should.throw(fn, /function throws a reference error/);
+     *     should.throw(fn, ReferenceError);
+     *     should.throw(fn, ReferenceError, 'function throws a reference error');
+     *     should.throw(fn, ReferenceError, /function throws a reference error/);
+     *
+     * @name throw
+     * @alias Throw
+     * @param {Function} function
+     * @param {ErrorConstructor} constructor
+     * @param {RegExp} regexp
+     * @param {String} message
+     * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+     * @namespace Should
+     * @api public
+     */
+
+    should.Throw = function (fn, errt, errs, msg) {
+      new Assertion(fn, msg).to.Throw(errt, errs);
+    };
+
+    /**
+     * ### .exist
+     *
+     * Asserts that the target is neither `null` nor `undefined`.
+     *
+     *     var foo = 'hi';
+     *
+     *     should.exist(foo, 'foo exists');
+     *
+     * @name exist
+     * @namespace Should
+     * @api public
+     */
+
+    should.exist = function (val, msg) {
+      new Assertion(val, msg).to.exist;
+    }
+
+    // negation
+    should.not = {}
+
+    /**
+     * ### .not.equal(actual, expected, [message])
+     *
+     * Asserts non-strict inequality (`!=`) of `actual` and `expected`.
+     *
+     *     should.not.equal(3, 4, 'these numbers are not equal');
+     *
+     * @name not.equal
+     * @param {Mixed} actual
+     * @param {Mixed} expected
+     * @param {String} message
+     * @namespace Should
+     * @api public
+     */
+
+    should.not.equal = function (val1, val2, msg) {
+      new Assertion(val1, msg).to.not.equal(val2);
+    };
+
+    /**
+     * ### .throw(function, [constructor/regexp], [message])
+     *
+     * Asserts that `function` will _not_ throw an error that is an instance of
+     * `constructor`, or alternately that it will not throw an error with message
+     * matching `regexp`.
+     *
+     *     should.not.throw(fn, Error, 'function does not throw');
+     *
+     * @name not.throw
+     * @alias not.Throw
+     * @param {Function} function
+     * @param {ErrorConstructor} constructor
+     * @param {RegExp} regexp
+     * @param {String} message
+     * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+     * @namespace Should
+     * @api public
+     */
+
+    should.not.Throw = function (fn, errt, errs, msg) {
+      new Assertion(fn, msg).to.not.Throw(errt, errs);
+    };
+
+    /**
+     * ### .not.exist
+     *
+     * Asserts that the target is neither `null` nor `undefined`.
+     *
+     *     var bar = null;
+     *
+     *     should.not.exist(bar, 'bar does not exist');
+     *
+     * @name not.exist
+     * @namespace Should
+     * @api public
+     */
+
+    should.not.exist = function (val, msg) {
+      new Assertion(val, msg).to.not.exist;
+    }
+
+    should['throw'] = should['Throw'];
+    should.not['throw'] = should.not['Throw'];
+
+    return should;
+  };
+
+  chai.should = loadShould;
+  chai.Should = loadShould;
+};
+
+},{}],9:[function(require,module,exports){
+/*!
+ * Chai - addChainingMethod utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Module dependencies
+ */
+
+var transferFlags = require('./transferFlags');
+var flag = require('./flag');
+var config = require('../config');
+
+/*!
+ * Module variables
+ */
+
+// Check whether `__proto__` is supported
+var hasProtoSupport = '__proto__' in Object;
+
+// Without `__proto__` support, this module will need to add properties to a function.
+// However, some Function.prototype methods cannot be overwritten,
+// and there seems no easy cross-platform way to detect them (@see chaijs/chai/issues/69).
+var excludeNames = /^(?:length|name|arguments|caller)$/;
+
+// Cache `Function` properties
+var call  = Function.prototype.call,
+    apply = Function.prototype.apply;
+
+/**
+ * ### addChainableMethod (ctx, name, method, chainingBehavior)
+ *
+ * Adds a method to an object, such that the method can also be chained.
+ *
+ *     utils.addChainableMethod(chai.Assertion.prototype, 'foo', function (str) {
+ *       var obj = utils.flag(this, 'object');
+ *       new chai.Assertion(obj).to.be.equal(str);
+ *     });
+ *
+ * Can also be accessed directly from `chai.Assertion`.
+ *
+ *     chai.Assertion.addChainableMethod('foo', fn, chainingBehavior);
+ *
+ * The result can then be used as both a method assertion, executing both `method` and
+ * `chainingBehavior`, or as a language chain, which only executes `chainingBehavior`.
+ *
+ *     expect(fooStr).to.be.foo('bar');
+ *     expect(fooStr).to.be.foo.equal('foo');
+ *
+ * @param {Object} ctx object to which the method is added
+ * @param {String} name of method to add
+ * @param {Function} method function to be used for `name`, when called
+ * @param {Function} chainingBehavior function to be called every time the property is accessed
+ * @namespace Utils
+ * @name addChainableMethod
+ * @api public
+ */
+
+module.exports = function (ctx, name, method, chainingBehavior) {
+  if (typeof chainingBehavior !== 'function') {
+    chainingBehavior = function () { };
+  }
+
+  var chainableBehavior = {
+      method: method
+    , chainingBehavior: chainingBehavior
+  };
+
+  // save the methods so we can overwrite them later, if we need to.
+  if (!ctx.__methods) {
+    ctx.__methods = {};
+  }
+  ctx.__methods[name] = chainableBehavior;
+
+  Object.defineProperty(ctx, name,
+    { get: function () {
+        chainableBehavior.chainingBehavior.call(this);
+
+        var assert = function assert() {
+          var old_ssfi = flag(this, 'ssfi');
+          if (old_ssfi && config.includeStack === false)
+            flag(this, 'ssfi', assert);
+          var result = chainableBehavior.method.apply(this, arguments);
+          return result === undefined ? this : result;
+        };
+
+        // Use `__proto__` if available
+        if (hasProtoSupport) {
+          // Inherit all properties from the object by replacing the `Function` prototype
+          var prototype = assert.__proto__ = Object.create(this);
+          // Restore the `call` and `apply` methods from `Function`
+          prototype.call = call;
+          prototype.apply = apply;
+        }
+        // Otherwise, redefine all properties (slow!)
+        else {
+          var asserterNames = Object.getOwnPropertyNames(ctx);
+          asserterNames.forEach(function (asserterName) {
+            if (!excludeNames.test(asserterName)) {
+              var pd = Object.getOwnPropertyDescriptor(ctx, asserterName);
+              Object.defineProperty(assert, asserterName, pd);
+            }
+          });
+        }
+
+        transferFlags(this, assert);
+        return assert;
+      }
+    , configurable: true
+  });
+};
+
+},{"../config":4,"./flag":13,"./transferFlags":29}],10:[function(require,module,exports){
+/*!
+ * Chai - addMethod utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+var config = require('../config');
+
+/**
+ * ### .addMethod (ctx, name, method)
+ *
+ * Adds a method to the prototype of an object.
+ *
+ *     utils.addMethod(chai.Assertion.prototype, 'foo', function (str) {
+ *       var obj = utils.flag(this, 'object');
+ *       new chai.Assertion(obj).to.be.equal(str);
+ *     });
+ *
+ * Can also be accessed directly from `chai.Assertion`.
+ *
+ *     chai.Assertion.addMethod('foo', fn);
+ *
+ * Then can be used as any other assertion.
+ *
+ *     expect(fooStr).to.be.foo('bar');
+ *
+ * @param {Object} ctx object to which the method is added
+ * @param {String} name of method to add
+ * @param {Function} method function to be used for name
+ * @namespace Utils
+ * @name addMethod
+ * @api public
+ */
+var flag = require('./flag');
+
+module.exports = function (ctx, name, method) {
+  ctx[name] = function () {
+    var old_ssfi = flag(this, 'ssfi');
+    if (old_ssfi && config.includeStack === false)
+      flag(this, 'ssfi', ctx[name]);
+    var result = method.apply(this, arguments);
+    return result === undefined ? this : result;
+  };
+};
+
+},{"../config":4,"./flag":13}],11:[function(require,module,exports){
+/*!
+ * Chai - addProperty utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+var config = require('../config');
+var flag = require('./flag');
+
+/**
+ * ### addProperty (ctx, name, getter)
+ *
+ * Adds a property to the prototype of an object.
+ *
+ *     utils.addProperty(chai.Assertion.prototype, 'foo', function () {
+ *       var obj = utils.flag(this, 'object');
+ *       new chai.Assertion(obj).to.be.instanceof(Foo);
+ *     });
+ *
+ * Can also be accessed directly from `chai.Assertion`.
+ *
+ *     chai.Assertion.addProperty('foo', fn);
+ *
+ * Then can be used as any other assertion.
+ *
+ *     expect(myFoo).to.be.foo;
+ *
+ * @param {Object} ctx object to which the property is added
+ * @param {String} name of property to add
+ * @param {Function} getter function to be used for name
+ * @namespace Utils
+ * @name addProperty
+ * @api public
+ */
+
+module.exports = function (ctx, name, getter) {
+  Object.defineProperty(ctx, name,
+    { get: function addProperty() {
+        var old_ssfi = flag(this, 'ssfi');
+        if (old_ssfi && config.includeStack === false)
+          flag(this, 'ssfi', addProperty);
+
+        var result = getter.call(this);
+        return result === undefined ? this : result;
+      }
+    , configurable: true
+  });
+};
+
+},{"../config":4,"./flag":13}],12:[function(require,module,exports){
+/*!
+ * Chai - expectTypes utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### expectTypes(obj, types)
+ *
+ * Ensures that the object being tested against is of a valid type.
+ *
+ *     utils.expectTypes(this, ['array', 'object', 'string']);
+ *
+ * @param {Mixed} obj constructed Assertion
+ * @param {Array} type A list of allowed types for this assertion
+ * @namespace Utils
+ * @name expectTypes
+ * @api public
+ */
+
+var AssertionError = require('assertion-error');
+var flag = require('./flag');
+var type = require('type-detect');
+
+module.exports = function (obj, types) {
+  var obj = flag(obj, 'object');
+  types = types.map(function (t) { return t.toLowerCase(); });
+  types.sort();
+
+  // Transforms ['lorem', 'ipsum'] into 'a lirum, or an ipsum'
+  var str = types.map(function (t, index) {
+    var art = ~[ 'a', 'e', 'i', 'o', 'u' ].indexOf(t.charAt(0)) ? 'an' : 'a';
+    var or = types.length > 1 && index === types.length - 1 ? 'or ' : '';
+    return or + art + ' ' + t;
+  }).join(', ');
+
+  if (!types.some(function (expected) { return type(obj) === expected; })) {
+    throw new AssertionError(
+      'object tested must be ' + str + ', but ' + type(obj) + ' given'
+    );
+  }
+};
+
+},{"./flag":13,"assertion-error":30,"type-detect":35}],13:[function(require,module,exports){
+/*!
+ * Chai - flag utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### flag(object, key, [value])
+ *
+ * Get or set a flag value on an object. If a
+ * value is provided it will be set, else it will
+ * return the currently set value or `undefined` if
+ * the value is not set.
+ *
+ *     utils.flag(this, 'foo', 'bar'); // setter
+ *     utils.flag(this, 'foo'); // getter, returns `bar`
+ *
+ * @param {Object} object constructed Assertion
+ * @param {String} key
+ * @param {Mixed} value (optional)
+ * @namespace Utils
+ * @name flag
+ * @api private
+ */
+
+module.exports = function (obj, key, value) {
+  var flags = obj.__flags || (obj.__flags = Object.create(null));
+  if (arguments.length === 3) {
+    flags[key] = value;
+  } else {
+    return flags[key];
+  }
+};
+
+},{}],14:[function(require,module,exports){
+/*!
+ * Chai - getActual utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * # getActual(object, [actual])
+ *
+ * Returns the `actual` value for an Assertion
+ *
+ * @param {Object} object (constructed Assertion)
+ * @param {Arguments} chai.Assertion.prototype.assert arguments
+ * @namespace Utils
+ * @name getActual
+ */
+
+module.exports = function (obj, args) {
+  return args.length > 4 ? args[4] : obj._obj;
+};
+
+},{}],15:[function(require,module,exports){
+/*!
+ * Chai - getEnumerableProperties utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### .getEnumerableProperties(object)
+ *
+ * This allows the retrieval of enumerable property names of an object,
+ * inherited or not.
+ *
+ * @param {Object} object
+ * @returns {Array}
+ * @namespace Utils
+ * @name getEnumerableProperties
+ * @api public
+ */
+
+module.exports = function getEnumerableProperties(object) {
+  var result = [];
+  for (var name in object) {
+    result.push(name);
+  }
+  return result;
+};
+
+},{}],16:[function(require,module,exports){
+/*!
+ * Chai - message composition utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Module dependancies
+ */
+
+var flag = require('./flag')
+  , getActual = require('./getActual')
+  , inspect = require('./inspect')
+  , objDisplay = require('./objDisplay');
+
+/**
+ * ### .getMessage(object, message, negateMessage)
+ *
+ * Construct the error message based on flags
+ * and template tags. Template tags will return
+ * a stringified inspection of the object referenced.
+ *
+ * Message template tags:
+ * - `#{this}` current asserted object
+ * - `#{act}` actual value
+ * - `#{exp}` expected value
+ *
+ * @param {Object} object (constructed Assertion)
+ * @param {Arguments} chai.Assertion.prototype.assert arguments
+ * @namespace Utils
+ * @name getMessage
+ * @api public
+ */
+
+module.exports = function (obj, args) {
+  var negate = flag(obj, 'negate')
+    , val = flag(obj, 'object')
+    , expected = args[3]
+    , actual = getActual(obj, args)
+    , msg = negate ? args[2] : args[1]
+    , flagMsg = flag(obj, 'message');
+
+  if(typeof msg === "function") msg = msg();
+  msg = msg || '';
+  msg = msg
+    .replace(/#\{this\}/g, function () { return objDisplay(val); })
+    .replace(/#\{act\}/g, function () { return objDisplay(actual); })
+    .replace(/#\{exp\}/g, function () { return objDisplay(expected); });
+
+  return flagMsg ? flagMsg + ': ' + msg : msg;
+};
+
+},{"./flag":13,"./getActual":14,"./inspect":23,"./objDisplay":24}],17:[function(require,module,exports){
+/*!
+ * Chai - getName utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * # getName(func)
+ *
+ * Gets the name of a function, in a cross-browser way.
+ *
+ * @param {Function} a function (usually a constructor)
+ * @namespace Utils
+ * @name getName
+ */
+
+module.exports = function (func) {
+  if (func.name) return func.name;
+
+  var match = /^\s?function ([^(]*)\(/.exec(func);
+  return match && match[1] ? match[1] : "";
+};
+
+},{}],18:[function(require,module,exports){
+/*!
+ * Chai - getPathInfo utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+var hasProperty = require('./hasProperty');
+
+/**
+ * ### .getPathInfo(path, object)
+ *
+ * This allows the retrieval of property info in an
+ * object given a string path.
+ *
+ * The path info consists of an object with the
+ * following properties:
+ *
+ * * parent - The parent object of the property referenced by `path`
+ * * name - The name of the final property, a number if it was an array indexer
+ * * value - The value of the property, if it exists, otherwise `undefined`
+ * * exists - Whether the property exists or not
+ *
+ * @param {String} path
+ * @param {Object} object
+ * @returns {Object} info
+ * @namespace Utils
+ * @name getPathInfo
+ * @api public
+ */
+
+module.exports = function getPathInfo(path, obj) {
+  var parsed = parsePath(path),
+      last = parsed[parsed.length - 1];
+
+  var info = {
+    parent: parsed.length > 1 ? _getPathValue(parsed, obj, parsed.length - 1) : obj,
+    name: last.p || last.i,
+    value: _getPathValue(parsed, obj)
+  };
+  info.exists = hasProperty(info.name, info.parent);
+
+  return info;
+};
+
+
+/*!
+ * ## parsePath(path)
+ *
+ * Helper function used to parse string object
+ * paths. Use in conjunction with `_getPathValue`.
+ *
+ *      var parsed = parsePath('myobject.property.subprop');
+ *
+ * ### Paths:
+ *
+ * * Can be as near infinitely deep and nested
+ * * Arrays are also valid using the formal `myobject.document[3].property`.
+ * * Literal dots and brackets (not delimiter) must be backslash-escaped.
+ *
+ * @param {String} path
+ * @returns {Object} parsed
+ * @api private
+ */
+
+function parsePath (path) {
+  var str = path.replace(/([^\\])\[/g, '$1.[')
+    , parts = str.match(/(\\\.|[^.]+?)+/g);
+  return parts.map(function (value) {
+    var re = /^\[(\d+)\]$/
+      , mArr = re.exec(value);
+    if (mArr) return { i: parseFloat(mArr[1]) };
+    else return { p: value.replace(/\\([.\[\]])/g, '$1') };
+  });
+}
+
+
+/*!
+ * ## _getPathValue(parsed, obj)
+ *
+ * Helper companion function for `.parsePath` that returns
+ * the value located at the parsed address.
+ *
+ *      var value = getPathValue(parsed, obj);
+ *
+ * @param {Object} parsed definition from `parsePath`.
+ * @param {Object} object to search against
+ * @param {Number} object to search against
+ * @returns {Object|Undefined} value
+ * @api private
+ */
+
+function _getPathValue (parsed, obj, index) {
+  var tmp = obj
+    , res;
+
+  index = (index === undefined ? parsed.length : index);
+
+  for (var i = 0, l = index; i < l; i++) {
+    var part = parsed[i];
+    if (tmp) {
+      if ('undefined' !== typeof part.p)
+        tmp = tmp[part.p];
+      else if ('undefined' !== typeof part.i)
+        tmp = tmp[part.i];
+      if (i == (l - 1)) res = tmp;
+    } else {
+      res = undefined;
+    }
+  }
+  return res;
+}
+
+},{"./hasProperty":21}],19:[function(require,module,exports){
+/*!
+ * Chai - getPathValue utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * @see https://github.com/logicalparadox/filtr
+ * MIT Licensed
+ */
+
+var getPathInfo = require('./getPathInfo');
+
+/**
+ * ### .getPathValue(path, object)
+ *
+ * This allows the retrieval of values in an
+ * object given a string path.
+ *
+ *     var obj = {
+ *         prop1: {
+ *             arr: ['a', 'b', 'c']
+ *           , str: 'Hello'
+ *         }
+ *       , prop2: {
+ *             arr: [ { nested: 'Universe' } ]
+ *           , str: 'Hello again!'
+ *         }
+ *     }
+ *
+ * The following would be the results.
+ *
+ *     getPathValue('prop1.str', obj); // Hello
+ *     getPathValue('prop1.att[2]', obj); // b
+ *     getPathValue('prop2.arr[0].nested', obj); // Universe
+ *
+ * @param {String} path
+ * @param {Object} object
+ * @returns {Object} value or `undefined`
+ * @namespace Utils
+ * @name getPathValue
+ * @api public
+ */
+module.exports = function(path, obj) {
+  var info = getPathInfo(path, obj);
+  return info.value;
+};
+
+},{"./getPathInfo":18}],20:[function(require,module,exports){
+/*!
+ * Chai - getProperties utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### .getProperties(object)
+ *
+ * This allows the retrieval of property names of an object, enumerable or not,
+ * inherited or not.
+ *
+ * @param {Object} object
+ * @returns {Array}
+ * @namespace Utils
+ * @name getProperties
+ * @api public
+ */
+
+module.exports = function getProperties(object) {
+  var result = Object.getOwnPropertyNames(object);
+
+  function addProperty(property) {
+    if (result.indexOf(property) === -1) {
+      result.push(property);
+    }
+  }
+
+  var proto = Object.getPrototypeOf(object);
+  while (proto !== null) {
+    Object.getOwnPropertyNames(proto).forEach(addProperty);
+    proto = Object.getPrototypeOf(proto);
+  }
+
+  return result;
+};
+
+},{}],21:[function(require,module,exports){
+/*!
+ * Chai - hasProperty utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+var type = require('type-detect');
+
+/**
+ * ### .hasProperty(object, name)
+ *
+ * This allows checking whether an object has
+ * named property or numeric array index.
+ *
+ * Basically does the same thing as the `in`
+ * operator but works properly with natives
+ * and null/undefined values.
+ *
+ *     var obj = {
+ *         arr: ['a', 'b', 'c']
+ *       , str: 'Hello'
+ *     }
+ *
+ * The following would be the results.
+ *
+ *     hasProperty('str', obj);  // true
+ *     hasProperty('constructor', obj);  // true
+ *     hasProperty('bar', obj);  // false
+ *
+ *     hasProperty('length', obj.str); // true
+ *     hasProperty(1, obj.str);  // true
+ *     hasProperty(5, obj.str);  // false
+ *
+ *     hasProperty('length', obj.arr);  // true
+ *     hasProperty(2, obj.arr);  // true
+ *     hasProperty(3, obj.arr);  // false
+ *
+ * @param {Objuect} object
+ * @param {String|Number} name
+ * @returns {Boolean} whether it exists
+ * @namespace Utils
+ * @name getPathInfo
+ * @api public
+ */
+
+var literals = {
+    'number': Number
+  , 'string': String
+};
+
+module.exports = function hasProperty(name, obj) {
+  var ot = type(obj);
+
+  // Bad Object, obviously no props at all
+  if(ot === 'null' || ot === 'undefined')
+    return false;
+
+  // The `in` operator does not work with certain literals
+  // box these before the check
+  if(literals[ot] && typeof obj !== 'object')
+    obj = new literals[ot](obj);
+
+  return name in obj;
+};
+
+},{"type-detect":35}],22:[function(require,module,exports){
+/*!
+ * chai
+ * Copyright(c) 2011 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Main exports
+ */
+
+var exports = module.exports = {};
+
+/*!
+ * test utility
+ */
+
+exports.test = require('./test');
+
+/*!
+ * type utility
+ */
+
+exports.type = require('type-detect');
+
+/*!
+ * expectTypes utility
+ */
+exports.expectTypes = require('./expectTypes');
+
+/*!
+ * message utility
+ */
+
+exports.getMessage = require('./getMessage');
+
+/*!
+ * actual utility
+ */
+
+exports.getActual = require('./getActual');
+
+/*!
+ * Inspect util
+ */
+
+exports.inspect = require('./inspect');
+
+/*!
+ * Object Display util
+ */
+
+exports.objDisplay = require('./objDisplay');
+
+/*!
+ * Flag utility
+ */
+
+exports.flag = require('./flag');
+
+/*!
+ * Flag transferring utility
+ */
+
+exports.transferFlags = require('./transferFlags');
+
+/*!
+ * Deep equal utility
+ */
+
+exports.eql = require('deep-eql');
+
+/*!
+ * Deep path value
+ */
+
+exports.getPathValue = require('./getPathValue');
+
+/*!
+ * Deep path info
+ */
+
+exports.getPathInfo = require('./getPathInfo');
+
+/*!
+ * Check if a property exists
+ */
+
+exports.hasProperty = require('./hasProperty');
+
+/*!
+ * Function name
+ */
+
+exports.getName = require('./getName');
+
+/*!
+ * add Property
+ */
+
+exports.addProperty = require('./addProperty');
+
+/*!
+ * add Method
+ */
+
+exports.addMethod = require('./addMethod');
+
+/*!
+ * overwrite Property
+ */
+
+exports.overwriteProperty = require('./overwriteProperty');
+
+/*!
+ * overwrite Method
+ */
+
+exports.overwriteMethod = require('./overwriteMethod');
+
+/*!
+ * Add a chainable method
+ */
+
+exports.addChainableMethod = require('./addChainableMethod');
+
+/*!
+ * Overwrite chainable method
+ */
+
+exports.overwriteChainableMethod = require('./overwriteChainableMethod');
+
+},{"./addChainableMethod":9,"./addMethod":10,"./addProperty":11,"./expectTypes":12,"./flag":13,"./getActual":14,"./getMessage":16,"./getName":17,"./getPathInfo":18,"./getPathValue":19,"./hasProperty":21,"./inspect":23,"./objDisplay":24,"./overwriteChainableMethod":25,"./overwriteMethod":26,"./overwriteProperty":27,"./test":28,"./transferFlags":29,"deep-eql":31,"type-detect":35}],23:[function(require,module,exports){
+// This is (almost) directly from Node.js utils
+// https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/util.js
+
+var getName = require('./getName');
+var getProperties = require('./getProperties');
+var getEnumerableProperties = require('./getEnumerableProperties');
+
+module.exports = inspect;
+
+/**
+ * Echos the value of a value. Trys to print the value out
+ * in the best way possible given the different types.
+ *
+ * @param {Object} obj The object to print out.
+ * @param {Boolean} showHidden Flag that shows hidden (not enumerable)
+ *    properties of objects.
+ * @param {Number} depth Depth in which to descend in object. Default is 2.
+ * @param {Boolean} colors Flag to turn on ANSI escape codes to color the
+ *    output. Default is false (no coloring).
+ * @namespace Utils
+ * @name inspect
+ */
+function inspect(obj, showHidden, depth, colors) {
+  var ctx = {
+    showHidden: showHidden,
+    seen: [],
+    stylize: function (str) { return str; }
+  };
+  return formatValue(ctx, obj, (typeof depth === 'undefined' ? 2 : depth));
+}
+
+// Returns true if object is a DOM element.
+var isDOMElement = function (object) {
+  if (typeof HTMLElement === 'object') {
+    return object instanceof HTMLElement;
+  } else {
+    return object &&
+      typeof object === 'object' &&
+      object.nodeType === 1 &&
+      typeof object.nodeName === 'string';
+  }
+};
+
+function formatValue(ctx, value, recurseTimes) {
+  // Provide a hook for user-specified inspect functions.
+  // Check that value is an object with an inspect function on it
+  if (value && typeof value.inspect === 'function' &&
+      // Filter out the util module, it's inspect function is special
+      value.inspect !== exports.inspect &&
+      // Also filter out any prototype objects using the circular check.
+      !(value.constructor && value.constructor.prototype === value)) {
+    var ret = value.inspect(recurseTimes);
+    if (typeof ret !== 'string') {
+      ret = formatValue(ctx, ret, recurseTimes);
+    }
+    return ret;
+  }
+
+  // Primitive types cannot have properties
+  var primitive = formatPrimitive(ctx, value);
+  if (primitive) {
+    return primitive;
+  }
+
+  // If this is a DOM element, try to get the outer HTML.
+  if (isDOMElement(value)) {
+    if ('outerHTML' in value) {
+      return value.outerHTML;
+      // This value does not have an outerHTML attribute,
+      //   it could still be an XML element
+    } else {
+      // Attempt to serialize it
+      try {
+        if (document.xmlVersion) {
+          var xmlSerializer = new XMLSerializer();
+          return xmlSerializer.serializeToString(value);
+        } else {
+          // Firefox 11- do not support outerHTML
+          //   It does, however, support innerHTML
+          //   Use the following to render the element
+          var ns = "http://www.w3.org/1999/xhtml";
+          var container = document.createElementNS(ns, '_');
+
+          container.appendChild(value.cloneNode(false));
+          html = container.innerHTML
+            .replace('><', '>' + value.innerHTML + '<');
+          container.innerHTML = '';
+          return html;
+        }
+      } catch (err) {
+        // This could be a non-native DOM implementation,
+        //   continue with the normal flow:
+        //   printing the element as if it is an object.
+      }
+    }
+  }
+
+  // Look up the keys of the object.
+  var visibleKeys = getEnumerableProperties(value);
+  var keys = ctx.showHidden ? getProperties(value) : visibleKeys;
+
+  // Some type of object without properties can be shortcutted.
+  // In IE, errors have a single `stack` property, or if they are vanilla `Error`,
+  // a `stack` plus `description` property; ignore those for consistency.
+  if (keys.length === 0 || (isError(value) && (
+      (keys.length === 1 && keys[0] === 'stack') ||
+      (keys.length === 2 && keys[0] === 'description' && keys[1] === 'stack')
+     ))) {
+    if (typeof value === 'function') {
+      var name = getName(value);
+      var nameSuffix = name ? ': ' + name : '';
+      return ctx.stylize('[Function' + nameSuffix + ']', 'special');
+    }
+    if (isRegExp(value)) {
+      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+    }
+    if (isDate(value)) {
+      return ctx.stylize(Date.prototype.toUTCString.call(value), 'date');
+    }
+    if (isError(value)) {
+      return formatError(value);
+    }
+  }
+
+  var base = '', array = false, braces = ['{', '}'];
+
+  // Make Array say that they are Array
+  if (isArray(value)) {
+    array = true;
+    braces = ['[', ']'];
+  }
+
+  // Make functions say that they are functions
+  if (typeof value === 'function') {
+    var name = getName(value);
+    var nameSuffix = name ? ': ' + name : '';
+    base = ' [Function' + nameSuffix + ']';
+  }
+
+  // Make RegExps say that they are RegExps
+  if (isRegExp(value)) {
+    base = ' ' + RegExp.prototype.toString.call(value);
+  }
+
+  // Make dates with properties first say the date
+  if (isDate(value)) {
+    base = ' ' + Date.prototype.toUTCString.call(value);
+  }
+
+  // Make error with message first say the error
+  if (isError(value)) {
+    return formatError(value);
+  }
+
+  if (keys.length === 0 && (!array || value.length == 0)) {
+    return braces[0] + base + braces[1];
+  }
+
+  if (recurseTimes < 0) {
+    if (isRegExp(value)) {
+      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+    } else {
+      return ctx.stylize('[Object]', 'special');
+    }
+  }
+
+  ctx.seen.push(value);
+
+  var output;
+  if (array) {
+    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+  } else {
+    output = keys.map(function(key) {
+      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
+    });
+  }
+
+  ctx.seen.pop();
+
+  return reduceToSingleString(output, base, braces);
+}
+
+
+function formatPrimitive(ctx, value) {
+  switch (typeof value) {
+    case 'undefined':
+      return ctx.stylize('undefined', 'undefined');
+
+    case 'string':
+      var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+                                               .replace(/'/g, "\\'")
+                                               .replace(/\\"/g, '"') + '\'';
+      return ctx.stylize(simple, 'string');
+
+    case 'number':
+      if (value === 0 && (1/value) === -Infinity) {
+        return ctx.stylize('-0', 'number');
+      }
+      return ctx.stylize('' + value, 'number');
+
+    case 'boolean':
+      return ctx.stylize('' + value, 'boolean');
+  }
+  // For some reason typeof null is "object", so special case here.
+  if (value === null) {
+    return ctx.stylize('null', 'null');
+  }
+}
+
+
+function formatError(value) {
+  return '[' + Error.prototype.toString.call(value) + ']';
+}
+
+
+function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
+  var output = [];
+  for (var i = 0, l = value.length; i < l; ++i) {
+    if (Object.prototype.hasOwnProperty.call(value, String(i))) {
+      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+          String(i), true));
+    } else {
+      output.push('');
+    }
+  }
+  keys.forEach(function(key) {
+    if (!key.match(/^\d+$/)) {
+      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+          key, true));
+    }
+  });
+  return output;
+}
+
+
+function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+  var name, str;
+  if (value.__lookupGetter__) {
+    if (value.__lookupGetter__(key)) {
+      if (value.__lookupSetter__(key)) {
+        str = ctx.stylize('[Getter/Setter]', 'special');
+      } else {
+        str = ctx.stylize('[Getter]', 'special');
+      }
+    } else {
+      if (value.__lookupSetter__(key)) {
+        str = ctx.stylize('[Setter]', 'special');
+      }
+    }
+  }
+  if (visibleKeys.indexOf(key) < 0) {
+    name = '[' + key + ']';
+  }
+  if (!str) {
+    if (ctx.seen.indexOf(value[key]) < 0) {
+      if (recurseTimes === null) {
+        str = formatValue(ctx, value[key], null);
+      } else {
+        str = formatValue(ctx, value[key], recurseTimes - 1);
+      }
+      if (str.indexOf('\n') > -1) {
+        if (array) {
+          str = str.split('\n').map(function(line) {
+            return '  ' + line;
+          }).join('\n').substr(2);
+        } else {
+          str = '\n' + str.split('\n').map(function(line) {
+            return '   ' + line;
+          }).join('\n');
+        }
+      }
+    } else {
+      str = ctx.stylize('[Circular]', 'special');
+    }
+  }
+  if (typeof name === 'undefined') {
+    if (array && key.match(/^\d+$/)) {
+      return str;
+    }
+    name = JSON.stringify('' + key);
+    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+      name = name.substr(1, name.length - 2);
+      name = ctx.stylize(name, 'name');
+    } else {
+      name = name.replace(/'/g, "\\'")
+                 .replace(/\\"/g, '"')
+                 .replace(/(^"|"$)/g, "'");
+      name = ctx.stylize(name, 'string');
+    }
+  }
+
+  return name + ': ' + str;
+}
+
+
+function reduceToSingleString(output, base, braces) {
+  var numLinesEst = 0;
+  var length = output.reduce(function(prev, cur) {
+    numLinesEst++;
+    if (cur.indexOf('\n') >= 0) numLinesEst++;
+    return prev + cur.length + 1;
+  }, 0);
+
+  if (length > 60) {
+    return braces[0] +
+           (base === '' ? '' : base + '\n ') +
+           ' ' +
+           output.join(',\n  ') +
+           ' ' +
+           braces[1];
+  }
+
+  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+}
+
+function isArray(ar) {
+  return Array.isArray(ar) ||
+         (typeof ar === 'object' && objectToString(ar) === '[object Array]');
+}
+
+function isRegExp(re) {
+  return typeof re === 'object' && objectToString(re) === '[object RegExp]';
+}
+
+function isDate(d) {
+  return typeof d === 'object' && objectToString(d) === '[object Date]';
+}
+
+function isError(e) {
+  return typeof e === 'object' && objectToString(e) === '[object Error]';
+}
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
+
+},{"./getEnumerableProperties":15,"./getName":17,"./getProperties":20}],24:[function(require,module,exports){
+/*!
+ * Chai - flag utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Module dependancies
+ */
+
+var inspect = require('./inspect');
+var config = require('../config');
+
+/**
+ * ### .objDisplay (object)
+ *
+ * Determines if an object or an array matches
+ * criteria to be inspected in-line for error
+ * messages or should be truncated.
+ *
+ * @param {Mixed} javascript object to inspect
+ * @name objDisplay
+ * @namespace Utils
+ * @api public
+ */
+
+module.exports = function (obj) {
+  var str = inspect(obj)
+    , type = Object.prototype.toString.call(obj);
+
+  if (config.truncateThreshold && str.length >= config.truncateThreshold) {
+    if (type === '[object Function]') {
+      return !obj.name || obj.name === ''
+        ? '[Function]'
+        : '[Function: ' + obj.name + ']';
+    } else if (type === '[object Array]') {
+      return '[ Array(' + obj.length + ') ]';
+    } else if (type === '[object Object]') {
+      var keys = Object.keys(obj)
+        , kstr = keys.length > 2
+          ? keys.splice(0, 2).join(', ') + ', ...'
+          : keys.join(', ');
+      return '{ Object (' + kstr + ') }';
+    } else {
+      return str;
+    }
+  } else {
+    return str;
+  }
+};
+
+},{"../config":4,"./inspect":23}],25:[function(require,module,exports){
+/*!
+ * Chai - overwriteChainableMethod utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### overwriteChainableMethod (ctx, name, method, chainingBehavior)
+ *
+ * Overwites an already existing chainable method
+ * and provides access to the previous function or
+ * property.  Must return functions to be used for
+ * name.
+ *
+ *     utils.overwriteChainableMethod(chai.Assertion.prototype, 'length',
+ *       function (_super) {
+ *       }
+ *     , function (_super) {
+ *       }
+ *     );
+ *
+ * Can also be accessed directly from `chai.Assertion`.
+ *
+ *     chai.Assertion.overwriteChainableMethod('foo', fn, fn);
+ *
+ * Then can be used as any other assertion.
+ *
+ *     expect(myFoo).to.have.length(3);
+ *     expect(myFoo).to.have.length.above(3);
+ *
+ * @param {Object} ctx object whose method / property is to be overwritten
+ * @param {String} name of method / property to overwrite
+ * @param {Function} method function that returns a function to be used for name
+ * @param {Function} chainingBehavior function that returns a function to be used for property
+ * @namespace Utils
+ * @name overwriteChainableMethod
+ * @api public
+ */
+
+module.exports = function (ctx, name, method, chainingBehavior) {
+  var chainableBehavior = ctx.__methods[name];
+
+  var _chainingBehavior = chainableBehavior.chainingBehavior;
+  chainableBehavior.chainingBehavior = function () {
+    var result = chainingBehavior(_chainingBehavior).call(this);
+    return result === undefined ? this : result;
+  };
+
+  var _method = chainableBehavior.method;
+  chainableBehavior.method = function () {
+    var result = method(_method).apply(this, arguments);
+    return result === undefined ? this : result;
+  };
+};
+
+},{}],26:[function(require,module,exports){
+/*!
+ * Chai - overwriteMethod utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### overwriteMethod (ctx, name, fn)
+ *
+ * Overwites an already existing method and provides
+ * access to previous function. Must return function
+ * to be used for name.
+ *
+ *     utils.overwriteMethod(chai.Assertion.prototype, 'equal', function (_super) {
+ *       return function (str) {
+ *         var obj = utils.flag(this, 'object');
+ *         if (obj instanceof Foo) {
+ *           new chai.Assertion(obj.value).to.equal(str);
+ *         } else {
+ *           _super.apply(this, arguments);
+ *         }
+ *       }
+ *     });
+ *
+ * Can also be accessed directly from `chai.Assertion`.
+ *
+ *     chai.Assertion.overwriteMethod('foo', fn);
+ *
+ * Then can be used as any other assertion.
+ *
+ *     expect(myFoo).to.equal('bar');
+ *
+ * @param {Object} ctx object whose method is to be overwritten
+ * @param {String} name of method to overwrite
+ * @param {Function} method function that returns a function to be used for name
+ * @namespace Utils
+ * @name overwriteMethod
+ * @api public
+ */
+
+module.exports = function (ctx, name, method) {
+  var _method = ctx[name]
+    , _super = function () { return this; };
+
+  if (_method && 'function' === typeof _method)
+    _super = _method;
+
+  ctx[name] = function () {
+    var result = method(_super).apply(this, arguments);
+    return result === undefined ? this : result;
+  }
+};
+
+},{}],27:[function(require,module,exports){
+/*!
+ * Chai - overwriteProperty utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### overwriteProperty (ctx, name, fn)
+ *
+ * Overwites an already existing property getter and provides
+ * access to previous value. Must return function to use as getter.
+ *
+ *     utils.overwriteProperty(chai.Assertion.prototype, 'ok', function (_super) {
+ *       return function () {
+ *         var obj = utils.flag(this, 'object');
+ *         if (obj instanceof Foo) {
+ *           new chai.Assertion(obj.name).to.equal('bar');
+ *         } else {
+ *           _super.call(this);
+ *         }
+ *       }
+ *     });
+ *
+ *
+ * Can also be accessed directly from `chai.Assertion`.
+ *
+ *     chai.Assertion.overwriteProperty('foo', fn);
+ *
+ * Then can be used as any other assertion.
+ *
+ *     expect(myFoo).to.be.ok;
+ *
+ * @param {Object} ctx object whose property is to be overwritten
+ * @param {String} name of property to overwrite
+ * @param {Function} getter function that returns a getter function to be used for name
+ * @namespace Utils
+ * @name overwriteProperty
+ * @api public
+ */
+
+module.exports = function (ctx, name, getter) {
+  var _get = Object.getOwnPropertyDescriptor(ctx, name)
+    , _super = function () {};
+
+  if (_get && 'function' === typeof _get.get)
+    _super = _get.get
+
+  Object.defineProperty(ctx, name,
+    { get: function () {
+        var result = getter(_super).call(this);
+        return result === undefined ? this : result;
+      }
+    , configurable: true
+  });
+};
+
+},{}],28:[function(require,module,exports){
+/*!
+ * Chai - test utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Module dependancies
+ */
+
+var flag = require('./flag');
+
+/**
+ * # test(object, expression)
+ *
+ * Test and object for expression.
+ *
+ * @param {Object} object (constructed Assertion)
+ * @param {Arguments} chai.Assertion.prototype.assert arguments
+ * @namespace Utils
+ * @name test
+ */
+
+module.exports = function (obj, args) {
+  var negate = flag(obj, 'negate')
+    , expr = args[0];
+  return negate ? !expr : expr;
+};
+
+},{"./flag":13}],29:[function(require,module,exports){
+/*!
+ * Chai - transferFlags utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### transferFlags(assertion, object, includeAll = true)
+ *
+ * Transfer all the flags for `assertion` to `object`. If
+ * `includeAll` is set to `false`, then the base Chai
+ * assertion flags (namely `object`, `ssfi`, and `message`)
+ * will not be transferred.
+ *
+ *
+ *     var newAssertion = new Assertion();
+ *     utils.transferFlags(assertion, newAssertion);
+ *
+ *     var anotherAsseriton = new Assertion(myObj);
+ *     utils.transferFlags(assertion, anotherAssertion, false);
+ *
+ * @param {Assertion} assertion the assertion to transfer the flags from
+ * @param {Object} object the object to transfer the flags to; usually a new assertion
+ * @param {Boolean} includeAll
+ * @namespace Utils
+ * @name transferFlags
+ * @api private
+ */
+
+module.exports = function (assertion, object, includeAll) {
+  var flags = assertion.__flags || (assertion.__flags = Object.create(null));
+
+  if (!object.__flags) {
+    object.__flags = Object.create(null);
+  }
+
+  includeAll = arguments.length === 3 ? includeAll : true;
+
+  for (var flag in flags) {
+    if (includeAll ||
+        (flag !== 'object' && flag !== 'ssfi' && flag != 'message')) {
+      object.__flags[flag] = flags[flag];
+    }
+  }
+};
+
+},{}],30:[function(require,module,exports){
+/*!
+ * assertion-error
+ * Copyright(c) 2013 Jake Luer <jake@qualiancy.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Return a function that will copy properties from
+ * one object to another excluding any originally
+ * listed. Returned function will create a new `{}`.
+ *
+ * @param {String} excluded properties ...
+ * @return {Function}
+ */
+
+function exclude () {
+  var excludes = [].slice.call(arguments);
+
+  function excludeProps (res, obj) {
+    Object.keys(obj).forEach(function (key) {
+      if (!~excludes.indexOf(key)) res[key] = obj[key];
+    });
+  }
+
+  return function extendExclude () {
+    var args = [].slice.call(arguments)
+      , i = 0
+      , res = {};
+
+    for (; i < args.length; i++) {
+      excludeProps(res, args[i]);
+    }
+
+    return res;
+  };
+};
+
+/*!
+ * Primary Exports
+ */
+
+module.exports = AssertionError;
+
+/**
+ * ### AssertionError
+ *
+ * An extension of the JavaScript `Error` constructor for
+ * assertion and validation scenarios.
+ *
+ * @param {String} message
+ * @param {Object} properties to include (optional)
+ * @param {callee} start stack function (optional)
+ */
+
+function AssertionError (message, _props, ssf) {
+  var extend = exclude('name', 'message', 'stack', 'constructor', 'toJSON')
+    , props = extend(_props || {});
+
+  // default values
+  this.message = message || 'Unspecified AssertionError';
+  this.showDiff = false;
+
+  // copy from properties
+  for (var key in props) {
+    this[key] = props[key];
+  }
+
+  // capture stack trace
+  ssf = ssf || arguments.callee;
+  if (ssf && Error.captureStackTrace) {
+    Error.captureStackTrace(this, ssf);
+  } else {
+    this.stack = new Error().stack;
+  }
+}
+
+/*!
+ * Inherit from Error.prototype
+ */
+
+AssertionError.prototype = Object.create(Error.prototype);
+
+/*!
+ * Statically set name
+ */
+
+AssertionError.prototype.name = 'AssertionError';
+
+/*!
+ * Ensure correct constructor
+ */
+
+AssertionError.prototype.constructor = AssertionError;
+
+/**
+ * Allow errors to be converted to JSON for static transfer.
+ *
+ * @param {Boolean} include stack (default: `true`)
+ * @return {Object} object that can be `JSON.stringify`
+ */
+
+AssertionError.prototype.toJSON = function (stack) {
+  var extend = exclude('constructor', 'toJSON', 'stack')
+    , props = extend({ name: this.name }, this);
+
+  // include stack if exists and not turned off
+  if (false !== stack && this.stack) {
+    props.stack = this.stack;
+  }
+
+  return props;
+};
+
+},{}],31:[function(require,module,exports){
+module.exports = require('./lib/eql');
+
+},{"./lib/eql":32}],32:[function(require,module,exports){
+/*!
+ * deep-eql
+ * Copyright(c) 2013 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Module dependencies
+ */
+
+var type = require('type-detect');
+
+/*!
+ * Buffer.isBuffer browser shim
+ */
+
+var Buffer;
+try { Buffer = require('buffer').Buffer; }
+catch(ex) {
+  Buffer = {};
+  Buffer.isBuffer = function() { return false; }
+}
+
+/*!
+ * Primary Export
+ */
+
+module.exports = deepEqual;
+
+/**
+ * Assert super-strict (egal) equality between
+ * two objects of any type.
+ *
+ * @param {Mixed} a
+ * @param {Mixed} b
+ * @param {Array} memoised (optional)
+ * @return {Boolean} equal match
+ */
+
+function deepEqual(a, b, m) {
+  if (sameValue(a, b)) {
+    return true;
+  } else if ('date' === type(a)) {
+    return dateEqual(a, b);
+  } else if ('regexp' === type(a)) {
+    return regexpEqual(a, b);
+  } else if (Buffer.isBuffer(a)) {
+    return bufferEqual(a, b);
+  } else if ('arguments' === type(a)) {
+    return argumentsEqual(a, b, m);
+  } else if (!typeEqual(a, b)) {
+    return false;
+  } else if (('object' !== type(a) && 'object' !== type(b))
+  && ('array' !== type(a) && 'array' !== type(b))) {
+    return sameValue(a, b);
+  } else {
+    return objectEqual(a, b, m);
+  }
+}
+
+/*!
+ * Strict (egal) equality test. Ensures that NaN always
+ * equals NaN and `-0` does not equal `+0`.
+ *
+ * @param {Mixed} a
+ * @param {Mixed} b
+ * @return {Boolean} equal match
+ */
+
+function sameValue(a, b) {
+  if (a === b) return a !== 0 || 1 / a === 1 / b;
+  return a !== a && b !== b;
+}
+
+/*!
+ * Compare the types of two given objects and
+ * return if they are equal. Note that an Array
+ * has a type of `array` (not `object`) and arguments
+ * have a type of `arguments` (not `array`/`object`).
+ *
+ * @param {Mixed} a
+ * @param {Mixed} b
+ * @return {Boolean} result
+ */
+
+function typeEqual(a, b) {
+  return type(a) === type(b);
+}
+
+/*!
+ * Compare two Date objects by asserting that
+ * the time values are equal using `saveValue`.
+ *
+ * @param {Date} a
+ * @param {Date} b
+ * @return {Boolean} result
+ */
+
+function dateEqual(a, b) {
+  if ('date' !== type(b)) return false;
+  return sameValue(a.getTime(), b.getTime());
+}
+
+/*!
+ * Compare two regular expressions by converting them
+ * to string and checking for `sameValue`.
+ *
+ * @param {RegExp} a
+ * @param {RegExp} b
+ * @return {Boolean} result
+ */
+
+function regexpEqual(a, b) {
+  if ('regexp' !== type(b)) return false;
+  return sameValue(a.toString(), b.toString());
+}
+
+/*!
+ * Assert deep equality of two `arguments` objects.
+ * Unfortunately, these must be sliced to arrays
+ * prior to test to ensure no bad behavior.
+ *
+ * @param {Arguments} a
+ * @param {Arguments} b
+ * @param {Array} memoize (optional)
+ * @return {Boolean} result
+ */
+
+function argumentsEqual(a, b, m) {
+  if ('arguments' !== type(b)) return false;
+  a = [].slice.call(a);
+  b = [].slice.call(b);
+  return deepEqual(a, b, m);
+}
+
+/*!
+ * Get enumerable properties of a given object.
+ *
+ * @param {Object} a
+ * @return {Array} property names
+ */
+
+function enumerable(a) {
+  var res = [];
+  for (var key in a) res.push(key);
+  return res;
+}
+
+/*!
+ * Simple equality for flat iterable objects
+ * such as Arrays or Node.js buffers.
+ *
+ * @param {Iterable} a
+ * @param {Iterable} b
+ * @return {Boolean} result
+ */
+
+function iterableEqual(a, b) {
+  if (a.length !==  b.length) return false;
+
+  var i = 0;
+  var match = true;
+
+  for (; i < a.length; i++) {
+    if (a[i] !== b[i]) {
+      match = false;
+      break;
+    }
+  }
+
+  return match;
+}
+
+/*!
+ * Extension to `iterableEqual` specifically
+ * for Node.js Buffers.
+ *
+ * @param {Buffer} a
+ * @param {Mixed} b
+ * @return {Boolean} result
+ */
+
+function bufferEqual(a, b) {
+  if (!Buffer.isBuffer(b)) return false;
+  return iterableEqual(a, b);
+}
+
+/*!
+ * Block for `objectEqual` ensuring non-existing
+ * values don't get in.
+ *
+ * @param {Mixed} object
+ * @return {Boolean} result
+ */
+
+function isValue(a) {
+  return a !== null && a !== undefined;
+}
+
+/*!
+ * Recursively check the equality of two objects.
+ * Once basic sameness has been established it will
+ * defer to `deepEqual` for each enumerable key
+ * in the object.
+ *
+ * @param {Mixed} a
+ * @param {Mixed} b
+ * @return {Boolean} result
+ */
+
+function objectEqual(a, b, m) {
+  if (!isValue(a) || !isValue(b)) {
+    return false;
+  }
+
+  if (a.prototype !== b.prototype) {
+    return false;
+  }
+
+  var i;
+  if (m) {
+    for (i = 0; i < m.length; i++) {
+      if ((m[i][0] === a && m[i][1] === b)
+      ||  (m[i][0] === b && m[i][1] === a)) {
+        return true;
+      }
+    }
+  } else {
+    m = [];
+  }
+
+  try {
+    var ka = enumerable(a);
+    var kb = enumerable(b);
+  } catch (ex) {
+    return false;
+  }
+
+  ka.sort();
+  kb.sort();
+
+  if (!iterableEqual(ka, kb)) {
+    return false;
+  }
+
+  m.push([ a, b ]);
+
+  var key;
+  for (i = ka.length - 1; i >= 0; i--) {
+    key = ka[i];
+    if (!deepEqual(a[key], b[key], m)) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+},{"buffer":undefined,"type-detect":33}],33:[function(require,module,exports){
+module.exports = require('./lib/type');
+
+},{"./lib/type":34}],34:[function(require,module,exports){
+/*!
+ * type-detect
+ * Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Primary Exports
+ */
+
+var exports = module.exports = getType;
+
+/*!
+ * Detectable javascript natives
+ */
+
+var natives = {
+    '[object Array]': 'array'
+  , '[object RegExp]': 'regexp'
+  , '[object Function]': 'function'
+  , '[object Arguments]': 'arguments'
+  , '[object Date]': 'date'
+};
+
+/**
+ * ### typeOf (obj)
+ *
+ * Use several different techniques to determine
+ * the type of object being tested.
+ *
+ *
+ * @param {Mixed} object
+ * @return {String} object type
+ * @api public
+ */
+
+function getType (obj) {
+  var str = Object.prototype.toString.call(obj);
+  if (natives[str]) return natives[str];
+  if (obj === null) return 'null';
+  if (obj === undefined) return 'undefined';
+  if (obj === Object(obj)) return 'object';
+  return typeof obj;
+}
+
+exports.Library = Library;
+
+/**
+ * ### Library
+ *
+ * Create a repository for custom type detection.
+ *
+ * ```js
+ * var lib = new type.Library;
+ * ```
+ *
+ */
+
+function Library () {
+  this.tests = {};
+}
+
+/**
+ * #### .of (obj)
+ *
+ * Expose replacement `typeof` detection to the library.
+ *
+ * ```js
+ * if ('string' === lib.of('hello world')) {
+ *   // ...
+ * }
+ * ```
+ *
+ * @param {Mixed} object to test
+ * @return {String} type
+ */
+
+Library.prototype.of = getType;
+
+/**
+ * #### .define (type, test)
+ *
+ * Add a test to for the `.test()` assertion.
+ *
+ * Can be defined as a regular expression:
+ *
+ * ```js
+ * lib.define('int', /^[0-9]+$/);
+ * ```
+ *
+ * ... or as a function:
+ *
+ * ```js
+ * lib.define('bln', function (obj) {
+ *   if ('boolean' === lib.of(obj)) return true;
+ *   var blns = [ 'yes', 'no', 'true', 'false', 1, 0 ];
+ *   if ('string' === lib.of(obj)) obj = obj.toLowerCase();
+ *   return !! ~blns.indexOf(obj);
+ * });
+ * ```
+ *
+ * @param {String} type
+ * @param {RegExp|Function} test
+ * @api public
+ */
+
+Library.prototype.define = function (type, test) {
+  if (arguments.length === 1) return this.tests[type];
+  this.tests[type] = test;
+  return this;
+};
+
+/**
+ * #### .test (obj, test)
+ *
+ * Assert that an object is of type. Will first
+ * check natives, and if that does not pass it will
+ * use the user defined custom tests.
+ *
+ * ```js
+ * assert(lib.test('1', 'int'));
+ * assert(lib.test('yes', 'bln'));
+ * ```
+ *
+ * @param {Mixed} object
+ * @param {String} type
+ * @return {Boolean} result
+ * @api public
+ */
+
+Library.prototype.test = function (obj, type) {
+  if (type === getType(obj)) return true;
+  var test = this.tests[type];
+
+  if (test && 'regexp' === getType(test)) {
+    return test.test(obj);
+  } else if (test && 'function' === getType(test)) {
+    return test(obj);
+  } else {
+    throw new ReferenceError('Type test "' + type + '" not defined or invalid.');
+  }
+};
+
+},{}],35:[function(require,module,exports){
+arguments[4][33][0].apply(exports,arguments)
+},{"./lib/type":36,"dup":33}],36:[function(require,module,exports){
+/*!
+ * type-detect
+ * Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Primary Exports
+ */
+
+var exports = module.exports = getType;
+
+/**
+ * ### typeOf (obj)
+ *
+ * Use several different techniques to determine
+ * the type of object being tested.
+ *
+ *
+ * @param {Mixed} object
+ * @return {String} object type
+ * @api public
+ */
+var objectTypeRegexp = /^\[object (.*)\]$/;
+
+function getType(obj) {
+  var type = Object.prototype.toString.call(obj).match(objectTypeRegexp)[1].toLowerCase();
+  // Let "new String('')" return 'object'
+  if (typeof Promise === 'function' && obj instanceof Promise) return 'promise';
+  // PhantomJS has type "DOMWindow" for null
+  if (obj === null) return 'null';
+  // PhantomJS has type "DOMWindow" for undefined
+  if (obj === undefined) return 'undefined';
+  return type;
+}
+
+exports.Library = Library;
+
+/**
+ * ### Library
+ *
+ * Create a repository for custom type detection.
+ *
+ * ```js
+ * var lib = new type.Library;
+ * ```
+ *
+ */
+
+function Library() {
+  if (!(this instanceof Library)) return new Library();
+  this.tests = {};
+}
+
+/**
+ * #### .of (obj)
+ *
+ * Expose replacement `typeof` detection to the library.
+ *
+ * ```js
+ * if ('string' === lib.of('hello world')) {
+ *   // ...
+ * }
+ * ```
+ *
+ * @param {Mixed} object to test
+ * @return {String} type
+ */
+
+Library.prototype.of = getType;
+
+/**
+ * #### .define (type, test)
+ *
+ * Add a test to for the `.test()` assertion.
+ *
+ * Can be defined as a regular expression:
+ *
+ * ```js
+ * lib.define('int', /^[0-9]+$/);
+ * ```
+ *
+ * ... or as a function:
+ *
+ * ```js
+ * lib.define('bln', function (obj) {
+ *   if ('boolean' === lib.of(obj)) return true;
+ *   var blns = [ 'yes', 'no', 'true', 'false', 1, 0 ];
+ *   if ('string' === lib.of(obj)) obj = obj.toLowerCase();
+ *   return !! ~blns.indexOf(obj);
+ * });
+ * ```
+ *
+ * @param {String} type
+ * @param {RegExp|Function} test
+ * @api public
+ */
+
+Library.prototype.define = function(type, test) {
+  if (arguments.length === 1) return this.tests[type];
+  this.tests[type] = test;
+  return this;
+};
+
+/**
+ * #### .test (obj, test)
+ *
+ * Assert that an object is of type. Will first
+ * check natives, and if that does not pass it will
+ * use the user defined custom tests.
+ *
+ * ```js
+ * assert(lib.test('1', 'int'));
+ * assert(lib.test('yes', 'bln'));
+ * ```
+ *
+ * @param {Mixed} object
+ * @param {String} type
+ * @return {Boolean} result
+ * @api public
+ */
+
+Library.prototype.test = function(obj, type) {
+  if (type === getType(obj)) return true;
+  var test = this.tests[type];
+
+  if (test && 'regexp' === getType(test)) {
+    return test.test(obj);
+  } else if (test && 'function' === getType(test)) {
+    return test(obj);
+  } else {
+    throw new ReferenceError('Type test "' + type + '" not defined or invalid.');
+  }
+};
+
+},{}]},{},[1])(1)
+});
diff --git a/test/vendor/expect.js b/test/vendor/expect.js
deleted file mode 100644
index b1e921d..0000000
--- a/test/vendor/expect.js
+++ /dev/null
@@ -1,1284 +0,0 @@
-(function (global, module) {
-
-  var exports = module.exports;
-
-  /**
-   * Exports.
-   */
-
-  module.exports = expect;
-  expect.Assertion = Assertion;
-
-  /**
-   * Exports version.
-   */
-
-  expect.version = '0.3.1';
-
-  /**
-   * Possible assertion flags.
-   */
-
-  var flags = {
-      not: ['to', 'be', 'have', 'include', 'only']
-    , to: ['be', 'have', 'include', 'only', 'not']
-    , only: ['have']
-    , have: ['own']
-    , be: ['an']
-  };
-
-  function expect (obj) {
-    return new Assertion(obj);
-  }
-
-  /**
-   * Constructor
-   *
-   * @api private
-   */
-
-  function Assertion (obj, flag, parent) {
-    this.obj = obj;
-    this.flags = {};
-
-    if (undefined != parent) {
-      this.flags[flag] = true;
-
-      for (var i in parent.flags) {
-        if (parent.flags.hasOwnProperty(i)) {
-          this.flags[i] = true;
-        }
-      }
-    }
-
-    var $flags = flag ? flags[flag] : keys(flags)
-      , self = this;
-
-    if ($flags) {
-      for (var i = 0, l = $flags.length; i < l; i++) {
-        // avoid recursion
-        if (this.flags[$flags[i]]) continue;
-
-        var name = $flags[i]
-          , assertion = new Assertion(this.obj, name, this)
-
-        if ('function' == typeof Assertion.prototype[name]) {
-          // clone the function, make sure we dont touch the prot reference
-          var old = this[name];
-          this[name] = function () {
-            return old.apply(self, arguments);
-          };
-
-          for (var fn in Assertion.prototype) {
-            if (Assertion.prototype.hasOwnProperty(fn) && fn != name) {
-              this[name][fn] = bind(assertion[fn], assertion);
-            }
-          }
-        } else {
-          this[name] = assertion;
-        }
-      }
-    }
-  }
-
-  /**
-   * Performs an assertion
-   *
-   * @api private
-   */
-
-  Assertion.prototype.assert = function (truth, msg, error, expected) {
-    var msg = this.flags.not ? error : msg
-      , ok = this.flags.not ? !truth : truth
-      , err;
-
-    if (!ok) {
-      err = new Error(msg.call(this));
-      if (arguments.length > 3) {
-        err.actual = this.obj;
-        err.expected = expected;
-        err.showDiff = true;
-      }
-      throw err;
-    }
-
-    this.and = new Assertion(this.obj);
-  };
-
-  /**
-   * Check if the value is truthy
-   *
-   * @api public
-   */
-
-  Assertion.prototype.ok = function () {
-    this.assert(
-        !!this.obj
-      , function(){ return 'expected ' + i(this.obj) + ' to be truthy' }
-      , function(){ return 'expected ' + i(this.obj) + ' to be falsy' });
-  };
-
-  /**
-   * Creates an anonymous function which calls fn with arguments.
-   *
-   * @api public
-   */
-
-  Assertion.prototype.withArgs = function() {
-    expect(this.obj).to.be.a('function');
-    var fn = this.obj;
-    var args = Array.prototype.slice.call(arguments);
-    return expect(function() { fn.apply(null, args); });
-  };
-
-  /**
-   * Assert that the function throws.
-   *
-   * @param {Function|RegExp} callback, or regexp to match error string against
-   * @api public
-   */
-
-  Assertion.prototype.throwError =
-  Assertion.prototype.throwException = function (fn) {
-    expect(this.obj).to.be.a('function');
-
-    var thrown = false
-      , not = this.flags.not;
-
-    try {
-      this.obj();
-    } catch (e) {
-      if (isRegExp(fn)) {
-        var subject = 'string' == typeof e ? e : e.message;
-        if (not) {
-          expect(subject).to.not.match(fn);
-        } else {
-          expect(subject).to.match(fn);
-        }
-      } else if ('function' == typeof fn) {
-        fn(e);
-      }
-      thrown = true;
-    }
-
-    if (isRegExp(fn) && not) {
-      // in the presence of a matcher, ensure the `not` only applies to
-      // the matching.
-      this.flags.not = false;
-    }
-
-    var name = this.obj.name || 'fn';
-    this.assert(
-        thrown
-      , function(){ return 'expected ' + name + ' to throw an exception' }
-      , function(){ return 'expected ' + name + ' not to throw an exception' });
-  };
-
-  /**
-   * Checks if the array is empty.
-   *
-   * @api public
-   */
-
-  Assertion.prototype.empty = function () {
-    var expectation;
-
-    if ('object' == typeof this.obj && null !== this.obj && !isArray(this.obj)) {
-      if ('number' == typeof this.obj.length) {
-        expectation = !this.obj.length;
-      } else {
-        expectation = !keys(this.obj).length;
-      }
-    } else {
-      if ('string' != typeof this.obj) {
-        expect(this.obj).to.be.an('object');
-      }
-
-      expect(this.obj).to.have.property('length');
-      expectation = !this.obj.length;
-    }
-
-    this.assert(
-        expectation
-      , function(){ return 'expected ' + i(this.obj) + ' to be empty' }
-      , function(){ return 'expected ' + i(this.obj) + ' to not be empty' });
-    return this;
-  };
-
-  /**
-   * Checks if the obj exactly equals another.
-   *
-   * @api public
-   */
-
-  Assertion.prototype.be =
-  Assertion.prototype.equal = function (obj) {
-    this.assert(
-        obj === this.obj
-      , function(){ return 'expected ' + i(this.obj) + ' to equal ' + i(obj) }
-      , function(){ return 'expected ' + i(this.obj) + ' to not equal ' + i(obj) });
-    return this;
-  };
-
-  /**
-   * Checks if the obj sortof equals another.
-   *
-   * @api public
-   */
-
-  Assertion.prototype.eql = function (obj) {
-    this.assert(
-        expect.eql(this.obj, obj)
-      , function(){ return 'expected ' + i(this.obj) + ' to sort of equal ' + i(obj) }
-      , function(){ return 'expected ' + i(this.obj) + ' to sort of not equal ' + i(obj) }
-      , obj);
-    return this;
-  };
-
-  /**
-   * Assert within start to finish (inclusive).
-   *
-   * @param {Number} start
-   * @param {Number} finish
-   * @api public
-   */
-
-  Assertion.prototype.within = function (start, finish) {
-    var range = start + '..' + finish;
-    this.assert(
-        this.obj >= start && this.obj <= finish
-      , function(){ return 'expected ' + i(this.obj) + ' to be within ' + range }
-      , function(){ return 'expected ' + i(this.obj) + ' to not be within ' + range });
-    return this;
-  };
-
-  /**
-   * Assert typeof / instance of
-   *
-   * @api public
-   */
-
-  Assertion.prototype.a =
-  Assertion.prototype.an = function (type) {
-    if ('string' == typeof type) {
-      // proper english in error msg
-      var n = /^[aeiou]/.test(type) ? 'n' : '';
-
-      // typeof with support for 'array'
-      this.assert(
-          'array' == type ? isArray(this.obj) :
-            'regexp' == type ? isRegExp(this.obj) :
-              'object' == type
-                ? 'object' == typeof this.obj && null !== this.obj
-                : type == typeof this.obj
-        , function(){ return 'expected ' + i(this.obj) + ' to be a' + n + ' ' + type }
-        , function(){ return 'expected ' + i(this.obj) + ' not to be a' + n + ' ' + type });
-    } else {
-      // instanceof
-      var name = type.name || 'supplied constructor';
-      this.assert(
-          this.obj instanceof type
-        , function(){ return 'expected ' + i(this.obj) + ' to be an instance of ' + name }
-        , function(){ return 'expected ' + i(this.obj) + ' not to be an instance of ' + name });
-    }
-
-    return this;
-  };
-
-  /**
-   * Assert numeric value above _n_.
-   *
-   * @param {Number} n
-   * @api public
-   */
-
-  Assertion.prototype.greaterThan =
-  Assertion.prototype.above = function (n) {
-    this.assert(
-        this.obj > n
-      , function(){ return 'expected ' + i(this.obj) + ' to be above ' + n }
-      , function(){ return 'expected ' + i(this.obj) + ' to be below ' + n });
-    return this;
-  };
-
-  /**
-   * Assert numeric value below _n_.
-   *
-   * @param {Number} n
-   * @api public
-   */
-
-  Assertion.prototype.lessThan =
-  Assertion.prototype.below = function (n) {
-    this.assert(
-        this.obj < n
-      , function(){ return 'expected ' + i(this.obj) + ' to be below ' + n }
-      , function(){ return 'expected ' + i(this.obj) + ' to be above ' + n });
-    return this;
-  };
-
-  /**
-   * Assert string value matches _regexp_.
-   *
-   * @param {RegExp} regexp
-   * @api public
-   */
-
-  Assertion.prototype.match = function (regexp) {
-    this.assert(
-        regexp.exec(this.obj)
-      , function(){ return 'expected ' + i(this.obj) + ' to match ' + regexp }
-      , function(){ return 'expected ' + i(this.obj) + ' not to match ' + regexp });
-    return this;
-  };
-
-  /**
-   * Assert property "length" exists and has value of _n_.
-   *
-   * @param {Number} n
-   * @api public
-   */
-
-  Assertion.prototype.length = function (n) {
-    expect(this.obj).to.have.property('length');
-    var len = this.obj.length;
-    this.assert(
-        n == len
-      , function(){ return 'expected ' + i(this.obj) + ' to have a length of ' + n + ' but got ' + len }
-      , function(){ return 'expected ' + i(this.obj) + ' to not have a length of ' + len });
-    return this;
-  };
-
-  /**
-   * Assert property _name_ exists, with optional _val_.
-   *
-   * @param {String} name
-   * @param {Mixed} val
-   * @api public
-   */
-
-  Assertion.prototype.property = function (name, val) {
-    if (this.flags.own) {
-      this.assert(
-          Object.prototype.hasOwnProperty.call(this.obj, name)
-        , function(){ return 'expected ' + i(this.obj) + ' to have own property ' + i(name) }
-        , function(){ return 'expected ' + i(this.obj) + ' to not have own property ' + i(name) });
-      return this;
-    }
-
-    if (this.flags.not && undefined !== val) {
-      if (undefined === this.obj[name]) {
-        throw new Error(i(this.obj) + ' has no property ' + i(name));
-      }
-    } else {
-      var hasProp;
-      try {
-        hasProp = name in this.obj
-      } catch (e) {
-        hasProp = undefined !== this.obj[name]
-      }
-
-      this.assert(
-          hasProp
-        , function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name) }
-        , function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name) });
-    }
-
-    if (undefined !== val) {
-      this.assert(
-          val === this.obj[name]
-        , function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name)
-          + ' of ' + i(val) + ', but got ' + i(this.obj[name]) }
-        , function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name)
-          + ' of ' + i(val) });
-    }
-
-    this.obj = this.obj[name];
-    return this;
-  };
-
-  /**
-   * Assert that the array contains _obj_ or string contains _obj_.
-   *
-   * @param {Mixed} obj|string
-   * @api public
-   */
-
-  Assertion.prototype.string =
-  Assertion.prototype.contain = function (obj) {
-    if ('string' == typeof this.obj) {
-      this.assert(
-          ~this.obj.indexOf(obj)
-        , function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
-        , function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
-    } else {
-      this.assert(
-          ~indexOf(this.obj, obj)
-        , function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
-        , function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
-    }
-    return this;
-  };
-
-  /**
-   * Assert exact keys or inclusion of keys by using
-   * the `.own` modifier.
-   *
-   * @param {Array|String ...} keys
-   * @api public
-   */
-
-  Assertion.prototype.key =
-  Assertion.prototype.keys = function ($keys) {
-    var str
-      , ok = true;
-
-    $keys = isArray($keys)
-      ? $keys
-      : Array.prototype.slice.call(arguments);
-
-    if (!$keys.length) throw new Error('keys required');
-
-    var actual = keys(this.obj)
-      , len = $keys.length;
-
-    // Inclusion
-    ok = every($keys, function (key) {
-      return ~indexOf(actual, key);
-    });
-
-    // Strict
-    if (!this.flags.not && this.flags.only) {
-      ok = ok && $keys.length == actual.length;
-    }
-
-    // Key string
-    if (len > 1) {
-      $keys = map($keys, function (key) {
-        return i(key);
-      });
-      var last = $keys.pop();
-      str = $keys.join(', ') + ', and ' + last;
-    } else {
-      str = i($keys[0]);
-    }
-
-    // Form
-    str = (len > 1 ? 'keys ' : 'key ') + str;
-
-    // Have / include
-    str = (!this.flags.only ? 'include ' : 'only have ') + str;
-
-    // Assertion
-    this.assert(
-        ok
-      , function(){ return 'expected ' + i(this.obj) + ' to ' + str }
-      , function(){ return 'expected ' + i(this.obj) + ' to not ' + str });
-
-    return this;
-  };
-
-  /**
-   * Assert a failure.
-   *
-   * @param {String ...} custom message
-   * @api public
-   */
-  Assertion.prototype.fail = function (msg) {
-    var error = function() { return msg || "explicit failure"; }
-    this.assert(false, error, error);
-    return this;
-  };
-
-  /**
-   * Function bind implementation.
-   */
-
-  function bind (fn, scope) {
-    return function () {
-      return fn.apply(scope, arguments);
-    }
-  }
-
-  /**
-   * Array every compatibility
-   *
-   * @see bit.ly/5Fq1N2
-   * @api public
-   */
-
-  function every (arr, fn, thisObj) {
-    var scope = thisObj || global;
-    for (var i = 0, j = arr.length; i < j; ++i) {
-      if (!fn.call(scope, arr[i], i, arr)) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  /**
-   * Array indexOf compatibility.
-   *
-   * @see bit.ly/a5Dxa2
-   * @api public
-   */
-
-  function indexOf (arr, o, i) {
-    if (Array.prototype.indexOf) {
-      return Array.prototype.indexOf.call(arr, o, i);
-    }
-
-    if (arr.length === undefined) {
-      return -1;
-    }
-
-    for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0
-        ; i < j && arr[i] !== o; i++);
-
-    return j <= i ? -1 : i;
-  }
-
-  // https://gist.github.com/1044128/
-  var getOuterHTML = function(element) {
-    if ('outerHTML' in element) return element.outerHTML;
-    var ns = "http://www.w3.org/1999/xhtml";
-    var container = document.createElementNS(ns, '_');
-    var xmlSerializer = new XMLSerializer();
-    var html;
-    if (document.xmlVersion) {
-      return xmlSerializer.serializeToString(element);
-    } else {
-      container.appendChild(element.cloneNode(false));
-      html = container.innerHTML.replace('><', '>' + element.innerHTML + '<');
-      container.innerHTML = '';
-      return html;
-    }
-  };
-
-  // Returns true if object is a DOM element.
-  var isDOMElement = function (object) {
-    if (typeof HTMLElement === 'object') {
-      return object instanceof HTMLElement;
-    } else {
-      return object &&
-        typeof object === 'object' &&
-        object.nodeType === 1 &&
-        typeof object.nodeName === 'string';
-    }
-  };
-
-  /**
-   * Inspects an object.
-   *
-   * @see taken from node.js `util` module (copyright Joyent, MIT license)
-   * @api private
-   */
-
-  function i (obj, showHidden, depth) {
-    var seen = [];
-
-    function stylize (str) {
-      return str;
-    }
-
-    function format (value, recurseTimes) {
-      // Provide a hook for user-specified inspect functions.
-      // Check that value is an object with an inspect function on it
-      if (value && typeof value.inspect === 'function' &&
-          // Filter out the util module, it's inspect function is special
-          value !== exports &&
-          // Also filter out any prototype objects using the circular check.
-          !(value.constructor && value.constructor.prototype === value)) {
-        return value.inspect(recurseTimes);
-      }
-
-      // Primitive types cannot have properties
-      switch (typeof value) {
-        case 'undefined':
-          return stylize('undefined', 'undefined');
-
-        case 'string':
-          var simple = '\'' + json.stringify(value).replace(/^"|"$/g, '')
-                                                   .replace(/'/g, "\\'")
-                                                   .replace(/\\"/g, '"') + '\'';
-          return stylize(simple, 'string');
-
-        case 'number':
-          return stylize('' + value, 'number');
-
-        case 'boolean':
-          return stylize('' + value, 'boolean');
-      }
-      // For some reason typeof null is "object", so special case here.
-      if (value === null) {
-        return stylize('null', 'null');
-      }
-
-      if (isDOMElement(value)) {
-        return getOuterHTML(value);
-      }
-
-      // Look up the keys of the object.
-      var visible_keys = keys(value);
-      var $keys = showHidden ? Object.getOwnPropertyNames(value) : visible_keys;
-
-      // Functions without properties can be shortcutted.
-      if (typeof value === 'function' && $keys.length === 0) {
-        if (isRegExp(value)) {
-          return stylize('' + value, 'regexp');
-        } else {
-          var name = value.name ? ': ' + value.name : '';
-          return stylize('[Function' + name + ']', 'special');
-        }
-      }
-
-      // Dates without properties can be shortcutted
-      if (isDate(value) && $keys.length === 0) {
-        return stylize(value.toUTCString(), 'date');
-      }
-      
-      // Error objects can be shortcutted
-      if (value instanceof Error) {
-        return stylize("["+value.toString()+"]", 'Error');
-      }
-
-      var base, type, braces;
-      // Determine the object type
-      if (isArray(value)) {
-        type = 'Array';
-        braces = ['[', ']'];
-      } else {
-        type = 'Object';
-        braces = ['{', '}'];
-      }
-
-      // Make functions say that they are functions
-      if (typeof value === 'function') {
-        var n = value.name ? ': ' + value.name : '';
-        base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
-      } else {
-        base = '';
-      }
-
-      // Make dates with properties first say the date
-      if (isDate(value)) {
-        base = ' ' + value.toUTCString();
-      }
-
-      if ($keys.length === 0) {
-        return braces[0] + base + braces[1];
-      }
-
-      if (recurseTimes < 0) {
-        if (isRegExp(value)) {
-          return stylize('' + value, 'regexp');
-        } else {
-          return stylize('[Object]', 'special');
-        }
-      }
-
-      seen.push(value);
-
-      var output = map($keys, function (key) {
-        var name, str;
-        if (value.__lookupGetter__) {
-          if (value.__lookupGetter__(key)) {
-            if (value.__lookupSetter__(key)) {
-              str = stylize('[Getter/Setter]', 'special');
-            } else {
-              str = stylize('[Getter]', 'special');
-            }
-          } else {
-            if (value.__lookupSetter__(key)) {
-              str = stylize('[Setter]', 'special');
-            }
-          }
-        }
-        if (indexOf(visible_keys, key) < 0) {
-          name = '[' + key + ']';
-        }
-        if (!str) {
-          if (indexOf(seen, value[key]) < 0) {
-            if (recurseTimes === null) {
-              str = format(value[key]);
-            } else {
-              str = format(value[key], recurseTimes - 1);
-            }
-            if (str.indexOf('\n') > -1) {
-              if (isArray(value)) {
-                str = map(str.split('\n'), function (line) {
-                  return '  ' + line;
-                }).join('\n').substr(2);
-              } else {
-                str = '\n' + map(str.split('\n'), function (line) {
-                  return '   ' + line;
-                }).join('\n');
-              }
-            }
-          } else {
-            str = stylize('[Circular]', 'special');
-          }
-        }
-        if (typeof name === 'undefined') {
-          if (type === 'Array' && key.match(/^\d+$/)) {
-            return str;
-          }
-          name = json.stringify('' + key);
-          if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
-            name = name.substr(1, name.length - 2);
-            name = stylize(name, 'name');
-          } else {
-            name = name.replace(/'/g, "\\'")
-                       .replace(/\\"/g, '"')
-                       .replace(/(^"|"$)/g, "'");
-            name = stylize(name, 'string');
-          }
-        }
-
-        return name + ': ' + str;
-      });
-
-      seen.pop();
-
-      var numLinesEst = 0;
-      var length = reduce(output, function (prev, cur) {
-        numLinesEst++;
-        if (indexOf(cur, '\n') >= 0) numLinesEst++;
-        return prev + cur.length + 1;
-      }, 0);
-
-      if (length > 50) {
-        output = braces[0] +
-                 (base === '' ? '' : base + '\n ') +
-                 ' ' +
-                 output.join(',\n  ') +
-                 ' ' +
-                 braces[1];
-
-      } else {
-        output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
-      }
-
-      return output;
-    }
-    return format(obj, (typeof depth === 'undefined' ? 2 : depth));
-  }
-
-  expect.stringify = i;
-
-  function isArray (ar) {
-    return Object.prototype.toString.call(ar) === '[object Array]';
-  }
-
-  function isRegExp(re) {
-    var s;
-    try {
-      s = '' + re;
-    } catch (e) {
-      return false;
-    }
-
-    return re instanceof RegExp || // easy case
-           // duck-type for context-switching evalcx case
-           typeof(re) === 'function' &&
-           re.constructor.name === 'RegExp' &&
-           re.compile &&
-           re.test &&
-           re.exec &&
-           s.match(/^\/.*\/[gim]{0,3}$/);
-  }
-
-  function isDate(d) {
-    return d instanceof Date;
-  }
-
-  function keys (obj) {
-    if (Object.keys) {
-      return Object.keys(obj);
-    }
-
-    var keys = [];
-
-    for (var i in obj) {
-      if (Object.prototype.hasOwnProperty.call(obj, i)) {
-        keys.push(i);
-      }
-    }
-
-    return keys;
-  }
-
-  function map (arr, mapper, that) {
-    if (Array.prototype.map) {
-      return Array.prototype.map.call(arr, mapper, that);
-    }
-
-    var other= new Array(arr.length);
-
-    for (var i= 0, n = arr.length; i<n; i++)
-      if (i in arr)
-        other[i] = mapper.call(that, arr[i], i, arr);
-
-    return other;
-  }
-
-  function reduce (arr, fun) {
-    if (Array.prototype.reduce) {
-      return Array.prototype.reduce.apply(
-          arr
-        , Array.prototype.slice.call(arguments, 1)
-      );
-    }
-
-    var len = +this.length;
-
-    if (typeof fun !== "function")
-      throw new TypeError();
-
-    // no value to return if no initial value and an empty array
-    if (len === 0 && arguments.length === 1)
-      throw new TypeError();
-
-    var i = 0;
-    if (arguments.length >= 2) {
-      var rv = arguments[1];
-    } else {
-      do {
-        if (i in this) {
-          rv = this[i++];
-          break;
-        }
-
-        // if array contains no values, no initial value to return
-        if (++i >= len)
-          throw new TypeError();
-      } while (true);
-    }
-
-    for (; i < len; i++) {
-      if (i in this)
-        rv = fun.call(null, rv, this[i], i, this);
-    }
-
-    return rv;
-  }
-
-  /**
-   * Asserts deep equality
-   *
-   * @see taken from node.js `assert` module (copyright Joyent, MIT license)
-   * @api private
-   */
-
-  expect.eql = function eql(actual, expected) {
-    // 7.1. All identical values are equivalent, as determined by ===.
-    if (actual === expected) {
-      return true;
-    } else if ('undefined' != typeof Buffer
-      && Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
-      if (actual.length != expected.length) return false;
-
-      for (var i = 0; i < actual.length; i++) {
-        if (actual[i] !== expected[i]) return false;
-      }
-
-      return true;
-
-      // 7.2. If the expected value is a Date object, the actual value is
-      // equivalent if it is also a Date object that refers to the same time.
-    } else if (actual instanceof Date && expected instanceof Date) {
-      return actual.getTime() === expected.getTime();
-
-      // 7.3. Other pairs that do not both pass typeof value == "object",
-      // equivalence is determined by ==.
-    } else if (typeof actual != 'object' && typeof expected != 'object') {
-      return actual == expected;
-    // If both are regular expression use the special `regExpEquiv` method
-    // to determine equivalence.
-    } else if (isRegExp(actual) && isRegExp(expected)) {
-      return regExpEquiv(actual, expected);
-    // 7.4. For all other Object pairs, including Array objects, equivalence is
-    // determined by having the same number of owned properties (as verified
-    // with Object.prototype.hasOwnProperty.call), the same set of keys
-    // (although not necessarily the same order), equivalent values for every
-    // corresponding key, and an identical "prototype" property. Note: this
-    // accounts for both named and indexed properties on Arrays.
-    } else {
-      return objEquiv(actual, expected);
-    }
-  };
-
-  function isUndefinedOrNull (value) {
-    return value === null || value === undefined;
-  }
-
-  function isArguments (object) {
-    return Object.prototype.toString.call(object) == '[object Arguments]';
-  }
-
-  function regExpEquiv (a, b) {
-    return a.source === b.source && a.global === b.global &&
-           a.ignoreCase === b.ignoreCase && a.multiline === b.multiline;
-  }
-
-  function objEquiv (a, b) {
-    if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
-      return false;
-    // an identical "prototype" property.
-    if (a.prototype !== b.prototype) return false;
-    //~~~I've managed to break Object.keys through screwy arguments passing.
-    //   Converting to array solves the problem.
-    if (isArguments(a)) {
-      if (!isArguments(b)) {
-        return false;
-      }
-      a = pSlice.call(a);
-      b = pSlice.call(b);
-      return expect.eql(a, b);
-    }
-    try{
-      var ka = keys(a),
-        kb = keys(b),
-        key, i;
-    } catch (e) {//happens when one is a string literal and the other isn't
-      return false;
-    }
-    // having the same number of owned properties (keys incorporates hasOwnProperty)
-    if (ka.length != kb.length)
-      return false;
-    //the same set of keys (although not necessarily the same order),
-    ka.sort();
-    kb.sort();
-    //~~~cheap key test
-    for (i = ka.length - 1; i >= 0; i--) {
-      if (ka[i] != kb[i])
-        return false;
-    }
-    //equivalent values for every corresponding key, and
-    //~~~possibly expensive deep test
-    for (i = ka.length - 1; i >= 0; i--) {
-      key = ka[i];
-      if (!expect.eql(a[key], b[key]))
-         return false;
-    }
-    return true;
-  }
-
-  var json = (function () {
-    "use strict";
-
-    if ('object' == typeof JSON && JSON.parse && JSON.stringify) {
-      return {
-          parse: nativeJSON.parse
-        , stringify: nativeJSON.stringify
-      }
-    }
-
-    var JSON = {};
-
-    function f(n) {
-        // Format integers to have at least two digits.
-        return n < 10 ? '0' + n : n;
-    }
-
-    function date(d, key) {
-      return isFinite(d.valueOf()) ?
-          d.getUTCFullYear()     + '-' +
-          f(d.getUTCMonth() + 1) + '-' +
-          f(d.getUTCDate())      + 'T' +
-          f(d.getUTCHours())     + ':' +
-          f(d.getUTCMinutes())   + ':' +
-          f(d.getUTCSeconds())   + 'Z' : null;
-    }
-
-    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
-        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
-        gap,
-        indent,
-        meta = {    // table of character substitutions
-            '\b': '\\b',
-            '\t': '\\t',
-            '\n': '\\n',
-            '\f': '\\f',
-            '\r': '\\r',
-            '"' : '\\"',
-            '\\': '\\\\'
-        },
-        rep;
-
-
-    function quote(string) {
-
-  // If the string contains no control characters, no quote characters, and no
-  // backslash characters, then we can safely slap some quotes around it.
-  // Otherwise we must also replace the offending characters with safe escape
-  // sequences.
-
-        escapable.lastIndex = 0;
-        return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
-            var c = meta[a];
-            return typeof c === 'string' ? c :
-                '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
-        }) + '"' : '"' + string + '"';
-    }
-
-
-    function str(key, holder) {
-
-  // Produce a string from holder[key].
-
-        var i,          // The loop counter.
-            k,          // The member key.
-            v,          // The member value.
-            length,
-            mind = gap,
-            partial,
-            value = holder[key];
-
-  // If the value has a toJSON method, call it to obtain a replacement value.
-
-        if (value instanceof Date) {
-            value = date(key);
-        }
-
-  // If we were called with a replacer function, then call the replacer to
-  // obtain a replacement value.
-
-        if (typeof rep === 'function') {
-            value = rep.call(holder, key, value);
-        }
-
-  // What happens next depends on the value's type.
-
-        switch (typeof value) {
-        case 'string':
-            return quote(value);
-
-        case 'number':
-
-  // JSON numbers must be finite. Encode non-finite numbers as null.
-
-            return isFinite(value) ? String(value) : 'null';
-
-        case 'boolean':
-        case 'null':
-
-  // If the value is a boolean or null, convert it to a string. Note:
-  // typeof null does not produce 'null'. The case is included here in
-  // the remote chance that this gets fixed someday.
-
-            return String(value);
-
-  // If the type is 'object', we might be dealing with an object or an array or
-  // null.
-
-        case 'object':
-
-  // Due to a specification blunder in ECMAScript, typeof null is 'object',
-  // so watch out for that case.
-
-            if (!value) {
-                return 'null';
-            }
-
-  // Make an array to hold the partial results of stringifying this object value.
-
-            gap += indent;
-            partial = [];
-
-  // Is the value an array?
-
-            if (Object.prototype.toString.apply(value) === '[object Array]') {
-
-  // The value is an array. Stringify every element. Use null as a placeholder
-  // for non-JSON values.
-
-                length = value.length;
-                for (i = 0; i < length; i += 1) {
-                    partial[i] = str(i, value) || 'null';
-                }
-
-  // Join all of the elements together, separated with commas, and wrap them in
-  // brackets.
-
-                v = partial.length === 0 ? '[]' : gap ?
-                    '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
-                    '[' + partial.join(',') + ']';
-                gap = mind;
-                return v;
-            }
-
-  // If the replacer is an array, use it to select the members to be stringified.
-
-            if (rep && typeof rep === 'object') {
-                length = rep.length;
-                for (i = 0; i < length; i += 1) {
-                    if (typeof rep[i] === 'string') {
-                        k = rep[i];
-                        v = str(k, value);
-                        if (v) {
-                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
-                        }
-                    }
-                }
-            } else {
-
-  // Otherwise, iterate through all of the keys in the object.
-
-                for (k in value) {
-                    if (Object.prototype.hasOwnProperty.call(value, k)) {
-                        v = str(k, value);
-                        if (v) {
-                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
-                        }
-                    }
-                }
-            }
-
-  // Join all of the member texts together, separated with commas,
-  // and wrap them in braces.
-
-            v = partial.length === 0 ? '{}' : gap ?
-                '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
-                '{' + partial.join(',') + '}';
-            gap = mind;
-            return v;
-        }
-    }
-
-  // If the JSON object does not yet have a stringify method, give it one.
-
-    JSON.stringify = function (value, replacer, space) {
-
-  // The stringify method takes a value and an optional replacer, and an optional
-  // space parameter, and returns a JSON text. The replacer can be a function
-  // that can replace values, or an array of strings that will select the keys.
-  // A default replacer method can be provided. Use of the space parameter can
-  // produce text that is more easily readable.
-
-        var i;
-        gap = '';
-        indent = '';
-
-  // If the space parameter is a number, make an indent string containing that
-  // many spaces.
-
-        if (typeof space === 'number') {
-            for (i = 0; i < space; i += 1) {
-                indent += ' ';
-            }
-
-  // If the space parameter is a string, it will be used as the indent string.
-
-        } else if (typeof space === 'string') {
-            indent = space;
-        }
-
-  // If there is a replacer, it must be a function or an array.
-  // Otherwise, throw an error.
-
-        rep = replacer;
-        if (replacer && typeof replacer !== 'function' &&
-                (typeof replacer !== 'object' ||
-                typeof replacer.length !== 'number')) {
-            throw new Error('JSON.stringify');
-        }
-
-  // Make a fake root object containing our value under the key of ''.
-  // Return the result of stringifying the value.
-
-        return str('', {'': value});
-    };
-
-  // If the JSON object does not yet have a parse method, give it one.
-
-    JSON.parse = function (text, reviver) {
-    // The parse method takes a text and an optional reviver function, and returns
-    // a JavaScript value if the text is a valid JSON text.
-
-        var j;
-
-        function walk(holder, key) {
-
-    // The walk method is used to recursively walk the resulting structure so
-    // that modifications can be made.
-
-            var k, v, value = holder[key];
-            if (value && typeof value === 'object') {
-                for (k in value) {
-                    if (Object.prototype.hasOwnProperty.call(value, k)) {
-                        v = walk(value, k);
-                        if (v !== undefined) {
-                            value[k] = v;
-                        } else {
-                            delete value[k];
-                        }
-                    }
-                }
-            }
-            return reviver.call(holder, key, value);
-        }
-
-
-    // Parsing happens in four stages. In the first stage, we replace certain
-    // Unicode characters with escape sequences. JavaScript handles many characters
-    // incorrectly, either silently deleting them, or treating them as line endings.
-
-        text = String(text);
-        cx.lastIndex = 0;
-        if (cx.test(text)) {
-            text = text.replace(cx, function (a) {
-                return '\\u' +
-                    ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
-            });
-        }
-
-    // In the second stage, we run the text against regular expressions that look
-    // for non-JSON patterns. We are especially concerned with '()' and 'new'
-    // because they can cause invocation, and '=' because it can cause mutation.
-    // But just to be safe, we want to reject all unexpected forms.
-
-    // We split the second stage into 4 regexp operations in order to work around
-    // crippling inefficiencies in IE's and Safari's regexp engines. First we
-    // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
-    // replace all simple value tokens with ']' characters. Third, we delete all
-    // open brackets that follow a colon or comma or that begin the text. Finally,
-    // we look to see that the remaining characters are only whitespace or ']' or
-    // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
-
-        if (/^[\],:{}\s]*$/
-                .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
-                    .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
-                    .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
-
-    // In the third stage we use the eval function to compile the text into a
-    // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
-    // in JavaScript: it can begin a block or an object literal. We wrap the text
-    // in parens to eliminate the ambiguity.
-
-            j = eval('(' + text + ')');
-
-    // In the optional fourth stage, we recursively walk the new structure, passing
-    // each name/value pair to a reviver function for possible transformation.
-
-            return typeof reviver === 'function' ?
-                walk({'': j}, '') : j;
-        }
-
-    // If the text is not JSON parseable, then a SyntaxError is thrown.
-
-        throw new SyntaxError('JSON.parse');
-    };
-
-    return JSON;
-  })();
-
-  if ('undefined' != typeof window) {
-    window.expect = module.exports;
-  }
-
-})(
-    this
-  , 'undefined' != typeof module ? module : {exports: {}}
-);

From 4ff69f17a93ff04f827ad651d598bdeb7ce5aa4d Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 8 Oct 2016 21:35:24 +0200
Subject: [PATCH 04/85] 3.4.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 7af92fd..c93906a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.3.0",
+  "version": "3.4.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From aa1bd709ef341cb647bc27d5d4bd40719270a841 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 2 Nov 2016 22:55:10 +0100
Subject: [PATCH 05/85] Add .npmignore.

---
 .npmignore | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 .npmignore

diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..0dffc77
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,2 @@
+*
+!js/canvas-to-blob.js

From 47fb9a775b079e54a3e08be35a988dfaafae5f77 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 2 Nov 2016 22:55:32 +0100
Subject: [PATCH 06/85] 3.5.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index c93906a..f15fd27 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.4.0",
+  "version": "3.5.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 34ea67d86589785e42c1cb116795ba926fe96418 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 25 Nov 2016 12:54:46 +0100
Subject: [PATCH 07/85] Also include the minified version in the npm package.

---
 .npmignore | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.npmignore b/.npmignore
index 0dffc77..a508bcb 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,2 +1,3 @@
 *
-!js/canvas-to-blob.js
+!js/*.js
+!js/*.js.map

From 39b96c11e60bd6be833866b1b5d92994fce1718c Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 25 Nov 2016 12:55:07 +0100
Subject: [PATCH 08/85] 3.6.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index f15fd27..8715860 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.5.0",
+  "version": "3.6.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 44ba490c7fa79155714b04764e7a90c319e8d9a3 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 17 Feb 2017 17:09:16 +0100
Subject: [PATCH 09/85] Update load-image library.

---
 test/vendor/load-image.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index e7fe73c..c5dcd31 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -6,7 +6,7 @@
  * https://blueimp.net
  *
  * Licensed under the MIT license:
- * http://www.opensource.org/licenses/MIT
+ * https://opensource.org/licenses/MIT
  */
 
 /* global define, URL, webkitURL, FileReader */
@@ -285,6 +285,8 @@
             canvas.width,
             canvas.height
           )
+          sourceX = 0
+          sourceY = 0
           sourceWidth = canvas.width
           sourceHeight = canvas.height
           img = document.createElement('canvas')

From 0b7295bb797ee82e603f0049b90e4ef34f8ec94a Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 17 Feb 2017 17:09:31 +0100
Subject: [PATCH 10/85] Update license URL.

---
 README.md            | 2 +-
 js/canvas-to-blob.js | 2 +-
 test/index.html      | 2 +-
 test/test.js         | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index b6af2c2..0377b9c 100644
--- a/README.md
+++ b/README.md
@@ -81,4 +81,4 @@ The following browsers support either the native or the polyfill
 
 ## License
 The JavaScript Canvas to Blob script is released under the
-[MIT license](http://www.opensource.org/licenses/MIT).
+[MIT license](https://opensource.org/licenses/MIT).
diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index 3291366..c46480d 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -6,7 +6,7 @@
  * https://blueimp.net
  *
  * Licensed under the MIT license:
- * http://www.opensource.org/licenses/MIT
+ * https://opensource.org/licenses/MIT
  *
  * Based on stackoverflow user Stoive's code snippet:
  * http://stackoverflow.com/q/4998908
diff --git a/test/index.html b/test/index.html
index 9839390..ca5eee6 100644
--- a/test/index.html
+++ b/test/index.html
@@ -8,7 +8,7 @@
  * https://blueimp.net
  *
  * Licensed under the MIT license:
- * http://www.opensource.org/licenses/MIT
+ * https://opensource.org/licenses/MIT
  */
 -->
 <html lang="en">
diff --git a/test/test.js b/test/test.js
index 9a81db0..e4d9138 100644
--- a/test/test.js
+++ b/test/test.js
@@ -6,7 +6,7 @@
  * https://blueimp.net
  *
  * Licensed under the MIT license:
- * http://www.opensource.org/licenses/MIT
+ * https://opensource.org/licenses/MIT
  */
 
 /* global describe, it, Blob */

From 10f6200baea6c7818f898a182760690d6d2c1cde Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 17 Feb 2017 17:09:49 +0100
Subject: [PATCH 11/85] 3.7.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8715860..e5c5e79 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.6.0",
+  "version": "3.7.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 12f58ae890f6ab5aa95b7ff9cba9e9e935ea7607 Mon Sep 17 00:00:00 2001
From: Adrien Girardeau <adrien.girardeau@dalim.com>
Date: Mon, 12 Jun 2017 16:29:06 +0200
Subject: [PATCH 12/85] Adding MIT Licence file

---
 LICENSE | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 LICENSE

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..a8fc851
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

From 14d8d614a2e7693aa51bfa367fac5ffd6ddce368 Mon Sep 17 00:00:00 2001
From: Adrien Girardeau <adrigir25@gmail.com>
Date: Mon, 12 Jun 2017 17:00:38 +0200
Subject: [PATCH 13/85] Changing date Licence to match first release

---
 LICENSE | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LICENSE b/LICENSE
index a8fc851..8109ea6 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2016 
+Copyright (c) 2012 
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

From ce0b6f09ff8c4c94e9efe69763f7a34d41ee57df Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 12 Jun 2017 18:03:04 +0200
Subject: [PATCH 14/85] 3.8.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index e5c5e79..77462a7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.7.0",
+  "version": "3.8.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 0bfebedf8951b62d67c7d29d8342be14fcc216e5 Mon Sep 17 00:00:00 2001
From: wetoolaguer <wenceslaoolaguer@gmail.com>
Date: Wed, 12 Jul 2017 07:05:23 +0800
Subject: [PATCH 15/85] Adds sample usage via NPM

---
 README.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/README.md b/README.md
index 0377b9c..5cb2a98 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,23 @@ var b64Data = 'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
     blob = window.dataURLtoBlob && window.dataURLtoBlob(imageUrl);
 ```
 
+E.g. Via Npm/Browserify:
+```shell
+npm i blueimp-canvas-to-blob
+```
+
+Requiring loads the dataURLtoBlob function.
+```js
+var dataURLtoBlob = require('blueimp-canvas-to-blob');
+
+// 80x60px GIF image (color black, base64 data):
+var b64Data = 'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
+        'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
+        'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
+    imageUrl = 'data:image/gif;base64,' + b64Data,
+    blob = dataURLtoBlob(imageURL);
+```
+
 ## Browsers
 The following browsers support either the native or the polyfill
 *canvas.toBlob()* method:

From 0e1f70585cc32b65c67effea13a1c97414ce9396 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 13 Jul 2017 22:52:58 +0200
Subject: [PATCH 16/85] Update load-image test vendor library.

---
 test/index.html                 |   1 +
 test/vendor/load-image-scale.js | 282 +++++++++++++++++++++++++++++
 test/vendor/load-image.js       | 312 +++++---------------------------
 3 files changed, 325 insertions(+), 270 deletions(-)
 create mode 100644 test/vendor/load-image-scale.js

diff --git a/test/index.html b/test/index.html
index ca5eee6..dc8fc50 100644
--- a/test/index.html
+++ b/test/index.html
@@ -30,6 +30,7 @@
 mocha.setup('bdd');
 </script>
 <script src="http://github.com/vendor/load-image.js"></script>
+<script src="http://github.com/vendor/load-image-scale.js"></script>
 <script src="http://github.com/js/canvas-to-blob.js"></script>
 <script src="http://github.com/test.js"></script>
 <script>
diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
new file mode 100644
index 0000000..aaaebeb
--- /dev/null
+++ b/test/vendor/load-image-scale.js
@@ -0,0 +1,282 @@
+/*
+ * JavaScript Load Image Scaling
+ * https://github.com/blueimp/JavaScript-Load-Image
+ *
+ * Copyright 2011, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * https://opensource.org/licenses/MIT
+ */
+
+/* global define */
+
+;(function (factory) {
+  'use strict'
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['./load-image'], factory)
+  } else if (typeof module === 'object' && module.exports) {
+    factory(require('./load-image'))
+  } else {
+    // Browser globals:
+    factory(window.loadImage)
+  }
+}(function (loadImage) {
+  'use strict'
+
+  var originalTransform = loadImage.transform
+
+  loadImage.transform = function (img, options, callback, file, data) {
+    originalTransform.call(
+      loadImage,
+      loadImage.scale(img, options, data),
+      options,
+      callback,
+      file,
+      data
+    )
+  }
+
+  // Transform image coordinates, allows to override e.g.
+  // the canvas orientation based on the orientation option,
+  // gets canvas, options passed as arguments:
+  loadImage.transformCoordinates = function () {
+    return
+  }
+
+  // Returns transformed options, allows to override e.g.
+  // maxWidth, maxHeight and crop options based on the aspectRatio.
+  // gets img, options passed as arguments:
+  loadImage.getTransformedOptions = function (img, options) {
+    var aspectRatio = options.aspectRatio
+    var newOptions
+    var i
+    var width
+    var height
+    if (!aspectRatio) {
+      return options
+    }
+    newOptions = {}
+    for (i in options) {
+      if (options.hasOwnProperty(i)) {
+        newOptions[i] = options[i]
+      }
+    }
+    newOptions.crop = true
+    width = img.naturalWidth || img.width
+    height = img.naturalHeight || img.height
+    if (width / height > aspectRatio) {
+      newOptions.maxWidth = height * aspectRatio
+      newOptions.maxHeight = height
+    } else {
+      newOptions.maxWidth = width
+      newOptions.maxHeight = width / aspectRatio
+    }
+    return newOptions
+  }
+
+  // Canvas render method, allows to implement a different rendering algorithm:
+  loadImage.renderImageToCanvas = function (
+    canvas,
+    img,
+    sourceX,
+    sourceY,
+    sourceWidth,
+    sourceHeight,
+    destX,
+    destY,
+    destWidth,
+    destHeight
+  ) {
+    canvas.getContext('2d').drawImage(
+      img,
+      sourceX,
+      sourceY,
+      sourceWidth,
+      sourceHeight,
+      destX,
+      destY,
+      destWidth,
+      destHeight
+    )
+    return canvas
+  }
+
+  // Determines if the target image should be a canvas element:
+  loadImage.hasCanvasOption = function (options) {
+    return options.canvas || options.crop || !!options.aspectRatio
+  }
+
+  // Scales and/or crops the given image (img or canvas HTML element)
+  // using the given options.
+  // Returns a canvas object if the browser supports canvas
+  // and the hasCanvasOption method returns true or a canvas
+  // object is passed as image, else the scaled image:
+  loadImage.scale = function (img, options, data) {
+    options = options || {}
+    var canvas = document.createElement('canvas')
+    var useCanvas = img.getContext ||
+                    (loadImage.hasCanvasOption(options) && canvas.getContext)
+    var width = img.naturalWidth || img.width
+    var height = img.naturalHeight || img.height
+    var destWidth = width
+    var destHeight = height
+    var maxWidth
+    var maxHeight
+    var minWidth
+    var minHeight
+    var sourceWidth
+    var sourceHeight
+    var sourceX
+    var sourceY
+    var pixelRatio
+    var downsamplingRatio
+    var tmp
+    function scaleUp () {
+      var scale = Math.max(
+        (minWidth || destWidth) / destWidth,
+        (minHeight || destHeight) / destHeight
+      )
+      if (scale > 1) {
+        destWidth *= scale
+        destHeight *= scale
+      }
+    }
+    function scaleDown () {
+      var scale = Math.min(
+        (maxWidth || destWidth) / destWidth,
+        (maxHeight || destHeight) / destHeight
+      )
+      if (scale < 1) {
+        destWidth *= scale
+        destHeight *= scale
+      }
+    }
+    if (useCanvas) {
+      options = loadImage.getTransformedOptions(img, options, data)
+      sourceX = options.left || 0
+      sourceY = options.top || 0
+      if (options.sourceWidth) {
+        sourceWidth = options.sourceWidth
+        if (options.right !== undefined && options.left === undefined) {
+          sourceX = width - sourceWidth - options.right
+        }
+      } else {
+        sourceWidth = width - sourceX - (options.right || 0)
+      }
+      if (options.sourceHeight) {
+        sourceHeight = options.sourceHeight
+        if (options.bottom !== undefined && options.top === undefined) {
+          sourceY = height - sourceHeight - options.bottom
+        }
+      } else {
+        sourceHeight = height - sourceY - (options.bottom || 0)
+      }
+      destWidth = sourceWidth
+      destHeight = sourceHeight
+    }
+    maxWidth = options.maxWidth
+    maxHeight = options.maxHeight
+    minWidth = options.minWidth
+    minHeight = options.minHeight
+    if (useCanvas && maxWidth && maxHeight && options.crop) {
+      destWidth = maxWidth
+      destHeight = maxHeight
+      tmp = sourceWidth / sourceHeight - maxWidth / maxHeight
+      if (tmp < 0) {
+        sourceHeight = maxHeight * sourceWidth / maxWidth
+        if (options.top === undefined && options.bottom === undefined) {
+          sourceY = (height - sourceHeight) / 2
+        }
+      } else if (tmp > 0) {
+        sourceWidth = maxWidth * sourceHeight / maxHeight
+        if (options.left === undefined && options.right === undefined) {
+          sourceX = (width - sourceWidth) / 2
+        }
+      }
+    } else {
+      if (options.contain || options.cover) {
+        minWidth = maxWidth = maxWidth || minWidth
+        minHeight = maxHeight = maxHeight || minHeight
+      }
+      if (options.cover) {
+        scaleDown()
+        scaleUp()
+      } else {
+        scaleUp()
+        scaleDown()
+      }
+    }
+    if (useCanvas) {
+      pixelRatio = options.pixelRatio
+      if (pixelRatio > 1) {
+        canvas.style.width = destWidth + 'px'
+        canvas.style.height = destHeight + 'px'
+        destWidth *= pixelRatio
+        destHeight *= pixelRatio
+        canvas.getContext('2d').scale(pixelRatio, pixelRatio)
+      }
+      downsamplingRatio = options.downsamplingRatio
+      if (downsamplingRatio > 0 && downsamplingRatio < 1 &&
+            destWidth < sourceWidth && destHeight < sourceHeight) {
+        while (sourceWidth * downsamplingRatio > destWidth) {
+          canvas.width = sourceWidth * downsamplingRatio
+          canvas.height = sourceHeight * downsamplingRatio
+          loadImage.renderImageToCanvas(
+            canvas,
+            img,
+            sourceX,
+            sourceY,
+            sourceWidth,
+            sourceHeight,
+            0,
+            0,
+            canvas.width,
+            canvas.height
+          )
+          sourceX = 0
+          sourceY = 0
+          sourceWidth = canvas.width
+          sourceHeight = canvas.height
+          img = document.createElement('canvas')
+          img.width = sourceWidth
+          img.height = sourceHeight
+          loadImage.renderImageToCanvas(
+            img,
+            canvas,
+            0,
+            0,
+            sourceWidth,
+            sourceHeight,
+            0,
+            0,
+            sourceWidth,
+            sourceHeight
+          )
+        }
+      }
+      canvas.width = destWidth
+      canvas.height = destHeight
+      loadImage.transformCoordinates(
+        canvas,
+        options
+      )
+      return loadImage.renderImageToCanvas(
+        canvas,
+        img,
+        sourceX,
+        sourceY,
+        sourceWidth,
+        sourceHeight,
+        0,
+        0,
+        destWidth,
+        destHeight
+      )
+    }
+    img.width = destWidth
+    img.height = destHeight
+    return img
+  }
+}))
diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index c5dcd31..a230944 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -26,37 +26,44 @@
     img.onload = function (event) {
       return loadImage.onload(img, event, file, callback, options)
     }
-    if (loadImage.isInstanceOf('Blob', file) ||
-      // Files are also Blob instances, but some browsers
-      // (Firefox 3.6) support the File API but not Blobs:
-      loadImage.isInstanceOf('File', file)) {
+    if (typeof file === 'string') {
+      loadImage.fetchBlob(file, function (blob) {
+        if (blob) {
+          file = blob
+          url = loadImage.createObjectURL(file)
+        } else {
+          url = file
+          if (options && options.crossOrigin) {
+            img.crossOrigin = options.crossOrigin
+          }
+        }
+        img.src = url
+      }, options)
+      return img
+    } else if (loadImage.isInstanceOf('Blob', file) ||
+        // Files are also Blob instances, but some browsers
+        // (Firefox 3.6) support the File API but not Blobs:
+        loadImage.isInstanceOf('File', file)) {
       url = img._objectURL = loadImage.createObjectURL(file)
-    } else if (typeof file === 'string') {
-      url = file
-      if (options && options.crossOrigin) {
-        img.crossOrigin = options.crossOrigin
+      if (url) {
+        img.src = url
+        return img
       }
-    } else {
-      return false
-    }
-    if (url) {
-      img.src = url
-      return img
+      return loadImage.readFile(file, function (e) {
+        var target = e.target
+        if (target && target.result) {
+          img.src = target.result
+        } else if (callback) {
+          callback(e)
+        }
+      })
     }
-    return loadImage.readFile(file, function (e) {
-      var target = e.target
-      if (target && target.result) {
-        img.src = target.result
-      } else if (callback) {
-        callback(e)
-      }
-    })
   }
   // The check for URL.revokeObjectURL fixes an issue with Opera 12,
   // which provides URL.createObjectURL but doesn't properly implement it:
-  var urlAPI = (window.createObjectURL && window) ||
-                (window.URL && URL.revokeObjectURL && URL) ||
-                (window.webkitURL && webkitURL)
+  var urlAPI = ($.createObjectURL && $) ||
+                ($.URL && URL.revokeObjectURL && URL) ||
+                ($.webkitURL && webkitURL)
 
   function revokeHelper (img, options) {
     if (img._objectURL && !(options && options.noRevoke)) {
@@ -65,13 +72,20 @@
     }
   }
 
+  // If the callback given to this function returns a blob, it is used as image
+  // source instead of the original url and overrides the file argument used in
+  // the onload and onerror event callbacks:
+  loadImage.fetchBlob = function (url, callback, options) {
+    callback()
+  }
+
   loadImage.isInstanceOf = function (type, obj) {
     // Cross-frame instanceof check
     return Object.prototype.toString.call(obj) === '[object ' + type + ']'
   }
 
   loadImage.transform = function (img, options, callback, file, data) {
-    callback(loadImage.scale(img, options, data), data)
+    callback(img, data)
   }
 
   loadImage.onerror = function (img, event, file, callback, options) {
@@ -88,248 +102,6 @@
     }
   }
 
-  // Transform image coordinates, allows to override e.g.
-  // the canvas orientation based on the orientation option,
-  // gets canvas, options passed as arguments:
-  loadImage.transformCoordinates = function () {
-    return
-  }
-
-  // Returns transformed options, allows to override e.g.
-  // maxWidth, maxHeight and crop options based on the aspectRatio.
-  // gets img, options passed as arguments:
-  loadImage.getTransformedOptions = function (img, options) {
-    var aspectRatio = options.aspectRatio
-    var newOptions
-    var i
-    var width
-    var height
-    if (!aspectRatio) {
-      return options
-    }
-    newOptions = {}
-    for (i in options) {
-      if (options.hasOwnProperty(i)) {
-        newOptions[i] = options[i]
-      }
-    }
-    newOptions.crop = true
-    width = img.naturalWidth || img.width
-    height = img.naturalHeight || img.height
-    if (width / height > aspectRatio) {
-      newOptions.maxWidth = height * aspectRatio
-      newOptions.maxHeight = height
-    } else {
-      newOptions.maxWidth = width
-      newOptions.maxHeight = width / aspectRatio
-    }
-    return newOptions
-  }
-
-  // Canvas render method, allows to implement a different rendering algorithm:
-  loadImage.renderImageToCanvas = function (
-    canvas,
-    img,
-    sourceX,
-    sourceY,
-    sourceWidth,
-    sourceHeight,
-    destX,
-    destY,
-    destWidth,
-    destHeight
-  ) {
-    canvas.getContext('2d').drawImage(
-      img,
-      sourceX,
-      sourceY,
-      sourceWidth,
-      sourceHeight,
-      destX,
-      destY,
-      destWidth,
-      destHeight
-    )
-    return canvas
-  }
-
-  // Determines if the target image should be a canvas element:
-  loadImage.hasCanvasOption = function (options) {
-    return options.canvas || options.crop || !!options.aspectRatio
-  }
-
-  // Scales and/or crops the given image (img or canvas HTML element)
-  // using the given options.
-  // Returns a canvas object if the browser supports canvas
-  // and the hasCanvasOption method returns true or a canvas
-  // object is passed as image, else the scaled image:
-  loadImage.scale = function (img, options, data) {
-    options = options || {}
-    var canvas = document.createElement('canvas')
-    var useCanvas = img.getContext ||
-                    (loadImage.hasCanvasOption(options) && canvas.getContext)
-    var width = img.naturalWidth || img.width
-    var height = img.naturalHeight || img.height
-    var destWidth = width
-    var destHeight = height
-    var maxWidth
-    var maxHeight
-    var minWidth
-    var minHeight
-    var sourceWidth
-    var sourceHeight
-    var sourceX
-    var sourceY
-    var pixelRatio
-    var downsamplingRatio
-    var tmp
-    function scaleUp () {
-      var scale = Math.max(
-        (minWidth || destWidth) / destWidth,
-        (minHeight || destHeight) / destHeight
-      )
-      if (scale > 1) {
-        destWidth *= scale
-        destHeight *= scale
-      }
-    }
-    function scaleDown () {
-      var scale = Math.min(
-        (maxWidth || destWidth) / destWidth,
-        (maxHeight || destHeight) / destHeight
-      )
-      if (scale < 1) {
-        destWidth *= scale
-        destHeight *= scale
-      }
-    }
-    if (useCanvas) {
-      options = loadImage.getTransformedOptions(img, options, data)
-      sourceX = options.left || 0
-      sourceY = options.top || 0
-      if (options.sourceWidth) {
-        sourceWidth = options.sourceWidth
-        if (options.right !== undefined && options.left === undefined) {
-          sourceX = width - sourceWidth - options.right
-        }
-      } else {
-        sourceWidth = width - sourceX - (options.right || 0)
-      }
-      if (options.sourceHeight) {
-        sourceHeight = options.sourceHeight
-        if (options.bottom !== undefined && options.top === undefined) {
-          sourceY = height - sourceHeight - options.bottom
-        }
-      } else {
-        sourceHeight = height - sourceY - (options.bottom || 0)
-      }
-      destWidth = sourceWidth
-      destHeight = sourceHeight
-    }
-    maxWidth = options.maxWidth
-    maxHeight = options.maxHeight
-    minWidth = options.minWidth
-    minHeight = options.minHeight
-    if (useCanvas && maxWidth && maxHeight && options.crop) {
-      destWidth = maxWidth
-      destHeight = maxHeight
-      tmp = sourceWidth / sourceHeight - maxWidth / maxHeight
-      if (tmp < 0) {
-        sourceHeight = maxHeight * sourceWidth / maxWidth
-        if (options.top === undefined && options.bottom === undefined) {
-          sourceY = (height - sourceHeight) / 2
-        }
-      } else if (tmp > 0) {
-        sourceWidth = maxWidth * sourceHeight / maxHeight
-        if (options.left === undefined && options.right === undefined) {
-          sourceX = (width - sourceWidth) / 2
-        }
-      }
-    } else {
-      if (options.contain || options.cover) {
-        minWidth = maxWidth = maxWidth || minWidth
-        minHeight = maxHeight = maxHeight || minHeight
-      }
-      if (options.cover) {
-        scaleDown()
-        scaleUp()
-      } else {
-        scaleUp()
-        scaleDown()
-      }
-    }
-    if (useCanvas) {
-      pixelRatio = options.pixelRatio
-      if (pixelRatio > 1) {
-        canvas.style.width = destWidth + 'px'
-        canvas.style.height = destHeight + 'px'
-        destWidth *= pixelRatio
-        destHeight *= pixelRatio
-        canvas.getContext('2d').scale(pixelRatio, pixelRatio)
-      }
-      downsamplingRatio = options.downsamplingRatio
-      if (downsamplingRatio > 0 && downsamplingRatio < 1 &&
-            destWidth < sourceWidth && destHeight < sourceHeight) {
-        while (sourceWidth * downsamplingRatio > destWidth) {
-          canvas.width = sourceWidth * downsamplingRatio
-          canvas.height = sourceHeight * downsamplingRatio
-          loadImage.renderImageToCanvas(
-            canvas,
-            img,
-            sourceX,
-            sourceY,
-            sourceWidth,
-            sourceHeight,
-            0,
-            0,
-            canvas.width,
-            canvas.height
-          )
-          sourceX = 0
-          sourceY = 0
-          sourceWidth = canvas.width
-          sourceHeight = canvas.height
-          img = document.createElement('canvas')
-          img.width = sourceWidth
-          img.height = sourceHeight
-          loadImage.renderImageToCanvas(
-            img,
-            canvas,
-            0,
-            0,
-            sourceWidth,
-            sourceHeight,
-            0,
-            0,
-            sourceWidth,
-            sourceHeight
-          )
-        }
-      }
-      canvas.width = destWidth
-      canvas.height = destHeight
-      loadImage.transformCoordinates(
-        canvas,
-        options
-      )
-      return loadImage.renderImageToCanvas(
-        canvas,
-        img,
-        sourceX,
-        sourceY,
-        sourceWidth,
-        sourceHeight,
-        0,
-        0,
-        destWidth,
-        destHeight
-      )
-    }
-    img.width = destWidth
-    img.height = destHeight
-    return img
-  }
-
   loadImage.createObjectURL = function (file) {
     return urlAPI ? urlAPI.createObjectURL(file) : false
   }
@@ -342,7 +114,7 @@
   // invokes the callback with the event object (load or error).
   // The result can be read via event.target.result:
   loadImage.readFile = function (file, callback, method) {
-    if (window.FileReader) {
+    if ($.FileReader) {
       var fileReader = new FileReader()
       fileReader.onload = fileReader.onerror = callback
       method = method || 'readAsDataURL'
@@ -363,4 +135,4 @@
   } else {
     $.loadImage = loadImage
   }
-}(window))
+}(this))

From b0100764bbcc0a225da156c8e5bf753a4e181682 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 13 Jul 2017 22:53:13 +0200
Subject: [PATCH 17/85] 3.9.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 77462a7..9d1a40f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.8.0",
+  "version": "3.9.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 176d74a729b10812cbcbe06f59be27673bf3a23d Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 26 Jul 2017 11:19:43 +0200
Subject: [PATCH 18/85] Add author info to license text.

---
 LICENSE | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LICENSE b/LICENSE
index 8109ea6..70960cf 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2012 
+Copyright © 2012 Sebastian Tschan, https://blueimp.net
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

From 135c14dd42ea922fc6b2cfa3aab53c8095864c3f Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 26 Jul 2017 11:20:12 +0200
Subject: [PATCH 19/85] 3.10.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 9d1a40f..31b0533 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.9.0",
+  "version": "3.10.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 737adb9cbda04d1cbdc7741ce61c666524750c22 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 26 Jul 2017 11:23:10 +0200
Subject: [PATCH 20/85] Add txt extension to LICENSE file.

---
 LICENSE => LICENSE.txt | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename LICENSE => LICENSE.txt (100%)

diff --git a/LICENSE b/LICENSE.txt
similarity index 100%
rename from LICENSE
rename to LICENSE.txt

From a8e66f1443d67d1a42b79568570daf086fc43809 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 26 Jul 2017 11:23:22 +0200
Subject: [PATCH 21/85] 3.11.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 31b0533..977053f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.10.0",
+  "version": "3.11.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 01a869a539ab296a41371becccda2797daa63e28 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 11:31:38 +0200
Subject: [PATCH 22/85] Wrap callbacks in setTimeout calls. Closes #29 Thanks
 @JiaLiPassion and @Arikael for report and implementation.

---
 js/canvas-to-blob.js | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index c46480d..83f7905 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -87,15 +87,21 @@
   if (window.HTMLCanvasElement && !CanvasPrototype.toBlob) {
     if (CanvasPrototype.mozGetAsFile) {
       CanvasPrototype.toBlob = function (callback, type, quality) {
-        if (quality && CanvasPrototype.toDataURL && dataURLtoBlob) {
-          callback(dataURLtoBlob(this.toDataURL(type, quality)))
-        } else {
-          callback(this.mozGetAsFile('blob', type))
-        }
+        var self = this
+        setTimeout(function () {
+          if (quality && CanvasPrototype.toDataURL && dataURLtoBlob) {
+            callback(dataURLtoBlob(self.toDataURL(type, quality)))
+          } else {
+            callback(self.mozGetAsFile('blob', type))
+          }
+        })
       }
     } else if (CanvasPrototype.toDataURL && dataURLtoBlob) {
       CanvasPrototype.toBlob = function (callback, type, quality) {
-        callback(dataURLtoBlob(this.toDataURL(type, quality)))
+        var self = this
+        setTimeout(function () {
+          callback(dataURLtoBlob(self.toDataURL(type, quality)))
+        })
       }
     }
   }

From 857038d73e7a938c92f54727e685fdf323116b8f Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 11:51:03 +0200
Subject: [PATCH 23/85] Use standard via eslint config.

---
 .eslintignore |  3 +++
 .eslintrc.js  |  7 +++++++
 package.json  | 13 +++++++++----
 test/test.js  |  4 ++--
 4 files changed, 21 insertions(+), 6 deletions(-)
 create mode 100644 .eslintignore
 create mode 100644 .eslintrc.js

diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..052cf4f
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,3 @@
+!.eslintrc.js
+js/*.min.js
+test/vendor
diff --git a/.eslintrc.js b/.eslintrc.js
new file mode 100644
index 0000000..ccad27b
--- /dev/null
+++ b/.eslintrc.js
@@ -0,0 +1,7 @@
+module.exports = {
+  extends: 'standard',
+  plugins: [
+    'standard',
+    'promise'
+  ]
+}
diff --git a/package.json b/package.json
index 977053f..0befecb 100644
--- a/package.json
+++ b/package.json
@@ -22,13 +22,18 @@
   "license": "MIT",
   "main": "./js/canvas-to-blob.js",
   "devDependencies": {
-    "phantomjs-prebuilt": "2.1.13",
+    "eslint": "^4.5.0",
+    "eslint-config-standard": "^10.2.1",
+    "eslint-plugin-import": "^2.7.0",
+    "eslint-plugin-node": "^5.1.1",
+    "eslint-plugin-promise": "^3.5.0",
+    "eslint-plugin-standard": "^3.0.1",
     "mocha-phantomjs-core": "1.3.1",
-    "standard": "8.3.0",
-    "uglify-js": "2.7.3"
+    "phantomjs-prebuilt": "2.1.13",
+    "uglify-js": "^3.0.28"
   },
   "scripts": {
-    "lint": "standard js/*.js test/*.js",
+    "lint": "eslint .",
     "unit": "phantomjs node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/index.html",
     "test": "npm run lint && npm run unit",
     "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map canvas-to-blob.min.js.map",
diff --git a/test/test.js b/test/test.js
index e4d9138..092900f 100644
--- a/test/test.js
+++ b/test/test.js
@@ -77,9 +77,9 @@
           function (newBlob) {
             window.loadImage(newBlob, function (newCanvas) {
               var canvasData = canvas.getContext('2d')
-                  .getImageData(0, 0, canvas.width, canvas.height)
+                .getImageData(0, 0, canvas.width, canvas.height)
               var newCanvasData = newCanvas.getContext('2d')
-                  .getImageData(0, 0, newCanvas.width, newCanvas.height)
+                .getImageData(0, 0, newCanvas.width, newCanvas.height)
               expect(canvasData.width).to.equal(newCanvasData.width)
               expect(canvasData.height).to.equal(newCanvasData.height)
               done()

From 1a0c6dfae87dffdb04c6cedbac5f711ef07605da Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 13:32:30 +0200
Subject: [PATCH 24/85] Use chrome and a local webserver for the unit tests.

---
 package.json | 10 +++++++---
 test/test.js | 30 +++++++++++++++++++++---------
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/package.json b/package.json
index 0befecb..6aa2d94 100644
--- a/package.json
+++ b/package.json
@@ -22,19 +22,23 @@
   "license": "MIT",
   "main": "./js/canvas-to-blob.js",
   "devDependencies": {
+    "concurrently": "^3.5.0",
     "eslint": "^4.5.0",
     "eslint-config-standard": "^10.2.1",
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-node": "^5.1.1",
     "eslint-plugin-promise": "^3.5.0",
     "eslint-plugin-standard": "^3.0.1",
-    "mocha-phantomjs-core": "1.3.1",
-    "phantomjs-prebuilt": "2.1.13",
+    "get-port-cli": "^1.1.0",
+    "http-server": "^0.10.0",
+    "mocha-chrome": "^0.1.1",
     "uglify-js": "^3.0.28"
   },
   "scripts": {
     "lint": "eslint .",
-    "unit": "phantomjs node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/index.html",
+    "serve": "http-server . -a 127.0.0.1 -p $PORT -s",
+    "mocha": "mocha-chrome http://127.0.0.1:$PORT/test",
+    "unit": "PORT=$(get-port) concurrently -k 'npm run serve' 'npm run mocha'",
     "test": "npm run lint && npm run unit",
     "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map canvas-to-blob.min.js.map",
     "preversion": "npm test",
diff --git a/test/test.js b/test/test.js
index 092900f..e1f6df2 100644
--- a/test/test.js
+++ b/test/test.js
@@ -9,22 +9,30 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global describe, it, Blob */
+/* global describe, it, Blob, chai, dataURLtoBlob */
 
-;(function (expect) {
+;(function () {
   'use strict'
 
+  var expect = chai.expect
+  var canvasToBlob = function (canvas, callback, type, quality) {
+    setTimeout(function () {
+      callback(dataURLtoBlob(canvas.toDataURL(type, quality)))
+    })
+  }
+
   // 80x60px GIF image (color black, base64 data):
   var b64Data = 'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
       'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
       'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7'
   var imageUrl = 'data:image/gif;base64,' + b64Data
-  var blob = window.dataURLtoBlob && window.dataURLtoBlob(imageUrl)
+  var blob = dataURLtoBlob(imageUrl)
 
   describe('canvas.toBlob', function () {
     it('Converts a canvas element to a blob and passes it to the callback function', function (done) {
       window.loadImage(blob, function (canvas) {
-        canvas.toBlob(
+        canvasToBlob(
+          canvas,
           function (newBlob) {
             expect(newBlob).to.be.a.instanceOf(Blob)
             done()
@@ -35,7 +43,8 @@
 
     it('Converts a canvas element to a PNG blob', function (done) {
       window.loadImage(blob, function (canvas) {
-        canvas.toBlob(
+        canvasToBlob(
+          canvas,
           function (newBlob) {
             expect(newBlob.type).to.equal('image/png')
             done()
@@ -47,7 +56,8 @@
 
     it('Converts a canvas element to a JPG blob', function (done) {
       window.loadImage(blob, function (canvas) {
-        canvas.toBlob(
+        canvasToBlob(
+          canvas,
           function (newBlob) {
             expect(newBlob.type).to.equal('image/jpeg')
             done()
@@ -59,7 +69,8 @@
 
     it('Keeps the aspect ratio of the canvas image', function (done) {
       window.loadImage(blob, function (canvas) {
-        canvas.toBlob(
+        canvasToBlob(
+          canvas,
           function (newBlob) {
             window.loadImage(newBlob, function (img) {
               expect(img.width).to.equal(canvas.width)
@@ -73,7 +84,8 @@
 
     it('Keeps the image data of the canvas image', function (done) {
       window.loadImage(blob, function (canvas) {
-        canvas.toBlob(
+        canvasToBlob(
+          canvas,
           function (newBlob) {
             window.loadImage(newBlob, function (newCanvas) {
               var canvasData = canvas.getContext('2d')
@@ -89,4 +101,4 @@
       }, {canvas: true})
     })
   })
-}(this.chai.expect))
+}())

From 45f64e32790420b8b72c37f6372a67ee1f0722ff Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 13:42:54 +0200
Subject: [PATCH 25/85] Update uglifyjs settings.

---
 js/canvas-to-blob.min.js     | 2 +-
 js/canvas-to-blob.min.js.map | 2 +-
 package.json                 | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/js/canvas-to-blob.min.js b/js/canvas-to-blob.min.js
index 1c82bba..97fc875 100644
--- a/js/canvas-to-blob.min.js
+++ b/js/canvas-to-blob.min.js
@@ -1,2 +1,2 @@
-!function(t){"use strict";var e=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,o=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),n=o&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),r=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,a=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,i=(o||r)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,i,l,u,b,c,d,B,f;if(e=t.match(a),!e)throw new Error("invalid data URI");for(i=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),l=!!e[4],u=t.slice(e[0].length),b=l?atob(u):decodeURIComponent(u),c=new ArrayBuffer(b.length),d=new Uint8Array(c),B=0;B<b.length;B+=1)d[B]=b.charCodeAt(B);return o?new Blob([n?d:c],{type:i}):(f=new r,f.append(c),f.getBlob(i))};t.HTMLCanvasElement&&!e.toBlob&&(e.mozGetAsFile?e.toBlob=function(t,o,n){t(n&&e.toDataURL&&i?i(this.toDataURL(o,n)):this.mozGetAsFile("blob",o))}:e.toDataURL&&i&&(e.toBlob=function(t,e,o){t(i(this.toDataURL(e,o)))})),"function"==typeof define&&define.amd?define(function(){return i}):"object"==typeof module&&module.exports?module.exports=i:t.dataURLtoBlob=i}(window);
+!function(t){"use strict";var e=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,o=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),n=o&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),r=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,a=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,i=(o||r)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,i,l,u,c,f,b,d,B;if(!(e=t.match(a)))throw new Error("invalid data URI");for(i=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),l=!!e[4],u=t.slice(e[0].length),c=l?atob(u):decodeURIComponent(u),f=new ArrayBuffer(c.length),b=new Uint8Array(f),d=0;d<c.length;d+=1)b[d]=c.charCodeAt(d);return o?new Blob([n?b:f],{type:i}):((B=new r).append(f),B.getBlob(i))};t.HTMLCanvasElement&&!e.toBlob&&(e.mozGetAsFile?e.toBlob=function(t,o,n){var r=this;setTimeout(function(){t(n&&e.toDataURL&&i?i(r.toDataURL(o,n)):r.mozGetAsFile("blob",o))})}:e.toDataURL&&i&&(e.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(i(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return i}):"object"==typeof module&&module.exports?module.exports=i:t.dataURLtoBlob=i}(window);
 //# sourceMappingURL=canvas-to-blob.min.js.map
\ No newline at end of file
diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 7c47d66..9b60778 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","toDataURL","this","define","amd","module","exports"],"mappings":"CAgBE,SAAUA,GACV,YAEA,IAAIC,GAAkBD,EAAOE,mBACLF,EAAOE,kBAAkBC,UAC7CC,EAAqBJ,EAAOK,MAAS,WACvC,IACE,MAAOC,SAAQ,GAAID,OACnB,MAAOE,GACP,OAAO,MAGPC,EAA4BJ,GAAsBJ,EAAOS,YAC1D,WACC,IACE,MAAgD,OAAzC,GAAIJ,OAAM,GAAII,YAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,MAGTI,EAAcX,EAAOW,aAAeX,EAAOY,mBAC3BZ,EAAOa,gBAAkBb,EAAOc,cAChDC,EAAiB,0CACjBC,GAAiBZ,GAAsBO,IAAgBX,EAAOiB,MAChEjB,EAAOkB,aAAelB,EAAOS,YAC7B,SAAUU,GACR,GAAIC,GACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,CAGF,IADAR,EAAUD,EAAQU,MAAMd,IACnBK,EACH,KAAM,IAAIU,OAAM,mBAkBlB,KAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,GAAIP,aAAYM,EAAWQ,QACzCN,EAAW,GAAIjB,YAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,EAGtC,OAAIvB,GACK,GAAIC,OACRG,EAA4BkB,EAAWD,IACvCU,KAAMd,KAGXO,EAAK,GAAIjB,GACTiB,EAAGQ,OAAOX,GACHG,EAAGS,QAAQhB,IAElBrB,GAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GAE/CD,EADEC,GAAWxC,EAAgByC,WAAa1B,EACjCA,EAAc2B,KAAKD,UAAUP,EAAMM,IAEnCE,KAAKJ,aAAa,OAAQJ,KAG9BlC,EAAgByC,WAAa1B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjDD,EAASxB,EAAc2B,KAAKD,UAAUP,EAAMM,QAI5B,kBAAXG,SAAyBA,OAAOC,IACzCD,OAAO,WACL,MAAO5B,KAEkB,gBAAX8B,SAAuBA,OAAOC,QAC9CD,OAAOC,QAAU/B,EAEjBhB,EAAOgB,cAAgBA,GAEzBhB","file":"canvas-to-blob.min.js"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBE,SAAUA,GACV,aAEA,IAAIC,EAAkBD,EAAOE,mBACLF,EAAOE,kBAAkBC,UAC7CC,EAAqBJ,EAAOK,MAAS,WACvC,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJ6B,GAOpCC,EAA4BJ,GAAsBJ,EAAOS,YAC1D,WACC,IACE,OAAgD,MAAzC,IAAIJ,MAAM,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EAAcX,EAAOW,aAAeX,EAAOY,mBAC3BZ,EAAOa,gBAAkBb,EAAOc,cAChDC,EAAiB,0CACjBC,GAAiBZ,GAAsBO,IAAgBX,EAAOiB,MAChEjB,EAAOkB,aAAelB,EAAOS,YAC7B,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,MACRG,EAA4BkB,EAAWD,IACvCU,KAAMd,MAGXO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WAEPJ,EADEC,GAAWxC,EAAgB4C,WAAa7B,EACjCA,EAAc0B,EAAKG,UAAUV,EAAMM,IAEnCC,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EAlG1B,CAoGChB"}
\ No newline at end of file
diff --git a/package.json b/package.json
index 6aa2d94..38f9c0c 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "mocha": "mocha-chrome http://127.0.0.1:$PORT/test",
     "unit": "PORT=$(get-port) concurrently -k 'npm run serve' 'npm run mocha'",
     "test": "npm run lint && npm run unit",
-    "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map canvas-to-blob.min.js.map",
+    "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map url=canvas-to-blob.min.js.map",
     "preversion": "npm test",
     "version": "npm run build && git add -A js",
     "postversion": "git push --tags origin master master:gh-pages && npm publish"

From d9a37fd8b86ed120d6f95b8f4e242ea4889928b8 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 13:43:14 +0200
Subject: [PATCH 26/85] 3.12.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 38f9c0c..76db6a3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.11.0",
+  "version": "3.12.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 028f329972cd8b77cfd9adbb220d3969660c77bb Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 13:51:06 +0200
Subject: [PATCH 27/85] Return exit code based on mocha exit code.

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 76db6a3..3a482da 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "lint": "eslint .",
     "serve": "http-server . -a 127.0.0.1 -p $PORT -s",
     "mocha": "mocha-chrome http://127.0.0.1:$PORT/test",
-    "unit": "PORT=$(get-port) concurrently -k 'npm run serve' 'npm run mocha'",
+    "unit": "PORT=$(get-port) concurrently -k -s first 'npm run serve' 'npm run mocha'",
     "test": "npm run lint && npm run unit",
     "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map url=canvas-to-blob.min.js.map",
     "preversion": "npm test",

From 03fb644a40c481a291037044cf176257bdd22653 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 13:52:55 +0200
Subject: [PATCH 28/85] 3.12.1

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 3a482da..4ad0f07 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.12.0",
+  "version": "3.12.1",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From ab771066e28734dcb3f718baedf95167deefbd5f Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 23:05:49 +0200
Subject: [PATCH 29/85] Ensure chrome headless is available in travis.

---
 .travis.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 7a56d2a..97d3175 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,6 @@
+dist: trusty
+addons:
+  chrome: stable
 language: node_js
 node_js:
   - "stable"

From bedb758b27d23ea83bc94a97cc6ab654bec61d37 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 27 Aug 2017 23:06:30 +0200
Subject: [PATCH 30/85] 3.13.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 4ad0f07..38e365f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.12.1",
+  "version": "3.13.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From dd69d8fb9eac9fb554113633ec1308c94b1ce25d Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 28 Aug 2017 00:53:06 +0200
Subject: [PATCH 31/85] Format code with prettier-eslint.

---
 js/canvas-to-blob.js |  49 +++++++++-------
 package.json         |   2 +
 test/test.js         | 130 +++++++++++++++++++++++++------------------
 3 files changed, 106 insertions(+), 75 deletions(-)

diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index 83f7905..2331d4c 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -17,28 +17,38 @@
 ;(function (window) {
   'use strict'
 
-  var CanvasPrototype = window.HTMLCanvasElement &&
-                          window.HTMLCanvasElement.prototype
-  var hasBlobConstructor = window.Blob && (function () {
-    try {
-      return Boolean(new Blob())
-    } catch (e) {
-      return false
-    }
-  }())
-  var hasArrayBufferViewSupport = hasBlobConstructor && window.Uint8Array &&
+  var CanvasPrototype =
+    window.HTMLCanvasElement && window.HTMLCanvasElement.prototype
+  var hasBlobConstructor =
+    window.Blob &&
+    (function () {
+      try {
+        return Boolean(new Blob())
+      } catch (e) {
+        return false
+      }
+    })()
+  var hasArrayBufferViewSupport =
+    hasBlobConstructor &&
+    window.Uint8Array &&
     (function () {
       try {
         return new Blob([new Uint8Array(100)]).size === 100
       } catch (e) {
         return false
       }
-    }())
-  var BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder ||
-                      window.MozBlobBuilder || window.MSBlobBuilder
+    })()
+  var BlobBuilder =
+    window.BlobBuilder ||
+    window.WebKitBlobBuilder ||
+    window.MozBlobBuilder ||
+    window.MSBlobBuilder
   var dataURIPattern = /^data:((.*?)(;charset=.*?)?)(;base64)?,/
-  var dataURLtoBlob = (hasBlobConstructor || BlobBuilder) && window.atob &&
-    window.ArrayBuffer && window.Uint8Array &&
+  var dataURLtoBlob =
+    (hasBlobConstructor || BlobBuilder) &&
+    window.atob &&
+    window.ArrayBuffer &&
+    window.Uint8Array &&
     function (dataURI) {
       var matches,
         mediaType,
@@ -75,10 +85,9 @@
       }
       // Write the ArrayBuffer (or ArrayBufferView) to a blob:
       if (hasBlobConstructor) {
-        return new Blob(
-          [hasArrayBufferViewSupport ? intArray : arrayBuffer],
-          {type: mediaType}
-        )
+        return new Blob([hasArrayBufferViewSupport ? intArray : arrayBuffer], {
+          type: mediaType
+        })
       }
       bb = new BlobBuilder()
       bb.append(arrayBuffer)
@@ -114,4 +123,4 @@
   } else {
     window.dataURLtoBlob = dataURLtoBlob
   }
-}(window))
+})(window)
diff --git a/package.json b/package.json
index 38e365f..240ffbd 100644
--- a/package.json
+++ b/package.json
@@ -32,9 +32,11 @@
     "get-port-cli": "^1.1.0",
     "http-server": "^0.10.0",
     "mocha-chrome": "^0.1.1",
+    "prettier-eslint-cli": "^4.2.1",
     "uglify-js": "^3.0.28"
   },
   "scripts": {
+    "format": "prettier-eslint --no-semi --single-quote --write **/*.js",
     "lint": "eslint .",
     "serve": "http-server . -a 127.0.0.1 -p $PORT -s",
     "mocha": "mocha-chrome http://127.0.0.1:$PORT/test",
diff --git a/test/test.js b/test/test.js
index e1f6df2..2824db4 100644
--- a/test/test.js
+++ b/test/test.js
@@ -22,83 +22,103 @@
   }
 
   // 80x60px GIF image (color black, base64 data):
-  var b64Data = 'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
-      'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
-      'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7'
+  var b64Data =
+    'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
+    'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
+    'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7'
   var imageUrl = 'data:image/gif;base64,' + b64Data
   var blob = dataURLtoBlob(imageUrl)
 
   describe('canvas.toBlob', function () {
-    it('Converts a canvas element to a blob and passes it to the callback function', function (done) {
-      window.loadImage(blob, function (canvas) {
-        canvasToBlob(
-          canvas,
-          function (newBlob) {
+    it('Converts a canvas element to a blob and passes it to the callback function', function (
+      done
+    ) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(canvas, function (newBlob) {
             expect(newBlob).to.be.a.instanceOf(Blob)
             done()
-          }
-        )
-      }, {canvas: true})
+          })
+        },
+        { canvas: true }
+      )
     })
 
     it('Converts a canvas element to a PNG blob', function (done) {
-      window.loadImage(blob, function (canvas) {
-        canvasToBlob(
-          canvas,
-          function (newBlob) {
-            expect(newBlob.type).to.equal('image/png')
-            done()
-          },
-          'image/png'
-        )
-      }, {canvas: true})
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(
+            canvas,
+            function (newBlob) {
+              expect(newBlob.type).to.equal('image/png')
+              done()
+            },
+            'image/png'
+          )
+        },
+        { canvas: true }
+      )
     })
 
     it('Converts a canvas element to a JPG blob', function (done) {
-      window.loadImage(blob, function (canvas) {
-        canvasToBlob(
-          canvas,
-          function (newBlob) {
-            expect(newBlob.type).to.equal('image/jpeg')
-            done()
-          },
-          'image/jpeg'
-        )
-      }, {canvas: true})
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(
+            canvas,
+            function (newBlob) {
+              expect(newBlob.type).to.equal('image/jpeg')
+              done()
+            },
+            'image/jpeg'
+          )
+        },
+        { canvas: true }
+      )
     })
 
     it('Keeps the aspect ratio of the canvas image', function (done) {
-      window.loadImage(blob, function (canvas) {
-        canvasToBlob(
-          canvas,
-          function (newBlob) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(canvas, function (newBlob) {
             window.loadImage(newBlob, function (img) {
               expect(img.width).to.equal(canvas.width)
               expect(img.height).to.equal(canvas.height)
               done()
             })
-          }
-        )
-      }, {canvas: true})
+          })
+        },
+        { canvas: true }
+      )
     })
 
     it('Keeps the image data of the canvas image', function (done) {
-      window.loadImage(blob, function (canvas) {
-        canvasToBlob(
-          canvas,
-          function (newBlob) {
-            window.loadImage(newBlob, function (newCanvas) {
-              var canvasData = canvas.getContext('2d')
-                .getImageData(0, 0, canvas.width, canvas.height)
-              var newCanvasData = newCanvas.getContext('2d')
-                .getImageData(0, 0, newCanvas.width, newCanvas.height)
-              expect(canvasData.width).to.equal(newCanvasData.width)
-              expect(canvasData.height).to.equal(newCanvasData.height)
-              done()
-            }, {canvas: true})
-          }
-        )
-      }, {canvas: true})
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(canvas, function (newBlob) {
+            window.loadImage(
+              newBlob,
+              function (newCanvas) {
+                var canvasData = canvas
+                  .getContext('2d')
+                  .getImageData(0, 0, canvas.width, canvas.height)
+                var newCanvasData = newCanvas
+                  .getContext('2d')
+                  .getImageData(0, 0, newCanvas.width, newCanvas.height)
+                expect(canvasData.width).to.equal(newCanvasData.width)
+                expect(canvasData.height).to.equal(newCanvasData.height)
+                done()
+              },
+              { canvas: true }
+            )
+          })
+        },
+        { canvas: true }
+      )
     })
   })
-}())
+})()

From 9f3deb2e710d39c72a988559609d9dc9a319de0b Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 28 Aug 2017 00:53:19 +0200
Subject: [PATCH 32/85] 3.14.0

---
 js/canvas-to-blob.min.js.map | 2 +-
 package.json                 | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 9b60778..9f29bce 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBE,SAAUA,GACV,aAEA,IAAIC,EAAkBD,EAAOE,mBACLF,EAAOE,kBAAkBC,UAC7CC,EAAqBJ,EAAOK,MAAS,WACvC,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJ6B,GAOpCC,EAA4BJ,GAAsBJ,EAAOS,YAC1D,WACC,IACE,OAAgD,MAAzC,IAAIJ,MAAM,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EAAcX,EAAOW,aAAeX,EAAOY,mBAC3BZ,EAAOa,gBAAkBb,EAAOc,cAChDC,EAAiB,0CACjBC,GAAiBZ,GAAsBO,IAAgBX,EAAOiB,MAChEjB,EAAOkB,aAAelB,EAAOS,YAC7B,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,MACRG,EAA4BkB,EAAWD,IACvCU,KAAMd,MAGXO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WAEPJ,EADEC,GAAWxC,EAAgB4C,WAAa7B,EACjCA,EAAc0B,EAAKG,UAAUV,EAAMM,IAEnCC,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EAlG1B,CAoGChB"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,GACV,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,MAAM,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,MAAMG,EAA4BkB,EAAWD,IACtDU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WAEPJ,EADEC,GAAWxC,EAAgB4C,WAAa7B,EACjCA,EAAc0B,EAAKG,UAAUV,EAAMM,IAEnCC,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EA3G1B,CA6GEhB"}
\ No newline at end of file
diff --git a/package.json b/package.json
index 240ffbd..f0cf9fb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.13.0",
+  "version": "3.14.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From aff3230179e2bfd54af57e84f02a2f92311e23b3 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 16:42:14 +0900
Subject: [PATCH 33/85] Reformat license text.

---
 LICENSE.txt | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/LICENSE.txt b/LICENSE.txt
index 70960cf..e1ad736 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -2,20 +2,19 @@ MIT License
 
 Copyright © 2012 Sebastian Tschan, https://blueimp.net
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

From 80de990c1393a18a202d3caace7c9f3438ca258b Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 16:42:29 +0900
Subject: [PATCH 34/85] Format markdown using prettier.

---
 README.md | 89 ++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 55 insertions(+), 34 deletions(-)

diff --git a/README.md b/README.md
index 5cb2a98..121301b 100644
--- a/README.md
+++ b/README.md
@@ -1,43 +1,54 @@
 # JavaScript Canvas to Blob
 
+## Contents
+
+- [Description](#description)
+- [Usage](#usage)
+- [Requirements](#requirements)
+- [API](#api)
+- [Browsers](#browsers)
+  - [Desktop browsers](#desktop-browsers)
+  - [Mobile browsers](#mobile-browsers)
+- [Test](#test)
+- [License](#license)
+
 ## Description
+
 Canvas to Blob is a polyfill for the standard JavaScript
 [canvas.toBlob](http://www.w3.org/TR/html5/scripting-1.html#dom-canvas-toblob)
 method.
 
 It can be used to create
-[Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob)
-objects from an HTML
-[canvas](https://developer.mozilla.org/en-US/docs/HTML/Canvas) element.
+[Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob) objects from an
+HTML [canvas](https://developer.mozilla.org/en-US/docs/HTML/Canvas) element.
 
 ## Usage
+
 Include the (minified) JavaScript Canvas to Blob script in your HTML markup:
 
 ```html
 <script src="http://github.com/js/canvas-to-blob.min.js"></script>
 ```
 
-Then use the *canvas.toBlob()* method in the same way as the native
+Then use the _canvas.toBlob()_ method in the same way as the native
 implementation:
 
 ```js
-var canvas = document.createElement('canvas');
+var canvas = document.createElement('canvas')
 /* ... your canvas manipulations ... */
 if (canvas.toBlob) {
-    canvas.toBlob(
-        function (blob) {
-            // Do something with the blob object,
-            // e.g. creating a multipart form for file uploads:
-            var formData = new FormData();
-            formData.append('file', blob, fileName);
-            /* ... */
-        },
-        'image/jpeg'
-    );
+  canvas.toBlob(function(blob) {
+    // Do something with the blob object,
+    // e.g. creating a multipart form for file uploads:
+    var formData = new FormData()
+    formData.append('file', blob, fileName)
+    /* ... */
+  }, 'image/jpeg')
 }
 ```
 
 ## Requirements
+
 The JavaScript Canvas to Blob function has zero dependencies.
 
 However, Canvas to Blob is a very suitable complement to the
@@ -45,6 +56,7 @@ However, Canvas to Blob is a very suitable complement to the
 function.
 
 ## API
+
 In addition to the **canvas.toBlob** polyfill, the JavaScript Canvas to Blob
 script provides one additional function called **dataURLtoBlob**, which is added
 to the global window object, unless the library is loaded via a module loader
@@ -52,50 +64,59 @@ like RequireJS, Browserify or webpack:
 
 ```js
 // 80x60px GIF image (color black, base64 data):
-var b64Data = 'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
-        'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
-        'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
-    imageUrl = 'data:image/gif;base64,' + b64Data,
-    blob = window.dataURLtoBlob && window.dataURLtoBlob(imageUrl);
+var b64Data =
+    'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
+    'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
+    'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
+  imageUrl = 'data:image/gif;base64,' + b64Data,
+  blob = window.dataURLtoBlob && window.dataURLtoBlob(imageUrl)
 ```
 
 E.g. Via Npm/Browserify:
+
 ```shell
 npm i blueimp-canvas-to-blob
 ```
 
 Requiring loads the dataURLtoBlob function.
+
 ```js
-var dataURLtoBlob = require('blueimp-canvas-to-blob');
+var dataURLtoBlob = require('blueimp-canvas-to-blob')
 
 // 80x60px GIF image (color black, base64 data):
-var b64Data = 'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
-        'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
-        'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
-    imageUrl = 'data:image/gif;base64,' + b64Data,
-    blob = dataURLtoBlob(imageURL);
+var b64Data =
+    'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
+    'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
+    'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
+  imageUrl = 'data:image/gif;base64,' + b64Data,
+  blob = dataURLtoBlob(imageURL)
 ```
 
 ## Browsers
+
 The following browsers support either the native or the polyfill
-*canvas.toBlob()* method:
+_canvas.toBlob()_ method:
 
 ### Desktop browsers
 
-* Google Chrome (see [Chromium issue #67587](https://code.google.com/p/chromium/issues/detail?id=67587))
-* Apple Safari 6.0+ (see [Mozilla issue #648610](https://bugzilla.mozilla.org/show_bug.cgi?id=648610))
-* Mozilla Firefox 4.0+
-* Microsoft Internet Explorer 10.0+
+- Google Chrome (see
+  [Chromium issue #67587](https://code.google.com/p/chromium/issues/detail?id=67587))
+- Apple Safari 6.0+ (see
+  [Mozilla issue #648610](https://bugzilla.mozilla.org/show_bug.cgi?id=648610))
+- Mozilla Firefox 4.0+
+- Microsoft Internet Explorer 10.0+
 
 ### Mobile browsers
 
-* Apple Safari Mobile on iOS 6.0+
-* Google Chrome on iOS 6.0+
-* Google Chrome on Android 4.0+
+- Apple Safari Mobile on iOS 6.0+
+- Google Chrome on iOS 6.0+
+- Google Chrome on Android 4.0+
 
 ## Test
+
 [JavaScript Canvas to Blob Test](https://blueimp.github.io/JavaScript-Canvas-to-Blob/test/)
 
 ## License
+
 The JavaScript Canvas to Blob script is released under the
 [MIT license](https://opensource.org/licenses/MIT).

From ec7593d3eb53c12a3fe8bbdddf64065b65cd2694 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 16:43:35 +0900
Subject: [PATCH 35/85] Format HTML using prettier.

---
 test/index.html | 54 ++++++++++++++++++++++++-------------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/test/index.html b/test/index.html
index dc8fc50..f24952c 100644
--- a/test/index.html
+++ b/test/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE HTML>
+<!DOCTYPE html>
 <!--
 /*
  * JavaScript Canvas to Blob Test
@@ -12,30 +12,30 @@
  */
 -->
 <html lang="en">
-<head>
-<!--[if IE]>
-<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
-<![endif]-->
-<meta charset="utf-8">
-<title>JavaScript Canvas to Blob Test</title>
-<meta name="viewport" content="width=device-width, initial-scale=1.0">
-<link rel="stylesheet" href="http://github.com/vendor/mocha.css">
-</head>
-<body>
-<div id="mocha"></div>
-<script src="http://github.com/vendor/mocha.js"></script>
-<script src="http://github.com/vendor/chai.js"></script>
-<script>
-window.initMochaPhantomJS && initMochaPhantomJS();
-mocha.setup('bdd');
-</script>
-<script src="http://github.com/vendor/load-image.js"></script>
-<script src="http://github.com/vendor/load-image-scale.js"></script>
-<script src="http://github.com/js/canvas-to-blob.js"></script>
-<script src="http://github.com/test.js"></script>
-<script>
-mocha.checkLeaks();
-mocha.run();
-</script>
-</body>
+  <head>
+    <!--[if IE]>
+      <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
+    <![endif]-->
+    <meta charset="utf-8" />
+    <title>JavaScript Canvas to Blob Test</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="stylesheet" href="http://github.com/vendor/mocha.css" />
+  </head>
+  <body>
+    <div id="mocha"></div>
+    <script src="http://github.com/vendor/mocha.js"></script>
+    <script src="http://github.com/vendor/chai.js"></script>
+    <script>
+      window.initMochaPhantomJS && initMochaPhantomJS()
+      mocha.setup('bdd')
+    </script>
+    <script src="http://github.com/vendor/load-image.js"></script>
+    <script src="http://github.com/vendor/load-image-scale.js"></script>
+    <script src="http://github.com/js/canvas-to-blob.js"></script>
+    <script src="http://github.com/test.js"></script>
+    <script>
+      mocha.checkLeaks()
+      mocha.run()
+    </script>
+  </body>
 </html>

From bf29021af9bebedb38b345bab0e082f2c44ab489 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 16:46:24 +0900
Subject: [PATCH 36/85] Use blueimp+jsdoc+prettier config for eslint.

Move eslint configs to package.json.
Use package.json files property instead of .npmignore.
---
 .eslintignore        |    3 -
 .eslintrc.js         |    7 -
 .gitignore           |    1 -
 .npmignore           |    3 -
 js/canvas-to-blob.js |   20 +-
 package-lock.json    | 2288 ++++++++++++++++++++++++++++++++++++++++++
 package.json         |   51 +-
 test/test.js         |   46 +-
 8 files changed, 2356 insertions(+), 63 deletions(-)
 delete mode 100644 .eslintignore
 delete mode 100644 .eslintrc.js
 delete mode 100644 .npmignore
 create mode 100644 package-lock.json

diff --git a/.eslintignore b/.eslintignore
deleted file mode 100644
index 052cf4f..0000000
--- a/.eslintignore
+++ /dev/null
@@ -1,3 +0,0 @@
-!.eslintrc.js
-js/*.min.js
-test/vendor
diff --git a/.eslintrc.js b/.eslintrc.js
deleted file mode 100644
index ccad27b..0000000
--- a/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-module.exports = {
-  extends: 'standard',
-  plugins: [
-    'standard',
-    'promise'
-  ]
-}
diff --git a/.gitignore b/.gitignore
index 9daa824..3c3629e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
-.DS_Store
 node_modules
diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index a508bcb..0000000
--- a/.npmignore
+++ /dev/null
@@ -1,3 +0,0 @@
-*
-!js/*.js
-!js/*.js.map
diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index 2331d4c..801339c 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -12,16 +12,16 @@
  * http://stackoverflow.com/q/4998908
  */
 
-/* global atob, Blob, define */
+/* global define, Uint8Array, ArrayBuffer, module */
 
-;(function (window) {
+;(function(window) {
   'use strict'
 
   var CanvasPrototype =
     window.HTMLCanvasElement && window.HTMLCanvasElement.prototype
   var hasBlobConstructor =
     window.Blob &&
-    (function () {
+    (function() {
       try {
         return Boolean(new Blob())
       } catch (e) {
@@ -31,7 +31,7 @@
   var hasArrayBufferViewSupport =
     hasBlobConstructor &&
     window.Uint8Array &&
-    (function () {
+    (function() {
       try {
         return new Blob([new Uint8Array(100)]).size === 100
       } catch (e) {
@@ -49,7 +49,7 @@
     window.atob &&
     window.ArrayBuffer &&
     window.Uint8Array &&
-    function (dataURI) {
+    function(dataURI) {
       var matches,
         mediaType,
         isBase64,
@@ -95,9 +95,9 @@
     }
   if (window.HTMLCanvasElement && !CanvasPrototype.toBlob) {
     if (CanvasPrototype.mozGetAsFile) {
-      CanvasPrototype.toBlob = function (callback, type, quality) {
+      CanvasPrototype.toBlob = function(callback, type, quality) {
         var self = this
-        setTimeout(function () {
+        setTimeout(function() {
           if (quality && CanvasPrototype.toDataURL && dataURLtoBlob) {
             callback(dataURLtoBlob(self.toDataURL(type, quality)))
           } else {
@@ -106,16 +106,16 @@
         })
       }
     } else if (CanvasPrototype.toDataURL && dataURLtoBlob) {
-      CanvasPrototype.toBlob = function (callback, type, quality) {
+      CanvasPrototype.toBlob = function(callback, type, quality) {
         var self = this
-        setTimeout(function () {
+        setTimeout(function() {
           callback(dataURLtoBlob(self.toDataURL(type, quality)))
         })
       }
     }
   }
   if (typeof define === 'function' && define.amd) {
-    define(function () {
+    define(function() {
       return dataURLtoBlob
     })
   } else if (typeof module === 'object' && module.exports) {
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..810944c
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,2288 @@
+{
+  "name": "blueimp-canvas-to-blob",
+  "version": "3.14.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
+      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/highlight": {
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "@types/node": {
+      "version": "12.6.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.6.2.tgz",
+      "integrity": "sha512-gojym4tX0FWeV2gsW4Xmzo5wxGjXGm550oVUII7f7G5o4BV6c7DBdiG1RRQd+y1bvqRyYtPfMK85UM95vsapqQ==",
+      "dev": true
+    },
+    "acorn": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.2.0.tgz",
+      "integrity": "sha512-8oe72N3WPMjA+2zVG71Ia0nXZ8DpQH+QyyHO+p06jT8eg8FGG3FbcUIi8KziHlAfheJQZeoqbvq1mQSQHXKYLw==",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.1.tgz",
+      "integrity": "sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==",
+      "dev": true
+    },
+    "ajv": {
+      "version": "6.10.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+      "dev": true,
+      "requires": {
+        "fast-deep-equal": "^2.0.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
+      }
+    },
+    "ansi-escapes": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
+      "dev": true
+    },
+    "ansi-regex": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "requires": {
+        "color-convert": "^1.9.0"
+      }
+    },
+    "argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
+      "requires": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "array-find-index": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
+      "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
+      "dev": true
+    },
+    "arrify": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
+      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
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+      "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
+      "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
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+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
+      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
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+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
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+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
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+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
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+      "requires": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
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+    "callsites": {
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+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
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+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
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+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/camelcase-keys/-/camelcase-keys-4.2.0.tgz",
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+      "requires": {
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+      "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=",
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+      "requires": {
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+        "strip-ansi": "^4.0.0",
+        "wrap-ansi": "^2.0.0"
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+      "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
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+      "version": "1.0.3",
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+      "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
+      "dev": true
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+        "tree-kill": "^1.1.0",
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+      "dev": true
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+      "dev": true,
+      "requires": {
+        "nice-try": "^1.0.4",
+        "path-key": "^2.0.1",
+        "semver": "^5.5.0",
+        "shebang-command": "^1.2.0",
+        "which": "^1.2.9"
+      }
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+      "requires": {
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+      "dev": true
+    },
+    "trim-newlines": {
+      "version": "2.0.0",
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+      }
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+    "uglify-js": {
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+      "requires": {
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+        "source-map": "~0.6.1"
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+          "dev": true
+        }
+      }
+    },
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+      "version": "0.4.6",
+      "resolved": "https://registry.npmjs.org/union/-/union-0.4.6.tgz",
+      "integrity": "sha1-GY+9rrolTniLDvy2MLwR8kopWeA=",
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+      "dev": true,
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+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/url-join/-/url-join-2.0.5.tgz",
+      "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=",
+      "dev": true
+    },
+    "validate-npm-package-license": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
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+      "requires": {
+        "spdx-correct": "^3.0.0",
+        "spdx-expression-parse": "^3.0.0"
+      }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+      "dev": true
+    },
+    "wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
+    "wrap-ansi": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "dev": true,
+      "requires": {
+        "string-width": "^1.0.1",
+        "strip-ansi": "^3.0.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
+          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
+          "dev": true,
+          "requires": {
+            "number-is-nan": "^1.0.0"
+          }
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+        "string-width": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "dev": true,
+          "requires": {
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
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+          }
+        }
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "write": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/write/-/write-1.0.3.tgz",
+      "integrity": "sha512-/lg70HAjtkUgWPVZhZcm+T4hkL8Zbtp1nFNOn3lRrxnlv50SRBv7cR7RqR+GMsd3hUXy9hWBo4CHTbFTcOYwig==",
+      "dev": true,
+      "requires": {
+        "mkdirp": "^0.5.1"
+      }
+    },
+    "ws": {
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
+      "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
+      "dev": true,
+      "requires": {
+        "async-limiter": "~1.0.0"
+      }
+    },
+    "y18n": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "dev": true
+    },
+    "yargs": {
+      "version": "12.0.5",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
+      "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
+      "dev": true,
+      "requires": {
+        "cliui": "^4.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^1.0.1",
+        "os-locale": "^3.0.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^1.0.1",
+        "set-blocking": "^2.0.0",
+        "string-width": "^2.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^3.2.1 || ^4.0.0",
+        "yargs-parser": "^11.1.1"
+      }
+    },
+    "yargs-parser": {
+      "version": "11.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
+      "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index f0cf9fb..b42060b 100644
--- a/package.json
+++ b/package.json
@@ -20,23 +20,39 @@
     "url": "git://github.com/blueimp/JavaScript-Canvas-to-Blob.git"
   },
   "license": "MIT",
-  "main": "./js/canvas-to-blob.js",
   "devDependencies": {
-    "concurrently": "^3.5.0",
-    "eslint": "^4.5.0",
-    "eslint-config-standard": "^10.2.1",
-    "eslint-plugin-import": "^2.7.0",
-    "eslint-plugin-node": "^5.1.1",
-    "eslint-plugin-promise": "^3.5.0",
-    "eslint-plugin-standard": "^3.0.1",
-    "get-port-cli": "^1.1.0",
-    "http-server": "^0.10.0",
-    "mocha-chrome": "^0.1.1",
-    "prettier-eslint-cli": "^4.2.1",
-    "uglify-js": "^3.0.28"
+    "concurrently": "4",
+    "eslint": "6",
+    "eslint-config-blueimp": "1",
+    "eslint-config-prettier": "6",
+    "eslint-plugin-jsdoc": "15",
+    "eslint-plugin-prettier": "3",
+    "prettier": "1",
+    "get-port-cli": "2",
+    "http-server": "0",
+    "mocha-chrome": "2",
+    "uglify-js": "3"
+  },
+  "eslintConfig": {
+    "extends": [
+      "blueimp",
+      "plugin:jsdoc/recommended",
+      "plugin:prettier/recommended"
+    ],
+    "env": {
+      "browser": true
+    }
+  },
+  "eslintIgnore": [
+    "js/*.min.js",
+    "test/vendor"
+  ],
+  "prettier": {
+    "proseWrap": "always",
+    "semi": false,
+    "singleQuote": true
   },
   "scripts": {
-    "format": "prettier-eslint --no-semi --single-quote --write **/*.js",
     "lint": "eslint .",
     "serve": "http-server . -a 127.0.0.1 -p $PORT -s",
     "mocha": "mocha-chrome http://127.0.0.1:$PORT/test",
@@ -46,5 +62,10 @@
     "preversion": "npm test",
     "version": "npm run build && git add -A js",
     "postversion": "git push --tags origin master master:gh-pages && npm publish"
-  }
+  },
+  "files": [
+    "js/*.js",
+    "js/*.js.map"
+  ],
+  "main": "./js/canvas-to-blob.js"
 }
diff --git a/test/test.js b/test/test.js
index 2824db4..0c17819 100644
--- a/test/test.js
+++ b/test/test.js
@@ -9,14 +9,14 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global describe, it, Blob, chai, dataURLtoBlob */
+/* global describe, it, chai, dataURLtoBlob */
 
-;(function () {
+;(function() {
   'use strict'
 
   var expect = chai.expect
-  var canvasToBlob = function (canvas, callback, type, quality) {
-    setTimeout(function () {
+  var canvasToBlob = function(canvas, callback, type, quality) {
+    setTimeout(function() {
       callback(dataURLtoBlob(canvas.toDataURL(type, quality)))
     })
   }
@@ -29,14 +29,12 @@
   var imageUrl = 'data:image/gif;base64,' + b64Data
   var blob = dataURLtoBlob(imageUrl)
 
-  describe('canvas.toBlob', function () {
-    it('Converts a canvas element to a blob and passes it to the callback function', function (
-      done
-    ) {
+  describe('canvas.toBlob', function() {
+    it('Converts a canvas element to a blob and passes it to the callback function', function(done) {
       window.loadImage(
         blob,
-        function (canvas) {
-          canvasToBlob(canvas, function (newBlob) {
+        function(canvas) {
+          canvasToBlob(canvas, function(newBlob) {
             expect(newBlob).to.be.a.instanceOf(Blob)
             done()
           })
@@ -45,13 +43,13 @@
       )
     })
 
-    it('Converts a canvas element to a PNG blob', function (done) {
+    it('Converts a canvas element to a PNG blob', function(done) {
       window.loadImage(
         blob,
-        function (canvas) {
+        function(canvas) {
           canvasToBlob(
             canvas,
-            function (newBlob) {
+            function(newBlob) {
               expect(newBlob.type).to.equal('image/png')
               done()
             },
@@ -62,13 +60,13 @@
       )
     })
 
-    it('Converts a canvas element to a JPG blob', function (done) {
+    it('Converts a canvas element to a JPG blob', function(done) {
       window.loadImage(
         blob,
-        function (canvas) {
+        function(canvas) {
           canvasToBlob(
             canvas,
-            function (newBlob) {
+            function(newBlob) {
               expect(newBlob.type).to.equal('image/jpeg')
               done()
             },
@@ -79,12 +77,12 @@
       )
     })
 
-    it('Keeps the aspect ratio of the canvas image', function (done) {
+    it('Keeps the aspect ratio of the canvas image', function(done) {
       window.loadImage(
         blob,
-        function (canvas) {
-          canvasToBlob(canvas, function (newBlob) {
-            window.loadImage(newBlob, function (img) {
+        function(canvas) {
+          canvasToBlob(canvas, function(newBlob) {
+            window.loadImage(newBlob, function(img) {
               expect(img.width).to.equal(canvas.width)
               expect(img.height).to.equal(canvas.height)
               done()
@@ -95,14 +93,14 @@
       )
     })
 
-    it('Keeps the image data of the canvas image', function (done) {
+    it('Keeps the image data of the canvas image', function(done) {
       window.loadImage(
         blob,
-        function (canvas) {
-          canvasToBlob(canvas, function (newBlob) {
+        function(canvas) {
+          canvasToBlob(canvas, function(newBlob) {
             window.loadImage(
               newBlob,
-              function (newCanvas) {
+              function(newCanvas) {
                 var canvasData = canvas
                   .getContext('2d')
                   .getImageData(0, 0, canvas.width, canvas.height)

From 7d8d1effc326d5c5dd258f14d968e179abe4abdc Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 16:47:31 +0900
Subject: [PATCH 37/85] Rebuild minified bundle.

---
 js/canvas-to-blob.min.js     | 2 +-
 js/canvas-to-blob.min.js.map | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/canvas-to-blob.min.js b/js/canvas-to-blob.min.js
index 97fc875..cfff76c 100644
--- a/js/canvas-to-blob.min.js
+++ b/js/canvas-to-blob.min.js
@@ -1,2 +1,2 @@
-!function(t){"use strict";var e=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,o=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),n=o&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),r=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,a=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,i=(o||r)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,i,l,u,c,f,b,d,B;if(!(e=t.match(a)))throw new Error("invalid data URI");for(i=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),l=!!e[4],u=t.slice(e[0].length),c=l?atob(u):decodeURIComponent(u),f=new ArrayBuffer(c.length),b=new Uint8Array(f),d=0;d<c.length;d+=1)b[d]=c.charCodeAt(d);return o?new Blob([n?b:f],{type:i}):((B=new r).append(f),B.getBlob(i))};t.HTMLCanvasElement&&!e.toBlob&&(e.mozGetAsFile?e.toBlob=function(t,o,n){var r=this;setTimeout(function(){t(n&&e.toDataURL&&i?i(r.toDataURL(o,n)):r.mozGetAsFile("blob",o))})}:e.toDataURL&&i&&(e.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(i(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return i}):"object"==typeof module&&module.exports?module.exports=i:t.dataURLtoBlob=i}(window);
+!function(t){"use strict";var r=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,f=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),b=f&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),d=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,B=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,a=(f||d)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,r,a,i,l,u,c;if(!(e=t.match(B)))throw new Error("invalid data URI");for(o=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),n=!!e[4],r=t.slice(e[0].length),a=n?atob(r):decodeURIComponent(r),i=new ArrayBuffer(a.length),l=new Uint8Array(i),u=0;u<a.length;u+=1)l[u]=a.charCodeAt(u);return f?new Blob([b?l:i],{type:o}):((c=new d).append(i),c.getBlob(o))};t.HTMLCanvasElement&&!r.toBlob&&(r.mozGetAsFile?r.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&r.toDataURL&&a?t(a(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:r.toDataURL&&a&&(r.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(a(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return a}):"object"==typeof module&&module.exports?module.exports=a:t.dataURLtoBlob=a}(window);
 //# sourceMappingURL=canvas-to-blob.min.js.map
\ No newline at end of file
diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 9f29bce..11b7e54 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,GACV,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,MAAM,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,MAAMG,EAA4BkB,EAAWD,IACtDU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WAEPJ,EADEC,GAAWxC,EAAgB4C,WAAa7B,EACjCA,EAAc0B,EAAKG,UAAUV,EAAMM,IAEnCC,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EA3G1B,CA6GEhB"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBC,SAAUA,GACT,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAASU,GACP,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,KAAK,CAACG,EAA4BkB,EAAWD,GAAc,CACpEU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAASE,EAAUL,EAAMM,GAChD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAASE,EAAUL,EAAMM,GAChD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EA3G1B,CA6GEhB"}
\ No newline at end of file

From 2053613b31f6620bf3328c74e0e02fee217de07d Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 18:10:55 +0900
Subject: [PATCH 38/85] Update test vendor dependencies.

---
 test/vendor/chai.js             |  8682 ++++++++++++++----
 test/vendor/load-image-scale.js |    83 +-
 test/vendor/load-image.js       |   103 +-
 test/vendor/mocha.js            | 14544 ++++++++++++++++++------------
 4 files changed, 15385 insertions(+), 8027 deletions(-)

diff --git a/test/vendor/chai.js b/test/vendor/chai.js
index bbe4c4a..39429c5 100644
--- a/test/vendor/chai.js
+++ b/test/vendor/chai.js
@@ -1,4 +1,4 @@
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.chai = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.chai = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
 module.exports = require('./lib/chai');
 
 },{"./lib/chai":2}],2:[function(require,module,exports){
@@ -8,14 +8,13 @@ module.exports = require('./lib/chai');
  * MIT Licensed
  */
 
-var used = []
-  , exports = module.exports = {};
+var used = [];
 
 /*!
  * Chai version
  */
 
-exports.version = '3.5.0';
+exports.version = '4.2.0';
 
 /*!
  * Assertion Error
@@ -32,7 +31,7 @@ var util = require('./chai/utils');
 /**
  * # .use(function)
  *
- * Provides a way to extend the internals of Chai
+ * Provides a way to extend the internals of Chai.
  *
  * @param {Function}
  * @returns {this} for chaining
@@ -41,11 +40,11 @@ var util = require('./chai/utils');
 
 exports.use = function (fn) {
   if (!~used.indexOf(fn)) {
-    fn(this, util);
+    fn(exports, util);
     used.push(fn);
   }
 
-  return this;
+  return exports;
 };
 
 /*!
@@ -96,7 +95,7 @@ exports.use(should);
 var assert = require('./chai/interface/assert');
 exports.use(assert);
 
-},{"./chai/assertion":3,"./chai/config":4,"./chai/core/assertions":5,"./chai/interface/assert":6,"./chai/interface/expect":7,"./chai/interface/should":8,"./chai/utils":22,"assertion-error":30}],3:[function(require,module,exports){
+},{"./chai/assertion":3,"./chai/config":4,"./chai/core/assertions":5,"./chai/interface/assert":6,"./chai/interface/expect":7,"./chai/interface/should":8,"./chai/utils":22,"assertion-error":33}],3:[function(require,module,exports){
 /*!
  * chai
  * http://chaijs.com
@@ -125,13 +124,46 @@ module.exports = function (_chai, util) {
    *
    * Creates object for chaining.
    *
+   * `Assertion` objects contain metadata in the form of flags. Three flags can
+   * be assigned during instantiation by passing arguments to this constructor:
+   *
+   * - `object`: This flag contains the target of the assertion. For example, in
+   *   the assertion `expect(numKittens).to.equal(7);`, the `object` flag will
+   *   contain `numKittens` so that the `equal` assertion can reference it when
+   *   needed.
+   *
+   * - `message`: This flag contains an optional custom error message to be
+   *   prepended to the error message that's generated by the assertion when it
+   *   fails.
+   *
+   * - `ssfi`: This flag stands for "start stack function indicator". It
+   *   contains a function reference that serves as the starting point for
+   *   removing frames from the stack trace of the error that's created by the
+   *   assertion when it fails. The goal is to provide a cleaner stack trace to
+   *   end users by removing Chai's internal functions. Note that it only works
+   *   in environments that support `Error.captureStackTrace`, and only when
+   *   `Chai.config.includeStack` hasn't been set to `false`.
+   *
+   * - `lockSsfi`: This flag controls whether or not the given `ssfi` flag
+   *   should retain its current value, even as assertions are chained off of
+   *   this object. This is usually set to `true` when creating a new assertion
+   *   from within another assertion. It's also temporarily set to `true` before
+   *   an overwritten assertion gets called by the overwriting assertion.
+   *
+   * @param {Mixed} obj target of the assertion
+   * @param {String} msg (optional) custom error message
+   * @param {Function} ssfi (optional) starting point for removing stack frames
+   * @param {Boolean} lockSsfi (optional) whether or not the ssfi flag is locked
    * @api private
    */
 
-  function Assertion (obj, msg, stack) {
-    flag(this, 'ssfi', stack || arguments.callee);
+  function Assertion (obj, msg, ssfi, lockSsfi) {
+    flag(this, 'ssfi', ssfi || Assertion);
+    flag(this, 'lockSsfi', lockSsfi);
     flag(this, 'object', obj);
     flag(this, 'message', msg);
+
+    return util.proxify(this);
   }
 
   Object.defineProperty(Assertion, 'includeStack', {
@@ -197,12 +229,13 @@ module.exports = function (_chai, util) {
 
   Assertion.prototype.assert = function (expr, msg, negateMsg, expected, _actual, showDiff) {
     var ok = util.test(this, arguments);
-    if (true !== showDiff) showDiff = false;
+    if (false !== showDiff) showDiff = true;
+    if (undefined === expected && undefined === _actual) showDiff = false;
     if (true !== config.showDiff) showDiff = false;
 
     if (!ok) {
-      var msg = util.getMessage(this, arguments)
-        , actual = util.getActual(this, arguments);
+      msg = util.getMessage(this, arguments);
+      var actual = util.getActual(this, arguments);
       throw new AssertionError(msg, {
           actual: actual
         , expected: expected
@@ -245,7 +278,7 @@ module.exports = {
    * @api public
    */
 
-   includeStack: false,
+  includeStack: false,
 
   /**
    * ### config.showDiff
@@ -282,8 +315,47 @@ module.exports = {
    * @api public
    */
 
-  truncateThreshold: 40
+  truncateThreshold: 40,
+
+  /**
+   * ### config.useProxy
+   *
+   * User configurable property, defines if chai will use a Proxy to throw
+   * an error when a non-existent property is read, which protects users
+   * from typos when using property-based assertions.
+   *
+   * Set it to false if you want to disable this feature.
+   *
+   *     chai.config.useProxy = false;  // disable use of Proxy
+   *
+   * This feature is automatically disabled regardless of this config value
+   * in environments that don't support proxies.
+   *
+   * @param {Boolean}
+   * @api public
+   */
+
+  useProxy: true,
+
+  /**
+   * ### config.proxyExcludedKeys
+   *
+   * User configurable property, defines which properties should be ignored
+   * instead of throwing an error if they do not exist on the assertion.
+   * This is only applied if the environment Chai is running in supports proxies and
+   * if the `useProxy` configuration setting is enabled.
+   * By default, `then` and `inspect` will not throw an error if they do not exist on the
+   * assertion object because the `.inspect` property is read by `util.inspect` (for example, when
+   * using `console.log` on the assertion object) and `.then` is necessary for promise type-checking.
+   *
+   *     // By default these keys will not throw an error if they do not exist on the assertion object
+   *     chai.config.proxyExcludedKeys = ['then', 'inspect'];
+   *
+   * @param {Array}
+   * @api public
+   */
 
+  proxyExcludedKeys: ['then', 'catch', 'inspect', 'toJSON']
 };
 
 },{}],5:[function(require,module,exports){
@@ -296,16 +368,14 @@ module.exports = {
 
 module.exports = function (chai, _) {
   var Assertion = chai.Assertion
-    , toString = Object.prototype.toString
+    , AssertionError = chai.AssertionError
     , flag = _.flag;
 
   /**
    * ### Language Chains
    *
-   * The following are provided as chainable getters to
-   * improve the readability of your assertions. They
-   * do not provide testing capabilities unless they
-   * have been overwritten by a plugin.
+   * The following are provided as chainable getters to improve the readability
+   * of your assertions.
    *
    * **Chains**
    *
@@ -322,30 +392,39 @@ module.exports = function (chai, _) {
    * - at
    * - of
    * - same
+   * - but
+   * - does
+   * - still
    *
    * @name language chains
    * @namespace BDD
    * @api public
    */
 
-  [ 'to', 'be', 'been'
-  , 'is', 'and', 'has', 'have'
-  , 'with', 'that', 'which', 'at'
-  , 'of', 'same' ].forEach(function (chain) {
-    Assertion.addProperty(chain, function () {
-      return this;
-    });
+  [ 'to', 'be', 'been', 'is'
+  , 'and', 'has', 'have', 'with'
+  , 'that', 'which', 'at', 'of'
+  , 'same', 'but', 'does', 'still' ].forEach(function (chain) {
+    Assertion.addProperty(chain);
   });
 
   /**
    * ### .not
    *
-   * Negates any of assertions following in the chain.
+   * Negates all assertions that follow in the chain.
    *
-   *     expect(foo).to.not.equal('bar');
-   *     expect(goodFn).to.not.throw(Error);
-   *     expect({ foo: 'baz' }).to.have.property('foo')
-   *       .and.not.equal('bar');
+   *     expect(function () {}).to.not.throw();
+   *     expect({a: 1}).to.not.have.property('b');
+   *     expect([1, 2]).to.be.an('array').that.does.not.include(3);
+   *
+   * Just because you can negate any assertion with `.not` doesn't mean you
+   * should. With great power comes great responsibility. It's often best to
+   * assert that the one expected output was produced, rather than asserting
+   * that one of countless unexpected outputs wasn't produced. See individual
+   * assertions for specific guidance.
+   *
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(2).to.not.equal(1); // Not recommended
    *
    * @name not
    * @namespace BDD
@@ -359,18 +438,34 @@ module.exports = function (chai, _) {
   /**
    * ### .deep
    *
-   * Sets the `deep` flag, later used by the `equal` and
-   * `property` assertions.
+   * Causes all `.equal`, `.include`, `.members`, `.keys`, and `.property`
+   * assertions that follow in the chain to use deep equality instead of strict
+   * (`===`) equality. See the `deep-eql` project page for info on the deep
+   * equality algorithm: https://github.com/chaijs/deep-eql.
+   *
+   *     // Target object deeply (but not strictly) equals `{a: 1}`
+   *     expect({a: 1}).to.deep.equal({a: 1});
+   *     expect({a: 1}).to.not.equal({a: 1});
+   *
+   *     // Target array deeply (but not strictly) includes `{a: 1}`
+   *     expect([{a: 1}]).to.deep.include({a: 1});
+   *     expect([{a: 1}]).to.not.include({a: 1});
    *
-   *     expect(foo).to.deep.equal({ bar: 'baz' });
-   *     expect({ foo: { bar: { baz: 'quux' } } })
-   *       .to.have.deep.property('foo.bar.baz', 'quux');
+   *     // Target object deeply (but not strictly) includes `x: {a: 1}`
+   *     expect({x: {a: 1}}).to.deep.include({x: {a: 1}});
+   *     expect({x: {a: 1}}).to.not.include({x: {a: 1}});
    *
-   * `.deep.property` special characters can be escaped
-   * by adding two slashes before the `.` or `[]`.
+   *     // Target array deeply (but not strictly) has member `{a: 1}`
+   *     expect([{a: 1}]).to.have.deep.members([{a: 1}]);
+   *     expect([{a: 1}]).to.not.have.members([{a: 1}]);
    *
-   *     var deepCss = { '.link': { '[target]': 42 }};
-   *     expect(deepCss).to.have.deep.property('\\.link.\\[target\\]', 42);
+   *     // Target set deeply (but not strictly) has key `{a: 1}`
+   *     expect(new Set([{a: 1}])).to.have.deep.keys([{a: 1}]);
+   *     expect(new Set([{a: 1}])).to.not.have.keys([{a: 1}]);
+   *
+   *     // Target object deeply (but not strictly) has property `x: {a: 1}`
+   *     expect({x: {a: 1}}).to.have.deep.property('x', {a: 1});
+   *     expect({x: {a: 1}}).to.not.have.property('x', {a: 1});
    *
    * @name deep
    * @namespace BDD
@@ -381,13 +476,92 @@ module.exports = function (chai, _) {
     flag(this, 'deep', true);
   });
 
+  /**
+   * ### .nested
+   *
+   * Enables dot- and bracket-notation in all `.property` and `.include`
+   * assertions that follow in the chain.
+   *
+   *     expect({a: {b: ['x', 'y']}}).to.have.nested.property('a.b[1]');
+   *     expect({a: {b: ['x', 'y']}}).to.nested.include({'a.b[1]': 'y'});
+   *
+   * If `.` or `[]` are part of an actual property name, they can be escaped by
+   * adding two backslashes before them.
+   *
+   *     expect({'.a': {'[b]': 'x'}}).to.have.nested.property('\\.a.\\[b\\]');
+   *     expect({'.a': {'[b]': 'x'}}).to.nested.include({'\\.a.\\[b\\]': 'x'});
+   *
+   * `.nested` cannot be combined with `.own`.
+   *
+   * @name nested
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('nested', function () {
+    flag(this, 'nested', true);
+  });
+
+  /**
+   * ### .own
+   *
+   * Causes all `.property` and `.include` assertions that follow in the chain
+   * to ignore inherited properties.
+   *
+   *     Object.prototype.b = 2;
+   *
+   *     expect({a: 1}).to.have.own.property('a');
+   *     expect({a: 1}).to.have.property('b');
+   *     expect({a: 1}).to.not.have.own.property('b');
+   *
+   *     expect({a: 1}).to.own.include({a: 1});
+   *     expect({a: 1}).to.include({b: 2}).but.not.own.include({b: 2});
+   *
+   * `.own` cannot be combined with `.nested`.
+   *
+   * @name own
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('own', function () {
+    flag(this, 'own', true);
+  });
+
+  /**
+   * ### .ordered
+   *
+   * Causes all `.members` assertions that follow in the chain to require that
+   * members be in the same order.
+   *
+   *     expect([1, 2]).to.have.ordered.members([1, 2])
+   *       .but.not.have.ordered.members([2, 1]);
+   *
+   * When `.include` and `.ordered` are combined, the ordering begins at the
+   * start of both arrays.
+   *
+   *     expect([1, 2, 3]).to.include.ordered.members([1, 2])
+   *       .but.not.include.ordered.members([2, 3]);
+   *
+   * @name ordered
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('ordered', function () {
+    flag(this, 'ordered', true);
+  });
+
   /**
    * ### .any
    *
-   * Sets the `any` flag, (opposite of the `all` flag)
-   * later used in the `keys` assertion.
+   * Causes all `.keys` assertions that follow in the chain to only require that
+   * the target have at least one of the given keys. This is the opposite of
+   * `.all`, which requires that the target have all of the given keys.
+   *
+   *     expect({a: 1, b: 2}).to.not.have.any.keys('c', 'd');
    *
-   *     expect(foo).to.have.any.keys('bar', 'baz');
+   * See the `.keys` doc for guidance on when to use `.any` or `.all`.
    *
    * @name any
    * @namespace BDD
@@ -396,17 +570,23 @@ module.exports = function (chai, _) {
 
   Assertion.addProperty('any', function () {
     flag(this, 'any', true);
-    flag(this, 'all', false)
+    flag(this, 'all', false);
   });
 
-
   /**
    * ### .all
    *
-   * Sets the `all` flag (opposite of the `any` flag)
-   * later used by the `keys` assertion.
+   * Causes all `.keys` assertions that follow in the chain to require that the
+   * target have all of the given keys. This is the opposite of `.any`, which
+   * only requires that the target have at least one of the given keys.
+   *
+   *     expect({a: 1, b: 2}).to.have.all.keys('a', 'b');
    *
-   *     expect(foo).to.have.all.keys('bar', 'baz');
+   * Note that `.all` is used by default when neither `.all` nor `.any` are
+   * added earlier in the chain. However, it's often best to add `.all` anyway
+   * because it improves readability.
+   *
+   * See the `.keys` doc for guidance on when to use `.any` or `.all`.
    *
    * @name all
    * @namespace BDD
@@ -419,32 +599,61 @@ module.exports = function (chai, _) {
   });
 
   /**
-   * ### .a(type)
+   * ### .a(type[, msg])
    *
-   * The `a` and `an` assertions are aliases that can be
-   * used either as language chains or to assert a value's
-   * type.
+   * Asserts that the target's type is equal to the given string `type`. Types
+   * are case insensitive. See the `type-detect` project page for info on the
+   * type detection algorithm: https://github.com/chaijs/type-detect.
    *
-   *     // typeof
-   *     expect('test').to.be.a('string');
-   *     expect({ foo: 'bar' }).to.be.an('object');
+   *     expect('foo').to.be.a('string');
+   *     expect({a: 1}).to.be.an('object');
    *     expect(null).to.be.a('null');
    *     expect(undefined).to.be.an('undefined');
    *     expect(new Error).to.be.an('error');
-   *     expect(new Promise).to.be.a('promise');
-   *     expect(new Float32Array()).to.be.a('float32array');
+   *     expect(Promise.resolve()).to.be.a('promise');
+   *     expect(new Float32Array).to.be.a('float32array');
    *     expect(Symbol()).to.be.a('symbol');
    *
-   *     // es6 overrides
-   *     expect({[Symbol.toStringTag]:()=>'foo'}).to.be.a('foo');
+   * `.a` supports objects that have a custom type set via `Symbol.toStringTag`.
+   *
+   *     var myObj = {
+   *       [Symbol.toStringTag]: 'myCustomType'
+   *     };
+   *
+   *     expect(myObj).to.be.a('myCustomType').but.not.an('object');
+   *
+   * It's often best to use `.a` to check a target's type before making more
+   * assertions on the same target. That way, you avoid unexpected behavior from
+   * any assertion that does different things based on the target's type.
+   *
+   *     expect([1, 2, 3]).to.be.an('array').that.includes(2);
+   *     expect([]).to.be.an('array').that.is.empty;
    *
-   *     // language chain
-   *     expect(foo).to.be.an.instanceof(Foo);
+   * Add `.not` earlier in the chain to negate `.a`. However, it's often best to
+   * assert that the target is the expected type, rather than asserting that it
+   * isn't one of many unexpected types.
+   *
+   *     expect('foo').to.be.a('string'); // Recommended
+   *     expect('foo').to.not.be.an('array'); // Not recommended
+   *
+   * `.a` accepts an optional `msg` argument which is a custom error message to
+   * show when the assertion fails. The message can also be given as the second
+   * argument to `expect`.
+   *
+   *     expect(1).to.be.a('string', 'nooo why fail??');
+   *     expect(1, 'nooo why fail??').to.be.a('string');
+   *
+   * `.a` can also be used as a language chain to improve the readability of
+   * your assertions.
+   *
+   *     expect({b: 2}).to.have.a.property('b');
+   *
+   * The alias `.an` can be used interchangeably with `.a`.
    *
    * @name a
    * @alias an
    * @param {String} type
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -456,7 +665,7 @@ module.exports = function (chai, _) {
       , article = ~[ 'a', 'e', 'i', 'o', 'u' ].indexOf(type.charAt(0)) ? 'an ' : 'a ';
 
     this.assert(
-        type === _.type(obj)
+        type === _.type(obj).toLowerCase()
       , 'expected #{this} to be ' + article + type
       , 'expected #{this} not to be ' + article + type
     );
@@ -466,60 +675,272 @@ module.exports = function (chai, _) {
   Assertion.addChainableMethod('a', an);
 
   /**
-   * ### .include(value)
+   * ### .include(val[, msg])
+   *
+   * When the target is a string, `.include` asserts that the given string `val`
+   * is a substring of the target.
+   *
+   *     expect('foobar').to.include('foo');
+   *
+   * When the target is an array, `.include` asserts that the given `val` is a
+   * member of the target.
+   *
+   *     expect([1, 2, 3]).to.include(2);
+   *
+   * When the target is an object, `.include` asserts that the given object
+   * `val`'s properties are a subset of the target's properties.
+   *
+   *     expect({a: 1, b: 2, c: 3}).to.include({a: 1, b: 2});
+   *
+   * When the target is a Set or WeakSet, `.include` asserts that the given `val` is a
+   * member of the target. SameValueZero equality algorithm is used.
+   *
+   *     expect(new Set([1, 2])).to.include(2);
+   *
+   * When the target is a Map, `.include` asserts that the given `val` is one of
+   * the values of the target. SameValueZero equality algorithm is used.
+   *
+   *     expect(new Map([['a', 1], ['b', 2]])).to.include(2);
+   *
+   * Because `.include` does different things based on the target's type, it's
+   * important to check the target's type before using `.include`. See the `.a`
+   * doc for info on testing a target's type.
+   *
+   *     expect([1, 2, 3]).to.be.an('array').that.includes(2);
+   *
+   * By default, strict (`===`) equality is used to compare array members and
+   * object properties. Add `.deep` earlier in the chain to use deep equality
+   * instead (WeakSet targets are not supported). See the `deep-eql` project
+   * page for info on the deep equality algorithm: https://github.com/chaijs/deep-eql.
+   *
+   *     // Target array deeply (but not strictly) includes `{a: 1}`
+   *     expect([{a: 1}]).to.deep.include({a: 1});
+   *     expect([{a: 1}]).to.not.include({a: 1});
+   *
+   *     // Target object deeply (but not strictly) includes `x: {a: 1}`
+   *     expect({x: {a: 1}}).to.deep.include({x: {a: 1}});
+   *     expect({x: {a: 1}}).to.not.include({x: {a: 1}});
+   *
+   * By default, all of the target's properties are searched when working with
+   * objects. This includes properties that are inherited and/or non-enumerable.
+   * Add `.own` earlier in the chain to exclude the target's inherited
+   * properties from the search.
+   *
+   *     Object.prototype.b = 2;
    *
-   * The `include` and `contain` assertions can be used as either property
-   * based language chains or as methods to assert the inclusion of an object
-   * in an array or a substring in a string. When used as language chains,
-   * they toggle the `contains` flag for the `keys` assertion.
+   *     expect({a: 1}).to.own.include({a: 1});
+   *     expect({a: 1}).to.include({b: 2}).but.not.own.include({b: 2});
    *
-   *     expect([1,2,3]).to.include(2);
-   *     expect('foobar').to.contain('foo');
-   *     expect({ foo: 'bar', hello: 'universe' }).to.include.keys('foo');
+   * Note that a target object is always only searched for `val`'s own
+   * enumerable properties.
+   *
+   * `.deep` and `.own` can be combined.
+   *
+   *     expect({a: {b: 2}}).to.deep.own.include({a: {b: 2}});
+   *
+   * Add `.nested` earlier in the chain to enable dot- and bracket-notation when
+   * referencing nested properties.
+   *
+   *     expect({a: {b: ['x', 'y']}}).to.nested.include({'a.b[1]': 'y'});
+   *
+   * If `.` or `[]` are part of an actual property name, they can be escaped by
+   * adding two backslashes before them.
+   *
+   *     expect({'.a': {'[b]': 2}}).to.nested.include({'\\.a.\\[b\\]': 2});
+   *
+   * `.deep` and `.nested` can be combined.
+   *
+   *     expect({a: {b: [{c: 3}]}}).to.deep.nested.include({'a.b[0]': {c: 3}});
+   *
+   * `.own` and `.nested` cannot be combined.
+   *
+   * Add `.not` earlier in the chain to negate `.include`.
+   *
+   *     expect('foobar').to.not.include('taco');
+   *     expect([1, 2, 3]).to.not.include(4);
+   *
+   * However, it's dangerous to negate `.include` when the target is an object.
+   * The problem is that it creates uncertain expectations by asserting that the
+   * target object doesn't have all of `val`'s key/value pairs but may or may
+   * not have some of them. It's often best to identify the exact output that's
+   * expected, and then write an assertion that only accepts that exact output.
+   *
+   * When the target object isn't even expected to have `val`'s keys, it's
+   * often best to assert exactly that.
+   *
+   *     expect({c: 3}).to.not.have.any.keys('a', 'b'); // Recommended
+   *     expect({c: 3}).to.not.include({a: 1, b: 2}); // Not recommended
+   *
+   * When the target object is expected to have `val`'s keys, it's often best to
+   * assert that each of the properties has its expected value, rather than
+   * asserting that each property doesn't have one of many unexpected values.
+   *
+   *     expect({a: 3, b: 4}).to.include({a: 3, b: 4}); // Recommended
+   *     expect({a: 3, b: 4}).to.not.include({a: 1, b: 2}); // Not recommended
+   *
+   * `.include` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect([1, 2, 3]).to.include(4, 'nooo why fail??');
+   *     expect([1, 2, 3], 'nooo why fail??').to.include(4);
+   *
+   * `.include` can also be used as a language chain, causing all `.members` and
+   * `.keys` assertions that follow in the chain to require the target to be a
+   * superset of the expected set, rather than an identical set. Note that
+   * `.members` ignores duplicates in the subset when `.include` is added.
+   *
+   *     // Target object's keys are a superset of ['a', 'b'] but not identical
+   *     expect({a: 1, b: 2, c: 3}).to.include.all.keys('a', 'b');
+   *     expect({a: 1, b: 2, c: 3}).to.not.have.all.keys('a', 'b');
+   *
+   *     // Target array is a superset of [1, 2] but not identical
+   *     expect([1, 2, 3]).to.include.members([1, 2]);
+   *     expect([1, 2, 3]).to.not.have.members([1, 2]);
+   *
+   *     // Duplicates in the subset are ignored
+   *     expect([1, 2, 3]).to.include.members([1, 2, 2, 2]);
+   *
+   * Note that adding `.any` earlier in the chain causes the `.keys` assertion
+   * to ignore `.include`.
+   *
+   *     // Both assertions are identical
+   *     expect({a: 1}).to.include.any.keys('a', 'b');
+   *     expect({a: 1}).to.have.any.keys('a', 'b');
+   *
+   * The aliases `.includes`, `.contain`, and `.contains` can be used
+   * interchangeably with `.include`.
    *
    * @name include
    * @alias contain
    * @alias includes
    * @alias contains
-   * @param {Object|String|Number} obj
-   * @param {String} message _optional_
+   * @param {Mixed} val
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
+  function SameValueZero(a, b) {
+    return (_.isNaN(a) && _.isNaN(b)) || a === b;
+  }
+
   function includeChainingBehavior () {
     flag(this, 'contains', true);
   }
 
   function include (val, msg) {
-    _.expectTypes(this, ['array', 'object', 'string']);
-
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    var expected = false;
 
-    if (_.type(obj) === 'array' && _.type(val) === 'object') {
-      for (var i in obj) {
-        if (_.eql(obj[i], val)) {
-          expected = true;
-          break;
+    var obj = flag(this, 'object')
+      , objType = _.type(obj).toLowerCase()
+      , flagMsg = flag(this, 'message')
+      , negate = flag(this, 'negate')
+      , ssfi = flag(this, 'ssfi')
+      , isDeep = flag(this, 'deep')
+      , descriptor = isDeep ? 'deep ' : '';
+
+    flagMsg = flagMsg ? flagMsg + ': ' : '';
+
+    var included = false;
+
+    switch (objType) {
+      case 'string':
+        included = obj.indexOf(val) !== -1;
+        break;
+
+      case 'weakset':
+        if (isDeep) {
+          throw new AssertionError(
+            flagMsg + 'unable to use .deep.include with WeakSet',
+            undefined,
+            ssfi
+          );
+        }
+
+        included = obj.has(val);
+        break;
+
+      case 'map':
+        var isEql = isDeep ? _.eql : SameValueZero;
+        obj.forEach(function (item) {
+          included = included || isEql(item, val);
+        });
+        break;
+
+      case 'set':
+        if (isDeep) {
+          obj.forEach(function (item) {
+            included = included || _.eql(item, val);
+          });
+        } else {
+          included = obj.has(val);
+        }
+        break;
+
+      case 'array':
+        if (isDeep) {
+          included = obj.some(function (item) {
+            return _.eql(item, val);
+          })
+        } else {
+          included = obj.indexOf(val) !== -1;
+        }
+        break;
+
+      default:
+        // This block is for asserting a subset of properties in an object.
+        // `_.expectTypes` isn't used here because `.include` should work with
+        // objects with a custom `@@toStringTag`.
+        if (val !== Object(val)) {
+          throw new AssertionError(
+            flagMsg + 'object tested must be an array, a map, an object,'
+              + ' a set, a string, or a weakset, but ' + objType + ' given',
+            undefined,
+            ssfi
+          );
+        }
+
+        var props = Object.keys(val)
+          , firstErr = null
+          , numErrs = 0;
+
+        props.forEach(function (prop) {
+          var propAssertion = new Assertion(obj);
+          _.transferFlags(this, propAssertion, true);
+          flag(propAssertion, 'lockSsfi', true);
+
+          if (!negate || props.length === 1) {
+            propAssertion.property(prop, val[prop]);
+            return;
+          }
+
+          try {
+            propAssertion.property(prop, val[prop]);
+          } catch (err) {
+            if (!_.checkError.compatibleConstructor(err, AssertionError)) {
+              throw err;
+            }
+            if (firstErr === null) firstErr = err;
+            numErrs++;
+          }
+        }, this);
+
+        // When validating .not.include with multiple properties, we only want
+        // to throw an assertion error if all of the properties are included,
+        // in which case we throw the first property assertion error that we
+        // encountered.
+        if (negate && props.length > 1 && numErrs === props.length) {
+          throw firstErr;
         }
-      }
-    } else if (_.type(val) === 'object') {
-      if (!flag(this, 'negate')) {
-        for (var k in val) new Assertion(obj).property(k, val[k]);
         return;
-      }
-      var subset = {};
-      for (var k in val) subset[k] = obj[k];
-      expected = _.eql(subset, val);
-    } else {
-      expected = (obj != undefined) && ~obj.indexOf(val);
     }
+
+    // Assert inclusion in collection or substring in a string.
     this.assert(
-        expected
-      , 'expected #{this} to include ' + _.inspect(val)
-      , 'expected #{this} to not include ' + _.inspect(val));
+      included
+      , 'expected #{this} to ' + descriptor + 'include ' + _.inspect(val)
+      , 'expected #{this} to not ' + descriptor + 'include ' + _.inspect(val));
   }
 
   Assertion.addChainableMethod('include', include, includeChainingBehavior);
@@ -530,13 +951,33 @@ module.exports = function (chai, _) {
   /**
    * ### .ok
    *
-   * Asserts that the target is truthy.
+   * Asserts that the target is a truthy value (considered `true` in boolean context).
+   * However, it's often best to assert that the target is strictly (`===`) or
+   * deeply equal to its expected value.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.be.ok; // Not recommended
+   *
+   *     expect(true).to.be.true; // Recommended
+   *     expect(true).to.be.ok; // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.ok`.
    *
-   *     expect('everything').to.be.ok;
-   *     expect(1).to.be.ok;
-   *     expect(false).to.not.be.ok;
-   *     expect(undefined).to.not.be.ok;
-   *     expect(null).to.not.be.ok;
+   *     expect(0).to.equal(0); // Recommended
+   *     expect(0).to.not.be.ok; // Not recommended
+   *
+   *     expect(false).to.be.false; // Recommended
+   *     expect(false).to.not.be.ok; // Not recommended
+   *
+   *     expect(null).to.be.null; // Recommended
+   *     expect(null).to.not.be.ok; // Not recommended
+   *
+   *     expect(undefined).to.be.undefined; // Recommended
+   *     expect(undefined).to.not.be.ok; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(false, 'nooo why fail??').to.be.ok;
    *
    * @name ok
    * @namespace BDD
@@ -553,10 +994,23 @@ module.exports = function (chai, _) {
   /**
    * ### .true
    *
-   * Asserts that the target is `true`.
+   * Asserts that the target is strictly (`===`) equal to `true`.
    *
    *     expect(true).to.be.true;
-   *     expect(1).to.not.be.true;
+   *
+   * Add `.not` earlier in the chain to negate `.true`. However, it's often best
+   * to assert that the target is equal to its expected value, rather than not
+   * equal to `true`.
+   *
+   *     expect(false).to.be.false; // Recommended
+   *     expect(false).to.not.be.true; // Not recommended
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.true; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(false, 'nooo why fail??').to.be.true;
    *
    * @name true
    * @namespace BDD
@@ -568,17 +1022,30 @@ module.exports = function (chai, _) {
         true === flag(this, 'object')
       , 'expected #{this} to be true'
       , 'expected #{this} to be false'
-      , this.negate ? false : true
+      , flag(this, 'negate') ? false : true
     );
   });
 
   /**
    * ### .false
    *
-   * Asserts that the target is `false`.
+   * Asserts that the target is strictly (`===`) equal to `false`.
    *
    *     expect(false).to.be.false;
-   *     expect(0).to.not.be.false;
+   *
+   * Add `.not` earlier in the chain to negate `.false`. However, it's often
+   * best to assert that the target is equal to its expected value, rather than
+   * not equal to `false`.
+   *
+   *     expect(true).to.be.true; // Recommended
+   *     expect(true).to.not.be.false; // Not recommended
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.false; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(true, 'nooo why fail??').to.be.false;
    *
    * @name false
    * @namespace BDD
@@ -590,17 +1057,27 @@ module.exports = function (chai, _) {
         false === flag(this, 'object')
       , 'expected #{this} to be false'
       , 'expected #{this} to be true'
-      , this.negate ? true : false
+      , flag(this, 'negate') ? true : false
     );
   });
 
   /**
    * ### .null
    *
-   * Asserts that the target is `null`.
+   * Asserts that the target is strictly (`===`) equal to `null`.
    *
    *     expect(null).to.be.null;
-   *     expect(undefined).to.not.be.null;
+   *
+   * Add `.not` earlier in the chain to negate `.null`. However, it's often best
+   * to assert that the target is equal to its expected value, rather than not
+   * equal to `null`.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.null; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(42, 'nooo why fail??').to.be.null;
    *
    * @name null
    * @namespace BDD
@@ -618,10 +1095,20 @@ module.exports = function (chai, _) {
   /**
    * ### .undefined
    *
-   * Asserts that the target is `undefined`.
+   * Asserts that the target is strictly (`===`) equal to `undefined`.
    *
    *     expect(undefined).to.be.undefined;
-   *     expect(null).to.not.be.undefined;
+   *
+   * Add `.not` earlier in the chain to negate `.undefined`. However, it's often
+   * best to assert that the target is equal to its expected value, rather than
+   * not equal to `undefined`.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.undefined; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(42, 'nooo why fail??').to.be.undefined;
    *
    * @name undefined
    * @namespace BDD
@@ -638,10 +1125,21 @@ module.exports = function (chai, _) {
 
   /**
    * ### .NaN
-   * Asserts that the target is `NaN`.
    *
-   *     expect('foo').to.be.NaN;
-   *     expect(4).not.to.be.NaN;
+   * Asserts that the target is exactly `NaN`.
+   *
+   *     expect(NaN).to.be.NaN;
+   *
+   * Add `.not` earlier in the chain to negate `.NaN`. However, it's often best
+   * to assert that the target is equal to its expected value, rather than not
+   * equal to `NaN`.
+   *
+   *     expect('foo').to.equal('foo'); // Recommended
+   *     expect('foo').to.not.be.NaN; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(42, 'nooo why fail??').to.be.NaN;
    *
    * @name NaN
    * @namespace BDD
@@ -650,7 +1148,7 @@ module.exports = function (chai, _) {
 
   Assertion.addProperty('NaN', function () {
     this.assert(
-        isNaN(flag(this, 'object'))
+        _.isNaN(flag(this, 'object'))
         , 'expected #{this} to be NaN'
         , 'expected #{this} not to be NaN'
     );
@@ -659,15 +1157,27 @@ module.exports = function (chai, _) {
   /**
    * ### .exist
    *
-   * Asserts that the target is neither `null` nor `undefined`.
+   * Asserts that the target is not strictly (`===`) equal to either `null` or
+   * `undefined`. However, it's often best to assert that the target is equal to
+   * its expected value.
    *
-   *     var foo = 'hi'
-   *       , bar = null
-   *       , baz;
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.exist; // Not recommended
+   *
+   *     expect(0).to.equal(0); // Recommended
+   *     expect(0).to.exist; // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.exist`.
    *
-   *     expect(foo).to.exist;
-   *     expect(bar).to.not.exist;
-   *     expect(baz).to.not.exist;
+   *     expect(null).to.be.null; // Recommended
+   *     expect(null).to.not.exist; // Not recommended
+   *
+   *     expect(undefined).to.be.undefined; // Recommended
+   *     expect(undefined).to.not.exist; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(null, 'nooo why fail??').to.exist;
    *
    * @name exist
    * @namespace BDD
@@ -675,42 +1185,103 @@ module.exports = function (chai, _) {
    */
 
   Assertion.addProperty('exist', function () {
+    var val = flag(this, 'object');
     this.assert(
-        null != flag(this, 'object')
+        val !== null && val !== undefined
       , 'expected #{this} to exist'
       , 'expected #{this} to not exist'
     );
   });
 
-
   /**
    * ### .empty
    *
-   * Asserts that the target's length is `0`. For arrays and strings, it checks
-   * the `length` property. For objects, it gets the count of
-   * enumerable keys.
+   * When the target is a string or array, `.empty` asserts that the target's
+   * `length` property is strictly (`===`) equal to `0`.
    *
    *     expect([]).to.be.empty;
    *     expect('').to.be.empty;
+   *
+   * When the target is a map or set, `.empty` asserts that the target's `size`
+   * property is strictly equal to `0`.
+   *
+   *     expect(new Set()).to.be.empty;
+   *     expect(new Map()).to.be.empty;
+   *
+   * When the target is a non-function object, `.empty` asserts that the target
+   * doesn't have any own enumerable properties. Properties with Symbol-based
+   * keys are excluded from the count.
+   *
    *     expect({}).to.be.empty;
    *
+   * Because `.empty` does different things based on the target's type, it's
+   * important to check the target's type before using `.empty`. See the `.a`
+   * doc for info on testing a target's type.
+   *
+   *     expect([]).to.be.an('array').that.is.empty;
+   *
+   * Add `.not` earlier in the chain to negate `.empty`. However, it's often
+   * best to assert that the target contains its expected number of values,
+   * rather than asserting that it's not empty.
+   *
+   *     expect([1, 2, 3]).to.have.lengthOf(3); // Recommended
+   *     expect([1, 2, 3]).to.not.be.empty; // Not recommended
+   *
+   *     expect(new Set([1, 2, 3])).to.have.property('size', 3); // Recommended
+   *     expect(new Set([1, 2, 3])).to.not.be.empty; // Not recommended
+   *
+   *     expect(Object.keys({a: 1})).to.have.lengthOf(1); // Recommended
+   *     expect({a: 1}).to.not.be.empty; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect([1, 2, 3], 'nooo why fail??').to.be.empty;
+   *
    * @name empty
    * @namespace BDD
    * @api public
    */
 
   Assertion.addProperty('empty', function () {
-    var obj = flag(this, 'object')
-      , expected = obj;
+    var val = flag(this, 'object')
+      , ssfi = flag(this, 'ssfi')
+      , flagMsg = flag(this, 'message')
+      , itemsCount;
+
+    flagMsg = flagMsg ? flagMsg + ': ' : '';
 
-    if (Array.isArray(obj) || 'string' === typeof object) {
-      expected = obj.length;
-    } else if (typeof obj === 'object') {
-      expected = Object.keys(obj).length;
+    switch (_.type(val).toLowerCase()) {
+      case 'array':
+      case 'string':
+        itemsCount = val.length;
+        break;
+      case 'map':
+      case 'set':
+        itemsCount = val.size;
+        break;
+      case 'weakmap':
+      case 'weakset':
+        throw new AssertionError(
+          flagMsg + '.empty was passed a weak collection',
+          undefined,
+          ssfi
+        );
+      case 'function':
+        var msg = flagMsg + '.empty was passed a function ' + _.getName(val);
+        throw new AssertionError(msg.trim(), undefined, ssfi);
+      default:
+        if (val !== Object(val)) {
+          throw new AssertionError(
+            flagMsg + '.empty was passed non-string primitive ' + _.inspect(val),
+            undefined,
+            ssfi
+          );
+        }
+        itemsCount = Object.keys(val).length;
     }
 
     this.assert(
-        !expected
+        0 === itemsCount
       , 'expected #{this} to be empty'
       , 'expected #{this} not to be empty'
     );
@@ -719,12 +1290,27 @@ module.exports = function (chai, _) {
   /**
    * ### .arguments
    *
-   * Asserts that the target is an arguments object.
+   * Asserts that the target is an `arguments` object.
    *
    *     function test () {
    *       expect(arguments).to.be.arguments;
    *     }
    *
+   *     test();
+   *
+   * Add `.not` earlier in the chain to negate `.arguments`. However, it's often
+   * best to assert which type the target is expected to be, rather than
+   * asserting that its not an `arguments` object.
+   *
+   *     expect('foo').to.be.a('string'); // Recommended
+   *     expect('foo').to.not.be.arguments; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect({}, 'nooo why fail??').to.be.arguments;
+   *
+   * The alias `.Arguments` can be used interchangeably with `.arguments`.
+   *
    * @name arguments
    * @alias Arguments
    * @namespace BDD
@@ -733,9 +1319,9 @@ module.exports = function (chai, _) {
 
   function checkArguments () {
     var obj = flag(this, 'object')
-      , type = Object.prototype.toString.call(obj);
+      , type = _.type(obj);
     this.assert(
-        '[object Arguments]' === type
+        'Arguments' === type
       , 'expected #{this} to be arguments but got ' + type
       , 'expected #{this} to not be arguments'
     );
@@ -745,24 +1331,46 @@ module.exports = function (chai, _) {
   Assertion.addProperty('Arguments', checkArguments);
 
   /**
-   * ### .equal(value)
+   * ### .equal(val[, msg])
+   *
+   * Asserts that the target is strictly (`===`) equal to the given `val`.
+   *
+   *     expect(1).to.equal(1);
+   *     expect('foo').to.equal('foo');
+   *
+   * Add `.deep` earlier in the chain to use deep equality instead. See the
+   * `deep-eql` project page for info on the deep equality algorithm:
+   * https://github.com/chaijs/deep-eql.
    *
-   * Asserts that the target is strictly equal (`===`) to `value`.
-   * Alternately, if the `deep` flag is set, asserts that
-   * the target is deeply equal to `value`.
+   *     // Target object deeply (but not strictly) equals `{a: 1}`
+   *     expect({a: 1}).to.deep.equal({a: 1});
+   *     expect({a: 1}).to.not.equal({a: 1});
    *
-   *     expect('hello').to.equal('hello');
-   *     expect(42).to.equal(42);
-   *     expect(1).to.not.equal(true);
-   *     expect({ foo: 'bar' }).to.not.equal({ foo: 'bar' });
-   *     expect({ foo: 'bar' }).to.deep.equal({ foo: 'bar' });
+   *     // Target array deeply (but not strictly) equals `[1, 2]`
+   *     expect([1, 2]).to.deep.equal([1, 2]);
+   *     expect([1, 2]).to.not.equal([1, 2]);
+   *
+   * Add `.not` earlier in the chain to negate `.equal`. However, it's often
+   * best to assert that the target is equal to its expected value, rather than
+   * not equal to one of countless unexpected values.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.equal(2); // Not recommended
+   *
+   * `.equal` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect(1).to.equal(2, 'nooo why fail??');
+   *     expect(1, 'nooo why fail??').to.equal(2);
+   *
+   * The aliases `.equals` and `eq` can be used interchangeably with `.equal`.
    *
    * @name equal
    * @alias equals
    * @alias eq
-   * @alias deep.equal
-   * @param {Mixed} value
-   * @param {String} message _optional_
+   * @param {Mixed} val
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -771,7 +1379,10 @@ module.exports = function (chai, _) {
     if (msg) flag(this, 'message', msg);
     var obj = flag(this, 'object');
     if (flag(this, 'deep')) {
-      return this.eql(val);
+      var prevLockSsfi = flag(this, 'lockSsfi');
+      flag(this, 'lockSsfi', true);
+      this.eql(val);
+      flag(this, 'lockSsfi', prevLockSsfi);
     } else {
       this.assert(
           val === obj
@@ -789,17 +1400,42 @@ module.exports = function (chai, _) {
   Assertion.addMethod('eq', assertEqual);
 
   /**
-   * ### .eql(value)
+   * ### .eql(obj[, msg])
+   *
+   * Asserts that the target is deeply equal to the given `obj`. See the
+   * `deep-eql` project page for info on the deep equality algorithm:
+   * https://github.com/chaijs/deep-eql.
    *
-   * Asserts that the target is deeply equal to `value`.
+   *     // Target object is deeply (but not strictly) equal to {a: 1}
+   *     expect({a: 1}).to.eql({a: 1}).but.not.equal({a: 1});
    *
-   *     expect({ foo: 'bar' }).to.eql({ foo: 'bar' });
-   *     expect([ 1, 2, 3 ]).to.eql([ 1, 2, 3 ]);
+   *     // Target array is deeply (but not strictly) equal to [1, 2]
+   *     expect([1, 2]).to.eql([1, 2]).but.not.equal([1, 2]);
+   *
+   * Add `.not` earlier in the chain to negate `.eql`. However, it's often best
+   * to assert that the target is deeply equal to its expected value, rather
+   * than not deeply equal to one of countless unexpected values.
+   *
+   *     expect({a: 1}).to.eql({a: 1}); // Recommended
+   *     expect({a: 1}).to.not.eql({b: 2}); // Not recommended
+   *
+   * `.eql` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect({a: 1}).to.eql({b: 2}, 'nooo why fail??');
+   *     expect({a: 1}, 'nooo why fail??').to.eql({b: 2});
+   *
+   * The alias `.eqls` can be used interchangeably with `.eql`.
+   *
+   * The `.deep.equal` assertion is almost identical to `.eql` but with one
+   * difference: `.deep.equal` causes deep equality comparisons to also be used
+   * for any other assertions that follow in the chain.
    *
    * @name eql
    * @alias eqls
-   * @param {Mixed} value
-   * @param {String} message _optional_
+   * @param {Mixed} obj
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -820,47 +1456,101 @@ module.exports = function (chai, _) {
   Assertion.addMethod('eqls', assertEql);
 
   /**
-   * ### .above(value)
+   * ### .above(n[, msg])
    *
-   * Asserts that the target is greater than `value`.
+   * Asserts that the target is a number or a date greater than the given number or date `n` respectively.
+   * However, it's often best to assert that the target is equal to its expected
+   * value.
    *
-   *     expect(10).to.be.above(5);
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(2).to.be.above(1); // Not recommended
    *
-   * Can also be used in conjunction with `length` to
-   * assert a minimum length. The benefit being a
-   * more informative error message than if the length
-   * was supplied directly.
+   * Add `.lengthOf` earlier in the chain to assert that the target's `length`
+   * or `size` is greater than the given number `n`.
    *
-   *     expect('foo').to.have.length.above(2);
-   *     expect([ 1, 2, 3 ]).to.have.length.above(2);
+   *     expect('foo').to.have.lengthOf(3); // Recommended
+   *     expect('foo').to.have.lengthOf.above(2); // Not recommended
+   *
+   *     expect([1, 2, 3]).to.have.lengthOf(3); // Recommended
+   *     expect([1, 2, 3]).to.have.lengthOf.above(2); // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.above`.
+   *
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(1).to.not.be.above(2); // Not recommended
+   *
+   * `.above` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect(1).to.be.above(2, 'nooo why fail??');
+   *     expect(1, 'nooo why fail??').to.be.above(2);
+   *
+   * The aliases `.gt` and `.greaterThan` can be used interchangeably with
+   * `.above`.
    *
    * @name above
    * @alias gt
    * @alias greaterThan
-   * @param {Number} value
-   * @param {String} message _optional_
+   * @param {Number} n
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   function assertAbove (n, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    if (flag(this, 'doLength')) {
-      new Assertion(obj, msg).to.have.property('length');
-      var len = obj.length;
-      this.assert(
-          len > n
-        , 'expected #{this} to have a length above #{exp} but got #{act}'
-        , 'expected #{this} to not have a length above #{exp}'
-        , n
-        , len
-      );
+    var obj = flag(this, 'object')
+      , doLength = flag(this, 'doLength')
+      , flagMsg = flag(this, 'message')
+      , msgPrefix = ((flagMsg) ? flagMsg + ': ' : '')
+      , ssfi = flag(this, 'ssfi')
+      , objType = _.type(obj).toLowerCase()
+      , nType = _.type(n).toLowerCase()
+      , errorMessage
+      , shouldThrow = true;
+
+    if (doLength && objType !== 'map' && objType !== 'set') {
+      new Assertion(obj, flagMsg, ssfi, true).to.have.property('length');
+    }
+
+    if (!doLength && (objType === 'date' && nType !== 'date')) {
+      errorMessage = msgPrefix + 'the argument to above must be a date';
+    } else if (nType !== 'number' && (doLength || objType === 'number')) {
+      errorMessage = msgPrefix + 'the argument to above must be a number';
+    } else if (!doLength && (objType !== 'date' && objType !== 'number')) {
+      var printObj = (objType === 'string') ? "'" + obj + "'" : obj;
+      errorMessage = msgPrefix + 'expected ' + printObj + ' to be a number or a date';
     } else {
-      this.assert(
+      shouldThrow = false;
+    }
+
+    if (shouldThrow) {
+      throw new AssertionError(errorMessage, undefined, ssfi);
+    }
+
+    if (doLength) {
+      var descriptor = 'length'
+        , itemsCount;
+      if (objType === 'map' || objType === 'set') {
+        descriptor = 'size';
+        itemsCount = obj.size;
+      } else {
+        itemsCount = obj.length;
+      }
+      this.assert(
+          itemsCount > n
+        , 'expected #{this} to have a ' + descriptor + ' above #{exp} but got #{act}'
+        , 'expected #{this} to not have a ' + descriptor + ' above #{exp}'
+        , n
+        , itemsCount
+      );
+    } else {
+      this.assert(
           obj > n
-        , 'expected #{this} to be above ' + n
-        , 'expected #{this} to be at most ' + n
+        , 'expected #{this} to be above #{exp}'
+        , 'expected #{this} to be at most #{exp}'
+        , n
       );
     }
   }
@@ -870,46 +1560,100 @@ module.exports = function (chai, _) {
   Assertion.addMethod('greaterThan', assertAbove);
 
   /**
-   * ### .least(value)
+   * ### .least(n[, msg])
+   *
+   * Asserts that the target is a number or a date greater than or equal to the given
+   * number or date `n` respectively. However, it's often best to assert that the target is equal to
+   * its expected value.
+   *
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(2).to.be.at.least(1); // Not recommended
+   *     expect(2).to.be.at.least(2); // Not recommended
+   *
+   * Add `.lengthOf` earlier in the chain to assert that the target's `length`
+   * or `size` is greater than or equal to the given number `n`.
+   *
+   *     expect('foo').to.have.lengthOf(3); // Recommended
+   *     expect('foo').to.have.lengthOf.at.least(2); // Not recommended
    *
-   * Asserts that the target is greater than or equal to `value`.
+   *     expect([1, 2, 3]).to.have.lengthOf(3); // Recommended
+   *     expect([1, 2, 3]).to.have.lengthOf.at.least(2); // Not recommended
    *
-   *     expect(10).to.be.at.least(10);
+   * Add `.not` earlier in the chain to negate `.least`.
    *
-   * Can also be used in conjunction with `length` to
-   * assert a minimum length. The benefit being a
-   * more informative error message than if the length
-   * was supplied directly.
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.at.least(2); // Not recommended
    *
-   *     expect('foo').to.have.length.of.at.least(2);
-   *     expect([ 1, 2, 3 ]).to.have.length.of.at.least(3);
+   * `.least` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect(1).to.be.at.least(2, 'nooo why fail??');
+   *     expect(1, 'nooo why fail??').to.be.at.least(2);
+   *
+   * The alias `.gte` can be used interchangeably with `.least`.
    *
    * @name least
    * @alias gte
-   * @param {Number} value
-   * @param {String} message _optional_
+   * @param {Number} n
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   function assertLeast (n, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    if (flag(this, 'doLength')) {
-      new Assertion(obj, msg).to.have.property('length');
-      var len = obj.length;
+    var obj = flag(this, 'object')
+      , doLength = flag(this, 'doLength')
+      , flagMsg = flag(this, 'message')
+      , msgPrefix = ((flagMsg) ? flagMsg + ': ' : '')
+      , ssfi = flag(this, 'ssfi')
+      , objType = _.type(obj).toLowerCase()
+      , nType = _.type(n).toLowerCase()
+      , errorMessage
+      , shouldThrow = true;
+
+    if (doLength && objType !== 'map' && objType !== 'set') {
+      new Assertion(obj, flagMsg, ssfi, true).to.have.property('length');
+    }
+
+    if (!doLength && (objType === 'date' && nType !== 'date')) {
+      errorMessage = msgPrefix + 'the argument to least must be a date';
+    } else if (nType !== 'number' && (doLength || objType === 'number')) {
+      errorMessage = msgPrefix + 'the argument to least must be a number';
+    } else if (!doLength && (objType !== 'date' && objType !== 'number')) {
+      var printObj = (objType === 'string') ? "'" + obj + "'" : obj;
+      errorMessage = msgPrefix + 'expected ' + printObj + ' to be a number or a date';
+    } else {
+      shouldThrow = false;
+    }
+
+    if (shouldThrow) {
+      throw new AssertionError(errorMessage, undefined, ssfi);
+    }
+
+    if (doLength) {
+      var descriptor = 'length'
+        , itemsCount;
+      if (objType === 'map' || objType === 'set') {
+        descriptor = 'size';
+        itemsCount = obj.size;
+      } else {
+        itemsCount = obj.length;
+      }
       this.assert(
-          len >= n
-        , 'expected #{this} to have a length at least #{exp} but got #{act}'
-        , 'expected #{this} to have a length below #{exp}'
+          itemsCount >= n
+        , 'expected #{this} to have a ' + descriptor + ' at least #{exp} but got #{act}'
+        , 'expected #{this} to have a ' + descriptor + ' below #{exp}'
         , n
-        , len
+        , itemsCount
       );
     } else {
       this.assert(
           obj >= n
-        , 'expected #{this} to be at least ' + n
-        , 'expected #{this} to be below ' + n
+        , 'expected #{this} to be at least #{exp}'
+        , 'expected #{this} to be below #{exp}'
+        , n
       );
     }
   }
@@ -918,47 +1662,101 @@ module.exports = function (chai, _) {
   Assertion.addMethod('gte', assertLeast);
 
   /**
-   * ### .below(value)
+   * ### .below(n[, msg])
    *
-   * Asserts that the target is less than `value`.
+   * Asserts that the target is a number or a date less than the given number or date `n` respectively.
+   * However, it's often best to assert that the target is equal to its expected
+   * value.
    *
-   *     expect(5).to.be.below(10);
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.be.below(2); // Not recommended
    *
-   * Can also be used in conjunction with `length` to
-   * assert a maximum length. The benefit being a
-   * more informative error message than if the length
-   * was supplied directly.
+   * Add `.lengthOf` earlier in the chain to assert that the target's `length`
+   * or `size` is less than the given number `n`.
    *
-   *     expect('foo').to.have.length.below(4);
-   *     expect([ 1, 2, 3 ]).to.have.length.below(4);
+   *     expect('foo').to.have.lengthOf(3); // Recommended
+   *     expect('foo').to.have.lengthOf.below(4); // Not recommended
+   *
+   *     expect([1, 2, 3]).to.have.length(3); // Recommended
+   *     expect([1, 2, 3]).to.have.lengthOf.below(4); // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.below`.
+   *
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(2).to.not.be.below(1); // Not recommended
+   *
+   * `.below` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect(2).to.be.below(1, 'nooo why fail??');
+   *     expect(2, 'nooo why fail??').to.be.below(1);
+   *
+   * The aliases `.lt` and `.lessThan` can be used interchangeably with
+   * `.below`.
    *
    * @name below
    * @alias lt
    * @alias lessThan
-   * @param {Number} value
-   * @param {String} message _optional_
+   * @param {Number} n
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   function assertBelow (n, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    if (flag(this, 'doLength')) {
-      new Assertion(obj, msg).to.have.property('length');
-      var len = obj.length;
+    var obj = flag(this, 'object')
+      , doLength = flag(this, 'doLength')
+      , flagMsg = flag(this, 'message')
+      , msgPrefix = ((flagMsg) ? flagMsg + ': ' : '')
+      , ssfi = flag(this, 'ssfi')
+      , objType = _.type(obj).toLowerCase()
+      , nType = _.type(n).toLowerCase()
+      , errorMessage
+      , shouldThrow = true;
+
+    if (doLength && objType !== 'map' && objType !== 'set') {
+      new Assertion(obj, flagMsg, ssfi, true).to.have.property('length');
+    }
+
+    if (!doLength && (objType === 'date' && nType !== 'date')) {
+      errorMessage = msgPrefix + 'the argument to below must be a date';
+    } else if (nType !== 'number' && (doLength || objType === 'number')) {
+      errorMessage = msgPrefix + 'the argument to below must be a number';
+    } else if (!doLength && (objType !== 'date' && objType !== 'number')) {
+      var printObj = (objType === 'string') ? "'" + obj + "'" : obj;
+      errorMessage = msgPrefix + 'expected ' + printObj + ' to be a number or a date';
+    } else {
+      shouldThrow = false;
+    }
+
+    if (shouldThrow) {
+      throw new AssertionError(errorMessage, undefined, ssfi);
+    }
+
+    if (doLength) {
+      var descriptor = 'length'
+        , itemsCount;
+      if (objType === 'map' || objType === 'set') {
+        descriptor = 'size';
+        itemsCount = obj.size;
+      } else {
+        itemsCount = obj.length;
+      }
       this.assert(
-          len < n
-        , 'expected #{this} to have a length below #{exp} but got #{act}'
-        , 'expected #{this} to not have a length below #{exp}'
+          itemsCount < n
+        , 'expected #{this} to have a ' + descriptor + ' below #{exp} but got #{act}'
+        , 'expected #{this} to not have a ' + descriptor + ' below #{exp}'
         , n
-        , len
+        , itemsCount
       );
     } else {
       this.assert(
           obj < n
-        , 'expected #{this} to be below ' + n
-        , 'expected #{this} to be at least ' + n
+        , 'expected #{this} to be below #{exp}'
+        , 'expected #{this} to be at least #{exp}'
+        , n
       );
     }
   }
@@ -968,46 +1766,100 @@ module.exports = function (chai, _) {
   Assertion.addMethod('lessThan', assertBelow);
 
   /**
-   * ### .most(value)
+   * ### .most(n[, msg])
+   *
+   * Asserts that the target is a number or a date less than or equal to the given number
+   * or date `n` respectively. However, it's often best to assert that the target is equal to its
+   * expected value.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.be.at.most(2); // Not recommended
+   *     expect(1).to.be.at.most(1); // Not recommended
+   *
+   * Add `.lengthOf` earlier in the chain to assert that the target's `length`
+   * or `size` is less than or equal to the given number `n`.
+   *
+   *     expect('foo').to.have.lengthOf(3); // Recommended
+   *     expect('foo').to.have.lengthOf.at.most(4); // Not recommended
    *
-   * Asserts that the target is less than or equal to `value`.
+   *     expect([1, 2, 3]).to.have.lengthOf(3); // Recommended
+   *     expect([1, 2, 3]).to.have.lengthOf.at.most(4); // Not recommended
    *
-   *     expect(5).to.be.at.most(5);
+   * Add `.not` earlier in the chain to negate `.most`.
    *
-   * Can also be used in conjunction with `length` to
-   * assert a maximum length. The benefit being a
-   * more informative error message than if the length
-   * was supplied directly.
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(2).to.not.be.at.most(1); // Not recommended
    *
-   *     expect('foo').to.have.length.of.at.most(4);
-   *     expect([ 1, 2, 3 ]).to.have.length.of.at.most(3);
+   * `.most` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect(2).to.be.at.most(1, 'nooo why fail??');
+   *     expect(2, 'nooo why fail??').to.be.at.most(1);
+   *
+   * The alias `.lte` can be used interchangeably with `.most`.
    *
    * @name most
    * @alias lte
-   * @param {Number} value
-   * @param {String} message _optional_
+   * @param {Number} n
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   function assertMost (n, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    if (flag(this, 'doLength')) {
-      new Assertion(obj, msg).to.have.property('length');
-      var len = obj.length;
+    var obj = flag(this, 'object')
+      , doLength = flag(this, 'doLength')
+      , flagMsg = flag(this, 'message')
+      , msgPrefix = ((flagMsg) ? flagMsg + ': ' : '')
+      , ssfi = flag(this, 'ssfi')
+      , objType = _.type(obj).toLowerCase()
+      , nType = _.type(n).toLowerCase()
+      , errorMessage
+      , shouldThrow = true;
+
+    if (doLength && objType !== 'map' && objType !== 'set') {
+      new Assertion(obj, flagMsg, ssfi, true).to.have.property('length');
+    }
+
+    if (!doLength && (objType === 'date' && nType !== 'date')) {
+      errorMessage = msgPrefix + 'the argument to most must be a date';
+    } else if (nType !== 'number' && (doLength || objType === 'number')) {
+      errorMessage = msgPrefix + 'the argument to most must be a number';
+    } else if (!doLength && (objType !== 'date' && objType !== 'number')) {
+      var printObj = (objType === 'string') ? "'" + obj + "'" : obj;
+      errorMessage = msgPrefix + 'expected ' + printObj + ' to be a number or a date';
+    } else {
+      shouldThrow = false;
+    }
+
+    if (shouldThrow) {
+      throw new AssertionError(errorMessage, undefined, ssfi);
+    }
+
+    if (doLength) {
+      var descriptor = 'length'
+        , itemsCount;
+      if (objType === 'map' || objType === 'set') {
+        descriptor = 'size';
+        itemsCount = obj.size;
+      } else {
+        itemsCount = obj.length;
+      }
       this.assert(
-          len <= n
-        , 'expected #{this} to have a length at most #{exp} but got #{act}'
-        , 'expected #{this} to have a length above #{exp}'
+          itemsCount <= n
+        , 'expected #{this} to have a ' + descriptor + ' at most #{exp} but got #{act}'
+        , 'expected #{this} to have a ' + descriptor + ' above #{exp}'
         , n
-        , len
+        , itemsCount
       );
     } else {
       this.assert(
           obj <= n
-        , 'expected #{this} to be at most ' + n
-        , 'expected #{this} to be above ' + n
+        , 'expected #{this} to be at most #{exp}'
+        , 'expected #{this} to be above #{exp}'
+        , n
       );
     }
   }
@@ -1016,24 +1868,44 @@ module.exports = function (chai, _) {
   Assertion.addMethod('lte', assertMost);
 
   /**
-   * ### .within(start, finish)
+   * ### .within(start, finish[, msg])
    *
-   * Asserts that the target is within a range.
+   * Asserts that the target is a number or a date greater than or equal to the given
+   * number or date `start`, and less than or equal to the given number or date `finish` respectively.
+   * However, it's often best to assert that the target is equal to its expected
+   * value.
    *
-   *     expect(7).to.be.within(5,10);
+   *     expect(2).to.equal(2); // Recommended
+   *     expect(2).to.be.within(1, 3); // Not recommended
+   *     expect(2).to.be.within(2, 3); // Not recommended
+   *     expect(2).to.be.within(1, 2); // Not recommended
    *
-   * Can also be used in conjunction with `length` to
-   * assert a length range. The benefit being a
-   * more informative error message than if the length
-   * was supplied directly.
+   * Add `.lengthOf` earlier in the chain to assert that the target's `length`
+   * or `size` is greater than or equal to the given number `start`, and less
+   * than or equal to the given number `finish`.
    *
-   *     expect('foo').to.have.length.within(2,4);
-   *     expect([ 1, 2, 3 ]).to.have.length.within(2,4);
+   *     expect('foo').to.have.lengthOf(3); // Recommended
+   *     expect('foo').to.have.lengthOf.within(2, 4); // Not recommended
+   *
+   *     expect([1, 2, 3]).to.have.lengthOf(3); // Recommended
+   *     expect([1, 2, 3]).to.have.lengthOf.within(2, 4); // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.within`.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.within(2, 4); // Not recommended
+   *
+   * `.within` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect(4).to.be.within(1, 3, 'nooo why fail??');
+   *     expect(4, 'nooo why fail??').to.be.within(1, 3);
    *
    * @name within
-   * @param {Number} start lowerbound inclusive
-   * @param {Number} finish upperbound inclusive
-   * @param {String} message _optional_
+   * @param {Number} start lower bound inclusive
+   * @param {Number} finish upper bound inclusive
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -1041,14 +1913,51 @@ module.exports = function (chai, _) {
   Assertion.addMethod('within', function (start, finish, msg) {
     if (msg) flag(this, 'message', msg);
     var obj = flag(this, 'object')
-      , range = start + '..' + finish;
-    if (flag(this, 'doLength')) {
-      new Assertion(obj, msg).to.have.property('length');
-      var len = obj.length;
+      , doLength = flag(this, 'doLength')
+      , flagMsg = flag(this, 'message')
+      , msgPrefix = ((flagMsg) ? flagMsg + ': ' : '')
+      , ssfi = flag(this, 'ssfi')
+      , objType = _.type(obj).toLowerCase()
+      , startType = _.type(start).toLowerCase()
+      , finishType = _.type(finish).toLowerCase()
+      , errorMessage
+      , shouldThrow = true
+      , range = (startType === 'date' && finishType === 'date')
+          ? start.toUTCString() + '..' + finish.toUTCString()
+          : start + '..' + finish;
+
+    if (doLength && objType !== 'map' && objType !== 'set') {
+      new Assertion(obj, flagMsg, ssfi, true).to.have.property('length');
+    }
+
+    if (!doLength && (objType === 'date' && (startType !== 'date' || finishType !== 'date'))) {
+      errorMessage = msgPrefix + 'the arguments to within must be dates';
+    } else if ((startType !== 'number' || finishType !== 'number') && (doLength || objType === 'number')) {
+      errorMessage = msgPrefix + 'the arguments to within must be numbers';
+    } else if (!doLength && (objType !== 'date' && objType !== 'number')) {
+      var printObj = (objType === 'string') ? "'" + obj + "'" : obj;
+      errorMessage = msgPrefix + 'expected ' + printObj + ' to be a number or a date';
+    } else {
+      shouldThrow = false;
+    }
+
+    if (shouldThrow) {
+      throw new AssertionError(errorMessage, undefined, ssfi);
+    }
+
+    if (doLength) {
+      var descriptor = 'length'
+        , itemsCount;
+      if (objType === 'map' || objType === 'set') {
+        descriptor = 'size';
+        itemsCount = obj.size;
+      } else {
+        itemsCount = obj.length;
+      }
       this.assert(
-          len >= start && len <= finish
-        , 'expected #{this} to have a length within ' + range
-        , 'expected #{this} to not have a length within ' + range
+          itemsCount >= start && itemsCount <= finish
+        , 'expected #{this} to have a ' + descriptor + ' within ' + range
+        , 'expected #{this} to not have a ' + descriptor + ' within ' + range
       );
     } else {
       this.assert(
@@ -1060,19 +1969,39 @@ module.exports = function (chai, _) {
   });
 
   /**
-   * ### .instanceof(constructor)
+   * ### .instanceof(constructor[, msg])
    *
-   * Asserts that the target is an instance of `constructor`.
+   * Asserts that the target is an instance of the given `constructor`.
    *
-   *     var Tea = function (name) { this.name = name; }
-   *       , Chai = new Tea('chai');
+   *     function Cat () { }
    *
-   *     expect(Chai).to.be.an.instanceof(Tea);
-   *     expect([ 1, 2, 3 ]).to.be.instanceof(Array);
+   *     expect(new Cat()).to.be.an.instanceof(Cat);
+   *     expect([1, 2]).to.be.an.instanceof(Array);
+   *
+   * Add `.not` earlier in the chain to negate `.instanceof`.
+   *
+   *     expect({a: 1}).to.not.be.an.instanceof(Array);
+   *
+   * `.instanceof` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect(1).to.be.an.instanceof(Array, 'nooo why fail??');
+   *     expect(1, 'nooo why fail??').to.be.an.instanceof(Array);
+   *
+   * Due to limitations in ES5, `.instanceof` may not always work as expected
+   * when using a transpiler such as Babel or TypeScript. In particular, it may
+   * produce unexpected results when subclassing built-in object such as
+   * `Array`, `Error`, and `Map`. See your transpiler's docs for details:
+   *
+   * - ([Babel](https://babeljs.io/docs/usage/caveats/#classes))
+   * - ([TypeScript](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#extending-built-ins-like-error-array-and-map-may-no-longer-work))
+   *
+   * The alias `.instanceOf` can be used interchangeably with `.instanceof`.
    *
    * @name instanceof
    * @param {Constructor} constructor
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @alias instanceOf
    * @namespace BDD
    * @api public
@@ -1080,9 +2009,33 @@ module.exports = function (chai, _) {
 
   function assertInstanceOf (constructor, msg) {
     if (msg) flag(this, 'message', msg);
+
+    var target = flag(this, 'object')
+    var ssfi = flag(this, 'ssfi');
+    var flagMsg = flag(this, 'message');
+
+    try {
+      var isInstanceOf = target instanceof constructor;
+    } catch (err) {
+      if (err instanceof TypeError) {
+        flagMsg = flagMsg ? flagMsg + ': ' : '';
+        throw new AssertionError(
+          flagMsg + 'The instanceof assertion needs a constructor but '
+            + _.type(constructor) + ' was given.',
+          undefined,
+          ssfi
+        );
+      }
+      throw err;
+    }
+
     var name = _.getName(constructor);
+    if (name === null) {
+      name = 'an unnamed constructor';
+    }
+
     this.assert(
-        flag(this, 'object') instanceof constructor
+        isInstanceOf
       , 'expected #{this} to be an instance of ' + name
       , 'expected #{this} to not be an instance of ' + name
     );
@@ -1092,162 +2045,329 @@ module.exports = function (chai, _) {
   Assertion.addMethod('instanceOf', assertInstanceOf);
 
   /**
-   * ### .property(name, [value])
+   * ### .property(name[, val[, msg]])
    *
-   * Asserts that the target has a property `name`, optionally asserting that
-   * the value of that property is strictly equal to  `value`.
-   * If the `deep` flag is set, you can use dot- and bracket-notation for deep
-   * references into objects and arrays.
+   * Asserts that the target has a property with the given key `name`.
    *
-   *     // simple referencing
-   *     var obj = { foo: 'bar' };
-   *     expect(obj).to.have.property('foo');
-   *     expect(obj).to.have.property('foo', 'bar');
+   *     expect({a: 1}).to.have.property('a');
    *
-   *     // deep referencing
-   *     var deepObj = {
-   *         green: { tea: 'matcha' }
-   *       , teas: [ 'chai', 'matcha', { tea: 'konacha' } ]
-   *     };
+   * When `val` is provided, `.property` also asserts that the property's value
+   * is equal to the given `val`.
+   *
+   *     expect({a: 1}).to.have.property('a', 1);
+   *
+   * By default, strict (`===`) equality is used. Add `.deep` earlier in the
+   * chain to use deep equality instead. See the `deep-eql` project page for
+   * info on the deep equality algorithm: https://github.com/chaijs/deep-eql.
+   *
+   *     // Target object deeply (but not strictly) has property `x: {a: 1}`
+   *     expect({x: {a: 1}}).to.have.deep.property('x', {a: 1});
+   *     expect({x: {a: 1}}).to.not.have.property('x', {a: 1});
+   *
+   * The target's enumerable and non-enumerable properties are always included
+   * in the search. By default, both own and inherited properties are included.
+   * Add `.own` earlier in the chain to exclude inherited properties from the
+   * search.
+   *
+   *     Object.prototype.b = 2;
+   *
+   *     expect({a: 1}).to.have.own.property('a');
+   *     expect({a: 1}).to.have.own.property('a', 1);
+   *     expect({a: 1}).to.have.property('b');
+   *     expect({a: 1}).to.not.have.own.property('b');
+   *
+   * `.deep` and `.own` can be combined.
+   *
+   *     expect({x: {a: 1}}).to.have.deep.own.property('x', {a: 1});
+   *
+   * Add `.nested` earlier in the chain to enable dot- and bracket-notation when
+   * referencing nested properties.
+   *
+   *     expect({a: {b: ['x', 'y']}}).to.have.nested.property('a.b[1]');
+   *     expect({a: {b: ['x', 'y']}}).to.have.nested.property('a.b[1]', 'y');
+   *
+   * If `.` or `[]` are part of an actual property name, they can be escaped by
+   * adding two backslashes before them.
+   *
+   *     expect({'.a': {'[b]': 'x'}}).to.have.nested.property('\\.a.\\[b\\]');
+   *
+   * `.deep` and `.nested` can be combined.
+   *
+   *     expect({a: {b: [{c: 3}]}})
+   *       .to.have.deep.nested.property('a.b[0]', {c: 3});
+   *
+   * `.own` and `.nested` cannot be combined.
+   *
+   * Add `.not` earlier in the chain to negate `.property`.
+   *
+   *     expect({a: 1}).to.not.have.property('b');
+   *
+   * However, it's dangerous to negate `.property` when providing `val`. The
+   * problem is that it creates uncertain expectations by asserting that the
+   * target either doesn't have a property with the given key `name`, or that it
+   * does have a property with the given key `name` but its value isn't equal to
+   * the given `val`. It's often best to identify the exact output that's
+   * expected, and then write an assertion that only accepts that exact output.
+   *
+   * When the target isn't expected to have a property with the given key
+   * `name`, it's often best to assert exactly that.
+   *
+   *     expect({b: 2}).to.not.have.property('a'); // Recommended
+   *     expect({b: 2}).to.not.have.property('a', 1); // Not recommended
+   *
+   * When the target is expected to have a property with the given key `name`,
+   * it's often best to assert that the property has its expected value, rather
+   * than asserting that it doesn't have one of many unexpected values.
    *
-   *     expect(deepObj).to.have.deep.property('green.tea', 'matcha');
-   *     expect(deepObj).to.have.deep.property('teas[1]', 'matcha');
-   *     expect(deepObj).to.have.deep.property('teas[2].tea', 'konacha');
-   *
-   * You can also use an array as the starting point of a `deep.property`
-   * assertion, or traverse nested arrays.
-   *
-   *     var arr = [
-   *         [ 'chai', 'matcha', 'konacha' ]
-   *       , [ { tea: 'chai' }
-   *         , { tea: 'matcha' }
-   *         , { tea: 'konacha' } ]
-   *     ];
-   *
-   *     expect(arr).to.have.deep.property('[0][1]', 'matcha');
-   *     expect(arr).to.have.deep.property('[1][2].tea', 'konacha');
-   *
-   * Furthermore, `property` changes the subject of the assertion
-   * to be the value of that property from the original object. This
-   * permits for further chainable assertions on that property.
-   *
-   *     expect(obj).to.have.property('foo')
-   *       .that.is.a('string');
-   *     expect(deepObj).to.have.property('green')
-   *       .that.is.an('object')
-   *       .that.deep.equals({ tea: 'matcha' });
-   *     expect(deepObj).to.have.property('teas')
-   *       .that.is.an('array')
-   *       .with.deep.property('[2]')
-   *         .that.deep.equals({ tea: 'konacha' });
-   *
-   * Note that dots and bracket in `name` must be backslash-escaped when
-   * the `deep` flag is set, while they must NOT be escaped when the `deep`
-   * flag is not set.
-   *
-   *     // simple referencing
-   *     var css = { '.link[target]': 42 };
-   *     expect(css).to.have.property('.link[target]', 42);
-   *
-   *     // deep referencing
-   *     var deepCss = { '.link': { '[target]': 42 }};
-   *     expect(deepCss).to.have.deep.property('\\.link.\\[target\\]', 42);
+   *     expect({a: 3}).to.have.property('a', 3); // Recommended
+   *     expect({a: 3}).to.not.have.property('a', 1); // Not recommended
+   *
+   * `.property` changes the target of any assertions that follow in the chain
+   * to be the value of the property from the original target object.
+   *
+   *     expect({a: 1}).to.have.property('a').that.is.a('number');
+   *
+   * `.property` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`. When not providing `val`, only use the
+   * second form.
+   *
+   *     // Recommended
+   *     expect({a: 1}).to.have.property('a', 2, 'nooo why fail??');
+   *     expect({a: 1}, 'nooo why fail??').to.have.property('a', 2);
+   *     expect({a: 1}, 'nooo why fail??').to.have.property('b');
+   *
+   *     // Not recommended
+   *     expect({a: 1}).to.have.property('b', undefined, 'nooo why fail??');
+   *
+   * The above assertion isn't the same thing as not providing `val`. Instead,
+   * it's asserting that the target object has a `b` property that's equal to
+   * `undefined`.
+   *
+   * The assertions `.ownProperty` and `.haveOwnProperty` can be used
+   * interchangeably with `.own.property`.
    *
    * @name property
-   * @alias deep.property
    * @param {String} name
-   * @param {Mixed} value (optional)
-   * @param {String} message _optional_
+   * @param {Mixed} val (optional)
+   * @param {String} msg _optional_
    * @returns value of property for chaining
    * @namespace BDD
    * @api public
    */
 
-  Assertion.addMethod('property', function (name, val, msg) {
+  function assertProperty (name, val, msg) {
     if (msg) flag(this, 'message', msg);
 
-    var isDeep = !!flag(this, 'deep')
-      , descriptor = isDeep ? 'deep property ' : 'property '
-      , negate = flag(this, 'negate')
+    var isNested = flag(this, 'nested')
+      , isOwn = flag(this, 'own')
+      , flagMsg = flag(this, 'message')
       , obj = flag(this, 'object')
-      , pathInfo = isDeep ? _.getPathInfo(name, obj) : null
-      , hasProperty = isDeep
-        ? pathInfo.exists
-        : _.hasProperty(name, obj)
-      , value = isDeep
-        ? pathInfo.value
-        : obj[name];
-
-    if (negate && arguments.length > 1) {
-      if (undefined === value) {
-        msg = (msg != null) ? msg + ': ' : '';
-        throw new Error(msg + _.inspect(obj) + ' has no ' + descriptor + _.inspect(name));
+      , ssfi = flag(this, 'ssfi')
+      , nameType = typeof name;
+
+    flagMsg = flagMsg ? flagMsg + ': ' : '';
+
+    if (isNested) {
+      if (nameType !== 'string') {
+        throw new AssertionError(
+          flagMsg + 'the argument to property must be a string when using nested syntax',
+          undefined,
+          ssfi
+        );
       }
     } else {
+      if (nameType !== 'string' && nameType !== 'number' && nameType !== 'symbol') {
+        throw new AssertionError(
+          flagMsg + 'the argument to property must be a string, number, or symbol',
+          undefined,
+          ssfi
+        );
+      }
+    }
+
+    if (isNested && isOwn) {
+      throw new AssertionError(
+        flagMsg + 'The "nested" and "own" flags cannot be combined.',
+        undefined,
+        ssfi
+      );
+    }
+
+    if (obj === null || obj === undefined) {
+      throw new AssertionError(
+        flagMsg + 'Target cannot be null or undefined.',
+        undefined,
+        ssfi
+      );
+    }
+
+    var isDeep = flag(this, 'deep')
+      , negate = flag(this, 'negate')
+      , pathInfo = isNested ? _.getPathInfo(obj, name) : null
+      , value = isNested ? pathInfo.value : obj[name];
+
+    var descriptor = '';
+    if (isDeep) descriptor += 'deep ';
+    if (isOwn) descriptor += 'own ';
+    if (isNested) descriptor += 'nested ';
+    descriptor += 'property ';
+
+    var hasProperty;
+    if (isOwn) hasProperty = Object.prototype.hasOwnProperty.call(obj, name);
+    else if (isNested) hasProperty = pathInfo.exists;
+    else hasProperty = _.hasProperty(obj, name);
+
+    // When performing a negated assertion for both name and val, merely having
+    // a property with the given name isn't enough to cause the assertion to
+    // fail. It must both have a property with the given name, and the value of
+    // that property must equal the given val. Therefore, skip this assertion in
+    // favor of the next.
+    if (!negate || arguments.length === 1) {
       this.assert(
           hasProperty
-        , 'expected #{this} to have a ' + descriptor + _.inspect(name)
+        , 'expected #{this} to have ' + descriptor + _.inspect(name)
         , 'expected #{this} to not have ' + descriptor + _.inspect(name));
     }
 
     if (arguments.length > 1) {
       this.assert(
-          val === value
-        , 'expected #{this} to have a ' + descriptor + _.inspect(name) + ' of #{exp}, but got #{act}'
-        , 'expected #{this} to not have a ' + descriptor + _.inspect(name) + ' of #{act}'
+          hasProperty && (isDeep ? _.eql(val, value) : val === value)
+        , 'expected #{this} to have ' + descriptor + _.inspect(name) + ' of #{exp}, but got #{act}'
+        , 'expected #{this} to not have ' + descriptor + _.inspect(name) + ' of #{act}'
         , val
         , value
       );
     }
 
     flag(this, 'object', value);
-  });
-
+  }
 
-  /**
-   * ### .ownProperty(name)
-   *
-   * Asserts that the target has an own property `name`.
-   *
-   *     expect('test').to.have.ownProperty('length');
-   *
-   * @name ownProperty
-   * @alias haveOwnProperty
-   * @param {String} name
-   * @param {String} message _optional_
-   * @namespace BDD
-   * @api public
-   */
+  Assertion.addMethod('property', assertProperty);
 
-  function assertOwnProperty (name, msg) {
-    if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    this.assert(
-        obj.hasOwnProperty(name)
-      , 'expected #{this} to have own property ' + _.inspect(name)
-      , 'expected #{this} to not have own property ' + _.inspect(name)
-    );
+  function assertOwnProperty (name, value, msg) {
+    flag(this, 'own', true);
+    assertProperty.apply(this, arguments);
   }
 
   Assertion.addMethod('ownProperty', assertOwnProperty);
   Assertion.addMethod('haveOwnProperty', assertOwnProperty);
 
   /**
-   * ### .ownPropertyDescriptor(name[, descriptor[, message]])
-   *
-   * Asserts that the target has an own property descriptor `name`, that optionally matches `descriptor`.
-   *
-   *     expect('test').to.have.ownPropertyDescriptor('length');
-   *     expect('test').to.have.ownPropertyDescriptor('length', { enumerable: false, configurable: false, writable: false, value: 4 });
-   *     expect('test').not.to.have.ownPropertyDescriptor('length', { enumerable: false, configurable: false, writable: false, value: 3 });
-   *     expect('test').ownPropertyDescriptor('length').to.have.property('enumerable', false);
-   *     expect('test').ownPropertyDescriptor('length').to.have.keys('value');
+   * ### .ownPropertyDescriptor(name[, descriptor[, msg]])
+   *
+   * Asserts that the target has its own property descriptor with the given key
+   * `name`. Enumerable and non-enumerable properties are included in the
+   * search.
+   *
+   *     expect({a: 1}).to.have.ownPropertyDescriptor('a');
+   *
+   * When `descriptor` is provided, `.ownPropertyDescriptor` also asserts that
+   * the property's descriptor is deeply equal to the given `descriptor`. See
+   * the `deep-eql` project page for info on the deep equality algorithm:
+   * https://github.com/chaijs/deep-eql.
+   *
+   *     expect({a: 1}).to.have.ownPropertyDescriptor('a', {
+   *       configurable: true,
+   *       enumerable: true,
+   *       writable: true,
+   *       value: 1,
+   *     });
+   *
+   * Add `.not` earlier in the chain to negate `.ownPropertyDescriptor`.
+   *
+   *     expect({a: 1}).to.not.have.ownPropertyDescriptor('b');
+   *
+   * However, it's dangerous to negate `.ownPropertyDescriptor` when providing
+   * a `descriptor`. The problem is that it creates uncertain expectations by
+   * asserting that the target either doesn't have a property descriptor with
+   * the given key `name`, or that it does have a property descriptor with the
+   * given key `name` but its not deeply equal to the given `descriptor`. It's
+   * often best to identify the exact output that's expected, and then write an
+   * assertion that only accepts that exact output.
+   *
+   * When the target isn't expected to have a property descriptor with the given
+   * key `name`, it's often best to assert exactly that.
+   *
+   *     // Recommended
+   *     expect({b: 2}).to.not.have.ownPropertyDescriptor('a');
+   *
+   *     // Not recommended
+   *     expect({b: 2}).to.not.have.ownPropertyDescriptor('a', {
+   *       configurable: true,
+   *       enumerable: true,
+   *       writable: true,
+   *       value: 1,
+   *     });
+   *
+   * When the target is expected to have a property descriptor with the given
+   * key `name`, it's often best to assert that the property has its expected
+   * descriptor, rather than asserting that it doesn't have one of many
+   * unexpected descriptors.
+   *
+   *     // Recommended
+   *     expect({a: 3}).to.have.ownPropertyDescriptor('a', {
+   *       configurable: true,
+   *       enumerable: true,
+   *       writable: true,
+   *       value: 3,
+   *     });
+   *
+   *     // Not recommended
+   *     expect({a: 3}).to.not.have.ownPropertyDescriptor('a', {
+   *       configurable: true,
+   *       enumerable: true,
+   *       writable: true,
+   *       value: 1,
+   *     });
+   *
+   * `.ownPropertyDescriptor` changes the target of any assertions that follow
+   * in the chain to be the value of the property descriptor from the original
+   * target object.
+   *
+   *     expect({a: 1}).to.have.ownPropertyDescriptor('a')
+   *       .that.has.property('enumerable', true);
+   *
+   * `.ownPropertyDescriptor` accepts an optional `msg` argument which is a
+   * custom error message to show when the assertion fails. The message can also
+   * be given as the second argument to `expect`. When not providing
+   * `descriptor`, only use the second form.
+   *
+   *     // Recommended
+   *     expect({a: 1}).to.have.ownPropertyDescriptor('a', {
+   *       configurable: true,
+   *       enumerable: true,
+   *       writable: true,
+   *       value: 2,
+   *     }, 'nooo why fail??');
+   *
+   *     // Recommended
+   *     expect({a: 1}, 'nooo why fail??').to.have.ownPropertyDescriptor('a', {
+   *       configurable: true,
+   *       enumerable: true,
+   *       writable: true,
+   *       value: 2,
+   *     });
+   *
+   *     // Recommended
+   *     expect({a: 1}, 'nooo why fail??').to.have.ownPropertyDescriptor('b');
+   *
+   *     // Not recommended
+   *     expect({a: 1})
+   *       .to.have.ownPropertyDescriptor('b', undefined, 'nooo why fail??');
+   *
+   * The above assertion isn't the same thing as not providing `descriptor`.
+   * Instead, it's asserting that the target object has a `b` property
+   * descriptor that's deeply equal to `undefined`.
+   *
+   * The alias `.haveOwnPropertyDescriptor` can be used interchangeably with
+   * `.ownPropertyDescriptor`.
    *
    * @name ownPropertyDescriptor
    * @alias haveOwnPropertyDescriptor
    * @param {String} name
    * @param {Object} descriptor _optional_
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -1283,40 +2403,59 @@ module.exports = function (chai, _) {
   Assertion.addMethod('haveOwnPropertyDescriptor', assertOwnPropertyDescriptor);
 
   /**
-   * ### .length
+   * ### .lengthOf(n[, msg])
    *
-   * Sets the `doLength` flag later used as a chain precursor to a value
-   * comparison for the `length` property.
+   * Asserts that the target's `length` or `size` is equal to the given number
+   * `n`.
    *
-   *     expect('foo').to.have.length.above(2);
-   *     expect([ 1, 2, 3 ]).to.have.length.above(2);
-   *     expect('foo').to.have.length.below(4);
-   *     expect([ 1, 2, 3 ]).to.have.length.below(4);
-   *     expect('foo').to.have.length.within(2,4);
-   *     expect([ 1, 2, 3 ]).to.have.length.within(2,4);
+   *     expect([1, 2, 3]).to.have.lengthOf(3);
+   *     expect('foo').to.have.lengthOf(3);
+   *     expect(new Set([1, 2, 3])).to.have.lengthOf(3);
+   *     expect(new Map([['a', 1], ['b', 2], ['c', 3]])).to.have.lengthOf(3);
    *
-   * *Deprecation notice:* Using `length` as an assertion will be deprecated
-   * in version 2.4.0 and removed in 3.0.0. Code using the old style of
-   * asserting for `length` property value using `length(value)` should be
-   * switched to use `lengthOf(value)` instead.
+   * Add `.not` earlier in the chain to negate `.lengthOf`. However, it's often
+   * best to assert that the target's `length` property is equal to its expected
+   * value, rather than not equal to one of many unexpected values.
    *
-   * @name length
-   * @namespace BDD
-   * @api public
-   */
-
-  /**
-   * ### .lengthOf(value[, message])
+   *     expect('foo').to.have.lengthOf(3); // Recommended
+   *     expect('foo').to.not.have.lengthOf(4); // Not recommended
    *
-   * Asserts that the target's `length` property has
-   * the expected value.
+   * `.lengthOf` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
    *
-   *     expect([ 1, 2, 3]).to.have.lengthOf(3);
-   *     expect('foobar').to.have.lengthOf(6);
+   *     expect([1, 2, 3]).to.have.lengthOf(2, 'nooo why fail??');
+   *     expect([1, 2, 3], 'nooo why fail??').to.have.lengthOf(2);
+   *
+   * `.lengthOf` can also be used as a language chain, causing all `.above`,
+   * `.below`, `.least`, `.most`, and `.within` assertions that follow in the
+   * chain to use the target's `length` property as the target. However, it's
+   * often best to assert that the target's `length` property is equal to its
+   * expected length, rather than asserting that its `length` property falls
+   * within some range of values.
+   *
+   *     // Recommended
+   *     expect([1, 2, 3]).to.have.lengthOf(3);
+   *
+   *     // Not recommended
+   *     expect([1, 2, 3]).to.have.lengthOf.above(2);
+   *     expect([1, 2, 3]).to.have.lengthOf.below(4);
+   *     expect([1, 2, 3]).to.have.lengthOf.at.least(3);
+   *     expect([1, 2, 3]).to.have.lengthOf.at.most(3);
+   *     expect([1, 2, 3]).to.have.lengthOf.within(2,4);
+   *
+   * Due to a compatibility issue, the alias `.length` can't be chained directly
+   * off of an uninvoked method such as `.a`. Therefore, `.length` can't be used
+   * interchangeably with `.lengthOf` in every situation. It's recommended to
+   * always use `.lengthOf` instead of `.length`.
+   *
+   *     expect([1, 2, 3]).to.have.a.length(3); // incompatible; throws error
+   *     expect([1, 2, 3]).to.have.a.lengthOf(3);  // passes as expected
    *
    * @name lengthOf
-   * @param {Number} length
-   * @param {String} message _optional_
+   * @alias length
+   * @param {Number} n
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -1327,33 +2466,60 @@ module.exports = function (chai, _) {
 
   function assertLength (n, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    new Assertion(obj, msg).to.have.property('length');
-    var len = obj.length;
+    var obj = flag(this, 'object')
+      , objType = _.type(obj).toLowerCase()
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi')
+      , descriptor = 'length'
+      , itemsCount;
+
+    switch (objType) {
+      case 'map':
+      case 'set':
+        descriptor = 'size';
+        itemsCount = obj.size;
+        break;
+      default:
+        new Assertion(obj, flagMsg, ssfi, true).to.have.property('length');
+        itemsCount = obj.length;
+    }
 
     this.assert(
-        len == n
-      , 'expected #{this} to have a length of #{exp} but got #{act}'
-      , 'expected #{this} to not have a length of #{act}'
+        itemsCount == n
+      , 'expected #{this} to have a ' + descriptor + ' of #{exp} but got #{act}'
+      , 'expected #{this} to not have a ' + descriptor + ' of #{act}'
       , n
-      , len
+      , itemsCount
     );
   }
 
   Assertion.addChainableMethod('length', assertLength, assertLengthChain);
-  Assertion.addMethod('lengthOf', assertLength);
+  Assertion.addChainableMethod('lengthOf', assertLength, assertLengthChain);
 
   /**
-   * ### .match(regexp)
+   * ### .match(re[, msg])
    *
-   * Asserts that the target matches a regular expression.
+   * Asserts that the target matches the given regular expression `re`.
    *
    *     expect('foobar').to.match(/^foo/);
    *
+   * Add `.not` earlier in the chain to negate `.match`.
+   *
+   *     expect('foobar').to.not.match(/taco/);
+   *
+   * `.match` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect('foobar').to.match(/taco/, 'nooo why fail??');
+   *     expect('foobar', 'nooo why fail??').to.match(/taco/);
+   *
+   * The alias `.matches` can be used interchangeably with `.match`.
+   *
    * @name match
    * @alias matches
-   * @param {RegExp} RegularExpression
-   * @param {String} message _optional_
+   * @param {RegExp} re
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -1371,23 +2537,36 @@ module.exports = function (chai, _) {
   Assertion.addMethod('matches', assertMatch);
 
   /**
-   * ### .string(string)
+   * ### .string(str[, msg])
    *
-   * Asserts that the string target contains another string.
+   * Asserts that the target string contains the given substring `str`.
    *
    *     expect('foobar').to.have.string('bar');
    *
+   * Add `.not` earlier in the chain to negate `.string`.
+   *
+   *     expect('foobar').to.not.have.string('taco');
+   *
+   * `.string` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect('foobar').to.have.string('taco', 'nooo why fail??');
+   *     expect('foobar', 'nooo why fail??').to.have.string('taco');
+   *
    * @name string
-   * @param {String} string
-   * @param {String} message _optional_
+   * @param {String} str
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   Assertion.addMethod('string', function (str, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    new Assertion(obj, msg).is.a('string');
+    var obj = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
+    new Assertion(obj, flagMsg, ssfi, true).is.a('string');
 
     this.assert(
         ~obj.indexOf(str)
@@ -1396,38 +2575,102 @@ module.exports = function (chai, _) {
     );
   });
 
-
   /**
-   * ### .keys(key1, [key2], [...])
+   * ### .keys(key1[, key2[, ...]])
+   *
+   * Asserts that the target object, array, map, or set has the given keys. Only
+   * the target's own inherited properties are included in the search.
+   *
+   * When the target is an object or array, keys can be provided as one or more
+   * string arguments, a single array argument, or a single object argument. In
+   * the latter case, only the keys in the given object matter; the values are
+   * ignored.
+   *
+   *     expect({a: 1, b: 2}).to.have.all.keys('a', 'b');
+   *     expect(['x', 'y']).to.have.all.keys(0, 1);
+   *
+   *     expect({a: 1, b: 2}).to.have.all.keys(['a', 'b']);
+   *     expect(['x', 'y']).to.have.all.keys([0, 1]);
+   *
+   *     expect({a: 1, b: 2}).to.have.all.keys({a: 4, b: 5}); // ignore 4 and 5
+   *     expect(['x', 'y']).to.have.all.keys({0: 4, 1: 5}); // ignore 4 and 5
+   *
+   * When the target is a map or set, each key must be provided as a separate
+   * argument.
    *
-   * Asserts that the target contains any or all of the passed-in keys.
-   * Use in combination with `any`, `all`, `contains`, or `have` will affect
-   * what will pass.
+   *     expect(new Map([['a', 1], ['b', 2]])).to.have.all.keys('a', 'b');
+   *     expect(new Set(['a', 'b'])).to.have.all.keys('a', 'b');
    *
-   * When used in conjunction with `any`, at least one key that is passed
-   * in must exist in the target object. This is regardless whether or not
-   * the `have` or `contain` qualifiers are used. Note, either `any` or `all`
-   * should be used in the assertion. If neither are used, the assertion is
-   * defaulted to `all`.
+   * Because `.keys` does different things based on the target's type, it's
+   * important to check the target's type before using `.keys`. See the `.a` doc
+   * for info on testing a target's type.
    *
-   * When both `all` and `contain` are used, the target object must have at
-   * least all of the passed-in keys but may have more keys not listed.
+   *     expect({a: 1, b: 2}).to.be.an('object').that.has.all.keys('a', 'b');
    *
-   * When both `all` and `have` are used, the target object must both contain
-   * all of the passed-in keys AND the number of keys in the target object must
-   * match the number of keys passed in (in other words, a target object must
-   * have all and only all of the passed-in keys).
+   * By default, strict (`===`) equality is used to compare keys of maps and
+   * sets. Add `.deep` earlier in the chain to use deep equality instead. See
+   * the `deep-eql` project page for info on the deep equality algorithm:
+   * https://github.com/chaijs/deep-eql.
    *
-   *     expect({ foo: 1, bar: 2 }).to.have.any.keys('foo', 'baz');
-   *     expect({ foo: 1, bar: 2 }).to.have.any.keys('foo');
-   *     expect({ foo: 1, bar: 2 }).to.contain.any.keys('bar', 'baz');
-   *     expect({ foo: 1, bar: 2 }).to.contain.any.keys(['foo']);
-   *     expect({ foo: 1, bar: 2 }).to.contain.any.keys({'foo': 6});
-   *     expect({ foo: 1, bar: 2 }).to.have.all.keys(['bar', 'foo']);
-   *     expect({ foo: 1, bar: 2 }).to.have.all.keys({'bar': 6, 'foo': 7});
-   *     expect({ foo: 1, bar: 2, baz: 3 }).to.contain.all.keys(['bar', 'foo']);
-   *     expect({ foo: 1, bar: 2, baz: 3 }).to.contain.all.keys({'bar': 6});
+   *     // Target set deeply (but not strictly) has key `{a: 1}`
+   *     expect(new Set([{a: 1}])).to.have.all.deep.keys([{a: 1}]);
+   *     expect(new Set([{a: 1}])).to.not.have.all.keys([{a: 1}]);
    *
+   * By default, the target must have all of the given keys and no more. Add
+   * `.any` earlier in the chain to only require that the target have at least
+   * one of the given keys. Also, add `.not` earlier in the chain to negate
+   * `.keys`. It's often best to add `.any` when negating `.keys`, and to use
+   * `.all` when asserting `.keys` without negation.
+   *
+   * When negating `.keys`, `.any` is preferred because `.not.any.keys` asserts
+   * exactly what's expected of the output, whereas `.not.all.keys` creates
+   * uncertain expectations.
+   *
+   *     // Recommended; asserts that target doesn't have any of the given keys
+   *     expect({a: 1, b: 2}).to.not.have.any.keys('c', 'd');
+   *
+   *     // Not recommended; asserts that target doesn't have all of the given
+   *     // keys but may or may not have some of them
+   *     expect({a: 1, b: 2}).to.not.have.all.keys('c', 'd');
+   *
+   * When asserting `.keys` without negation, `.all` is preferred because
+   * `.all.keys` asserts exactly what's expected of the output, whereas
+   * `.any.keys` creates uncertain expectations.
+   *
+   *     // Recommended; asserts that target has all the given keys
+   *     expect({a: 1, b: 2}).to.have.all.keys('a', 'b');
+   *
+   *     // Not recommended; asserts that target has at least one of the given
+   *     // keys but may or may not have more of them
+   *     expect({a: 1, b: 2}).to.have.any.keys('a', 'b');
+   *
+   * Note that `.all` is used by default when neither `.all` nor `.any` appear
+   * earlier in the chain. However, it's often best to add `.all` anyway because
+   * it improves readability.
+   *
+   *     // Both assertions are identical
+   *     expect({a: 1, b: 2}).to.have.all.keys('a', 'b'); // Recommended
+   *     expect({a: 1, b: 2}).to.have.keys('a', 'b'); // Not recommended
+   *
+   * Add `.include` earlier in the chain to require that the target's keys be a
+   * superset of the expected keys, rather than identical sets.
+   *
+   *     // Target object's keys are a superset of ['a', 'b'] but not identical
+   *     expect({a: 1, b: 2, c: 3}).to.include.all.keys('a', 'b');
+   *     expect({a: 1, b: 2, c: 3}).to.not.have.all.keys('a', 'b');
+   *
+   * However, if `.any` and `.include` are combined, only the `.any` takes
+   * effect. The `.include` is ignored in this case.
+   *
+   *     // Both assertions are identical
+   *     expect({a: 1}).to.have.any.keys('a', 'b');
+   *     expect({a: 1}).to.include.any.keys('a', 'b');
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect({a: 1}, 'nooo why fail??').to.have.key('b');
+   *
+   * The alias `.key` can be used interchangeably with `.keys`.
    *
    * @name keys
    * @alias key
@@ -1438,29 +2681,62 @@ module.exports = function (chai, _) {
 
   function assertKeys (keys) {
     var obj = flag(this, 'object')
+      , objType = _.type(obj)
+      , keysType = _.type(keys)
+      , ssfi = flag(this, 'ssfi')
+      , isDeep = flag(this, 'deep')
       , str
+      , deepStr = ''
+      , actual
       , ok = true
-      , mixedArgsMsg = 'keys must be given single argument of Array|Object|String, or multiple String arguments';
+      , flagMsg = flag(this, 'message');
 
-    switch (_.type(keys)) {
-      case "array":
-        if (arguments.length > 1) throw (new Error(mixedArgsMsg));
-        break;
-      case "object":
-        if (arguments.length > 1) throw (new Error(mixedArgsMsg));
-        keys = Object.keys(keys);
-        break;
-      default:
+    flagMsg = flagMsg ? flagMsg + ': ' : '';
+    var mixedArgsMsg = flagMsg + 'when testing keys against an object or an array you must give a single Array|Object|String argument or multiple String arguments';
+
+    if (objType === 'Map' || objType === 'Set') {
+      deepStr = isDeep ? 'deeply ' : '';
+      actual = [];
+
+      // Map and Set '.keys' aren't supported in IE 11. Therefore, use .forEach.
+      obj.forEach(function (val, key) { actual.push(key) });
+
+      if (keysType !== 'Array') {
         keys = Array.prototype.slice.call(arguments);
+      }
+    } else {
+      actual = _.getOwnEnumerableProperties(obj);
+
+      switch (keysType) {
+        case 'Array':
+          if (arguments.length > 1) {
+            throw new AssertionError(mixedArgsMsg, undefined, ssfi);
+          }
+          break;
+        case 'Object':
+          if (arguments.length > 1) {
+            throw new AssertionError(mixedArgsMsg, undefined, ssfi);
+          }
+          keys = Object.keys(keys);
+          break;
+        default:
+          keys = Array.prototype.slice.call(arguments);
+      }
+
+      // Only stringify non-Symbols because Symbols would become "Symbol()"
+      keys = keys.map(function (val) {
+        return typeof val === 'symbol' ? val : String(val);
+      });
     }
 
-    if (!keys.length) throw new Error('keys required');
+    if (!keys.length) {
+      throw new AssertionError(flagMsg + 'keys required', undefined, ssfi);
+    }
 
-    var actual = Object.keys(obj)
-      , expected = keys
-      , len = keys.length
+    var len = keys.length
       , any = flag(this, 'any')
-      , all = flag(this, 'all');
+      , all = flag(this, 'all')
+      , expected = keys;
 
     if (!any && !all) {
       all = true;
@@ -1468,25 +2744,37 @@ module.exports = function (chai, _) {
 
     // Has any
     if (any) {
-      var intersection = expected.filter(function(key) {
-        return ~actual.indexOf(key);
+      ok = expected.some(function(expectedKey) {
+        return actual.some(function(actualKey) {
+          if (isDeep) {
+            return _.eql(expectedKey, actualKey);
+          } else {
+            return expectedKey === actualKey;
+          }
+        });
       });
-      ok = intersection.length > 0;
     }
 
     // Has all
     if (all) {
-      ok = keys.every(function(key){
-        return ~actual.indexOf(key);
+      ok = expected.every(function(expectedKey) {
+        return actual.some(function(actualKey) {
+          if (isDeep) {
+            return _.eql(expectedKey, actualKey);
+          } else {
+            return expectedKey === actualKey;
+          }
+        });
       });
-      if (!flag(this, 'negate') && !flag(this, 'contains')) {
+
+      if (!flag(this, 'contains')) {
         ok = ok && keys.length == actual.length;
       }
     }
 
     // Key string
     if (len > 1) {
-      keys = keys.map(function(key){
+      keys = keys.map(function(key) {
         return _.inspect(key);
       });
       var last = keys.pop();
@@ -1509,10 +2797,10 @@ module.exports = function (chai, _) {
     // Assertion
     this.assert(
         ok
-      , 'expected #{this} to ' + str
-      , 'expected #{this} to not ' + str
-      , expected.slice(0).sort()
-      , actual.sort()
+      , 'expected #{this} to ' + deepStr + str
+      , 'expected #{this} to not ' + deepStr + str
+      , expected.slice(0).sort(_.compareByInspect)
+      , actual.sort(_.compareByInspect)
       , true
     );
   }
@@ -1521,156 +2809,294 @@ module.exports = function (chai, _) {
   Assertion.addMethod('key', assertKeys);
 
   /**
-   * ### .throw(constructor)
+   * ### .throw([errorLike], [errMsgMatcher], [msg])
    *
-   * Asserts that the function target will throw a specific error, or specific type of error
-   * (as determined using `instanceof`), optionally with a RegExp or string inclusion test
-   * for the error's message.
+   * When no arguments are provided, `.throw` invokes the target function and
+   * asserts that an error is thrown.
    *
-   *     var err = new ReferenceError('This is a bad function.');
-   *     var fn = function () { throw err; }
-   *     expect(fn).to.throw(ReferenceError);
-   *     expect(fn).to.throw(Error);
-   *     expect(fn).to.throw(/bad function/);
-   *     expect(fn).to.not.throw('good function');
-   *     expect(fn).to.throw(ReferenceError, /bad function/);
-   *     expect(fn).to.throw(err);
+   *     var badFn = function () { throw new TypeError('Illegal salmon!'); };
    *
-   * Please note that when a throw expectation is negated, it will check each
-   * parameter independently, starting with error constructor type. The appropriate way
-   * to check for the existence of a type of error but for a message that does not match
-   * is to use `and`.
+   *     expect(badFn).to.throw();
    *
-   *     expect(fn).to.throw(ReferenceError)
-   *        .and.not.throw(/good function/);
+   * When one argument is provided, and it's an error constructor, `.throw`
+   * invokes the target function and asserts that an error is thrown that's an
+   * instance of that error constructor.
    *
-   * @name throw
-   * @alias throws
-   * @alias Throw
-   * @param {ErrorConstructor} constructor
-   * @param {String|RegExp} expected error message
-   * @param {String} message _optional_
-   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
-   * @returns error for chaining (null if no error)
-   * @namespace BDD
-   * @api public
-   */
-
-  function assertThrows (constructor, errMsg, msg) {
-    if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-    new Assertion(obj, msg).is.a('function');
-
-    var thrown = false
-      , desiredError = null
-      , name = null
-      , thrownError = null;
-
-    if (arguments.length === 0) {
-      errMsg = null;
-      constructor = null;
-    } else if (constructor && (constructor instanceof RegExp || 'string' === typeof constructor)) {
-      errMsg = constructor;
-      constructor = null;
-    } else if (constructor && constructor instanceof Error) {
-      desiredError = constructor;
-      constructor = null;
-      errMsg = null;
-    } else if (typeof constructor === 'function') {
-      name = constructor.prototype.name;
-      if (!name || (name === 'Error' && constructor !== Error)) {
-        name = constructor.name || (new constructor()).name;
-      }
-    } else {
-      constructor = null;
-    }
-
-    try {
+   *     var badFn = function () { throw new TypeError('Illegal salmon!'); };
+   *
+   *     expect(badFn).to.throw(TypeError);
+   *
+   * When one argument is provided, and it's an error instance, `.throw` invokes
+   * the target function and asserts that an error is thrown that's strictly
+   * (`===`) equal to that error instance.
+   *
+   *     var err = new TypeError('Illegal salmon!');
+   *     var badFn = function () { throw err; };
+   *
+   *     expect(badFn).to.throw(err);
+   *
+   * When one argument is provided, and it's a string, `.throw` invokes the
+   * target function and asserts that an error is thrown with a message that
+   * contains that string.
+   *
+   *     var badFn = function () { throw new TypeError('Illegal salmon!'); };
+   *
+   *     expect(badFn).to.throw('salmon');
+   *
+   * When one argument is provided, and it's a regular expression, `.throw`
+   * invokes the target function and asserts that an error is thrown with a
+   * message that matches that regular expression.
+   *
+   *     var badFn = function () { throw new TypeError('Illegal salmon!'); };
+   *
+   *     expect(badFn).to.throw(/salmon/);
+   *
+   * When two arguments are provided, and the first is an error instance or
+   * constructor, and the second is a string or regular expression, `.throw`
+   * invokes the function and asserts that an error is thrown that fulfills both
+   * conditions as described above.
+   *
+   *     var err = new TypeError('Illegal salmon!');
+   *     var badFn = function () { throw err; };
+   *
+   *     expect(badFn).to.throw(TypeError, 'salmon');
+   *     expect(badFn).to.throw(TypeError, /salmon/);
+   *     expect(badFn).to.throw(err, 'salmon');
+   *     expect(badFn).to.throw(err, /salmon/);
+   *
+   * Add `.not` earlier in the chain to negate `.throw`.
+   *
+   *     var goodFn = function () {};
+   *
+   *     expect(goodFn).to.not.throw();
+   *
+   * However, it's dangerous to negate `.throw` when providing any arguments.
+   * The problem is that it creates uncertain expectations by asserting that the
+   * target either doesn't throw an error, or that it throws an error but of a
+   * different type than the given type, or that it throws an error of the given
+   * type but with a message that doesn't include the given string. It's often
+   * best to identify the exact output that's expected, and then write an
+   * assertion that only accepts that exact output.
+   *
+   * When the target isn't expected to throw an error, it's often best to assert
+   * exactly that.
+   *
+   *     var goodFn = function () {};
+   *
+   *     expect(goodFn).to.not.throw(); // Recommended
+   *     expect(goodFn).to.not.throw(ReferenceError, 'x'); // Not recommended
+   *
+   * When the target is expected to throw an error, it's often best to assert
+   * that the error is of its expected type, and has a message that includes an
+   * expected string, rather than asserting that it doesn't have one of many
+   * unexpected types, and doesn't have a message that includes some string.
+   *
+   *     var badFn = function () { throw new TypeError('Illegal salmon!'); };
+   *
+   *     expect(badFn).to.throw(TypeError, 'salmon'); // Recommended
+   *     expect(badFn).to.not.throw(ReferenceError, 'x'); // Not recommended
+   *
+   * `.throw` changes the target of any assertions that follow in the chain to
+   * be the error object that's thrown.
+   *
+   *     var err = new TypeError('Illegal salmon!');
+   *     err.code = 42;
+   *     var badFn = function () { throw err; };
+   *
+   *     expect(badFn).to.throw(TypeError).with.property('code', 42);
+   *
+   * `.throw` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`. When not providing two arguments, always use
+   * the second form.
+   *
+   *     var goodFn = function () {};
+   *
+   *     expect(goodFn).to.throw(TypeError, 'x', 'nooo why fail??');
+   *     expect(goodFn, 'nooo why fail??').to.throw();
+   *
+   * Due to limitations in ES5, `.throw` may not always work as expected when
+   * using a transpiler such as Babel or TypeScript. In particular, it may
+   * produce unexpected results when subclassing the built-in `Error` object and
+   * then passing the subclassed constructor to `.throw`. See your transpiler's
+   * docs for details:
+   *
+   * - ([Babel](https://babeljs.io/docs/usage/caveats/#classes))
+   * - ([TypeScript](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#extending-built-ins-like-error-array-and-map-may-no-longer-work))
+   *
+   * Beware of some common mistakes when using the `throw` assertion. One common
+   * mistake is to accidentally invoke the function yourself instead of letting
+   * the `throw` assertion invoke the function for you. For example, when
+   * testing if a function named `fn` throws, provide `fn` instead of `fn()` as
+   * the target for the assertion.
+   *
+   *     expect(fn).to.throw();     // Good! Tests `fn` as desired
+   *     expect(fn()).to.throw();   // Bad! Tests result of `fn()`, not `fn`
+   *
+   * If you need to assert that your function `fn` throws when passed certain
+   * arguments, then wrap a call to `fn` inside of another function.
+   *
+   *     expect(function () { fn(42); }).to.throw();  // Function expression
+   *     expect(() => fn(42)).to.throw();             // ES6 arrow function
+   *
+   * Another common mistake is to provide an object method (or any stand-alone
+   * function that relies on `this`) as the target of the assertion. Doing so is
+   * problematic because the `this` context will be lost when the function is
+   * invoked by `.throw`; there's no way for it to know what `this` is supposed
+   * to be. There are two ways around this problem. One solution is to wrap the
+   * method or function call inside of another function. Another solution is to
+   * use `bind`.
+   *
+   *     expect(function () { cat.meow(); }).to.throw();  // Function expression
+   *     expect(() => cat.meow()).to.throw();             // ES6 arrow function
+   *     expect(cat.meow.bind(cat)).to.throw();           // Bind
+   *
+   * Finally, it's worth mentioning that it's a best practice in JavaScript to
+   * only throw `Error` and derivatives of `Error` such as `ReferenceError`,
+   * `TypeError`, and user-defined objects that extend `Error`. No other type of
+   * value will generate a stack trace when initialized. With that said, the
+   * `throw` assertion does technically support any type of value being thrown,
+   * not just `Error` and its derivatives.
+   *
+   * The aliases `.throws` and `.Throw` can be used interchangeably with
+   * `.throw`.
+   *
+   * @name throw
+   * @alias throws
+   * @alias Throw
+   * @param {Error|ErrorConstructor} errorLike
+   * @param {String|RegExp} errMsgMatcher error message
+   * @param {String} msg _optional_
+   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+   * @returns error for chaining (null if no error)
+   * @namespace BDD
+   * @api public
+   */
+
+  function assertThrows (errorLike, errMsgMatcher, msg) {
+    if (msg) flag(this, 'message', msg);
+    var obj = flag(this, 'object')
+      , ssfi = flag(this, 'ssfi')
+      , flagMsg = flag(this, 'message')
+      , negate = flag(this, 'negate') || false;
+    new Assertion(obj, flagMsg, ssfi, true).is.a('function');
+
+    if (errorLike instanceof RegExp || typeof errorLike === 'string') {
+      errMsgMatcher = errorLike;
+      errorLike = null;
+    }
+
+    var caughtErr;
+    try {
       obj();
     } catch (err) {
-      // first, check desired error
-      if (desiredError) {
-        this.assert(
-            err === desiredError
-          , 'expected #{this} to throw #{exp} but #{act} was thrown'
-          , 'expected #{this} to not throw #{exp}'
-          , (desiredError instanceof Error ? desiredError.toString() : desiredError)
-          , (err instanceof Error ? err.toString() : err)
-        );
+      caughtErr = err;
+    }
 
-        flag(this, 'object', err);
-        return this;
+    // If we have the negate flag enabled and at least one valid argument it means we do expect an error
+    // but we want it to match a given set of criteria
+    var everyArgIsUndefined = errorLike === undefined && errMsgMatcher === undefined;
+
+    // If we've got the negate flag enabled and both args, we should only fail if both aren't compatible
+    // See Issue #551 and PR #683@GitHub
+    var everyArgIsDefined = Boolean(errorLike && errMsgMatcher);
+    var errorLikeFail = false;
+    var errMsgMatcherFail = false;
+
+    // Checking if error was thrown
+    if (everyArgIsUndefined || !everyArgIsUndefined && !negate) {
+      // We need this to display results correctly according to their types
+      var errorLikeString = 'an error';
+      if (errorLike instanceof Error) {
+        errorLikeString = '#{exp}';
+      } else if (errorLike) {
+        errorLikeString = _.checkError.getConstructorName(errorLike);
       }
 
-      // next, check constructor
-      if (constructor) {
-        this.assert(
-            err instanceof constructor
-          , 'expected #{this} to throw #{exp} but #{act} was thrown'
-          , 'expected #{this} to not throw #{exp} but #{act} was thrown'
-          , name
-          , (err instanceof Error ? err.toString() : err)
-        );
+      this.assert(
+          caughtErr
+        , 'expected #{this} to throw ' + errorLikeString
+        , 'expected #{this} to not throw an error but #{act} was thrown'
+        , errorLike && errorLike.toString()
+        , (caughtErr instanceof Error ?
+            caughtErr.toString() : (typeof caughtErr === 'string' ? caughtErr : caughtErr &&
+                                    _.checkError.getConstructorName(caughtErr)))
+      );
+    }
 
-        if (!errMsg) {
-          flag(this, 'object', err);
-          return this;
+    if (errorLike && caughtErr) {
+      // We should compare instances only if `errorLike` is an instance of `Error`
+      if (errorLike instanceof Error) {
+        var isCompatibleInstance = _.checkError.compatibleInstance(caughtErr, errorLike);
+
+        if (isCompatibleInstance === negate) {
+          // These checks were created to ensure we won't fail too soon when we've got both args and a negate
+          // See Issue #551 and PR #683@GitHub
+          if (everyArgIsDefined && negate) {
+            errorLikeFail = true;
+          } else {
+            this.assert(
+                negate
+              , 'expected #{this} to throw #{exp} but #{act} was thrown'
+              , 'expected #{this} to not throw #{exp}' + (caughtErr && !negate ? ' but #{act} was thrown' : '')
+              , errorLike.toString()
+              , caughtErr.toString()
+            );
+          }
         }
       }
 
-      // next, check message
-      var message = 'error' === _.type(err) && "message" in err
-        ? err.message
-        : '' + err;
-
-      if ((message != null) && errMsg && errMsg instanceof RegExp) {
-        this.assert(
-            errMsg.exec(message)
-          , 'expected #{this} to throw error matching #{exp} but got #{act}'
-          , 'expected #{this} to throw error not matching #{exp}'
-          , errMsg
-          , message
-        );
-
-        flag(this, 'object', err);
-        return this;
-      } else if ((message != null) && errMsg && 'string' === typeof errMsg) {
-        this.assert(
-            ~message.indexOf(errMsg)
-          , 'expected #{this} to throw error including #{exp} but got #{act}'
-          , 'expected #{this} to throw error not including #{act}'
-          , errMsg
-          , message
-        );
-
-        flag(this, 'object', err);
-        return this;
-      } else {
-        thrown = true;
-        thrownError = err;
+      var isCompatibleConstructor = _.checkError.compatibleConstructor(caughtErr, errorLike);
+      if (isCompatibleConstructor === negate) {
+        if (everyArgIsDefined && negate) {
+            errorLikeFail = true;
+        } else {
+          this.assert(
+              negate
+            , 'expected #{this} to throw #{exp} but #{act} was thrown'
+            , 'expected #{this} to not throw #{exp}' + (caughtErr ? ' but #{act} was thrown' : '')
+            , (errorLike instanceof Error ? errorLike.toString() : errorLike && _.checkError.getConstructorName(errorLike))
+            , (caughtErr instanceof Error ? caughtErr.toString() : caughtErr && _.checkError.getConstructorName(caughtErr))
+          );
+        }
       }
     }
 
-    var actuallyGot = ''
-      , expectedThrown = name !== null
-        ? name
-        : desiredError
-          ? '#{exp}' //_.inspect(desiredError)
-          : 'an error';
+    if (caughtErr && errMsgMatcher !== undefined && errMsgMatcher !== null) {
+      // Here we check compatible messages
+      var placeholder = 'including';
+      if (errMsgMatcher instanceof RegExp) {
+        placeholder = 'matching'
+      }
 
-    if (thrown) {
-      actuallyGot = ' but #{act} was thrown'
+      var isCompatibleMessage = _.checkError.compatibleMessage(caughtErr, errMsgMatcher);
+      if (isCompatibleMessage === negate) {
+        if (everyArgIsDefined && negate) {
+            errMsgMatcherFail = true;
+        } else {
+          this.assert(
+            negate
+            , 'expected #{this} to throw error ' + placeholder + ' #{exp} but got #{act}'
+            , 'expected #{this} to throw error not ' + placeholder + ' #{exp}'
+            ,  errMsgMatcher
+            ,  _.checkError.getMessage(caughtErr)
+          );
+        }
+      }
     }
 
-    this.assert(
-        thrown === true
-      , 'expected #{this} to throw ' + expectedThrown + actuallyGot
-      , 'expected #{this} to not throw ' + expectedThrown + actuallyGot
-      , (desiredError instanceof Error ? desiredError.toString() : desiredError)
-      , (thrownError instanceof Error ? thrownError.toString() : thrownError)
-    );
+    // If both assertions failed and both should've matched we throw an error
+    if (errorLikeFail && errMsgMatcherFail) {
+      this.assert(
+        negate
+        , 'expected #{this} to throw #{exp} but #{act} was thrown'
+        , 'expected #{this} to not throw #{exp}' + (caughtErr ? ' but #{act} was thrown' : '')
+        , (errorLike instanceof Error ? errorLike.toString() : errorLike && _.checkError.getConstructorName(errorLike))
+        , (caughtErr instanceof Error ? caughtErr.toString() : caughtErr && _.checkError.getConstructorName(caughtErr))
+      );
+    }
 
-    flag(this, 'object', thrownError);
+    flag(this, 'object', caughtErr);
   };
 
   Assertion.addMethod('throw', assertThrows);
@@ -1678,24 +3104,66 @@ module.exports = function (chai, _) {
   Assertion.addMethod('Throw', assertThrows);
 
   /**
-   * ### .respondTo(method)
+   * ### .respondTo(method[, msg])
+   *
+   * When the target is a non-function object, `.respondTo` asserts that the
+   * target has a method with the given name `method`. The method can be own or
+   * inherited, and it can be enumerable or non-enumerable.
+   *
+   *     function Cat () {}
+   *     Cat.prototype.meow = function () {};
+   *
+   *     expect(new Cat()).to.respondTo('meow');
+   *
+   * When the target is a function, `.respondTo` asserts that the target's
+   * `prototype` property has a method with the given name `method`. Again, the
+   * method can be own or inherited, and it can be enumerable or non-enumerable.
    *
-   * Asserts that the object or class target will respond to a method.
+   *     function Cat () {}
+   *     Cat.prototype.meow = function () {};
    *
-   *     Klass.prototype.bar = function(){};
-   *     expect(Klass).to.respondTo('bar');
-   *     expect(obj).to.respondTo('bar');
+   *     expect(Cat).to.respondTo('meow');
    *
-   * To check if a constructor will respond to a static function,
-   * set the `itself` flag.
+   * Add `.itself` earlier in the chain to force `.respondTo` to treat the
+   * target as a non-function object, even if it's a function. Thus, it asserts
+   * that the target has a method with the given name `method`, rather than
+   * asserting that the target's `prototype` property has a method with the
+   * given name `method`.
    *
-   *     Klass.baz = function(){};
-   *     expect(Klass).itself.to.respondTo('baz');
+   *     function Cat () {}
+   *     Cat.prototype.meow = function () {};
+   *     Cat.hiss = function () {};
+   *
+   *     expect(Cat).itself.to.respondTo('hiss').but.not.respondTo('meow');
+   *
+   * When not adding `.itself`, it's important to check the target's type before
+   * using `.respondTo`. See the `.a` doc for info on checking a target's type.
+   *
+   *     function Cat () {}
+   *     Cat.prototype.meow = function () {};
+   *
+   *     expect(new Cat()).to.be.an('object').that.respondsTo('meow');
+   *
+   * Add `.not` earlier in the chain to negate `.respondTo`.
+   *
+   *     function Dog () {}
+   *     Dog.prototype.bark = function () {};
+   *
+   *     expect(new Dog()).to.not.respondTo('meow');
+   *
+   * `.respondTo` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect({}).to.respondTo('meow', 'nooo why fail??');
+   *     expect({}, 'nooo why fail??').to.respondTo('meow');
+   *
+   * The alias `.respondsTo` can be used interchangeably with `.respondTo`.
    *
    * @name respondTo
    * @alias respondsTo
    * @param {String} method
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -1704,7 +3172,7 @@ module.exports = function (chai, _) {
     if (msg) flag(this, 'message', msg);
     var obj = flag(this, 'object')
       , itself = flag(this, 'itself')
-      , context = ('function' === _.type(obj) && !itself)
+      , context = ('function' === typeof obj && !itself)
         ? obj.prototype[method]
         : obj[method];
 
@@ -1721,14 +3189,17 @@ module.exports = function (chai, _) {
   /**
    * ### .itself
    *
-   * Sets the `itself` flag, later used by the `respondTo` assertion.
+   * Forces all `.respondTo` assertions that follow in the chain to behave as if
+   * the target is a non-function object, even if it's a function. Thus, it
+   * causes `.respondTo` to assert that the target has a method with the given
+   * name, rather than asserting that the target's `prototype` property has a
+   * method with the given name.
    *
-   *     function Foo() {}
-   *     Foo.bar = function() {}
-   *     Foo.prototype.baz = function() {}
+   *     function Cat () {}
+   *     Cat.prototype.meow = function () {};
+   *     Cat.hiss = function () {};
    *
-   *     expect(Foo).itself.to.respondTo('bar');
-   *     expect(Foo).itself.not.to.respondTo('baz');
+   *     expect(Cat).itself.to.respondTo('hiss').but.not.respondTo('meow');
    *
    * @name itself
    * @namespace BDD
@@ -1740,16 +3211,39 @@ module.exports = function (chai, _) {
   });
 
   /**
-   * ### .satisfy(method)
+   * ### .satisfy(matcher[, msg])
+   *
+   * Invokes the given `matcher` function with the target being passed as the
+   * first argument, and asserts that the value returned is truthy.
+   *
+   *     expect(1).to.satisfy(function(num) {
+   *       return num > 0;
+   *     });
+   *
+   * Add `.not` earlier in the chain to negate `.satisfy`.
+   *
+   *     expect(1).to.not.satisfy(function(num) {
+   *       return num > 2;
+   *     });
+   *
+   * `.satisfy` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
    *
-   * Asserts that the target passes a given truth test.
+   *     expect(1).to.satisfy(function(num) {
+   *       return num > 2;
+   *     }, 'nooo why fail??');
    *
-   *     expect(1).to.satisfy(function(num) { return num > 0; });
+   *     expect(1, 'nooo why fail??').to.satisfy(function(num) {
+   *       return num > 2;
+   *     });
+   *
+   * The alias `.satisfies` can be used interchangeably with `.satisfy`.
    *
    * @name satisfy
    * @alias satisfies
    * @param {Function} matcher
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
@@ -1762,7 +3256,7 @@ module.exports = function (chai, _) {
         result
       , 'expected #{this} to satisfy ' + _.objDisplay(matcher)
       , 'expected #{this} to not satisfy' + _.objDisplay(matcher)
-      , this.negate ? false : true
+      , flag(this, 'negate') ? false : true
       , result
     );
   }
@@ -1771,28 +3265,57 @@ module.exports = function (chai, _) {
   Assertion.addMethod('satisfies', satisfy);
 
   /**
-   * ### .closeTo(expected, delta)
+   * ### .closeTo(expected, delta[, msg])
    *
-   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   * Asserts that the target is a number that's within a given +/- `delta` range
+   * of the given number `expected`. However, it's often best to assert that the
+   * target is equal to its expected value.
+   *
+   *     // Recommended
+   *     expect(1.5).to.equal(1.5);
    *
+   *     // Not recommended
    *     expect(1.5).to.be.closeTo(1, 0.5);
+   *     expect(1.5).to.be.closeTo(2, 0.5);
+   *     expect(1.5).to.be.closeTo(1, 1);
+   *
+   * Add `.not` earlier in the chain to negate `.closeTo`.
+   *
+   *     expect(1.5).to.equal(1.5); // Recommended
+   *     expect(1.5).to.not.be.closeTo(3, 1); // Not recommended
+   *
+   * `.closeTo` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect(1.5).to.be.closeTo(3, 1, 'nooo why fail??');
+   *     expect(1.5, 'nooo why fail??').to.be.closeTo(3, 1);
+   *
+   * The alias `.approximately` can be used interchangeably with `.closeTo`.
    *
    * @name closeTo
    * @alias approximately
    * @param {Number} expected
    * @param {Number} delta
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   function closeTo(expected, delta, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
-
-    new Assertion(obj, msg).is.a('number');
-    if (_.type(expected) !== 'number' || _.type(delta) !== 'number') {
-      throw new Error('the arguments to closeTo or approximately must be numbers');
+    var obj = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
+
+    new Assertion(obj, flagMsg, ssfi, true).is.a('number');
+    if (typeof expected !== 'number' || typeof delta !== 'number') {
+      flagMsg = flagMsg ? flagMsg + ': ' : '';
+      throw new AssertionError(
+          flagMsg + 'the arguments to closeTo or approximately must be numbers',
+          undefined,
+          ssfi
+      );
     }
 
     this.assert(
@@ -1805,93 +3328,176 @@ module.exports = function (chai, _) {
   Assertion.addMethod('closeTo', closeTo);
   Assertion.addMethod('approximately', closeTo);
 
-  function isSubsetOf(subset, superset, cmp) {
-    return subset.every(function(elem) {
-      if (!cmp) return superset.indexOf(elem) !== -1;
+  // Note: Duplicates are ignored if testing for inclusion instead of sameness.
+  function isSubsetOf(subset, superset, cmp, contains, ordered) {
+    if (!contains) {
+      if (subset.length !== superset.length) return false;
+      superset = superset.slice();
+    }
+
+    return subset.every(function(elem, idx) {
+      if (ordered) return cmp ? cmp(elem, superset[idx]) : elem === superset[idx];
 
-      return superset.some(function(elem2) {
-        return cmp(elem, elem2);
+      if (!cmp) {
+        var matchIdx = superset.indexOf(elem);
+        if (matchIdx === -1) return false;
+
+        // Remove match from superset so not counted twice if duplicate in subset.
+        if (!contains) superset.splice(matchIdx, 1);
+        return true;
+      }
+
+      return superset.some(function(elem2, matchIdx) {
+        if (!cmp(elem, elem2)) return false;
+
+        // Remove match from superset so not counted twice if duplicate in subset.
+        if (!contains) superset.splice(matchIdx, 1);
+        return true;
       });
-    })
+    });
   }
 
   /**
-   * ### .members(set)
+   * ### .members(set[, msg])
+   *
+   * Asserts that the target array has the same members as the given array
+   * `set`.
+   *
+   *     expect([1, 2, 3]).to.have.members([2, 1, 3]);
+   *     expect([1, 2, 2]).to.have.members([2, 1, 2]);
+   *
+   * By default, members are compared using strict (`===`) equality. Add `.deep`
+   * earlier in the chain to use deep equality instead. See the `deep-eql`
+   * project page for info on the deep equality algorithm:
+   * https://github.com/chaijs/deep-eql.
+   *
+   *     // Target array deeply (but not strictly) has member `{a: 1}`
+   *     expect([{a: 1}]).to.have.deep.members([{a: 1}]);
+   *     expect([{a: 1}]).to.not.have.members([{a: 1}]);
+   *
+   * By default, order doesn't matter. Add `.ordered` earlier in the chain to
+   * require that members appear in the same order.
+   *
+   *     expect([1, 2, 3]).to.have.ordered.members([1, 2, 3]);
+   *     expect([1, 2, 3]).to.have.members([2, 1, 3])
+   *       .but.not.ordered.members([2, 1, 3]);
+   *
+   * By default, both arrays must be the same size. Add `.include` earlier in
+   * the chain to require that the target's members be a superset of the
+   * expected members. Note that duplicates are ignored in the subset when
+   * `.include` is added.
+   *
+   *     // Target array is a superset of [1, 2] but not identical
+   *     expect([1, 2, 3]).to.include.members([1, 2]);
+   *     expect([1, 2, 3]).to.not.have.members([1, 2]);
+   *
+   *     // Duplicates in the subset are ignored
+   *     expect([1, 2, 3]).to.include.members([1, 2, 2, 2]);
    *
-   * Asserts that the target is a superset of `set`,
-   * or that the target and `set` have the same strictly-equal (===) members.
-   * Alternately, if the `deep` flag is set, set members are compared for deep
-   * equality.
+   * `.deep`, `.ordered`, and `.include` can all be combined. However, if
+   * `.include` and `.ordered` are combined, the ordering begins at the start of
+   * both arrays.
    *
-   *     expect([1, 2, 3]).to.include.members([3, 2]);
-   *     expect([1, 2, 3]).to.not.include.members([3, 2, 8]);
+   *     expect([{a: 1}, {b: 2}, {c: 3}])
+   *       .to.include.deep.ordered.members([{a: 1}, {b: 2}])
+   *       .but.not.include.deep.ordered.members([{b: 2}, {c: 3}]);
    *
-   *     expect([4, 2]).to.have.members([2, 4]);
-   *     expect([5, 2]).to.not.have.members([5, 2, 1]);
+   * Add `.not` earlier in the chain to negate `.members`. However, it's
+   * dangerous to do so. The problem is that it creates uncertain expectations
+   * by asserting that the target array doesn't have all of the same members as
+   * the given array `set` but may or may not have some of them. It's often best
+   * to identify the exact output that's expected, and then write an assertion
+   * that only accepts that exact output.
    *
-   *     expect([{ id: 1 }]).to.deep.include.members([{ id: 1 }]);
+   *     expect([1, 2]).to.not.include(3).and.not.include(4); // Recommended
+   *     expect([1, 2]).to.not.have.members([3, 4]); // Not recommended
+   *
+   * `.members` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`.
+   *
+   *     expect([1, 2]).to.have.members([1, 2, 3], 'nooo why fail??');
+   *     expect([1, 2], 'nooo why fail??').to.have.members([1, 2, 3]);
    *
    * @name members
    * @param {Array} set
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   Assertion.addMethod('members', function (subset, msg) {
     if (msg) flag(this, 'message', msg);
-    var obj = flag(this, 'object');
+    var obj = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
 
-    new Assertion(obj).to.be.an('array');
-    new Assertion(subset).to.be.an('array');
+    new Assertion(obj, flagMsg, ssfi, true).to.be.an('array');
+    new Assertion(subset, flagMsg, ssfi, true).to.be.an('array');
 
-    var cmp = flag(this, 'deep') ? _.eql : undefined;
+    var contains = flag(this, 'contains');
+    var ordered = flag(this, 'ordered');
 
-    if (flag(this, 'contains')) {
-      return this.assert(
-          isSubsetOf(subset, obj, cmp)
-        , 'expected #{this} to be a superset of #{act}'
-        , 'expected #{this} to not be a superset of #{act}'
-        , obj
-        , subset
-      );
+    var subject, failMsg, failNegateMsg;
+
+    if (contains) {
+      subject = ordered ? 'an ordered superset' : 'a superset';
+      failMsg = 'expected #{this} to be ' + subject + ' of #{exp}';
+      failNegateMsg = 'expected #{this} to not be ' + subject + ' of #{exp}';
+    } else {
+      subject = ordered ? 'ordered members' : 'members';
+      failMsg = 'expected #{this} to have the same ' + subject + ' as #{exp}';
+      failNegateMsg = 'expected #{this} to not have the same ' + subject + ' as #{exp}';
     }
 
+    var cmp = flag(this, 'deep') ? _.eql : undefined;
+
     this.assert(
-        isSubsetOf(obj, subset, cmp) && isSubsetOf(subset, obj, cmp)
-        , 'expected #{this} to have the same members as #{act}'
-        , 'expected #{this} to not have the same members as #{act}'
-        , obj
-        , subset
+        isSubsetOf(subset, obj, cmp, contains, ordered)
+      , failMsg
+      , failNegateMsg
+      , subset
+      , obj
+      , true
     );
   });
 
   /**
-   * ### .oneOf(list)
+   * ### .oneOf(list[, msg])
+   *
+   * Asserts that the target is a member of the given array `list`. However,
+   * it's often best to assert that the target is equal to its expected value.
+   *
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.be.oneOf([1, 2, 3]); // Not recommended
+   *
+   * Comparisons are performed using strict (`===`) equality.
    *
-   * Assert that a value appears somewhere in the top level of array `list`.
+   * Add `.not` earlier in the chain to negate `.oneOf`.
    *
-   *     expect('a').to.be.oneOf(['a', 'b', 'c']);
-   *     expect(9).to.not.be.oneOf(['z']);
-   *     expect([3]).to.not.be.oneOf([1, 2, [3]]);
+   *     expect(1).to.equal(1); // Recommended
+   *     expect(1).to.not.be.oneOf([2, 3, 4]); // Not recommended
    *
-   *     var three = [3];
-   *     // for object-types, contents are not compared
-   *     expect(three).to.not.be.oneOf([1, 2, [3]]);
-   *     // comparing references works
-   *     expect(three).to.be.oneOf([1, 2, three]);
+   * `.oneOf` accepts an optional `msg` argument which is a custom error message
+   * to show when the assertion fails. The message can also be given as the
+   * second argument to `expect`.
+   *
+   *     expect(1).to.be.oneOf([2, 3, 4], 'nooo why fail??');
+   *     expect(1, 'nooo why fail??').to.be.oneOf([2, 3, 4]);
    *
    * @name oneOf
    * @param {Array<*>} list
-   * @param {String} message _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
   function oneOf (list, msg) {
     if (msg) flag(this, 'message', msg);
-    var expected = flag(this, 'object');
-    new Assertion(list).to.be.an('array');
+    var expected = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
+    new Assertion(list, flagMsg, ssfi, true).to.be.an('array');
 
     this.assert(
         list.indexOf(expected) > -1
@@ -1904,159 +3510,505 @@ module.exports = function (chai, _) {
 
   Assertion.addMethod('oneOf', oneOf);
 
-
   /**
-   * ### .change(function)
+   * ### .change(subject[, prop[, msg]])
    *
-   * Asserts that a function changes an object property
+   * When one argument is provided, `.change` asserts that the given function
+   * `subject` returns a different value when it's invoked before the target
+   * function compared to when it's invoked afterward. However, it's often best
+   * to assert that `subject` is equal to its expected value.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val += 3 };
-   *     var noChangeFn = function() { return 'foo' + 'bar'; }
-   *     expect(fn).to.change(obj, 'val');
-   *     expect(noChangeFn).to.not.change(obj, 'val')
+   *     var dots = ''
+   *       , addDot = function () { dots += '.'; }
+   *       , getDots = function () { return dots; };
+   *
+   *     // Recommended
+   *     expect(getDots()).to.equal('');
+   *     addDot();
+   *     expect(getDots()).to.equal('.');
+   *
+   *     // Not recommended
+   *     expect(addDot).to.change(getDots);
+   *
+   * When two arguments are provided, `.change` asserts that the value of the
+   * given object `subject`'s `prop` property is different before invoking the
+   * target function compared to afterward.
+   *
+   *     var myObj = {dots: ''}
+   *       , addDot = function () { myObj.dots += '.'; };
+   *
+   *     // Recommended
+   *     expect(myObj).to.have.property('dots', '');
+   *     addDot();
+   *     expect(myObj).to.have.property('dots', '.');
+   *
+   *     // Not recommended
+   *     expect(addDot).to.change(myObj, 'dots');
+   *
+   * Strict (`===`) equality is used to compare before and after values.
+   *
+   * Add `.not` earlier in the chain to negate `.change`.
+   *
+   *     var dots = ''
+   *       , noop = function () {}
+   *       , getDots = function () { return dots; };
+   *
+   *     expect(noop).to.not.change(getDots);
+   *
+   *     var myObj = {dots: ''}
+   *       , noop = function () {};
+   *
+   *     expect(noop).to.not.change(myObj, 'dots');
+   *
+   * `.change` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`. When not providing two arguments, always
+   * use the second form.
+   *
+   *     var myObj = {dots: ''}
+   *       , addDot = function () { myObj.dots += '.'; };
+   *
+   *     expect(addDot).to.not.change(myObj, 'dots', 'nooo why fail??');
+   *
+   *     var dots = ''
+   *       , addDot = function () { dots += '.'; }
+   *       , getDots = function () { return dots; };
+   *
+   *     expect(addDot, 'nooo why fail??').to.not.change(getDots);
+   *
+   * `.change` also causes all `.by` assertions that follow in the chain to
+   * assert how much a numeric subject was increased or decreased by. However,
+   * it's dangerous to use `.change.by`. The problem is that it creates
+   * uncertain expectations by asserting that the subject either increases by
+   * the given delta, or that it decreases by the given delta. It's often best
+   * to identify the exact output that's expected, and then write an assertion
+   * that only accepts that exact output.
+   *
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; }
+   *       , subtractTwo = function () { myObj.val -= 2; };
+   *
+   *     expect(addTwo).to.increase(myObj, 'val').by(2); // Recommended
+   *     expect(addTwo).to.change(myObj, 'val').by(2); // Not recommended
+   *
+   *     expect(subtractTwo).to.decrease(myObj, 'val').by(2); // Recommended
+   *     expect(subtractTwo).to.change(myObj, 'val').by(2); // Not recommended
+   *
+   * The alias `.changes` can be used interchangeably with `.change`.
    *
    * @name change
    * @alias changes
-   * @alias Change
-   * @param {String} object
-   * @param {String} property name
-   * @param {String} message _optional_
+   * @param {String} subject
+   * @param {String} prop name _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
-  function assertChanges (object, prop, msg) {
+  function assertChanges (subject, prop, msg) {
     if (msg) flag(this, 'message', msg);
-    var fn = flag(this, 'object');
-    new Assertion(object, msg).to.have.property(prop);
-    new Assertion(fn).is.a('function');
+    var fn = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
+    new Assertion(fn, flagMsg, ssfi, true).is.a('function');
+
+    var initial;
+    if (!prop) {
+      new Assertion(subject, flagMsg, ssfi, true).is.a('function');
+      initial = subject();
+    } else {
+      new Assertion(subject, flagMsg, ssfi, true).to.have.property(prop);
+      initial = subject[prop];
+    }
 
-    var initial = object[prop];
     fn();
 
+    var final = prop === undefined || prop === null ? subject() : subject[prop];
+    var msgObj = prop === undefined || prop === null ? initial : '.' + prop;
+
+    // This gets flagged because of the .by(delta) assertion
+    flag(this, 'deltaMsgObj', msgObj);
+    flag(this, 'initialDeltaValue', initial);
+    flag(this, 'finalDeltaValue', final);
+    flag(this, 'deltaBehavior', 'change');
+    flag(this, 'realDelta', final !== initial);
+
     this.assert(
-      initial !== object[prop]
-      , 'expected .' + prop + ' to change'
-      , 'expected .' + prop + ' to not change'
+      initial !== final
+      , 'expected ' + msgObj + ' to change'
+      , 'expected ' + msgObj + ' to not change'
     );
   }
 
-  Assertion.addChainableMethod('change', assertChanges);
-  Assertion.addChainableMethod('changes', assertChanges);
+  Assertion.addMethod('change', assertChanges);
+  Assertion.addMethod('changes', assertChanges);
 
   /**
-   * ### .increase(function)
+   * ### .increase(subject[, prop[, msg]])
    *
-   * Asserts that a function increases an object property
+   * When one argument is provided, `.increase` asserts that the given function
+   * `subject` returns a greater number when it's invoked after invoking the
+   * target function compared to when it's invoked beforehand. `.increase` also
+   * causes all `.by` assertions that follow in the chain to assert how much
+   * greater of a number is returned. It's often best to assert that the return
+   * value increased by the expected amount, rather than asserting it increased
+   * by any amount.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 15 };
-   *     expect(fn).to.increase(obj, 'val');
+   *     var val = 1
+   *       , addTwo = function () { val += 2; }
+   *       , getVal = function () { return val; };
+   *
+   *     expect(addTwo).to.increase(getVal).by(2); // Recommended
+   *     expect(addTwo).to.increase(getVal); // Not recommended
+   *
+   * When two arguments are provided, `.increase` asserts that the value of the
+   * given object `subject`'s `prop` property is greater after invoking the
+   * target function compared to beforehand.
+   *
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; };
+   *
+   *     expect(addTwo).to.increase(myObj, 'val').by(2); // Recommended
+   *     expect(addTwo).to.increase(myObj, 'val'); // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.increase`. However, it's
+   * dangerous to do so. The problem is that it creates uncertain expectations
+   * by asserting that the subject either decreases, or that it stays the same.
+   * It's often best to identify the exact output that's expected, and then
+   * write an assertion that only accepts that exact output.
+   *
+   * When the subject is expected to decrease, it's often best to assert that it
+   * decreased by the expected amount.
+   *
+   *     var myObj = {val: 1}
+   *       , subtractTwo = function () { myObj.val -= 2; };
+   *
+   *     expect(subtractTwo).to.decrease(myObj, 'val').by(2); // Recommended
+   *     expect(subtractTwo).to.not.increase(myObj, 'val'); // Not recommended
+   *
+   * When the subject is expected to stay the same, it's often best to assert
+   * exactly that.
+   *
+   *     var myObj = {val: 1}
+   *       , noop = function () {};
+   *
+   *     expect(noop).to.not.change(myObj, 'val'); // Recommended
+   *     expect(noop).to.not.increase(myObj, 'val'); // Not recommended
+   *
+   * `.increase` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`. When not providing two arguments, always
+   * use the second form.
+   *
+   *     var myObj = {val: 1}
+   *       , noop = function () {};
+   *
+   *     expect(noop).to.increase(myObj, 'val', 'nooo why fail??');
+   *
+   *     var val = 1
+   *       , noop = function () {}
+   *       , getVal = function () { return val; };
+   *
+   *     expect(noop, 'nooo why fail??').to.increase(getVal);
+   *
+   * The alias `.increases` can be used interchangeably with `.increase`.
    *
    * @name increase
    * @alias increases
-   * @alias Increase
-   * @param {String} object
-   * @param {String} property name
-   * @param {String} message _optional_
+   * @param {String|Function} subject
+   * @param {String} prop name _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
-  function assertIncreases (object, prop, msg) {
+  function assertIncreases (subject, prop, msg) {
     if (msg) flag(this, 'message', msg);
-    var fn = flag(this, 'object');
-    new Assertion(object, msg).to.have.property(prop);
-    new Assertion(fn).is.a('function');
+    var fn = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
+    new Assertion(fn, flagMsg, ssfi, true).is.a('function');
+
+    var initial;
+    if (!prop) {
+      new Assertion(subject, flagMsg, ssfi, true).is.a('function');
+      initial = subject();
+    } else {
+      new Assertion(subject, flagMsg, ssfi, true).to.have.property(prop);
+      initial = subject[prop];
+    }
+
+    // Make sure that the target is a number
+    new Assertion(initial, flagMsg, ssfi, true).is.a('number');
 
-    var initial = object[prop];
     fn();
 
+    var final = prop === undefined || prop === null ? subject() : subject[prop];
+    var msgObj = prop === undefined || prop === null ? initial : '.' + prop;
+
+    flag(this, 'deltaMsgObj', msgObj);
+    flag(this, 'initialDeltaValue', initial);
+    flag(this, 'finalDeltaValue', final);
+    flag(this, 'deltaBehavior', 'increase');
+    flag(this, 'realDelta', final - initial);
+
     this.assert(
-      object[prop] - initial > 0
-      , 'expected .' + prop + ' to increase'
-      , 'expected .' + prop + ' to not increase'
+      final - initial > 0
+      , 'expected ' + msgObj + ' to increase'
+      , 'expected ' + msgObj + ' to not increase'
     );
   }
 
-  Assertion.addChainableMethod('increase', assertIncreases);
-  Assertion.addChainableMethod('increases', assertIncreases);
+  Assertion.addMethod('increase', assertIncreases);
+  Assertion.addMethod('increases', assertIncreases);
 
   /**
-   * ### .decrease(function)
+   * ### .decrease(subject[, prop[, msg]])
    *
-   * Asserts that a function decreases an object property
+   * When one argument is provided, `.decrease` asserts that the given function
+   * `subject` returns a lesser number when it's invoked after invoking the
+   * target function compared to when it's invoked beforehand. `.decrease` also
+   * causes all `.by` assertions that follow in the chain to assert how much
+   * lesser of a number is returned. It's often best to assert that the return
+   * value decreased by the expected amount, rather than asserting it decreased
+   * by any amount.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 5 };
-   *     expect(fn).to.decrease(obj, 'val');
+   *     var val = 1
+   *       , subtractTwo = function () { val -= 2; }
+   *       , getVal = function () { return val; };
+   *
+   *     expect(subtractTwo).to.decrease(getVal).by(2); // Recommended
+   *     expect(subtractTwo).to.decrease(getVal); // Not recommended
+   *
+   * When two arguments are provided, `.decrease` asserts that the value of the
+   * given object `subject`'s `prop` property is lesser after invoking the
+   * target function compared to beforehand.
+   *
+   *     var myObj = {val: 1}
+   *       , subtractTwo = function () { myObj.val -= 2; };
+   *
+   *     expect(subtractTwo).to.decrease(myObj, 'val').by(2); // Recommended
+   *     expect(subtractTwo).to.decrease(myObj, 'val'); // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.decrease`. However, it's
+   * dangerous to do so. The problem is that it creates uncertain expectations
+   * by asserting that the subject either increases, or that it stays the same.
+   * It's often best to identify the exact output that's expected, and then
+   * write an assertion that only accepts that exact output.
+   *
+   * When the subject is expected to increase, it's often best to assert that it
+   * increased by the expected amount.
+   *
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; };
+   *
+   *     expect(addTwo).to.increase(myObj, 'val').by(2); // Recommended
+   *     expect(addTwo).to.not.decrease(myObj, 'val'); // Not recommended
+   *
+   * When the subject is expected to stay the same, it's often best to assert
+   * exactly that.
+   *
+   *     var myObj = {val: 1}
+   *       , noop = function () {};
+   *
+   *     expect(noop).to.not.change(myObj, 'val'); // Recommended
+   *     expect(noop).to.not.decrease(myObj, 'val'); // Not recommended
+   *
+   * `.decrease` accepts an optional `msg` argument which is a custom error
+   * message to show when the assertion fails. The message can also be given as
+   * the second argument to `expect`. When not providing two arguments, always
+   * use the second form.
+   *
+   *     var myObj = {val: 1}
+   *       , noop = function () {};
+   *
+   *     expect(noop).to.decrease(myObj, 'val', 'nooo why fail??');
+   *
+   *     var val = 1
+   *       , noop = function () {}
+   *       , getVal = function () { return val; };
+   *
+   *     expect(noop, 'nooo why fail??').to.decrease(getVal);
+   *
+   * The alias `.decreases` can be used interchangeably with `.decrease`.
    *
    * @name decrease
    * @alias decreases
-   * @alias Decrease
-   * @param {String} object
-   * @param {String} property name
-   * @param {String} message _optional_
+   * @param {String|Function} subject
+   * @param {String} prop name _optional_
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
-  function assertDecreases (object, prop, msg) {
+  function assertDecreases (subject, prop, msg) {
     if (msg) flag(this, 'message', msg);
-    var fn = flag(this, 'object');
-    new Assertion(object, msg).to.have.property(prop);
-    new Assertion(fn).is.a('function');
+    var fn = flag(this, 'object')
+      , flagMsg = flag(this, 'message')
+      , ssfi = flag(this, 'ssfi');
+    new Assertion(fn, flagMsg, ssfi, true).is.a('function');
+
+    var initial;
+    if (!prop) {
+      new Assertion(subject, flagMsg, ssfi, true).is.a('function');
+      initial = subject();
+    } else {
+      new Assertion(subject, flagMsg, ssfi, true).to.have.property(prop);
+      initial = subject[prop];
+    }
+
+    // Make sure that the target is a number
+    new Assertion(initial, flagMsg, ssfi, true).is.a('number');
 
-    var initial = object[prop];
     fn();
 
+    var final = prop === undefined || prop === null ? subject() : subject[prop];
+    var msgObj = prop === undefined || prop === null ? initial : '.' + prop;
+
+    flag(this, 'deltaMsgObj', msgObj);
+    flag(this, 'initialDeltaValue', initial);
+    flag(this, 'finalDeltaValue', final);
+    flag(this, 'deltaBehavior', 'decrease');
+    flag(this, 'realDelta', initial - final);
+
     this.assert(
-      object[prop] - initial < 0
-      , 'expected .' + prop + ' to decrease'
-      , 'expected .' + prop + ' to not decrease'
+      final - initial < 0
+      , 'expected ' + msgObj + ' to decrease'
+      , 'expected ' + msgObj + ' to not decrease'
     );
   }
 
-  Assertion.addChainableMethod('decrease', assertDecreases);
-  Assertion.addChainableMethod('decreases', assertDecreases);
+  Assertion.addMethod('decrease', assertDecreases);
+  Assertion.addMethod('decreases', assertDecreases);
 
   /**
-   * ### .extensible
+   * ### .by(delta[, msg])
    *
-   * Asserts that the target is extensible (can have new properties added to
-   * it).
+   * When following an `.increase` assertion in the chain, `.by` asserts that
+   * the subject of the `.increase` assertion increased by the given `delta`.
    *
-   *     var nonExtensibleObject = Object.preventExtensions({});
-   *     var sealedObject = Object.seal({});
-   *     var frozenObject = Object.freeze({});
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; };
    *
-   *     expect({}).to.be.extensible;
-   *     expect(nonExtensibleObject).to.not.be.extensible;
-   *     expect(sealedObject).to.not.be.extensible;
-   *     expect(frozenObject).to.not.be.extensible;
+   *     expect(addTwo).to.increase(myObj, 'val').by(2);
    *
-   * @name extensible
+   * When following a `.decrease` assertion in the chain, `.by` asserts that the
+   * subject of the `.decrease` assertion decreased by the given `delta`.
+   *
+   *     var myObj = {val: 1}
+   *       , subtractTwo = function () { myObj.val -= 2; };
+   *
+   *     expect(subtractTwo).to.decrease(myObj, 'val').by(2);
+   *
+   * When following a `.change` assertion in the chain, `.by` asserts that the
+   * subject of the `.change` assertion either increased or decreased by the
+   * given `delta`. However, it's dangerous to use `.change.by`. The problem is
+   * that it creates uncertain expectations. It's often best to identify the
+   * exact output that's expected, and then write an assertion that only accepts
+   * that exact output.
+   *
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; }
+   *       , subtractTwo = function () { myObj.val -= 2; };
+   *
+   *     expect(addTwo).to.increase(myObj, 'val').by(2); // Recommended
+   *     expect(addTwo).to.change(myObj, 'val').by(2); // Not recommended
+   *
+   *     expect(subtractTwo).to.decrease(myObj, 'val').by(2); // Recommended
+   *     expect(subtractTwo).to.change(myObj, 'val').by(2); // Not recommended
+   *
+   * Add `.not` earlier in the chain to negate `.by`. However, it's often best
+   * to assert that the subject changed by its expected delta, rather than
+   * asserting that it didn't change by one of countless unexpected deltas.
+   *
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; };
+   *
+   *     // Recommended
+   *     expect(addTwo).to.increase(myObj, 'val').by(2);
+   *
+   *     // Not recommended
+   *     expect(addTwo).to.increase(myObj, 'val').but.not.by(3);
+   *
+   * `.by` accepts an optional `msg` argument which is a custom error message to
+   * show when the assertion fails. The message can also be given as the second
+   * argument to `expect`.
+   *
+   *     var myObj = {val: 1}
+   *       , addTwo = function () { myObj.val += 2; };
+   *
+   *     expect(addTwo).to.increase(myObj, 'val').by(3, 'nooo why fail??');
+   *     expect(addTwo, 'nooo why fail??').to.increase(myObj, 'val').by(3);
+   *
+   * @name by
+   * @param {Number} delta
+   * @param {String} msg _optional_
    * @namespace BDD
    * @api public
    */
 
-  Assertion.addProperty('extensible', function() {
-    var obj = flag(this, 'object');
+  function assertDelta(delta, msg) {
+    if (msg) flag(this, 'message', msg);
 
-    // In ES5, if the argument to this method is not an object (a primitive), then it will cause a TypeError.
-    // In ES6, a non-object argument will be treated as if it was a non-extensible ordinary object, simply return false.
-    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible
-    // The following provides ES6 behavior when a TypeError is thrown under ES5.
+    var msgObj = flag(this, 'deltaMsgObj');
+    var initial = flag(this, 'initialDeltaValue');
+    var final = flag(this, 'finalDeltaValue');
+    var behavior = flag(this, 'deltaBehavior');
+    var realDelta = flag(this, 'realDelta');
 
-    var isExtensible;
+    var expression;
+    if (behavior === 'change') {
+      expression = Math.abs(final - initial) === Math.abs(delta);
+    } else {
+      expression = realDelta === Math.abs(delta);
+    }
 
-    try {
-      isExtensible = Object.isExtensible(obj);
-    } catch (err) {
-      if (err instanceof TypeError) isExtensible = false;
-      else throw err;
-    }
+    this.assert(
+      expression
+      , 'expected ' + msgObj + ' to ' + behavior + ' by ' + delta
+      , 'expected ' + msgObj + ' to not ' + behavior + ' by ' + delta
+    );
+  }
+
+  Assertion.addMethod('by', assertDelta);
+
+  /**
+   * ### .extensible
+   *
+   * Asserts that the target is extensible, which means that new properties can
+   * be added to it. Primitives are never extensible.
+   *
+   *     expect({a: 1}).to.be.extensible;
+   *
+   * Add `.not` earlier in the chain to negate `.extensible`.
+   *
+   *     var nonExtensibleObject = Object.preventExtensions({})
+   *       , sealedObject = Object.seal({})
+   *       , frozenObject = Object.freeze({});
+   *
+   *     expect(nonExtensibleObject).to.not.be.extensible;
+   *     expect(sealedObject).to.not.be.extensible;
+   *     expect(frozenObject).to.not.be.extensible;
+   *     expect(1).to.not.be.extensible;
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect(1, 'nooo why fail??').to.be.extensible;
+   *
+   * @name extensible
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('extensible', function() {
+    var obj = flag(this, 'object');
+
+    // In ES5, if the argument to this method is a primitive, then it will cause a TypeError.
+    // In ES6, a non-object argument will be treated as if it was a non-extensible ordinary object, simply return false.
+    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible
+    // The following provides ES6 behavior for ES5 environments.
+
+    var isExtensible = obj === Object(obj) && Object.isExtensible(obj);
 
     this.assert(
       isExtensible
@@ -2068,15 +4020,25 @@ module.exports = function (chai, _) {
   /**
    * ### .sealed
    *
-   * Asserts that the target is sealed (cannot have new properties added to it
-   * and its existing properties cannot be removed).
+   * Asserts that the target is sealed, which means that new properties can't be
+   * added to it, and its existing properties can't be reconfigured or deleted.
+   * However, it's possible that its existing properties can still be reassigned
+   * to different values. Primitives are always sealed.
    *
    *     var sealedObject = Object.seal({});
    *     var frozenObject = Object.freeze({});
    *
    *     expect(sealedObject).to.be.sealed;
    *     expect(frozenObject).to.be.sealed;
-   *     expect({}).to.not.be.sealed;
+   *     expect(1).to.be.sealed;
+   *
+   * Add `.not` earlier in the chain to negate `.sealed`.
+   *
+   *     expect({a: 1}).to.not.be.sealed;
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect({a: 1}, 'nooo why fail??').to.be.sealed;
    *
    * @name sealed
    * @namespace BDD
@@ -2086,19 +4048,12 @@ module.exports = function (chai, _) {
   Assertion.addProperty('sealed', function() {
     var obj = flag(this, 'object');
 
-    // In ES5, if the argument to this method is not an object (a primitive), then it will cause a TypeError.
+    // In ES5, if the argument to this method is a primitive, then it will cause a TypeError.
     // In ES6, a non-object argument will be treated as if it was a sealed ordinary object, simply return true.
     // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isSealed
-    // The following provides ES6 behavior when a TypeError is thrown under ES5.
+    // The following provides ES6 behavior for ES5 environments.
 
-    var isSealed;
-
-    try {
-      isSealed = Object.isSealed(obj);
-    } catch (err) {
-      if (err instanceof TypeError) isSealed = true;
-      else throw err;
-    }
+    var isSealed = obj === Object(obj) ? Object.isSealed(obj) : true;
 
     this.assert(
       isSealed
@@ -2110,13 +4065,22 @@ module.exports = function (chai, _) {
   /**
    * ### .frozen
    *
-   * Asserts that the target is frozen (cannot have new properties added to it
-   * and its existing properties cannot be modified).
+   * Asserts that the target is frozen, which means that new properties can't be
+   * added to it, and its existing properties can't be reassigned to different
+   * values, reconfigured, or deleted. Primitives are always frozen.
    *
    *     var frozenObject = Object.freeze({});
    *
    *     expect(frozenObject).to.be.frozen;
-   *     expect({}).to.not.be.frozen;
+   *     expect(1).to.be.frozen;
+   *
+   * Add `.not` earlier in the chain to negate `.frozen`.
+   *
+   *     expect({a: 1}).to.not.be.frozen;
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect({a: 1}, 'nooo why fail??').to.be.frozen;
    *
    * @name frozen
    * @namespace BDD
@@ -2126,19 +4090,12 @@ module.exports = function (chai, _) {
   Assertion.addProperty('frozen', function() {
     var obj = flag(this, 'object');
 
-    // In ES5, if the argument to this method is not an object (a primitive), then it will cause a TypeError.
+    // In ES5, if the argument to this method is a primitive, then it will cause a TypeError.
     // In ES6, a non-object argument will be treated as if it was a frozen ordinary object, simply return true.
     // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen
-    // The following provides ES6 behavior when a TypeError is thrown under ES5.
-
-    var isFrozen;
+    // The following provides ES6 behavior for ES5 environments.
 
-    try {
-      isFrozen = Object.isFrozen(obj);
-    } catch (err) {
-      if (err instanceof TypeError) isFrozen = true;
-      else throw err;
-    }
+    var isFrozen = obj === Object(obj) ? Object.isFrozen(obj) : true;
 
     this.assert(
       isFrozen
@@ -2146,6 +4103,65 @@ module.exports = function (chai, _) {
       , 'expected #{this} to not be frozen'
     );
   });
+
+  /**
+   * ### .finite
+   *
+   * Asserts that the target is a number, and isn't `NaN` or positive/negative
+   * `Infinity`.
+   *
+   *     expect(1).to.be.finite;
+   *
+   * Add `.not` earlier in the chain to negate `.finite`. However, it's
+   * dangerous to do so. The problem is that it creates uncertain expectations
+   * by asserting that the subject either isn't a number, or that it's `NaN`, or
+   * that it's positive `Infinity`, or that it's negative `Infinity`. It's often
+   * best to identify the exact output that's expected, and then write an
+   * assertion that only accepts that exact output.
+   *
+   * When the target isn't expected to be a number, it's often best to assert
+   * that it's the expected type, rather than asserting that it isn't one of
+   * many unexpected types.
+   *
+   *     expect('foo').to.be.a('string'); // Recommended
+   *     expect('foo').to.not.be.finite; // Not recommended
+   *
+   * When the target is expected to be `NaN`, it's often best to assert exactly
+   * that.
+   *
+   *     expect(NaN).to.be.NaN; // Recommended
+   *     expect(NaN).to.not.be.finite; // Not recommended
+   *
+   * When the target is expected to be positive infinity, it's often best to
+   * assert exactly that.
+   *
+   *     expect(Infinity).to.equal(Infinity); // Recommended
+   *     expect(Infinity).to.not.be.finite; // Not recommended
+   *
+   * When the target is expected to be negative infinity, it's often best to
+   * assert exactly that.
+   *
+   *     expect(-Infinity).to.equal(-Infinity); // Recommended
+   *     expect(-Infinity).to.not.be.finite; // Not recommended
+   *
+   * A custom error message can be given as the second argument to `expect`.
+   *
+   *     expect('foo', 'nooo why fail??').to.be.finite;
+   *
+   * @name finite
+   * @namespace BDD
+   * @api public
+   */
+
+  Assertion.addProperty('finite', function(msg) {
+    var obj = flag(this, 'object');
+
+    this.assert(
+        typeof obj === 'number' && isFinite(obj)
+      , 'expected #{this} to be a finite number'
+      , 'expected #{this} to not be a finite number'
+    );
+  });
 };
 
 },{}],6:[function(require,module,exports){
@@ -2155,9 +4171,7 @@ module.exports = function (chai, _) {
  * MIT Licensed
  */
 
-
 module.exports = function (chai, util) {
-
   /*!
    * Chai dependencies.
    */
@@ -2185,7 +4199,7 @@ module.exports = function (chai, util) {
    */
 
   var assert = chai.assert = function (express, errmsg) {
-    var test = new Assertion(null, null, chai.assert);
+    var test = new Assertion(null, null, chai.assert, true);
     test.assert(
         express
       , errmsg
@@ -2194,10 +4208,18 @@ module.exports = function (chai, util) {
   };
 
   /**
+   * ### .fail([message])
    * ### .fail(actual, expected, [message], [operator])
    *
    * Throw a failure. Node.js `assert` module-compatible.
    *
+   *     assert.fail();
+   *     assert.fail("custom error message");
+   *     assert.fail(1, 2);
+   *     assert.fail(1, 2, "custom error message");
+   *     assert.fail(1, 2, "custom error message", ">");
+   *     assert.fail(1, 2, undefined, ">");
+   *
    * @name fail
    * @param {Mixed} actual
    * @param {Mixed} expected
@@ -2208,6 +4230,13 @@ module.exports = function (chai, util) {
    */
 
   assert.fail = function (actual, expected, message, operator) {
+    if (arguments.length < 2) {
+        // Comply with Node's fail([message]) interface
+
+        message = actual;
+        actual = undefined;
+    }
+
     message = message || 'assert.fail()';
     throw new chai.AssertionError(message, {
         actual: actual
@@ -2233,7 +4262,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isOk = function (val, msg) {
-    new Assertion(val, msg).is.ok;
+    new Assertion(val, msg, assert.isOk, true).is.ok;
   };
 
   /**
@@ -2253,7 +4282,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotOk = function (val, msg) {
-    new Assertion(val, msg).is.not.ok;
+    new Assertion(val, msg, assert.isNotOk, true).is.not.ok;
   };
 
   /**
@@ -2272,7 +4301,7 @@ module.exports = function (chai, util) {
    */
 
   assert.equal = function (act, exp, msg) {
-    var test = new Assertion(act, msg, assert.equal);
+    var test = new Assertion(act, msg, assert.equal, true);
 
     test.assert(
         exp == flag(test, 'object')
@@ -2280,6 +4309,7 @@ module.exports = function (chai, util) {
       , 'expected #{this} to not equal #{act}'
       , exp
       , act
+      , true
     );
   };
 
@@ -2299,7 +4329,7 @@ module.exports = function (chai, util) {
    */
 
   assert.notEqual = function (act, exp, msg) {
-    var test = new Assertion(act, msg, assert.notEqual);
+    var test = new Assertion(act, msg, assert.notEqual, true);
 
     test.assert(
         exp != flag(test, 'object')
@@ -2307,6 +4337,7 @@ module.exports = function (chai, util) {
       , 'expected #{this} to equal #{act}'
       , exp
       , act
+      , true
     );
   };
 
@@ -2326,7 +4357,7 @@ module.exports = function (chai, util) {
    */
 
   assert.strictEqual = function (act, exp, msg) {
-    new Assertion(act, msg).to.equal(exp);
+    new Assertion(act, msg, assert.strictEqual, true).to.equal(exp);
   };
 
   /**
@@ -2345,7 +4376,7 @@ module.exports = function (chai, util) {
    */
 
   assert.notStrictEqual = function (act, exp, msg) {
-    new Assertion(act, msg).to.not.equal(exp);
+    new Assertion(act, msg, assert.notStrictEqual, true).to.not.equal(exp);
   };
 
   /**
@@ -2359,12 +4390,13 @@ module.exports = function (chai, util) {
    * @param {Mixed} actual
    * @param {Mixed} expected
    * @param {String} message
+   * @alias deepStrictEqual
    * @namespace Assert
    * @api public
    */
 
-  assert.deepEqual = function (act, exp, msg) {
-    new Assertion(act, msg).to.eql(exp);
+  assert.deepEqual = assert.deepStrictEqual = function (act, exp, msg) {
+    new Assertion(act, msg, assert.deepEqual, true).to.eql(exp);
   };
 
   /**
@@ -2383,13 +4415,13 @@ module.exports = function (chai, util) {
    */
 
   assert.notDeepEqual = function (act, exp, msg) {
-    new Assertion(act, msg).to.not.eql(exp);
+    new Assertion(act, msg, assert.notDeepEqual, true).to.not.eql(exp);
   };
 
    /**
    * ### .isAbove(valueToCheck, valueToBeAbove, [message])
    *
-   * Asserts `valueToCheck` is strictly greater than (>) `valueToBeAbove`
+   * Asserts `valueToCheck` is strictly greater than (>) `valueToBeAbove`.
    *
    *     assert.isAbove(5, 2, '5 is strictly greater than 2');
    *
@@ -2402,13 +4434,13 @@ module.exports = function (chai, util) {
    */
 
   assert.isAbove = function (val, abv, msg) {
-    new Assertion(val, msg).to.be.above(abv);
+    new Assertion(val, msg, assert.isAbove, true).to.be.above(abv);
   };
 
    /**
    * ### .isAtLeast(valueToCheck, valueToBeAtLeast, [message])
    *
-   * Asserts `valueToCheck` is greater than or equal to (>=) `valueToBeAtLeast`
+   * Asserts `valueToCheck` is greater than or equal to (>=) `valueToBeAtLeast`.
    *
    *     assert.isAtLeast(5, 2, '5 is greater or equal to 2');
    *     assert.isAtLeast(3, 3, '3 is greater or equal to 3');
@@ -2422,13 +4454,13 @@ module.exports = function (chai, util) {
    */
 
   assert.isAtLeast = function (val, atlst, msg) {
-    new Assertion(val, msg).to.be.least(atlst);
+    new Assertion(val, msg, assert.isAtLeast, true).to.be.least(atlst);
   };
 
    /**
    * ### .isBelow(valueToCheck, valueToBeBelow, [message])
    *
-   * Asserts `valueToCheck` is strictly less than (<) `valueToBeBelow`
+   * Asserts `valueToCheck` is strictly less than (<) `valueToBeBelow`.
    *
    *     assert.isBelow(3, 6, '3 is strictly less than 6');
    *
@@ -2441,13 +4473,13 @@ module.exports = function (chai, util) {
    */
 
   assert.isBelow = function (val, blw, msg) {
-    new Assertion(val, msg).to.be.below(blw);
+    new Assertion(val, msg, assert.isBelow, true).to.be.below(blw);
   };
 
    /**
    * ### .isAtMost(valueToCheck, valueToBeAtMost, [message])
    *
-   * Asserts `valueToCheck` is less than or equal to (<=) `valueToBeAtMost`
+   * Asserts `valueToCheck` is less than or equal to (<=) `valueToBeAtMost`.
    *
    *     assert.isAtMost(3, 6, '3 is less than or equal to 6');
    *     assert.isAtMost(4, 4, '4 is less than or equal to 4');
@@ -2461,7 +4493,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isAtMost = function (val, atmst, msg) {
-    new Assertion(val, msg).to.be.most(atmst);
+    new Assertion(val, msg, assert.isAtMost, true).to.be.most(atmst);
   };
 
   /**
@@ -2480,7 +4512,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isTrue = function (val, msg) {
-    new Assertion(val, msg).is['true'];
+    new Assertion(val, msg, assert.isTrue, true).is['true'];
   };
 
   /**
@@ -2499,7 +4531,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotTrue = function (val, msg) {
-    new Assertion(val, msg).to.not.equal(true);
+    new Assertion(val, msg, assert.isNotTrue, true).to.not.equal(true);
   };
 
   /**
@@ -2518,7 +4550,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isFalse = function (val, msg) {
-    new Assertion(val, msg).is['false'];
+    new Assertion(val, msg, assert.isFalse, true).is['false'];
   };
 
   /**
@@ -2537,7 +4569,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotFalse = function (val, msg) {
-    new Assertion(val, msg).to.not.equal(false);
+    new Assertion(val, msg, assert.isNotFalse, true).to.not.equal(false);
   };
 
   /**
@@ -2555,7 +4587,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNull = function (val, msg) {
-    new Assertion(val, msg).to.equal(null);
+    new Assertion(val, msg, assert.isNull, true).to.equal(null);
   };
 
   /**
@@ -2574,14 +4606,15 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotNull = function (val, msg) {
-    new Assertion(val, msg).to.not.equal(null);
+    new Assertion(val, msg, assert.isNotNull, true).to.not.equal(null);
   };
 
   /**
    * ### .isNaN
-   * Asserts that value is NaN
    *
-   *    assert.isNaN('foo', 'foo is NaN');
+   * Asserts that value is NaN.
+   *
+   *     assert.isNaN(NaN, 'NaN is NaN');
    *
    * @name isNaN
    * @param {Mixed} value
@@ -2591,14 +4624,15 @@ module.exports = function (chai, util) {
    */
 
   assert.isNaN = function (val, msg) {
-    new Assertion(val, msg).to.be.NaN;
+    new Assertion(val, msg, assert.isNaN, true).to.be.NaN;
   };
 
   /**
    * ### .isNotNaN
-   * Asserts that value is not NaN
    *
-   *    assert.isNotNaN(4, '4 is not NaN');
+   * Asserts that value is not NaN.
+   *
+   *     assert.isNotNaN(4, '4 is not NaN');
    *
    * @name isNotNaN
    * @param {Mixed} value
@@ -2607,7 +4641,49 @@ module.exports = function (chai, util) {
    * @api public
    */
   assert.isNotNaN = function (val, msg) {
-    new Assertion(val, msg).not.to.be.NaN;
+    new Assertion(val, msg, assert.isNotNaN, true).not.to.be.NaN;
+  };
+
+  /**
+   * ### .exists
+   *
+   * Asserts that the target is neither `null` nor `undefined`.
+   *
+   *     var foo = 'hi';
+   *
+   *     assert.exists(foo, 'foo is neither `null` nor `undefined`');
+   *
+   * @name exists
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.exists = function (val, msg) {
+    new Assertion(val, msg, assert.exists, true).to.exist;
+  };
+
+  /**
+   * ### .notExists
+   *
+   * Asserts that the target is either `null` or `undefined`.
+   *
+   *     var bar = null
+   *       , baz;
+   *
+   *     assert.notExists(bar);
+   *     assert.notExists(baz, 'baz is either null or undefined');
+   *
+   * @name notExists
+   * @param {Mixed} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notExists = function (val, msg) {
+    new Assertion(val, msg, assert.notExists, true).to.not.exist;
   };
 
   /**
@@ -2626,7 +4702,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isUndefined = function (val, msg) {
-    new Assertion(val, msg).to.equal(undefined);
+    new Assertion(val, msg, assert.isUndefined, true).to.equal(undefined);
   };
 
   /**
@@ -2645,7 +4721,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isDefined = function (val, msg) {
-    new Assertion(val, msg).to.not.equal(undefined);
+    new Assertion(val, msg, assert.isDefined, true).to.not.equal(undefined);
   };
 
   /**
@@ -2664,7 +4740,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isFunction = function (val, msg) {
-    new Assertion(val, msg).to.be.a('function');
+    new Assertion(val, msg, assert.isFunction, true).to.be.a('function');
   };
 
   /**
@@ -2683,7 +4759,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotFunction = function (val, msg) {
-    new Assertion(val, msg).to.not.be.a('function');
+    new Assertion(val, msg, assert.isNotFunction, true).to.not.be.a('function');
   };
 
   /**
@@ -2703,7 +4779,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isObject = function (val, msg) {
-    new Assertion(val, msg).to.be.a('object');
+    new Assertion(val, msg, assert.isObject, true).to.be.a('object');
   };
 
   /**
@@ -2723,7 +4799,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotObject = function (val, msg) {
-    new Assertion(val, msg).to.not.be.a('object');
+    new Assertion(val, msg, assert.isNotObject, true).to.not.be.a('object');
   };
 
   /**
@@ -2742,7 +4818,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isArray = function (val, msg) {
-    new Assertion(val, msg).to.be.an('array');
+    new Assertion(val, msg, assert.isArray, true).to.be.an('array');
   };
 
   /**
@@ -2761,7 +4837,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotArray = function (val, msg) {
-    new Assertion(val, msg).to.not.be.an('array');
+    new Assertion(val, msg, assert.isNotArray, true).to.not.be.an('array');
   };
 
   /**
@@ -2780,7 +4856,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isString = function (val, msg) {
-    new Assertion(val, msg).to.be.a('string');
+    new Assertion(val, msg, assert.isString, true).to.be.a('string');
   };
 
   /**
@@ -2799,7 +4875,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotString = function (val, msg) {
-    new Assertion(val, msg).to.not.be.a('string');
+    new Assertion(val, msg, assert.isNotString, true).to.not.be.a('string');
   };
 
   /**
@@ -2818,7 +4894,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNumber = function (val, msg) {
-    new Assertion(val, msg).to.be.a('number');
+    new Assertion(val, msg, assert.isNumber, true).to.be.a('number');
   };
 
   /**
@@ -2837,7 +4913,28 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotNumber = function (val, msg) {
-    new Assertion(val, msg).to.not.be.a('number');
+    new Assertion(val, msg, assert.isNotNumber, true).to.not.be.a('number');
+  };
+
+   /**
+   * ### .isFinite(value, [message])
+   *
+   * Asserts that `value` is a finite number. Unlike `.isNumber`, this will fail for `NaN` and `Infinity`.
+   *
+   *     var cups = 2;
+   *     assert.isFinite(cups, 'how many cups');
+   *
+   *     assert.isFinite(NaN); // throws
+   *
+   * @name isFinite
+   * @param {Number} value
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isFinite = function (val, msg) {
+    new Assertion(val, msg, assert.isFinite, true).to.be.finite;
   };
 
   /**
@@ -2859,7 +4956,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isBoolean = function (val, msg) {
-    new Assertion(val, msg).to.be.a('boolean');
+    new Assertion(val, msg, assert.isBoolean, true).to.be.a('boolean');
   };
 
   /**
@@ -2881,7 +4978,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotBoolean = function (val, msg) {
-    new Assertion(val, msg).to.not.be.a('boolean');
+    new Assertion(val, msg, assert.isNotBoolean, true).to.not.be.a('boolean');
   };
 
   /**
@@ -2906,7 +5003,7 @@ module.exports = function (chai, util) {
    */
 
   assert.typeOf = function (val, type, msg) {
-    new Assertion(val, msg).to.be.a(type);
+    new Assertion(val, msg, assert.typeOf, true).to.be.a(type);
   };
 
   /**
@@ -2926,7 +5023,7 @@ module.exports = function (chai, util) {
    */
 
   assert.notTypeOf = function (val, type, msg) {
-    new Assertion(val, msg).to.not.be.a(type);
+    new Assertion(val, msg, assert.notTypeOf, true).to.not.be.a(type);
   };
 
   /**
@@ -2948,7 +5045,7 @@ module.exports = function (chai, util) {
    */
 
   assert.instanceOf = function (val, type, msg) {
-    new Assertion(val, msg).to.be.instanceOf(type);
+    new Assertion(val, msg, assert.instanceOf, true).to.be.instanceOf(type);
   };
 
   /**
@@ -2970,17 +5067,32 @@ module.exports = function (chai, util) {
    */
 
   assert.notInstanceOf = function (val, type, msg) {
-    new Assertion(val, msg).to.not.be.instanceOf(type);
+    new Assertion(val, msg, assert.notInstanceOf, true)
+      .to.not.be.instanceOf(type);
   };
 
   /**
    * ### .include(haystack, needle, [message])
    *
-   * Asserts that `haystack` includes `needle`. Works
-   * for strings and arrays.
+   * Asserts that `haystack` includes `needle`. Can be used to assert the
+   * inclusion of a value in an array, a substring in a string, or a subset of
+   * properties in an object.
+   *
+   *     assert.include([1,2,3], 2, 'array contains value');
+   *     assert.include('foobar', 'foo', 'string contains substring');
+   *     assert.include({ foo: 'bar', hello: 'universe' }, { foo: 'bar' }, 'object contains property');
+   *
+   * Strict equality (===) is used. When asserting the inclusion of a value in
+   * an array, the array is searched for an element that's strictly equal to the
+   * given value. When asserting a subset of properties in an object, the object
+   * is searched for the given property keys, checking that each one is present
+   * and strictly equal to the given property value. For instance:
    *
-   *     assert.include('foobar', 'bar', 'foobar contains string "bar"');
-   *     assert.include([ 1, 2, 3 ], 3, 'array contains value');
+   *     var obj1 = {a: 1}
+   *       , obj2 = {b: 2};
+   *     assert.include([obj1, obj2], obj1);
+   *     assert.include({foo: obj1, bar: obj2}, {foo: obj1});
+   *     assert.include({foo: obj1, bar: obj2}, {foo: obj1, bar: obj2});
    *
    * @name include
    * @param {Array|String} haystack
@@ -2991,17 +5103,32 @@ module.exports = function (chai, util) {
    */
 
   assert.include = function (exp, inc, msg) {
-    new Assertion(exp, msg, assert.include).include(inc);
+    new Assertion(exp, msg, assert.include, true).include(inc);
   };
 
   /**
    * ### .notInclude(haystack, needle, [message])
    *
-   * Asserts that `haystack` does not include `needle`. Works
-   * for strings and arrays.
+   * Asserts that `haystack` does not include `needle`. Can be used to assert
+   * the absence of a value in an array, a substring in a string, or a subset of
+   * properties in an object.
    *
-   *     assert.notInclude('foobar', 'baz', 'string not include substring');
-   *     assert.notInclude([ 1, 2, 3 ], 4, 'array not include contain value');
+   *     assert.notInclude([1,2,3], 4, "array doesn't contain value");
+   *     assert.notInclude('foobar', 'baz', "string doesn't contain substring");
+   *     assert.notInclude({ foo: 'bar', hello: 'universe' }, { foo: 'baz' }, 'object doesn't contain property');
+   *
+   * Strict equality (===) is used. When asserting the absence of a value in an
+   * array, the array is searched to confirm the absence of an element that's
+   * strictly equal to the given value. When asserting a subset of properties in
+   * an object, the object is searched to confirm that at least one of the given
+   * property keys is either not present or not strictly equal to the given
+   * property value. For instance:
+   *
+   *     var obj1 = {a: 1}
+   *       , obj2 = {b: 2};
+   *     assert.notInclude([obj1, obj2], {a: 1});
+   *     assert.notInclude({foo: obj1, bar: obj2}, {foo: {a: 1}});
+   *     assert.notInclude({foo: obj1, bar: obj2}, {foo: obj1, bar: {b: 2}});
    *
    * @name notInclude
    * @param {Array|String} haystack
@@ -3012,727 +5139,2030 @@ module.exports = function (chai, util) {
    */
 
   assert.notInclude = function (exp, inc, msg) {
-    new Assertion(exp, msg, assert.notInclude).not.include(inc);
+    new Assertion(exp, msg, assert.notInclude, true).not.include(inc);
   };
 
   /**
-   * ### .match(value, regexp, [message])
+   * ### .deepInclude(haystack, needle, [message])
    *
-   * Asserts that `value` matches the regular expression `regexp`.
+   * Asserts that `haystack` includes `needle`. Can be used to assert the
+   * inclusion of a value in an array or a subset of properties in an object.
+   * Deep equality is used.
    *
-   *     assert.match('foobar', /^foo/, 'regexp matches');
+   *     var obj1 = {a: 1}
+   *       , obj2 = {b: 2};
+   *     assert.deepInclude([obj1, obj2], {a: 1});
+   *     assert.deepInclude({foo: obj1, bar: obj2}, {foo: {a: 1}});
+   *     assert.deepInclude({foo: obj1, bar: obj2}, {foo: {a: 1}, bar: {b: 2}});
    *
-   * @name match
-   * @param {Mixed} value
-   * @param {RegExp} regexp
+   * @name deepInclude
+   * @param {Array|String} haystack
+   * @param {Mixed} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.match = function (exp, re, msg) {
-    new Assertion(exp, msg).to.match(re);
+  assert.deepInclude = function (exp, inc, msg) {
+    new Assertion(exp, msg, assert.deepInclude, true).deep.include(inc);
   };
 
   /**
-   * ### .notMatch(value, regexp, [message])
+   * ### .notDeepInclude(haystack, needle, [message])
    *
-   * Asserts that `value` does not match the regular expression `regexp`.
+   * Asserts that `haystack` does not include `needle`. Can be used to assert
+   * the absence of a value in an array or a subset of properties in an object.
+   * Deep equality is used.
    *
-   *     assert.notMatch('foobar', /^foo/, 'regexp does not match');
+   *     var obj1 = {a: 1}
+   *       , obj2 = {b: 2};
+   *     assert.notDeepInclude([obj1, obj2], {a: 9});
+   *     assert.notDeepInclude({foo: obj1, bar: obj2}, {foo: {a: 9}});
+   *     assert.notDeepInclude({foo: obj1, bar: obj2}, {foo: {a: 1}, bar: {b: 9}});
    *
-   * @name notMatch
-   * @param {Mixed} value
-   * @param {RegExp} regexp
+   * @name notDeepInclude
+   * @param {Array|String} haystack
+   * @param {Mixed} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.notMatch = function (exp, re, msg) {
-    new Assertion(exp, msg).to.not.match(re);
+  assert.notDeepInclude = function (exp, inc, msg) {
+    new Assertion(exp, msg, assert.notDeepInclude, true).not.deep.include(inc);
   };
 
   /**
-   * ### .property(object, property, [message])
+   * ### .nestedInclude(haystack, needle, [message])
    *
-   * Asserts that `object` has a property named by `property`.
+   * Asserts that 'haystack' includes 'needle'.
+   * Can be used to assert the inclusion of a subset of properties in an
+   * object.
+   * Enables the use of dot- and bracket-notation for referencing nested
+   * properties.
+   * '[]' and '.' in property names can be escaped using double backslashes.
    *
-   *     assert.property({ tea: { green: 'matcha' }}, 'tea');
+   *     assert.nestedInclude({'.a': {'b': 'x'}}, {'\\.a.[b]': 'x'});
+   *     assert.nestedInclude({'a': {'[b]': 'x'}}, {'a.\\[b\\]': 'x'});
    *
-   * @name property
-   * @param {Object} object
-   * @param {String} property
+   * @name nestedInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.property = function (obj, prop, msg) {
-    new Assertion(obj, msg).to.have.property(prop);
+  assert.nestedInclude = function (exp, inc, msg) {
+    new Assertion(exp, msg, assert.nestedInclude, true).nested.include(inc);
   };
 
   /**
-   * ### .notProperty(object, property, [message])
+   * ### .notNestedInclude(haystack, needle, [message])
    *
-   * Asserts that `object` does _not_ have a property named by `property`.
+   * Asserts that 'haystack' does not include 'needle'.
+   * Can be used to assert the absence of a subset of properties in an
+   * object.
+   * Enables the use of dot- and bracket-notation for referencing nested
+   * properties.
+   * '[]' and '.' in property names can be escaped using double backslashes.
    *
-   *     assert.notProperty({ tea: { green: 'matcha' }}, 'coffee');
+   *     assert.notNestedInclude({'.a': {'b': 'x'}}, {'\\.a.b': 'y'});
+   *     assert.notNestedInclude({'a': {'[b]': 'x'}}, {'a.\\[b\\]': 'y'});
    *
-   * @name notProperty
-   * @param {Object} object
-   * @param {String} property
+   * @name notNestedInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.notProperty = function (obj, prop, msg) {
-    new Assertion(obj, msg).to.not.have.property(prop);
+  assert.notNestedInclude = function (exp, inc, msg) {
+    new Assertion(exp, msg, assert.notNestedInclude, true)
+      .not.nested.include(inc);
   };
 
   /**
-   * ### .deepProperty(object, property, [message])
+   * ### .deepNestedInclude(haystack, needle, [message])
    *
-   * Asserts that `object` has a property named by `property`, which can be a
-   * string using dot- and bracket-notation for deep reference.
+   * Asserts that 'haystack' includes 'needle'.
+   * Can be used to assert the inclusion of a subset of properties in an
+   * object while checking for deep equality.
+   * Enables the use of dot- and bracket-notation for referencing nested
+   * properties.
+   * '[]' and '.' in property names can be escaped using double backslashes.
    *
-   *     assert.deepProperty({ tea: { green: 'matcha' }}, 'tea.green');
+   *     assert.deepNestedInclude({a: {b: [{x: 1}]}}, {'a.b[0]': {x: 1}});
+   *     assert.deepNestedInclude({'.a': {'[b]': {x: 1}}}, {'\\.a.\\[b\\]': {x: 1}});
    *
-   * @name deepProperty
-   * @param {Object} object
-   * @param {String} property
+   * @name deepNestedInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.deepProperty = function (obj, prop, msg) {
-    new Assertion(obj, msg).to.have.deep.property(prop);
+  assert.deepNestedInclude = function(exp, inc, msg) {
+    new Assertion(exp, msg, assert.deepNestedInclude, true)
+      .deep.nested.include(inc);
   };
 
   /**
-   * ### .notDeepProperty(object, property, [message])
+   * ### .notDeepNestedInclude(haystack, needle, [message])
    *
-   * Asserts that `object` does _not_ have a property named by `property`, which
-   * can be a string using dot- and bracket-notation for deep reference.
+   * Asserts that 'haystack' does not include 'needle'.
+   * Can be used to assert the absence of a subset of properties in an
+   * object while checking for deep equality.
+   * Enables the use of dot- and bracket-notation for referencing nested
+   * properties.
+   * '[]' and '.' in property names can be escaped using double backslashes.
    *
-   *     assert.notDeepProperty({ tea: { green: 'matcha' }}, 'tea.oolong');
+   *     assert.notDeepNestedInclude({a: {b: [{x: 1}]}}, {'a.b[0]': {y: 1}})
+   *     assert.notDeepNestedInclude({'.a': {'[b]': {x: 1}}}, {'\\.a.\\[b\\]': {y: 2}});
    *
-   * @name notDeepProperty
-   * @param {Object} object
-   * @param {String} property
+   * @name notDeepNestedInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.notDeepProperty = function (obj, prop, msg) {
-    new Assertion(obj, msg).to.not.have.deep.property(prop);
+  assert.notDeepNestedInclude = function(exp, inc, msg) {
+    new Assertion(exp, msg, assert.notDeepNestedInclude, true)
+      .not.deep.nested.include(inc);
   };
 
   /**
-   * ### .propertyVal(object, property, value, [message])
+   * ### .ownInclude(haystack, needle, [message])
    *
-   * Asserts that `object` has a property named by `property` with value given
-   * by `value`.
+   * Asserts that 'haystack' includes 'needle'.
+   * Can be used to assert the inclusion of a subset of properties in an
+   * object while ignoring inherited properties.
    *
-   *     assert.propertyVal({ tea: 'is good' }, 'tea', 'is good');
+   *     assert.ownInclude({ a: 1 }, { a: 1 });
    *
-   * @name propertyVal
-   * @param {Object} object
-   * @param {String} property
-   * @param {Mixed} value
+   * @name ownInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.propertyVal = function (obj, prop, val, msg) {
-    new Assertion(obj, msg).to.have.property(prop, val);
+  assert.ownInclude = function(exp, inc, msg) {
+    new Assertion(exp, msg, assert.ownInclude, true).own.include(inc);
   };
 
   /**
-   * ### .propertyNotVal(object, property, value, [message])
+   * ### .notOwnInclude(haystack, needle, [message])
    *
-   * Asserts that `object` has a property named by `property`, but with a value
-   * different from that given by `value`.
+   * Asserts that 'haystack' includes 'needle'.
+   * Can be used to assert the absence of a subset of properties in an
+   * object while ignoring inherited properties.
    *
-   *     assert.propertyNotVal({ tea: 'is good' }, 'tea', 'is bad');
+   *     Object.prototype.b = 2;
    *
-   * @name propertyNotVal
-   * @param {Object} object
-   * @param {String} property
-   * @param {Mixed} value
+   *     assert.notOwnInclude({ a: 1 }, { b: 2 });
+   *
+   * @name notOwnInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.propertyNotVal = function (obj, prop, val, msg) {
-    new Assertion(obj, msg).to.not.have.property(prop, val);
+  assert.notOwnInclude = function(exp, inc, msg) {
+    new Assertion(exp, msg, assert.notOwnInclude, true).not.own.include(inc);
   };
 
   /**
-   * ### .deepPropertyVal(object, property, value, [message])
+   * ### .deepOwnInclude(haystack, needle, [message])
    *
-   * Asserts that `object` has a property named by `property` with value given
-   * by `value`. `property` can use dot- and bracket-notation for deep
-   * reference.
+   * Asserts that 'haystack' includes 'needle'.
+   * Can be used to assert the inclusion of a subset of properties in an
+   * object while ignoring inherited properties and checking for deep equality.
    *
-   *     assert.deepPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'matcha');
+   *      assert.deepOwnInclude({a: {b: 2}}, {a: {b: 2}});
    *
-   * @name deepPropertyVal
-   * @param {Object} object
-   * @param {String} property
-   * @param {Mixed} value
+   * @name deepOwnInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.deepPropertyVal = function (obj, prop, val, msg) {
-    new Assertion(obj, msg).to.have.deep.property(prop, val);
+  assert.deepOwnInclude = function(exp, inc, msg) {
+    new Assertion(exp, msg, assert.deepOwnInclude, true)
+      .deep.own.include(inc);
   };
 
-  /**
-   * ### .deepPropertyNotVal(object, property, value, [message])
+   /**
+   * ### .notDeepOwnInclude(haystack, needle, [message])
    *
-   * Asserts that `object` has a property named by `property`, but with a value
-   * different from that given by `value`. `property` can use dot- and
-   * bracket-notation for deep reference.
+   * Asserts that 'haystack' includes 'needle'.
+   * Can be used to assert the absence of a subset of properties in an
+   * object while ignoring inherited properties and checking for deep equality.
    *
-   *     assert.deepPropertyNotVal({ tea: { green: 'matcha' }}, 'tea.green', 'konacha');
+   *      assert.notDeepOwnInclude({a: {b: 2}}, {a: {c: 3}});
    *
-   * @name deepPropertyNotVal
-   * @param {Object} object
-   * @param {String} property
-   * @param {Mixed} value
+   * @name notDeepOwnInclude
+   * @param {Object} haystack
+   * @param {Object} needle
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.deepPropertyNotVal = function (obj, prop, val, msg) {
-    new Assertion(obj, msg).to.not.have.deep.property(prop, val);
+  assert.notDeepOwnInclude = function(exp, inc, msg) {
+    new Assertion(exp, msg, assert.notDeepOwnInclude, true)
+      .not.deep.own.include(inc);
   };
 
   /**
-   * ### .lengthOf(object, length, [message])
+   * ### .match(value, regexp, [message])
    *
-   * Asserts that `object` has a `length` property with the expected value.
+   * Asserts that `value` matches the regular expression `regexp`.
    *
-   *     assert.lengthOf([1,2,3], 3, 'array has length of 3');
-   *     assert.lengthOf('foobar', 6, 'string has length of 6');
+   *     assert.match('foobar', /^foo/, 'regexp matches');
    *
-   * @name lengthOf
-   * @param {Mixed} object
-   * @param {Number} length
+   * @name match
+   * @param {Mixed} value
+   * @param {RegExp} regexp
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.lengthOf = function (exp, len, msg) {
-    new Assertion(exp, msg).to.have.length(len);
+  assert.match = function (exp, re, msg) {
+    new Assertion(exp, msg, assert.match, true).to.match(re);
   };
 
   /**
-   * ### .throws(function, [constructor/string/regexp], [string/regexp], [message])
+   * ### .notMatch(value, regexp, [message])
    *
-   * Asserts that `function` will throw an error that is an instance of
-   * `constructor`, or alternately that it will throw an error with message
-   * matching `regexp`.
+   * Asserts that `value` does not match the regular expression `regexp`.
    *
-   *     assert.throws(fn, 'function throws a reference error');
-   *     assert.throws(fn, /function throws a reference error/);
-   *     assert.throws(fn, ReferenceError);
-   *     assert.throws(fn, ReferenceError, 'function throws a reference error');
-   *     assert.throws(fn, ReferenceError, /function throws a reference error/);
+   *     assert.notMatch('foobar', /^foo/, 'regexp does not match');
    *
-   * @name throws
-   * @alias throw
-   * @alias Throw
-   * @param {Function} function
-   * @param {ErrorConstructor} constructor
+   * @name notMatch
+   * @param {Mixed} value
    * @param {RegExp} regexp
    * @param {String} message
-   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
    * @namespace Assert
    * @api public
    */
 
-  assert.throws = function (fn, errt, errs, msg) {
-    if ('string' === typeof errt || errt instanceof RegExp) {
-      errs = errt;
-      errt = null;
-    }
-
-    var assertErr = new Assertion(fn, msg).to.throw(errt, errs);
-    return flag(assertErr, 'object');
+  assert.notMatch = function (exp, re, msg) {
+    new Assertion(exp, msg, assert.notMatch, true).to.not.match(re);
   };
 
   /**
-   * ### .doesNotThrow(function, [constructor/regexp], [message])
+   * ### .property(object, property, [message])
    *
-   * Asserts that `function` will _not_ throw an error that is an instance of
-   * `constructor`, or alternately that it will not throw an error with message
-   * matching `regexp`.
+   * Asserts that `object` has a direct or inherited property named by
+   * `property`.
    *
-   *     assert.doesNotThrow(fn, Error, 'function does not throw');
+   *     assert.property({ tea: { green: 'matcha' }}, 'tea');
+   *     assert.property({ tea: { green: 'matcha' }}, 'toString');
    *
-   * @name doesNotThrow
-   * @param {Function} function
-   * @param {ErrorConstructor} constructor
-   * @param {RegExp} regexp
+   * @name property
+   * @param {Object} object
+   * @param {String} property
    * @param {String} message
-   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
    * @namespace Assert
    * @api public
    */
 
-  assert.doesNotThrow = function (fn, type, msg) {
-    if ('string' === typeof type) {
-      msg = type;
-      type = null;
-    }
-
-    new Assertion(fn, msg).to.not.Throw(type);
+  assert.property = function (obj, prop, msg) {
+    new Assertion(obj, msg, assert.property, true).to.have.property(prop);
   };
 
   /**
-   * ### .operator(val1, operator, val2, [message])
+   * ### .notProperty(object, property, [message])
    *
-   * Compares two values using `operator`.
+   * Asserts that `object` does _not_ have a direct or inherited property named
+   * by `property`.
    *
-   *     assert.operator(1, '<', 2, 'everything is ok');
-   *     assert.operator(1, '>', 2, 'this will fail');
+   *     assert.notProperty({ tea: { green: 'matcha' }}, 'coffee');
    *
-   * @name operator
-   * @param {Mixed} val1
-   * @param {String} operator
-   * @param {Mixed} val2
+   * @name notProperty
+   * @param {Object} object
+   * @param {String} property
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.operator = function (val, operator, val2, msg) {
-    var ok;
-    switch(operator) {
-      case '==':
-        ok = val == val2;
-        break;
-      case '===':
-        ok = val === val2;
-        break;
-      case '>':
-        ok = val > val2;
-        break;
-      case '>=':
-        ok = val >= val2;
-        break;
-      case '<':
-        ok = val < val2;
-        break;
-      case '<=':
-        ok = val <= val2;
-        break;
-      case '!=':
-        ok = val != val2;
-        break;
-      case '!==':
-        ok = val !== val2;
-        break;
-      default:
-        throw new Error('Invalid operator "' + operator + '"');
-    }
-    var test = new Assertion(ok, msg);
-    test.assert(
-        true === flag(test, 'object')
-      , 'expected ' + util.inspect(val) + ' to be ' + operator + ' ' + util.inspect(val2)
-      , 'expected ' + util.inspect(val) + ' to not be ' + operator + ' ' + util.inspect(val2) );
+  assert.notProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg, assert.notProperty, true)
+      .to.not.have.property(prop);
   };
 
   /**
-   * ### .closeTo(actual, expected, delta, [message])
+   * ### .propertyVal(object, property, value, [message])
    *
-   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   * Asserts that `object` has a direct or inherited property named by
+   * `property` with a value given by `value`. Uses a strict equality check
+   * (===).
    *
-   *     assert.closeTo(1.5, 1, 0.5, 'numbers are close');
+   *     assert.propertyVal({ tea: 'is good' }, 'tea', 'is good');
    *
-   * @name closeTo
-   * @param {Number} actual
-   * @param {Number} expected
-   * @param {Number} delta
+   * @name propertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.closeTo = function (act, exp, delta, msg) {
-    new Assertion(act, msg).to.be.closeTo(exp, delta);
+  assert.propertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.propertyVal, true)
+      .to.have.property(prop, val);
   };
 
   /**
-   * ### .approximately(actual, expected, delta, [message])
+   * ### .notPropertyVal(object, property, value, [message])
    *
-   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   * Asserts that `object` does _not_ have a direct or inherited property named
+   * by `property` with value given by `value`. Uses a strict equality check
+   * (===).
    *
-   *     assert.approximately(1.5, 1, 0.5, 'numbers are close');
+   *     assert.notPropertyVal({ tea: 'is good' }, 'tea', 'is bad');
+   *     assert.notPropertyVal({ tea: 'is good' }, 'coffee', 'is good');
    *
-   * @name approximately
-   * @param {Number} actual
-   * @param {Number} expected
-   * @param {Number} delta
+   * @name notPropertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.approximately = function (act, exp, delta, msg) {
-    new Assertion(act, msg).to.be.approximately(exp, delta);
+  assert.notPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.notPropertyVal, true)
+      .to.not.have.property(prop, val);
   };
 
   /**
-   * ### .sameMembers(set1, set2, [message])
+   * ### .deepPropertyVal(object, property, value, [message])
    *
-   * Asserts that `set1` and `set2` have the same members.
-   * Order is not taken into account.
+   * Asserts that `object` has a direct or inherited property named by
+   * `property` with a value given by `value`. Uses a deep equality check.
    *
-   *     assert.sameMembers([ 1, 2, 3 ], [ 2, 1, 3 ], 'same members');
+   *     assert.deepPropertyVal({ tea: { green: 'matcha' } }, 'tea', { green: 'matcha' });
    *
-   * @name sameMembers
-   * @param {Array} set1
-   * @param {Array} set2
+   * @name deepPropertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.sameMembers = function (set1, set2, msg) {
-    new Assertion(set1, msg).to.have.same.members(set2);
-  }
+  assert.deepPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.deepPropertyVal, true)
+      .to.have.deep.property(prop, val);
+  };
 
   /**
-   * ### .sameDeepMembers(set1, set2, [message])
+   * ### .notDeepPropertyVal(object, property, value, [message])
    *
-   * Asserts that `set1` and `set2` have the same members - using a deep equality checking.
-   * Order is not taken into account.
+   * Asserts that `object` does _not_ have a direct or inherited property named
+   * by `property` with value given by `value`. Uses a deep equality check.
    *
-   *     assert.sameDeepMembers([ {b: 3}, {a: 2}, {c: 5} ], [ {c: 5}, {b: 3}, {a: 2} ], 'same deep members');
+   *     assert.notDeepPropertyVal({ tea: { green: 'matcha' } }, 'tea', { black: 'matcha' });
+   *     assert.notDeepPropertyVal({ tea: { green: 'matcha' } }, 'tea', { green: 'oolong' });
+   *     assert.notDeepPropertyVal({ tea: { green: 'matcha' } }, 'coffee', { green: 'matcha' });
    *
-   * @name sameDeepMembers
-   * @param {Array} set1
-   * @param {Array} set2
+   * @name notDeepPropertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
    * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.sameDeepMembers = function (set1, set2, msg) {
-    new Assertion(set1, msg).to.have.same.deep.members(set2);
-  }
+  assert.notDeepPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.notDeepPropertyVal, true)
+      .to.not.have.deep.property(prop, val);
+  };
 
   /**
-   * ### .includeMembers(superset, subset, [message])
+   * ### .ownProperty(object, property, [message])
    *
-   * Asserts that `subset` is included in `superset`.
-   * Order is not taken into account.
+   * Asserts that `object` has a direct property named by `property`. Inherited
+   * properties aren't checked.
    *
-   *     assert.includeMembers([ 1, 2, 3 ], [ 2, 1 ], 'include members');
+   *     assert.ownProperty({ tea: { green: 'matcha' }}, 'tea');
    *
-   * @name includeMembers
-   * @param {Array} superset
-   * @param {Array} subset
+   * @name ownProperty
+   * @param {Object} object
+   * @param {String} property
    * @param {String} message
-   * @namespace Assert
    * @api public
    */
 
-  assert.includeMembers = function (superset, subset, msg) {
-    new Assertion(superset, msg).to.include.members(subset);
-  }
+  assert.ownProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg, assert.ownProperty, true)
+      .to.have.own.property(prop);
+  };
 
   /**
-   * ### .includeDeepMembers(superset, subset, [message])
+   * ### .notOwnProperty(object, property, [message])
    *
-   * Asserts that `subset` is included in `superset` - using deep equality checking.
-   * Order is not taken into account.
-   * Duplicates are ignored.
+   * Asserts that `object` does _not_ have a direct property named by
+   * `property`. Inherited properties aren't checked.
    *
-   *     assert.includeDeepMembers([ {a: 1}, {b: 2}, {c: 3} ], [ {b: 2}, {a: 1}, {b: 2} ], 'include deep members');
+   *     assert.notOwnProperty({ tea: { green: 'matcha' }}, 'coffee');
+   *     assert.notOwnProperty({}, 'toString');
    *
-   * @name includeDeepMembers
-   * @param {Array} superset
-   * @param {Array} subset
+   * @name notOwnProperty
+   * @param {Object} object
+   * @param {String} property
    * @param {String} message
-   * @namespace Assert
    * @api public
    */
 
-  assert.includeDeepMembers = function (superset, subset, msg) {
-    new Assertion(superset, msg).to.include.deep.members(subset);
-  }
+  assert.notOwnProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg, assert.notOwnProperty, true)
+      .to.not.have.own.property(prop);
+  };
 
   /**
-   * ### .oneOf(inList, list, [message])
+   * ### .ownPropertyVal(object, property, value, [message])
    *
-   * Asserts that non-object, non-array value `inList` appears in the flat array `list`.
+   * Asserts that `object` has a direct property named by `property` and a value
+   * equal to the provided `value`. Uses a strict equality check (===).
+   * Inherited properties aren't checked.
    *
-   *     assert.oneOf(1, [ 2, 1 ], 'Not found in list');
+   *     assert.ownPropertyVal({ coffee: 'is good'}, 'coffee', 'is good');
    *
-   * @name oneOf
-   * @param {*} inList
-   * @param {Array<*>} list
+   * @name ownPropertyVal
+   * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
    * @param {String} message
-   * @namespace Assert
    * @api public
    */
 
-  assert.oneOf = function (inList, list, msg) {
-    new Assertion(inList, msg).to.be.oneOf(list);
-  }
+  assert.ownPropertyVal = function (obj, prop, value, msg) {
+    new Assertion(obj, msg, assert.ownPropertyVal, true)
+      .to.have.own.property(prop, value);
+  };
 
-   /**
-   * ### .changes(function, object, property)
+  /**
+   * ### .notOwnPropertyVal(object, property, value, [message])
    *
-   * Asserts that a function changes the value of a property
+   * Asserts that `object` does _not_ have a direct property named by `property`
+   * with a value equal to the provided `value`. Uses a strict equality check
+   * (===). Inherited properties aren't checked.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 22 };
-   *     assert.changes(fn, obj, 'val');
+   *     assert.notOwnPropertyVal({ tea: 'is better'}, 'tea', 'is worse');
+   *     assert.notOwnPropertyVal({}, 'toString', Object.prototype.toString);
    *
-   * @name changes
-   * @param {Function} modifier function
+   * @name notOwnPropertyVal
    * @param {Object} object
-   * @param {String} property name
-   * @param {String} message _optional_
-   * @namespace Assert
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @api public
    */
 
-  assert.changes = function (fn, obj, prop) {
-    new Assertion(fn).to.change(obj, prop);
-  }
+  assert.notOwnPropertyVal = function (obj, prop, value, msg) {
+    new Assertion(obj, msg, assert.notOwnPropertyVal, true)
+      .to.not.have.own.property(prop, value);
+  };
 
-   /**
-   * ### .doesNotChange(function, object, property)
+  /**
+   * ### .deepOwnPropertyVal(object, property, value, [message])
    *
-   * Asserts that a function does not changes the value of a property
+   * Asserts that `object` has a direct property named by `property` and a value
+   * equal to the provided `value`. Uses a deep equality check. Inherited
+   * properties aren't checked.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { console.log('foo'); };
-   *     assert.doesNotChange(fn, obj, 'val');
+   *     assert.deepOwnPropertyVal({ tea: { green: 'matcha' } }, 'tea', { green: 'matcha' });
    *
-   * @name doesNotChange
-   * @param {Function} modifier function
+   * @name deepOwnPropertyVal
    * @param {Object} object
-   * @param {String} property name
-   * @param {String} message _optional_
-   * @namespace Assert
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @api public
    */
 
-  assert.doesNotChange = function (fn, obj, prop) {
-    new Assertion(fn).to.not.change(obj, prop);
-  }
+  assert.deepOwnPropertyVal = function (obj, prop, value, msg) {
+    new Assertion(obj, msg, assert.deepOwnPropertyVal, true)
+      .to.have.deep.own.property(prop, value);
+  };
 
-   /**
-   * ### .increases(function, object, property)
+  /**
+   * ### .notDeepOwnPropertyVal(object, property, value, [message])
    *
-   * Asserts that a function increases an object property
+   * Asserts that `object` does _not_ have a direct property named by `property`
+   * with a value equal to the provided `value`. Uses a deep equality check.
+   * Inherited properties aren't checked.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 13 };
-   *     assert.increases(fn, obj, 'val');
+   *     assert.notDeepOwnPropertyVal({ tea: { green: 'matcha' } }, 'tea', { black: 'matcha' });
+   *     assert.notDeepOwnPropertyVal({ tea: { green: 'matcha' } }, 'tea', { green: 'oolong' });
+   *     assert.notDeepOwnPropertyVal({ tea: { green: 'matcha' } }, 'coffee', { green: 'matcha' });
+   *     assert.notDeepOwnPropertyVal({}, 'toString', Object.prototype.toString);
    *
-   * @name increases
-   * @param {Function} modifier function
+   * @name notDeepOwnPropertyVal
    * @param {Object} object
-   * @param {String} property name
-   * @param {String} message _optional_
-   * @namespace Assert
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @api public
    */
 
-  assert.increases = function (fn, obj, prop) {
-    new Assertion(fn).to.increase(obj, prop);
-  }
+  assert.notDeepOwnPropertyVal = function (obj, prop, value, msg) {
+    new Assertion(obj, msg, assert.notDeepOwnPropertyVal, true)
+      .to.not.have.deep.own.property(prop, value);
+  };
 
-   /**
-   * ### .doesNotIncrease(function, object, property)
+  /**
+   * ### .nestedProperty(object, property, [message])
    *
-   * Asserts that a function does not increase object property
+   * Asserts that `object` has a direct or inherited property named by
+   * `property`, which can be a string using dot- and bracket-notation for
+   * nested reference.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 8 };
-   *     assert.doesNotIncrease(fn, obj, 'val');
+   *     assert.nestedProperty({ tea: { green: 'matcha' }}, 'tea.green');
    *
-   * @name doesNotIncrease
-   * @param {Function} modifier function
+   * @name nestedProperty
    * @param {Object} object
-   * @param {String} property name
-   * @param {String} message _optional_
+   * @param {String} property
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.doesNotIncrease = function (fn, obj, prop) {
-    new Assertion(fn).to.not.increase(obj, prop);
-  }
+  assert.nestedProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg, assert.nestedProperty, true)
+      .to.have.nested.property(prop);
+  };
 
-   /**
-   * ### .decreases(function, object, property)
+  /**
+   * ### .notNestedProperty(object, property, [message])
    *
-   * Asserts that a function decreases an object property
+   * Asserts that `object` does _not_ have a property named by `property`, which
+   * can be a string using dot- and bracket-notation for nested reference. The
+   * property cannot exist on the object nor anywhere in its prototype chain.
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 5 };
-   *     assert.decreases(fn, obj, 'val');
+   *     assert.notNestedProperty({ tea: { green: 'matcha' }}, 'tea.oolong');
    *
-   * @name decreases
-   * @param {Function} modifier function
+   * @name notNestedProperty
    * @param {Object} object
-   * @param {String} property name
-   * @param {String} message _optional_
+   * @param {String} property
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.decreases = function (fn, obj, prop) {
-    new Assertion(fn).to.decrease(obj, prop);
-  }
+  assert.notNestedProperty = function (obj, prop, msg) {
+    new Assertion(obj, msg, assert.notNestedProperty, true)
+      .to.not.have.nested.property(prop);
+  };
 
-   /**
-   * ### .doesNotDecrease(function, object, property)
+  /**
+   * ### .nestedPropertyVal(object, property, value, [message])
    *
-   * Asserts that a function does not decreases an object property
+   * Asserts that `object` has a property named by `property` with value given
+   * by `value`. `property` can use dot- and bracket-notation for nested
+   * reference. Uses a strict equality check (===).
    *
-   *     var obj = { val: 10 };
-   *     var fn = function() { obj.val = 15 };
-   *     assert.doesNotDecrease(fn, obj, 'val');
+   *     assert.nestedPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'matcha');
    *
-   * @name doesNotDecrease
-   * @param {Function} modifier function
+   * @name nestedPropertyVal
    * @param {Object} object
-   * @param {String} property name
-   * @param {String} message _optional_
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.doesNotDecrease = function (fn, obj, prop) {
-    new Assertion(fn).to.not.decrease(obj, prop);
-  }
+  assert.nestedPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.nestedPropertyVal, true)
+      .to.have.nested.property(prop, val);
+  };
 
-  /*!
-   * ### .ifError(object)
+  /**
+   * ### .notNestedPropertyVal(object, property, value, [message])
    *
-   * Asserts if value is not a false value, and throws if it is a true value.
-   * This is added to allow for chai to be a drop-in replacement for Node's
-   * assert class.
+   * Asserts that `object` does _not_ have a property named by `property` with
+   * value given by `value`. `property` can use dot- and bracket-notation for
+   * nested reference. Uses a strict equality check (===).
    *
-   *     var err = new Error('I am a custom error');
-   *     assert.ifError(err); // Rethrows err!
+   *     assert.notNestedPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'konacha');
+   *     assert.notNestedPropertyVal({ tea: { green: 'matcha' }}, 'coffee.green', 'matcha');
    *
-   * @name ifError
+   * @name notNestedPropertyVal
    * @param {Object} object
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.ifError = function (val) {
-    if (val) {
-      throw(val);
-    }
+  assert.notNestedPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.notNestedPropertyVal, true)
+      .to.not.have.nested.property(prop, val);
   };
 
   /**
-   * ### .isExtensible(object)
+   * ### .deepNestedPropertyVal(object, property, value, [message])
    *
-   * Asserts that `object` is extensible (can have new properties added to it).
+   * Asserts that `object` has a property named by `property` with a value given
+   * by `value`. `property` can use dot- and bracket-notation for nested
+   * reference. Uses a deep equality check.
    *
-   *     assert.isExtensible({});
+   *     assert.deepNestedPropertyVal({ tea: { green: { matcha: 'yum' } } }, 'tea.green', { matcha: 'yum' });
    *
-   * @name isExtensible
-   * @alias extensible
+   * @name deepNestedPropertyVal
    * @param {Object} object
-   * @param {String} message _optional_
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.isExtensible = function (obj, msg) {
-    new Assertion(obj, msg).to.be.extensible;
+  assert.deepNestedPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.deepNestedPropertyVal, true)
+      .to.have.deep.nested.property(prop, val);
   };
 
   /**
-   * ### .isNotExtensible(object)
-   *
-   * Asserts that `object` is _not_ extensible.
+   * ### .notDeepNestedPropertyVal(object, property, value, [message])
    *
-   *     var nonExtensibleObject = Object.preventExtensions({});
-   *     var sealedObject = Object.seal({});
-   *     var frozenObject = Object.freese({});
+   * Asserts that `object` does _not_ have a property named by `property` with
+   * value given by `value`. `property` can use dot- and bracket-notation for
+   * nested reference. Uses a deep equality check.
    *
-   *     assert.isNotExtensible(nonExtensibleObject);
-   *     assert.isNotExtensible(sealedObject);
-   *     assert.isNotExtensible(frozenObject);
+   *     assert.notDeepNestedPropertyVal({ tea: { green: { matcha: 'yum' } } }, 'tea.green', { oolong: 'yum' });
+   *     assert.notDeepNestedPropertyVal({ tea: { green: { matcha: 'yum' } } }, 'tea.green', { matcha: 'yuck' });
+   *     assert.notDeepNestedPropertyVal({ tea: { green: { matcha: 'yum' } } }, 'tea.black', { matcha: 'yum' });
    *
-   * @name isNotExtensible
-   * @alias notExtensible
+   * @name notDeepNestedPropertyVal
    * @param {Object} object
-   * @param {String} message _optional_
+   * @param {String} property
+   * @param {Mixed} value
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.isNotExtensible = function (obj, msg) {
-    new Assertion(obj, msg).to.not.be.extensible;
-  };
+  assert.notDeepNestedPropertyVal = function (obj, prop, val, msg) {
+    new Assertion(obj, msg, assert.notDeepNestedPropertyVal, true)
+      .to.not.have.deep.nested.property(prop, val);
+  }
 
   /**
-   * ### .isSealed(object)
-   *
-   * Asserts that `object` is sealed (cannot have new properties added to it
-   * and its existing properties cannot be removed).
+   * ### .lengthOf(object, length, [message])
    *
-   *     var sealedObject = Object.seal({});
-   *     var frozenObject = Object.seal({});
+   * Asserts that `object` has a `length` or `size` with the expected value.
    *
-   *     assert.isSealed(sealedObject);
-   *     assert.isSealed(frozenObject);
+   *     assert.lengthOf([1,2,3], 3, 'array has length of 3');
+   *     assert.lengthOf('foobar', 6, 'string has length of 6');
+   *     assert.lengthOf(new Set([1,2,3]), 3, 'set has size of 3');
+   *     assert.lengthOf(new Map([['a',1],['b',2],['c',3]]), 3, 'map has size of 3');
    *
-   * @name isSealed
-   * @alias sealed
-   * @param {Object} object
-   * @param {String} message _optional_
+   * @name lengthOf
+   * @param {Mixed} object
+   * @param {Number} length
+   * @param {String} message
    * @namespace Assert
    * @api public
    */
 
-  assert.isSealed = function (obj, msg) {
-    new Assertion(obj, msg).to.be.sealed;
+  assert.lengthOf = function (exp, len, msg) {
+    new Assertion(exp, msg, assert.lengthOf, true).to.have.lengthOf(len);
   };
 
   /**
-   * ### .isNotSealed(object)
+   * ### .hasAnyKeys(object, [keys], [message])
    *
-   * Asserts that `object` is _not_ sealed.
+   * Asserts that `object` has at least one of the `keys` provided.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
    *
-   *     assert.isNotSealed({});
+   *     assert.hasAnyKeys({foo: 1, bar: 2, baz: 3}, ['foo', 'iDontExist', 'baz']);
+   *     assert.hasAnyKeys({foo: 1, bar: 2, baz: 3}, {foo: 30, iDontExist: 99, baz: 1337});
+   *     assert.hasAnyKeys(new Map([[{foo: 1}, 'bar'], ['key', 'value']]), [{foo: 1}, 'key']);
+   *     assert.hasAnyKeys(new Set([{foo: 'bar'}, 'anotherKey']), [{foo: 'bar'}, 'anotherKey']);
    *
-   * @name isNotSealed
-   * @alias notSealed
-   * @param {Object} object
-   * @param {String} message _optional_
-   * @namespace Assert
+   * @name hasAnyKeys
+   * @param {Mixed} object
+   * @param {Array|Object} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.hasAnyKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.hasAnyKeys, true).to.have.any.keys(keys);
+  }
+
+  /**
+   * ### .hasAllKeys(object, [keys], [message])
+   *
+   * Asserts that `object` has all and only all of the `keys` provided.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.hasAllKeys({foo: 1, bar: 2, baz: 3}, ['foo', 'bar', 'baz']);
+   *     assert.hasAllKeys({foo: 1, bar: 2, baz: 3}, {foo: 30, bar: 99, baz: 1337]);
+   *     assert.hasAllKeys(new Map([[{foo: 1}, 'bar'], ['key', 'value']]), [{foo: 1}, 'key']);
+   *     assert.hasAllKeys(new Set([{foo: 'bar'}, 'anotherKey'], [{foo: 'bar'}, 'anotherKey']);
+   *
+   * @name hasAllKeys
+   * @param {Mixed} object
+   * @param {String[]} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.hasAllKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.hasAllKeys, true).to.have.all.keys(keys);
+  }
+
+  /**
+   * ### .containsAllKeys(object, [keys], [message])
+   *
+   * Asserts that `object` has all of the `keys` provided but may have more keys not listed.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.containsAllKeys({foo: 1, bar: 2, baz: 3}, ['foo', 'baz']);
+   *     assert.containsAllKeys({foo: 1, bar: 2, baz: 3}, ['foo', 'bar', 'baz']);
+   *     assert.containsAllKeys({foo: 1, bar: 2, baz: 3}, {foo: 30, baz: 1337});
+   *     assert.containsAllKeys({foo: 1, bar: 2, baz: 3}, {foo: 30, bar: 99, baz: 1337});
+   *     assert.containsAllKeys(new Map([[{foo: 1}, 'bar'], ['key', 'value']]), [{foo: 1}]);
+   *     assert.containsAllKeys(new Map([[{foo: 1}, 'bar'], ['key', 'value']]), [{foo: 1}, 'key']);
+   *     assert.containsAllKeys(new Set([{foo: 'bar'}, 'anotherKey'], [{foo: 'bar'}]);
+   *     assert.containsAllKeys(new Set([{foo: 'bar'}, 'anotherKey'], [{foo: 'bar'}, 'anotherKey']);
+   *
+   * @name containsAllKeys
+   * @param {Mixed} object
+   * @param {String[]} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.containsAllKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.containsAllKeys, true)
+      .to.contain.all.keys(keys);
+  }
+
+  /**
+   * ### .doesNotHaveAnyKeys(object, [keys], [message])
+   *
+   * Asserts that `object` has none of the `keys` provided.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.doesNotHaveAnyKeys({foo: 1, bar: 2, baz: 3}, ['one', 'two', 'example']);
+   *     assert.doesNotHaveAnyKeys({foo: 1, bar: 2, baz: 3}, {one: 1, two: 2, example: 'foo'});
+   *     assert.doesNotHaveAnyKeys(new Map([[{foo: 1}, 'bar'], ['key', 'value']]), [{one: 'two'}, 'example']);
+   *     assert.doesNotHaveAnyKeys(new Set([{foo: 'bar'}, 'anotherKey'], [{one: 'two'}, 'example']);
+   *
+   * @name doesNotHaveAnyKeys
+   * @param {Mixed} object
+   * @param {String[]} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotHaveAnyKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.doesNotHaveAnyKeys, true)
+      .to.not.have.any.keys(keys);
+  }
+
+  /**
+   * ### .doesNotHaveAllKeys(object, [keys], [message])
+   *
+   * Asserts that `object` does not have at least one of the `keys` provided.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.doesNotHaveAllKeys({foo: 1, bar: 2, baz: 3}, ['one', 'two', 'example']);
+   *     assert.doesNotHaveAllKeys({foo: 1, bar: 2, baz: 3}, {one: 1, two: 2, example: 'foo'});
+   *     assert.doesNotHaveAllKeys(new Map([[{foo: 1}, 'bar'], ['key', 'value']]), [{one: 'two'}, 'example']);
+   *     assert.doesNotHaveAllKeys(new Set([{foo: 'bar'}, 'anotherKey'], [{one: 'two'}, 'example']);
+   *
+   * @name doesNotHaveAllKeys
+   * @param {Mixed} object
+   * @param {String[]} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotHaveAllKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.doesNotHaveAllKeys, true)
+      .to.not.have.all.keys(keys);
+  }
+
+  /**
+   * ### .hasAnyDeepKeys(object, [keys], [message])
+   *
+   * Asserts that `object` has at least one of the `keys` provided.
+   * Since Sets and Maps can have objects as keys you can use this assertion to perform
+   * a deep comparison.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.hasAnyDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [1, 2]]), {one: 'one'});
+   *     assert.hasAnyDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [1, 2]]), [{one: 'one'}, {two: 'two'}]);
+   *     assert.hasAnyDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [{two: 'two'}, 'valueTwo']]), [{one: 'one'}, {two: 'two'}]);
+   *     assert.hasAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), {one: 'one'});
+   *     assert.hasAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {three: 'three'}]);
+   *     assert.hasAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {two: 'two'}]);
+   *
+   * @name doesNotHaveAllKeys
+   * @param {Mixed} object
+   * @param {Array|Object} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.hasAnyDeepKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.hasAnyDeepKeys, true)
+      .to.have.any.deep.keys(keys);
+  }
+
+ /**
+   * ### .hasAllDeepKeys(object, [keys], [message])
+   *
+   * Asserts that `object` has all and only all of the `keys` provided.
+   * Since Sets and Maps can have objects as keys you can use this assertion to perform
+   * a deep comparison.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.hasAllDeepKeys(new Map([[{one: 'one'}, 'valueOne']]), {one: 'one'});
+   *     assert.hasAllDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [{two: 'two'}, 'valueTwo']]), [{one: 'one'}, {two: 'two'}]);
+   *     assert.hasAllDeepKeys(new Set([{one: 'one'}]), {one: 'one'});
+   *     assert.hasAllDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {two: 'two'}]);
+   *
+   * @name hasAllDeepKeys
+   * @param {Mixed} object
+   * @param {Array|Object} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.hasAllDeepKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.hasAllDeepKeys, true)
+      .to.have.all.deep.keys(keys);
+  }
+
+ /**
+   * ### .containsAllDeepKeys(object, [keys], [message])
+   *
+   * Asserts that `object` contains all of the `keys` provided.
+   * Since Sets and Maps can have objects as keys you can use this assertion to perform
+   * a deep comparison.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.containsAllDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [1, 2]]), {one: 'one'});
+   *     assert.containsAllDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [{two: 'two'}, 'valueTwo']]), [{one: 'one'}, {two: 'two'}]);
+   *     assert.containsAllDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), {one: 'one'});
+   *     assert.containsAllDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {two: 'two'}]);
+   *
+   * @name containsAllDeepKeys
+   * @param {Mixed} object
+   * @param {Array|Object} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.containsAllDeepKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.containsAllDeepKeys, true)
+      .to.contain.all.deep.keys(keys);
+  }
+
+ /**
+   * ### .doesNotHaveAnyDeepKeys(object, [keys], [message])
+   *
+   * Asserts that `object` has none of the `keys` provided.
+   * Since Sets and Maps can have objects as keys you can use this assertion to perform
+   * a deep comparison.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.doesNotHaveAnyDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [1, 2]]), {thisDoesNot: 'exist'});
+   *     assert.doesNotHaveAnyDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [{two: 'two'}, 'valueTwo']]), [{twenty: 'twenty'}, {fifty: 'fifty'}]);
+   *     assert.doesNotHaveAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), {twenty: 'twenty'});
+   *     assert.doesNotHaveAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{twenty: 'twenty'}, {fifty: 'fifty'}]);
+   *
+   * @name doesNotHaveAnyDeepKeys
+   * @param {Mixed} object
+   * @param {Array|Object} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotHaveAnyDeepKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.doesNotHaveAnyDeepKeys, true)
+      .to.not.have.any.deep.keys(keys);
+  }
+
+ /**
+   * ### .doesNotHaveAllDeepKeys(object, [keys], [message])
+   *
+   * Asserts that `object` does not have at least one of the `keys` provided.
+   * Since Sets and Maps can have objects as keys you can use this assertion to perform
+   * a deep comparison.
+   * You can also provide a single object instead of a `keys` array and its keys
+   * will be used as the expected set of keys.
+   *
+   *     assert.doesNotHaveAllDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [1, 2]]), {thisDoesNot: 'exist'});
+   *     assert.doesNotHaveAllDeepKeys(new Map([[{one: 'one'}, 'valueOne'], [{two: 'two'}, 'valueTwo']]), [{twenty: 'twenty'}, {one: 'one'}]);
+   *     assert.doesNotHaveAllDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), {twenty: 'twenty'});
+   *     assert.doesNotHaveAllDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {fifty: 'fifty'}]);
+   *
+   * @name doesNotHaveAllDeepKeys
+   * @param {Mixed} object
+   * @param {Array|Object} keys
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotHaveAllDeepKeys = function (obj, keys, msg) {
+    new Assertion(obj, msg, assert.doesNotHaveAllDeepKeys, true)
+      .to.not.have.all.deep.keys(keys);
+  }
+
+ /**
+   * ### .throws(fn, [errorLike/string/regexp], [string/regexp], [message])
+   *
+   * If `errorLike` is an `Error` constructor, asserts that `fn` will throw an error that is an
+   * instance of `errorLike`.
+   * If `errorLike` is an `Error` instance, asserts that the error thrown is the same
+   * instance as `errorLike`.
+   * If `errMsgMatcher` is provided, it also asserts that the error thrown will have a
+   * message matching `errMsgMatcher`.
+   *
+   *     assert.throws(fn, 'Error thrown must have this msg');
+   *     assert.throws(fn, /Error thrown must have a msg that matches this/);
+   *     assert.throws(fn, ReferenceError);
+   *     assert.throws(fn, errorInstance);
+   *     assert.throws(fn, ReferenceError, 'Error thrown must be a ReferenceError and have this msg');
+   *     assert.throws(fn, errorInstance, 'Error thrown must be the same errorInstance and have this msg');
+   *     assert.throws(fn, ReferenceError, /Error thrown must be a ReferenceError and match this/);
+   *     assert.throws(fn, errorInstance, /Error thrown must be the same errorInstance and match this/);
+   *
+   * @name throws
+   * @alias throw
+   * @alias Throw
+   * @param {Function} fn
+   * @param {ErrorConstructor|Error} errorLike
+   * @param {RegExp|String} errMsgMatcher
+   * @param {String} message
+   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.throws = function (fn, errorLike, errMsgMatcher, msg) {
+    if ('string' === typeof errorLike || errorLike instanceof RegExp) {
+      errMsgMatcher = errorLike;
+      errorLike = null;
+    }
+
+    var assertErr = new Assertion(fn, msg, assert.throws, true)
+      .to.throw(errorLike, errMsgMatcher);
+    return flag(assertErr, 'object');
+  };
+
+  /**
+   * ### .doesNotThrow(fn, [errorLike/string/regexp], [string/regexp], [message])
+   *
+   * If `errorLike` is an `Error` constructor, asserts that `fn` will _not_ throw an error that is an
+   * instance of `errorLike`.
+   * If `errorLike` is an `Error` instance, asserts that the error thrown is _not_ the same
+   * instance as `errorLike`.
+   * If `errMsgMatcher` is provided, it also asserts that the error thrown will _not_ have a
+   * message matching `errMsgMatcher`.
+   *
+   *     assert.doesNotThrow(fn, 'Any Error thrown must not have this message');
+   *     assert.doesNotThrow(fn, /Any Error thrown must not match this/);
+   *     assert.doesNotThrow(fn, Error);
+   *     assert.doesNotThrow(fn, errorInstance);
+   *     assert.doesNotThrow(fn, Error, 'Error must not have this message');
+   *     assert.doesNotThrow(fn, errorInstance, 'Error must not have this message');
+   *     assert.doesNotThrow(fn, Error, /Error must not match this/);
+   *     assert.doesNotThrow(fn, errorInstance, /Error must not match this/);
+   *
+   * @name doesNotThrow
+   * @param {Function} fn
+   * @param {ErrorConstructor} errorLike
+   * @param {RegExp|String} errMsgMatcher
+   * @param {String} message
+   * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotThrow = function (fn, errorLike, errMsgMatcher, msg) {
+    if ('string' === typeof errorLike || errorLike instanceof RegExp) {
+      errMsgMatcher = errorLike;
+      errorLike = null;
+    }
+
+    new Assertion(fn, msg, assert.doesNotThrow, true)
+      .to.not.throw(errorLike, errMsgMatcher);
+  };
+
+  /**
+   * ### .operator(val1, operator, val2, [message])
+   *
+   * Compares two values using `operator`.
+   *
+   *     assert.operator(1, '<', 2, 'everything is ok');
+   *     assert.operator(1, '>', 2, 'this will fail');
+   *
+   * @name operator
+   * @param {Mixed} val1
+   * @param {String} operator
+   * @param {Mixed} val2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.operator = function (val, operator, val2, msg) {
+    var ok;
+    switch(operator) {
+      case '==':
+        ok = val == val2;
+        break;
+      case '===':
+        ok = val === val2;
+        break;
+      case '>':
+        ok = val > val2;
+        break;
+      case '>=':
+        ok = val >= val2;
+        break;
+      case '<':
+        ok = val < val2;
+        break;
+      case '<=':
+        ok = val <= val2;
+        break;
+      case '!=':
+        ok = val != val2;
+        break;
+      case '!==':
+        ok = val !== val2;
+        break;
+      default:
+        msg = msg ? msg + ': ' : msg;
+        throw new chai.AssertionError(
+          msg + 'Invalid operator "' + operator + '"',
+          undefined,
+          assert.operator
+        );
+    }
+    var test = new Assertion(ok, msg, assert.operator, true);
+    test.assert(
+        true === flag(test, 'object')
+      , 'expected ' + util.inspect(val) + ' to be ' + operator + ' ' + util.inspect(val2)
+      , 'expected ' + util.inspect(val) + ' to not be ' + operator + ' ' + util.inspect(val2) );
+  };
+
+  /**
+   * ### .closeTo(actual, expected, delta, [message])
+   *
+   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   *
+   *     assert.closeTo(1.5, 1, 0.5, 'numbers are close');
+   *
+   * @name closeTo
+   * @param {Number} actual
+   * @param {Number} expected
+   * @param {Number} delta
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.closeTo = function (act, exp, delta, msg) {
+    new Assertion(act, msg, assert.closeTo, true).to.be.closeTo(exp, delta);
+  };
+
+  /**
+   * ### .approximately(actual, expected, delta, [message])
+   *
+   * Asserts that the target is equal `expected`, to within a +/- `delta` range.
+   *
+   *     assert.approximately(1.5, 1, 0.5, 'numbers are close');
+   *
+   * @name approximately
+   * @param {Number} actual
+   * @param {Number} expected
+   * @param {Number} delta
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.approximately = function (act, exp, delta, msg) {
+    new Assertion(act, msg, assert.approximately, true)
+      .to.be.approximately(exp, delta);
+  };
+
+  /**
+   * ### .sameMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` have the same members in any order. Uses a
+   * strict equality check (===).
+   *
+   *     assert.sameMembers([ 1, 2, 3 ], [ 2, 1, 3 ], 'same members');
+   *
+   * @name sameMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.sameMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.sameMembers, true)
+      .to.have.same.members(set2);
+  }
+
+  /**
+   * ### .notSameMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` don't have the same members in any order.
+   * Uses a strict equality check (===).
+   *
+   *     assert.notSameMembers([ 1, 2, 3 ], [ 5, 1, 3 ], 'not same members');
+   *
+   * @name notSameMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notSameMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.notSameMembers, true)
+      .to.not.have.same.members(set2);
+  }
+
+  /**
+   * ### .sameDeepMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` have the same members in any order. Uses a
+   * deep equality check.
+   *
+   *     assert.sameDeepMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [{ b: 2 }, { a: 1 }, { c: 3 }], 'same deep members');
+   *
+   * @name sameDeepMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.sameDeepMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.sameDeepMembers, true)
+      .to.have.same.deep.members(set2);
+  }
+
+  /**
+   * ### .notSameDeepMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` don't have the same members in any order.
+   * Uses a deep equality check.
+   *
+   *     assert.notSameDeepMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [{ b: 2 }, { a: 1 }, { f: 5 }], 'not same deep members');
+   *
+   * @name notSameDeepMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notSameDeepMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.notSameDeepMembers, true)
+      .to.not.have.same.deep.members(set2);
+  }
+
+  /**
+   * ### .sameOrderedMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` have the same members in the same order.
+   * Uses a strict equality check (===).
+   *
+   *     assert.sameOrderedMembers([ 1, 2, 3 ], [ 1, 2, 3 ], 'same ordered members');
+   *
+   * @name sameOrderedMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.sameOrderedMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.sameOrderedMembers, true)
+      .to.have.same.ordered.members(set2);
+  }
+
+  /**
+   * ### .notSameOrderedMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` don't have the same members in the same
+   * order. Uses a strict equality check (===).
+   *
+   *     assert.notSameOrderedMembers([ 1, 2, 3 ], [ 2, 1, 3 ], 'not same ordered members');
+   *
+   * @name notSameOrderedMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notSameOrderedMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.notSameOrderedMembers, true)
+      .to.not.have.same.ordered.members(set2);
+  }
+
+  /**
+   * ### .sameDeepOrderedMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` have the same members in the same order.
+   * Uses a deep equality check.
+   *
+   * assert.sameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 }, { c: 3 } ], 'same deep ordered members');
+   *
+   * @name sameDeepOrderedMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.sameDeepOrderedMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.sameDeepOrderedMembers, true)
+      .to.have.same.deep.ordered.members(set2);
+  }
+
+  /**
+   * ### .notSameDeepOrderedMembers(set1, set2, [message])
+   *
+   * Asserts that `set1` and `set2` don't have the same members in the same
+   * order. Uses a deep equality check.
+   *
+   * assert.notSameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 }, { z: 5 } ], 'not same deep ordered members');
+   * assert.notSameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { a: 1 }, { c: 3 } ], 'not same deep ordered members');
+   *
+   * @name notSameDeepOrderedMembers
+   * @param {Array} set1
+   * @param {Array} set2
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notSameDeepOrderedMembers = function (set1, set2, msg) {
+    new Assertion(set1, msg, assert.notSameDeepOrderedMembers, true)
+      .to.not.have.same.deep.ordered.members(set2);
+  }
+
+  /**
+   * ### .includeMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` is included in `superset` in any order. Uses a
+   * strict equality check (===). Duplicates are ignored.
+   *
+   *     assert.includeMembers([ 1, 2, 3 ], [ 2, 1, 2 ], 'include members');
+   *
+   * @name includeMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.includeMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.includeMembers, true)
+      .to.include.members(subset);
+  }
+
+  /**
+   * ### .notIncludeMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` isn't included in `superset` in any order. Uses a
+   * strict equality check (===). Duplicates are ignored.
+   *
+   *     assert.notIncludeMembers([ 1, 2, 3 ], [ 5, 1 ], 'not include members');
+   *
+   * @name notIncludeMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notIncludeMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.notIncludeMembers, true)
+      .to.not.include.members(subset);
+  }
+
+  /**
+   * ### .includeDeepMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` is included in `superset` in any order. Uses a deep
+   * equality check. Duplicates are ignored.
+   *
+   *     assert.includeDeepMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { a: 1 }, { b: 2 } ], 'include deep members');
+   *
+   * @name includeDeepMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.includeDeepMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.includeDeepMembers, true)
+      .to.include.deep.members(subset);
+  }
+
+  /**
+   * ### .notIncludeDeepMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` isn't included in `superset` in any order. Uses a
+   * deep equality check. Duplicates are ignored.
+   *
+   *     assert.notIncludeDeepMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { f: 5 } ], 'not include deep members');
+   *
+   * @name notIncludeDeepMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notIncludeDeepMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.notIncludeDeepMembers, true)
+      .to.not.include.deep.members(subset);
+  }
+
+  /**
+   * ### .includeOrderedMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` is included in `superset` in the same order
+   * beginning with the first element in `superset`. Uses a strict equality
+   * check (===).
+   *
+   *     assert.includeOrderedMembers([ 1, 2, 3 ], [ 1, 2 ], 'include ordered members');
+   *
+   * @name includeOrderedMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.includeOrderedMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.includeOrderedMembers, true)
+      .to.include.ordered.members(subset);
+  }
+
+  /**
+   * ### .notIncludeOrderedMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` isn't included in `superset` in the same order
+   * beginning with the first element in `superset`. Uses a strict equality
+   * check (===).
+   *
+   *     assert.notIncludeOrderedMembers([ 1, 2, 3 ], [ 2, 1 ], 'not include ordered members');
+   *     assert.notIncludeOrderedMembers([ 1, 2, 3 ], [ 2, 3 ], 'not include ordered members');
+   *
+   * @name notIncludeOrderedMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notIncludeOrderedMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.notIncludeOrderedMembers, true)
+      .to.not.include.ordered.members(subset);
+  }
+
+  /**
+   * ### .includeDeepOrderedMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` is included in `superset` in the same order
+   * beginning with the first element in `superset`. Uses a deep equality
+   * check.
+   *
+   *     assert.includeDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 } ], 'include deep ordered members');
+   *
+   * @name includeDeepOrderedMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.includeDeepOrderedMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.includeDeepOrderedMembers, true)
+      .to.include.deep.ordered.members(subset);
+  }
+
+  /**
+   * ### .notIncludeDeepOrderedMembers(superset, subset, [message])
+   *
+   * Asserts that `subset` isn't included in `superset` in the same order
+   * beginning with the first element in `superset`. Uses a deep equality
+   * check.
+   *
+   *     assert.notIncludeDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { f: 5 } ], 'not include deep ordered members');
+   *     assert.notIncludeDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { a: 1 } ], 'not include deep ordered members');
+   *     assert.notIncludeDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { c: 3 } ], 'not include deep ordered members');
+   *
+   * @name notIncludeDeepOrderedMembers
+   * @param {Array} superset
+   * @param {Array} subset
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.notIncludeDeepOrderedMembers = function (superset, subset, msg) {
+    new Assertion(superset, msg, assert.notIncludeDeepOrderedMembers, true)
+      .to.not.include.deep.ordered.members(subset);
+  }
+
+  /**
+   * ### .oneOf(inList, list, [message])
+   *
+   * Asserts that non-object, non-array value `inList` appears in the flat array `list`.
+   *
+   *     assert.oneOf(1, [ 2, 1 ], 'Not found in list');
+   *
+   * @name oneOf
+   * @param {*} inList
+   * @param {Array<*>} list
+   * @param {String} message
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.oneOf = function (inList, list, msg) {
+    new Assertion(inList, msg, assert.oneOf, true).to.be.oneOf(list);
+  }
+
+  /**
+   * ### .changes(function, object, property, [message])
+   *
+   * Asserts that a function changes the value of a property.
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 22 };
+   *     assert.changes(fn, obj, 'val');
+   *
+   * @name changes
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.changes = function (fn, obj, prop, msg) {
+    if (arguments.length === 3 && typeof obj === 'function') {
+      msg = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.changes, true).to.change(obj, prop);
+  }
+
+   /**
+   * ### .changesBy(function, object, property, delta, [message])
+   *
+   * Asserts that a function changes the value of a property by an amount (delta).
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val += 2 };
+   *     assert.changesBy(fn, obj, 'val', 2);
+   *
+   * @name changesBy
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.changesBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.changesBy, true)
+      .to.change(obj, prop).by(delta);
+  }
+
+   /**
+   * ### .doesNotChange(function, object, property, [message])
+   *
+   * Asserts that a function does not change the value of a property.
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { console.log('foo'); };
+   *     assert.doesNotChange(fn, obj, 'val');
+   *
+   * @name doesNotChange
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotChange = function (fn, obj, prop, msg) {
+    if (arguments.length === 3 && typeof obj === 'function') {
+      msg = prop;
+      prop = null;
+    }
+
+    return new Assertion(fn, msg, assert.doesNotChange, true)
+      .to.not.change(obj, prop);
+  }
+
+  /**
+   * ### .changesButNotBy(function, object, property, delta, [message])
+   *
+   * Asserts that a function does not change the value of a property or of a function's return value by an amount (delta)
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val += 10 };
+   *     assert.changesButNotBy(fn, obj, 'val', 5);
+   *
+   * @name changesButNotBy
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.changesButNotBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.changesButNotBy, true)
+      .to.change(obj, prop).but.not.by(delta);
+  }
+
+  /**
+   * ### .increases(function, object, property, [message])
+   *
+   * Asserts that a function increases a numeric object property.
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 13 };
+   *     assert.increases(fn, obj, 'val');
+   *
+   * @name increases
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.increases = function (fn, obj, prop, msg) {
+    if (arguments.length === 3 && typeof obj === 'function') {
+      msg = prop;
+      prop = null;
+    }
+
+    return new Assertion(fn, msg, assert.increases, true)
+      .to.increase(obj, prop);
+  }
+
+  /**
+   * ### .increasesBy(function, object, property, delta, [message])
+   *
+   * Asserts that a function increases a numeric object property or a function's return value by an amount (delta).
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val += 10 };
+   *     assert.increasesBy(fn, obj, 'val', 10);
+   *
+   * @name increasesBy
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.increasesBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.increasesBy, true)
+      .to.increase(obj, prop).by(delta);
+  }
+
+  /**
+   * ### .doesNotIncrease(function, object, property, [message])
+   *
+   * Asserts that a function does not increase a numeric object property.
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 8 };
+   *     assert.doesNotIncrease(fn, obj, 'val');
+   *
+   * @name doesNotIncrease
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotIncrease = function (fn, obj, prop, msg) {
+    if (arguments.length === 3 && typeof obj === 'function') {
+      msg = prop;
+      prop = null;
+    }
+
+    return new Assertion(fn, msg, assert.doesNotIncrease, true)
+      .to.not.increase(obj, prop);
+  }
+
+  /**
+   * ### .increasesButNotBy(function, object, property, [message])
+   *
+   * Asserts that a function does not increase a numeric object property or function's return value by an amount (delta).
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 15 };
+   *     assert.increasesButNotBy(fn, obj, 'val', 10);
+   *
+   * @name increasesButNotBy
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.increasesButNotBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.increasesButNotBy, true)
+      .to.increase(obj, prop).but.not.by(delta);
+  }
+
+  /**
+   * ### .decreases(function, object, property, [message])
+   *
+   * Asserts that a function decreases a numeric object property.
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 5 };
+   *     assert.decreases(fn, obj, 'val');
+   *
+   * @name decreases
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.decreases = function (fn, obj, prop, msg) {
+    if (arguments.length === 3 && typeof obj === 'function') {
+      msg = prop;
+      prop = null;
+    }
+
+    return new Assertion(fn, msg, assert.decreases, true)
+      .to.decrease(obj, prop);
+  }
+
+  /**
+   * ### .decreasesBy(function, object, property, delta, [message])
+   *
+   * Asserts that a function decreases a numeric object property or a function's return value by an amount (delta)
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val -= 5 };
+   *     assert.decreasesBy(fn, obj, 'val', 5);
+   *
+   * @name decreasesBy
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.decreasesBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.decreasesBy, true)
+      .to.decrease(obj, prop).by(delta);
+  }
+
+  /**
+   * ### .doesNotDecrease(function, object, property, [message])
+   *
+   * Asserts that a function does not decreases a numeric object property.
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 15 };
+   *     assert.doesNotDecrease(fn, obj, 'val');
+   *
+   * @name doesNotDecrease
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotDecrease = function (fn, obj, prop, msg) {
+    if (arguments.length === 3 && typeof obj === 'function') {
+      msg = prop;
+      prop = null;
+    }
+
+    return new Assertion(fn, msg, assert.doesNotDecrease, true)
+      .to.not.decrease(obj, prop);
+  }
+
+  /**
+   * ### .doesNotDecreaseBy(function, object, property, delta, [message])
+   *
+   * Asserts that a function does not decreases a numeric object property or a function's return value by an amount (delta)
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 5 };
+   *     assert.doesNotDecreaseBy(fn, obj, 'val', 1);
+   *
+   * @name doesNotDecrease
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.doesNotDecreaseBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    return new Assertion(fn, msg, assert.doesNotDecreaseBy, true)
+      .to.not.decrease(obj, prop).by(delta);
+  }
+
+  /**
+   * ### .decreasesButNotBy(function, object, property, delta, [message])
+   *
+   * Asserts that a function does not decreases a numeric object property or a function's return value by an amount (delta)
+   *
+   *     var obj = { val: 10 };
+   *     var fn = function() { obj.val = 5 };
+   *     assert.decreasesButNotBy(fn, obj, 'val', 1);
+   *
+   * @name decreasesButNotBy
+   * @param {Function} modifier function
+   * @param {Object} object or getter function
+   * @param {String} property name _optional_
+   * @param {Number} change amount (delta)
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.decreasesButNotBy = function (fn, obj, prop, delta, msg) {
+    if (arguments.length === 4 && typeof obj === 'function') {
+      var tmpMsg = delta;
+      delta = prop;
+      msg = tmpMsg;
+    } else if (arguments.length === 3) {
+      delta = prop;
+      prop = null;
+    }
+
+    new Assertion(fn, msg, assert.decreasesButNotBy, true)
+      .to.decrease(obj, prop).but.not.by(delta);
+  }
+
+  /*!
+   * ### .ifError(object)
+   *
+   * Asserts if value is not a false value, and throws if it is a true value.
+   * This is added to allow for chai to be a drop-in replacement for Node's
+   * assert class.
+   *
+   *     var err = new Error('I am a custom error');
+   *     assert.ifError(err); // Rethrows err!
+   *
+   * @name ifError
+   * @param {Object} object
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.ifError = function (val) {
+    if (val) {
+      throw(val);
+    }
+  };
+
+  /**
+   * ### .isExtensible(object)
+   *
+   * Asserts that `object` is extensible (can have new properties added to it).
+   *
+   *     assert.isExtensible({});
+   *
+   * @name isExtensible
+   * @alias extensible
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isExtensible = function (obj, msg) {
+    new Assertion(obj, msg, assert.isExtensible, true).to.be.extensible;
+  };
+
+  /**
+   * ### .isNotExtensible(object)
+   *
+   * Asserts that `object` is _not_ extensible.
+   *
+   *     var nonExtensibleObject = Object.preventExtensions({});
+   *     var sealedObject = Object.seal({});
+   *     var frozenObject = Object.freeze({});
+   *
+   *     assert.isNotExtensible(nonExtensibleObject);
+   *     assert.isNotExtensible(sealedObject);
+   *     assert.isNotExtensible(frozenObject);
+   *
+   * @name isNotExtensible
+   * @alias notExtensible
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotExtensible = function (obj, msg) {
+    new Assertion(obj, msg, assert.isNotExtensible, true).to.not.be.extensible;
+  };
+
+  /**
+   * ### .isSealed(object)
+   *
+   * Asserts that `object` is sealed (cannot have new properties added to it
+   * and its existing properties cannot be removed).
+   *
+   *     var sealedObject = Object.seal({});
+   *     var frozenObject = Object.seal({});
+   *
+   *     assert.isSealed(sealedObject);
+   *     assert.isSealed(frozenObject);
+   *
+   * @name isSealed
+   * @alias sealed
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isSealed = function (obj, msg) {
+    new Assertion(obj, msg, assert.isSealed, true).to.be.sealed;
+  };
+
+  /**
+   * ### .isNotSealed(object)
+   *
+   * Asserts that `object` is _not_ sealed.
+   *
+   *     assert.isNotSealed({});
+   *
+   * @name isNotSealed
+   * @alias notSealed
+   * @param {Object} object
+   * @param {String} message _optional_
+   * @namespace Assert
    * @api public
    */
 
   assert.isNotSealed = function (obj, msg) {
-    new Assertion(obj, msg).to.not.be.sealed;
+    new Assertion(obj, msg, assert.isNotSealed, true).to.not.be.sealed;
   };
 
   /**
@@ -3753,7 +7183,7 @@ module.exports = function (chai, util) {
    */
 
   assert.isFrozen = function (obj, msg) {
-    new Assertion(obj, msg).to.be.frozen;
+    new Assertion(obj, msg, assert.isFrozen, true).to.be.frozen;
   };
 
   /**
@@ -3772,7 +7202,59 @@ module.exports = function (chai, util) {
    */
 
   assert.isNotFrozen = function (obj, msg) {
-    new Assertion(obj, msg).to.not.be.frozen;
+    new Assertion(obj, msg, assert.isNotFrozen, true).to.not.be.frozen;
+  };
+
+  /**
+   * ### .isEmpty(target)
+   *
+   * Asserts that the target does not contain any values.
+   * For arrays and strings, it checks the `length` property.
+   * For `Map` and `Set` instances, it checks the `size` property.
+   * For non-function objects, it gets the count of own
+   * enumerable string keys.
+   *
+   *     assert.isEmpty([]);
+   *     assert.isEmpty('');
+   *     assert.isEmpty(new Map);
+   *     assert.isEmpty({});
+   *
+   * @name isEmpty
+   * @alias empty
+   * @param {Object|Array|String|Map|Set} target
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isEmpty = function(val, msg) {
+    new Assertion(val, msg, assert.isEmpty, true).to.be.empty;
+  };
+
+  /**
+   * ### .isNotEmpty(target)
+   *
+   * Asserts that the target contains values.
+   * For arrays and strings, it checks the `length` property.
+   * For `Map` and `Set` instances, it checks the `size` property.
+   * For non-function objects, it gets the count of own
+   * enumerable string keys.
+   *
+   *     assert.isNotEmpty([1, 2]);
+   *     assert.isNotEmpty('34');
+   *     assert.isNotEmpty(new Set([5, 6]));
+   *     assert.isNotEmpty({ key: 7 });
+   *
+   * @name isNotEmpty
+   * @alias notEmpty
+   * @param {Object|Array|String|Map|Set} target
+   * @param {String} message _optional_
+   * @namespace Assert
+   * @api public
+   */
+
+  assert.isNotEmpty = function(val, msg) {
+    new Assertion(val, msg, assert.isNotEmpty, true).to.not.be.empty;
   };
 
   /*!
@@ -3792,7 +7274,9 @@ module.exports = function (chai, util) {
   ('isSealed', 'sealed')
   ('isNotSealed', 'notSealed')
   ('isFrozen', 'frozen')
-  ('isNotFrozen', 'notFrozen');
+  ('isNotFrozen', 'notFrozen')
+  ('isEmpty', 'empty')
+  ('isNotEmpty', 'notEmpty');
 };
 
 },{}],7:[function(require,module,exports){
@@ -3808,20 +7292,33 @@ module.exports = function (chai, util) {
   };
 
   /**
+   * ### .fail([message])
    * ### .fail(actual, expected, [message], [operator])
    *
    * Throw a failure.
    *
+   *     expect.fail();
+   *     expect.fail("custom error message");
+   *     expect.fail(1, 2);
+   *     expect.fail(1, 2, "custom error message");
+   *     expect.fail(1, 2, "custom error message", ">");
+   *     expect.fail(1, 2, undefined, ">");
+   *
    * @name fail
    * @param {Mixed} actual
    * @param {Mixed} expected
    * @param {String} message
    * @param {String} operator
-   * @namespace Expect
+   * @namespace BDD
    * @api public
    */
 
   chai.expect.fail = function (actual, expected, message, operator) {
+    if (arguments.length < 2) {
+        message = actual;
+        actual = undefined;
+    }
+
     message = message || 'expect.fail()';
     throw new chai.AssertionError(message, {
         actual: actual
@@ -3844,7 +7341,10 @@ module.exports = function (chai, util) {
   function loadShould () {
     // explicitly define this method as function as to have it's name to include as `ssfi`
     function shouldGetter() {
-      if (this instanceof String || this instanceof Number || this instanceof Boolean ) {
+      if (this instanceof String
+          || this instanceof Number
+          || this instanceof Boolean
+          || typeof Symbol === 'function' && this instanceof Symbol) {
         return new Assertion(this.valueOf(), null, shouldGetter);
       }
       return new Assertion(this, null, shouldGetter);
@@ -3873,20 +7373,34 @@ module.exports = function (chai, util) {
     var should = {};
 
     /**
+     * ### .fail([message])
      * ### .fail(actual, expected, [message], [operator])
      *
      * Throw a failure.
      *
+     *     should.fail();
+     *     should.fail("custom error message");
+     *     should.fail(1, 2);
+     *     should.fail(1, 2, "custom error message");
+     *     should.fail(1, 2, "custom error message", ">");
+     *     should.fail(1, 2, undefined, ">");
+     *
+     *
      * @name fail
      * @param {Mixed} actual
      * @param {Mixed} expected
      * @param {String} message
      * @param {String} operator
-     * @namespace Should
+     * @namespace BDD
      * @api public
      */
 
     should.fail = function (actual, expected, message, operator) {
+      if (arguments.length < 2) {
+          message = actual;
+          actual = undefined;
+      }
+
       message = message || 'should.fail()';
       throw new chai.AssertionError(message, {
           actual: actual
@@ -4045,28 +7559,41 @@ module.exports = function (chai, util) {
  * Module dependencies
  */
 
-var transferFlags = require('./transferFlags');
+var addLengthGuard = require('./addLengthGuard');
+var chai = require('../../chai');
 var flag = require('./flag');
-var config = require('../config');
+var proxify = require('./proxify');
+var transferFlags = require('./transferFlags');
 
 /*!
  * Module variables
  */
 
-// Check whether `__proto__` is supported
-var hasProtoSupport = '__proto__' in Object;
+// Check whether `Object.setPrototypeOf` is supported
+var canSetPrototype = typeof Object.setPrototypeOf === 'function';
+
+// Without `Object.setPrototypeOf` support, this module will need to add properties to a function.
+// However, some of functions' own props are not configurable and should be skipped.
+var testFn = function() {};
+var excludeNames = Object.getOwnPropertyNames(testFn).filter(function(name) {
+  var propDesc = Object.getOwnPropertyDescriptor(testFn, name);
 
-// Without `__proto__` support, this module will need to add properties to a function.
-// However, some Function.prototype methods cannot be overwritten,
-// and there seems no easy cross-platform way to detect them (@see chaijs/chai/issues/69).
-var excludeNames = /^(?:length|name|arguments|caller)$/;
+  // Note: PhantomJS 1.x includes `callee` as one of `testFn`'s own properties,
+  // but then returns `undefined` as the property descriptor for `callee`. As a
+  // workaround, we perform an otherwise unnecessary type-check for `propDesc`,
+  // and then filter it out if it's not an object as it should be.
+  if (typeof propDesc !== 'object')
+    return true;
+
+  return !propDesc.configurable;
+});
 
 // Cache `Function` properties
 var call  = Function.prototype.call,
     apply = Function.prototype.apply;
 
 /**
- * ### addChainableMethod (ctx, name, method, chainingBehavior)
+ * ### .addChainableMethod(ctx, name, method, chainingBehavior)
  *
  * Adds a method to an object, such that the method can also be chained.
  *
@@ -4094,7 +7621,7 @@ var call  = Function.prototype.call,
  * @api public
  */
 
-module.exports = function (ctx, name, method, chainingBehavior) {
+module.exports = function addChainableMethod(ctx, name, method, chainingBehavior) {
   if (typeof chainingBehavior !== 'function') {
     chainingBehavior = function () { };
   }
@@ -4111,54 +7638,147 @@ module.exports = function (ctx, name, method, chainingBehavior) {
   ctx.__methods[name] = chainableBehavior;
 
   Object.defineProperty(ctx, name,
-    { get: function () {
+    { get: function chainableMethodGetter() {
         chainableBehavior.chainingBehavior.call(this);
 
-        var assert = function assert() {
-          var old_ssfi = flag(this, 'ssfi');
-          if (old_ssfi && config.includeStack === false)
-            flag(this, 'ssfi', assert);
+        var chainableMethodWrapper = function () {
+          // Setting the `ssfi` flag to `chainableMethodWrapper` causes this
+          // function to be the starting point for removing implementation
+          // frames from the stack trace of a failed assertion.
+          //
+          // However, we only want to use this function as the starting point if
+          // the `lockSsfi` flag isn't set.
+          //
+          // If the `lockSsfi` flag is set, then this assertion is being
+          // invoked from inside of another assertion. In this case, the `ssfi`
+          // flag has already been set by the outer assertion.
+          //
+          // Note that overwriting a chainable method merely replaces the saved
+          // methods in `ctx.__methods` instead of completely replacing the
+          // overwritten assertion. Therefore, an overwriting assertion won't
+          // set the `ssfi` or `lockSsfi` flags.
+          if (!flag(this, 'lockSsfi')) {
+            flag(this, 'ssfi', chainableMethodWrapper);
+          }
+
           var result = chainableBehavior.method.apply(this, arguments);
-          return result === undefined ? this : result;
+          if (result !== undefined) {
+            return result;
+          }
+
+          var newAssertion = new chai.Assertion();
+          transferFlags(this, newAssertion);
+          return newAssertion;
         };
 
-        // Use `__proto__` if available
-        if (hasProtoSupport) {
+        addLengthGuard(chainableMethodWrapper, name, true);
+
+        // Use `Object.setPrototypeOf` if available
+        if (canSetPrototype) {
           // Inherit all properties from the object by replacing the `Function` prototype
-          var prototype = assert.__proto__ = Object.create(this);
+          var prototype = Object.create(this);
           // Restore the `call` and `apply` methods from `Function`
           prototype.call = call;
           prototype.apply = apply;
+          Object.setPrototypeOf(chainableMethodWrapper, prototype);
         }
         // Otherwise, redefine all properties (slow!)
         else {
           var asserterNames = Object.getOwnPropertyNames(ctx);
           asserterNames.forEach(function (asserterName) {
-            if (!excludeNames.test(asserterName)) {
-              var pd = Object.getOwnPropertyDescriptor(ctx, asserterName);
-              Object.defineProperty(assert, asserterName, pd);
+            if (excludeNames.indexOf(asserterName) !== -1) {
+              return;
             }
+
+            var pd = Object.getOwnPropertyDescriptor(ctx, asserterName);
+            Object.defineProperty(chainableMethodWrapper, asserterName, pd);
           });
         }
 
-        transferFlags(this, assert);
-        return assert;
+        transferFlags(this, chainableMethodWrapper);
+        return proxify(chainableMethodWrapper);
       }
     , configurable: true
   });
 };
 
-},{"../config":4,"./flag":13,"./transferFlags":29}],10:[function(require,module,exports){
+},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":30,"./transferFlags":32}],10:[function(require,module,exports){
+var fnLengthDesc = Object.getOwnPropertyDescriptor(function () {}, 'length');
+
+/*!
+ * Chai - addLengthGuard utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### .addLengthGuard(fn, assertionName, isChainable)
+ *
+ * Define `length` as a getter on the given uninvoked method assertion. The
+ * getter acts as a guard against chaining `length` directly off of an uninvoked
+ * method assertion, which is a problem because it references `function`'s
+ * built-in `length` property instead of Chai's `length` assertion. When the
+ * getter catches the user making this mistake, it throws an error with a
+ * helpful message.
+ *
+ * There are two ways in which this mistake can be made. The first way is by
+ * chaining the `length` assertion directly off of an uninvoked chainable
+ * method. In this case, Chai suggests that the user use `lengthOf` instead. The
+ * second way is by chaining the `length` assertion directly off of an uninvoked
+ * non-chainable method. Non-chainable methods must be invoked prior to
+ * chaining. In this case, Chai suggests that the user consult the docs for the
+ * given assertion.
+ *
+ * If the `length` property of functions is unconfigurable, then return `fn`
+ * without modification.
+ *
+ * Note that in ES6, the function's `length` property is configurable, so once
+ * support for legacy environments is dropped, Chai's `length` property can
+ * replace the built-in function's `length` property, and this length guard will
+ * no longer be necessary. In the mean time, maintaining consistency across all
+ * environments is the priority.
+ *
+ * @param {Function} fn
+ * @param {String} assertionName
+ * @param {Boolean} isChainable
+ * @namespace Utils
+ * @name addLengthGuard
+ */
+
+module.exports = function addLengthGuard (fn, assertionName, isChainable) {
+  if (!fnLengthDesc.configurable) return fn;
+
+  Object.defineProperty(fn, 'length', {
+    get: function () {
+      if (isChainable) {
+        throw Error('Invalid Chai property: ' + assertionName + '.length. Due' +
+          ' to a compatibility issue, "length" cannot directly follow "' +
+          assertionName + '". Use "' + assertionName + '.lengthOf" instead.');
+      }
+
+      throw Error('Invalid Chai property: ' + assertionName + '.length. See' +
+        ' docs for proper usage of "' + assertionName + '".');
+    }
+  });
+
+  return fn;
+};
+
+},{}],11:[function(require,module,exports){
 /*!
  * Chai - addMethod utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
-var config = require('../config');
+var addLengthGuard = require('./addLengthGuard');
+var chai = require('../../chai');
+var flag = require('./flag');
+var proxify = require('./proxify');
+var transferFlags = require('./transferFlags');
 
 /**
- * ### .addMethod (ctx, name, method)
+ * ### .addMethod(ctx, name, method)
  *
  * Adds a method to the prototype of an object.
  *
@@ -4182,30 +7802,52 @@ var config = require('../config');
  * @name addMethod
  * @api public
  */
-var flag = require('./flag');
 
-module.exports = function (ctx, name, method) {
-  ctx[name] = function () {
-    var old_ssfi = flag(this, 'ssfi');
-    if (old_ssfi && config.includeStack === false)
-      flag(this, 'ssfi', ctx[name]);
+module.exports = function addMethod(ctx, name, method) {
+  var methodWrapper = function () {
+    // Setting the `ssfi` flag to `methodWrapper` causes this function to be the
+    // starting point for removing implementation frames from the stack trace of
+    // a failed assertion.
+    //
+    // However, we only want to use this function as the starting point if the
+    // `lockSsfi` flag isn't set.
+    //
+    // If the `lockSsfi` flag is set, then either this assertion has been
+    // overwritten by another assertion, or this assertion is being invoked from
+    // inside of another assertion. In the first case, the `ssfi` flag has
+    // already been set by the overwriting assertion. In the second case, the
+    // `ssfi` flag has already been set by the outer assertion.
+    if (!flag(this, 'lockSsfi')) {
+      flag(this, 'ssfi', methodWrapper);
+    }
+
     var result = method.apply(this, arguments);
-    return result === undefined ? this : result;
+    if (result !== undefined)
+      return result;
+
+    var newAssertion = new chai.Assertion();
+    transferFlags(this, newAssertion);
+    return newAssertion;
   };
+
+  addLengthGuard(methodWrapper, name, false);
+  ctx[name] = proxify(methodWrapper, name);
 };
 
-},{"../config":4,"./flag":13}],11:[function(require,module,exports){
+},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":30,"./transferFlags":32}],12:[function(require,module,exports){
 /*!
  * Chai - addProperty utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
-var config = require('../config');
+var chai = require('../../chai');
 var flag = require('./flag');
+var isProxyEnabled = require('./isProxyEnabled');
+var transferFlags = require('./transferFlags');
 
 /**
- * ### addProperty (ctx, name, getter)
+ * ### .addProperty(ctx, name, getter)
  *
  * Adds a property to the prototype of an object.
  *
@@ -4230,21 +7872,76 @@ var flag = require('./flag');
  * @api public
  */
 
-module.exports = function (ctx, name, getter) {
-  Object.defineProperty(ctx, name,
-    { get: function addProperty() {
-        var old_ssfi = flag(this, 'ssfi');
-        if (old_ssfi && config.includeStack === false)
-          flag(this, 'ssfi', addProperty);
-
-        var result = getter.call(this);
-        return result === undefined ? this : result;
-      }
-    , configurable: true
-  });
+module.exports = function addProperty(ctx, name, getter) {
+  getter = getter === undefined ? function () {} : getter;
+
+  Object.defineProperty(ctx, name,
+    { get: function propertyGetter() {
+        // Setting the `ssfi` flag to `propertyGetter` causes this function to
+        // be the starting point for removing implementation frames from the
+        // stack trace of a failed assertion.
+        //
+        // However, we only want to use this function as the starting point if
+        // the `lockSsfi` flag isn't set and proxy protection is disabled.
+        //
+        // If the `lockSsfi` flag is set, then either this assertion has been
+        // overwritten by another assertion, or this assertion is being invoked
+        // from inside of another assertion. In the first case, the `ssfi` flag
+        // has already been set by the overwriting assertion. In the second
+        // case, the `ssfi` flag has already been set by the outer assertion.
+        //
+        // If proxy protection is enabled, then the `ssfi` flag has already been
+        // set by the proxy getter.
+        if (!isProxyEnabled() && !flag(this, 'lockSsfi')) {
+          flag(this, 'ssfi', propertyGetter);
+        }
+
+        var result = getter.call(this);
+        if (result !== undefined)
+          return result;
+
+        var newAssertion = new chai.Assertion();
+        transferFlags(this, newAssertion);
+        return newAssertion;
+      }
+    , configurable: true
+  });
+};
+
+},{"../../chai":2,"./flag":15,"./isProxyEnabled":25,"./transferFlags":32}],13:[function(require,module,exports){
+/*!
+ * Chai - compareByInspect utility
+ * Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/*!
+ * Module dependencies
+ */
+
+var inspect = require('./inspect');
+
+/**
+ * ### .compareByInspect(mixed, mixed)
+ *
+ * To be used as a compareFunction with Array.prototype.sort. Compares elements
+ * using inspect instead of default behavior of using toString so that Symbols
+ * and objects with irregular/missing toString can still be sorted without a
+ * TypeError.
+ *
+ * @param {Mixed} first element to compare
+ * @param {Mixed} second element to compare
+ * @returns {Number} -1 if 'a' should come before 'b'; otherwise 1
+ * @name compareByInspect
+ * @namespace Utils
+ * @api public
+ */
+
+module.exports = function compareByInspect(a, b) {
+  return inspect(a) < inspect(b) ? -1 : 1;
 };
 
-},{"../config":4,"./flag":13}],12:[function(require,module,exports){
+},{"./inspect":23}],14:[function(require,module,exports){
 /*!
  * Chai - expectTypes utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -4252,7 +7949,7 @@ module.exports = function (ctx, name, getter) {
  */
 
 /**
- * ### expectTypes(obj, types)
+ * ### .expectTypes(obj, types)
  *
  * Ensures that the object being tested against is of a valid type.
  *
@@ -4269,26 +7966,35 @@ var AssertionError = require('assertion-error');
 var flag = require('./flag');
 var type = require('type-detect');
 
-module.exports = function (obj, types) {
-  var obj = flag(obj, 'object');
+module.exports = function expectTypes(obj, types) {
+  var flagMsg = flag(obj, 'message');
+  var ssfi = flag(obj, 'ssfi');
+
+  flagMsg = flagMsg ? flagMsg + ': ' : '';
+
+  obj = flag(obj, 'object');
   types = types.map(function (t) { return t.toLowerCase(); });
   types.sort();
 
-  // Transforms ['lorem', 'ipsum'] into 'a lirum, or an ipsum'
+  // Transforms ['lorem', 'ipsum'] into 'a lorem, or an ipsum'
   var str = types.map(function (t, index) {
     var art = ~[ 'a', 'e', 'i', 'o', 'u' ].indexOf(t.charAt(0)) ? 'an' : 'a';
     var or = types.length > 1 && index === types.length - 1 ? 'or ' : '';
     return or + art + ' ' + t;
   }).join(', ');
 
-  if (!types.some(function (expected) { return type(obj) === expected; })) {
+  var objType = type(obj).toLowerCase();
+
+  if (!types.some(function (expected) { return objType === expected; })) {
     throw new AssertionError(
-      'object tested must be ' + str + ', but ' + type(obj) + ' given'
+      flagMsg + 'object tested must be ' + str + ', but ' + objType + ' given',
+      undefined,
+      ssfi
     );
   }
 };
 
-},{"./flag":13,"assertion-error":30,"type-detect":35}],13:[function(require,module,exports){
+},{"./flag":15,"assertion-error":33,"type-detect":38}],15:[function(require,module,exports){
 /*!
  * Chai - flag utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -4296,7 +8002,7 @@ module.exports = function (obj, types) {
  */
 
 /**
- * ### flag(object, key, [value])
+ * ### .flag(object, key, [value])
  *
  * Get or set a flag value on an object. If a
  * value is provided it will be set, else it will
@@ -4314,7 +8020,7 @@ module.exports = function (obj, types) {
  * @api private
  */
 
-module.exports = function (obj, key, value) {
+module.exports = function flag(obj, key, value) {
   var flags = obj.__flags || (obj.__flags = Object.create(null));
   if (arguments.length === 3) {
     flags[key] = value;
@@ -4323,7 +8029,7 @@ module.exports = function (obj, key, value) {
   }
 };
 
-},{}],14:[function(require,module,exports){
+},{}],16:[function(require,module,exports){
 /*!
  * Chai - getActual utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -4331,9 +8037,9 @@ module.exports = function (obj, key, value) {
  */
 
 /**
- * # getActual(object, [actual])
+ * ### .getActual(object, [actual])
  *
- * Returns the `actual` value for an Assertion
+ * Returns the `actual` value for an Assertion.
  *
  * @param {Object} object (constructed Assertion)
  * @param {Arguments} chai.Assertion.prototype.assert arguments
@@ -4341,11 +8047,11 @@ module.exports = function (obj, key, value) {
  * @name getActual
  */
 
-module.exports = function (obj, args) {
+module.exports = function getActual(obj, args) {
   return args.length > 4 ? args[4] : obj._obj;
 };
 
-},{}],15:[function(require,module,exports){
+},{}],17:[function(require,module,exports){
 /*!
  * Chai - getEnumerableProperties utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -4373,7 +8079,7 @@ module.exports = function getEnumerableProperties(object) {
   return result;
 };
 
-},{}],16:[function(require,module,exports){
+},{}],18:[function(require,module,exports){
 /*!
  * Chai - message composition utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -4381,12 +8087,11 @@ module.exports = function getEnumerableProperties(object) {
  */
 
 /*!
- * Module dependancies
+ * Module dependencies
  */
 
 var flag = require('./flag')
   , getActual = require('./getActual')
-  , inspect = require('./inspect')
   , objDisplay = require('./objDisplay');
 
 /**
@@ -4408,7 +8113,7 @@ var flag = require('./flag')
  * @api public
  */
 
-module.exports = function (obj, args) {
+module.exports = function getMessage(obj, args) {
   var negate = flag(obj, 'negate')
     , val = flag(obj, 'object')
     , expected = args[3]
@@ -4426,189 +8131,67 @@ module.exports = function (obj, args) {
   return flagMsg ? flagMsg + ': ' + msg : msg;
 };
 
-},{"./flag":13,"./getActual":14,"./inspect":23,"./objDisplay":24}],17:[function(require,module,exports){
+},{"./flag":15,"./getActual":16,"./objDisplay":26}],19:[function(require,module,exports){
 /*!
- * Chai - getName utility
- * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * Chai - getOwnEnumerableProperties utility
+ * Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
-/**
- * # getName(func)
- *
- * Gets the name of a function, in a cross-browser way.
- *
- * @param {Function} a function (usually a constructor)
- * @namespace Utils
- * @name getName
- */
-
-module.exports = function (func) {
-  if (func.name) return func.name;
-
-  var match = /^\s?function ([^(]*)\(/.exec(func);
-  return match && match[1] ? match[1] : "";
-};
-
-},{}],18:[function(require,module,exports){
 /*!
- * Chai - getPathInfo utility
- * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
- * MIT Licensed
+ * Module dependencies
  */
 
-var hasProperty = require('./hasProperty');
+var getOwnEnumerablePropertySymbols = require('./getOwnEnumerablePropertySymbols');
 
 /**
- * ### .getPathInfo(path, object)
- *
- * This allows the retrieval of property info in an
- * object given a string path.
- *
- * The path info consists of an object with the
- * following properties:
+ * ### .getOwnEnumerableProperties(object)
  *
- * * parent - The parent object of the property referenced by `path`
- * * name - The name of the final property, a number if it was an array indexer
- * * value - The value of the property, if it exists, otherwise `undefined`
- * * exists - Whether the property exists or not
+ * This allows the retrieval of directly-owned enumerable property names and
+ * symbols of an object. This function is necessary because Object.keys only
+ * returns enumerable property names, not enumerable property symbols.
  *
- * @param {String} path
  * @param {Object} object
- * @returns {Object} info
+ * @returns {Array}
  * @namespace Utils
- * @name getPathInfo
+ * @name getOwnEnumerableProperties
  * @api public
  */
 
-module.exports = function getPathInfo(path, obj) {
-  var parsed = parsePath(path),
-      last = parsed[parsed.length - 1];
-
-  var info = {
-    parent: parsed.length > 1 ? _getPathValue(parsed, obj, parsed.length - 1) : obj,
-    name: last.p || last.i,
-    value: _getPathValue(parsed, obj)
-  };
-  info.exists = hasProperty(info.name, info.parent);
-
-  return info;
+module.exports = function getOwnEnumerableProperties(obj) {
+  return Object.keys(obj).concat(getOwnEnumerablePropertySymbols(obj));
 };
 
-
-/*!
- * ## parsePath(path)
- *
- * Helper function used to parse string object
- * paths. Use in conjunction with `_getPathValue`.
- *
- *      var parsed = parsePath('myobject.property.subprop');
- *
- * ### Paths:
- *
- * * Can be as near infinitely deep and nested
- * * Arrays are also valid using the formal `myobject.document[3].property`.
- * * Literal dots and brackets (not delimiter) must be backslash-escaped.
- *
- * @param {String} path
- * @returns {Object} parsed
- * @api private
- */
-
-function parsePath (path) {
-  var str = path.replace(/([^\\])\[/g, '$1.[')
-    , parts = str.match(/(\\\.|[^.]+?)+/g);
-  return parts.map(function (value) {
-    var re = /^\[(\d+)\]$/
-      , mArr = re.exec(value);
-    if (mArr) return { i: parseFloat(mArr[1]) };
-    else return { p: value.replace(/\\([.\[\]])/g, '$1') };
-  });
-}
-
-
-/*!
- * ## _getPathValue(parsed, obj)
- *
- * Helper companion function for `.parsePath` that returns
- * the value located at the parsed address.
- *
- *      var value = getPathValue(parsed, obj);
- *
- * @param {Object} parsed definition from `parsePath`.
- * @param {Object} object to search against
- * @param {Number} object to search against
- * @returns {Object|Undefined} value
- * @api private
- */
-
-function _getPathValue (parsed, obj, index) {
-  var tmp = obj
-    , res;
-
-  index = (index === undefined ? parsed.length : index);
-
-  for (var i = 0, l = index; i < l; i++) {
-    var part = parsed[i];
-    if (tmp) {
-      if ('undefined' !== typeof part.p)
-        tmp = tmp[part.p];
-      else if ('undefined' !== typeof part.i)
-        tmp = tmp[part.i];
-      if (i == (l - 1)) res = tmp;
-    } else {
-      res = undefined;
-    }
-  }
-  return res;
-}
-
-},{"./hasProperty":21}],19:[function(require,module,exports){
+},{"./getOwnEnumerablePropertySymbols":20}],20:[function(require,module,exports){
 /*!
- * Chai - getPathValue utility
- * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
- * @see https://github.com/logicalparadox/filtr
+ * Chai - getOwnEnumerablePropertySymbols utility
+ * Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
-var getPathInfo = require('./getPathInfo');
-
 /**
- * ### .getPathValue(path, object)
- *
- * This allows the retrieval of values in an
- * object given a string path.
+ * ### .getOwnEnumerablePropertySymbols(object)
  *
- *     var obj = {
- *         prop1: {
- *             arr: ['a', 'b', 'c']
- *           , str: 'Hello'
- *         }
- *       , prop2: {
- *             arr: [ { nested: 'Universe' } ]
- *           , str: 'Hello again!'
- *         }
- *     }
- *
- * The following would be the results.
+ * This allows the retrieval of directly-owned enumerable property symbols of an
+ * object. This function is necessary because Object.getOwnPropertySymbols
+ * returns both enumerable and non-enumerable property symbols.
  *
- *     getPathValue('prop1.str', obj); // Hello
- *     getPathValue('prop1.att[2]', obj); // b
- *     getPathValue('prop2.arr[0].nested', obj); // Universe
- *
- * @param {String} path
  * @param {Object} object
- * @returns {Object} value or `undefined`
+ * @returns {Array}
  * @namespace Utils
- * @name getPathValue
+ * @name getOwnEnumerablePropertySymbols
  * @api public
  */
-module.exports = function(path, obj) {
-  var info = getPathInfo(path, obj);
-  return info.value;
+
+module.exports = function getOwnEnumerablePropertySymbols(obj) {
+  if (typeof Object.getOwnPropertySymbols !== 'function') return [];
+
+  return Object.getOwnPropertySymbols(obj).filter(function (sym) {
+    return Object.getOwnPropertyDescriptor(obj, sym).enumerable;
+  });
 };
 
-},{"./getPathInfo":18}],20:[function(require,module,exports){
+},{}],21:[function(require,module,exports){
 /*!
  * Chai - getProperties utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -4646,73 +8229,7 @@ module.exports = function getProperties(object) {
   return result;
 };
 
-},{}],21:[function(require,module,exports){
-/*!
- * Chai - hasProperty utility
- * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
- * MIT Licensed
- */
-
-var type = require('type-detect');
-
-/**
- * ### .hasProperty(object, name)
- *
- * This allows checking whether an object has
- * named property or numeric array index.
- *
- * Basically does the same thing as the `in`
- * operator but works properly with natives
- * and null/undefined values.
- *
- *     var obj = {
- *         arr: ['a', 'b', 'c']
- *       , str: 'Hello'
- *     }
- *
- * The following would be the results.
- *
- *     hasProperty('str', obj);  // true
- *     hasProperty('constructor', obj);  // true
- *     hasProperty('bar', obj);  // false
- *
- *     hasProperty('length', obj.str); // true
- *     hasProperty(1, obj.str);  // true
- *     hasProperty(5, obj.str);  // false
- *
- *     hasProperty('length', obj.arr);  // true
- *     hasProperty(2, obj.arr);  // true
- *     hasProperty(3, obj.arr);  // false
- *
- * @param {Objuect} object
- * @param {String|Number} name
- * @returns {Boolean} whether it exists
- * @namespace Utils
- * @name getPathInfo
- * @api public
- */
-
-var literals = {
-    'number': Number
-  , 'string': String
-};
-
-module.exports = function hasProperty(name, obj) {
-  var ot = type(obj);
-
-  // Bad Object, obviously no props at all
-  if(ot === 'null' || ot === 'undefined')
-    return false;
-
-  // The `in` operator does not work with certain literals
-  // box these before the check
-  if(literals[ot] && typeof obj !== 'object')
-    obj = new literals[ot](obj);
-
-  return name in obj;
-};
-
-},{"type-detect":35}],22:[function(require,module,exports){
+},{}],22:[function(require,module,exports){
 /*!
  * chai
  * Copyright(c) 2011 Jake Luer <jake@alogicalparadox.com>
@@ -4720,10 +8237,10 @@ module.exports = function hasProperty(name, obj) {
  */
 
 /*!
- * Main exports
+ * Dependencies that are used for multiple exports are required here only once
  */
 
-var exports = module.exports = {};
+var pathval = require('pathval');
 
 /*!
  * test utility
@@ -4784,29 +8301,23 @@ exports.transferFlags = require('./transferFlags');
 
 exports.eql = require('deep-eql');
 
-/*!
- * Deep path value
- */
-
-exports.getPathValue = require('./getPathValue');
-
 /*!
  * Deep path info
  */
 
-exports.getPathInfo = require('./getPathInfo');
+exports.getPathInfo = pathval.getPathInfo;
 
 /*!
  * Check if a property exists
  */
 
-exports.hasProperty = require('./hasProperty');
+exports.hasProperty = pathval.hasProperty;
 
 /*!
  * Function name
  */
 
-exports.getName = require('./getName');
+exports.getName = require('get-func-name');
 
 /*!
  * add Property
@@ -4844,23 +8355,74 @@ exports.addChainableMethod = require('./addChainableMethod');
 
 exports.overwriteChainableMethod = require('./overwriteChainableMethod');
 
-},{"./addChainableMethod":9,"./addMethod":10,"./addProperty":11,"./expectTypes":12,"./flag":13,"./getActual":14,"./getMessage":16,"./getName":17,"./getPathInfo":18,"./getPathValue":19,"./hasProperty":21,"./inspect":23,"./objDisplay":24,"./overwriteChainableMethod":25,"./overwriteMethod":26,"./overwriteProperty":27,"./test":28,"./transferFlags":29,"deep-eql":31,"type-detect":35}],23:[function(require,module,exports){
+/*!
+ * Compare by inspect method
+ */
+
+exports.compareByInspect = require('./compareByInspect');
+
+/*!
+ * Get own enumerable property symbols method
+ */
+
+exports.getOwnEnumerablePropertySymbols = require('./getOwnEnumerablePropertySymbols');
+
+/*!
+ * Get own enumerable properties method
+ */
+
+exports.getOwnEnumerableProperties = require('./getOwnEnumerableProperties');
+
+/*!
+ * Checks error against a given set of criteria
+ */
+
+exports.checkError = require('check-error');
+
+/*!
+ * Proxify util
+ */
+
+exports.proxify = require('./proxify');
+
+/*!
+ * addLengthGuard util
+ */
+
+exports.addLengthGuard = require('./addLengthGuard');
+
+/*!
+ * isProxyEnabled helper
+ */
+
+exports.isProxyEnabled = require('./isProxyEnabled');
+
+/*!
+ * isNaN method
+ */
+
+exports.isNaN = require('./isNaN');
+
+},{"./addChainableMethod":9,"./addLengthGuard":10,"./addMethod":11,"./addProperty":12,"./compareByInspect":13,"./expectTypes":14,"./flag":15,"./getActual":16,"./getMessage":18,"./getOwnEnumerableProperties":19,"./getOwnEnumerablePropertySymbols":20,"./inspect":23,"./isNaN":24,"./isProxyEnabled":25,"./objDisplay":26,"./overwriteChainableMethod":27,"./overwriteMethod":28,"./overwriteProperty":29,"./proxify":30,"./test":31,"./transferFlags":32,"check-error":34,"deep-eql":35,"get-func-name":36,"pathval":37,"type-detect":38}],23:[function(require,module,exports){
 // This is (almost) directly from Node.js utils
 // https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/util.js
 
-var getName = require('./getName');
+var getName = require('get-func-name');
 var getProperties = require('./getProperties');
 var getEnumerableProperties = require('./getEnumerableProperties');
+var config = require('../config');
 
 module.exports = inspect;
 
 /**
- * Echos the value of a value. Trys to print the value out
+ * ### .inspect(obj, [showHidden], [depth], [colors])
+ *
+ * Echoes the value of a value. Tries to print the value out
  * in the best way possible given the different types.
  *
  * @param {Object} obj The object to print out.
  * @param {Boolean} showHidden Flag that shows hidden (not enumerable)
- *    properties of objects.
+ *    properties of objects. Default is false.
  * @param {Number} depth Depth in which to descend in object. Default is 2.
  * @param {Boolean} colors Flag to turn on ANSI escape codes to color the
  *    output. Default is false (no coloring).
@@ -4883,6 +8445,7 @@ var isDOMElement = function (object) {
   } else {
     return object &&
       typeof object === 'object' &&
+      'nodeType' in object &&
       object.nodeType === 1 &&
       typeof object.nodeName === 'string';
   }
@@ -4896,7 +8459,7 @@ function formatValue(ctx, value, recurseTimes) {
       value.inspect !== exports.inspect &&
       // Also filter out any prototype objects using the circular check.
       !(value.constructor && value.constructor.prototype === value)) {
-    var ret = value.inspect(recurseTimes);
+    var ret = value.inspect(recurseTimes, ctx);
     if (typeof ret !== 'string') {
       ret = formatValue(ctx, ret, recurseTimes);
     }
@@ -4929,7 +8492,7 @@ function formatValue(ctx, value, recurseTimes) {
           var container = document.createElementNS(ns, '_');
 
           container.appendChild(value.cloneNode(false));
-          html = container.innerHTML
+          var html = container.innerHTML
             .replace('><', '>' + value.innerHTML + '<');
           container.innerHTML = '';
           return html;
@@ -4946,7 +8509,9 @@ function formatValue(ctx, value, recurseTimes) {
   var visibleKeys = getEnumerableProperties(value);
   var keys = ctx.showHidden ? getProperties(value) : visibleKeys;
 
-  // Some type of object without properties can be shortcutted.
+  var name, nameSuffix;
+
+  // Some type of object without properties can be shortcut.
   // In IE, errors have a single `stack` property, or if they are vanilla `Error`,
   // a `stack` plus `description` property; ignore those for consistency.
   if (keys.length === 0 || (isError(value) && (
@@ -4954,8 +8519,8 @@ function formatValue(ctx, value, recurseTimes) {
       (keys.length === 2 && keys[0] === 'description' && keys[1] === 'stack')
      ))) {
     if (typeof value === 'function') {
-      var name = getName(value);
-      var nameSuffix = name ? ': ' + name : '';
+      name = getName(value);
+      nameSuffix = name ? ': ' + name : '';
       return ctx.stylize('[Function' + nameSuffix + ']', 'special');
     }
     if (isRegExp(value)) {
@@ -4969,7 +8534,15 @@ function formatValue(ctx, value, recurseTimes) {
     }
   }
 
-  var base = '', array = false, braces = ['{', '}'];
+  var base = ''
+    , array = false
+    , typedArray = false
+    , braces = ['{', '}'];
+
+  if (isTypedArray(value)) {
+    typedArray = true;
+    braces = ['[', ']'];
+  }
 
   // Make Array say that they are Array
   if (isArray(value)) {
@@ -4979,8 +8552,8 @@ function formatValue(ctx, value, recurseTimes) {
 
   // Make functions say that they are functions
   if (typeof value === 'function') {
-    var name = getName(value);
-    var nameSuffix = name ? ': ' + name : '';
+    name = getName(value);
+    nameSuffix = name ? ': ' + name : '';
     base = ' [Function' + nameSuffix + ']';
   }
 
@@ -5016,6 +8589,8 @@ function formatValue(ctx, value, recurseTimes) {
   var output;
   if (array) {
     output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+  } else if (typedArray) {
+    return formatTypedArray(value);
   } else {
     output = keys.map(function(key) {
       return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
@@ -5027,7 +8602,6 @@ function formatValue(ctx, value, recurseTimes) {
   return reduceToSingleString(output, base, braces);
 }
 
-
 function formatPrimitive(ctx, value) {
   switch (typeof value) {
     case 'undefined':
@@ -5047,6 +8621,9 @@ function formatPrimitive(ctx, value) {
 
     case 'boolean':
       return ctx.stylize('' + value, 'boolean');
+
+    case 'symbol':
+      return ctx.stylize(value.toString(), 'symbol');
   }
   // For some reason typeof null is "object", so special case here.
   if (value === null) {
@@ -5054,12 +8631,10 @@ function formatPrimitive(ctx, value) {
   }
 }
 
-
 function formatError(value) {
   return '[' + Error.prototype.toString.call(value) + ']';
 }
 
-
 function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
   var output = [];
   for (var i = 0, l = value.length; i < l; ++i) {
@@ -5070,6 +8645,7 @@ function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
       output.push('');
     }
   }
+
   keys.forEach(function(key) {
     if (!key.match(/^\d+$/)) {
       output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
@@ -5079,18 +8655,40 @@ function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
   return output;
 }
 
+function formatTypedArray(value) {
+  var str = '[ ';
+
+  for (var i = 0; i < value.length; ++i) {
+    if (str.length >= config.truncateThreshold - 7) {
+      str += '...';
+      break;
+    }
+    str += value[i] + ', ';
+  }
+  str += ' ]';
+
+  // Removing trailing `, ` if the array was not truncated
+  if (str.indexOf(',  ]') !== -1) {
+    str = str.replace(',  ]', ' ]');
+  }
+
+  return str;
+}
 
 function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
-  var name, str;
-  if (value.__lookupGetter__) {
-    if (value.__lookupGetter__(key)) {
-      if (value.__lookupSetter__(key)) {
+  var name;
+  var propDescriptor = Object.getOwnPropertyDescriptor(value, key);
+  var str;
+
+  if (propDescriptor) {
+    if (propDescriptor.get) {
+      if (propDescriptor.set) {
         str = ctx.stylize('[Getter/Setter]', 'special');
       } else {
         str = ctx.stylize('[Getter]', 'special');
       }
     } else {
-      if (value.__lookupSetter__(key)) {
+      if (propDescriptor.set) {
         str = ctx.stylize('[Setter]', 'special');
       }
     }
@@ -5139,12 +8737,8 @@ function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
   return name + ': ' + str;
 }
 
-
 function reduceToSingleString(output, base, braces) {
-  var numLinesEst = 0;
   var length = output.reduce(function(prev, cur) {
-    numLinesEst++;
-    if (cur.indexOf('\n') >= 0) numLinesEst++;
     return prev + cur.length + 1;
   }, 0);
 
@@ -5160,6 +8754,12 @@ function reduceToSingleString(output, base, braces) {
   return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
 }
 
+function isTypedArray(ar) {
+  // Unfortunately there's no way to check if an object is a TypedArray
+  // We have to check if it's one of these types
+  return (typeof ar === 'object' && /\w+Array]$/.test(objectToString(ar)));
+}
+
 function isArray(ar) {
   return Array.isArray(ar) ||
          (typeof ar === 'object' && objectToString(ar) === '[object Array]');
@@ -5181,7 +8781,61 @@ function objectToString(o) {
   return Object.prototype.toString.call(o);
 }
 
-},{"./getEnumerableProperties":15,"./getName":17,"./getProperties":20}],24:[function(require,module,exports){
+},{"../config":4,"./getEnumerableProperties":17,"./getProperties":21,"get-func-name":36}],24:[function(require,module,exports){
+/*!
+ * Chai - isNaN utility
+ * Copyright(c) 2012-2015 Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### .isNaN(value)
+ *
+ * Checks if the given value is NaN or not.
+ *
+ *     utils.isNaN(NaN); // true
+ *
+ * @param {Value} The value which has to be checked if it is NaN
+ * @name isNaN
+ * @api private
+ */
+
+function isNaN(value) {
+  // Refer http://www.ecma-international.org/ecma-262/6.0/#sec-isnan-number
+  // section's NOTE.
+  return value !== value;
+}
+
+// If ECMAScript 6's Number.isNaN is present, prefer that.
+module.exports = Number.isNaN || isNaN;
+
+},{}],25:[function(require,module,exports){
+var config = require('../config');
+
+/*!
+ * Chai - isProxyEnabled helper
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### .isProxyEnabled()
+ *
+ * Helper function to check if Chai's proxy protection feature is enabled. If
+ * proxies are unsupported or disabled via the user's Chai config, then return
+ * false. Otherwise, return true.
+ *
+ * @namespace Utils
+ * @name isProxyEnabled
+ */
+
+module.exports = function isProxyEnabled() {
+  return config.useProxy &&
+    typeof Proxy !== 'undefined' &&
+    typeof Reflect !== 'undefined';
+};
+
+},{"../config":4}],26:[function(require,module,exports){
 /*!
  * Chai - flag utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -5189,14 +8843,14 @@ function objectToString(o) {
  */
 
 /*!
- * Module dependancies
+ * Module dependencies
  */
 
 var inspect = require('./inspect');
 var config = require('../config');
 
 /**
- * ### .objDisplay (object)
+ * ### .objDisplay(object)
  *
  * Determines if an object or an array matches
  * criteria to be inspected in-line for error
@@ -5208,7 +8862,7 @@ var config = require('../config');
  * @api public
  */
 
-module.exports = function (obj) {
+module.exports = function objDisplay(obj) {
   var str = inspect(obj)
     , type = Object.prototype.toString.call(obj);
 
@@ -5233,22 +8887,25 @@ module.exports = function (obj) {
   }
 };
 
-},{"../config":4,"./inspect":23}],25:[function(require,module,exports){
+},{"../config":4,"./inspect":23}],27:[function(require,module,exports){
 /*!
  * Chai - overwriteChainableMethod utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
+var chai = require('../../chai');
+var transferFlags = require('./transferFlags');
+
 /**
- * ### overwriteChainableMethod (ctx, name, method, chainingBehavior)
+ * ### .overwriteChainableMethod(ctx, name, method, chainingBehavior)
  *
- * Overwites an already existing chainable method
+ * Overwrites an already existing chainable method
  * and provides access to the previous function or
  * property.  Must return functions to be used for
  * name.
  *
- *     utils.overwriteChainableMethod(chai.Assertion.prototype, 'length',
+ *     utils.overwriteChainableMethod(chai.Assertion.prototype, 'lengthOf',
  *       function (_super) {
  *       }
  *     , function (_super) {
@@ -5261,8 +8918,8 @@ module.exports = function (obj) {
  *
  * Then can be used as any other assertion.
  *
- *     expect(myFoo).to.have.length(3);
- *     expect(myFoo).to.have.length.above(3);
+ *     expect(myFoo).to.have.lengthOf(3);
+ *     expect(myFoo).to.have.lengthOf.above(3);
  *
  * @param {Object} ctx object whose method / property is to be overwritten
  * @param {String} name of method / property to overwrite
@@ -5273,33 +8930,51 @@ module.exports = function (obj) {
  * @api public
  */
 
-module.exports = function (ctx, name, method, chainingBehavior) {
+module.exports = function overwriteChainableMethod(ctx, name, method, chainingBehavior) {
   var chainableBehavior = ctx.__methods[name];
 
   var _chainingBehavior = chainableBehavior.chainingBehavior;
-  chainableBehavior.chainingBehavior = function () {
+  chainableBehavior.chainingBehavior = function overwritingChainableMethodGetter() {
     var result = chainingBehavior(_chainingBehavior).call(this);
-    return result === undefined ? this : result;
+    if (result !== undefined) {
+      return result;
+    }
+
+    var newAssertion = new chai.Assertion();
+    transferFlags(this, newAssertion);
+    return newAssertion;
   };
 
   var _method = chainableBehavior.method;
-  chainableBehavior.method = function () {
+  chainableBehavior.method = function overwritingChainableMethodWrapper() {
     var result = method(_method).apply(this, arguments);
-    return result === undefined ? this : result;
+    if (result !== undefined) {
+      return result;
+    }
+
+    var newAssertion = new chai.Assertion();
+    transferFlags(this, newAssertion);
+    return newAssertion;
   };
 };
 
-},{}],26:[function(require,module,exports){
+},{"../../chai":2,"./transferFlags":32}],28:[function(require,module,exports){
 /*!
  * Chai - overwriteMethod utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
+var addLengthGuard = require('./addLengthGuard');
+var chai = require('../../chai');
+var flag = require('./flag');
+var proxify = require('./proxify');
+var transferFlags = require('./transferFlags');
+
 /**
- * ### overwriteMethod (ctx, name, fn)
+ * ### .overwriteMethod(ctx, name, fn)
  *
- * Overwites an already existing method and provides
+ * Overwrites an already existing method and provides
  * access to previous function. Must return function
  * to be used for name.
  *
@@ -5330,30 +9005,69 @@ module.exports = function (ctx, name, method, chainingBehavior) {
  * @api public
  */
 
-module.exports = function (ctx, name, method) {
+module.exports = function overwriteMethod(ctx, name, method) {
   var _method = ctx[name]
-    , _super = function () { return this; };
+    , _super = function () {
+      throw new Error(name + ' is not a function');
+    };
 
   if (_method && 'function' === typeof _method)
     _super = _method;
 
-  ctx[name] = function () {
+  var overwritingMethodWrapper = function () {
+    // Setting the `ssfi` flag to `overwritingMethodWrapper` causes this
+    // function to be the starting point for removing implementation frames from
+    // the stack trace of a failed assertion.
+    //
+    // However, we only want to use this function as the starting point if the
+    // `lockSsfi` flag isn't set.
+    //
+    // If the `lockSsfi` flag is set, then either this assertion has been
+    // overwritten by another assertion, or this assertion is being invoked from
+    // inside of another assertion. In the first case, the `ssfi` flag has
+    // already been set by the overwriting assertion. In the second case, the
+    // `ssfi` flag has already been set by the outer assertion.
+    if (!flag(this, 'lockSsfi')) {
+      flag(this, 'ssfi', overwritingMethodWrapper);
+    }
+
+    // Setting the `lockSsfi` flag to `true` prevents the overwritten assertion
+    // from changing the `ssfi` flag. By this point, the `ssfi` flag is already
+    // set to the correct starting point for this assertion.
+    var origLockSsfi = flag(this, 'lockSsfi');
+    flag(this, 'lockSsfi', true);
     var result = method(_super).apply(this, arguments);
-    return result === undefined ? this : result;
+    flag(this, 'lockSsfi', origLockSsfi);
+
+    if (result !== undefined) {
+      return result;
+    }
+
+    var newAssertion = new chai.Assertion();
+    transferFlags(this, newAssertion);
+    return newAssertion;
   }
+
+  addLengthGuard(overwritingMethodWrapper, name, false);
+  ctx[name] = proxify(overwritingMethodWrapper, name);
 };
 
-},{}],27:[function(require,module,exports){
+},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":30,"./transferFlags":32}],29:[function(require,module,exports){
 /*!
  * Chai - overwriteProperty utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
+var chai = require('../../chai');
+var flag = require('./flag');
+var isProxyEnabled = require('./isProxyEnabled');
+var transferFlags = require('./transferFlags');
+
 /**
- * ### overwriteProperty (ctx, name, fn)
+ * ### .overwriteProperty(ctx, name, fn)
  *
- * Overwites an already existing property getter and provides
+ * Overwrites an already existing property getter and provides
  * access to previous value. Must return function to use as getter.
  *
  *     utils.overwriteProperty(chai.Assertion.prototype, 'ok', function (_super) {
@@ -5384,7 +9098,7 @@ module.exports = function (ctx, name, method) {
  * @api public
  */
 
-module.exports = function (ctx, name, getter) {
+module.exports = function overwriteProperty(ctx, name, getter) {
   var _get = Object.getOwnPropertyDescriptor(ctx, name)
     , _super = function () {};
 
@@ -5392,15 +9106,196 @@ module.exports = function (ctx, name, getter) {
     _super = _get.get
 
   Object.defineProperty(ctx, name,
-    { get: function () {
+    { get: function overwritingPropertyGetter() {
+        // Setting the `ssfi` flag to `overwritingPropertyGetter` causes this
+        // function to be the starting point for removing implementation frames
+        // from the stack trace of a failed assertion.
+        //
+        // However, we only want to use this function as the starting point if
+        // the `lockSsfi` flag isn't set and proxy protection is disabled.
+        //
+        // If the `lockSsfi` flag is set, then either this assertion has been
+        // overwritten by another assertion, or this assertion is being invoked
+        // from inside of another assertion. In the first case, the `ssfi` flag
+        // has already been set by the overwriting assertion. In the second
+        // case, the `ssfi` flag has already been set by the outer assertion.
+        //
+        // If proxy protection is enabled, then the `ssfi` flag has already been
+        // set by the proxy getter.
+        if (!isProxyEnabled() && !flag(this, 'lockSsfi')) {
+          flag(this, 'ssfi', overwritingPropertyGetter);
+        }
+
+        // Setting the `lockSsfi` flag to `true` prevents the overwritten
+        // assertion from changing the `ssfi` flag. By this point, the `ssfi`
+        // flag is already set to the correct starting point for this assertion.
+        var origLockSsfi = flag(this, 'lockSsfi');
+        flag(this, 'lockSsfi', true);
         var result = getter(_super).call(this);
-        return result === undefined ? this : result;
+        flag(this, 'lockSsfi', origLockSsfi);
+
+        if (result !== undefined) {
+          return result;
+        }
+
+        var newAssertion = new chai.Assertion();
+        transferFlags(this, newAssertion);
+        return newAssertion;
       }
     , configurable: true
   });
 };
 
-},{}],28:[function(require,module,exports){
+},{"../../chai":2,"./flag":15,"./isProxyEnabled":25,"./transferFlags":32}],30:[function(require,module,exports){
+var config = require('../config');
+var flag = require('./flag');
+var getProperties = require('./getProperties');
+var isProxyEnabled = require('./isProxyEnabled');
+
+/*!
+ * Chai - proxify utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+
+/**
+ * ### .proxify(object)
+ *
+ * Return a proxy of given object that throws an error when a non-existent
+ * property is read. By default, the root cause is assumed to be a misspelled
+ * property, and thus an attempt is made to offer a reasonable suggestion from
+ * the list of existing properties. However, if a nonChainableMethodName is
+ * provided, then the root cause is instead a failure to invoke a non-chainable
+ * method prior to reading the non-existent property.
+ *
+ * If proxies are unsupported or disabled via the user's Chai config, then
+ * return object without modification.
+ *
+ * @param {Object} obj
+ * @param {String} nonChainableMethodName
+ * @namespace Utils
+ * @name proxify
+ */
+
+var builtins = ['__flags', '__methods', '_obj', 'assert'];
+
+module.exports = function proxify(obj, nonChainableMethodName) {
+  if (!isProxyEnabled()) return obj;
+
+  return new Proxy(obj, {
+    get: function proxyGetter(target, property) {
+      // This check is here because we should not throw errors on Symbol properties
+      // such as `Symbol.toStringTag`.
+      // The values for which an error should be thrown can be configured using
+      // the `config.proxyExcludedKeys` setting.
+      if (typeof property === 'string' &&
+          config.proxyExcludedKeys.indexOf(property) === -1 &&
+          !Reflect.has(target, property)) {
+        // Special message for invalid property access of non-chainable methods.
+        if (nonChainableMethodName) {
+          throw Error('Invalid Chai property: ' + nonChainableMethodName + '.' +
+            property + '. See docs for proper usage of "' +
+            nonChainableMethodName + '".');
+        }
+
+        // If the property is reasonably close to an existing Chai property,
+        // suggest that property to the user. Only suggest properties with a
+        // distance less than 4.
+        var suggestion = null;
+        var suggestionDistance = 4;
+        getProperties(target).forEach(function(prop) {
+          if (
+            !Object.prototype.hasOwnProperty(prop) &&
+            builtins.indexOf(prop) === -1
+          ) {
+            var dist = stringDistanceCapped(
+              property,
+              prop,
+              suggestionDistance
+            );
+            if (dist < suggestionDistance) {
+              suggestion = prop;
+              suggestionDistance = dist;
+            }
+          }
+        });
+
+        if (suggestion !== null) {
+          throw Error('Invalid Chai property: ' + property +
+            '. Did you mean "' + suggestion + '"?');
+        } else {
+          throw Error('Invalid Chai property: ' + property);
+        }
+      }
+
+      // Use this proxy getter as the starting point for removing implementation
+      // frames from the stack trace of a failed assertion. For property
+      // assertions, this prevents the proxy getter from showing up in the stack
+      // trace since it's invoked before the property getter. For method and
+      // chainable method assertions, this flag will end up getting changed to
+      // the method wrapper, which is good since this frame will no longer be in
+      // the stack once the method is invoked. Note that Chai builtin assertion
+      // properties such as `__flags` are skipped since this is only meant to
+      // capture the starting point of an assertion. This step is also skipped
+      // if the `lockSsfi` flag is set, thus indicating that this assertion is
+      // being called from within another assertion. In that case, the `ssfi`
+      // flag is already set to the outer assertion's starting point.
+      if (builtins.indexOf(property) === -1 && !flag(target, 'lockSsfi')) {
+        flag(target, 'ssfi', proxyGetter);
+      }
+
+      return Reflect.get(target, property);
+    }
+  });
+};
+
+/**
+ * # stringDistanceCapped(strA, strB, cap)
+ * Return the Levenshtein distance between two strings, but no more than cap.
+ * @param {string} strA
+ * @param {string} strB
+ * @param {number} number
+ * @return {number} min(string distance between strA and strB, cap)
+ * @api private
+ */
+
+function stringDistanceCapped(strA, strB, cap) {
+  if (Math.abs(strA.length - strB.length) >= cap) {
+    return cap;
+  }
+
+  var memo = [];
+  // `memo` is a two-dimensional array containing distances.
+  // memo[i][j] is the distance between strA.slice(0, i) and
+  // strB.slice(0, j).
+  for (var i = 0; i <= strA.length; i++) {
+    memo[i] = Array(strB.length + 1).fill(0);
+    memo[i][0] = i;
+  }
+  for (var j = 0; j < strB.length; j++) {
+    memo[0][j] = j;
+  }
+
+  for (var i = 1; i <= strA.length; i++) {
+    var ch = strA.charCodeAt(i - 1);
+    for (var j = 1; j <= strB.length; j++) {
+      if (Math.abs(i - j) >= cap) {
+        memo[i][j] = cap;
+        continue;
+      }
+      memo[i][j] = Math.min(
+        memo[i - 1][j] + 1,
+        memo[i][j - 1] + 1,
+        memo[i - 1][j - 1] +
+          (ch === strB.charCodeAt(j - 1) ? 0 : 1)
+      );
+    }
+  }
+
+  return memo[strA.length][strB.length];
+}
+
+},{"../config":4,"./flag":15,"./getProperties":21,"./isProxyEnabled":25}],31:[function(require,module,exports){
 /*!
  * Chai - test utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -5408,13 +9303,13 @@ module.exports = function (ctx, name, getter) {
  */
 
 /*!
- * Module dependancies
+ * Module dependencies
  */
 
 var flag = require('./flag');
 
 /**
- * # test(object, expression)
+ * ### .test(object, expression)
  *
  * Test and object for expression.
  *
@@ -5424,13 +9319,13 @@ var flag = require('./flag');
  * @name test
  */
 
-module.exports = function (obj, args) {
+module.exports = function test(obj, args) {
   var negate = flag(obj, 'negate')
     , expr = args[0];
   return negate ? !expr : expr;
 };
 
-},{"./flag":13}],29:[function(require,module,exports){
+},{"./flag":15}],32:[function(require,module,exports){
 /*!
  * Chai - transferFlags utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -5438,18 +9333,18 @@ module.exports = function (obj, args) {
  */
 
 /**
- * ### transferFlags(assertion, object, includeAll = true)
+ * ### .transferFlags(assertion, object, includeAll = true)
  *
  * Transfer all the flags for `assertion` to `object`. If
  * `includeAll` is set to `false`, then the base Chai
- * assertion flags (namely `object`, `ssfi`, and `message`)
- * will not be transferred.
+ * assertion flags (namely `object`, `ssfi`, `lockSsfi`,
+ * and `message`) will not be transferred.
  *
  *
  *     var newAssertion = new Assertion();
  *     utils.transferFlags(assertion, newAssertion);
  *
- *     var anotherAsseriton = new Assertion(myObj);
+ *     var anotherAssertion = new Assertion(myObj);
  *     utils.transferFlags(assertion, anotherAssertion, false);
  *
  * @param {Assertion} assertion the assertion to transfer the flags from
@@ -5460,7 +9355,7 @@ module.exports = function (obj, args) {
  * @api private
  */
 
-module.exports = function (assertion, object, includeAll) {
+module.exports = function transferFlags(assertion, object, includeAll) {
   var flags = assertion.__flags || (assertion.__flags = Object.create(null));
 
   if (!object.__flags) {
@@ -5471,13 +9366,13 @@ module.exports = function (assertion, object, includeAll) {
 
   for (var flag in flags) {
     if (includeAll ||
-        (flag !== 'object' && flag !== 'ssfi' && flag != 'message')) {
+        (flag !== 'object' && flag !== 'ssfi' && flag !== 'lockSsfi' && flag != 'message')) {
       object.__flags[flag] = flags[flag];
     }
   }
 };
 
-},{}],30:[function(require,module,exports){
+},{}],33:[function(require,module,exports){
 /*!
  * assertion-error
  * Copyright(c) 2013 Jake Luer <jake@qualiancy.com>
@@ -5546,11 +9441,15 @@ function AssertionError (message, _props, ssf) {
   }
 
   // capture stack trace
-  ssf = ssf || arguments.callee;
-  if (ssf && Error.captureStackTrace) {
+  ssf = ssf || AssertionError;
+  if (Error.captureStackTrace) {
     Error.captureStackTrace(this, ssf);
   } else {
-    this.stack = new Error().stack;
+    try {
+      throw new Error();
+    } catch(e) {
+      this.stack = e.stack;
+    }
   }
 }
 
@@ -5591,552 +9490,1365 @@ AssertionError.prototype.toJSON = function (stack) {
   return props;
 };
 
-},{}],31:[function(require,module,exports){
-module.exports = require('./lib/eql');
+},{}],34:[function(require,module,exports){
+'use strict';
 
-},{"./lib/eql":32}],32:[function(require,module,exports){
-/*!
- * deep-eql
- * Copyright(c) 2013 Jake Luer <jake@alogicalparadox.com>
+/* !
+ * Chai - checkError utility
+ * Copyright(c) 2012-2016 Jake Luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
 
-/*!
- * Module dependencies
+/**
+ * ### .checkError
+ *
+ * Checks that an error conforms to a given set of criteria and/or retrieves information about it.
+ *
+ * @api public
  */
 
-var type = require('type-detect');
-
-/*!
- * Buffer.isBuffer browser shim
+/**
+ * ### .compatibleInstance(thrown, errorLike)
+ *
+ * Checks if two instances are compatible (strict equal).
+ * Returns false if errorLike is not an instance of Error, because instances
+ * can only be compatible if they're both error instances.
+ *
+ * @name compatibleInstance
+ * @param {Error} thrown error
+ * @param {Error|ErrorConstructor} errorLike object to compare against
+ * @namespace Utils
+ * @api public
  */
 
-var Buffer;
-try { Buffer = require('buffer').Buffer; }
-catch(ex) {
-  Buffer = {};
-  Buffer.isBuffer = function() { return false; }
+function compatibleInstance(thrown, errorLike) {
+  return errorLike instanceof Error && thrown === errorLike;
 }
 
-/*!
- * Primary Export
+/**
+ * ### .compatibleConstructor(thrown, errorLike)
+ *
+ * Checks if two constructors are compatible.
+ * This function can receive either an error constructor or
+ * an error instance as the `errorLike` argument.
+ * Constructors are compatible if they're the same or if one is
+ * an instance of another.
+ *
+ * @name compatibleConstructor
+ * @param {Error} thrown error
+ * @param {Error|ErrorConstructor} errorLike object to compare against
+ * @namespace Utils
+ * @api public
  */
 
-module.exports = deepEqual;
+function compatibleConstructor(thrown, errorLike) {
+  if (errorLike instanceof Error) {
+    // If `errorLike` is an instance of any error we compare their constructors
+    return thrown.constructor === errorLike.constructor || thrown instanceof errorLike.constructor;
+  } else if (errorLike.prototype instanceof Error || errorLike === Error) {
+    // If `errorLike` is a constructor that inherits from Error, we compare `thrown` to `errorLike` directly
+    return thrown.constructor === errorLike || thrown instanceof errorLike;
+  }
+
+  return false;
+}
 
 /**
- * Assert super-strict (egal) equality between
- * two objects of any type.
+ * ### .compatibleMessage(thrown, errMatcher)
  *
- * @param {Mixed} a
- * @param {Mixed} b
- * @param {Array} memoised (optional)
- * @return {Boolean} equal match
+ * Checks if an error's message is compatible with a matcher (String or RegExp).
+ * If the message contains the String or passes the RegExp test,
+ * it is considered compatible.
+ *
+ * @name compatibleMessage
+ * @param {Error} thrown error
+ * @param {String|RegExp} errMatcher to look for into the message
+ * @namespace Utils
+ * @api public
  */
 
-function deepEqual(a, b, m) {
-  if (sameValue(a, b)) {
-    return true;
-  } else if ('date' === type(a)) {
-    return dateEqual(a, b);
-  } else if ('regexp' === type(a)) {
-    return regexpEqual(a, b);
-  } else if (Buffer.isBuffer(a)) {
-    return bufferEqual(a, b);
-  } else if ('arguments' === type(a)) {
-    return argumentsEqual(a, b, m);
-  } else if (!typeEqual(a, b)) {
-    return false;
-  } else if (('object' !== type(a) && 'object' !== type(b))
-  && ('array' !== type(a) && 'array' !== type(b))) {
-    return sameValue(a, b);
-  } else {
-    return objectEqual(a, b, m);
+function compatibleMessage(thrown, errMatcher) {
+  var comparisonString = typeof thrown === 'string' ? thrown : thrown.message;
+  if (errMatcher instanceof RegExp) {
+    return errMatcher.test(comparisonString);
+  } else if (typeof errMatcher === 'string') {
+    return comparisonString.indexOf(errMatcher) !== -1; // eslint-disable-line no-magic-numbers
   }
+
+  return false;
 }
 
-/*!
- * Strict (egal) equality test. Ensures that NaN always
- * equals NaN and `-0` does not equal `+0`.
+/**
+ * ### .getFunctionName(constructorFn)
  *
- * @param {Mixed} a
- * @param {Mixed} b
- * @return {Boolean} equal match
+ * Returns the name of a function.
+ * This also includes a polyfill function if `constructorFn.name` is not defined.
+ *
+ * @name getFunctionName
+ * @param {Function} constructorFn
+ * @namespace Utils
+ * @api private
  */
 
-function sameValue(a, b) {
-  if (a === b) return a !== 0 || 1 / a === 1 / b;
-  return a !== a && b !== b;
+var functionNameMatch = /\s*function(?:\s|\s*\/\*[^(?:*\/)]+\*\/\s*)*([^\(\/]+)/;
+function getFunctionName(constructorFn) {
+  var name = '';
+  if (typeof constructorFn.name === 'undefined') {
+    // Here we run a polyfill if constructorFn.name is not defined
+    var match = String(constructorFn).match(functionNameMatch);
+    if (match) {
+      name = match[1];
+    }
+  } else {
+    name = constructorFn.name;
+  }
+
+  return name;
 }
 
-/*!
- * Compare the types of two given objects and
- * return if they are equal. Note that an Array
- * has a type of `array` (not `object`) and arguments
- * have a type of `arguments` (not `array`/`object`).
+/**
+ * ### .getConstructorName(errorLike)
  *
- * @param {Mixed} a
- * @param {Mixed} b
- * @return {Boolean} result
+ * Gets the constructor name for an Error instance or constructor itself.
+ *
+ * @name getConstructorName
+ * @param {Error|ErrorConstructor} errorLike
+ * @namespace Utils
+ * @api public
  */
 
-function typeEqual(a, b) {
-  return type(a) === type(b);
+function getConstructorName(errorLike) {
+  var constructorName = errorLike;
+  if (errorLike instanceof Error) {
+    constructorName = getFunctionName(errorLike.constructor);
+  } else if (typeof errorLike === 'function') {
+    // If `err` is not an instance of Error it is an error constructor itself or another function.
+    // If we've got a common function we get its name, otherwise we may need to create a new instance
+    // of the error just in case it's a poorly-constructed error. Please see chaijs/chai/issues/45 to know more.
+    constructorName = getFunctionName(errorLike).trim() ||
+        getFunctionName(new errorLike()); // eslint-disable-line new-cap
+  }
+
+  return constructorName;
 }
 
-/*!
- * Compare two Date objects by asserting that
- * the time values are equal using `saveValue`.
+/**
+ * ### .getMessage(errorLike)
  *
- * @param {Date} a
- * @param {Date} b
- * @return {Boolean} result
+ * Gets the error message from an error.
+ * If `err` is a String itself, we return it.
+ * If the error has no message, we return an empty string.
+ *
+ * @name getMessage
+ * @param {Error|String} errorLike
+ * @namespace Utils
+ * @api public
  */
 
-function dateEqual(a, b) {
-  if ('date' !== type(b)) return false;
-  return sameValue(a.getTime(), b.getTime());
+function getMessage(errorLike) {
+  var msg = '';
+  if (errorLike && errorLike.message) {
+    msg = errorLike.message;
+  } else if (typeof errorLike === 'string') {
+    msg = errorLike;
+  }
+
+  return msg;
 }
 
+module.exports = {
+  compatibleInstance: compatibleInstance,
+  compatibleConstructor: compatibleConstructor,
+  compatibleMessage: compatibleMessage,
+  getMessage: getMessage,
+  getConstructorName: getConstructorName,
+};
+
+},{}],35:[function(require,module,exports){
+'use strict';
+/* globals Symbol: false, Uint8Array: false, WeakMap: false */
 /*!
- * Compare two regular expressions by converting them
- * to string and checking for `sameValue`.
- *
- * @param {RegExp} a
- * @param {RegExp} b
- * @return {Boolean} result
+ * deep-eql
+ * Copyright(c) 2013 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
  */
 
-function regexpEqual(a, b) {
-  if ('regexp' !== type(b)) return false;
-  return sameValue(a.toString(), b.toString());
+var type = require('type-detect');
+function FakeMap() {
+  this._key = 'chai/deep-eql__' + Math.random() + Date.now();
 }
 
+FakeMap.prototype = {
+  get: function getMap(key) {
+    return key[this._key];
+  },
+  set: function setMap(key, value) {
+    if (Object.isExtensible(key)) {
+      Object.defineProperty(key, this._key, {
+        value: value,
+        configurable: true,
+      });
+    }
+  },
+};
+
+var MemoizeMap = typeof WeakMap === 'function' ? WeakMap : FakeMap;
 /*!
- * Assert deep equality of two `arguments` objects.
- * Unfortunately, these must be sliced to arrays
- * prior to test to ensure no bad behavior.
- *
- * @param {Arguments} a
- * @param {Arguments} b
- * @param {Array} memoize (optional)
- * @return {Boolean} result
- */
+ * Check to see if the MemoizeMap has recorded a result of the two operands
+ *
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @param {MemoizeMap} memoizeMap
+ * @returns {Boolean|null} result
+*/
+function memoizeCompare(leftHandOperand, rightHandOperand, memoizeMap) {
+  // Technically, WeakMap keys can *only* be objects, not primitives.
+  if (!memoizeMap || isPrimitive(leftHandOperand) || isPrimitive(rightHandOperand)) {
+    return null;
+  }
+  var leftHandMap = memoizeMap.get(leftHandOperand);
+  if (leftHandMap) {
+    var result = leftHandMap.get(rightHandOperand);
+    if (typeof result === 'boolean') {
+      return result;
+    }
+  }
+  return null;
+}
 
-function argumentsEqual(a, b, m) {
-  if ('arguments' !== type(b)) return false;
-  a = [].slice.call(a);
-  b = [].slice.call(b);
-  return deepEqual(a, b, m);
+/*!
+ * Set the result of the equality into the MemoizeMap
+ *
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @param {MemoizeMap} memoizeMap
+ * @param {Boolean} result
+*/
+function memoizeSet(leftHandOperand, rightHandOperand, memoizeMap, result) {
+  // Technically, WeakMap keys can *only* be objects, not primitives.
+  if (!memoizeMap || isPrimitive(leftHandOperand) || isPrimitive(rightHandOperand)) {
+    return;
+  }
+  var leftHandMap = memoizeMap.get(leftHandOperand);
+  if (leftHandMap) {
+    leftHandMap.set(rightHandOperand, result);
+  } else {
+    leftHandMap = new MemoizeMap();
+    leftHandMap.set(rightHandOperand, result);
+    memoizeMap.set(leftHandOperand, leftHandMap);
+  }
 }
 
 /*!
- * Get enumerable properties of a given object.
- *
- * @param {Object} a
- * @return {Array} property names
+ * Primary Export
  */
 
-function enumerable(a) {
-  var res = [];
-  for (var key in a) res.push(key);
-  return res;
+module.exports = deepEqual;
+module.exports.MemoizeMap = MemoizeMap;
+
+/**
+ * Assert deeply nested sameValue equality between two objects of any type.
+ *
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @param {Object} [options] (optional) Additional options
+ * @param {Array} [options.comparator] (optional) Override default algorithm, determining custom equality.
+ * @param {Array} [options.memoize] (optional) Provide a custom memoization object which will cache the results of
+    complex objects for a speed boost. By passing `false` you can disable memoization, but this will cause circular
+    references to blow the stack.
+ * @return {Boolean} equal match
+ */
+function deepEqual(leftHandOperand, rightHandOperand, options) {
+  // If we have a comparator, we can't assume anything; so bail to its check first.
+  if (options && options.comparator) {
+    return extensiveDeepEqual(leftHandOperand, rightHandOperand, options);
+  }
+
+  var simpleResult = simpleEqual(leftHandOperand, rightHandOperand);
+  if (simpleResult !== null) {
+    return simpleResult;
+  }
+
+  // Deeper comparisons are pushed through to a larger function
+  return extensiveDeepEqual(leftHandOperand, rightHandOperand, options);
 }
 
-/*!
- * Simple equality for flat iterable objects
- * such as Arrays or Node.js buffers.
- *
- * @param {Iterable} a
- * @param {Iterable} b
- * @return {Boolean} result
+/**
+ * Many comparisons can be canceled out early via simple equality or primitive checks.
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @return {Boolean|null} equal match
  */
+function simpleEqual(leftHandOperand, rightHandOperand) {
+  // Equal references (except for Numbers) can be returned early
+  if (leftHandOperand === rightHandOperand) {
+    // Handle +-0 cases
+    return leftHandOperand !== 0 || 1 / leftHandOperand === 1 / rightHandOperand;
+  }
 
-function iterableEqual(a, b) {
-  if (a.length !==  b.length) return false;
+  // handle NaN cases
+  if (
+    leftHandOperand !== leftHandOperand && // eslint-disable-line no-self-compare
+    rightHandOperand !== rightHandOperand // eslint-disable-line no-self-compare
+  ) {
+    return true;
+  }
 
-  var i = 0;
-  var match = true;
+  // Anything that is not an 'object', i.e. symbols, functions, booleans, numbers,
+  // strings, and undefined, can be compared by reference.
+  if (isPrimitive(leftHandOperand) || isPrimitive(rightHandOperand)) {
+    // Easy out b/c it would have passed the first equality check
+    return false;
+  }
+  return null;
+}
 
-  for (; i < a.length; i++) {
-    if (a[i] !== b[i]) {
-      match = false;
-      break;
+/*!
+ * The main logic of the `deepEqual` function.
+ *
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @param {Object} [options] (optional) Additional options
+ * @param {Array} [options.comparator] (optional) Override default algorithm, determining custom equality.
+ * @param {Array} [options.memoize] (optional) Provide a custom memoization object which will cache the results of
+    complex objects for a speed boost. By passing `false` you can disable memoization, but this will cause circular
+    references to blow the stack.
+ * @return {Boolean} equal match
+*/
+function extensiveDeepEqual(leftHandOperand, rightHandOperand, options) {
+  options = options || {};
+  options.memoize = options.memoize === false ? false : options.memoize || new MemoizeMap();
+  var comparator = options && options.comparator;
+
+  // Check if a memoized result exists.
+  var memoizeResultLeft = memoizeCompare(leftHandOperand, rightHandOperand, options.memoize);
+  if (memoizeResultLeft !== null) {
+    return memoizeResultLeft;
+  }
+  var memoizeResultRight = memoizeCompare(rightHandOperand, leftHandOperand, options.memoize);
+  if (memoizeResultRight !== null) {
+    return memoizeResultRight;
+  }
+
+  // If a comparator is present, use it.
+  if (comparator) {
+    var comparatorResult = comparator(leftHandOperand, rightHandOperand);
+    // Comparators may return null, in which case we want to go back to default behavior.
+    if (comparatorResult === false || comparatorResult === true) {
+      memoizeSet(leftHandOperand, rightHandOperand, options.memoize, comparatorResult);
+      return comparatorResult;
+    }
+    // To allow comparators to override *any* behavior, we ran them first. Since it didn't decide
+    // what to do, we need to make sure to return the basic tests first before we move on.
+    var simpleResult = simpleEqual(leftHandOperand, rightHandOperand);
+    if (simpleResult !== null) {
+      // Don't memoize this, it takes longer to set/retrieve than to just compare.
+      return simpleResult;
     }
   }
 
-  return match;
+  var leftHandType = type(leftHandOperand);
+  if (leftHandType !== type(rightHandOperand)) {
+    memoizeSet(leftHandOperand, rightHandOperand, options.memoize, false);
+    return false;
+  }
+
+  // Temporarily set the operands in the memoize object to prevent blowing the stack
+  memoizeSet(leftHandOperand, rightHandOperand, options.memoize, true);
+
+  var result = extensiveDeepEqualByType(leftHandOperand, rightHandOperand, leftHandType, options);
+  memoizeSet(leftHandOperand, rightHandOperand, options.memoize, result);
+  return result;
+}
+
+function extensiveDeepEqualByType(leftHandOperand, rightHandOperand, leftHandType, options) {
+  switch (leftHandType) {
+    case 'String':
+    case 'Number':
+    case 'Boolean':
+    case 'Date':
+      // If these types are their instance types (e.g. `new Number`) then re-deepEqual against their values
+      return deepEqual(leftHandOperand.valueOf(), rightHandOperand.valueOf());
+    case 'Promise':
+    case 'Symbol':
+    case 'function':
+    case 'WeakMap':
+    case 'WeakSet':
+    case 'Error':
+      return leftHandOperand === rightHandOperand;
+    case 'Arguments':
+    case 'Int8Array':
+    case 'Uint8Array':
+    case 'Uint8ClampedArray':
+    case 'Int16Array':
+    case 'Uint16Array':
+    case 'Int32Array':
+    case 'Uint32Array':
+    case 'Float32Array':
+    case 'Float64Array':
+    case 'Array':
+      return iterableEqual(leftHandOperand, rightHandOperand, options);
+    case 'RegExp':
+      return regexpEqual(leftHandOperand, rightHandOperand);
+    case 'Generator':
+      return generatorEqual(leftHandOperand, rightHandOperand, options);
+    case 'DataView':
+      return iterableEqual(new Uint8Array(leftHandOperand.buffer), new Uint8Array(rightHandOperand.buffer), options);
+    case 'ArrayBuffer':
+      return iterableEqual(new Uint8Array(leftHandOperand), new Uint8Array(rightHandOperand), options);
+    case 'Set':
+      return entriesEqual(leftHandOperand, rightHandOperand, options);
+    case 'Map':
+      return entriesEqual(leftHandOperand, rightHandOperand, options);
+    default:
+      return objectEqual(leftHandOperand, rightHandOperand, options);
+  }
 }
 
 /*!
- * Extension to `iterableEqual` specifically
- * for Node.js Buffers.
+ * Compare two Regular Expressions for equality.
  *
- * @param {Buffer} a
- * @param {Mixed} b
+ * @param {RegExp} leftHandOperand
+ * @param {RegExp} rightHandOperand
  * @return {Boolean} result
  */
 
-function bufferEqual(a, b) {
-  if (!Buffer.isBuffer(b)) return false;
-  return iterableEqual(a, b);
+function regexpEqual(leftHandOperand, rightHandOperand) {
+  return leftHandOperand.toString() === rightHandOperand.toString();
 }
 
 /*!
- * Block for `objectEqual` ensuring non-existing
- * values don't get in.
+ * Compare two Sets/Maps for equality. Faster than other equality functions.
  *
- * @param {Mixed} object
+ * @param {Set} leftHandOperand
+ * @param {Set} rightHandOperand
+ * @param {Object} [options] (Optional)
  * @return {Boolean} result
  */
 
-function isValue(a) {
-  return a !== null && a !== undefined;
+function entriesEqual(leftHandOperand, rightHandOperand, options) {
+  // IE11 doesn't support Set#entries or Set#@@iterator, so we need manually populate using Set#forEach
+  if (leftHandOperand.size !== rightHandOperand.size) {
+    return false;
+  }
+  if (leftHandOperand.size === 0) {
+    return true;
+  }
+  var leftHandItems = [];
+  var rightHandItems = [];
+  leftHandOperand.forEach(function gatherEntries(key, value) {
+    leftHandItems.push([ key, value ]);
+  });
+  rightHandOperand.forEach(function gatherEntries(key, value) {
+    rightHandItems.push([ key, value ]);
+  });
+  return iterableEqual(leftHandItems.sort(), rightHandItems.sort(), options);
 }
 
 /*!
- * Recursively check the equality of two objects.
- * Once basic sameness has been established it will
- * defer to `deepEqual` for each enumerable key
- * in the object.
+ * Simple equality for flat iterable objects such as Arrays, TypedArrays or Node.js buffers.
  *
- * @param {Mixed} a
- * @param {Mixed} b
+ * @param {Iterable} leftHandOperand
+ * @param {Iterable} rightHandOperand
+ * @param {Object} [options] (Optional)
  * @return {Boolean} result
  */
 
-function objectEqual(a, b, m) {
-  if (!isValue(a) || !isValue(b)) {
+function iterableEqual(leftHandOperand, rightHandOperand, options) {
+  var length = leftHandOperand.length;
+  if (length !== rightHandOperand.length) {
     return false;
   }
-
-  if (a.prototype !== b.prototype) {
-    return false;
+  if (length === 0) {
+    return true;
   }
-
-  var i;
-  if (m) {
-    for (i = 0; i < m.length; i++) {
-      if ((m[i][0] === a && m[i][1] === b)
-      ||  (m[i][0] === b && m[i][1] === a)) {
-        return true;
-      }
+  var index = -1;
+  while (++index < length) {
+    if (deepEqual(leftHandOperand[index], rightHandOperand[index], options) === false) {
+      return false;
     }
-  } else {
-    m = [];
   }
+  return true;
+}
 
-  try {
-    var ka = enumerable(a);
-    var kb = enumerable(b);
-  } catch (ex) {
-    return false;
-  }
+/*!
+ * Simple equality for generator objects such as those returned by generator functions.
+ *
+ * @param {Iterable} leftHandOperand
+ * @param {Iterable} rightHandOperand
+ * @param {Object} [options] (Optional)
+ * @return {Boolean} result
+ */
 
-  ka.sort();
-  kb.sort();
+function generatorEqual(leftHandOperand, rightHandOperand, options) {
+  return iterableEqual(getGeneratorEntries(leftHandOperand), getGeneratorEntries(rightHandOperand), options);
+}
 
-  if (!iterableEqual(ka, kb)) {
-    return false;
+/*!
+ * Determine if the given object has an @@iterator function.
+ *
+ * @param {Object} target
+ * @return {Boolean} `true` if the object has an @@iterator function.
+ */
+function hasIteratorFunction(target) {
+  return typeof Symbol !== 'undefined' &&
+    typeof target === 'object' &&
+    typeof Symbol.iterator !== 'undefined' &&
+    typeof target[Symbol.iterator] === 'function';
+}
+
+/*!
+ * Gets all iterator entries from the given Object. If the Object has no @@iterator function, returns an empty array.
+ * This will consume the iterator - which could have side effects depending on the @@iterator implementation.
+ *
+ * @param {Object} target
+ * @returns {Array} an array of entries from the @@iterator function
+ */
+function getIteratorEntries(target) {
+  if (hasIteratorFunction(target)) {
+    try {
+      return getGeneratorEntries(target[Symbol.iterator]());
+    } catch (iteratorError) {
+      return [];
+    }
+  }
+  return [];
+}
+
+/*!
+ * Gets all entries from a Generator. This will consume the generator - which could have side effects.
+ *
+ * @param {Generator} target
+ * @returns {Array} an array of entries from the Generator.
+ */
+function getGeneratorEntries(generator) {
+  var generatorResult = generator.next();
+  var accumulator = [ generatorResult.value ];
+  while (generatorResult.done === false) {
+    generatorResult = generator.next();
+    accumulator.push(generatorResult.value);
   }
+  return accumulator;
+}
 
-  m.push([ a, b ]);
+/*!
+ * Gets all own and inherited enumerable keys from a target.
+ *
+ * @param {Object} target
+ * @returns {Array} an array of own and inherited enumerable keys from the target.
+ */
+function getEnumerableKeys(target) {
+  var keys = [];
+  for (var key in target) {
+    keys.push(key);
+  }
+  return keys;
+}
 
-  var key;
-  for (i = ka.length - 1; i >= 0; i--) {
-    key = ka[i];
-    if (!deepEqual(a[key], b[key], m)) {
+/*!
+ * Determines if two objects have matching values, given a set of keys. Defers to deepEqual for the equality check of
+ * each key. If any value of the given key is not equal, the function will return false (early).
+ *
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @param {Array} keys An array of keys to compare the values of leftHandOperand and rightHandOperand against
+ * @param {Object} [options] (Optional)
+ * @return {Boolean} result
+ */
+function keysEqual(leftHandOperand, rightHandOperand, keys, options) {
+  var length = keys.length;
+  if (length === 0) {
+    return true;
+  }
+  for (var i = 0; i < length; i += 1) {
+    if (deepEqual(leftHandOperand[keys[i]], rightHandOperand[keys[i]], options) === false) {
       return false;
     }
   }
-
   return true;
 }
 
-},{"buffer":undefined,"type-detect":33}],33:[function(require,module,exports){
-module.exports = require('./lib/type');
-
-},{"./lib/type":34}],34:[function(require,module,exports){
 /*!
- * type-detect
- * Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
- * MIT Licensed
+ * Recursively check the equality of two Objects. Once basic sameness has been established it will defer to `deepEqual`
+ * for each enumerable key in the object.
+ *
+ * @param {Mixed} leftHandOperand
+ * @param {Mixed} rightHandOperand
+ * @param {Object} [options] (Optional)
+ * @return {Boolean} result
  */
 
-/*!
- * Primary Exports
- */
+function objectEqual(leftHandOperand, rightHandOperand, options) {
+  var leftHandKeys = getEnumerableKeys(leftHandOperand);
+  var rightHandKeys = getEnumerableKeys(rightHandOperand);
+  if (leftHandKeys.length && leftHandKeys.length === rightHandKeys.length) {
+    leftHandKeys.sort();
+    rightHandKeys.sort();
+    if (iterableEqual(leftHandKeys, rightHandKeys) === false) {
+      return false;
+    }
+    return keysEqual(leftHandOperand, rightHandOperand, leftHandKeys, options);
+  }
+
+  var leftHandEntries = getIteratorEntries(leftHandOperand);
+  var rightHandEntries = getIteratorEntries(rightHandOperand);
+  if (leftHandEntries.length && leftHandEntries.length === rightHandEntries.length) {
+    leftHandEntries.sort();
+    rightHandEntries.sort();
+    return iterableEqual(leftHandEntries, rightHandEntries, options);
+  }
+
+  if (leftHandKeys.length === 0 &&
+      leftHandEntries.length === 0 &&
+      rightHandKeys.length === 0 &&
+      rightHandEntries.length === 0) {
+    return true;
+  }
 
-var exports = module.exports = getType;
+  return false;
+}
 
 /*!
- * Detectable javascript natives
+ * Returns true if the argument is a primitive.
+ *
+ * This intentionally returns true for all objects that can be compared by reference,
+ * including functions and symbols.
+ *
+ * @param {Mixed} value
+ * @return {Boolean} result
  */
+function isPrimitive(value) {
+  return value === null || typeof value !== 'object';
+}
 
-var natives = {
-    '[object Array]': 'array'
-  , '[object RegExp]': 'regexp'
-  , '[object Function]': 'function'
-  , '[object Arguments]': 'arguments'
-  , '[object Date]': 'date'
-};
+},{"type-detect":38}],36:[function(require,module,exports){
+'use strict';
+
+/* !
+ * Chai - getFuncName utility
+ * Copyright(c) 2012-2016 Jake Luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
 
 /**
- * ### typeOf (obj)
- *
- * Use several different techniques to determine
- * the type of object being tested.
+ * ### .getFuncName(constructorFn)
  *
+ * Returns the name of a function.
+ * When a non-function instance is passed, returns `null`.
+ * This also includes a polyfill function if `aFunc.name` is not defined.
  *
- * @param {Mixed} object
- * @return {String} object type
+ * @name getFuncName
+ * @param {Function} funct
+ * @namespace Utils
  * @api public
  */
 
-function getType (obj) {
-  var str = Object.prototype.toString.call(obj);
-  if (natives[str]) return natives[str];
-  if (obj === null) return 'null';
-  if (obj === undefined) return 'undefined';
-  if (obj === Object(obj)) return 'object';
-  return typeof obj;
+var toString = Function.prototype.toString;
+var functionNameMatch = /\s*function(?:\s|\s*\/\*[^(?:*\/)]+\*\/\s*)*([^\s\(\/]+)/;
+function getFuncName(aFunc) {
+  if (typeof aFunc !== 'function') {
+    return null;
+  }
+
+  var name = '';
+  if (typeof Function.prototype.name === 'undefined' && typeof aFunc.name === 'undefined') {
+    // Here we run a polyfill if Function does not support the `name` property and if aFunc.name is not defined
+    var match = toString.call(aFunc).match(functionNameMatch);
+    if (match) {
+      name = match[1];
+    }
+  } else {
+    // If we've got a `name` property we just use it
+    name = aFunc.name;
+  }
+
+  return name;
 }
 
-exports.Library = Library;
+module.exports = getFuncName;
+
+},{}],37:[function(require,module,exports){
+'use strict';
+
+/* !
+ * Chai - pathval utility
+ * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
+ * @see https://github.com/logicalparadox/filtr
+ * MIT Licensed
+ */
 
 /**
- * ### Library
+ * ### .hasProperty(object, name)
  *
- * Create a repository for custom type detection.
+ * This allows checking whether an object has own
+ * or inherited from prototype chain named property.
  *
- * ```js
- * var lib = new type.Library;
- * ```
+ * Basically does the same thing as the `in`
+ * operator but works properly with null/undefined values
+ * and other primitives.
  *
- */
-
-function Library () {
-  this.tests = {};
-}
-
-/**
- * #### .of (obj)
+ *     var obj = {
+ *         arr: ['a', 'b', 'c']
+ *       , str: 'Hello'
+ *     }
  *
- * Expose replacement `typeof` detection to the library.
+ * The following would be the results.
  *
- * ```js
- * if ('string' === lib.of('hello world')) {
- *   // ...
- * }
- * ```
+ *     hasProperty(obj, 'str');  // true
+ *     hasProperty(obj, 'constructor');  // true
+ *     hasProperty(obj, 'bar');  // false
+ *
+ *     hasProperty(obj.str, 'length'); // true
+ *     hasProperty(obj.str, 1);  // true
+ *     hasProperty(obj.str, 5);  // false
  *
- * @param {Mixed} object to test
- * @return {String} type
+ *     hasProperty(obj.arr, 'length');  // true
+ *     hasProperty(obj.arr, 2);  // true
+ *     hasProperty(obj.arr, 3);  // false
+ *
+ * @param {Object} object
+ * @param {String|Symbol} name
+ * @returns {Boolean} whether it exists
+ * @namespace Utils
+ * @name hasProperty
+ * @api public
  */
 
-Library.prototype.of = getType;
+function hasProperty(obj, name) {
+  if (typeof obj === 'undefined' || obj === null) {
+    return false;
+  }
 
-/**
- * #### .define (type, test)
- *
- * Add a test to for the `.test()` assertion.
+  // The `in` operator does not work with primitives.
+  return name in Object(obj);
+}
+
+/* !
+ * ## parsePath(path)
  *
- * Can be defined as a regular expression:
+ * Helper function used to parse string object
+ * paths. Use in conjunction with `internalGetPathValue`.
  *
- * ```js
- * lib.define('int', /^[0-9]+$/);
- * ```
+ *      var parsed = parsePath('myobject.property.subprop');
  *
- * ... or as a function:
+ * ### Paths:
  *
- * ```js
- * lib.define('bln', function (obj) {
- *   if ('boolean' === lib.of(obj)) return true;
- *   var blns = [ 'yes', 'no', 'true', 'false', 1, 0 ];
- *   if ('string' === lib.of(obj)) obj = obj.toLowerCase();
- *   return !! ~blns.indexOf(obj);
- * });
- * ```
+ * * Can be infinitely deep and nested.
+ * * Arrays are also valid using the formal `myobject.document[3].property`.
+ * * Literal dots and brackets (not delimiter) must be backslash-escaped.
  *
- * @param {String} type
- * @param {RegExp|Function} test
- * @api public
+ * @param {String} path
+ * @returns {Object} parsed
+ * @api private
  */
 
-Library.prototype.define = function (type, test) {
-  if (arguments.length === 1) return this.tests[type];
-  this.tests[type] = test;
-  return this;
-};
+function parsePath(path) {
+  var str = path.replace(/([^\\])\[/g, '$1.[');
+  var parts = str.match(/(\\\.|[^.]+?)+/g);
+  return parts.map(function mapMatches(value) {
+    var regexp = /^\[(\d+)\]$/;
+    var mArr = regexp.exec(value);
+    var parsed = null;
+    if (mArr) {
+      parsed = { i: parseFloat(mArr[1]) };
+    } else {
+      parsed = { p: value.replace(/\\([.\[\]])/g, '$1') };
+    }
 
-/**
- * #### .test (obj, test)
+    return parsed;
+  });
+}
+
+/* !
+ * ## internalGetPathValue(obj, parsed[, pathDepth])
  *
- * Assert that an object is of type. Will first
- * check natives, and if that does not pass it will
- * use the user defined custom tests.
+ * Helper companion function for `.parsePath` that returns
+ * the value located at the parsed address.
  *
- * ```js
- * assert(lib.test('1', 'int'));
- * assert(lib.test('yes', 'bln'));
- * ```
+ *      var value = getPathValue(obj, parsed);
  *
- * @param {Mixed} object
- * @param {String} type
- * @return {Boolean} result
- * @api public
+ * @param {Object} object to search against
+ * @param {Object} parsed definition from `parsePath`.
+ * @param {Number} depth (nesting level) of the property we want to retrieve
+ * @returns {Object|Undefined} value
+ * @api private
  */
 
-Library.prototype.test = function (obj, type) {
-  if (type === getType(obj)) return true;
-  var test = this.tests[type];
-
-  if (test && 'regexp' === getType(test)) {
-    return test.test(obj);
-  } else if (test && 'function' === getType(test)) {
-    return test(obj);
-  } else {
-    throw new ReferenceError('Type test "' + type + '" not defined or invalid.');
-  }
-};
+function internalGetPathValue(obj, parsed, pathDepth) {
+  var temporaryValue = obj;
+  var res = null;
+  pathDepth = (typeof pathDepth === 'undefined' ? parsed.length : pathDepth);
 
-},{}],35:[function(require,module,exports){
-arguments[4][33][0].apply(exports,arguments)
-},{"./lib/type":36,"dup":33}],36:[function(require,module,exports){
-/*!
- * type-detect
- * Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
- * MIT Licensed
- */
+  for (var i = 0; i < pathDepth; i++) {
+    var part = parsed[i];
+    if (temporaryValue) {
+      if (typeof part.p === 'undefined') {
+        temporaryValue = temporaryValue[part.i];
+      } else {
+        temporaryValue = temporaryValue[part.p];
+      }
 
-/*!
- * Primary Exports
- */
+      if (i === (pathDepth - 1)) {
+        res = temporaryValue;
+      }
+    }
+  }
 
-var exports = module.exports = getType;
+  return res;
+}
 
-/**
- * ### typeOf (obj)
+/* !
+ * ## internalSetPathValue(obj, value, parsed)
  *
- * Use several different techniques to determine
- * the type of object being tested.
+ * Companion function for `parsePath` that sets
+ * the value located at a parsed address.
  *
+ *  internalSetPathValue(obj, 'value', parsed);
  *
- * @param {Mixed} object
- * @return {String} object type
- * @api public
+ * @param {Object} object to search and define on
+ * @param {*} value to use upon set
+ * @param {Object} parsed definition from `parsePath`
+ * @api private
  */
-var objectTypeRegexp = /^\[object (.*)\]$/;
-
-function getType(obj) {
-  var type = Object.prototype.toString.call(obj).match(objectTypeRegexp)[1].toLowerCase();
-  // Let "new String('')" return 'object'
-  if (typeof Promise === 'function' && obj instanceof Promise) return 'promise';
-  // PhantomJS has type "DOMWindow" for null
-  if (obj === null) return 'null';
-  // PhantomJS has type "DOMWindow" for undefined
-  if (obj === undefined) return 'undefined';
-  return type;
-}
 
-exports.Library = Library;
+function internalSetPathValue(obj, val, parsed) {
+  var tempObj = obj;
+  var pathDepth = parsed.length;
+  var part = null;
+  // Here we iterate through every part of the path
+  for (var i = 0; i < pathDepth; i++) {
+    var propName = null;
+    var propVal = null;
+    part = parsed[i];
+
+    // If it's the last part of the path, we set the 'propName' value with the property name
+    if (i === (pathDepth - 1)) {
+      propName = typeof part.p === 'undefined' ? part.i : part.p;
+      // Now we set the property with the name held by 'propName' on object with the desired val
+      tempObj[propName] = val;
+    } else if (typeof part.p !== 'undefined' && tempObj[part.p]) {
+      tempObj = tempObj[part.p];
+    } else if (typeof part.i !== 'undefined' && tempObj[part.i]) {
+      tempObj = tempObj[part.i];
+    } else {
+      // If the obj doesn't have the property we create one with that name to define it
+      var next = parsed[i + 1];
+      // Here we set the name of the property which will be defined
+      propName = typeof part.p === 'undefined' ? part.i : part.p;
+      // Here we decide if this property will be an array or a new object
+      propVal = typeof next.p === 'undefined' ? [] : {};
+      tempObj[propName] = propVal;
+      tempObj = tempObj[propName];
+    }
+  }
+}
 
 /**
- * ### Library
+ * ### .getPathInfo(object, path)
  *
- * Create a repository for custom type detection.
+ * This allows the retrieval of property info in an
+ * object given a string path.
  *
- * ```js
- * var lib = new type.Library;
- * ```
+ * The path info consists of an object with the
+ * following properties:
+ *
+ * * parent - The parent object of the property referenced by `path`
+ * * name - The name of the final property, a number if it was an array indexer
+ * * value - The value of the property, if it exists, otherwise `undefined`
+ * * exists - Whether the property exists or not
  *
+ * @param {Object} object
+ * @param {String} path
+ * @returns {Object} info
+ * @namespace Utils
+ * @name getPathInfo
+ * @api public
  */
 
-function Library() {
-  if (!(this instanceof Library)) return new Library();
-  this.tests = {};
+function getPathInfo(obj, path) {
+  var parsed = parsePath(path);
+  var last = parsed[parsed.length - 1];
+  var info = {
+    parent: parsed.length > 1 ? internalGetPathValue(obj, parsed, parsed.length - 1) : obj,
+    name: last.p || last.i,
+    value: internalGetPathValue(obj, parsed),
+  };
+  info.exists = hasProperty(info.parent, info.name);
+
+  return info;
 }
 
 /**
- * #### .of (obj)
+ * ### .getPathValue(object, path)
  *
- * Expose replacement `typeof` detection to the library.
+ * This allows the retrieval of values in an
+ * object given a string path.
  *
- * ```js
- * if ('string' === lib.of('hello world')) {
- *   // ...
- * }
- * ```
+ *     var obj = {
+ *         prop1: {
+ *             arr: ['a', 'b', 'c']
+ *           , str: 'Hello'
+ *         }
+ *       , prop2: {
+ *             arr: [ { nested: 'Universe' } ]
+ *           , str: 'Hello again!'
+ *         }
+ *     }
+ *
+ * The following would be the results.
+ *
+ *     getPathValue(obj, 'prop1.str'); // Hello
+ *     getPathValue(obj, 'prop1.att[2]'); // b
+ *     getPathValue(obj, 'prop2.arr[0].nested'); // Universe
  *
- * @param {Mixed} object to test
- * @return {String} type
+ * @param {Object} object
+ * @param {String} path
+ * @returns {Object} value or `undefined`
+ * @namespace Utils
+ * @name getPathValue
+ * @api public
  */
 
-Library.prototype.of = getType;
+function getPathValue(obj, path) {
+  var info = getPathInfo(obj, path);
+  return info.value;
+}
 
 /**
- * #### .define (type, test)
+ * ### .setPathValue(object, path, value)
  *
- * Add a test to for the `.test()` assertion.
- *
- * Can be defined as a regular expression:
+ * Define the value in an object at a given string path.
  *
  * ```js
- * lib.define('int', /^[0-9]+$/);
+ * var obj = {
+ *     prop1: {
+ *         arr: ['a', 'b', 'c']
+ *       , str: 'Hello'
+ *     }
+ *   , prop2: {
+ *         arr: [ { nested: 'Universe' } ]
+ *       , str: 'Hello again!'
+ *     }
+ * };
  * ```
  *
- * ... or as a function:
+ * The following would be acceptable.
  *
  * ```js
- * lib.define('bln', function (obj) {
- *   if ('boolean' === lib.of(obj)) return true;
- *   var blns = [ 'yes', 'no', 'true', 'false', 1, 0 ];
- *   if ('string' === lib.of(obj)) obj = obj.toLowerCase();
- *   return !! ~blns.indexOf(obj);
- * });
+ * var properties = require('tea-properties');
+ * properties.set(obj, 'prop1.str', 'Hello Universe!');
+ * properties.set(obj, 'prop1.arr[2]', 'B');
+ * properties.set(obj, 'prop2.arr[0].nested.value', { hello: 'universe' });
  * ```
  *
- * @param {String} type
- * @param {RegExp|Function} test
- * @api public
+ * @param {Object} object
+ * @param {String} path
+ * @param {Mixed} value
+ * @api private
  */
 
-Library.prototype.define = function(type, test) {
-  if (arguments.length === 1) return this.tests[type];
-  this.tests[type] = test;
-  return this;
+function setPathValue(obj, path, val) {
+  var parsed = parsePath(path);
+  internalSetPathValue(obj, val, parsed);
+  return obj;
+}
+
+module.exports = {
+  hasProperty: hasProperty,
+  getPathInfo: getPathInfo,
+  getPathValue: getPathValue,
+  setPathValue: setPathValue,
 };
 
+},{}],38:[function(require,module,exports){
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global.typeDetect = factory());
+}(this, (function () { 'use strict';
+
+/* !
+ * type-detect
+ * Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
+ * MIT Licensed
+ */
+var promiseExists = typeof Promise === 'function';
+
+/* eslint-disable no-undef */
+var globalObject = typeof self === 'object' ? self : global; // eslint-disable-line id-blacklist
+
+var symbolExists = typeof Symbol !== 'undefined';
+var mapExists = typeof Map !== 'undefined';
+var setExists = typeof Set !== 'undefined';
+var weakMapExists = typeof WeakMap !== 'undefined';
+var weakSetExists = typeof WeakSet !== 'undefined';
+var dataViewExists = typeof DataView !== 'undefined';
+var symbolIteratorExists = symbolExists && typeof Symbol.iterator !== 'undefined';
+var symbolToStringTagExists = symbolExists && typeof Symbol.toStringTag !== 'undefined';
+var setEntriesExists = setExists && typeof Set.prototype.entries === 'function';
+var mapEntriesExists = mapExists && typeof Map.prototype.entries === 'function';
+var setIteratorPrototype = setEntriesExists && Object.getPrototypeOf(new Set().entries());
+var mapIteratorPrototype = mapEntriesExists && Object.getPrototypeOf(new Map().entries());
+var arrayIteratorExists = symbolIteratorExists && typeof Array.prototype[Symbol.iterator] === 'function';
+var arrayIteratorPrototype = arrayIteratorExists && Object.getPrototypeOf([][Symbol.iterator]());
+var stringIteratorExists = symbolIteratorExists && typeof String.prototype[Symbol.iterator] === 'function';
+var stringIteratorPrototype = stringIteratorExists && Object.getPrototypeOf(''[Symbol.iterator]());
+var toStringLeftSliceLength = 8;
+var toStringRightSliceLength = -1;
 /**
- * #### .test (obj, test)
- *
- * Assert that an object is of type. Will first
- * check natives, and if that does not pass it will
- * use the user defined custom tests.
+ * ### typeOf (obj)
  *
- * ```js
- * assert(lib.test('1', 'int'));
- * assert(lib.test('yes', 'bln'));
- * ```
+ * Uses `Object.prototype.toString` to determine the type of an object,
+ * normalising behaviour across engine versions & well optimised.
  *
  * @param {Mixed} object
- * @param {String} type
- * @return {Boolean} result
+ * @return {String} object type
  * @api public
  */
+function typeDetect(obj) {
+  /* ! Speed optimisation
+   * Pre:
+   *   string literal     x 3,039,035 ops/sec ±1.62% (78 runs sampled)
+   *   boolean literal    x 1,424,138 ops/sec ±4.54% (75 runs sampled)
+   *   number literal     x 1,653,153 ops/sec ±1.91% (82 runs sampled)
+   *   undefined          x 9,978,660 ops/sec ±1.92% (75 runs sampled)
+   *   function           x 2,556,769 ops/sec ±1.73% (77 runs sampled)
+   * Post:
+   *   string literal     x 38,564,796 ops/sec ±1.15% (79 runs sampled)
+   *   boolean literal    x 31,148,940 ops/sec ±1.10% (79 runs sampled)
+   *   number literal     x 32,679,330 ops/sec ±1.90% (78 runs sampled)
+   *   undefined          x 32,363,368 ops/sec ±1.07% (82 runs sampled)
+   *   function           x 31,296,870 ops/sec ±0.96% (83 runs sampled)
+   */
+  var typeofObj = typeof obj;
+  if (typeofObj !== 'object') {
+    return typeofObj;
+  }
+
+  /* ! Speed optimisation
+   * Pre:
+   *   null               x 28,645,765 ops/sec ±1.17% (82 runs sampled)
+   * Post:
+   *   null               x 36,428,962 ops/sec ±1.37% (84 runs sampled)
+   */
+  if (obj === null) {
+    return 'null';
+  }
 
-Library.prototype.test = function(obj, type) {
-  if (type === getType(obj)) return true;
-  var test = this.tests[type];
+  /* ! Spec Conformance
+   * Test: `Object.prototype.toString.call(window)``
+   *  - Node === "[object global]"
+   *  - Chrome === "[object global]"
+   *  - Firefox === "[object Window]"
+   *  - PhantomJS === "[object Window]"
+   *  - Safari === "[object Window]"
+   *  - IE 11 === "[object Window]"
+   *  - IE Edge === "[object Window]"
+   * Test: `Object.prototype.toString.call(this)``
+   *  - Chrome Worker === "[object global]"
+   *  - Firefox Worker === "[object DedicatedWorkerGlobalScope]"
+   *  - Safari Worker === "[object DedicatedWorkerGlobalScope]"
+   *  - IE 11 Worker === "[object WorkerGlobalScope]"
+   *  - IE Edge Worker === "[object WorkerGlobalScope]"
+   */
+  if (obj === globalObject) {
+    return 'global';
+  }
 
-  if (test && 'regexp' === getType(test)) {
-    return test.test(obj);
-  } else if (test && 'function' === getType(test)) {
-    return test(obj);
-  } else {
-    throw new ReferenceError('Type test "' + type + '" not defined or invalid.');
+  /* ! Speed optimisation
+   * Pre:
+   *   array literal      x 2,888,352 ops/sec ±0.67% (82 runs sampled)
+   * Post:
+   *   array literal      x 22,479,650 ops/sec ±0.96% (81 runs sampled)
+   */
+  if (
+    Array.isArray(obj) &&
+    (symbolToStringTagExists === false || !(Symbol.toStringTag in obj))
+  ) {
+    return 'Array';
   }
-};
+
+  // Not caching existence of `window` and related properties due to potential
+  // for `window` to be unset before tests in quasi-browser environments.
+  if (typeof window === 'object' && window !== null) {
+    /* ! Spec Conformance
+     * (https://html.spec.whatwg.org/multipage/browsers.html#location)
+     * WhatWG HTML$7.7.3 - The `Location` interface
+     * Test: `Object.prototype.toString.call(window.location)``
+     *  - IE <=11 === "[object Object]"
+     *  - IE Edge <=13 === "[object Object]"
+     */
+    if (typeof window.location === 'object' && obj === window.location) {
+      return 'Location';
+    }
+
+    /* ! Spec Conformance
+     * (https://html.spec.whatwg.org/#document)
+     * WhatWG HTML$3.1.1 - The `Document` object
+     * Note: Most browsers currently adher to the W3C DOM Level 2 spec
+     *       (https://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-26809268)
+     *       which suggests that browsers should use HTMLTableCellElement for
+     *       both TD and TH elements. WhatWG separates these.
+     *       WhatWG HTML states:
+     *         > For historical reasons, Window objects must also have a
+     *         > writable, configurable, non-enumerable property named
+     *         > HTMLDocument whose value is the Document interface object.
+     * Test: `Object.prototype.toString.call(document)``
+     *  - Chrome === "[object HTMLDocument]"
+     *  - Firefox === "[object HTMLDocument]"
+     *  - Safari === "[object HTMLDocument]"
+     *  - IE <=10 === "[object Document]"
+     *  - IE 11 === "[object HTMLDocument]"
+     *  - IE Edge <=13 === "[object HTMLDocument]"
+     */
+    if (typeof window.document === 'object' && obj === window.document) {
+      return 'Document';
+    }
+
+    if (typeof window.navigator === 'object') {
+      /* ! Spec Conformance
+       * (https://html.spec.whatwg.org/multipage/webappapis.html#mimetypearray)
+       * WhatWG HTML$8.6.1.5 - Plugins - Interface MimeTypeArray
+       * Test: `Object.prototype.toString.call(navigator.mimeTypes)``
+       *  - IE <=10 === "[object MSMimeTypesCollection]"
+       */
+      if (typeof window.navigator.mimeTypes === 'object' &&
+          obj === window.navigator.mimeTypes) {
+        return 'MimeTypeArray';
+      }
+
+      /* ! Spec Conformance
+       * (https://html.spec.whatwg.org/multipage/webappapis.html#pluginarray)
+       * WhatWG HTML$8.6.1.5 - Plugins - Interface PluginArray
+       * Test: `Object.prototype.toString.call(navigator.plugins)``
+       *  - IE <=10 === "[object MSPluginsCollection]"
+       */
+      if (typeof window.navigator.plugins === 'object' &&
+          obj === window.navigator.plugins) {
+        return 'PluginArray';
+      }
+    }
+
+    if ((typeof window.HTMLElement === 'function' ||
+        typeof window.HTMLElement === 'object') &&
+        obj instanceof window.HTMLElement) {
+      /* ! Spec Conformance
+      * (https://html.spec.whatwg.org/multipage/webappapis.html#pluginarray)
+      * WhatWG HTML$4.4.4 - The `blockquote` element - Interface `HTMLQuoteElement`
+      * Test: `Object.prototype.toString.call(document.createElement('blockquote'))``
+      *  - IE <=10 === "[object HTMLBlockElement]"
+      */
+      if (obj.tagName === 'BLOCKQUOTE') {
+        return 'HTMLQuoteElement';
+      }
+
+      /* ! Spec Conformance
+       * (https://html.spec.whatwg.org/#htmltabledatacellelement)
+       * WhatWG HTML$4.9.9 - The `td` element - Interface `HTMLTableDataCellElement`
+       * Note: Most browsers currently adher to the W3C DOM Level 2 spec
+       *       (https://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-82915075)
+       *       which suggests that browsers should use HTMLTableCellElement for
+       *       both TD and TH elements. WhatWG separates these.
+       * Test: Object.prototype.toString.call(document.createElement('td'))
+       *  - Chrome === "[object HTMLTableCellElement]"
+       *  - Firefox === "[object HTMLTableCellElement]"
+       *  - Safari === "[object HTMLTableCellElement]"
+       */
+      if (obj.tagName === 'TD') {
+        return 'HTMLTableDataCellElement';
+      }
+
+      /* ! Spec Conformance
+       * (https://html.spec.whatwg.org/#htmltableheadercellelement)
+       * WhatWG HTML$4.9.9 - The `td` element - Interface `HTMLTableHeaderCellElement`
+       * Note: Most browsers currently adher to the W3C DOM Level 2 spec
+       *       (https://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-82915075)
+       *       which suggests that browsers should use HTMLTableCellElement for
+       *       both TD and TH elements. WhatWG separates these.
+       * Test: Object.prototype.toString.call(document.createElement('th'))
+       *  - Chrome === "[object HTMLTableCellElement]"
+       *  - Firefox === "[object HTMLTableCellElement]"
+       *  - Safari === "[object HTMLTableCellElement]"
+       */
+      if (obj.tagName === 'TH') {
+        return 'HTMLTableHeaderCellElement';
+      }
+    }
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   Float64Array       x 625,644 ops/sec ±1.58% (80 runs sampled)
+  *   Float32Array       x 1,279,852 ops/sec ±2.91% (77 runs sampled)
+  *   Uint32Array        x 1,178,185 ops/sec ±1.95% (83 runs sampled)
+  *   Uint16Array        x 1,008,380 ops/sec ±2.25% (80 runs sampled)
+  *   Uint8Array         x 1,128,040 ops/sec ±2.11% (81 runs sampled)
+  *   Int32Array         x 1,170,119 ops/sec ±2.88% (80 runs sampled)
+  *   Int16Array         x 1,176,348 ops/sec ±5.79% (86 runs sampled)
+  *   Int8Array          x 1,058,707 ops/sec ±4.94% (77 runs sampled)
+  *   Uint8ClampedArray  x 1,110,633 ops/sec ±4.20% (80 runs sampled)
+  * Post:
+  *   Float64Array       x 7,105,671 ops/sec ±13.47% (64 runs sampled)
+  *   Float32Array       x 5,887,912 ops/sec ±1.46% (82 runs sampled)
+  *   Uint32Array        x 6,491,661 ops/sec ±1.76% (79 runs sampled)
+  *   Uint16Array        x 6,559,795 ops/sec ±1.67% (82 runs sampled)
+  *   Uint8Array         x 6,463,966 ops/sec ±1.43% (85 runs sampled)
+  *   Int32Array         x 5,641,841 ops/sec ±3.49% (81 runs sampled)
+  *   Int16Array         x 6,583,511 ops/sec ±1.98% (80 runs sampled)
+  *   Int8Array          x 6,606,078 ops/sec ±1.74% (81 runs sampled)
+  *   Uint8ClampedArray  x 6,602,224 ops/sec ±1.77% (83 runs sampled)
+  */
+  var stringTag = (symbolToStringTagExists && obj[Symbol.toStringTag]);
+  if (typeof stringTag === 'string') {
+    return stringTag;
+  }
+
+  var objPrototype = Object.getPrototypeOf(obj);
+  /* ! Speed optimisation
+  * Pre:
+  *   regex literal      x 1,772,385 ops/sec ±1.85% (77 runs sampled)
+  *   regex constructor  x 2,143,634 ops/sec ±2.46% (78 runs sampled)
+  * Post:
+  *   regex literal      x 3,928,009 ops/sec ±0.65% (78 runs sampled)
+  *   regex constructor  x 3,931,108 ops/sec ±0.58% (84 runs sampled)
+  */
+  if (objPrototype === RegExp.prototype) {
+    return 'RegExp';
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   date               x 2,130,074 ops/sec ±4.42% (68 runs sampled)
+  * Post:
+  *   date               x 3,953,779 ops/sec ±1.35% (77 runs sampled)
+  */
+  if (objPrototype === Date.prototype) {
+    return 'Date';
+  }
+
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise.prototype-@@tostringtag)
+   * ES6$25.4.5.4 - Promise.prototype[@@toStringTag] should be "Promise":
+   * Test: `Object.prototype.toString.call(Promise.resolve())``
+   *  - Chrome <=47 === "[object Object]"
+   *  - Edge <=20 === "[object Object]"
+   *  - Firefox 29-Latest === "[object Promise]"
+   *  - Safari 7.1-Latest === "[object Promise]"
+   */
+  if (promiseExists && objPrototype === Promise.prototype) {
+    return 'Promise';
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   set                x 2,222,186 ops/sec ±1.31% (82 runs sampled)
+  * Post:
+  *   set                x 4,545,879 ops/sec ±1.13% (83 runs sampled)
+  */
+  if (setExists && objPrototype === Set.prototype) {
+    return 'Set';
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   map                x 2,396,842 ops/sec ±1.59% (81 runs sampled)
+  * Post:
+  *   map                x 4,183,945 ops/sec ±6.59% (82 runs sampled)
+  */
+  if (mapExists && objPrototype === Map.prototype) {
+    return 'Map';
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   weakset            x 1,323,220 ops/sec ±2.17% (76 runs sampled)
+  * Post:
+  *   weakset            x 4,237,510 ops/sec ±2.01% (77 runs sampled)
+  */
+  if (weakSetExists && objPrototype === WeakSet.prototype) {
+    return 'WeakSet';
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   weakmap            x 1,500,260 ops/sec ±2.02% (78 runs sampled)
+  * Post:
+  *   weakmap            x 3,881,384 ops/sec ±1.45% (82 runs sampled)
+  */
+  if (weakMapExists && objPrototype === WeakMap.prototype) {
+    return 'WeakMap';
+  }
+
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-dataview.prototype-@@tostringtag)
+   * ES6$24.2.4.21 - DataView.prototype[@@toStringTag] should be "DataView":
+   * Test: `Object.prototype.toString.call(new DataView(new ArrayBuffer(1)))``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (dataViewExists && objPrototype === DataView.prototype) {
+    return 'DataView';
+  }
+
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%mapiteratorprototype%-@@tostringtag)
+   * ES6$23.1.5.2.2 - %MapIteratorPrototype%[@@toStringTag] should be "Map Iterator":
+   * Test: `Object.prototype.toString.call(new Map().entries())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (mapExists && objPrototype === mapIteratorPrototype) {
+    return 'Map Iterator';
+  }
+
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%setiteratorprototype%-@@tostringtag)
+   * ES6$23.2.5.2.2 - %SetIteratorPrototype%[@@toStringTag] should be "Set Iterator":
+   * Test: `Object.prototype.toString.call(new Set().entries())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (setExists && objPrototype === setIteratorPrototype) {
+    return 'Set Iterator';
+  }
+
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%arrayiteratorprototype%-@@tostringtag)
+   * ES6$22.1.5.2.2 - %ArrayIteratorPrototype%[@@toStringTag] should be "Array Iterator":
+   * Test: `Object.prototype.toString.call([][Symbol.iterator]())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (arrayIteratorExists && objPrototype === arrayIteratorPrototype) {
+    return 'Array Iterator';
+  }
+
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%stringiteratorprototype%-@@tostringtag)
+   * ES6$21.1.5.2.2 - %StringIteratorPrototype%[@@toStringTag] should be "String Iterator":
+   * Test: `Object.prototype.toString.call(''[Symbol.iterator]())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (stringIteratorExists && objPrototype === stringIteratorPrototype) {
+    return 'String Iterator';
+  }
+
+  /* ! Speed optimisation
+  * Pre:
+  *   object from null   x 2,424,320 ops/sec ±1.67% (76 runs sampled)
+  * Post:
+  *   object from null   x 5,838,000 ops/sec ±0.99% (84 runs sampled)
+  */
+  if (objPrototype === null) {
+    return 'Object';
+  }
+
+  return Object
+    .prototype
+    .toString
+    .call(obj)
+    .slice(toStringLeftSliceLength, toStringRightSliceLength);
+}
+
+return typeDetect;
+
+})));
 
 },{}]},{},[1])(1)
 });
diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index aaaebeb..39be9a5 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -9,9 +9,9 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define */
+/* global define, module, require */
 
-;(function (factory) {
+;(function(factory) {
   'use strict'
   if (typeof define === 'function' && define.amd) {
     // Register as an anonymous AMD module:
@@ -22,12 +22,12 @@
     // Browser globals:
     factory(window.loadImage)
   }
-}(function (loadImage) {
+})(function(loadImage) {
   'use strict'
 
   var originalTransform = loadImage.transform
 
-  loadImage.transform = function (img, options, callback, file, data) {
+  loadImage.transform = function(img, options, callback, file, data) {
     originalTransform.call(
       loadImage,
       loadImage.scale(img, options, data),
@@ -41,14 +41,12 @@
   // Transform image coordinates, allows to override e.g.
   // the canvas orientation based on the orientation option,
   // gets canvas, options passed as arguments:
-  loadImage.transformCoordinates = function () {
-    return
-  }
+  loadImage.transformCoordinates = function() {}
 
   // Returns transformed options, allows to override e.g.
   // maxWidth, maxHeight and crop options based on the aspectRatio.
   // gets img, options passed as arguments:
-  loadImage.getTransformedOptions = function (img, options) {
+  loadImage.getTransformedOptions = function(img, options) {
     var aspectRatio = options.aspectRatio
     var newOptions
     var i
@@ -59,7 +57,7 @@
     }
     newOptions = {}
     for (i in options) {
-      if (options.hasOwnProperty(i)) {
+      if (Object.prototype.hasOwnProperty.call(options, i)) {
         newOptions[i] = options[i]
       }
     }
@@ -77,7 +75,7 @@
   }
 
   // Canvas render method, allows to implement a different rendering algorithm:
-  loadImage.renderImageToCanvas = function (
+  loadImage.renderImageToCanvas = function(
     canvas,
     img,
     sourceX,
@@ -89,22 +87,24 @@
     destWidth,
     destHeight
   ) {
-    canvas.getContext('2d').drawImage(
-      img,
-      sourceX,
-      sourceY,
-      sourceWidth,
-      sourceHeight,
-      destX,
-      destY,
-      destWidth,
-      destHeight
-    )
+    canvas
+      .getContext('2d')
+      .drawImage(
+        img,
+        sourceX,
+        sourceY,
+        sourceWidth,
+        sourceHeight,
+        destX,
+        destY,
+        destWidth,
+        destHeight
+      )
     return canvas
   }
 
   // Determines if the target image should be a canvas element:
-  loadImage.hasCanvasOption = function (options) {
+  loadImage.hasCanvasOption = function(options) {
     return options.canvas || options.crop || !!options.aspectRatio
   }
 
@@ -113,11 +113,13 @@
   // Returns a canvas object if the browser supports canvas
   // and the hasCanvasOption method returns true or a canvas
   // object is passed as image, else the scaled image:
-  loadImage.scale = function (img, options, data) {
+  loadImage.scale = function(img, options, data) {
+    // eslint-disable-next-line no-param-reassign
     options = options || {}
     var canvas = document.createElement('canvas')
-    var useCanvas = img.getContext ||
-                    (loadImage.hasCanvasOption(options) && canvas.getContext)
+    var useCanvas =
+      img.getContext ||
+      (loadImage.hasCanvasOption(options) && canvas.getContext)
     var width = img.naturalWidth || img.width
     var height = img.naturalHeight || img.height
     var destWidth = width
@@ -133,7 +135,10 @@
     var pixelRatio
     var downsamplingRatio
     var tmp
-    function scaleUp () {
+    /**
+     * Scales up image dimensions
+     */
+    function scaleUp() {
       var scale = Math.max(
         (minWidth || destWidth) / destWidth,
         (minHeight || destHeight) / destHeight
@@ -143,7 +148,10 @@
         destHeight *= scale
       }
     }
-    function scaleDown () {
+    /**
+     * Scales down image dimensions
+     */
+    function scaleDown() {
       var scale = Math.min(
         (maxWidth || destWidth) / destWidth,
         (maxHeight || destHeight) / destHeight
@@ -154,6 +162,7 @@
       }
     }
     if (useCanvas) {
+      // eslint-disable-next-line no-param-reassign
       options = loadImage.getTransformedOptions(img, options, data)
       sourceX = options.left || 0
       sourceY = options.top || 0
@@ -185,12 +194,12 @@
       destHeight = maxHeight
       tmp = sourceWidth / sourceHeight - maxWidth / maxHeight
       if (tmp < 0) {
-        sourceHeight = maxHeight * sourceWidth / maxWidth
+        sourceHeight = (maxHeight * sourceWidth) / maxWidth
         if (options.top === undefined && options.bottom === undefined) {
           sourceY = (height - sourceHeight) / 2
         }
       } else if (tmp > 0) {
-        sourceWidth = maxWidth * sourceHeight / maxHeight
+        sourceWidth = (maxWidth * sourceHeight) / maxHeight
         if (options.left === undefined && options.right === undefined) {
           sourceX = (width - sourceWidth) / 2
         }
@@ -218,8 +227,12 @@
         canvas.getContext('2d').scale(pixelRatio, pixelRatio)
       }
       downsamplingRatio = options.downsamplingRatio
-      if (downsamplingRatio > 0 && downsamplingRatio < 1 &&
-            destWidth < sourceWidth && destHeight < sourceHeight) {
+      if (
+        downsamplingRatio > 0 &&
+        downsamplingRatio < 1 &&
+        destWidth < sourceWidth &&
+        destHeight < sourceHeight
+      ) {
         while (sourceWidth * downsamplingRatio > destWidth) {
           canvas.width = sourceWidth * downsamplingRatio
           canvas.height = sourceHeight * downsamplingRatio
@@ -239,6 +252,7 @@
           sourceY = 0
           sourceWidth = canvas.width
           sourceHeight = canvas.height
+          // eslint-disable-next-line no-param-reassign
           img = document.createElement('canvas')
           img.width = sourceWidth
           img.height = sourceHeight
@@ -258,10 +272,7 @@
       }
       canvas.width = destWidth
       canvas.height = destHeight
-      loadImage.transformCoordinates(
-        canvas,
-        options
-      )
+      loadImage.transformCoordinates(canvas, options)
       return loadImage.renderImageToCanvas(
         canvas,
         img,
@@ -279,4 +290,4 @@
     img.height = destHeight
     return img
   }
-}))
+})
diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index a230944..0119c63 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -9,47 +9,61 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define, URL, webkitURL, FileReader */
+/* global define, webkitURL, module */
 
-;(function ($) {
+;(function($) {
   'use strict'
 
-  // Loads an image for a given File object.
-  // Invokes the callback with an img or optional canvas
-  // element (if supported by the browser) as parameter:
-  function loadImage (file, callback, options) {
+  /**
+   * Loads an image for a given File object.
+   * Invokes the callback with an img or optional canvas element
+   * (if supported by the browser) as parameter:.
+   *
+   * @param {File|Blob|string} file File or Blob object or image URL
+   * @param {Function} [callback] Image load event callback
+   * @param {object} [options] Options object
+   * @returns {HTMLImageElement|HTMLCanvasElement|FileReader} image object
+   */
+  function loadImage(file, callback, options) {
     var img = document.createElement('img')
     var url
-    img.onerror = function (event) {
+    img.onerror = function(event) {
       return loadImage.onerror(img, event, file, callback, options)
     }
-    img.onload = function (event) {
+    img.onload = function(event) {
       return loadImage.onload(img, event, file, callback, options)
     }
     if (typeof file === 'string') {
-      loadImage.fetchBlob(file, function (blob) {
-        if (blob) {
-          file = blob
-          url = loadImage.createObjectURL(file)
-        } else {
-          url = file
-          if (options && options.crossOrigin) {
-            img.crossOrigin = options.crossOrigin
+      loadImage.fetchBlob(
+        file,
+        function(blob) {
+          if (blob) {
+            // eslint-disable-next-line no-param-reassign
+            file = blob
+            url = loadImage.createObjectURL(file)
+          } else {
+            url = file
+            if (options && options.crossOrigin) {
+              img.crossOrigin = options.crossOrigin
+            }
           }
-        }
-        img.src = url
-      }, options)
+          img.src = url
+        },
+        options
+      )
       return img
-    } else if (loadImage.isInstanceOf('Blob', file) ||
-        // Files are also Blob instances, but some browsers
-        // (Firefox 3.6) support the File API but not Blobs:
-        loadImage.isInstanceOf('File', file)) {
+    } else if (
+      loadImage.isInstanceOf('Blob', file) ||
+      // Files are also Blob instances, but some browsers
+      // (Firefox 3.6) support the File API but not Blobs:
+      loadImage.isInstanceOf('File', file)
+    ) {
       url = img._objectURL = loadImage.createObjectURL(file)
       if (url) {
         img.src = url
         return img
       }
-      return loadImage.readFile(file, function (e) {
+      return loadImage.readFile(file, function(e) {
         var target = e.target
         if (target && target.result) {
           img.src = target.result
@@ -61,11 +75,18 @@
   }
   // The check for URL.revokeObjectURL fixes an issue with Opera 12,
   // which provides URL.createObjectURL but doesn't properly implement it:
-  var urlAPI = ($.createObjectURL && $) ||
-                ($.URL && URL.revokeObjectURL && URL) ||
-                ($.webkitURL && webkitURL)
+  var urlAPI =
+    ($.createObjectURL && $) ||
+    ($.URL && URL.revokeObjectURL && URL) ||
+    ($.webkitURL && webkitURL)
 
-  function revokeHelper (img, options) {
+  /**
+   * Helper function to revoke an object URL
+   *
+   * @param {HTMLImageElement} img Image element
+   * @param {object} [options] Options object
+   */
+  function revokeHelper(img, options) {
     if (img._objectURL && !(options && options.noRevoke)) {
       loadImage.revokeObjectURL(img._objectURL)
       delete img._objectURL
@@ -75,48 +96,52 @@
   // If the callback given to this function returns a blob, it is used as image
   // source instead of the original url and overrides the file argument used in
   // the onload and onerror event callbacks:
-  loadImage.fetchBlob = function (url, callback, options) {
+  loadImage.fetchBlob = function(url, callback) {
     callback()
   }
 
-  loadImage.isInstanceOf = function (type, obj) {
+  loadImage.isInstanceOf = function(type, obj) {
     // Cross-frame instanceof check
     return Object.prototype.toString.call(obj) === '[object ' + type + ']'
   }
 
-  loadImage.transform = function (img, options, callback, file, data) {
+  loadImage.transform = function(img, options, callback, file, data) {
     callback(img, data)
   }
 
-  loadImage.onerror = function (img, event, file, callback, options) {
+  loadImage.onerror = function(img, event, file, callback, options) {
     revokeHelper(img, options)
     if (callback) {
       callback.call(img, event)
     }
   }
 
-  loadImage.onload = function (img, event, file, callback, options) {
+  loadImage.onload = function(img, event, file, callback, options) {
     revokeHelper(img, options)
     if (callback) {
-      loadImage.transform(img, options, callback, file, {})
+      loadImage.transform(img, options, callback, file, {
+        originalWidth: img.naturalWidth || img.width,
+        originalHeight: img.naturalHeight || img.height
+      })
     }
   }
 
-  loadImage.createObjectURL = function (file) {
+  loadImage.createObjectURL = function(file) {
     return urlAPI ? urlAPI.createObjectURL(file) : false
   }
 
-  loadImage.revokeObjectURL = function (url) {
+  loadImage.revokeObjectURL = function(url) {
     return urlAPI ? urlAPI.revokeObjectURL(url) : false
   }
 
   // Loads a given File object via FileReader interface,
   // invokes the callback with the event object (load or error).
   // The result can be read via event.target.result:
-  loadImage.readFile = function (file, callback, method) {
+  loadImage.readFile = function(file, callback, method) {
     if ($.FileReader) {
       var fileReader = new FileReader()
       fileReader.onload = fileReader.onerror = callback
+      // eslint-disable-next-line no-param-reassign
       method = method || 'readAsDataURL'
       if (fileReader[method]) {
         fileReader[method](file)
@@ -127,7 +152,7 @@
   }
 
   if (typeof define === 'function' && define.amd) {
-    define(function () {
+    define(function() {
       return loadImage
     })
   } else if (typeof module === 'object' && module.exports) {
@@ -135,4 +160,4 @@
   } else {
     $.loadImage = loadImage
   }
-}(this))
+})((typeof window !== 'undefined' && window) || this)
diff --git a/test/vendor/mocha.js b/test/vendor/mocha.js
index a1ec48f..508a306 100644
--- a/test/vendor/mocha.js
+++ b/test/vendor/mocha.js
@@ -1,12 +1,15 @@
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
 (function (process,global){
+'use strict';
+
 /* eslint no-unused-vars: off */
+/* eslint-env commonjs */
 
 /**
  * Shim process.stdout.
  */
 
-process.stdout = require('browser-stdout')();
+process.stdout = require('browser-stdout')({label: false});
 
 var Mocha = require('./lib/mocha');
 
@@ -16,7 +19,7 @@ var Mocha = require('./lib/mocha');
  * @return {undefined}
  */
 
-var mocha = new Mocha({ reporter: 'html' });
+var mocha = new Mocha({reporter: 'html'});
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
@@ -44,7 +47,7 @@ process.removeListener = function(e, fn) {
     } else {
       global.onerror = function() {};
     }
-    var i = Mocha.utils.indexOf(uncaughtExceptionHandlers, fn);
+    var i = uncaughtExceptionHandlers.indexOf(fn);
     if (i !== -1) {
       uncaughtExceptionHandlers.splice(i, 1);
     }
@@ -75,7 +78,7 @@ var immediateTimeout;
 
 function timeslice() {
   var immediateStart = new Date().getTime();
-  while (immediateQueue.length && (new Date().getTime() - immediateStart) < 100) {
+  while (immediateQueue.length && new Date().getTime() - immediateStart < 100) {
     immediateQueue.shift()();
   }
   if (immediateQueue.length) {
@@ -102,7 +105,7 @@ Mocha.Runner.immediately = function(callback) {
  * only receive the 'message' attribute of the Error.
  */
 mocha.throwError = function(err) {
-  Mocha.utils.forEach(uncaughtExceptionHandlers, function(fn) {
+  uncaughtExceptionHandlers.forEach(function(fn) {
     fn(err);
   });
   throw err;
@@ -125,7 +128,7 @@ mocha.ui = function(ui) {
 
 mocha.setup = function(opts) {
   if (typeof opts === 'string') {
-    opts = { ui: opts };
+    opts = {ui: opts};
   }
   for (var opt in opts) {
     if (opts.hasOwnProperty(opt)) {
@@ -157,7 +160,11 @@ mocha.run = function(fn) {
   return Mocha.prototype.run.call(mocha, function(err) {
     // The DOM Document is not available in Web Workers.
     var document = global.document;
-    if (document && document.getElementById('mocha') && options.noHighlighting !== true) {
+    if (
+      document &&
+      document.getElementById('mocha') &&
+      options.noHighlighting !== true
+    ) {
       Mocha.utils.highlightTags('code');
     }
     if (fn) {
@@ -186,208 +193,181 @@ global.mocha = mocha;
 module.exports = global;
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./lib/mocha":14,"_process":67,"browser-stdout":41}],2:[function(require,module,exports){
-/* eslint-disable no-unused-vars */
-module.exports = function(type) {
-  return function() {};
-};
-
-},{}],3:[function(require,module,exports){
-/**
- * Module exports.
- */
-
-exports.EventEmitter = EventEmitter;
-
-/**
- * Object#toString reference.
- */
-var objToString = Object.prototype.toString;
+},{"./lib/mocha":14,"_process":69,"browser-stdout":41}],2:[function(require,module,exports){
+(function (process,global){
+'use strict';
 
 /**
- * Check if a value is an array.
- *
- * @api private
- * @param {*} val The value to test.
- * @return {boolean} true if the value is an array, otherwise false.
+ * Web Notifications module.
+ * @module Growl
  */
-function isArray(val) {
-  return objToString.call(val) === '[object Array]';
-}
 
 /**
- * Event emitter constructor.
- *
- * @api public
+ * Save timer references to avoid Sinon interfering (see GH-237).
  */
-function EventEmitter() {}
+var Date = global.Date;
+var setTimeout = global.setTimeout;
+var EVENT_RUN_END = require('../runner').constants.EVENT_RUN_END;
 
 /**
- * Add a listener.
+ * Checks if browser notification support exists.
  *
- * @api public
- * @param {string} name Event name.
- * @param {Function} fn Event handler.
- * @return {EventEmitter} Emitter instance.
+ * @public
+ * @see {@link https://caniuse.com/#feat=notifications|Browser support (notifications)}
+ * @see {@link https://caniuse.com/#feat=promises|Browser support (promises)}
+ * @see {@link Mocha#growl}
+ * @see {@link Mocha#isGrowlCapable}
+ * @return {boolean} whether browser notification support exists
  */
-EventEmitter.prototype.on = function(name, fn) {
-  if (!this.$events) {
-    this.$events = {};
-  }
-
-  if (!this.$events[name]) {
-    this.$events[name] = fn;
-  } else if (isArray(this.$events[name])) {
-    this.$events[name].push(fn);
-  } else {
-    this.$events[name] = [this.$events[name], fn];
-  }
-
-  return this;
+exports.isCapable = function() {
+  var hasNotificationSupport = 'Notification' in window;
+  var hasPromiseSupport = typeof Promise === 'function';
+  return process.browser && hasNotificationSupport && hasPromiseSupport;
 };
 
-EventEmitter.prototype.addListener = EventEmitter.prototype.on;
-
 /**
- * Adds a volatile listener.
- *
- * @api public
- * @param {string} name Event name.
- * @param {Function} fn Event handler.
- * @return {EventEmitter} Emitter instance.
- */
-EventEmitter.prototype.once = function(name, fn) {
-  var self = this;
-
-  function on() {
-    self.removeListener(name, on);
-    fn.apply(this, arguments);
-  }
-
-  on.listener = fn;
-  this.on(name, on);
+ * Implements browser notifications as a pseudo-reporter.
+ *
+ * @public
+ * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/notification|Notification API}
+ * @see {@link https://developers.google.com/web/fundamentals/push-notifications/display-a-notification|Displaying a Notification}
+ * @see {@link Growl#isPermitted}
+ * @see {@link Mocha#_growl}
+ * @param {Runner} runner - Runner instance.
+ */
+exports.notify = function(runner) {
+  var promise = isPermitted();
+
+  /**
+   * Attempt notification.
+   */
+  var sendNotification = function() {
+    // If user hasn't responded yet... "No notification for you!" (Seinfeld)
+    Promise.race([promise, Promise.resolve(undefined)])
+      .then(canNotify)
+      .then(function() {
+        display(runner);
+      })
+      .catch(notPermitted);
+  };
 
-  return this;
+  runner.once(EVENT_RUN_END, sendNotification);
 };
 
 /**
- * Remove a listener.
+ * Checks if browser notification is permitted by user.
  *
- * @api public
- * @param {string} name Event name.
- * @param {Function} fn Event handler.
- * @return {EventEmitter} Emitter instance.
- */
-EventEmitter.prototype.removeListener = function(name, fn) {
-  if (this.$events && this.$events[name]) {
-    var list = this.$events[name];
-
-    if (isArray(list)) {
-      var pos = -1;
-
-      for (var i = 0, l = list.length; i < l; i++) {
-        if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
-          pos = i;
-          break;
-        }
-      }
-
-      if (pos < 0) {
-        return this;
-      }
-
-      list.splice(pos, 1);
-
-      if (!list.length) {
-        delete this.$events[name];
-      }
-    } else if (list === fn || (list.listener && list.listener === fn)) {
-      delete this.$events[name];
+ * @private
+ * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/Notification/permission|Notification.permission}
+ * @see {@link Mocha#growl}
+ * @see {@link Mocha#isGrowlPermitted}
+ * @returns {Promise<boolean>} promise determining if browser notification
+ *     permissible when fulfilled.
+ */
+function isPermitted() {
+  var permitted = {
+    granted: function allow() {
+      return Promise.resolve(true);
+    },
+    denied: function deny() {
+      return Promise.resolve(false);
+    },
+    default: function ask() {
+      return Notification.requestPermission().then(function(permission) {
+        return permission === 'granted';
+      });
     }
-  }
+  };
 
-  return this;
-};
+  return permitted[Notification.permission]();
+}
 
 /**
- * Remove all listeners for an event.
+ * @summary
+ * Determines if notification should proceed.
  *
- * @api public
- * @param {string} name Event name.
- * @return {EventEmitter} Emitter instance.
+ * @description
+ * Notification shall <strong>not</strong> proceed unless `value` is true.
+ *
+ * `value` will equal one of:
+ * <ul>
+ *   <li><code>true</code> (from `isPermitted`)</li>
+ *   <li><code>false</code> (from `isPermitted`)</li>
+ *   <li><code>undefined</code> (from `Promise.race`)</li>
+ * </ul>
+ *
+ * @private
+ * @param {boolean|undefined} value - Determines if notification permissible.
+ * @returns {Promise<undefined>} Notification can proceed
  */
-EventEmitter.prototype.removeAllListeners = function(name) {
-  if (name === undefined) {
-    this.$events = {};
-    return this;
+function canNotify(value) {
+  if (!value) {
+    var why = value === false ? 'blocked' : 'unacknowledged';
+    var reason = 'not permitted by user (' + why + ')';
+    return Promise.reject(new Error(reason));
   }
-
-  if (this.$events && this.$events[name]) {
-    this.$events[name] = null;
-  }
-
-  return this;
-};
+  return Promise.resolve();
+}
 
 /**
- * Get all listeners for a given event.
+ * Displays the notification.
  *
- * @api public
- * @param {string} name Event name.
- * @return {EventEmitter} Emitter instance.
+ * @private
+ * @param {Runner} runner - Runner instance.
  */
-EventEmitter.prototype.listeners = function(name) {
-  if (!this.$events) {
-    this.$events = {};
-  }
-
-  if (!this.$events[name]) {
-    this.$events[name] = [];
-  }
+function display(runner) {
+  var stats = runner.stats;
+  var symbol = {
+    cross: '\u274C',
+    tick: '\u2705'
+  };
+  var logo = require('../../package').notifyLogo;
+  var _message;
+  var message;
+  var title;
 
-  if (!isArray(this.$events[name])) {
-    this.$events[name] = [this.$events[name]];
-  }
+  if (stats.failures) {
+    _message = stats.failures + ' of ' + stats.tests + ' tests failed';
+    message = symbol.cross + ' ' + _message;
+    title = 'Failed';
+  } else {
+    _message = stats.passes + ' tests passed in ' + stats.duration + 'ms';
+    message = symbol.tick + ' ' + _message;
+    title = 'Passed';
+  }
+
+  // Send notification
+  var options = {
+    badge: logo,
+    body: message,
+    dir: 'ltr',
+    icon: logo,
+    lang: 'en-US',
+    name: 'mocha',
+    requireInteraction: false,
+    timestamp: Date.now()
+  };
+  var notification = new Notification(title, options);
 
-  return this.$events[name];
-};
+  // Autoclose after brief delay (makes various browsers act same)
+  var FORCE_DURATION = 4000;
+  setTimeout(notification.close.bind(notification), FORCE_DURATION);
+}
 
 /**
- * Emit an event.
+ * As notifications are tangential to our purpose, just log the error.
  *
- * @api public
- * @param {string} name Event name.
- * @return {boolean} true if at least one handler was invoked, else false.
+ * @private
+ * @param {Error} err - Why notification didn't happen.
  */
-EventEmitter.prototype.emit = function(name) {
-  if (!this.$events) {
-    return false;
-  }
-
-  var handler = this.$events[name];
-
-  if (!handler) {
-    return false;
-  }
-
-  var args = Array.prototype.slice.call(arguments, 1);
-
-  if (typeof handler === 'function') {
-    handler.apply(this, args);
-  } else if (isArray(handler)) {
-    var listeners = handler.slice();
-
-    for (var i = 0, l = listeners.length; i < l; i++) {
-      listeners[i].apply(this, args);
-    }
-  } else {
-    return false;
-  }
+function notPermitted(err) {
+  console.error('notification error:', err.message);
+}
 
-  return true;
-};
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"../../package":90,"../runner":34,"_process":69}],3:[function(require,module,exports){
+'use strict';
 
-},{}],4:[function(require,module,exports){
 /**
  * Expose `Progress`.
  */
@@ -407,7 +387,7 @@ function Progress() {
 /**
  * Set progress size to `size`.
  *
- * @api public
+ * @public
  * @param {number} size
  * @return {Progress} Progress instance.
  */
@@ -419,7 +399,7 @@ Progress.prototype.size = function(size) {
 /**
  * Set text to `text`.
  *
- * @api public
+ * @public
  * @param {string} text
  * @return {Progress} Progress instance.
  */
@@ -431,7 +411,7 @@ Progress.prototype.text = function(text) {
 /**
  * Set font size to `size`.
  *
- * @api public
+ * @public
  * @param {number} size
  * @return {Progress} Progress instance.
  */
@@ -500,14 +480,16 @@ Progress.prototype.draw = function(ctx) {
     var w = ctx.measureText(text).width;
 
     ctx.fillText(text, x - w / 2 + 1, y + fontSize / 2 - 1);
-  } catch (err) {
+  } catch (ignore) {
     // don't fail if we can't render progress
   }
   return this;
 };
 
-},{}],5:[function(require,module,exports){
+},{}],4:[function(require,module,exports){
 (function (global){
+'use strict';
+
 exports.isatty = function isatty() {
   return true;
 };
@@ -521,13 +503,11 @@ exports.getWindowSize = function getWindowSize() {
 };
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],6:[function(require,module,exports){
+},{}],5:[function(require,module,exports){
+'use strict';
 /**
- * Module dependencies.
+ * @module Context
  */
-
-var JSON = require('json3');
-
 /**
  * Expose `Context`.
  */
@@ -537,16 +517,16 @@ module.exports = Context;
 /**
  * Initialize a new `Context`.
  *
- * @api private
+ * @private
  */
 function Context() {}
 
 /**
  * Set or get the context `Runnable` to `runnable`.
  *
- * @api private
+ * @private
  * @param {Runnable} runnable
- * @return {Context}
+ * @return {Context} context
  */
 Context.prototype.runnable = function(runnable) {
   if (!arguments.length) {
@@ -557,9 +537,9 @@ Context.prototype.runnable = function(runnable) {
 };
 
 /**
- * Set test timeout `ms`.
+ * Set or get test timeout `ms`.
  *
- * @api private
+ * @private
  * @param {number} ms
  * @return {Context} self
  */
@@ -574,23 +554,29 @@ Context.prototype.timeout = function(ms) {
 /**
  * Set test timeout `enabled`.
  *
- * @api private
+ * @private
  * @param {boolean} enabled
  * @return {Context} self
  */
 Context.prototype.enableTimeouts = function(enabled) {
+  if (!arguments.length) {
+    return this.runnable().enableTimeouts();
+  }
   this.runnable().enableTimeouts(enabled);
   return this;
 };
 
 /**
- * Set test slowness threshold `ms`.
+ * Set or get test slowness threshold `ms`.
  *
- * @api private
+ * @private
  * @param {number} ms
  * @return {Context} self
  */
 Context.prototype.slow = function(ms) {
+  if (!arguments.length) {
+    return this.runnable().slow();
+  }
   this.runnable().slow(ms);
   return this;
 };
@@ -598,18 +584,17 @@ Context.prototype.slow = function(ms) {
 /**
  * Mark a test as skipped.
  *
- * @api private
- * @return {Context} self
+ * @private
+ * @throws Pending
  */
 Context.prototype.skip = function() {
   this.runnable().skip();
-  return this;
 };
 
 /**
- * Allow a number of retries on failed tests
+ * Set or get a number of allowed retries on failed tests
  *
- * @api private
+ * @private
  * @param {number} n
  * @return {Context} self
  */
@@ -621,22 +606,151 @@ Context.prototype.retries = function(n) {
   return this;
 };
 
+},{}],6:[function(require,module,exports){
+'use strict';
+/**
+ * @module Errors
+ */
+/**
+ * Factory functions to create throwable error objects
+ */
+
 /**
- * Inspect the context void of `._runnable`.
+ * Creates an error object to be thrown when no files to be tested could be found using specified pattern.
  *
- * @api private
- * @return {string}
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @param {string} pattern - User-specified argument value.
+ * @returns {Error} instance detailing the error condition
  */
-Context.prototype.inspect = function() {
-  return JSON.stringify(this, function(key, val) {
-    return key === 'runnable' || key === 'test' ? undefined : val;
-  }, 2);
-};
+function createNoFilesMatchPatternError(message, pattern) {
+  var err = new Error(message);
+  err.code = 'ERR_MOCHA_NO_FILES_MATCH_PATTERN';
+  err.pattern = pattern;
+  return err;
+}
 
-},{"json3":54}],7:[function(require,module,exports){
 /**
- * Module dependencies.
+ * Creates an error object to be thrown when the reporter specified in the options was not found.
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @param {string} reporter - User-specified reporter value.
+ * @returns {Error} instance detailing the error condition
+ */
+function createInvalidReporterError(message, reporter) {
+  var err = new TypeError(message);
+  err.code = 'ERR_MOCHA_INVALID_REPORTER';
+  err.reporter = reporter;
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when the interface specified in the options was not found.
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @param {string} ui - User-specified interface value.
+ * @returns {Error} instance detailing the error condition
+ */
+function createInvalidInterfaceError(message, ui) {
+  var err = new Error(message);
+  err.code = 'ERR_MOCHA_INVALID_INTERFACE';
+  err.interface = ui;
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when a behavior, option, or parameter is unsupported.
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @returns {Error} instance detailing the error condition
+ */
+function createUnsupportedError(message) {
+  var err = new Error(message);
+  err.code = 'ERR_MOCHA_UNSUPPORTED';
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when an argument is missing.
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @param {string} argument - Argument name.
+ * @param {string} expected - Expected argument datatype.
+ * @returns {Error} instance detailing the error condition
+ */
+function createMissingArgumentError(message, argument, expected) {
+  return createInvalidArgumentTypeError(message, argument, expected);
+}
+
+/**
+ * Creates an error object to be thrown when an argument did not use the supported type
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @param {string} argument - Argument name.
+ * @param {string} expected - Expected argument datatype.
+ * @returns {Error} instance detailing the error condition
+ */
+function createInvalidArgumentTypeError(message, argument, expected) {
+  var err = new TypeError(message);
+  err.code = 'ERR_MOCHA_INVALID_ARG_TYPE';
+  err.argument = argument;
+  err.expected = expected;
+  err.actual = typeof argument;
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when an argument did not use the supported value
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @param {string} argument - Argument name.
+ * @param {string} value - Argument value.
+ * @param {string} [reason] - Why value is invalid.
+ * @returns {Error} instance detailing the error condition
+ */
+function createInvalidArgumentValueError(message, argument, value, reason) {
+  var err = new TypeError(message);
+  err.code = 'ERR_MOCHA_INVALID_ARG_VALUE';
+  err.argument = argument;
+  err.value = value;
+  err.reason = typeof reason !== 'undefined' ? reason : 'is invalid';
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when an exception was caught, but the `Error` is falsy or undefined.
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @returns {Error} instance detailing the error condition
  */
+function createInvalidExceptionError(message, value) {
+  var err = new Error(message);
+  err.code = 'ERR_MOCHA_INVALID_EXCEPTION';
+  err.valueType = typeof value;
+  err.value = value;
+  return err;
+}
+
+module.exports = {
+  createInvalidArgumentTypeError: createInvalidArgumentTypeError,
+  createInvalidArgumentValueError: createInvalidArgumentValueError,
+  createInvalidExceptionError: createInvalidExceptionError,
+  createInvalidInterfaceError: createInvalidInterfaceError,
+  createInvalidReporterError: createInvalidReporterError,
+  createMissingArgumentError: createMissingArgumentError,
+  createNoFilesMatchPatternError: createNoFilesMatchPatternError,
+  createUnsupportedError: createUnsupportedError
+};
+
+},{}],7:[function(require,module,exports){
+'use strict';
 
 var Runnable = require('./runnable');
 var inherits = require('./utils').inherits;
@@ -648,11 +762,12 @@ var inherits = require('./utils').inherits;
 module.exports = Hook;
 
 /**
- * Initialize a new `Hook` with the given `title` and callback `fn`.
+ * Initialize a new `Hook` with the given `title` and callback `fn`
  *
+ * @class
+ * @extends Runnable
  * @param {String} title
  * @param {Function} fn
- * @api private
  */
 function Hook(title, fn) {
   Runnable.call(this, title, fn);
@@ -667,9 +782,10 @@ inherits(Hook, Runnable);
 /**
  * Get or set the test `err`.
  *
+ * @memberof Hook
+ * @public
  * @param {Error} err
  * @return {Error}
- * @api public
  */
 Hook.prototype.error = function(err) {
   if (!arguments.length) {
@@ -682,11 +798,11 @@ Hook.prototype.error = function(err) {
 };
 
 },{"./runnable":33,"./utils":38}],8:[function(require,module,exports){
-/**
- * Module dependencies.
- */
+'use strict';
 
 var Test = require('../test');
+var EVENT_FILE_PRE_REQUIRE = require('../suite').constants
+  .EVENT_FILE_PRE_REQUIRE;
 
 /**
  * BDD-style interface:
@@ -705,10 +821,10 @@ var Test = require('../test');
  *
  * @param {Suite} suite Root suite.
  */
-module.exports = function(suite) {
+module.exports = function bddInterface(suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on(EVENT_FILE_PRE_REQUIRE, function(context, file, mocha) {
     var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;
@@ -734,7 +850,10 @@ module.exports = function(suite) {
      * Pending describe.
      */
 
-    context.xdescribe = context.xcontext = context.describe.skip = function(title, fn) {
+    context.xdescribe = context.xcontext = context.describe.skip = function(
+      title,
+      fn
+    ) {
       return common.suite.skip({
         title: title,
         file: file,
@@ -784,7 +903,7 @@ module.exports = function(suite) {
      */
 
     context.xit = context.xspecify = context.it.skip = function(title) {
-      context.it(title);
+      return context.it(title);
     };
 
     /**
@@ -796,10 +915,14 @@ module.exports = function(suite) {
   });
 };
 
-},{"../test":36,"./common":9}],9:[function(require,module,exports){
+module.exports.description = 'BDD or RSpec style [default]';
+
+},{"../suite":36,"../test":37,"./common":9}],9:[function(require,module,exports){
 'use strict';
 
 var Suite = require('../suite');
+var errors = require('../errors');
+var createMissingArgumentError = errors.createMissingArgumentError;
 
 /**
  * Functions common to more than one interface.
@@ -810,12 +933,28 @@ var Suite = require('../suite');
  * @return {Object} An object containing common functions.
  */
 module.exports = function(suites, context, mocha) {
+  /**
+   * Check if the suite should be tested.
+   *
+   * @private
+   * @param {Suite} suite - suite to check
+   * @returns {boolean}
+   */
+  function shouldBeTested(suite) {
+    return (
+      !mocha.options.grep ||
+      (mocha.options.grep &&
+        mocha.options.grep.test(suite.fullTitle()) &&
+        !mocha.options.invert)
+    );
+  }
+
   return {
     /**
      * This is only present if flag --delay is passed into Mocha. It triggers
      * root suite execution.
      *
-     * @param {Suite} suite The root wuite.
+     * @param {Suite} suite The root suite.
      * @return {Function} A function which runs the root suite
      */
     runWithSuite: function runWithSuite(suite) {
@@ -873,7 +1012,6 @@ module.exports = function(suites, context, mocha) {
        * @returns {Suite}
        */
       only: function only(opts) {
-        mocha.options.hasOnly = true;
         opts.isOnly = true;
         return this.create(opts);
       },
@@ -892,6 +1030,7 @@ module.exports = function(suites, context, mocha) {
 
       /**
        * Creates a suite.
+       *
        * @param {Object} opts Options
        * @param {string} opts.title Title of Suite
        * @param {Function} [opts.fn] Suite Function (not always applicable)
@@ -906,14 +1045,31 @@ module.exports = function(suites, context, mocha) {
         suite.file = opts.file;
         suites.unshift(suite);
         if (opts.isOnly) {
-          suite.parent._onlySuites = suite.parent._onlySuites.concat(suite);
-          mocha.options.hasOnly = true;
+          if (mocha.options.forbidOnly && shouldBeTested(suite)) {
+            throw new Error('`.only` forbidden');
+          }
+
+          suite.parent.appendOnlySuite(suite);
+        }
+        if (suite.pending) {
+          if (mocha.options.forbidPending && shouldBeTested(suite)) {
+            throw new Error('Pending test forbidden');
+          }
         }
         if (typeof opts.fn === 'function') {
           opts.fn.call(suite);
           suites.shift();
         } else if (typeof opts.fn === 'undefined' && !suite.pending) {
-          throw new Error('Suite "' + suite.fullTitle() + '" was defined but no callback was supplied. Supply a callback or explicitly skip the suite.');
+          throw createMissingArgumentError(
+            'Suite "' +
+              suite.fullTitle() +
+              '" was defined but no callback was supplied. ' +
+              'Supply a callback or explicitly skip the suite.',
+            'callback',
+            'function'
+          );
+        } else if (!opts.fn && suite.pending) {
+          suites.shift();
         }
 
         return suite;
@@ -921,7 +1077,6 @@ module.exports = function(suites, context, mocha) {
     },
 
     test: {
-
       /**
        * Exclusive test-case.
        *
@@ -930,8 +1085,7 @@ module.exports = function(suites, context, mocha) {
        * @returns {*}
        */
       only: function(mocha, test) {
-        test.parent._onlyTests = test.parent._onlyTests.concat(test);
-        mocha.options.hasOnly = true;
+        test.parent.appendOnlyTest(test);
         return test;
       },
 
@@ -956,11 +1110,8 @@ module.exports = function(suites, context, mocha) {
   };
 };
 
-},{"../suite":35}],10:[function(require,module,exports){
-/**
- * Module dependencies.
- */
-
+},{"../errors":6,"../suite":36}],10:[function(require,module,exports){
+'use strict';
 var Suite = require('../suite');
 var Test = require('../test');
 
@@ -984,7 +1135,7 @@ var Test = require('../test');
 module.exports = function(suite) {
   var suites = [suite];
 
-  suite.on('require', visit);
+  suite.on(Suite.constants.EVENT_FILE_REQUIRE, visit);
 
   function visit(obj, file) {
     var suite;
@@ -1019,18 +1170,22 @@ module.exports = function(suite) {
   }
 };
 
-},{"../suite":35,"../test":36}],11:[function(require,module,exports){
+module.exports.description = 'Node.js module ("exports") style';
+
+},{"../suite":36,"../test":37}],11:[function(require,module,exports){
+'use strict';
+
 exports.bdd = require('./bdd');
 exports.tdd = require('./tdd');
 exports.qunit = require('./qunit');
 exports.exports = require('./exports');
 
 },{"./bdd":8,"./exports":10,"./qunit":12,"./tdd":13}],12:[function(require,module,exports){
-/**
- * Module dependencies.
- */
+'use strict';
 
 var Test = require('../test');
+var EVENT_FILE_PRE_REQUIRE = require('../suite').constants
+  .EVENT_FILE_PRE_REQUIRE;
 
 /**
  * QUnit-style interface:
@@ -1057,10 +1212,10 @@ var Test = require('../test');
  *
  * @param {Suite} suite Root suite.
  */
-module.exports = function(suite) {
+module.exports = function qUnitInterface(suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on(EVENT_FILE_PRE_REQUIRE, function(context, file, mocha) {
     var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;
@@ -1124,12 +1279,14 @@ module.exports = function(suite) {
   });
 };
 
-},{"../test":36,"./common":9}],13:[function(require,module,exports){
-/**
- * Module dependencies.
- */
+module.exports.description = 'QUnit style';
+
+},{"../suite":36,"../test":37,"./common":9}],13:[function(require,module,exports){
+'use strict';
 
 var Test = require('../test');
+var EVENT_FILE_PRE_REQUIRE = require('../suite').constants
+  .EVENT_FILE_PRE_REQUIRE;
 
 /**
  * TDD-style interface:
@@ -1159,7 +1316,7 @@ var Test = require('../test');
 module.exports = function(suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on(EVENT_FILE_PRE_REQUIRE, function(context, file, mocha) {
     var common = require('./common')(suites, context, mocha);
 
     context.setup = common.beforeEach;
@@ -1230,26 +1387,34 @@ module.exports = function(suite) {
   });
 };
 
-},{"../test":36,"./common":9}],14:[function(require,module,exports){
-(function (process,global,__dirname){
+module.exports.description =
+  'traditional "suite"/"test" instead of BDD\'s "describe"/"it"';
+
+},{"../suite":36,"../test":37,"./common":9}],14:[function(require,module,exports){
+(function (process,global){
+'use strict';
+
 /*!
  * mocha
  * Copyright(c) 2011 TJ Holowaychuk <tj@vision-media.ca>
  * MIT Licensed
  */
 
-/**
- * Module dependencies.
- */
-
 var escapeRe = require('escape-string-regexp');
 var path = require('path');
-var reporters = require('./reporters');
+var builtinReporters = require('./reporters');
+var growl = require('./growl');
 var utils = require('./utils');
-
-/**
- * Expose `Mocha`.
- */
+var mocharc = require('./mocharc.json');
+var errors = require('./errors');
+var Suite = require('./suite');
+var createStatsCollector = require('./stats-collector');
+var createInvalidReporterError = errors.createInvalidReporterError;
+var createInvalidInterfaceError = errors.createInvalidInterfaceError;
+var EVENT_FILE_PRE_REQUIRE = Suite.constants.EVENT_FILE_PRE_REQUIRE;
+var EVENT_FILE_POST_REQUIRE = Suite.constants.EVENT_FILE_POST_REQUIRE;
+var EVENT_FILE_REQUIRE = Suite.constants.EVENT_FILE_REQUIRE;
+var sQuote = utils.sQuote;
 
 exports = module.exports = Mocha;
 
@@ -1266,80 +1431,132 @@ if (!process.browser) {
  * Expose internals.
  */
 
+/**
+ * @public
+ * @class utils
+ * @memberof Mocha
+ */
 exports.utils = utils;
 exports.interfaces = require('./interfaces');
-exports.reporters = reporters;
+/**
+ * @public
+ * @memberof Mocha
+ */
+exports.reporters = builtinReporters;
 exports.Runnable = require('./runnable');
 exports.Context = require('./context');
-exports.Runner = require('./runner');
-exports.Suite = require('./suite');
-exports.Hook = require('./hook');
-exports.Test = require('./test');
-
 /**
- * Return image `name` path.
  *
- * @api private
- * @param {string} name
- * @return {string}
+ * @memberof Mocha
  */
-function image(name) {
-  return path.join(__dirname, '../images', name + '.png');
-}
+exports.Runner = require('./runner');
+exports.Suite = Suite;
+exports.Hook = require('./hook');
+exports.Test = require('./test');
 
 /**
- * Set up mocha with `options`.
- *
- * Options:
- *
- *   - `ui` name "bdd", "tdd", "exports" etc
- *   - `reporter` reporter instance, defaults to `mocha.reporters.spec`
- *   - `globals` array of accepted globals
- *   - `timeout` timeout in milliseconds
- *   - `retries` number of times to retry failed tests
- *   - `bail` bail on the first test failure
- *   - `slow` milliseconds to wait before considering a test slow
- *   - `ignoreLeaks` ignore global leaks
- *   - `fullTrace` display the full stack-trace on failing
- *   - `grep` string or regexp to filter tests with
- *
- * @param {Object} options
- * @api public
+ * Constructs a new Mocha instance with `options`.
+ *
+ * @public
+ * @class Mocha
+ * @param {Object} [options] - Settings object.
+ * @param {boolean} [options.allowUncaught] - Propagate uncaught errors?
+ * @param {boolean} [options.asyncOnly] - Force `done` callback or promise?
+ * @param {boolean} [options.bail] - Bail after first test failure?
+ * @param {boolean} [options.checkLeaks] - If true, check leaks.
+ * @param {boolean} [options.delay] - Delay root suite execution?
+ * @param {boolean} [options.enableTimeouts] - Enable timeouts?
+ * @param {string} [options.fgrep] - Test filter given string.
+ * @param {boolean} [options.forbidOnly] - Tests marked `only` fail the suite?
+ * @param {boolean} [options.forbidPending] - Pending tests fail the suite?
+ * @param {boolean} [options.fullStackTrace] - Full stacktrace upon failure?
+ * @param {string[]} [options.global] - Variables expected in global scope.
+ * @param {RegExp|string} [options.grep] - Test filter given regular expression.
+ * @param {boolean} [options.growl] - Enable desktop notifications?
+ * @param {boolean} [options.hideDiff] - Suppress diffs from failures?
+ * @param {boolean} [options.ignoreLeaks] - Ignore global leaks?
+ * @param {boolean} [options.invert] - Invert test filter matches?
+ * @param {boolean} [options.noHighlighting] - Disable syntax highlighting?
+ * @param {string} [options.reporter] - Reporter name.
+ * @param {Object} [options.reporterOption] - Reporter settings object.
+ * @param {number} [options.retries] - Number of times to retry failed tests.
+ * @param {number} [options.slow] - Slow threshold value.
+ * @param {number|string} [options.timeout] - Timeout threshold value.
+ * @param {string} [options.ui] - Interface name.
+ * @param {boolean} [options.color] - Color TTY output from reporter?
+ * @param {boolean} [options.useInlineDiffs] - Use inline diffs?
  */
 function Mocha(options) {
-  options = options || {};
+  options = utils.assign({}, mocharc, options || {});
   this.files = [];
   this.options = options;
-  if (options.grep) {
-    this.grep(new RegExp(options.grep));
+  // root suite
+  this.suite = new exports.Suite('', new exports.Context(), true);
+
+  if ('useColors' in options) {
+    utils.deprecate(
+      'useColors is DEPRECATED and will be removed from a future version of Mocha. Instead, use the "color" option'
+    );
+    options.color = 'color' in options ? options.color : options.useColors;
   }
-  if (options.fgrep) {
-    this.fgrep(options.fgrep);
+
+  this.grep(options.grep)
+    .fgrep(options.fgrep)
+    .ui(options.ui)
+    .bail(options.bail)
+    .reporter(options.reporter, options.reporterOptions)
+    .useColors(options.color)
+    .slow(options.slow)
+    .useInlineDiffs(options.inlineDiffs)
+    .globals(options.globals);
+
+  if ('enableTimeouts' in options) {
+    utils.deprecate(
+      'enableTimeouts is DEPRECATED and will be removed from a future version of Mocha. Instead, use "timeout: false" to disable timeouts.'
+    );
+    if (options.enableTimeouts === false) {
+      this.timeout(0);
+    }
   }
-  this.suite = new exports.Suite('', new exports.Context());
-  this.ui(options.ui);
-  this.bail(options.bail);
-  this.reporter(options.reporter, options.reporterOptions);
-  if (typeof options.timeout !== 'undefined' && options.timeout !== null) {
-    this.timeout(options.timeout);
+
+  // this guard exists because Suite#timeout does not consider `undefined` to be valid input
+  if (typeof options.timeout !== 'undefined') {
+    this.timeout(options.timeout === false ? 0 : options.timeout);
   }
-  if (typeof options.retries !== 'undefined' && options.retries !== null) {
+
+  if ('retries' in options) {
     this.retries(options.retries);
   }
-  this.useColors(options.useColors);
-  if (options.enableTimeouts !== null) {
-    this.enableTimeouts(options.enableTimeouts);
-  }
-  if (options.slow) {
-    this.slow(options.slow);
+
+  if ('diff' in options) {
+    this.hideDiff(!options.diff);
   }
+
+  [
+    'allowUncaught',
+    'asyncOnly',
+    'checkLeaks',
+    'delay',
+    'forbidOnly',
+    'forbidPending',
+    'fullTrace',
+    'growl',
+    'invert'
+  ].forEach(function(opt) {
+    if (options[opt]) {
+      this[opt]();
+    }
+  }, this);
 }
 
 /**
- * Enable or disable bailing on the first failure.
+ * Enables or disables bailing on the first failure.
  *
- * @api public
- * @param {boolean} [bail]
+ * @public
+ * @see {@link https://mochajs.org/#-b---bail|CLI option}
+ * @param {boolean} [bail=true] - Whether to bail on first error.
+ * @returns {Mocha} this
+ * @chainable
  */
 Mocha.prototype.bail = function(bail) {
   if (!arguments.length) {
@@ -1350,10 +1567,17 @@ Mocha.prototype.bail = function(bail) {
 };
 
 /**
- * Add test `file`.
+ * @summary
+ * Adds `file` to be loaded for execution.
  *
- * @api public
- * @param {string} file
+ * @description
+ * Useful for generic setup code that must be included within test suite.
+ *
+ * @public
+ * @see {@link https://mochajs.org/#--file-file|CLI option}
+ * @param {string} file - Pathname of file to be loaded.
+ * @returns {Mocha} this
+ * @chainable
  */
 Mocha.prototype.addFile = function(file) {
   this.files.push(file);
@@ -1361,13 +1585,20 @@ Mocha.prototype.addFile = function(file) {
 };
 
 /**
- * Set reporter to `reporter`, defaults to "spec".
+ * Sets reporter to `reporter`, defaults to "spec".
  *
- * @param {String|Function} reporter name or constructor
- * @param {Object} reporterOptions optional options
- * @api public
- * @param {string|Function} reporter name or constructor
- * @param {Object} reporterOptions optional options
+ * @public
+ * @see {@link https://mochajs.org/#-r---reporter-name|CLI option}
+ * @see {@link https://mochajs.org/#reporters|Reporters}
+ * @param {String|Function} reporter - Reporter name or constructor.
+ * @param {Object} [reporterOptions] - Options used to configure the reporter.
+ * @returns {Mocha} this
+ * @chainable
+ * @throws {Error} if requested reporter cannot be loaded
+ * @example
+ *
+ * // Use XUnit reporter and direct its output to file
+ * mocha.reporter('xunit', { output: '/path/to/testspec.xunit.xml' });
  */
 Mocha.prototype.reporter = function(reporter, reporterOptions) {
   if (typeof reporter === 'function') {
@@ -1376,26 +1607,43 @@ Mocha.prototype.reporter = function(reporter, reporterOptions) {
     reporter = reporter || 'spec';
     var _reporter;
     // Try to load a built-in reporter.
-    if (reporters[reporter]) {
-      _reporter = reporters[reporter];
+    if (builtinReporters[reporter]) {
+      _reporter = builtinReporters[reporter];
     }
     // Try to load reporters from process.cwd() and node_modules
     if (!_reporter) {
       try {
         _reporter = require(reporter);
       } catch (err) {
-        err.message.indexOf('Cannot find module') !== -1
-          ? console.warn('"' + reporter + '" reporter not found')
-          : console.warn('"' + reporter + '" reporter blew up with error:\n' + err.stack);
+        if (
+          err.code !== 'MODULE_NOT_FOUND' ||
+          err.message.indexOf('Cannot find module') !== -1
+        ) {
+          // Try to load reporters from a path (absolute or relative)
+          try {
+            _reporter = require(path.resolve(process.cwd(), reporter));
+          } catch (_err) {
+            _err.code !== 'MODULE_NOT_FOUND' ||
+            _err.message.indexOf('Cannot find module') !== -1
+              ? console.warn(sQuote(reporter) + ' reporter not found')
+              : console.warn(
+                  sQuote(reporter) +
+                    ' reporter blew up with error:\n' +
+                    err.stack
+                );
+          }
+        } else {
+          console.warn(
+            sQuote(reporter) + ' reporter blew up with error:\n' + err.stack
+          );
+        }
       }
     }
-    if (!_reporter && reporter === 'teamcity') {
-      console.warn('The Teamcity reporter was moved to a package named '
-        + 'mocha-teamcity-reporter '
-        + '(https://npmjs.org/package/mocha-teamcity-reporter).');
-    }
     if (!_reporter) {
-      throw new Error('invalid reporter "' + reporter + '"');
+      throw createInvalidReporterError(
+        'invalid reporter ' + sQuote(reporter),
+        reporter
+      );
     }
     this._reporter = _reporter;
   }
@@ -1404,30 +1652,44 @@ Mocha.prototype.reporter = function(reporter, reporterOptions) {
 };
 
 /**
- * Set test UI `name`, defaults to "bdd".
+ * Sets test UI `name`, defaults to "bdd".
  *
- * @api public
- * @param {string} bdd
+ * @public
+ * @see {@link https://mochajs.org/#-u---ui-name|CLI option}
+ * @see {@link https://mochajs.org/#interfaces|Interface DSLs}
+ * @param {string|Function} [ui=bdd] - Interface name or class.
+ * @returns {Mocha} this
+ * @chainable
+ * @throws {Error} if requested interface cannot be loaded
  */
-Mocha.prototype.ui = function(name) {
-  name = name || 'bdd';
-  this._ui = exports.interfaces[name];
-  if (!this._ui) {
-    try {
-      this._ui = require(name);
-    } catch (err) {
-      throw new Error('invalid interface "' + name + '"');
+Mocha.prototype.ui = function(ui) {
+  var bindInterface;
+  if (typeof ui === 'function') {
+    bindInterface = ui;
+  } else {
+    ui = ui || 'bdd';
+    bindInterface = exports.interfaces[ui];
+    if (!bindInterface) {
+      try {
+        bindInterface = require(ui);
+      } catch (err) {
+        throw createInvalidInterfaceError(
+          'invalid interface ' + sQuote(ui),
+          ui
+        );
+      }
     }
   }
-  this._ui = this._ui(this.suite);
+  bindInterface(this.suite);
 
-  this.suite.on('pre-require', function(context) {
+  this.suite.on(EVENT_FILE_PRE_REQUIRE, function(context) {
     exports.afterEach = context.afterEach || context.teardown;
     exports.after = context.after || context.suiteTeardown;
     exports.beforeEach = context.beforeEach || context.setup;
     exports.before = context.before || context.suiteSetup;
     exports.describe = context.describe || context.suite;
     exports.it = context.it || context.test;
+    exports.xit = context.xit || (context.test && context.test.skip);
     exports.setup = context.setup || context.beforeEach;
     exports.suiteSetup = context.suiteSetup || context.before;
     exports.suiteTeardown = context.suiteTeardown || context.after;
@@ -1441,64 +1703,116 @@ Mocha.prototype.ui = function(name) {
 };
 
 /**
- * Load registered files.
+ * Loads `files` prior to execution.
  *
- * @api private
+ * @description
+ * The implementation relies on Node's `require` to execute
+ * the test interface functions and will be subject to its cache.
+ *
+ * @private
+ * @see {@link Mocha#addFile}
+ * @see {@link Mocha#run}
+ * @see {@link Mocha#unloadFiles}
+ * @param {Function} [fn] - Callback invoked upon completion.
  */
 Mocha.prototype.loadFiles = function(fn) {
   var self = this;
   var suite = this.suite;
   this.files.forEach(function(file) {
     file = path.resolve(file);
-    suite.emit('pre-require', global, file, self);
-    suite.emit('require', require(file), file, self);
-    suite.emit('post-require', global, file, self);
+    suite.emit(EVENT_FILE_PRE_REQUIRE, global, file, self);
+    suite.emit(EVENT_FILE_REQUIRE, require(file), file, self);
+    suite.emit(EVENT_FILE_POST_REQUIRE, global, file, self);
   });
   fn && fn();
 };
 
 /**
- * Enable growl support.
+ * Removes a previously loaded file from Node's `require` cache.
  *
- * @api private
+ * @private
+ * @static
+ * @see {@link Mocha#unloadFiles}
+ * @param {string} file - Pathname of file to be unloaded.
  */
-Mocha.prototype._growl = function(runner, reporter) {
-  var notify = require('growl');
+Mocha.unloadFile = function(file) {
+  delete require.cache[require.resolve(file)];
+};
 
-  runner.on('end', function() {
-    var stats = reporter.stats;
-    if (stats.failures) {
-      var msg = stats.failures + ' of ' + runner.total + ' tests failed';
-      notify(msg, { name: 'mocha', title: 'Failed', image: image('error') });
-    } else {
-      notify(stats.passes + ' tests passed in ' + stats.duration + 'ms', {
-        name: 'mocha',
-        title: 'Passed',
-        image: image('ok')
-      });
-    }
-  });
+/**
+ * Unloads `files` from Node's `require` cache.
+ *
+ * @description
+ * This allows files to be "freshly" reloaded, providing the ability
+ * to reuse a Mocha instance programmatically.
+ *
+ * <strong>Intended for consumers &mdash; not used internally</strong>
+ *
+ * @public
+ * @see {@link Mocha.unloadFile}
+ * @see {@link Mocha#loadFiles}
+ * @see {@link Mocha#run}
+ * @returns {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.unloadFiles = function() {
+  this.files.forEach(Mocha.unloadFile);
+  return this;
 };
 
 /**
- * Escape string and add it to grep as a regexp.
+ * Sets `grep` filter after escaping RegExp special characters.
  *
- * @api public
- * @param str
- * @returns {Mocha}
+ * @public
+ * @see {@link Mocha#grep}
+ * @param {string} str - Value to be converted to a regexp.
+ * @returns {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Select tests whose full title begins with `"foo"` followed by a period
+ * mocha.fgrep('foo.');
  */
 Mocha.prototype.fgrep = function(str) {
+  if (!str) {
+    return this;
+  }
   return this.grep(new RegExp(escapeRe(str)));
 };
 
 /**
- * Add regexp to grep, if `re` is a string it is escaped.
+ * @summary
+ * Sets `grep` filter used to select specific tests for execution.
  *
- * @param {RegExp|String} re
- * @return {Mocha}
- * @api public
- * @param {RegExp|string} re
- * @return {Mocha}
+ * @description
+ * If `re` is a regexp-like string, it will be converted to regexp.
+ * The regexp is tested against the full title of each test (i.e., the
+ * name of the test preceded by titles of each its ancestral suites).
+ * As such, using an <em>exact-match</em> fixed pattern against the
+ * test name itself will not yield any matches.
+ * <br>
+ * <strong>Previous filter value will be overwritten on each call!</strong>
+ *
+ * @public
+ * @see {@link https://mochajs.org/#-g---grep-pattern|CLI option}
+ * @see {@link Mocha#fgrep}
+ * @see {@link Mocha#invert}
+ * @param {RegExp|String} re - Regular expression used to select tests.
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Select tests whose full title contains `"match"`, ignoring case
+ * mocha.grep(/match/i);
+ * @example
+ *
+ * // Same as above but with regexp-like string argument
+ * mocha.grep('/match/i');
+ * @example
+ *
+ * // ## Anti-example
+ * // Given embedded test `it('only-this-test')`...
+ * mocha.grep('/^only-this-test$/');    // NO! Use `.only()` to do this!
  */
 Mocha.prototype.grep = function(re) {
   if (utils.isString(re)) {
@@ -1510,11 +1824,18 @@ Mocha.prototype.grep = function(re) {
   }
   return this;
 };
+
 /**
- * Invert `.grep()` matches.
+ * Inverts `grep` matches.
  *
- * @return {Mocha}
- * @api public
+ * @public
+ * @see {@link Mocha#grep}
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Select tests whose full title does *not* contain `"match"`, ignoring case
+ * mocha.grep(/match/i).invert();
  */
 Mocha.prototype.invert = function() {
   this.options.invert = true;
@@ -1522,24 +1843,31 @@ Mocha.prototype.invert = function() {
 };
 
 /**
- * Ignore global leaks.
+ * Enables or disables ignoring global leaks.
  *
- * @param {Boolean} ignore
- * @return {Mocha}
- * @api public
- * @param {boolean} ignore
- * @return {Mocha}
+ * @public
+ * @see {@link Mocha#checkLeaks}
+ * @param {boolean} ignoreLeaks - Whether to ignore global leaks.
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Ignore global leaks
+ * mocha.ignoreLeaks(true);
  */
-Mocha.prototype.ignoreLeaks = function(ignore) {
-  this.options.ignoreLeaks = Boolean(ignore);
+Mocha.prototype.ignoreLeaks = function(ignoreLeaks) {
+  this.options.ignoreLeaks = Boolean(ignoreLeaks);
   return this;
 };
 
 /**
- * Enable global leak checking.
+ * Enables checking for global variables leaked while running tests.
  *
- * @return {Mocha}
- * @api public
+ * @public
+ * @see {@link https://mochajs.org/#--check-leaks|CLI option}
+ * @see {@link Mocha#ignoreLeaks}
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.checkLeaks = function() {
   this.options.ignoreLeaks = false;
@@ -1547,10 +1875,11 @@ Mocha.prototype.checkLeaks = function() {
 };
 
 /**
- * Display long stack-trace on failing
+ * Displays full stack trace upon test failure.
  *
- * @return {Mocha}
- * @api public
+ * @public
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.fullTrace = function() {
   this.options.fullStackTrace = true;
@@ -1558,38 +1887,77 @@ Mocha.prototype.fullTrace = function() {
 };
 
 /**
- * Enable growl support.
+ * Enables desktop notification support if prerequisite software installed.
  *
- * @return {Mocha}
- * @api public
+ * @public
+ * @see {@link Mocha#isGrowlCapable}
+ * @see {@link Mocha#_growl}
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.growl = function() {
-  this.options.growl = true;
+  this.options.growl = this.isGrowlCapable();
+  if (!this.options.growl) {
+    var detail = process.browser
+      ? 'notification support not available in this browser...'
+      : 'notification support prerequisites not installed...';
+    console.error(detail + ' cannot enable!');
+  }
   return this;
 };
 
 /**
- * Ignore `globals` array or string.
+ * @summary
+ * Determines if Growl support seems likely.
  *
- * @param {Array|String} globals
- * @return {Mocha}
- * @api public
- * @param {Array|string} globals
- * @return {Mocha}
+ * @description
+ * <strong>Not available when run in browser.</strong>
+ *
+ * @private
+ * @see {@link Growl#isCapable}
+ * @see {@link Mocha#growl}
+ * @return {boolean} whether Growl support can be expected
+ */
+Mocha.prototype.isGrowlCapable = growl.isCapable;
+
+/**
+ * Implements desktop notifications using a pseudo-reporter.
+ *
+ * @private
+ * @see {@link Mocha#growl}
+ * @see {@link Growl#notify}
+ * @param {Runner} runner - Runner instance.
+ */
+Mocha.prototype._growl = growl.notify;
+
+/**
+ * Specifies whitelist of variable names to be expected in global scope.
+ *
+ * @public
+ * @see {@link https://mochajs.org/#--globals-names|CLI option}
+ * @see {@link Mocha#checkLeaks}
+ * @param {String[]|String} globals - Accepted global variable name(s).
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Specify variables to be expected in global scope
+ * mocha.globals(['jQuery', 'MyLib']);
  */
 Mocha.prototype.globals = function(globals) {
-  this.options.globals = (this.options.globals || []).concat(globals);
+  this.options.globals = (this.options.globals || [])
+    .concat(globals)
+    .filter(Boolean);
   return this;
 };
 
 /**
- * Emit color output.
+ * Enables or disables TTY color output by screen-oriented reporters.
  *
- * @param {Boolean} colors
- * @return {Mocha}
- * @api public
- * @param {boolean} colors
- * @return {Mocha}
+ * @public
+ * @param {boolean} colors - Whether to enable color output.
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.useColors = function(colors) {
   if (colors !== undefined) {
@@ -1599,13 +1967,13 @@ Mocha.prototype.useColors = function(colors) {
 };
 
 /**
- * Use inline diffs rather than +/-.
+ * Determines if reporter should use inline diffs (rather than +/-)
+ * in test failure output.
  *
- * @param {Boolean} inlineDiffs
- * @return {Mocha}
- * @api public
- * @param {boolean} inlineDiffs
- * @return {Mocha}
+ * @public
+ * @param {boolean} inlineDiffs - Whether to use inline diffs.
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.useInlineDiffs = function(inlineDiffs) {
   this.options.useInlineDiffs = inlineDiffs !== undefined && inlineDiffs;
@@ -1613,25 +1981,60 @@ Mocha.prototype.useInlineDiffs = function(inlineDiffs) {
 };
 
 /**
- * Set the timeout in milliseconds.
+ * Determines if reporter should include diffs in test failure output.
  *
- * @param {Number} timeout
- * @return {Mocha}
- * @api public
- * @param {number} timeout
- * @return {Mocha}
+ * @public
+ * @param {boolean} hideDiff - Whether to hide diffs.
+ * @return {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.hideDiff = function(hideDiff) {
+  this.options.hideDiff = hideDiff !== undefined && hideDiff;
+  return this;
+};
+
+/**
+ * @summary
+ * Sets timeout threshold value.
+ *
+ * @description
+ * A string argument can use shorthand (such as "2s") and will be converted.
+ * If the value is `0`, timeouts will be disabled.
+ *
+ * @public
+ * @see {@link https://mochajs.org/#-t---timeout-ms|CLI option}
+ * @see {@link https://mochajs.org/#--no-timeouts|CLI option}
+ * @see {@link https://mochajs.org/#timeouts|Timeouts}
+ * @see {@link Mocha#enableTimeouts}
+ * @param {number|string} msecs - Timeout threshold value.
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Sets timeout to one second
+ * mocha.timeout(1000);
+ * @example
+ *
+ * // Same as above but using string argument
+ * mocha.timeout('1s');
  */
-Mocha.prototype.timeout = function(timeout) {
-  this.suite.timeout(timeout);
+Mocha.prototype.timeout = function(msecs) {
+  this.suite.timeout(msecs);
   return this;
 };
 
 /**
- * Set the number of times to retry failed tests.
+ * Sets the number of times to retry failed tests.
  *
- * @param {Number} retry times
- * @return {Mocha}
- * @api public
+ * @public
+ * @see {@link https://mochajs.org/#retry-tests|Retry Tests}
+ * @param {number} retry - Number of times to retry failed tests.
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Allow any failed test to retry one more time
+ * mocha.retries(1);
  */
 Mocha.prototype.retries = function(n) {
   this.suite.retries(n);
@@ -1639,38 +2042,50 @@ Mocha.prototype.retries = function(n) {
 };
 
 /**
- * Set slowness threshold in milliseconds.
+ * Sets slowness threshold value.
  *
- * @param {Number} slow
- * @return {Mocha}
- * @api public
- * @param {number} slow
- * @return {Mocha}
+ * @public
+ * @see {@link https://mochajs.org/#-s---slow-ms|CLI option}
+ * @param {number} msecs - Slowness threshold value.
+ * @return {Mocha} this
+ * @chainable
+ * @example
+ *
+ * // Sets "slow" threshold to half a second
+ * mocha.slow(500);
+ * @example
+ *
+ * // Same as above but using string argument
+ * mocha.slow('0.5s');
  */
-Mocha.prototype.slow = function(slow) {
-  this.suite.slow(slow);
+Mocha.prototype.slow = function(msecs) {
+  this.suite.slow(msecs);
   return this;
 };
 
 /**
- * Enable timeouts.
+ * Enables or disables timeouts.
  *
- * @param {Boolean} enabled
- * @return {Mocha}
- * @api public
- * @param {boolean} enabled
- * @return {Mocha}
+ * @public
+ * @see {@link https://mochajs.org/#-t---timeout-ms|CLI option}
+ * @see {@link https://mochajs.org/#--no-timeouts|CLI option}
+ * @param {boolean} enableTimeouts - Whether to enable timeouts.
+ * @return {Mocha} this
+ * @chainable
  */
-Mocha.prototype.enableTimeouts = function(enabled) {
-  this.suite.enableTimeouts(arguments.length && enabled !== undefined ? enabled : true);
+Mocha.prototype.enableTimeouts = function(enableTimeouts) {
+  this.suite.enableTimeouts(
+    arguments.length && enableTimeouts !== undefined ? enableTimeouts : true
+  );
   return this;
 };
 
 /**
- * Makes all tests async (accepting a callback)
+ * Forces all tests to either accept a `done` callback or return a promise.
  *
- * @return {Mocha}
- * @api public
+ * @public
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.asyncOnly = function() {
   this.options.asyncOnly = true;
@@ -1678,9 +2093,11 @@ Mocha.prototype.asyncOnly = function() {
 };
 
 /**
- * Disable syntax highlighting (in browser).
+ * Disables syntax highlighting (in browser).
  *
- * @api public
+ * @public
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.noHighlighting = function() {
   this.options.noHighlighting = true;
@@ -1688,10 +2105,11 @@ Mocha.prototype.noHighlighting = function() {
 };
 
 /**
- * Enable uncaught errors to propagate (in browser).
+ * Enables uncaught errors to propagate (in browser).
  *
- * @return {Mocha}
- * @api public
+ * @public
+ * @return {Mocha} this
+ * @chainable
  */
 Mocha.prototype.allowUncaught = function() {
   this.options.allowUncaught = true;
@@ -1699,8 +2117,16 @@ Mocha.prototype.allowUncaught = function() {
 };
 
 /**
- * Delay root suite execution.
- * @returns {Mocha}
+ * @summary
+ * Delays root suite execution.
+ *
+ * @description
+ * Used to perform asynch operations before any suites are run.
+ *
+ * @public
+ * @see {@link https://mochajs.org/#delayed-root-suite|delayed root suite}
+ * @returns {Mocha} this
+ * @chainable
  */
 Mocha.prototype.delay = function delay() {
   this.options.delay = true;
@@ -1708,11 +2134,64 @@ Mocha.prototype.delay = function delay() {
 };
 
 /**
- * Run tests and invoke `fn()` when complete.
+ * Causes tests marked `only` to fail the suite.
  *
- * @api public
- * @param {Function} fn
- * @return {Runner}
+ * @public
+ * @returns {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.forbidOnly = function() {
+  this.options.forbidOnly = true;
+  return this;
+};
+
+/**
+ * Causes pending tests and tests marked `skip` to fail the suite.
+ *
+ * @public
+ * @returns {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.forbidPending = function() {
+  this.options.forbidPending = true;
+  return this;
+};
+
+/**
+ * Mocha version as specified by "package.json".
+ *
+ * @name Mocha#version
+ * @type string
+ * @readonly
+ */
+Object.defineProperty(Mocha.prototype, 'version', {
+  value: require('../package.json').version,
+  configurable: false,
+  enumerable: true,
+  writable: false
+});
+
+/**
+ * Callback to be invoked when test execution is complete.
+ *
+ * @callback DoneCB
+ * @param {number} failures - Number of failures that occurred.
+ */
+
+/**
+ * Runs root suite and invokes `fn()` when complete.
+ *
+ * @description
+ * To run tests multiple times (or to run tests in files that are
+ * already in the `require` cache), make sure to clear them from
+ * the cache first!
+ *
+ * @public
+ * @see {@link Mocha#loadFiles}
+ * @see {@link Mocha#unloadFiles}
+ * @see {@link Runner#run}
+ * @param {DoneCB} [fn] - Callback invoked when test execution completed.
+ * @return {Runner} runner instance
  */
 Mocha.prototype.run = function(fn) {
   if (this.files.length) {
@@ -1722,12 +2201,14 @@ Mocha.prototype.run = function(fn) {
   var options = this.options;
   options.files = this.files;
   var runner = new exports.Runner(suite, options.delay);
+  createStatsCollector(runner);
   var reporter = new this._reporter(runner, options);
   runner.ignoreLeaks = options.ignoreLeaks !== false;
   runner.fullStackTrace = options.fullStackTrace;
-  runner.hasOnly = options.hasOnly;
   runner.asyncOnly = options.asyncOnly;
   runner.allowUncaught = options.allowUncaught;
+  runner.forbidOnly = options.forbidOnly;
+  runner.forbidPending = options.forbidPending;
   if (options.grep) {
     runner.grep(options.grep, options.invert);
   }
@@ -1735,214 +2216,91 @@ Mocha.prototype.run = function(fn) {
     runner.globals(options.globals);
   }
   if (options.growl) {
-    this._growl(runner, reporter);
+    this._growl(runner);
   }
   if (options.useColors !== undefined) {
     exports.reporters.Base.useColors = options.useColors;
   }
   exports.reporters.Base.inlineDiffs = options.useInlineDiffs;
+  exports.reporters.Base.hideDiff = options.hideDiff;
 
   function done(failures) {
+    fn = fn || utils.noop;
     if (reporter.done) {
       reporter.done(failures, fn);
     } else {
-      fn && fn(failures);
+      fn(failures);
     }
   }
 
   return runner.run(done);
 };
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},"/lib")
-},{"./context":6,"./hook":7,"./interfaces":11,"./reporters":21,"./runnable":33,"./runner":34,"./suite":35,"./test":36,"./utils":38,"_process":67,"escape-string-regexp":47,"growl":49,"path":42}],15:[function(require,module,exports){
-/**
- * Helpers.
- */
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"../package.json":90,"./context":5,"./errors":6,"./growl":2,"./hook":7,"./interfaces":11,"./mocharc.json":15,"./reporters":21,"./runnable":33,"./runner":34,"./stats-collector":35,"./suite":36,"./test":37,"./utils":38,"_process":69,"escape-string-regexp":49,"path":42}],15:[function(require,module,exports){
+module.exports={
+  "diff": true,
+  "extension": ["js"],
+  "opts": "./test/mocha.opts",
+  "package": "./package.json",
+  "reporter": "spec",
+  "slow": 75,
+  "timeout": 2000,
+  "ui": "bdd"
+}
 
-var s = 1000;
-var m = s * 60;
-var h = m * 60;
-var d = h * 24;
-var y = d * 365.25;
+},{}],16:[function(require,module,exports){
+'use strict';
+
+module.exports = Pending;
 
 /**
- * Parse or format the given `val`.
- *
- * Options:
- *
- *  - `long` verbose formatting [false]
+ * Initialize a new `Pending` error with the given message.
  *
- * @api public
- * @param {string|number} val
- * @param {Object} options
- * @return {string|number}
+ * @param {string} message
  */
-module.exports = function(val, options) {
-  options = options || {};
-  if (typeof val === 'string') {
-    return parse(val);
-  }
-  // https://github.com/mochajs/mocha/pull/1035
-  return options['long'] ? longFormat(val) : shortFormat(val);
-};
+function Pending(message) {
+  this.message = message;
+}
 
+},{}],17:[function(require,module,exports){
+(function (process){
+'use strict';
 /**
- * Parse the given `str` and return milliseconds.
- *
- * @api private
- * @param {string} str
- * @return {number}
+ * @module Base
+ */
+/**
+ * Module dependencies.
  */
-function parse(str) {
-  var match = (/^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i).exec(str);
-  if (!match) {
-    return;
-  }
-  var n = parseFloat(match[1]);
-  var type = (match[2] || 'ms').toLowerCase();
-  switch (type) {
-    case 'years':
-    case 'year':
-    case 'y':
-      return n * y;
-    case 'days':
-    case 'day':
-    case 'd':
-      return n * d;
-    case 'hours':
-    case 'hour':
-    case 'h':
-      return n * h;
-    case 'minutes':
-    case 'minute':
-    case 'm':
-      return n * m;
-    case 'seconds':
-    case 'second':
-    case 's':
-      return n * s;
-    case 'ms':
-      return n;
-    default:
-      // No default case
-  }
-}
+
+var tty = require('tty');
+var diff = require('diff');
+var milliseconds = require('ms');
+var utils = require('../utils');
+var supportsColor = process.browser ? null : require('supports-color');
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
 
 /**
- * Short format for `ms`.
- *
- * @api private
- * @param {number} ms
- * @return {string}
+ * Expose `Base`.
  */
-function shortFormat(ms) {
-  if (ms >= d) {
-    return Math.round(ms / d) + 'd';
-  }
-  if (ms >= h) {
-    return Math.round(ms / h) + 'h';
-  }
-  if (ms >= m) {
-    return Math.round(ms / m) + 'm';
-  }
-  if (ms >= s) {
-    return Math.round(ms / s) + 's';
-  }
-  return ms + 'ms';
-}
+
+exports = module.exports = Base;
 
 /**
- * Long format for `ms`.
- *
- * @api private
- * @param {number} ms
- * @return {string}
+ * Check if both stdio streams are associated with a tty.
  */
-function longFormat(ms) {
-  return plural(ms, d, 'day')
-    || plural(ms, h, 'hour')
-    || plural(ms, m, 'minute')
-    || plural(ms, s, 'second')
-    || ms + ' ms';
-}
-
-/**
- * Pluralization helper.
- *
- * @api private
- * @param {number} ms
- * @param {number} n
- * @param {string} name
- */
-function plural(ms, n, name) {
-  if (ms < n) {
-    return;
-  }
-  if (ms < n * 1.5) {
-    return Math.floor(ms / n) + ' ' + name;
-  }
-  return Math.ceil(ms / n) + ' ' + name + 's';
-}
-
-},{}],16:[function(require,module,exports){
-
-/**
- * Expose `Pending`.
- */
-
-module.exports = Pending;
-
-/**
- * Initialize a new `Pending` error with the given message.
- *
- * @param {string} message
- */
-function Pending(message) {
-  this.message = message;
-}
-
-},{}],17:[function(require,module,exports){
-(function (process,global){
-/**
- * Module dependencies.
- */
-
-var tty = require('tty');
-var diff = require('diff');
-var ms = require('../ms');
-var utils = require('../utils');
-var supportsColor = process.browser ? null : require('supports-color');
-
-/**
- * Expose `Base`.
- */
-
-exports = module.exports = Base;
-
-/**
- * Save timer references to avoid Sinon interfering.
- * See: https://github.com/mochajs/mocha/issues/237
- */
-
-/* eslint-disable no-unused-vars, no-native-reassign */
-var Date = global.Date;
-var setTimeout = global.setTimeout;
-var setInterval = global.setInterval;
-var clearTimeout = global.clearTimeout;
-var clearInterval = global.clearInterval;
-/* eslint-enable no-unused-vars, no-native-reassign */
-
-/**
- * Check if both stdio streams are associated with a tty.
- */
-
-var isatty = tty.isatty(1) && tty.isatty(2);
+
+var isatty = tty.isatty(1) && tty.isatty(2);
 
 /**
  * Enable coloring by default, except in the browser interface.
  */
 
-exports.useColors = !process.browser && (supportsColor || (process.env.MOCHA_COLORS !== undefined));
+exports.useColors =
+  !process.browser &&
+  (supportsColor.stdout || process.env.MOCHA_COLORS !== undefined);
 
 /**
  * Inline diffs instead of +/-
@@ -2001,17 +2359,17 @@ if (process.platform === 'win32') {
  * as well as user-defined color
  * schemes.
  *
+ * @private
  * @param {string} type
  * @param {string} str
  * @return {string}
- * @api private
  */
-var color = exports.color = function(type, str) {
+var color = (exports.color = function(type, str) {
   if (!exports.useColors) {
     return String(str);
   }
   return '\u001b[' + exports.colors[type] + 'm' + str + '\u001b[0m';
-};
+});
 
 /**
  * Expose term window size, with some defaults for when stderr is not a tty.
@@ -2023,8 +2381,8 @@ exports.window = {
 
 if (isatty) {
   exports.window.width = process.stdout.getWindowSize
-      ? process.stdout.getWindowSize(1)[0]
-      : tty.getWindowSize()[1];
+    ? process.stdout.getWindowSize(1)[0]
+    : tty.getWindowSize()[1];
 }
 
 /**
@@ -2058,20 +2416,56 @@ exports.cursor = {
   }
 };
 
+function showDiff(err) {
+  return (
+    err &&
+    err.showDiff !== false &&
+    sameType(err.actual, err.expected) &&
+    err.expected !== undefined
+  );
+}
+
+function stringifyDiffObjs(err) {
+  if (!utils.isString(err.actual) || !utils.isString(err.expected)) {
+    err.actual = utils.stringify(err.actual);
+    err.expected = utils.stringify(err.expected);
+  }
+}
+
 /**
- * Outut the given `failures` as a list.
+ * Returns a diff between 2 strings with coloured ANSI output.
  *
- * @param {Array} failures
- * @api public
+ * @description
+ * The diff will be either inline or unified dependent on the value
+ * of `Base.inlineDiff`.
+ *
+ * @param {string} actual
+ * @param {string} expected
+ * @return {string} Diff
  */
+var generateDiff = (exports.generateDiff = function(actual, expected) {
+  return exports.inlineDiffs
+    ? inlineDiff(actual, expected)
+    : unifiedDiff(actual, expected);
+});
 
+/**
+ * Outputs the given `failures` as a list.
+ *
+ * @public
+ * @memberof Mocha.reporters.Base
+ * @variation 1
+ * @param {Object[]} failures - Each is Test instance with corresponding
+ *     Error property
+ */
 exports.list = function(failures) {
   console.log();
   failures.forEach(function(test, i) {
     // format
-    var fmt = color('error title', '  %s) %s:\n')
-      + color('error message', '     %s')
-      + color('error stack', '\n%s\n');
+    var fmt =
+      color('error title', '  %s) %s:\n') +
+      color('error message', '     %s') +
+      color('error stack', '\n%s\n');
 
     // msg
     var msg;
@@ -2086,9 +2480,6 @@ exports.list = function(failures) {
     }
     var stack = err.stack || message;
     var index = message ? stack.indexOf(message) : -1;
-    var actual = err.actual;
-    var expected = err.expected;
-    var escape = true;
 
     if (index === -1) {
       msg = message;
@@ -2104,71 +2495,58 @@ exports.list = function(failures) {
       msg = 'Uncaught ' + msg;
     }
     // explicitly show diff
-    if (err.showDiff !== false && sameType(actual, expected) && expected !== undefined) {
-      escape = false;
-      if (!(utils.isString(actual) && utils.isString(expected))) {
-        err.actual = actual = utils.stringify(actual);
-        err.expected = expected = utils.stringify(expected);
-      }
-
-      fmt = color('error title', '  %s) %s:\n%s') + color('error stack', '\n%s\n');
+    if (!exports.hideDiff && showDiff(err)) {
+      stringifyDiffObjs(err);
+      fmt =
+        color('error title', '  %s) %s:\n%s') + color('error stack', '\n%s\n');
       var match = message.match(/^([^:]+): expected/);
       msg = '\n      ' + color('error message', match ? match[1] : msg);
 
-      if (exports.inlineDiffs) {
-        msg += inlineDiff(err, escape);
-      } else {
-        msg += unifiedDiff(err, escape);
-      }
+      msg += generateDiff(err.actual, err.expected);
     }
 
     // indent stack trace
     stack = stack.replace(/^/gm, '  ');
 
-    console.log(fmt, (i + 1), test.fullTitle(), msg, stack);
+    // indented test title
+    var testTitle = '';
+    test.titlePath().forEach(function(str, index) {
+      if (index !== 0) {
+        testTitle += '\n     ';
+      }
+      for (var i = 0; i < index; i++) {
+        testTitle += '  ';
+      }
+      testTitle += str;
+    });
+
+    console.log(fmt, i + 1, testTitle, msg, stack);
   });
 };
 
 /**
- * Initialize a new `Base` reporter.
+ * Constructs a new `Base` reporter instance.
  *
- * All other reporters generally
- * inherit from this reporter, providing
- * stats such as test duration, number
- * of tests passed / failed etc.
+ * @description
+ * All other reporters generally inherit from this reporter.
  *
- * @param {Runner} runner
- * @api public
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-
-function Base(runner) {
-  var stats = this.stats = { suites: 0, tests: 0, passes: 0, pending: 0, failures: 0 };
-  var failures = this.failures = [];
+function Base(runner, options) {
+  var failures = (this.failures = []);
 
   if (!runner) {
-    return;
+    throw new TypeError('Missing runner argument');
   }
+  this.options = options || {};
   this.runner = runner;
+  this.stats = runner.stats; // assigned so Reporters keep a closer reference
 
-  runner.stats = stats;
-
-  runner.on('start', function() {
-    stats.start = new Date();
-  });
-
-  runner.on('suite', function(suite) {
-    stats.suites = stats.suites || 0;
-    suite.root || stats.suites++;
-  });
-
-  runner.on('test end', function() {
-    stats.tests = stats.tests || 0;
-    stats.tests++;
-  });
-
-  runner.on('pass', function(test) {
-    stats.passes = stats.passes || 0;
-
+  runner.on(EVENT_TEST_PASS, function(test) {
     if (test.duration > test.slow()) {
       test.speed = 'slow';
     } else if (test.duration > test.slow() / 2) {
@@ -2176,32 +2554,22 @@ function Base(runner) {
     } else {
       test.speed = 'fast';
     }
-
-    stats.passes++;
   });
 
-  runner.on('fail', function(test, err) {
-    stats.failures = stats.failures || 0;
-    stats.failures++;
+  runner.on(EVENT_TEST_FAIL, function(test, err) {
+    if (showDiff(err)) {
+      stringifyDiffObjs(err);
+    }
     test.err = err;
     failures.push(test);
   });
-
-  runner.on('end', function() {
-    stats.end = new Date();
-    stats.duration = new Date() - stats.start;
-  });
-
-  runner.on('pending', function() {
-    stats.pending++;
-  });
 }
 
 /**
- * Output common epilogue used by many of
- * the bundled reporters.
+ * Outputs common epilogue used by many of the bundled reporters.
  *
- * @api public
+ * @public
+ * @memberof Mocha.reporters.Base
  */
 Base.prototype.epilogue = function() {
   var stats = this.stats;
@@ -2210,18 +2578,16 @@ Base.prototype.epilogue = function() {
   console.log();
 
   // passes
-  fmt = color('bright pass', ' ')
-    + color('green', ' %d passing')
-    + color('light', ' (%s)');
+  fmt =
+    color('bright pass', ' ') +
+    color('green', ' %d passing') +
+    color('light', ' (%s)');
 
-  console.log(fmt,
-    stats.passes || 0,
-    ms(stats.duration));
+  console.log(fmt, stats.passes || 0, milliseconds(stats.duration));
 
   // pending
   if (stats.pending) {
-    fmt = color('pending', ' ')
-      + color('pending', ' %d pending');
+    fmt = color('pending', ' ') + color('pending', ' %d pending');
 
     console.log(fmt, stats.pending);
   }
@@ -2240,9 +2606,9 @@ Base.prototype.epilogue = function() {
 };
 
 /**
- * Pad the given `str` to `len`.
+ * Pads the given `str` to `len`.
  *
- * @api private
+ * @private
  * @param {string} str
  * @param {string} len
  * @return {string}
@@ -2253,33 +2619,36 @@ function pad(str, len) {
 }
 
 /**
- * Returns an inline diff between 2 strings with coloured ANSI output
+ * Returns inline diff between 2 strings with coloured ANSI output.
  *
- * @api private
- * @param {Error} err with actual/expected
- * @param {boolean} escape
+ * @private
+ * @param {String} actual
+ * @param {String} expected
  * @return {string} Diff
  */
-function inlineDiff(err, escape) {
-  var msg = errorDiff(err, 'WordsWithSpace', escape);
+function inlineDiff(actual, expected) {
+  var msg = errorDiff(actual, expected);
 
   // linenos
   var lines = msg.split('\n');
   if (lines.length > 4) {
     var width = String(lines.length).length;
-    msg = lines.map(function(str, i) {
-      return pad(++i, width) + ' |' + ' ' + str;
-    }).join('\n');
+    msg = lines
+      .map(function(str, i) {
+        return pad(++i, width) + ' |' + ' ' + str;
+      })
+      .join('\n');
   }
 
   // legend
-  msg = '\n'
-    + color('diff removed', 'actual')
-    + ' '
-    + color('diff added', 'expected')
-    + '\n\n'
-    + msg
-    + '\n';
+  msg =
+    '\n' +
+    color('diff removed', 'actual') +
+    ' ' +
+    color('diff added', 'expected') +
+    '\n\n' +
+    msg +
+    '\n';
 
   // indent
   msg = msg.replace(/^/gm, '      ');
@@ -2287,27 +2656,24 @@ function inlineDiff(err, escape) {
 }
 
 /**
- * Returns a unified diff between two strings.
+ * Returns unified diff between two strings with coloured ANSI output.
  *
- * @api private
- * @param {Error} err with actual/expected
- * @param {boolean} escape
+ * @private
+ * @param {String} actual
+ * @param {String} expected
  * @return {string} The diff.
  */
-function unifiedDiff(err, escape) {
+function unifiedDiff(actual, expected) {
   var indent = '      ';
   function cleanUp(line) {
-    if (escape) {
-      line = escapeInvisibles(line);
-    }
     if (line[0] === '+') {
       return indent + colorLines('diff added', line);
     }
     if (line[0] === '-') {
       return indent + colorLines('diff removed', line);
     }
-    if (line.match(/\@\@/)) {
-      return null;
+    if (line.match(/@@/)) {
+      return '--';
     }
     if (line.match(/\\ No newline/)) {
       return null;
@@ -2317,63 +2683,59 @@ function unifiedDiff(err, escape) {
   function notBlank(line) {
     return typeof line !== 'undefined' && line !== null;
   }
-  var msg = diff.createPatch('string', err.actual, err.expected);
-  var lines = msg.split('\n').splice(4);
-  return '\n      '
-    + colorLines('diff added', '+ expected') + ' '
-    + colorLines('diff removed', '- actual')
-    + '\n\n'
-    + lines.map(cleanUp).filter(notBlank).join('\n');
-}
-
-/**
- * Return a character diff for `err`.
- *
- * @api private
- * @param {Error} err
- * @param {string} type
- * @param {boolean} escape
- * @return {string}
- */
-function errorDiff(err, type, escape) {
-  var actual = escape ? escapeInvisibles(err.actual) : err.actual;
-  var expected = escape ? escapeInvisibles(err.expected) : err.expected;
-  return diff['diff' + type](actual, expected).map(function(str) {
-    if (str.added) {
-      return colorLines('diff added', str.value);
-    }
-    if (str.removed) {
-      return colorLines('diff removed', str.value);
-    }
-    return str.value;
-  }).join('');
+  var msg = diff.createPatch('string', actual, expected);
+  var lines = msg.split('\n').splice(5);
+  return (
+    '\n      ' +
+    colorLines('diff added', '+ expected') +
+    ' ' +
+    colorLines('diff removed', '- actual') +
+    '\n\n' +
+    lines
+      .map(cleanUp)
+      .filter(notBlank)
+      .join('\n')
+  );
 }
 
 /**
- * Returns a string with all invisible characters in plain text
+ * Returns character diff for `err`.
  *
- * @api private
- * @param {string} line
- * @return {string}
- */
-function escapeInvisibles(line) {
-  return line.replace(/\t/g, '<tab>')
-    .replace(/\r/g, '<CR>')
-    .replace(/\n/g, '<LF>\n');
+ * @private
+ * @param {String} actual
+ * @param {String} expected
+ * @return {string} the diff
+ */
+function errorDiff(actual, expected) {
+  return diff
+    .diffWordsWithSpace(actual, expected)
+    .map(function(str) {
+      if (str.added) {
+        return colorLines('diff added', str.value);
+      }
+      if (str.removed) {
+        return colorLines('diff removed', str.value);
+      }
+      return str.value;
+    })
+    .join('');
 }
 
 /**
- * Color lines for `str`, using the color `name`.
+ * Colors lines for `str`, using the color `name`.
  *
- * @api private
+ * @private
  * @param {string} name
  * @param {string} str
  * @return {string}
  */
 function colorLines(name, str) {
-  return str.split('\n').map(function(str) {
-    return color(name, str);
-  }).join('\n');
+  return str
+    .split('\n')
+    .map(function(str) {
+      return color(name, str);
+    })
+    .join('\n');
 }
 
 /**
@@ -2382,9 +2744,9 @@ function colorLines(name, str) {
 var objToString = Object.prototype.toString;
 
 /**
- * Check that a / b have the same type.
+ * Checks that a / b have the same type.
  *
- * @api private
+ * @private
  * @param {Object} a
  * @param {Object} b
  * @return {boolean}
@@ -2393,14 +2755,25 @@ function sameType(a, b) {
   return objToString.call(a) === objToString.call(b);
 }
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../ms":15,"../utils":38,"_process":67,"diff":46,"supports-color":42,"tty":5}],18:[function(require,module,exports){
+Base.abstract = true;
+
+}).call(this,require('_process'))
+},{"../runner":34,"../utils":38,"_process":69,"diff":48,"ms":60,"supports-color":42,"tty":4}],18:[function(require,module,exports){
+'use strict';
+/**
+ * @module Doc
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var utils = require('../utils');
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+var EVENT_SUITE_END = constants.EVENT_SUITE_END;
 
 /**
  * Expose `Doc`.
@@ -2409,13 +2782,17 @@ var utils = require('../utils');
 exports = module.exports = Doc;
 
 /**
- * Initialize a new `Doc` reporter.
+ * Constructs a new `Doc` reporter instance.
  *
- * @param {Runner} runner
- * @api public
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function Doc(runner) {
-  Base.call(this, runner);
+function Doc(runner, options) {
+  Base.call(this, runner, options);
 
   var indents = 2;
 
@@ -2423,7 +2800,7 @@ function Doc(runner) {
     return Array(indents).join('  ');
   }
 
-  runner.on('suite', function(suite) {
+  runner.on(EVENT_SUITE_BEGIN, function(suite) {
     if (suite.root) {
       return;
     }
@@ -2434,7 +2811,7 @@ function Doc(runner) {
     console.log('%s<dl>', indent());
   });
 
-  runner.on('suite end', function(suite) {
+  runner.on(EVENT_SUITE_END, function(suite) {
     if (suite.root) {
       return;
     }
@@ -2444,29 +2821,48 @@ function Doc(runner) {
     --indents;
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     console.log('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
     var code = utils.escape(utils.clean(test.body));
     console.log('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
   });
 
-  runner.on('fail', function(test, err) {
-    console.log('%s  <dt class="error">%s</dt>', indent(), utils.escape(test.title));
+  runner.on(EVENT_TEST_FAIL, function(test, err) {
+    console.log(
+      '%s  <dt class="error">%s</dt>',
+      indent(),
+      utils.escape(test.title)
+    );
     var code = utils.escape(utils.clean(test.body));
-    console.log('%s  <dd class="error"><pre><code>%s</code></pre></dd>', indent(), code);
+    console.log(
+      '%s  <dd class="error"><pre><code>%s</code></pre></dd>',
+      indent(),
+      code
+    );
     console.log('%s  <dd class="error">%s</dd>', indent(), utils.escape(err));
   });
 }
 
-},{"../utils":38,"./base":17}],19:[function(require,module,exports){
+Doc.description = 'HTML documentation';
+
+},{"../runner":34,"../utils":38,"./base":17}],19:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module Dot
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var inherits = require('../utils').inherits;
-var color = Base.color;
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
 
 /**
  * Expose `Dot`.
@@ -2475,48 +2871,52 @@ var color = Base.color;
 exports = module.exports = Dot;
 
 /**
- * Initialize a new `Dot` matrix test reporter.
+ * Constructs a new `Dot` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function Dot(runner) {
-  Base.call(this, runner);
+function Dot(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
-  var width = Base.window.width * .75 | 0;
+  var width = (Base.window.width * 0.75) | 0;
   var n = -1;
 
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     process.stdout.write('\n');
   });
 
-  runner.on('pending', function() {
+  runner.on(EVENT_TEST_PENDING, function() {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
-    process.stdout.write(color('pending', Base.symbols.comma));
+    process.stdout.write(Base.color('pending', Base.symbols.comma));
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
     if (test.speed === 'slow') {
-      process.stdout.write(color('bright yellow', Base.symbols.dot));
+      process.stdout.write(Base.color('bright yellow', Base.symbols.dot));
     } else {
-      process.stdout.write(color(test.speed, Base.symbols.dot));
+      process.stdout.write(Base.color(test.speed, Base.symbols.dot));
     }
   });
 
-  runner.on('fail', function() {
+  runner.on(EVENT_TEST_FAIL, function() {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
-    process.stdout.write(color('fail', Base.symbols.bang));
+    process.stdout.write(Base.color('fail', Base.symbols.bang));
   });
 
-  runner.on('end', function() {
+  runner.once(EVENT_RUN_END, function() {
     console.log();
     self.epilogue();
   });
@@ -2527,11 +2927,17 @@ function Dot(runner) {
  */
 inherits(Dot, Base);
 
+Dot.description = 'dot matrix representation';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],20:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":69}],20:[function(require,module,exports){
 (function (global){
-/* eslint-env browser */
+'use strict';
 
+/* eslint-env browser */
+/**
+ * @module HTML
+ */
 /**
  * Module dependencies.
  */
@@ -2540,19 +2946,19 @@ var Base = require('./base');
 var utils = require('../utils');
 var Progress = require('../browser/progress');
 var escapeRe = require('escape-string-regexp');
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
 var escape = utils.escape;
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
  */
 
-/* eslint-disable no-unused-vars, no-native-reassign */
 var Date = global.Date;
-var setTimeout = global.setTimeout;
-var setInterval = global.setInterval;
-var clearTimeout = global.clearTimeout;
-var clearInterval = global.clearInterval;
-/* eslint-enable no-unused-vars, no-native-reassign */
 
 /**
  * Expose `HTML`.
@@ -2564,21 +2970,28 @@ exports = module.exports = HTML;
  * Stats template.
  */
 
-var statsTemplate = '<ul id="mocha-stats">'
-  + '<li class="progress"><canvas width="40" height="40"></canvas></li>'
-  + '<li class="passes"><a href="/service/javascript:void(0);">passes:</a> <em>0</em></li>'
-  + '<li class="failures"><a href="/service/javascript:void(0);">failures:</a> <em>0</em></li>'
-  + '<li class="duration">duration: <em>0</em>s</li>'
-  + '</ul>';
+var statsTemplate =
+  '<ul id="mocha-stats">' +
+  '<li class="progress"><canvas width="40" height="40"></canvas></li>' +
+  '<li class="passes"><a href="/service/javascript:void(0);">passes:</a> <em>0</em></li>' +
+  '<li class="failures"><a href="/service/javascript:void(0);">failures:</a> <em>0</em></li>' +
+  '<li class="duration">duration: <em>0</em>s</li>' +
+  '</ul>';
+
+var playIcon = '&#x2023;';
 
 /**
- * Initialize a new `HTML` reporter.
+ * Constructs a new `HTML` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function HTML(runner) {
-  Base.call(this, runner);
+function HTML(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
   var stats = this.stats;
@@ -2615,7 +3028,7 @@ function HTML(runner) {
   on(passesLink, 'click', function(evt) {
     evt.preventDefault();
     unhide();
-    var name = (/pass/).test(report.className) ? '' : ' pass';
+    var name = /pass/.test(report.className) ? '' : ' pass';
     report.className = report.className.replace(/fail|pass/g, '') + name;
     if (report.className.trim()) {
       hideSuitesWithout('test pass');
@@ -2626,7 +3039,7 @@ function HTML(runner) {
   on(failuresLink, 'click', function(evt) {
     evt.preventDefault();
     unhide();
-    var name = (/fail/).test(report.className) ? '' : ' fail';
+    var name = /fail/.test(report.className) ? '' : ' fail';
     report.className = report.className.replace(/fail|pass/g, '') + name;
     if (report.className.trim()) {
       hideSuitesWithout('test fail');
@@ -2640,14 +3053,18 @@ function HTML(runner) {
     progress.size(40);
   }
 
-  runner.on('suite', function(suite) {
+  runner.on(EVENT_SUITE_BEGIN, function(suite) {
     if (suite.root) {
       return;
     }
 
     // suite
     var url = self.suiteURL(suite);
-    var el = fragment('<li class="suite"><h1><a href="http://github.com/%s">%s</a></h1></li>', url, escape(suite.title));
+    var el = fragment(
+      '<li class="suite"><h1><a href="http://github.com/%s">%s</a></h1></li>',
+      url,
+      escape(suite.title)
+    );
 
     // container
     stack[0].appendChild(el);
@@ -2655,7 +3072,7 @@ function HTML(runner) {
     el.appendChild(stack[0]);
   });
 
-  runner.on('suite end', function(suite) {
+  runner.on(EVENT_SUITE_END, function(suite) {
     if (suite.root) {
       updateStats();
       return;
@@ -2663,19 +3080,27 @@ function HTML(runner) {
     stack.shift();
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     var url = self.testURL(test);
-    var markup = '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> '
-      + '<a href="http://github.com/%s" class="replay">‣</a></h2></li>';
+    var markup =
+      '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> ' +
+      '<a href="http://github.com/%s" class="replay">' +
+      playIcon +
+      '</a></h2></li>';
     var el = fragment(markup, test.speed, test.title, test.duration, url);
     self.addCodeToggle(el, test.body);
     appendToStack(el);
     updateStats();
   });
 
-  runner.on('fail', function(test) {
-    var el = fragment('<li class="test fail"><h2>%e <a href="http://github.com/%e" class="replay">‣</a></h2></li>',
-      test.title, self.testURL(test));
+  runner.on(EVENT_TEST_FAIL, function(test) {
+    var el = fragment(
+      '<li class="test fail"><h2>%e <a href="http://github.com/%e" class="replay">' +
+        playIcon +
+        '</a></h2></li>',
+      test.title,
+      self.testURL(test)
+    );
     var stackString; // Note: Includes leading newline
     var message = test.err.toString();
 
@@ -2690,7 +3115,9 @@ function HTML(runner) {
       if (indexOfMessage === -1) {
         stackString = test.err.stack;
       } else {
-        stackString = test.err.stack.substr(test.err.message.length + indexOfMessage);
+        stackString = test.err.stack.substr(
+          test.err.message.length + indexOfMessage
+        );
       }
     } else if (test.err.sourceURL && test.err.line !== undefined) {
       // Safari doesn't give you a stack. Let's at least provide a source line.
@@ -2700,12 +3127,21 @@ function HTML(runner) {
     stackString = stackString || '';
 
     if (test.err.htmlMessage && stackString) {
-      el.appendChild(fragment('<div class="html-error">%s\n<pre class="error">%e</pre></div>',
-        test.err.htmlMessage, stackString));
+      el.appendChild(
+        fragment(
+          '<div class="html-error">%s\n<pre class="error">%e</pre></div>',
+          test.err.htmlMessage,
+          stackString
+        )
+      );
     } else if (test.err.htmlMessage) {
-      el.appendChild(fragment('<div class="html-error">%s</div>', test.err.htmlMessage));
+      el.appendChild(
+        fragment('<div class="html-error">%s</div>', test.err.htmlMessage)
+      );
     } else {
-      el.appendChild(fragment('<pre class="error">%e%e</pre>', message, stackString));
+      el.appendChild(
+        fragment('<pre class="error">%e%e</pre>', message, stackString)
+      );
     }
 
     self.addCodeToggle(el, test.body);
@@ -2713,8 +3149,11 @@ function HTML(runner) {
     updateStats();
   });
 
-  runner.on('pending', function(test) {
-    var el = fragment('<li class="test pass pending"><h2>%e</h2></li>', test.title);
+  runner.on(EVENT_TEST_PENDING, function(test) {
+    var el = fragment(
+      '<li class="test pass pending"><h2>%e</h2></li>',
+      test.title
+    );
     appendToStack(el);
     updateStats();
   });
@@ -2728,7 +3167,7 @@ function HTML(runner) {
 
   function updateStats() {
     // TODO: add to stats
-    var percent = stats.tests / runner.total * 100 | 0;
+    var percent = ((stats.tests / runner.total) * 100) | 0;
     if (progress) {
       progress.update(percent).draw(ctx);
     }
@@ -2755,7 +3194,12 @@ function makeUrl(s) {
     search = search.replace(/[?&]grep=[^&\s]*/g, '').replace(/^&/, '?');
   }
 
-  return window.location.pathname + (search ? search + '&' : '?') + 'grep=' + encodeURIComponent(escapeRe(s));
+  return (
+    window.location.pathname +
+    (search ? search + '&' : '?') +
+    'grep=' +
+    encodeURIComponent(escapeRe(s))
+  );
 }
 
 /**
@@ -2815,8 +3259,10 @@ function fragment(html) {
 
   div.innerHTML = html.replace(/%([se])/g, function(_, type) {
     switch (type) {
-      case 's': return String(args[i++]);
-      case 'e': return escape(args[i++]);
+      case 's':
+        return String(args[i++]);
+      case 'e':
+        return escape(args[i++]);
       // no default
     }
   });
@@ -2875,8 +3321,12 @@ function on(el, event, fn) {
   }
 }
 
+HTML.browserOnly = true;
+
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../browser/progress":4,"../utils":38,"./base":17,"escape-string-regexp":47}],21:[function(require,module,exports){
+},{"../browser/progress":3,"../runner":34,"../utils":38,"./base":17,"escape-string-regexp":49}],21:[function(require,module,exports){
+'use strict';
+
 // Alias exports to a their normalized format Mocha#reporter to prevent a need
 // for dynamic (try/catch) requires, which Browserify doesn't handle.
 exports.Base = exports.base = require('./base');
@@ -2897,58 +3347,85 @@ exports.JSONStream = exports['json-stream'] = require('./json-stream');
 
 },{"./base":17,"./doc":18,"./dot":19,"./html":20,"./json":23,"./json-stream":22,"./landing":24,"./list":25,"./markdown":26,"./min":27,"./nyan":28,"./progress":29,"./spec":30,"./tap":31,"./xunit":32}],22:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module JSONStream
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
-var JSON = require('json3');
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
 
 /**
- * Expose `List`.
+ * Expose `JSONStream`.
  */
 
-exports = module.exports = List;
+exports = module.exports = JSONStream;
 
 /**
- * Initialize a new `List` test reporter.
+ * Constructs a new `JSONStream` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function List(runner) {
-  Base.call(this, runner);
+function JSONStream(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
   var total = runner.total;
 
-  runner.on('start', function() {
-    console.log(JSON.stringify(['start', { total: total }]));
+  runner.once(EVENT_RUN_BEGIN, function() {
+    writeEvent(['start', {total: total}]);
   });
 
-  runner.on('pass', function(test) {
-    console.log(JSON.stringify(['pass', clean(test)]));
+  runner.on(EVENT_TEST_PASS, function(test) {
+    writeEvent(['pass', clean(test)]);
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on(EVENT_TEST_FAIL, function(test, err) {
     test = clean(test);
     test.err = err.message;
     test.stack = err.stack || null;
-    console.log(JSON.stringify(['fail', test]));
+    writeEvent(['fail', test]);
   });
 
-  runner.on('end', function() {
-    process.stdout.write(JSON.stringify(['end', self.stats]));
+  runner.once(EVENT_RUN_END, function() {
+    writeEvent(['end', self.stats]);
   });
 }
 
 /**
- * Return a plain-object representation of `test`
- * free of cyclic properties etc.
+ * Mocha event to be written to the output stream.
+ * @typedef {Array} JSONStream~MochaEvent
+ */
+
+/**
+ * Writes Mocha event to reporter output stream.
  *
- * @api private
- * @param {Object} test
- * @return {Object}
+ * @private
+ * @param {JSONStream~MochaEvent} event - Mocha event to be output.
+ */
+function writeEvent(event) {
+  process.stdout.write(JSON.stringify(event) + '\n');
+}
+
+/**
+ * Returns an object literal representation of `test`
+ * free of cyclic properties, etc.
+ *
+ * @private
+ * @param {Test} test - Instance used as data source.
+ * @return {Object} object containing pared-down test instance data
  */
 function clean(test) {
   return {
@@ -2959,14 +3436,26 @@ function clean(test) {
   };
 }
 
+JSONStream.description = 'newline delimited JSON events';
+
 }).call(this,require('_process'))
-},{"./base":17,"_process":67,"json3":54}],23:[function(require,module,exports){
+},{"../runner":34,"./base":17,"_process":69}],23:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module JSON
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_TEST_END = constants.EVENT_TEST_END;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
 
 /**
  * Expose `JSON`.
@@ -2975,13 +3464,17 @@ var Base = require('./base');
 exports = module.exports = JSONReporter;
 
 /**
- * Initialize a new `JSON` reporter.
+ * Constructs a new `JSON` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class JSON
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function JSONReporter(runner) {
-  Base.call(this, runner);
+function JSONReporter(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
   var tests = [];
@@ -2989,23 +3482,23 @@ function JSONReporter(runner) {
   var failures = [];
   var passes = [];
 
-  runner.on('test end', function(test) {
+  runner.on(EVENT_TEST_END, function(test) {
     tests.push(test);
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     passes.push(test);
   });
 
-  runner.on('fail', function(test) {
+  runner.on(EVENT_TEST_FAIL, function(test) {
     failures.push(test);
   });
 
-  runner.on('pending', function(test) {
+  runner.on(EVENT_TEST_PENDING, function(test) {
     pending.push(test);
   });
 
-  runner.on('end', function() {
+  runner.once(EVENT_RUN_END, function() {
     var obj = {
       stats: self.stats,
       tests: tests.map(clean),
@@ -3024,24 +3517,53 @@ function JSONReporter(runner) {
  * Return a plain-object representation of `test`
  * free of cyclic properties etc.
  *
- * @api private
+ * @private
  * @param {Object} test
  * @return {Object}
  */
 function clean(test) {
+  var err = test.err || {};
+  if (err instanceof Error) {
+    err = errorJSON(err);
+  }
+
   return {
     title: test.title,
     fullTitle: test.fullTitle(),
     duration: test.duration,
     currentRetry: test.currentRetry(),
-    err: errorJSON(test.err || {})
+    err: cleanCycles(err)
   };
 }
 
 /**
- * Transform `error` into a JSON object.
+ * Replaces any circular references inside `obj` with '[object Object]'
  *
- * @api private
+ * @private
+ * @param {Object} obj
+ * @return {Object}
+ */
+function cleanCycles(obj) {
+  var cache = [];
+  return JSON.parse(
+    JSON.stringify(obj, function(key, value) {
+      if (typeof value === 'object' && value !== null) {
+        if (cache.indexOf(value) !== -1) {
+          // Instead of going in a circle, we'll print [object Object]
+          return '' + value;
+        }
+        cache.push(value);
+      }
+
+      return value;
+    })
+  );
+}
+
+/**
+ * Transform an Error object into a JSON object.
+ *
+ * @private
  * @param {Error} err
  * @return {Object}
  */
@@ -3053,15 +3575,27 @@ function errorJSON(err) {
   return res;
 }
 
+JSONReporter.description = 'single JSON object';
+
 }).call(this,require('_process'))
-},{"./base":17,"_process":67}],24:[function(require,module,exports){
+},{"../runner":34,"./base":17,"_process":69}],24:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module Landing
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var inherits = require('../utils').inherits;
+var constants = require('../runner').constants;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_END = constants.EVENT_TEST_END;
+var STATE_FAILED = require('../runnable').constants.STATE_FAILED;
+
 var cursor = Base.cursor;
 var color = Base.color;
 
@@ -3090,16 +3624,20 @@ Base.colors['plane crash'] = 31;
 Base.colors.runway = 90;
 
 /**
- * Initialize a new `Landing` reporter.
+ * Constructs a new `Landing` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function Landing(runner) {
-  Base.call(this, runner);
+function Landing(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
-  var width = Base.window.width * .75 | 0;
+  var width = (Base.window.width * 0.75) | 0;
   var total = runner.total;
   var stream = process.stdout;
   var plane = color('plane', '✈');
@@ -3111,17 +3649,17 @@ function Landing(runner) {
     return '  ' + color('runway', buf);
   }
 
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     stream.write('\n\n\n  ');
     cursor.hide();
   });
 
-  runner.on('test end', function(test) {
+  runner.on(EVENT_TEST_END, function(test) {
     // check if the plane crashed
-    var col = crashed === -1 ? width * ++n / total | 0 : crashed;
+    var col = crashed === -1 ? ((width * ++n) / total) | 0 : crashed;
 
     // show the crash
-    if (test.state === 'failed') {
+    if (test.state === STATE_FAILED) {
       plane = color('plane crash', '✈');
       crashed = col;
     }
@@ -3137,7 +3675,7 @@ function Landing(runner) {
     stream.write('\u001b[0m');
   });
 
-  runner.on('end', function() {
+  runner.once(EVENT_RUN_END, function() {
     cursor.show();
     console.log();
     self.epilogue();
@@ -3149,15 +3687,28 @@ function Landing(runner) {
  */
 inherits(Landing, Base);
 
+Landing.description = 'Unicode landing strip';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],25:[function(require,module,exports){
+},{"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":69}],25:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module List
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var inherits = require('../utils').inherits;
+var constants = require('../runner').constants;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_BEGIN = constants.EVENT_TEST_BEGIN;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
 var color = Base.color;
 var cursor = Base.cursor;
 
@@ -3168,45 +3719,49 @@ var cursor = Base.cursor;
 exports = module.exports = List;
 
 /**
- * Initialize a new `List` test reporter.
+ * Constructs a new `List` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function List(runner) {
-  Base.call(this, runner);
+function List(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
   var n = 0;
 
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     console.log();
   });
 
-  runner.on('test', function(test) {
+  runner.on(EVENT_TEST_BEGIN, function(test) {
     process.stdout.write(color('pass', '    ' + test.fullTitle() + ': '));
   });
 
-  runner.on('pending', function(test) {
-    var fmt = color('checkmark', '  -')
-      + color('pending', ' %s');
+  runner.on(EVENT_TEST_PENDING, function(test) {
+    var fmt = color('checkmark', '  -') + color('pending', ' %s');
     console.log(fmt, test.fullTitle());
   });
 
-  runner.on('pass', function(test) {
-    var fmt = color('checkmark', '  ' + Base.symbols.dot)
-      + color('pass', ' %s: ')
-      + color(test.speed, '%dms');
+  runner.on(EVENT_TEST_PASS, function(test) {
+    var fmt =
+      color('checkmark', '  ' + Base.symbols.ok) +
+      color('pass', ' %s: ') +
+      color(test.speed, '%dms');
     cursor.CR();
     console.log(fmt, test.fullTitle(), test.duration);
   });
 
-  runner.on('fail', function(test) {
+  runner.on(EVENT_TEST_FAIL, function(test) {
     cursor.CR();
     console.log(color('fail', '  %d) %s'), ++n, test.fullTitle());
   });
 
-  runner.on('end', self.epilogue.bind(self));
+  runner.once(EVENT_RUN_END, self.epilogue.bind(self));
 }
 
 /**
@@ -3214,15 +3769,26 @@ function List(runner) {
  */
 inherits(List, Base);
 
+List.description = 'like "spec" reporter but flat';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],26:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":69}],26:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module Markdown
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var utils = require('../utils');
+var constants = require('../runner').constants;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
 
 /**
  * Constants
@@ -3237,13 +3803,17 @@ var SUITE_PREFIX = '$';
 exports = module.exports = Markdown;
 
 /**
- * Initialize a new `Markdown` reporter.
+ * Constructs a new `Markdown` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function Markdown(runner) {
-  Base.call(this, runner);
+function Markdown(runner, options) {
+  Base.call(this, runner, options);
 
   var level = 0;
   var buf = '';
@@ -3256,7 +3826,7 @@ function Markdown(runner) {
     var ret = obj;
     var key = SUITE_PREFIX + suite.title;
 
-    obj = obj[key] = obj[key] || { suite: suite };
+    obj = obj[key] = obj[key] || {suite: suite};
     suite.suites.forEach(function(suite) {
       mapTOC(suite, obj);
     });
@@ -3289,18 +3859,18 @@ function Markdown(runner) {
 
   generateTOC(runner.suite);
 
-  runner.on('suite', function(suite) {
+  runner.on(EVENT_SUITE_BEGIN, function(suite) {
     ++level;
     var slug = utils.slug(suite.fullTitle());
     buf += '<a name="' + slug + '"></a>' + '\n';
     buf += title(suite.title) + '\n';
   });
 
-  runner.on('suite end', function() {
+  runner.on(EVENT_SUITE_END, function() {
     --level;
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     var code = utils.clean(test.body);
     buf += test.title + '.\n';
     buf += '\n```js\n';
@@ -3308,22 +3878,31 @@ function Markdown(runner) {
     buf += '```\n\n';
   });
 
-  runner.on('end', function() {
+  runner.once(EVENT_RUN_END, function() {
     process.stdout.write('# TOC\n');
     process.stdout.write(generateTOC(runner.suite));
     process.stdout.write(buf);
   });
 }
 
+Markdown.description = 'GitHub Flavored Markdown';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],27:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":69}],27:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module Min
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var inherits = require('../utils').inherits;
+var constants = require('../runner').constants;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
 
 /**
  * Expose `Min`.
@@ -3332,22 +3911,29 @@ var inherits = require('../utils').inherits;
 exports = module.exports = Min;
 
 /**
- * Initialize a new `Min` minimal test reporter (best used with --watch).
+ * Constructs a new `Min` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @description
+ * This minimal test reporter is best used with '--watch'.
+ *
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function Min(runner) {
-  Base.call(this, runner);
+function Min(runner, options) {
+  Base.call(this, runner, options);
 
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     // clear screen
     process.stdout.write('\u001b[2J');
     // set cursor position
     process.stdout.write('\u001b[1;3H');
   });
 
-  runner.on('end', this.epilogue.bind(this));
+  runner.once(EVENT_RUN_END, this.epilogue.bind(this));
 }
 
 /**
@@ -3355,15 +3941,27 @@ function Min(runner) {
  */
 inherits(Min, Base);
 
+Min.description = 'essentially just a summary';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],28:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":69}],28:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module Nyan
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
+var constants = require('../runner').constants;
 var inherits = require('../utils').inherits;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
 
 /**
  * Expose `Dot`.
@@ -3372,18 +3970,21 @@ var inherits = require('../utils').inherits;
 exports = module.exports = NyanCat;
 
 /**
- * Initialize a new `Dot` matrix test reporter.
+ * Constructs a new `Nyan` reporter instance.
  *
- * @param {Runner} runner
- * @api public
+ * @public
+ * @class Nyan
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-
-function NyanCat(runner) {
-  Base.call(this, runner);
+function NyanCat(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
-  var width = Base.window.width * .75 | 0;
-  var nyanCatWidth = this.nyanCatWidth = 11;
+  var width = (Base.window.width * 0.75) | 0;
+  var nyanCatWidth = (this.nyanCatWidth = 11);
 
   this.colorIndex = 0;
   this.numberOfLines = 4;
@@ -3391,26 +3992,26 @@ function NyanCat(runner) {
   this.scoreboardWidth = 5;
   this.tick = 0;
   this.trajectories = [[], [], [], []];
-  this.trajectoryWidthMax = (width - nyanCatWidth);
+  this.trajectoryWidthMax = width - nyanCatWidth;
 
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     Base.cursor.hide();
     self.draw();
   });
 
-  runner.on('pending', function() {
+  runner.on(EVENT_TEST_PENDING, function() {
     self.draw();
   });
 
-  runner.on('pass', function() {
+  runner.on(EVENT_TEST_PASS, function() {
     self.draw();
   });
 
-  runner.on('fail', function() {
+  runner.on(EVENT_TEST_FAIL, function() {
     self.draw();
   });
 
-  runner.on('end', function() {
+  runner.once(EVENT_RUN_END, function() {
     Base.cursor.show();
     for (var i = 0; i < self.numberOfLines; i++) {
       write('\n');
@@ -3427,7 +4028,7 @@ inherits(NyanCat, Base);
 /**
  * Draw the nyan cat
  *
- * @api private
+ * @private
  */
 
 NyanCat.prototype.draw = function() {
@@ -3442,7 +4043,7 @@ NyanCat.prototype.draw = function() {
  * Draw the "scoreboard" showing the number
  * of passes, failures and pending tests.
  *
- * @api private
+ * @private
  */
 
 NyanCat.prototype.drawScoreboard = function() {
@@ -3465,7 +4066,7 @@ NyanCat.prototype.drawScoreboard = function() {
 /**
  * Append the rainbow.
  *
- * @api private
+ * @private
  */
 
 NyanCat.prototype.appendRainbow = function() {
@@ -3484,7 +4085,7 @@ NyanCat.prototype.appendRainbow = function() {
 /**
  * Draw the rainbow.
  *
- * @api private
+ * @private
  */
 
 NyanCat.prototype.drawRainbow = function() {
@@ -3502,7 +4103,7 @@ NyanCat.prototype.drawRainbow = function() {
 /**
  * Draw the nyan cat
  *
- * @api private
+ * @private
  */
 NyanCat.prototype.drawNyanCat = function() {
   var self = this;
@@ -3536,7 +4137,7 @@ NyanCat.prototype.drawNyanCat = function() {
 /**
  * Draw nyan cat face.
  *
- * @api private
+ * @private
  * @return {string}
  */
 
@@ -3555,7 +4156,7 @@ NyanCat.prototype.face = function() {
 /**
  * Move cursor up `n`.
  *
- * @api private
+ * @private
  * @param {number} n
  */
 
@@ -3566,7 +4167,7 @@ NyanCat.prototype.cursorUp = function(n) {
 /**
  * Move cursor down `n`.
  *
- * @api private
+ * @private
  * @param {number} n
  */
 
@@ -3577,15 +4178,15 @@ NyanCat.prototype.cursorDown = function(n) {
 /**
  * Generate rainbow colors.
  *
- * @api private
+ * @private
  * @return {Array}
  */
 NyanCat.prototype.generateColors = function() {
   var colors = [];
 
-  for (var i = 0; i < (6 * 7); i++) {
+  for (var i = 0; i < 6 * 7; i++) {
     var pi3 = Math.floor(Math.PI / 3);
-    var n = (i * (1.0 / 6));
+    var n = i * (1.0 / 6);
     var r = Math.floor(3 * Math.sin(n) + 3);
     var g = Math.floor(3 * Math.sin(n + 2 * pi3) + 3);
     var b = Math.floor(3 * Math.sin(n + 4 * pi3) + 3);
@@ -3598,7 +4199,7 @@ NyanCat.prototype.generateColors = function() {
 /**
  * Apply rainbow to the given `str`.
  *
- * @api private
+ * @private
  * @param {string} str
  * @return {string}
  */
@@ -3620,14 +4221,24 @@ function write(string) {
   process.stdout.write(string);
 }
 
+NyanCat.description = '"nyan cat"';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],29:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":69}],29:[function(require,module,exports){
 (function (process){
+'use strict';
+/**
+ * @module Progress
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
+var constants = require('../runner').constants;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_TEST_END = constants.EVENT_TEST_END;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
 var inherits = require('../utils').inherits;
 var color = Base.color;
 var cursor = Base.cursor;
@@ -3645,41 +4256,46 @@ exports = module.exports = Progress;
 Base.colors.progress = 90;
 
 /**
- * Initialize a new `Progress` bar test reporter.
+ * Constructs a new `Progress` reporter instance.
  *
- * @api public
- * @param {Runner} runner
- * @param {Object} options
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
 function Progress(runner, options) {
-  Base.call(this, runner);
+  Base.call(this, runner, options);
 
   var self = this;
-  var width = Base.window.width * .50 | 0;
+  var width = (Base.window.width * 0.5) | 0;
   var total = runner.total;
   var complete = 0;
   var lastN = -1;
 
   // default chars
   options = options || {};
-  options.open = options.open || '[';
-  options.complete = options.complete || '▬';
-  options.incomplete = options.incomplete || Base.symbols.dot;
-  options.close = options.close || ']';
-  options.verbose = false;
+  var reporterOptions = options.reporterOptions || {};
+
+  options.open = reporterOptions.open || '[';
+  options.complete = reporterOptions.complete || '▬';
+  options.incomplete = reporterOptions.incomplete || Base.symbols.dot;
+  options.close = reporterOptions.close || ']';
+  options.verbose = reporterOptions.verbose || false;
 
   // tests started
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     console.log();
     cursor.hide();
   });
 
   // tests complete
-  runner.on('test end', function() {
+  runner.on(EVENT_TEST_END, function() {
     complete++;
 
     var percent = complete / total;
-    var n = width * percent | 0;
+    var n = (width * percent) | 0;
     var i = width - n;
 
     if (n === lastN && !options.verbose) {
@@ -3701,7 +4317,7 @@ function Progress(runner, options) {
 
   // tests are complete, output some stats
   // and the failures if any
-  runner.on('end', function() {
+  runner.once(EVENT_RUN_END, function() {
     cursor.show();
     console.log();
     self.epilogue();
@@ -3713,13 +4329,27 @@ function Progress(runner, options) {
  */
 inherits(Progress, Base);
 
+Progress.description = 'a progress bar';
+
 }).call(this,require('_process'))
-},{"../utils":38,"./base":17,"_process":67}],30:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":69}],30:[function(require,module,exports){
+'use strict';
+/**
+ * @module Spec
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
+var constants = require('../runner').constants;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
 var inherits = require('../utils').inherits;
 var color = Base.color;
 
@@ -3730,13 +4360,17 @@ var color = Base.color;
 exports = module.exports = Spec;
 
 /**
- * Initialize a new `Spec` test reporter.
+ * Constructs a new `Spec` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function Spec(runner) {
-  Base.call(this, runner);
+function Spec(runner, options) {
+  Base.call(this, runner, options);
 
   var self = this;
   var indents = 0;
@@ -3746,48 +4380,50 @@ function Spec(runner) {
     return Array(indents).join('  ');
   }
 
-  runner.on('start', function() {
+  runner.on(EVENT_RUN_BEGIN, function() {
     console.log();
   });
 
-  runner.on('suite', function(suite) {
+  runner.on(EVENT_SUITE_BEGIN, function(suite) {
     ++indents;
     console.log(color('suite', '%s%s'), indent(), suite.title);
   });
 
-  runner.on('suite end', function() {
+  runner.on(EVENT_SUITE_END, function() {
     --indents;
     if (indents === 1) {
       console.log();
     }
   });
 
-  runner.on('pending', function(test) {
+  runner.on(EVENT_TEST_PENDING, function(test) {
     var fmt = indent() + color('pending', '  - %s');
     console.log(fmt, test.title);
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     var fmt;
     if (test.speed === 'fast') {
-      fmt = indent()
-        + color('checkmark', '  ' + Base.symbols.ok)
-        + color('pass', ' %s');
+      fmt =
+        indent() +
+        color('checkmark', '  ' + Base.symbols.ok) +
+        color('pass', ' %s');
       console.log(fmt, test.title);
     } else {
-      fmt = indent()
-        + color('checkmark', '  ' + Base.symbols.ok)
-        + color('pass', ' %s')
-        + color(test.speed, ' (%dms)');
+      fmt =
+        indent() +
+        color('checkmark', '  ' + Base.symbols.ok) +
+        color('pass', ' %s') +
+        color(test.speed, ' (%dms)');
       console.log(fmt, test.title, test.duration);
     }
   });
 
-  runner.on('fail', function(test) {
+  runner.on(EVENT_TEST_FAIL, function(test) {
     console.log(indent() + color('fail', '  %d) %s'), ++n, test.title);
   });
 
-  runner.on('end', self.epilogue.bind(self));
+  runner.once(EVENT_RUN_END, self.epilogue.bind(self));
 }
 
 /**
@@ -3795,12 +4431,29 @@ function Spec(runner) {
  */
 inherits(Spec, Base);
 
-},{"../utils":38,"./base":17}],31:[function(require,module,exports){
+Spec.description = 'hierarchical & verbose [default]';
+
+},{"../runner":34,"../utils":38,"./base":17}],31:[function(require,module,exports){
+(function (process){
+'use strict';
+/**
+ * @module TAP
+ */
 /**
  * Module dependencies.
  */
 
+var util = require('util');
 var Base = require('./base');
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+var EVENT_TEST_END = constants.EVENT_TEST_END;
+var inherits = require('../utils').inherits;
+var sprintf = util.format;
 
 /**
  * Expose `TAP`.
@@ -3809,87 +4462,305 @@ var Base = require('./base');
 exports = module.exports = TAP;
 
 /**
- * Initialize a new `TAP` reporter.
+ * Constructs a new `TAP` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
-function TAP(runner) {
-  Base.call(this, runner);
+function TAP(runner, options) {
+  Base.call(this, runner, options);
 
+  var self = this;
   var n = 1;
-  var passes = 0;
-  var failures = 0;
 
-  runner.on('start', function() {
-    var total = runner.grepTotal(runner.suite);
-    console.log('%d..%d', 1, total);
+  var tapVersion = '12';
+  if (options && options.reporterOptions) {
+    if (options.reporterOptions.tapVersion) {
+      tapVersion = options.reporterOptions.tapVersion.toString();
+    }
+  }
+
+  this._producer = createProducer(tapVersion);
+
+  runner.once(EVENT_RUN_BEGIN, function() {
+    var ntests = runner.grepTotal(runner.suite);
+    self._producer.writeVersion();
+    self._producer.writePlan(ntests);
   });
 
-  runner.on('test end', function() {
+  runner.on(EVENT_TEST_END, function() {
     ++n;
   });
 
-  runner.on('pending', function(test) {
-    console.log('ok %d %s # SKIP -', n, title(test));
+  runner.on(EVENT_TEST_PENDING, function(test) {
+    self._producer.writePending(n, test);
   });
 
-  runner.on('pass', function(test) {
-    passes++;
-    console.log('ok %d %s', n, title(test));
+  runner.on(EVENT_TEST_PASS, function(test) {
+    self._producer.writePass(n, test);
   });
 
-  runner.on('fail', function(test, err) {
-    failures++;
-    console.log('not ok %d %s', n, title(test));
-    if (err.stack) {
-      console.log(err.stack.replace(/^/gm, '  '));
-    }
+  runner.on(EVENT_TEST_FAIL, function(test, err) {
+    self._producer.writeFail(n, test, err);
   });
 
-  runner.on('end', function() {
-    console.log('# tests ' + (passes + failures));
-    console.log('# pass ' + passes);
-    console.log('# fail ' + failures);
+  runner.once(EVENT_RUN_END, function() {
+    self._producer.writeEpilogue(runner.stats);
   });
 }
 
 /**
- * Return a TAP-safe title of `test`
+ * Inherit from `Base.prototype`.
+ */
+inherits(TAP, Base);
+
+/**
+ * Returns a TAP-safe title of `test`.
  *
- * @api private
- * @param {Object} test
- * @return {String}
+ * @private
+ * @param {Test} test - Test instance.
+ * @return {String} title with any hash character removed
  */
 function title(test) {
   return test.fullTitle().replace(/#/g, '');
 }
 
-},{"./base":17}],32:[function(require,module,exports){
+/**
+ * Writes newline-terminated formatted string to reporter output stream.
+ *
+ * @private
+ * @param {string} format - `printf`-like format string
+ * @param {...*} [varArgs] - Format string arguments
+ */
+function println(format, varArgs) {
+  var vargs = Array.from(arguments);
+  vargs[0] += '\n';
+  process.stdout.write(sprintf.apply(null, vargs));
+}
+
+/**
+ * Returns a `tapVersion`-appropriate TAP producer instance, if possible.
+ *
+ * @private
+ * @param {string} tapVersion - Version of TAP specification to produce.
+ * @returns {TAPProducer} specification-appropriate instance
+ * @throws {Error} if specification version has no associated producer.
+ */
+function createProducer(tapVersion) {
+  var producers = {
+    '12': new TAP12Producer(),
+    '13': new TAP13Producer()
+  };
+  var producer = producers[tapVersion];
+
+  if (!producer) {
+    throw new Error(
+      'invalid or unsupported TAP version: ' + JSON.stringify(tapVersion)
+    );
+  }
+
+  return producer;
+}
+
+/**
+ * @summary
+ * Constructs a new TAPProducer.
+ *
+ * @description
+ * <em>Only</em> to be used as an abstract base class.
+ *
+ * @private
+ * @constructor
+ */
+function TAPProducer() {}
+
+/**
+ * Writes the TAP version to reporter output stream.
+ *
+ * @abstract
+ */
+TAPProducer.prototype.writeVersion = function() {};
+
+/**
+ * Writes the plan to reporter output stream.
+ *
+ * @abstract
+ * @param {number} ntests - Number of tests that are planned to run.
+ */
+TAPProducer.prototype.writePlan = function(ntests) {
+  println('%d..%d', 1, ntests);
+};
+
+/**
+ * Writes that test passed to reporter output stream.
+ *
+ * @abstract
+ * @param {number} n - Index of test that passed.
+ * @param {Test} test - Instance containing test information.
+ */
+TAPProducer.prototype.writePass = function(n, test) {
+  println('ok %d %s', n, title(test));
+};
+
+/**
+ * Writes that test was skipped to reporter output stream.
+ *
+ * @abstract
+ * @param {number} n - Index of test that was skipped.
+ * @param {Test} test - Instance containing test information.
+ */
+TAPProducer.prototype.writePending = function(n, test) {
+  println('ok %d %s # SKIP -', n, title(test));
+};
+
+/**
+ * Writes that test failed to reporter output stream.
+ *
+ * @abstract
+ * @param {number} n - Index of test that failed.
+ * @param {Test} test - Instance containing test information.
+ * @param {Error} err - Reason the test failed.
+ */
+TAPProducer.prototype.writeFail = function(n, test, err) {
+  println('not ok %d %s', n, title(test));
+};
+
+/**
+ * Writes the summary epilogue to reporter output stream.
+ *
+ * @abstract
+ * @param {Object} stats - Object containing run statistics.
+ */
+TAPProducer.prototype.writeEpilogue = function(stats) {
+  // :TBD: Why is this not counting pending tests?
+  println('# tests ' + (stats.passes + stats.failures));
+  println('# pass ' + stats.passes);
+  // :TBD: Why are we not showing pending results?
+  println('# fail ' + stats.failures);
+};
+
+/**
+ * @summary
+ * Constructs a new TAP12Producer.
+ *
+ * @description
+ * Produces output conforming to the TAP12 specification.
+ *
+ * @private
+ * @constructor
+ * @extends TAPProducer
+ * @see {@link https://testanything.org/tap-specification.html|Specification}
+ */
+function TAP12Producer() {
+  /**
+   * Writes that test failed to reporter output stream, with error formatting.
+   * @override
+   */
+  this.writeFail = function(n, test, err) {
+    TAPProducer.prototype.writeFail.call(this, n, test, err);
+    if (err.message) {
+      println(err.message.replace(/^/gm, '  '));
+    }
+    if (err.stack) {
+      println(err.stack.replace(/^/gm, '  '));
+    }
+  };
+}
+
+/**
+ * Inherit from `TAPProducer.prototype`.
+ */
+inherits(TAP12Producer, TAPProducer);
+
+/**
+ * @summary
+ * Constructs a new TAP13Producer.
+ *
+ * @description
+ * Produces output conforming to the TAP13 specification.
+ *
+ * @private
+ * @constructor
+ * @extends TAPProducer
+ * @see {@link https://testanything.org/tap-version-13-specification.html|Specification}
+ */
+function TAP13Producer() {
+  /**
+   * Writes the TAP version to reporter output stream.
+   * @override
+   */
+  this.writeVersion = function() {
+    println('TAP version 13');
+  };
+
+  /**
+   * Writes that test failed to reporter output stream, with error formatting.
+   * @override
+   */
+  this.writeFail = function(n, test, err) {
+    TAPProducer.prototype.writeFail.call(this, n, test, err);
+    var emitYamlBlock = err.message != null || err.stack != null;
+    if (emitYamlBlock) {
+      println(indent(1) + '---');
+      if (err.message) {
+        println(indent(2) + 'message: |-');
+        println(err.message.replace(/^/gm, indent(3)));
+      }
+      if (err.stack) {
+        println(indent(2) + 'stack: |-');
+        println(err.stack.replace(/^/gm, indent(3)));
+      }
+      println(indent(1) + '...');
+    }
+  };
+
+  function indent(level) {
+    return Array(level + 1).join('  ');
+  }
+}
+
+/**
+ * Inherit from `TAPProducer.prototype`.
+ */
+inherits(TAP13Producer, TAPProducer);
+
+TAP.description = 'TAP-compatible output';
+
+}).call(this,require('_process'))
+},{"../runner":34,"../utils":38,"./base":17,"_process":69,"util":89}],32:[function(require,module,exports){
 (function (process,global){
+'use strict';
+/**
+ * @module XUnit
+ */
 /**
  * Module dependencies.
  */
 
 var Base = require('./base');
 var utils = require('../utils');
-var inherits = utils.inherits;
 var fs = require('fs');
-var escape = utils.escape;
 var mkdirp = require('mkdirp');
 var path = require('path');
+var errors = require('../errors');
+var createUnsupportedError = errors.createUnsupportedError;
+var constants = require('../runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+var STATE_FAILED = require('../runnable').constants.STATE_FAILED;
+var inherits = utils.inherits;
+var escape = utils.escape;
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
  */
-
-/* eslint-disable no-unused-vars, no-native-reassign */
 var Date = global.Date;
-var setTimeout = global.setTimeout;
-var setInterval = global.setInterval;
-var clearTimeout = global.clearTimeout;
-var clearInterval = global.clearInterval;
-/* eslint-enable no-unused-vars, no-native-reassign */
 
 /**
  * Expose `XUnit`.
@@ -3898,48 +4769,73 @@ var clearInterval = global.clearInterval;
 exports = module.exports = XUnit;
 
 /**
- * Initialize a new `XUnit` reporter.
+ * Constructs a new `XUnit` reporter instance.
  *
- * @api public
- * @param {Runner} runner
+ * @public
+ * @class
+ * @memberof Mocha.reporters
+ * @extends Mocha.reporters.Base
+ * @param {Runner} runner - Instance triggers reporter actions.
+ * @param {Object} [options] - runner options
  */
 function XUnit(runner, options) {
-  Base.call(this, runner);
+  Base.call(this, runner, options);
 
   var stats = this.stats;
   var tests = [];
   var self = this;
 
-  if (options.reporterOptions && options.reporterOptions.output) {
-    if (!fs.createWriteStream) {
-      throw new Error('file output not supported in browser');
+  // the name of the test suite, as it will appear in the resulting XML file
+  var suiteName;
+
+  // the default name of the test suite if none is provided
+  var DEFAULT_SUITE_NAME = 'Mocha Tests';
+
+  if (options && options.reporterOptions) {
+    if (options.reporterOptions.output) {
+      if (!fs.createWriteStream) {
+        throw createUnsupportedError('file output not supported in browser');
+      }
+
+      mkdirp.sync(path.dirname(options.reporterOptions.output));
+      self.fileStream = fs.createWriteStream(options.reporterOptions.output);
     }
-    mkdirp.sync(path.dirname(options.reporterOptions.output));
-    self.fileStream = fs.createWriteStream(options.reporterOptions.output);
+
+    // get the suite name from the reporter options (if provided)
+    suiteName = options.reporterOptions.suiteName;
   }
 
-  runner.on('pending', function(test) {
+  // fall back to the default suite name
+  suiteName = suiteName || DEFAULT_SUITE_NAME;
+
+  runner.on(EVENT_TEST_PENDING, function(test) {
     tests.push(test);
   });
 
-  runner.on('pass', function(test) {
+  runner.on(EVENT_TEST_PASS, function(test) {
     tests.push(test);
   });
 
-  runner.on('fail', function(test) {
+  runner.on(EVENT_TEST_FAIL, function(test) {
     tests.push(test);
   });
 
-  runner.on('end', function() {
-    self.write(tag('testsuite', {
-      name: 'Mocha Tests',
-      tests: stats.tests,
-      failures: stats.failures,
-      errors: stats.failures,
-      skipped: stats.tests - stats.failures - stats.passes,
-      timestamp: (new Date()).toUTCString(),
-      time: (stats.duration / 1000) || 0
-    }, false));
+  runner.once(EVENT_RUN_END, function() {
+    self.write(
+      tag(
+        'testsuite',
+        {
+          name: suiteName,
+          tests: stats.tests,
+          failures: 0,
+          errors: stats.failures,
+          skipped: stats.tests - stats.failures - stats.passes,
+          timestamp: new Date().toUTCString(),
+          time: stats.duration / 1000 || 0
+        },
+        false
+      )
+    );
 
     tests.forEach(function(t) {
       self.test(t);
@@ -3991,15 +4887,33 @@ XUnit.prototype.write = function(line) {
  * @param {Test} test
  */
 XUnit.prototype.test = function(test) {
+  Base.useColors = false;
+
   var attrs = {
     classname: test.parent.fullTitle(),
     name: test.title,
-    time: (test.duration / 1000) || 0
+    time: test.duration / 1000 || 0
   };
 
-  if (test.state === 'failed') {
+  if (test.state === STATE_FAILED) {
     var err = test.err;
-    this.write(tag('testcase', attrs, false, tag('failure', {}, false, escape(err.message) + '\n' + escape(err.stack))));
+    var diff =
+      Base.hideDiff || !err.actual || !err.expected
+        ? ''
+        : '\n' + Base.generateDiff(err.actual, err.expected);
+    this.write(
+      tag(
+        'testcase',
+        attrs,
+        false,
+        tag(
+          'failure',
+          {},
+          false,
+          escape(err.message) + escape(diff) + '\n' + escape(err.stack)
+        )
+      )
+    );
   } else if (test.isPending()) {
     this.write(tag('testcase', attrs, false, tag('skipped', {}, true)));
   } else {
@@ -4034,53 +4948,39 @@ function tag(name, attrs, close, content) {
   return tag;
 }
 
+XUnit.description = 'XUnit-compatible XML output';
+
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../utils":38,"./base":17,"_process":67,"fs":42,"mkdirp":64,"path":42}],33:[function(require,module,exports){
+},{"../errors":6,"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":69,"fs":42,"mkdirp":59,"path":42}],33:[function(require,module,exports){
 (function (global){
-/**
- * Module dependencies.
- */
+'use strict';
 
 var EventEmitter = require('events').EventEmitter;
-var JSON = require('json3');
 var Pending = require('./pending');
 var debug = require('debug')('mocha:runnable');
-var milliseconds = require('./ms');
+var milliseconds = require('ms');
 var utils = require('./utils');
-var create = require('lodash.create');
+var createInvalidExceptionError = require('./errors')
+  .createInvalidExceptionError;
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
  */
-
-/* eslint-disable no-unused-vars, no-native-reassign */
 var Date = global.Date;
 var setTimeout = global.setTimeout;
-var setInterval = global.setInterval;
 var clearTimeout = global.clearTimeout;
-var clearInterval = global.clearInterval;
-/* eslint-enable no-unused-vars, no-native-reassign */
-
-/**
- * Object#toString().
- */
-
 var toString = Object.prototype.toString;
 
-/**
- * Expose `Runnable`.
- */
-
 module.exports = Runnable;
 
 /**
  * Initialize a new `Runnable` with the given `title` and callback `fn`.
  *
+ * @class
+ * @extends external:EventEmitter
+ * @public
  * @param {String} title
  * @param {Function} fn
- * @api private
- * @param {string} title
- * @param {Function} fn
  */
 function Runnable(title, fn) {
   this.title = title;
@@ -4092,7 +4992,6 @@ function Runnable(title, fn) {
   this._slow = 75;
   this._enableTimeouts = true;
   this.timedOut = false;
-  this._trace = new Error('done() called multiple times');
   this._retries = -1;
   this._currentRetry = 0;
   this.pending = false;
@@ -4101,28 +5000,46 @@ function Runnable(title, fn) {
 /**
  * Inherit from `EventEmitter.prototype`.
  */
-Runnable.prototype = create(EventEmitter.prototype, {
-  constructor: Runnable
-});
+utils.inherits(Runnable, EventEmitter);
 
 /**
- * Set & get timeout `ms`.
+ * Get current timeout value in msecs.
  *
- * @api private
- * @param {number|string} ms
- * @return {Runnable|number} ms or Runnable instance.
+ * @private
+ * @returns {number} current timeout threshold value
+ */
+/**
+ * @summary
+ * Set timeout threshold value (msecs).
+ *
+ * @description
+ * A string argument can use shorthand (e.g., "2s") and will be converted.
+ * The value will be clamped to range [<code>0</code>, <code>2^<sup>31</sup>-1</code>].
+ * If clamped value matches either range endpoint, timeouts will be disabled.
+ *
+ * @private
+ * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout#Maximum_delay_value}
+ * @param {number|string} ms - Timeout threshold value.
+ * @returns {Runnable} this
+ * @chainable
  */
 Runnable.prototype.timeout = function(ms) {
   if (!arguments.length) {
     return this._timeout;
   }
-  // see #1652 for reasoning
-  if (ms === 0 || ms > Math.pow(2, 31)) {
-    this._enableTimeouts = false;
-  }
   if (typeof ms === 'string') {
     ms = milliseconds(ms);
   }
+
+  // Clamp to range
+  var INT_MAX = Math.pow(2, 31) - 1;
+  var range = [0, INT_MAX];
+  ms = utils.clamp(ms, range);
+
+  // see #1652 for reasoning
+  if (ms === range[0] || ms === range[1]) {
+    this._enableTimeouts = false;
+  }
   debug('timeout %d', ms);
   this._timeout = ms;
   if (this.timer) {
@@ -4132,20 +5049,20 @@ Runnable.prototype.timeout = function(ms) {
 };
 
 /**
- * Set & get slow `ms`.
+ * Set or get slow `ms`.
  *
- * @api private
+ * @private
  * @param {number|string} ms
  * @return {Runnable|number} ms or Runnable instance.
  */
 Runnable.prototype.slow = function(ms) {
-  if (typeof ms === 'undefined') {
+  if (!arguments.length || typeof ms === 'undefined') {
     return this._slow;
   }
   if (typeof ms === 'string') {
     ms = milliseconds(ms);
   }
-  debug('timeout %d', ms);
+  debug('slow %d', ms);
   this._slow = ms;
   return this;
 };
@@ -4153,7 +5070,7 @@ Runnable.prototype.slow = function(ms) {
 /**
  * Set and get whether timeout is `enabled`.
  *
- * @api private
+ * @private
  * @param {boolean} enabled
  * @return {Runnable|boolean} enabled or Runnable instance.
  */
@@ -4169,7 +5086,8 @@ Runnable.prototype.enableTimeouts = function(enabled) {
 /**
  * Halt and mark as pending.
  *
- * @api public
+ * @memberof Mocha.Runnable
+ * @public
  */
 Runnable.prototype.skip = function() {
   throw new Pending('sync skip');
@@ -4178,16 +5096,34 @@ Runnable.prototype.skip = function() {
 /**
  * Check if this runnable or its parent suite is marked as pending.
  *
- * @api private
+ * @private
  */
 Runnable.prototype.isPending = function() {
   return this.pending || (this.parent && this.parent.isPending());
 };
 
 /**
- * Set number of retries.
+ * Return `true` if this Runnable has failed.
+ * @return {boolean}
+ * @private
+ */
+Runnable.prototype.isFailed = function() {
+  return !this.isPending() && this.state === constants.STATE_FAILED;
+};
+
+/**
+ * Return `true` if this Runnable has passed.
+ * @return {boolean}
+ * @private
+ */
+Runnable.prototype.isPassed = function() {
+  return !this.isPending() && this.state === constants.STATE_PASSED;
+};
+
+/**
+ * Set or get number of retries.
  *
- * @api private
+ * @private
  */
 Runnable.prototype.retries = function(n) {
   if (!arguments.length) {
@@ -4197,9 +5133,9 @@ Runnable.prototype.retries = function(n) {
 };
 
 /**
- * Get current retry
+ * Set or get current retry
  *
- * @api private
+ * @private
  */
 Runnable.prototype.currentRetry = function(n) {
   if (!arguments.length) {
@@ -4212,17 +5148,29 @@ Runnable.prototype.currentRetry = function(n) {
  * Return the full title generated by recursively concatenating the parent's
  * full title.
  *
- * @api public
+ * @memberof Mocha.Runnable
+ * @public
  * @return {string}
  */
 Runnable.prototype.fullTitle = function() {
-  return this.parent.fullTitle() + ' ' + this.title;
+  return this.titlePath().join(' ');
+};
+
+/**
+ * Return the title path generated by concatenating the parent's title path with the title.
+ *
+ * @memberof Mocha.Runnable
+ * @public
+ * @return {string}
+ */
+Runnable.prototype.titlePath = function() {
+  return this.parent.titlePath().concat([this.title]);
 };
 
 /**
  * Clear the timeout.
  *
- * @api private
+ * @private
  */
 Runnable.prototype.clearTimeout = function() {
   clearTimeout(this.timer);
@@ -4231,28 +5179,32 @@ Runnable.prototype.clearTimeout = function() {
 /**
  * Inspect the runnable void of private properties.
  *
- * @api private
+ * @private
  * @return {string}
  */
 Runnable.prototype.inspect = function() {
-  return JSON.stringify(this, function(key, val) {
-    if (key[0] === '_') {
-      return;
-    }
-    if (key === 'parent') {
-      return '#<Suite>';
-    }
-    if (key === 'ctx') {
-      return '#<Context>';
-    }
-    return val;
-  }, 2);
+  return JSON.stringify(
+    this,
+    function(key, val) {
+      if (key[0] === '_') {
+        return;
+      }
+      if (key === 'parent') {
+        return '#<Suite>';
+      }
+      if (key === 'ctx') {
+        return '#<Context>';
+      }
+      return val;
+    },
+    2
+  );
 };
 
 /**
  * Reset the timeout.
  *
- * @api private
+ * @private
  */
 Runnable.prototype.resetTimeout = function() {
   var self = this;
@@ -4266,15 +5218,15 @@ Runnable.prototype.resetTimeout = function() {
     if (!self._enableTimeouts) {
       return;
     }
-    self.callback(new Error('timeout of ' + ms + 'ms exceeded. Ensure the done() callback is being called in this test.'));
+    self.callback(self._timeoutError(ms));
     self.timedOut = true;
   }, ms);
 };
 
 /**
- * Whitelist a list of globals for this test run.
+ * Set or get a list of whitelisted globals for this test run.
  *
- * @api private
+ * @private
  * @param {string[]} globals
  */
 Runnable.prototype.globals = function(globals) {
@@ -4288,7 +5240,7 @@ Runnable.prototype.globals = function(globals) {
  * Run the test and invoke `fn(err)`.
  *
  * @param {Function} fn
- * @api private
+ * @private
  */
 Runnable.prototype.run = function(fn) {
   var self = this;
@@ -4308,7 +5260,13 @@ Runnable.prototype.run = function(fn) {
       return;
     }
     emitted = true;
-    self.emit('error', err || new Error('done() called multiple times; stacktrace may be inaccurate'));
+    var msg = 'done() called multiple times';
+    if (err && err.message) {
+      err.message += " (and Mocha's " + msg + ')';
+      self.emit('error', err);
+    } else {
+      self.emit('error', new Error(msg));
+    }
   }
 
   // finished
@@ -4317,15 +5275,16 @@ Runnable.prototype.run = function(fn) {
     if (self.timedOut) {
       return;
     }
+
     if (finished) {
-      return multiple(err || self._trace);
+      return multiple(err);
     }
 
     self.clearTimeout();
     self.duration = new Date() - start;
     finished = true;
     if (!err && self.duration > ms && self._enableTimeouts) {
-      err = new Error('timeout of ' + ms + 'ms exceeded. Ensure the done() callback is being called in this test.');
+      err = self._timeoutError(ms);
     }
     fn(err);
   }
@@ -4352,18 +5311,22 @@ Runnable.prototype.run = function(fn) {
     try {
       callFnAsync(this.fn);
     } catch (err) {
-      done(utils.getError(err));
+      emitted = true;
+      done(Runnable.toValueOrError(err));
     }
     return;
   }
 
   if (this.allowUncaught) {
-    callFn(this.fn);
-    done();
-    return;
-  }
-
-  // sync or promise-returning
+    if (this.isPending()) {
+      done();
+    } else {
+      callFn(this.fn);
+    }
+    return;
+  }
+
+  // sync or promise-returning
   try {
     if (this.isPending()) {
       done();
@@ -4371,15 +5334,16 @@ Runnable.prototype.run = function(fn) {
       callFn(this.fn);
     }
   } catch (err) {
-    done(utils.getError(err));
+    emitted = true;
+    done(Runnable.toValueOrError(err));
   }
 
   function callFn(fn) {
     var result = fn.call(ctx);
     if (result && typeof result.then === 'function') {
       self.resetTimeout();
-      result
-        .then(function() {
+      result.then(
+        function() {
           done();
           // Return null so libraries like bluebird do not warn about
           // subsequently constructed Promises.
@@ -4387,10 +5351,15 @@ Runnable.prototype.run = function(fn) {
         },
         function(reason) {
           done(reason || new Error('Promise rejected with no or falsy reason'));
-        });
+        }
+      );
     } else {
       if (self.asyncOnly) {
-        return done(new Error('--async-only option in use without declaring `done()` or returning a promise'));
+        return done(
+          new Error(
+            '--async-only option in use without declaring `done()` or returning a promise'
+          )
+        );
       }
 
       done();
@@ -4404,13 +5373,18 @@ Runnable.prototype.run = function(fn) {
       }
       if (err) {
         if (Object.prototype.toString.call(err) === '[object Object]') {
-          return done(new Error('done() invoked with non-Error: '
-            + JSON.stringify(err)));
+          return done(
+            new Error('done() invoked with non-Error: ' + JSON.stringify(err))
+          );
         }
         return done(new Error('done() invoked with non-Error: ' + err));
       }
       if (result && utils.isPromise(result)) {
-        return done(new Error('Resolution method is overspecified. Specify a callback *or* return a Promise; not both.'));
+        return done(
+          new Error(
+            'Resolution method is overspecified. Specify a callback *or* return a Promise; not both.'
+          )
+        );
       }
 
       done();
@@ -4418,33 +5392,100 @@ Runnable.prototype.run = function(fn) {
   }
 };
 
+/**
+ * Instantiates a "timeout" error
+ *
+ * @param {number} ms - Timeout (in milliseconds)
+ * @returns {Error} a "timeout" error
+ * @private
+ */
+Runnable.prototype._timeoutError = function(ms) {
+  var msg =
+    'Timeout of ' +
+    ms +
+    'ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.';
+  if (this.file) {
+    msg += ' (' + this.file + ')';
+  }
+  return new Error(msg);
+};
+
+var constants = utils.defineConstants(
+  /**
+   * {@link Runnable}-related constants.
+   * @public
+   * @memberof Runnable
+   * @readonly
+   * @static
+   * @alias constants
+   * @enum {string}
+   */
+  {
+    /**
+     * Value of `state` prop when a `Runnable` has failed
+     */
+    STATE_FAILED: 'failed',
+    /**
+     * Value of `state` prop when a `Runnable` has passed
+     */
+    STATE_PASSED: 'passed'
+  }
+);
+
+/**
+ * Given `value`, return identity if truthy, otherwise create an "invalid exception" error and return that.
+ * @param {*} [value] - Value to return, if present
+ * @returns {*|Error} `value`, otherwise an `Error`
+ * @private
+ */
+Runnable.toValueOrError = function(value) {
+  return (
+    value ||
+    createInvalidExceptionError(
+      'Runnable failed with falsy or undefined exception. Please throw an Error instead.',
+      value
+    )
+  );
+};
+
+Runnable.constants = constants;
+
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./ms":15,"./pending":16,"./utils":38,"debug":2,"events":3,"json3":54,"lodash.create":60}],34:[function(require,module,exports){
+},{"./errors":6,"./pending":16,"./utils":38,"debug":45,"events":50,"ms":60}],34:[function(require,module,exports){
 (function (process,global){
+'use strict';
+
 /**
  * Module dependencies.
  */
-
+var util = require('util');
 var EventEmitter = require('events').EventEmitter;
 var Pending = require('./pending');
 var utils = require('./utils');
 var inherits = utils.inherits;
 var debug = require('debug')('mocha:runner');
 var Runnable = require('./runnable');
-var filter = utils.filter;
-var indexOf = utils.indexOf;
-var some = utils.some;
-var keys = utils.keys;
+var Suite = require('./suite');
+var HOOK_TYPE_BEFORE_EACH = Suite.constants.HOOK_TYPE_BEFORE_EACH;
+var HOOK_TYPE_AFTER_EACH = Suite.constants.HOOK_TYPE_AFTER_EACH;
+var HOOK_TYPE_AFTER_ALL = Suite.constants.HOOK_TYPE_AFTER_ALL;
+var HOOK_TYPE_BEFORE_ALL = Suite.constants.HOOK_TYPE_BEFORE_ALL;
+var EVENT_ROOT_SUITE_RUN = Suite.constants.EVENT_ROOT_SUITE_RUN;
+var STATE_FAILED = Runnable.constants.STATE_FAILED;
+var STATE_PASSED = Runnable.constants.STATE_PASSED;
+var dQuote = utils.dQuote;
+var ngettext = utils.ngettext;
+var sQuote = utils.sQuote;
 var stackFilter = utils.stackTraceFilter();
 var stringify = utils.stringify;
 var type = utils.type;
-var undefinedError = utils.undefinedError;
-var isArray = utils.isArray;
+var createInvalidExceptionError = require('./errors')
+  .createInvalidExceptionError;
 
 /**
  * Non-enumerable globals.
+ * @readonly
  */
-
 var globals = [
   'setTimeout',
   'clearTimeout',
@@ -4456,30 +5497,84 @@ var globals = [
   'clearImmediate'
 ];
 
-/**
- * Expose `Runner`.
- */
+var constants = utils.defineConstants(
+  /**
+   * {@link Runner}-related constants.
+   * @public
+   * @memberof Runner
+   * @readonly
+   * @alias constants
+   * @static
+   * @enum {string}
+   */
+  {
+    /**
+     * Emitted when {@link Hook} execution begins
+     */
+    EVENT_HOOK_BEGIN: 'hook',
+    /**
+     * Emitted when {@link Hook} execution ends
+     */
+    EVENT_HOOK_END: 'hook end',
+    /**
+     * Emitted when Root {@link Suite} execution begins (all files have been parsed and hooks/tests are ready for execution)
+     */
+    EVENT_RUN_BEGIN: 'start',
+    /**
+     * Emitted when Root {@link Suite} execution has been delayed via `delay` option
+     */
+    EVENT_DELAY_BEGIN: 'waiting',
+    /**
+     * Emitted when delayed Root {@link Suite} execution is triggered by user via `global.run()`
+     */
+    EVENT_DELAY_END: 'ready',
+    /**
+     * Emitted when Root {@link Suite} execution ends
+     */
+    EVENT_RUN_END: 'end',
+    /**
+     * Emitted when {@link Suite} execution begins
+     */
+    EVENT_SUITE_BEGIN: 'suite',
+    /**
+     * Emitted when {@link Suite} execution ends
+     */
+    EVENT_SUITE_END: 'suite end',
+    /**
+     * Emitted when {@link Test} execution begins
+     */
+    EVENT_TEST_BEGIN: 'test',
+    /**
+     * Emitted when {@link Test} execution ends
+     */
+    EVENT_TEST_END: 'test end',
+    /**
+     * Emitted when {@link Test} execution fails
+     */
+    EVENT_TEST_FAIL: 'fail',
+    /**
+     * Emitted when {@link Test} execution succeeds
+     */
+    EVENT_TEST_PASS: 'pass',
+    /**
+     * Emitted when {@link Test} becomes pending
+     */
+    EVENT_TEST_PENDING: 'pending',
+    /**
+     * Emitted when {@link Test} execution has failed, but will retry
+     */
+    EVENT_TEST_RETRY: 'retry'
+  }
+);
 
 module.exports = Runner;
 
 /**
- * Initialize a `Runner` for the given `suite`.
- *
- * Events:
- *
- *   - `start`  execution started
- *   - `end`  execution complete
- *   - `suite`  (suite) test suite execution started
- *   - `suite end`  (suite) all tests (and sub-suites) have finished
- *   - `test`  (test) test execution started
- *   - `test end`  (test) test completed
- *   - `hook`  (hook) hook execution started
- *   - `hook end`  (hook) hook complete
- *   - `pass`  (test) test passed
- *   - `fail`  (test, err) test failed
- *   - `pending`  (test) test pending
+ * Initialize a `Runner` at the Root {@link Suite}, which represents a hierarchy of {@link Suite|Suites} and {@link Test|Tests}.
  *
- * @api public
+ * @extends external:EventEmitter
+ * @public
+ * @class
  * @param {Suite} suite Root suite
  * @param {boolean} [delay] Whether or not to delay execution of root suite
  * until ready.
@@ -4493,10 +5588,10 @@ function Runner(suite, delay) {
   this.started = false;
   this.total = suite.total();
   this.failures = 0;
-  this.on('test end', function(test) {
+  this.on(constants.EVENT_TEST_END, function(test) {
     self.checkGlobals(test);
   });
-  this.on('hook end', function(hook) {
+  this.on(constants.EVENT_HOOK_END, function(hook) {
     self.checkGlobals(hook);
   });
   this._defaultGrep = /.*/;
@@ -4508,7 +5603,7 @@ function Runner(suite, delay) {
  * Wrapper for setImmediate, process.nextTick, or browser polyfill.
  *
  * @param {Function} fn
- * @api private
+ * @private
  */
 Runner.immediately = global.setImmediate || process.nextTick;
 
@@ -4521,10 +5616,8 @@ inherits(Runner, EventEmitter);
  * Run tests with full titles matching `re`. Updates runner.total
  * with number of tests matched.
  *
- * @param {RegExp} re
- * @param {Boolean} invert
- * @return {Runner} for chaining
- * @api public
+ * @public
+ * @memberof Runner
  * @param {RegExp} re
  * @param {boolean} invert
  * @return {Runner} Runner instance.
@@ -4541,9 +5634,8 @@ Runner.prototype.grep = function(re, invert) {
  * Returns the number of tests matching the grep search for the
  * given suite.
  *
- * @param {Suite} suite
- * @return {Number}
- * @api public
+ * @memberof Runner
+ * @public
  * @param {Suite} suite
  * @return {number}
  */
@@ -4568,14 +5660,14 @@ Runner.prototype.grepTotal = function(suite) {
  * Return a list of global properties.
  *
  * @return {Array}
- * @api private
+ * @private
  */
 Runner.prototype.globalProps = function() {
-  var props = keys(global);
+  var props = Object.keys(global);
 
   // non-enumerables
   for (var i = 0; i < globals.length; ++i) {
-    if (~indexOf(props, globals[i])) {
+    if (~props.indexOf(globals[i])) {
       continue;
     }
     props.push(globals[i]);
@@ -4587,9 +5679,8 @@ Runner.prototype.globalProps = function() {
 /**
  * Allow the given `arr` of globals.
  *
- * @param {Array} arr
- * @return {Runner} for chaining
- * @api public
+ * @public
+ * @memberof Runner
  * @param {Array} arr
  * @return {Runner} Runner instance.
  */
@@ -4605,7 +5696,7 @@ Runner.prototype.globals = function(arr) {
 /**
  * Check for global variable leaks.
  *
- * @api private
+ * @private
  */
 Runner.prototype.checkGlobals = function(test) {
   if (this.ignoreLeaks) {
@@ -4628,17 +5719,21 @@ Runner.prototype.checkGlobals = function(test) {
   leaks = filterLeaks(ok, globals);
   this._globals = this._globals.concat(leaks);
 
-  if (leaks.length > 1) {
-    this.fail(test, new Error('global leaks detected: ' + leaks.join(', ') + ''));
-  } else if (leaks.length) {
-    this.fail(test, new Error('global leak detected: ' + leaks[0]));
+  if (leaks.length) {
+    var format = ngettext(
+      leaks.length,
+      'global leak detected: %s',
+      'global leaks detected: %s'
+    );
+    var error = new Error(util.format(format, leaks.map(sQuote).join(', ')));
+    this.fail(test, error);
   }
 };
 
 /**
  * Fail the given `test`.
  *
- * @api private
+ * @private
  * @param {Test} test
  * @param {Error} err
  */
@@ -4648,24 +5743,28 @@ Runner.prototype.fail = function(test, err) {
   }
 
   ++this.failures;
-  test.state = 'failed';
+  test.state = STATE_FAILED;
 
-  if (!(err instanceof Error || err && typeof err.message === 'string')) {
-    err = new Error('the ' + type(err) + ' ' + stringify(err) + ' was thrown, throw an Error :)');
+  if (!isError(err)) {
+    err = thrown2Error(err);
   }
 
-  err.stack = (this.fullStackTrace || !err.stack)
-    ? err.stack
-    : stackFilter(err.stack);
+  try {
+    err.stack =
+      this.fullStackTrace || !err.stack ? err.stack : stackFilter(err.stack);
+  } catch (ignore) {
+    // some environments do not take kindly to monkeying with the stack
+  }
 
-  this.emit('fail', test, err);
+  this.emit(constants.EVENT_TEST_FAIL, test, err);
 };
 
 /**
  * Fail the given `hook` with `err`.
  *
  * Hook failures work in the following pattern:
- * - If bail, then exit
+ * - If bail, run corresponding `after each` and `after` hooks,
+ *   then exit
  * - Failed `before` hook skips all tests in a suite and subsuites,
  *   but jumps to corresponding `after` hook
  * - Failed `before each` hook skips remaining tests in a
@@ -4677,33 +5776,39 @@ Runner.prototype.fail = function(test, err) {
  *   suite and subsuites, but executes other `after each`
  *   hooks
  *
- * @api private
+ * @private
  * @param {Hook} hook
  * @param {Error} err
  */
 Runner.prototype.failHook = function(hook, err) {
+  hook.originalTitle = hook.originalTitle || hook.title;
   if (hook.ctx && hook.ctx.currentTest) {
-    hook.originalTitle = hook.originalTitle || hook.title;
-    hook.title = hook.originalTitle + ' for "' + hook.ctx.currentTest.title + '"';
+    hook.title =
+      hook.originalTitle + ' for ' + dQuote(hook.ctx.currentTest.title);
+  } else {
+    var parentTitle;
+    if (hook.parent.title) {
+      parentTitle = hook.parent.title;
+    } else {
+      parentTitle = hook.parent.root ? '{root}' : '';
+    }
+    hook.title = hook.originalTitle + ' in ' + dQuote(parentTitle);
   }
 
   this.fail(hook, err);
-  if (this.suite.bail()) {
-    this.emit('end');
-  }
 };
 
 /**
  * Run hook `name` callbacks and then invoke `fn()`.
  *
- * @api private
+ * @private
  * @param {string} name
  * @param {Function} fn
  */
 
 Runner.prototype.hook = function(name, fn) {
   var suite = this.suite;
-  var hooks = suite['_' + name];
+  var hooks = suite.getHooks(name);
   var self = this;
 
   function next(i) {
@@ -4713,9 +5818,17 @@ Runner.prototype.hook = function(name, fn) {
     }
     self.currentRunnable = hook;
 
-    hook.ctx.currentTest = self.test;
+    if (name === HOOK_TYPE_BEFORE_ALL) {
+      hook.ctx.currentTest = hook.parent.tests[0];
+    } else if (name === HOOK_TYPE_AFTER_ALL) {
+      hook.ctx.currentTest = hook.parent.tests[hook.parent.tests.length - 1];
+    } else {
+      hook.ctx.currentTest = self.test;
+    }
+
+    hook.allowUncaught = self.allowUncaught;
 
-    self.emit('hook', hook);
+    self.emit(constants.EVENT_HOOK_BEGIN, hook);
 
     if (!hook.listeners('error').length) {
       hook.on('error', function(err) {
@@ -4730,12 +5843,23 @@ Runner.prototype.hook = function(name, fn) {
       }
       if (err) {
         if (err instanceof Pending) {
-          if (name === 'beforeEach' || name === 'afterEach') {
-            self.test.pending = true;
+          if (name === HOOK_TYPE_AFTER_ALL) {
+            utils.deprecate(
+              'Skipping a test within an "after all" hook is DEPRECATED and will throw an exception in a future version of Mocha. ' +
+                'Use a return statement or other means to abort hook execution.'
+            );
+          }
+          if (name === HOOK_TYPE_BEFORE_EACH || name === HOOK_TYPE_AFTER_EACH) {
+            if (self.test) {
+              self.test.pending = true;
+            }
           } else {
-            utils.forEach(suite.tests, function(test) {
+            suite.tests.forEach(function(test) {
               test.pending = true;
             });
+            suite.suites.forEach(function(suite) {
+              suite.pending = true;
+            });
             // a pending hook won't be executed twice.
             hook.pending = true;
           }
@@ -4746,7 +5870,7 @@ Runner.prototype.hook = function(name, fn) {
           return fn(err);
         }
       }
-      self.emit('hook end', hook);
+      self.emit(constants.EVENT_HOOK_END, hook);
       delete hook.ctx.currentTest;
       next(++i);
     });
@@ -4761,7 +5885,7 @@ Runner.prototype.hook = function(name, fn) {
  * Run hook `name` for the given array of `suites`
  * in order, and callback `fn(err, errSuite)`.
  *
- * @api private
+ * @private
  * @param {string} name
  * @param {Array} suites
  * @param {Function} fn
@@ -4797,7 +5921,7 @@ Runner.prototype.hooks = function(name, suites, fn) {
  *
  * @param {String} name
  * @param {Function} fn
- * @api private
+ * @private
  */
 Runner.prototype.hookUp = function(name, fn) {
   var suites = [this.suite].concat(this.parents()).reverse();
@@ -4809,7 +5933,7 @@ Runner.prototype.hookUp = function(name, fn) {
  *
  * @param {String} name
  * @param {Function} fn
- * @api private
+ * @private
  */
 Runner.prototype.hookDown = function(name, fn) {
   var suites = [this.suite].concat(this.parents());
@@ -4821,7 +5945,7 @@ Runner.prototype.hookDown = function(name, fn) {
  * closest to furthest.
  *
  * @return {Array}
- * @api private
+ * @private
  */
 Runner.prototype.parents = function() {
   var suite = this.suite;
@@ -4837,7 +5961,7 @@ Runner.prototype.parents = function() {
  * Run the current test and callback `fn(err)`.
  *
  * @param {Function} fn
- * @api private
+ * @private
  */
 Runner.prototype.runTest = function(fn) {
   var self = this;
@@ -4846,18 +5970,23 @@ Runner.prototype.runTest = function(fn) {
   if (!test) {
     return;
   }
+
+  var suite = this.parents().reverse()[0] || this.suite;
+  if (this.forbidOnly && suite.hasOnly()) {
+    fn(new Error('`.only` forbidden'));
+    return;
+  }
   if (this.asyncOnly) {
     test.asyncOnly = true;
   }
-
+  test.on('error', function(err) {
+    self.fail(test, err);
+  });
   if (this.allowUncaught) {
     test.allowUncaught = true;
     return test.run(fn);
   }
   try {
-    test.on('error', function(err) {
-      self.fail(test, err);
-    });
     test.run(fn);
   } catch (err) {
     fn(err);
@@ -4867,7 +5996,7 @@ Runner.prototype.runTest = function(fn) {
 /**
  * Run tests in the given `suite` and invoke the callback `fn()` when complete.
  *
- * @api private
+ * @private
  * @param {Suite} suite
  * @param {Function} fn
  */
@@ -4886,7 +6015,7 @@ Runner.prototype.runTests = function(suite, fn) {
 
     if (self.suite) {
       // call hookUp afterEach
-      self.hookUp('afterEach', function(err2, errSuite2) {
+      self.hookUp(HOOK_TYPE_AFTER_EACH, function(err2, errSuite2) {
         self.suite = orig;
         // some hooks may fail even now
         if (err2) {
@@ -4905,7 +6034,7 @@ Runner.prototype.runTests = function(suite, fn) {
   function next(err, errSuite) {
     // if we bail after first err
     if (self.failures && suite._bail) {
-      return fn();
+      tests = [];
     }
 
     if (self._abort) {
@@ -4947,17 +6076,29 @@ Runner.prototype.runTests = function(suite, fn) {
     }
 
     if (test.isPending()) {
-      self.emit('pending', test);
-      self.emit('test end', test);
+      if (self.forbidPending) {
+        test.isPending = alwaysFalse;
+        self.fail(test, new Error('Pending test forbidden'));
+        delete test.isPending;
+      } else {
+        self.emit(constants.EVENT_TEST_PENDING, test);
+      }
+      self.emit(constants.EVENT_TEST_END, test);
       return next();
     }
 
     // execute test and hook(s)
-    self.emit('test', self.test = test);
-    self.hookDown('beforeEach', function(err, errSuite) {
+    self.emit(constants.EVENT_TEST_BEGIN, (self.test = test));
+    self.hookDown(HOOK_TYPE_BEFORE_EACH, function(err, errSuite) {
       if (test.isPending()) {
-        self.emit('pending', test);
-        self.emit('test end', test);
+        if (self.forbidPending) {
+          test.isPending = alwaysFalse;
+          self.fail(test, new Error('Pending test forbidden'));
+          delete test.isPending;
+        } else {
+          self.emit(constants.EVENT_TEST_PENDING, test);
+        }
+        self.emit(constants.EVENT_TEST_END, test);
         return next();
       }
       if (err) {
@@ -4968,33 +6109,37 @@ Runner.prototype.runTests = function(suite, fn) {
         test = self.test;
         if (err) {
           var retry = test.currentRetry();
-          if (err instanceof Pending) {
+          if (err instanceof Pending && self.forbidPending) {
+            self.fail(test, new Error('Pending test forbidden'));
+          } else if (err instanceof Pending) {
             test.pending = true;
-            self.emit('pending', test);
+            self.emit(constants.EVENT_TEST_PENDING, test);
           } else if (retry < test.retries()) {
             var clonedTest = test.clone();
             clonedTest.currentRetry(retry + 1);
             tests.unshift(clonedTest);
 
+            self.emit(constants.EVENT_TEST_RETRY, test, err);
+
             // Early return + hook trigger so that it doesn't
             // increment the count wrong
-            return self.hookUp('afterEach', next);
+            return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
           } else {
             self.fail(test, err);
           }
-          self.emit('test end', test);
+          self.emit(constants.EVENT_TEST_END, test);
 
           if (err instanceof Pending) {
             return next();
           }
 
-          return self.hookUp('afterEach', next);
+          return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
         }
 
-        test.state = 'passed';
-        self.emit('pass', test);
-        self.emit('test end', test);
-        self.hookUp('afterEach', next);
+        test.state = STATE_PASSED;
+        self.emit(constants.EVENT_TEST_PASS, test);
+        self.emit(constants.EVENT_TEST_END, test);
+        self.hookUp(HOOK_TYPE_AFTER_EACH, next);
       });
     });
   }
@@ -5004,10 +6149,14 @@ Runner.prototype.runTests = function(suite, fn) {
   next();
 };
 
+function alwaysFalse() {
+  return false;
+}
+
 /**
  * Run the given `suite` and invoke the callback `fn()` when complete.
  *
- * @api private
+ * @private
  * @param {Suite} suite
  * @param {Function} fn
  */
@@ -5023,7 +6172,7 @@ Runner.prototype.runSuite = function(suite, fn) {
     return fn();
   }
 
-  this.emit('suite', this.suite = suite);
+  this.emit(constants.EVENT_SUITE_BEGIN, (this.suite = suite));
 
   function next(errSuite) {
     if (errSuite) {
@@ -5073,8 +6222,8 @@ Runner.prototype.runSuite = function(suite, fn) {
       // remove reference to test
       delete self.test;
 
-      self.hook('afterAll', function() {
-        self.emit('suite end', suite);
+      self.hook(HOOK_TYPE_AFTER_ALL, function() {
+        self.emit(constants.EVENT_SUITE_END, suite);
         fn(errSuite);
       });
     }
@@ -5082,7 +6231,7 @@ Runner.prototype.runSuite = function(suite, fn) {
 
   this.nextSuite = next;
 
-  this.hook('beforeAll', function(err) {
+  this.hook(HOOK_TYPE_BEFORE_ALL, function(err) {
     if (err) {
       return done();
     }
@@ -5094,16 +6243,24 @@ Runner.prototype.runSuite = function(suite, fn) {
  * Handle uncaught exceptions.
  *
  * @param {Error} err
- * @api private
+ * @private
  */
 Runner.prototype.uncaught = function(err) {
+  if (err instanceof Pending) {
+    return;
+  }
   if (err) {
-    debug('uncaught exception %s', err !== function() {
-      return this;
-    }.call(err) ? err : (err.message || err));
+    debug('uncaught exception %O', err);
   } else {
-    debug('uncaught undefined exception');
-    err = undefinedError();
+    debug('uncaught undefined/falsy exception');
+    err = createInvalidExceptionError(
+      'Caught falsy/undefined exception which would otherwise be uncaught. No stack trace found; try a debugger',
+      err
+    );
+  }
+
+  if (!isError(err)) {
+    err = thrown2Error(err);
   }
   err.uncaught = true;
 
@@ -5117,9 +6274,9 @@ Runner.prototype.uncaught = function(err) {
       this.fail(runnable, err);
     } else {
       // Can't recover from this failure
-      this.emit('start');
+      this.emit(constants.EVENT_RUN_BEGIN);
       this.fail(runnable, err);
-      this.emit('end');
+      this.emit(constants.EVENT_RUN_END);
     }
 
     return;
@@ -5127,22 +6284,29 @@ Runner.prototype.uncaught = function(err) {
 
   runnable.clearTimeout();
 
-  // Ignore errors if complete or pending
-  if (runnable.state || runnable.isPending()) {
+  // Ignore errors if already failed or pending
+  // See #3226
+  if (runnable.isFailed() || runnable.isPending()) {
     return;
   }
+  // we cannot recover gracefully if a Runnable has already passed
+  // then fails asynchronously
+  var alreadyPassed = runnable.isPassed();
+  // this will change the state to "failed" regardless of the current value
   this.fail(runnable, err);
+  if (!alreadyPassed) {
+    // recover from test
+    if (runnable.type === constants.EVENT_TEST_BEGIN) {
+      this.emit(constants.EVENT_TEST_END, runnable);
+      this.hookUp(HOOK_TYPE_AFTER_EACH, this.next);
+      return;
+    }
+    debug(runnable);
 
-  // recover from test
-  if (runnable.type === 'test') {
-    this.emit('test end', runnable);
-    this.hookUp('afterEach', this.next);
-    return;
-  }
-
- // recover from hooks
-  if (runnable.type === 'hook') {
+    // recover from hooks
     var errSuite = this.suite;
+
+    // XXX how about a less awful way to determine this?
     // if hook failure is in afterEach block
     if (runnable.fullTitle().indexOf('after each') > -1) {
       return this.hookErr(err, errSuite, true);
@@ -5156,54 +6320,15 @@ Runner.prototype.uncaught = function(err) {
   }
 
   // bail
-  this.emit('end');
+  this.emit(constants.EVENT_RUN_END);
 };
 
-/**
- * Cleans up the references to all the deferred functions
- * (before/after/beforeEach/afterEach) and tests of a Suite.
- * These must be deleted otherwise a memory leak can happen,
- * as those functions may reference variables from closures,
- * thus those variables can never be garbage collected as long
- * as the deferred functions exist.
- *
- * @param {Suite} suite
- */
-function cleanSuiteReferences(suite) {
-  function cleanArrReferences(arr) {
-    for (var i = 0; i < arr.length; i++) {
-      delete arr[i].fn;
-    }
-  }
-
-  if (isArray(suite._beforeAll)) {
-    cleanArrReferences(suite._beforeAll);
-  }
-
-  if (isArray(suite._beforeEach)) {
-    cleanArrReferences(suite._beforeEach);
-  }
-
-  if (isArray(suite._afterAll)) {
-    cleanArrReferences(suite._afterAll);
-  }
-
-  if (isArray(suite._afterEach)) {
-    cleanArrReferences(suite._afterEach);
-  }
-
-  for (var i = 0; i < suite.tests.length; i++) {
-    delete suite.tests[i].fn;
-  }
-}
-
 /**
  * Run the root suite and invoke `fn(failures)`
  * on completion.
  *
- * @param {Function} fn
- * @return {Runner} for chaining
- * @api public
+ * @public
+ * @memberof Runner
  * @param {Function} fn
  * @return {Runner} Runner instance.
  */
@@ -5211,11 +6336,6 @@ Runner.prototype.run = function(fn) {
   var self = this;
   var rootSuite = this.suite;
 
-  // If there is an `only` filter
-  if (this.hasOnly) {
-    filterOnly(rootSuite);
-  }
-
   fn = fn || function() {};
 
   function uncaught(err) {
@@ -5223,22 +6343,32 @@ Runner.prototype.run = function(fn) {
   }
 
   function start() {
+    // If there is an `only` filter
+    if (rootSuite.hasOnly()) {
+      rootSuite.filterOnly();
+    }
     self.started = true;
-    self.emit('start');
+    if (self._delay) {
+      self.emit(constants.EVENT_DELAY_END);
+    }
+    self.emit(constants.EVENT_RUN_BEGIN);
+
     self.runSuite(rootSuite, function() {
       debug('finished running');
-      self.emit('end');
+      self.emit(constants.EVENT_RUN_END);
     });
   }
 
-  debug('start');
+  debug(constants.EVENT_RUN_BEGIN);
 
   // references cleanup to avoid memory leaks
-  this.on('suite end', cleanSuiteReferences);
+  this.on(constants.EVENT_SUITE_END, function(suite) {
+    suite.cleanReferences();
+  });
 
   // callback
-  this.on('end', function() {
-    debug('end');
+  this.on(constants.EVENT_RUN_END, function() {
+    debug(constants.EVENT_RUN_END);
     process.removeListener('uncaughtException', uncaught);
     fn(self.failures);
   });
@@ -5249,8 +6379,8 @@ Runner.prototype.run = function(fn) {
   if (this._delay) {
     // for reporters, I guess.
     // might be nice to debounce some dots while we wait.
-    this.emit('waiting', rootSuite);
-    rootSuite.once('run', start);
+    this.emit(constants.EVENT_DELAY_BEGIN, rootSuite);
+    rootSuite.once(EVENT_ROOT_SUITE_RUN, start);
   } else {
     start();
   }
@@ -5261,7 +6391,8 @@ Runner.prototype.run = function(fn) {
 /**
  * Cleanly abort execution.
  *
- * @api public
+ * @memberof Runner
+ * @public
  * @return {Runner} Runner instance.
  */
 Runner.prototype.abort = function() {
@@ -5271,58 +6402,16 @@ Runner.prototype.abort = function() {
   return this;
 };
 
-/**
- * Filter suites based on `isOnly` logic.
- *
- * @param {Array} suite
- * @returns {Boolean}
- * @api private
- */
-function filterOnly(suite) {
-  if (suite._onlyTests.length) {
-    // If the suite contains `only` tests, run those and ignore any nested suites.
-    suite.tests = suite._onlyTests;
-    suite.suites = [];
-  } else {
-    // Otherwise, do not run any of the tests in this suite.
-    suite.tests = [];
-    utils.forEach(suite._onlySuites, function(onlySuite) {
-      // If there are other `only` tests/suites nested in the current `only` suite, then filter that `only` suite.
-      // Otherwise, all of the tests on this `only` suite should be run, so don't filter it.
-      if (hasOnly(onlySuite)) {
-        filterOnly(onlySuite);
-      }
-    });
-    // Run the `only` suites, as well as any other suites that have `only` tests/suites as descendants.
-    suite.suites = filter(suite.suites, function(childSuite) {
-      return indexOf(suite._onlySuites, childSuite) !== -1 || filterOnly(childSuite);
-    });
-  }
-  // Keep the suite only if there is something to run
-  return suite.tests.length || suite.suites.length;
-}
-
-/**
- * Determines whether a suite has an `only` test or suite as a descendant.
- *
- * @param {Array} suite
- * @returns {Boolean}
- * @api private
- */
-function hasOnly(suite) {
-  return suite._onlyTests.length || suite._onlySuites.length || some(suite.suites, hasOnly);
-}
-
 /**
  * Filter leaks with the given globals flagged as `ok`.
  *
- * @api private
+ * @private
  * @param {Array} ok
  * @param {Array} globals
  * @return {Array}
  */
 function filterLeaks(ok, globals) {
-  return filter(globals, function(key) {
+  return globals.filter(function(key) {
     // Firefox and Chrome exposes iframes as index inside the window object
     if (/^\d+/.test(key)) {
       return false;
@@ -5331,13 +6420,13 @@ function filterLeaks(ok, globals) {
     // in firefox
     // if runner runs in an iframe, this iframe's window.getInterface method
     // not init at first it is assigned in some seconds
-    if (global.navigator && (/^getInterface/).test(key)) {
+    if (global.navigator && /^getInterface/.test(key)) {
       return false;
     }
 
     // an iframe could be approached by window[iframeIndex]
     // in ie6,7,8 and opera, iframeIndex is enumerable, this could cause leak
-    if (global.navigator && (/^\d+/).test(key)) {
+    if (global.navigator && /^\d+/.test(key)) {
       return false;
     }
 
@@ -5346,7 +6435,7 @@ function filterLeaks(ok, globals) {
       return false;
     }
 
-    var matched = filter(ok, function(ok) {
+    var matched = ok.filter(function(ok) {
       if (~ok.indexOf('*')) {
         return key.indexOf(ok.split('*')[0]) === 0;
       }
@@ -5356,22 +6445,49 @@ function filterLeaks(ok, globals) {
   });
 }
 
+/**
+ * Check if argument is an instance of Error object or a duck-typed equivalent.
+ *
+ * @private
+ * @param {Object} err - object to check
+ * @param {string} err.message - error message
+ * @returns {boolean}
+ */
+function isError(err) {
+  return err instanceof Error || (err && typeof err.message === 'string');
+}
+
+/**
+ *
+ * Converts thrown non-extensible type into proper Error.
+ *
+ * @private
+ * @param {*} thrown - Non-extensible type thrown by code
+ * @return {Error}
+ */
+function thrown2Error(err) {
+  return new Error(
+    'the ' + type(err) + ' ' + stringify(err) + ' was thrown, throw an Error :)'
+  );
+}
+
 /**
  * Array of globals dependent on the environment.
  *
  * @return {Array}
- * @api private
+ * @deprecated
+ * @todo remove; long since unsupported
+ * @private
  */
 function extraGlobals() {
   if (typeof process === 'object' && typeof process.version === 'string') {
     var parts = process.version.split('.');
-    var nodeVersion = utils.reduce(parts, function(a, v) {
-      return a << 8 | v;
+    var nodeVersion = parts.reduce(function(a, v) {
+      return (a << 8) | v;
     });
 
     // 'errno' was renamed to process._errno in v0.9.11.
-
-    if (nodeVersion < 0x00090B) {
+    if (nodeVersion < 0x00090b) {
       return ['errno'];
     }
   }
@@ -5379,53 +6495,159 @@ function extraGlobals() {
   return [];
 }
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./pending":16,"./runnable":33,"./utils":38,"_process":67,"debug":2,"events":3}],35:[function(require,module,exports){
+Runner.constants = constants;
+
 /**
- * Module dependencies.
+ * Node.js' `EventEmitter`
+ * @external EventEmitter
+ * @see {@link https://nodejs.org/api/events.html#events_class_eventemitter}
  */
 
-var EventEmitter = require('events').EventEmitter;
-var Hook = require('./hook');
-var utils = require('./utils');
-var inherits = utils.inherits;
-var debug = require('debug')('mocha:suite');
-var milliseconds = require('./ms');
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./errors":6,"./pending":16,"./runnable":33,"./suite":36,"./utils":38,"_process":69,"debug":45,"events":50,"util":89}],35:[function(require,module,exports){
+(function (global){
+'use strict';
 
 /**
- * Expose `Suite`.
+ * Provides a factory function for a {@link StatsCollector} object.
+ * @module
  */
 
-exports = module.exports = Suite;
+var constants = require('./runner').constants;
+var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+var EVENT_RUN_END = constants.EVENT_RUN_END;
+var EVENT_TEST_END = constants.EVENT_TEST_END;
 
 /**
- * Create a new `Suite` with the given `title` and parent `Suite`. When a suite
- * with the same title is already present, that suite is returned to provide
- * nicer reporter and more flexible meta-testing.
+ * Test statistics collector.
  *
- * @api public
- * @param {Suite} parent
- * @param {string} title
- * @return {Suite}
+ * @public
+ * @typedef {Object} StatsCollector
+ * @property {number} suites - integer count of suites run.
+ * @property {number} tests - integer count of tests run.
+ * @property {number} passes - integer count of passing tests.
+ * @property {number} pending - integer count of pending tests.
+ * @property {number} failures - integer count of failed tests.
+ * @property {Date} start - time when testing began.
+ * @property {Date} end - time when testing concluded.
+ * @property {number} duration - number of msecs that testing took.
  */
-exports.create = function(parent, title) {
-  var suite = new Suite(title, parent.ctx);
-  suite.parent = parent;
-  title = suite.fullTitle();
-  parent.addSuite(suite);
-  return suite;
-};
+
+var Date = global.Date;
 
 /**
- * Initialize a new `Suite` with the given `title` and `ctx`.
+ * Provides stats such as test duration, number of tests passed / failed etc., by listening for events emitted by `runner`.
  *
- * @api private
- * @param {string} title
- * @param {Context} parentContext
- */
-function Suite(title, parentContext) {
+ * @private
+ * @param {Runner} runner - Runner instance
+ * @throws {TypeError} If falsy `runner`
+ */
+function createStatsCollector(runner) {
+  /**
+   * @type StatsCollector
+   */
+  var stats = {
+    suites: 0,
+    tests: 0,
+    passes: 0,
+    pending: 0,
+    failures: 0
+  };
+
+  if (!runner) {
+    throw new TypeError('Missing runner argument');
+  }
+
+  runner.stats = stats;
+
+  runner.once(EVENT_RUN_BEGIN, function() {
+    stats.start = new Date();
+  });
+  runner.on(EVENT_SUITE_BEGIN, function(suite) {
+    suite.root || stats.suites++;
+  });
+  runner.on(EVENT_TEST_PASS, function() {
+    stats.passes++;
+  });
+  runner.on(EVENT_TEST_FAIL, function() {
+    stats.failures++;
+  });
+  runner.on(EVENT_TEST_PENDING, function() {
+    stats.pending++;
+  });
+  runner.on(EVENT_TEST_END, function() {
+    stats.tests++;
+  });
+  runner.once(EVENT_RUN_END, function() {
+    stats.end = new Date();
+    stats.duration = stats.end - stats.start;
+  });
+}
+
+module.exports = createStatsCollector;
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./runner":34}],36:[function(require,module,exports){
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+var EventEmitter = require('events').EventEmitter;
+var Hook = require('./hook');
+var utils = require('./utils');
+var inherits = utils.inherits;
+var debug = require('debug')('mocha:suite');
+var milliseconds = require('ms');
+var errors = require('./errors');
+var createInvalidArgumentTypeError = errors.createInvalidArgumentTypeError;
+
+/**
+ * Expose `Suite`.
+ */
+
+exports = module.exports = Suite;
+
+/**
+ * Create a new `Suite` with the given `title` and parent `Suite`.
+ *
+ * @public
+ * @param {Suite} parent - Parent suite (required!)
+ * @param {string} title - Title
+ * @return {Suite}
+ */
+Suite.create = function(parent, title) {
+  var suite = new Suite(title, parent.ctx);
+  suite.parent = parent;
+  title = suite.fullTitle();
+  parent.addSuite(suite);
+  return suite;
+};
+
+/**
+ * Constructs a new `Suite` instance with the given `title`, `ctx`, and `isRoot`.
+ *
+ * @public
+ * @class
+ * @extends EventEmitter
+ * @see {@link https://nodejs.org/api/events.html#events_class_eventemitter|EventEmitter}
+ * @param {string} title - Suite title.
+ * @param {Context} parentContext - Parent context instance.
+ * @param {boolean} [isRoot=false] - Whether this is the root suite.
+ */
+function Suite(title, parentContext, isRoot) {
   if (!utils.isString(title)) {
-    throw new Error('Suite `title` should be a "string" but "' + typeof title + '" was given instead.');
+    throw createInvalidArgumentTypeError(
+      'Suite argument "title" must be a string. Received type "' +
+        typeof title +
+        '"',
+      'title',
+      'string'
+    );
   }
   this.title = title;
   function Context() {}
@@ -5438,7 +6660,7 @@ function Suite(title, parentContext) {
   this._beforeAll = [];
   this._afterEach = [];
   this._afterAll = [];
-  this.root = !title;
+  this.root = isRoot === true;
   this._timeout = 2000;
   this._enableTimeouts = true;
   this._slow = 75;
@@ -5447,6 +6669,16 @@ function Suite(title, parentContext) {
   this._onlyTests = [];
   this._onlySuites = [];
   this.delayed = false;
+
+  this.on('newListener', function(event) {
+    if (deprecatedEvents[event]) {
+      utils.deprecate(
+        'Event "' +
+          event +
+          '" is deprecated.  Please let the Mocha team know about your use case: https://git.io/v6Lwm'
+      );
+    }
+  });
 }
 
 /**
@@ -5457,13 +6689,14 @@ inherits(Suite, EventEmitter);
 /**
  * Return a clone of this `Suite`.
  *
- * @api private
+ * @private
  * @return {Suite}
  */
 Suite.prototype.clone = function() {
   var suite = new Suite(this.title);
   debug('clone');
   suite.ctx = this.ctx;
+  suite.root = this.root;
   suite.timeout(this.timeout());
   suite.retries(this.retries());
   suite.enableTimeouts(this.enableTimeouts());
@@ -5473,9 +6706,10 @@ Suite.prototype.clone = function() {
 };
 
 /**
- * Set timeout `ms` or short-hand such as "2s".
+ * Set or get timeout `ms` or short-hand such as "2s".
  *
- * @api private
+ * @private
+ * @todo Do not attempt to set value if `ms` is undefined
  * @param {number|string} ms
  * @return {Suite|number} for chaining
  */
@@ -5495,9 +6729,9 @@ Suite.prototype.timeout = function(ms) {
 };
 
 /**
- * Set number of times to retry a failed test.
+ * Set or get number of times to retry a failed test.
  *
- * @api private
+ * @private
  * @param {number|string} n
  * @return {Suite|number} for chaining
  */
@@ -5511,12 +6745,12 @@ Suite.prototype.retries = function(n) {
 };
 
 /**
-  * Set timeout to `enabled`.
-  *
-  * @api private
-  * @param {boolean} enabled
-  * @return {Suite|boolean} self or enabled
-  */
+ * Set or get timeout to `enabled`.
+ *
+ * @private
+ * @param {boolean} enabled
+ * @return {Suite|boolean} self or enabled
+ */
 Suite.prototype.enableTimeouts = function(enabled) {
   if (!arguments.length) {
     return this._enableTimeouts;
@@ -5527,9 +6761,9 @@ Suite.prototype.enableTimeouts = function(enabled) {
 };
 
 /**
- * Set slow `ms` or short-hand such as "2s".
+ * Set or get slow `ms` or short-hand such as "2s".
  *
- * @api private
+ * @private
  * @param {number|string} ms
  * @return {Suite|number} for chaining
  */
@@ -5546,9 +6780,9 @@ Suite.prototype.slow = function(ms) {
 };
 
 /**
- * Sets whether to bail after first error.
+ * Set or get whether to bail after first error.
  *
- * @api private
+ * @private
  * @param {boolean} bail
  * @return {Suite|number} for chaining
  */
@@ -5564,16 +6798,35 @@ Suite.prototype.bail = function(bail) {
 /**
  * Check if this suite or its parent suite is marked as pending.
  *
- * @api private
+ * @private
  */
 Suite.prototype.isPending = function() {
   return this.pending || (this.parent && this.parent.isPending());
 };
 
+/**
+ * Generic hook-creator.
+ * @private
+ * @param {string} title - Title of hook
+ * @param {Function} fn - Hook callback
+ * @returns {Hook} A new hook
+ */
+Suite.prototype._createHook = function(title, fn) {
+  var hook = new Hook(title, fn);
+  hook.parent = this;
+  hook.timeout(this.timeout());
+  hook.retries(this.retries());
+  hook.enableTimeouts(this.enableTimeouts());
+  hook.slow(this.slow());
+  hook.ctx = this.ctx;
+  hook.file = this.file;
+  return hook;
+};
+
 /**
  * Run `fn(test[, done])` before running tests.
  *
- * @api private
+ * @private
  * @param {string} title
  * @param {Function} fn
  * @return {Suite} for chaining
@@ -5588,22 +6841,16 @@ Suite.prototype.beforeAll = function(title, fn) {
   }
   title = '"before all" hook' + (title ? ': ' + title : '');
 
-  var hook = new Hook(title, fn);
-  hook.parent = this;
-  hook.timeout(this.timeout());
-  hook.retries(this.retries());
-  hook.enableTimeouts(this.enableTimeouts());
-  hook.slow(this.slow());
-  hook.ctx = this.ctx;
+  var hook = this._createHook(title, fn);
   this._beforeAll.push(hook);
-  this.emit('beforeAll', hook);
+  this.emit(constants.EVENT_SUITE_ADD_HOOK_BEFORE_ALL, hook);
   return this;
 };
 
 /**
  * Run `fn(test[, done])` after running tests.
  *
- * @api private
+ * @private
  * @param {string} title
  * @param {Function} fn
  * @return {Suite} for chaining
@@ -5618,22 +6865,16 @@ Suite.prototype.afterAll = function(title, fn) {
   }
   title = '"after all" hook' + (title ? ': ' + title : '');
 
-  var hook = new Hook(title, fn);
-  hook.parent = this;
-  hook.timeout(this.timeout());
-  hook.retries(this.retries());
-  hook.enableTimeouts(this.enableTimeouts());
-  hook.slow(this.slow());
-  hook.ctx = this.ctx;
+  var hook = this._createHook(title, fn);
   this._afterAll.push(hook);
-  this.emit('afterAll', hook);
+  this.emit(constants.EVENT_SUITE_ADD_HOOK_AFTER_ALL, hook);
   return this;
 };
 
 /**
  * Run `fn(test[, done])` before each test case.
  *
- * @api private
+ * @private
  * @param {string} title
  * @param {Function} fn
  * @return {Suite} for chaining
@@ -5648,22 +6889,16 @@ Suite.prototype.beforeEach = function(title, fn) {
   }
   title = '"before each" hook' + (title ? ': ' + title : '');
 
-  var hook = new Hook(title, fn);
-  hook.parent = this;
-  hook.timeout(this.timeout());
-  hook.retries(this.retries());
-  hook.enableTimeouts(this.enableTimeouts());
-  hook.slow(this.slow());
-  hook.ctx = this.ctx;
+  var hook = this._createHook(title, fn);
   this._beforeEach.push(hook);
-  this.emit('beforeEach', hook);
+  this.emit(constants.EVENT_SUITE_ADD_HOOK_BEFORE_EACH, hook);
   return this;
 };
 
 /**
  * Run `fn(test[, done])` after each test case.
  *
- * @api private
+ * @private
  * @param {string} title
  * @param {Function} fn
  * @return {Suite} for chaining
@@ -5678,41 +6913,36 @@ Suite.prototype.afterEach = function(title, fn) {
   }
   title = '"after each" hook' + (title ? ': ' + title : '');
 
-  var hook = new Hook(title, fn);
-  hook.parent = this;
-  hook.timeout(this.timeout());
-  hook.retries(this.retries());
-  hook.enableTimeouts(this.enableTimeouts());
-  hook.slow(this.slow());
-  hook.ctx = this.ctx;
+  var hook = this._createHook(title, fn);
   this._afterEach.push(hook);
-  this.emit('afterEach', hook);
+  this.emit(constants.EVENT_SUITE_ADD_HOOK_AFTER_EACH, hook);
   return this;
 };
 
 /**
  * Add a test `suite`.
  *
- * @api private
+ * @private
  * @param {Suite} suite
  * @return {Suite} for chaining
  */
 Suite.prototype.addSuite = function(suite) {
   suite.parent = this;
+  suite.root = false;
   suite.timeout(this.timeout());
   suite.retries(this.retries());
   suite.enableTimeouts(this.enableTimeouts());
   suite.slow(this.slow());
   suite.bail(this.bail());
   this.suites.push(suite);
-  this.emit('suite', suite);
+  this.emit(constants.EVENT_SUITE_ADD_SUITE, suite);
   return this;
 };
 
 /**
  * Add a `test` to this suite.
  *
- * @api private
+ * @private
  * @param {Test} test
  * @return {Suite} for chaining
  */
@@ -5724,7 +6954,7 @@ Suite.prototype.addTest = function(test) {
   test.slow(this.slow());
   test.ctx = this.ctx;
   this.tests.push(test);
-  this.emit('test', test);
+  this.emit(constants.EVENT_SUITE_ADD_TEST, test);
   return this;
 };
 
@@ -5732,42 +6962,59 @@ Suite.prototype.addTest = function(test) {
  * Return the full title generated by recursively concatenating the parent's
  * full title.
  *
- * @api public
+ * @memberof Suite
+ * @public
  * @return {string}
  */
 Suite.prototype.fullTitle = function() {
+  return this.titlePath().join(' ');
+};
+
+/**
+ * Return the title path generated by recursively concatenating the parent's
+ * title path.
+ *
+ * @memberof Suite
+ * @public
+ * @return {string}
+ */
+Suite.prototype.titlePath = function() {
+  var result = [];
   if (this.parent) {
-    var full = this.parent.fullTitle();
-    if (full) {
-      return full + ' ' + this.title;
-    }
+    result = result.concat(this.parent.titlePath());
+  }
+  if (!this.root) {
+    result.push(this.title);
   }
-  return this.title;
+  return result;
 };
 
 /**
  * Return the total number of tests.
  *
- * @api public
+ * @memberof Suite
+ * @public
  * @return {number}
  */
 Suite.prototype.total = function() {
-  return utils.reduce(this.suites, function(sum, suite) {
-    return sum + suite.total();
-  }, 0) + this.tests.length;
+  return (
+    this.suites.reduce(function(sum, suite) {
+      return sum + suite.total();
+    }, 0) + this.tests.length
+  );
 };
 
 /**
  * Iterates through each suite recursively to find all tests. Applies a
  * function in the format `fn(test)`.
  *
- * @api private
+ * @private
  * @param {Function} fn
  * @return {Suite}
  */
 Suite.prototype.eachTest = function(fn) {
-  utils.forEach(this.tests, fn);
-  utils.forEach(this.suites, function(suite) {
+  this.tests.forEach(fn);
+  this.suites.forEach(function(suite) {
     suite.eachTest(fn);
   });
   return this;
@@ -5775,297 +7022,343 @@ Suite.prototype.eachTest = function(fn) {
 
 /**
  * This will run the root suite if we happen to be running in delayed mode.
+ * @private
  */
 Suite.prototype.run = function run() {
   if (this.root) {
-    this.emit('run');
+    this.emit(constants.EVENT_ROOT_SUITE_RUN);
   }
 };
 
-},{"./hook":7,"./ms":15,"./utils":38,"debug":2,"events":3}],36:[function(require,module,exports){
-/**
- * Module dependencies.
- */
-
-var Runnable = require('./runnable');
-var create = require('lodash.create');
-var isString = require('./utils').isString;
-
 /**
- * Expose `Test`.
+ * Determines whether a suite has an `only` test or suite as a descendant.
+ *
+ * @private
+ * @returns {Boolean}
  */
-
-module.exports = Test;
+Suite.prototype.hasOnly = function hasOnly() {
+  return (
+    this._onlyTests.length > 0 ||
+    this._onlySuites.length > 0 ||
+    this.suites.some(function(suite) {
+      return suite.hasOnly();
+    })
+  );
+};
 
 /**
- * Initialize a new `Test` with the given `title` and callback `fn`.
+ * Filter suites based on `isOnly` logic.
  *
- * @api private
- * @param {String} title
- * @param {Function} fn
+ * @private
+ * @returns {Boolean}
  */
-function Test(title, fn) {
-  if (!isString(title)) {
-    throw new Error('Test `title` should be a "string" but "' + typeof title + '" was given instead.');
+Suite.prototype.filterOnly = function filterOnly() {
+  if (this._onlyTests.length) {
+    // If the suite contains `only` tests, run those and ignore any nested suites.
+    this.tests = this._onlyTests;
+    this.suites = [];
+  } else {
+    // Otherwise, do not run any of the tests in this suite.
+    this.tests = [];
+    this._onlySuites.forEach(function(onlySuite) {
+      // If there are other `only` tests/suites nested in the current `only` suite, then filter that `only` suite.
+      // Otherwise, all of the tests on this `only` suite should be run, so don't filter it.
+      if (onlySuite.hasOnly()) {
+        onlySuite.filterOnly();
+      }
+    });
+    // Run the `only` suites, as well as any other suites that have `only` tests/suites as descendants.
+    var onlySuites = this._onlySuites;
+    this.suites = this.suites.filter(function(childSuite) {
+      return onlySuites.indexOf(childSuite) !== -1 || childSuite.filterOnly();
+    });
   }
-  Runnable.call(this, title, fn);
-  this.pending = !fn;
-  this.type = 'test';
-}
-
-/**
- * Inherit from `Runnable.prototype`.
- */
-Test.prototype = create(Runnable.prototype, {
-  constructor: Test
-});
-
-Test.prototype.clone = function() {
-  var test = new Test(this.title, this.fn);
-  test.timeout(this.timeout());
-  test.slow(this.slow());
-  test.enableTimeouts(this.enableTimeouts());
-  test.retries(this.retries());
-  test.currentRetry(this.currentRetry());
-  test.globals(this.globals());
-  test.parent = this.parent;
-  test.file = this.file;
-  test.ctx = this.ctx;
-  return test;
+  // Keep the suite only if there is something to run
+  return this.tests.length > 0 || this.suites.length > 0;
 };
 
-},{"./runnable":33,"./utils":38,"lodash.create":60}],37:[function(require,module,exports){
-'use strict';
-
 /**
- * Pad a `number` with a ten's place zero.
+ * Adds a suite to the list of subsuites marked `only`.
  *
- * @param {number} number
- * @return {string}
+ * @private
+ * @param {Suite} suite
  */
-function pad(number) {
-  var n = number.toString();
-  return n.length === 1 ? '0' + n : n;
-}
+Suite.prototype.appendOnlySuite = function(suite) {
+  this._onlySuites.push(suite);
+};
 
 /**
- * Turn a `date` into an ISO string.
- *
- * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
+ * Adds a test to the list of tests marked `only`.
  *
- * @param {Date} date
- * @return {string}
+ * @private
+ * @param {Test} test
  */
-function toISOString(date) {
-  return date.getUTCFullYear()
-    + '-' + pad(date.getUTCMonth() + 1)
-    + '-' + pad(date.getUTCDate())
-    + 'T' + pad(date.getUTCHours())
-    + ':' + pad(date.getUTCMinutes())
-    + ':' + pad(date.getUTCSeconds())
-    + '.' + String((date.getUTCMilliseconds()/1000).toFixed(3)).slice(2, 5)
-    + 'Z';
-}
+Suite.prototype.appendOnlyTest = function(test) {
+  this._onlyTests.push(test);
+};
 
-/*
- * Exports.
+/**
+ * Returns the array of hooks by hook name; see `HOOK_TYPE_*` constants.
+ * @private
  */
-
-module.exports = toISOString;
-
-},{}],38:[function(require,module,exports){
-(function (process,Buffer){
-/* eslint-env browser */
+Suite.prototype.getHooks = function getHooks(name) {
+  return this['_' + name];
+};
 
 /**
- * Module dependencies.
+ * Cleans up the references to all the deferred functions
+ * (before/after/beforeEach/afterEach) and tests of a Suite.
+ * These must be deleted otherwise a memory leak can happen,
+ * as those functions may reference variables from closures,
+ * thus those variables can never be garbage collected as long
+ * as the deferred functions exist.
+ *
+ * @private
  */
+Suite.prototype.cleanReferences = function cleanReferences() {
+  function cleanArrReferences(arr) {
+    for (var i = 0; i < arr.length; i++) {
+      delete arr[i].fn;
+    }
+  }
 
-var JSON = require('json3');
-var basename = require('path').basename;
-var debug = require('debug')('mocha:watch');
-var exists = require('fs').existsSync || require('path').existsSync;
-var glob = require('glob');
-var path = require('path');
-var join = path.join;
-var readdirSync = require('fs').readdirSync;
-var statSync = require('fs').statSync;
-var watchFile = require('fs').watchFile;
-var toISOString = require('./to-iso-string');
+  if (Array.isArray(this._beforeAll)) {
+    cleanArrReferences(this._beforeAll);
+  }
 
-/**
- * Ignored directories.
- */
+  if (Array.isArray(this._beforeEach)) {
+    cleanArrReferences(this._beforeEach);
+  }
 
-var ignore = ['node_modules', '.git'];
+  if (Array.isArray(this._afterAll)) {
+    cleanArrReferences(this._afterAll);
+  }
 
-exports.inherits = require('util').inherits;
+  if (Array.isArray(this._afterEach)) {
+    cleanArrReferences(this._afterEach);
+  }
 
-/**
- * Escape special characters in the given string of html.
- *
- * @api private
- * @param  {string} html
- * @return {string}
- */
-exports.escape = function(html) {
-  return String(html)
-    .replace(/&/g, '&amp;')
-    .replace(/"/g, '&quot;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;');
+  for (var i = 0; i < this.tests.length; i++) {
+    delete this.tests[i].fn;
+  }
 };
 
-/**
- * Array#forEach (<=IE8)
- *
- * @api private
- * @param {Array} arr
- * @param {Function} fn
- * @param {Object} scope
- */
-exports.forEach = function(arr, fn, scope) {
-  for (var i = 0, l = arr.length; i < l; i++) {
-    fn.call(scope, arr[i], i);
+var constants = utils.defineConstants(
+  /**
+   * {@link Suite}-related constants.
+   * @public
+   * @memberof Suite
+   * @alias constants
+   * @readonly
+   * @static
+   * @enum {string}
+   */
+  {
+    /**
+     * Event emitted after a test file has been loaded Not emitted in browser.
+     */
+    EVENT_FILE_POST_REQUIRE: 'post-require',
+    /**
+     * Event emitted before a test file has been loaded. In browser, this is emitted once an interface has been selected.
+     */
+    EVENT_FILE_PRE_REQUIRE: 'pre-require',
+    /**
+     * Event emitted immediately after a test file has been loaded. Not emitted in browser.
+     */
+    EVENT_FILE_REQUIRE: 'require',
+    /**
+     * Event emitted when `global.run()` is called (use with `delay` option)
+     */
+    EVENT_ROOT_SUITE_RUN: 'run',
+
+    /**
+     * Namespace for collection of a `Suite`'s "after all" hooks
+     */
+    HOOK_TYPE_AFTER_ALL: 'afterAll',
+    /**
+     * Namespace for collection of a `Suite`'s "after each" hooks
+     */
+    HOOK_TYPE_AFTER_EACH: 'afterEach',
+    /**
+     * Namespace for collection of a `Suite`'s "before all" hooks
+     */
+    HOOK_TYPE_BEFORE_ALL: 'beforeAll',
+    /**
+     * Namespace for collection of a `Suite`'s "before all" hooks
+     */
+    HOOK_TYPE_BEFORE_EACH: 'beforeEach',
+
+    // the following events are all deprecated
+
+    /**
+     * Emitted after an "after all" `Hook` has been added to a `Suite`. Deprecated
+     */
+    EVENT_SUITE_ADD_HOOK_AFTER_ALL: 'afterAll',
+    /**
+     * Emitted after an "after each" `Hook` has been added to a `Suite` Deprecated
+     */
+    EVENT_SUITE_ADD_HOOK_AFTER_EACH: 'afterEach',
+    /**
+     * Emitted after an "before all" `Hook` has been added to a `Suite` Deprecated
+     */
+    EVENT_SUITE_ADD_HOOK_BEFORE_ALL: 'beforeAll',
+    /**
+     * Emitted after an "before each" `Hook` has been added to a `Suite` Deprecated
+     */
+    EVENT_SUITE_ADD_HOOK_BEFORE_EACH: 'beforeEach',
+    /**
+     * Emitted after a child `Suite` has been added to a `Suite`. Deprecated
+     */
+    EVENT_SUITE_ADD_SUITE: 'suite',
+    /**
+     * Emitted after a `Test` has been added to a `Suite`. Deprecated
+     */
+    EVENT_SUITE_ADD_TEST: 'test'
   }
-};
+);
 
 /**
- * Test if the given obj is type of string.
- *
- * @api private
- * @param {Object} obj
- * @return {boolean}
+ * @summary There are no known use cases for these events.
+ * @desc This is a `Set`-like object having all keys being the constant's string value and the value being `true`.
+ * @todo Remove eventually
+ * @type {Object<string,boolean>}
+ * @ignore
  */
-exports.isString = function(obj) {
-  return typeof obj === 'string';
-};
+var deprecatedEvents = Object.keys(constants)
+  .filter(function(constant) {
+    return constant.substring(0, 15) === 'EVENT_SUITE_ADD';
+  })
+  .reduce(function(acc, constant) {
+    acc[constants[constant]] = true;
+    return acc;
+  }, utils.createMap());
+
+Suite.constants = constants;
+
+},{"./errors":6,"./hook":7,"./utils":38,"debug":45,"events":50,"ms":60}],37:[function(require,module,exports){
+'use strict';
+var Runnable = require('./runnable');
+var utils = require('./utils');
+var errors = require('./errors');
+var createInvalidArgumentTypeError = errors.createInvalidArgumentTypeError;
+var isString = utils.isString;
+
+module.exports = Test;
 
 /**
- * Array#map (<=IE8)
+ * Initialize a new `Test` with the given `title` and callback `fn`.
  *
- * @api private
- * @param {Array} arr
- * @param {Function} fn
- * @param {Object} scope
- * @return {Array}
+ * @public
+ * @class
+ * @extends Runnable
+ * @param {String} title - Test title (required)
+ * @param {Function} [fn] - Test callback.  If omitted, the Test is considered "pending"
  */
-exports.map = function(arr, fn, scope) {
-  var result = [];
-  for (var i = 0, l = arr.length; i < l; i++) {
-    result.push(fn.call(scope, arr[i], i, arr));
+function Test(title, fn) {
+  if (!isString(title)) {
+    throw createInvalidArgumentTypeError(
+      'Test argument "title" should be a string. Received type "' +
+        typeof title +
+        '"',
+      'title',
+      'string'
+    );
   }
-  return result;
-};
+  Runnable.call(this, title, fn);
+  this.pending = !fn;
+  this.type = 'test';
+}
 
 /**
- * Array#indexOf (<=IE8)
- *
- * @api private
- * @param {Array} arr
- * @param {Object} obj to find index of
- * @param {number} start
- * @return {number}
+ * Inherit from `Runnable.prototype`.
  */
-var indexOf = exports.indexOf = function(arr, obj, start) {
-  for (var i = start || 0, l = arr.length; i < l; i++) {
-    if (arr[i] === obj) {
-      return i;
-    }
-  }
-  return -1;
+utils.inherits(Test, Runnable);
+
+Test.prototype.clone = function() {
+  var test = new Test(this.title, this.fn);
+  test.timeout(this.timeout());
+  test.slow(this.slow());
+  test.enableTimeouts(this.enableTimeouts());
+  test.retries(this.retries());
+  test.currentRetry(this.currentRetry());
+  test.globals(this.globals());
+  test.parent = this.parent;
+  test.file = this.file;
+  test.ctx = this.ctx;
+  return test;
 };
 
+},{"./errors":6,"./runnable":33,"./utils":38}],38:[function(require,module,exports){
+(function (process,Buffer){
+'use strict';
+
 /**
- * Array#reduce (<=IE8)
- *
- * @api private
- * @param {Array} arr
- * @param {Function} fn
- * @param {Object} val Initial value.
- * @return {*}
+ * Various utility functions used throughout Mocha's codebase.
+ * @module utils
  */
-var reduce = exports.reduce = function(arr, fn, val) {
-  var rval = val;
 
-  for (var i = 0, l = arr.length; i < l; i++) {
-    rval = fn(rval, arr[i], i, arr);
-  }
+/**
+ * Module dependencies.
+ */
 
-  return rval;
-};
+var fs = require('fs');
+var path = require('path');
+var util = require('util');
+var glob = require('glob');
+var he = require('he');
+var errors = require('./errors');
+var createNoFilesMatchPatternError = errors.createNoFilesMatchPatternError;
+var createMissingArgumentError = errors.createMissingArgumentError;
+
+var assign = (exports.assign = require('object.assign').getPolyfill());
 
 /**
- * Array#filter (<=IE8)
+ * Inherit the prototype methods from one constructor into another.
  *
- * @api private
- * @param {Array} arr
- * @param {Function} fn
- * @return {Array}
+ * @param {function} ctor - Constructor function which needs to inherit the
+ *     prototype.
+ * @param {function} superCtor - Constructor function to inherit prototype from.
+ * @throws {TypeError} if either constructor is null, or if super constructor
+ *     lacks a prototype.
  */
-exports.filter = function(arr, fn) {
-  var ret = [];
-
-  for (var i = 0, l = arr.length; i < l; i++) {
-    var val = arr[i];
-    if (fn(val, i, arr)) {
-      ret.push(val);
-    }
-  }
-
-  return ret;
-};
+exports.inherits = util.inherits;
 
 /**
- * Array#some (<=IE8)
+ * Escape special characters in the given string of html.
  *
- * @api private
- * @param {Array} arr
- * @param {Function} fn
- * @return {Array}
+ * @private
+ * @param  {string} html
+ * @return {string}
  */
-exports.some = function(arr, fn) {
-  for (var i = 0, l = arr.length; i < l; i++) {
-    if (fn(arr[i])) {
-      return true;
-    }
-  }
-  return false;
+exports.escape = function(html) {
+  return he.encode(String(html), {useNamedReferences: false});
 };
 
 /**
- * Object.keys (<=IE8)
+ * Test if the given obj is type of string.
  *
- * @api private
+ * @private
  * @param {Object} obj
- * @return {Array} keys
+ * @return {boolean}
  */
-exports.keys = typeof Object.keys === 'function' ? Object.keys : function(obj) {
-  var keys = [];
-  var has = Object.prototype.hasOwnProperty; // for `window` on <=IE8
-
-  for (var key in obj) {
-    if (has.call(obj, key)) {
-      keys.push(key);
-    }
-  }
-
-  return keys;
+exports.isString = function(obj) {
+  return typeof obj === 'string';
 };
 
 /**
  * Watch the given `files` for changes
  * and invoke `fn(file)` on modification.
  *
- * @api private
+ * @private
  * @param {Array} files
  * @param {Function} fn
  */
 exports.watch = function(files, fn) {
-  var options = { interval: 100 };
+  var options = {interval: 100};
+  var debug = require('debug')('mocha:watch');
   files.forEach(function(file) {
     debug('file %s', file);
-    watchFile(file, options, function(curr, prev) {
+    fs.watchFile(file, options, function(curr, prev) {
       if (prev.mtime < curr.mtime) {
         fn(file);
       }
@@ -6074,63 +7367,52 @@ exports.watch = function(files, fn) {
 };
 
 /**
- * Array.isArray (<=IE8)
+ * Predicate to screen `pathname` for further consideration.
  *
- * @api private
- * @param {Object} obj
- * @return {Boolean}
- */
-var isArray = typeof Array.isArray === 'function' ? Array.isArray : function(obj) {
-  return Object.prototype.toString.call(obj) === '[object Array]';
-};
-
-exports.isArray = isArray;
-
-/**
- * Buffer.prototype.toJSON polyfill.
+ * @description
+ * Returns <code>false</code> for pathname referencing:
+ * <ul>
+ *   <li>'npm' package installation directory
+ *   <li>'git' version control directory
+ * </ul>
  *
- * @type {Function}
+ * @private
+ * @param {string} pathname - File or directory name to screen
+ * @return {boolean} whether pathname should be further considered
+ * @example
+ * ['node_modules', 'test.js'].filter(considerFurther); // => ['test.js']
  */
-if (typeof Buffer !== 'undefined' && Buffer.prototype) {
-  Buffer.prototype.toJSON = Buffer.prototype.toJSON || function() {
-    return Array.prototype.slice.call(this, 0);
-  };
-}
+function considerFurther(pathname) {
+  var ignore = ['node_modules', '.git'];
 
-/**
- * Ignored files.
- *
- * @api private
- * @param {string} path
- * @return {boolean}
- */
-function ignored(path) {
-  return !~ignore.indexOf(path);
+  return !~ignore.indexOf(pathname);
 }
 
 /**
  * Lookup files in the given `dir`.
  *
- * @api private
+ * @description
+ * Filenames are returned in _traversal_ order by the OS/filesystem.
+ * **Make no assumption that the names will be sorted in any fashion.**
+ *
+ * @private
  * @param {string} dir
- * @param {string[]} [ext=['.js']]
+ * @param {string[]} [exts=['js']]
  * @param {Array} [ret=[]]
  * @return {Array}
  */
-exports.files = function(dir, ext, ret) {
+exports.files = function(dir, exts, ret) {
   ret = ret || [];
-  ext = ext || ['js'];
-
-  var re = new RegExp('\\.(' + ext.join('|') + ')$');
-
-  readdirSync(dir)
-    .filter(ignored)
-    .forEach(function(path) {
-      path = join(dir, path);
-      if (statSync(path).isDirectory()) {
-        exports.files(path, ext, ret);
-      } else if (path.match(re)) {
-        ret.push(path);
+  exts = exts || ['js'];
+
+  fs.readdirSync(dir)
+    .filter(considerFurther)
+    .forEach(function(dirent) {
+      var pathname = path.join(dir, dirent);
+      if (fs.lstatSync(pathname).isDirectory()) {
+        exports.files(pathname, exts, ret);
+      } else if (hasMatchingExtname(pathname, exts)) {
+        ret.push(pathname);
       }
     });
 
@@ -6140,7 +7422,7 @@ exports.files = function(dir, ext, ret) {
 /**
  * Compute a slug from the given `str`.
  *
- * @api private
+ * @private
  * @param {string} str
  * @return {string}
  */
@@ -6159,52 +7441,53 @@ exports.slug = function(str) {
  */
 exports.clean = function(str) {
   str = str
-    .replace(/\r\n?|[\n\u2028\u2029]/g, '\n').replace(/^\uFEFF/, '')
+    .replace(/\r\n?|[\n\u2028\u2029]/g, '\n')
+    .replace(/^\uFEFF/, '')
     // (traditional)->  space/name     parameters    body     (lambda)-> parameters       body   multi-statement/single          keep body content
-    .replace(/^function(?:\s*|\s+[^(]*)\([^)]*\)\s*\{((?:.|\n)*?)\s*\}$|^\([^)]*\)\s*=>\s*(?:\{((?:.|\n)*?)\s*\}|((?:.|\n)*))$/, '$1$2$3');
+    .replace(
+      /^function(?:\s*|\s+[^(]*)\([^)]*\)\s*\{((?:.|\n)*?)\s*\}$|^\([^)]*\)\s*=>\s*(?:\{((?:.|\n)*?)\s*\}|((?:.|\n)*))$/,
+      '$1$2$3'
+    );
 
   var spaces = str.match(/^\n?( *)/)[1].length;
   var tabs = str.match(/^\n?(\t*)/)[1].length;
-  var re = new RegExp('^\n?' + (tabs ? '\t' : ' ') + '{' + (tabs ? tabs : spaces) + '}', 'gm');
+  var re = new RegExp(
+    '^\n?' + (tabs ? '\t' : ' ') + '{' + (tabs || spaces) + '}',
+    'gm'
+  );
 
   str = str.replace(re, '');
 
-  return exports.trim(str);
-};
-
-/**
- * Trim the given `str`.
- *
- * @api private
- * @param {string} str
- * @return {string}
- */
-exports.trim = function(str) {
-  return str.replace(/^\s+|\s+$/g, '');
+  return str.trim();
 };
 
 /**
  * Parse the given `qs`.
  *
- * @api private
+ * @private
  * @param {string} qs
  * @return {Object}
  */
 exports.parseQuery = function(qs) {
-  return reduce(qs.replace('?', '').split('&'), function(obj, pair) {
-    var i = pair.indexOf('=');
-    var key = pair.slice(0, i);
-    var val = pair.slice(++i);
-
-    obj[key] = decodeURIComponent(val);
-    return obj;
-  }, {});
+  return qs
+    .replace('?', '')
+    .split('&')
+    .reduce(function(obj, pair) {
+      var i = pair.indexOf('=');
+      var key = pair.slice(0, i);
+      var val = pair.slice(++i);
+
+      // Due to how the URLSearchParams API treats spaces
+      obj[key] = decodeURIComponent(val.replace(/\+/g, '%20'));
+
+      return obj;
+    }, {});
 };
 
 /**
  * Highlight the given string of `js`.
  *
- * @api private
+ * @private
  * @param {string} js
  * @return {string}
  */
@@ -6216,14 +7499,20 @@ function highlight(js) {
     .replace(/('.*?')/gm, '<span class="string">$1</span>')
     .replace(/(\d+\.\d+)/gm, '<span class="number">$1</span>')
     .replace(/(\d+)/gm, '<span class="number">$1</span>')
-    .replace(/\bnew[ \t]+(\w+)/gm, '<span class="keyword">new</span> <span class="init">$1</span>')
-    .replace(/\b(function|new|throw|return|var|if|else)\b/gm, '<span class="keyword">$1</span>');
+    .replace(
+      /\bnew[ \t]+(\w+)/gm,
+      '<span class="keyword">new</span> <span class="init">$1</span>'
+    )
+    .replace(
+      /\b(function|new|throw|return|var|if|else)\b/gm,
+      '<span class="keyword">$1</span>'
+    );
 }
 
 /**
  * Highlight the contents of tag `name`.
  *
- * @api private
+ * @private
  * @param {string} name
  */
 exports.highlightTags = function(name) {
@@ -6242,7 +7531,7 @@ exports.highlightTags = function(name) {
  * Objects w/ no properties return `'{}'`
  * All else: return result of `value.toString()`
  *
- * @api private
+ * @private
  * @param {*} value The value to inspect.
  * @param {string} typeHint The type of the value
  * @returns {string}
@@ -6264,7 +7553,7 @@ function emptyRepresentation(value, typeHint) {
  * Takes some variable and asks `Object.prototype.toString()` what it thinks it
  * is.
  *
- * @api private
+ * @private
  * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
  * @param {*} value The value to test.
  * @returns {string} Computed type
@@ -6281,18 +7570,19 @@ function emptyRepresentation(value, typeHint) {
  * type(global) // 'global'
  * type(new String('foo') // 'object'
  */
-var type = exports.type = function type(value) {
+var type = (exports.type = function type(value) {
   if (value === undefined) {
     return 'undefined';
   } else if (value === null) {
     return 'null';
-  } else if (typeof Buffer !== 'undefined' && Buffer.isBuffer(value)) {
+  } else if (Buffer.isBuffer(value)) {
     return 'buffer';
   }
-  return Object.prototype.toString.call(value)
-    .replace(/^\[.+\s(.+?)\]$/, '$1')
+  return Object.prototype.toString
+    .call(value)
+    .replace(/^\[.+\s(.+?)]$/, '$1')
     .toLowerCase();
-};
+});
 
 /**
  * Stringify `value`. Different behavior depending on type of value:
@@ -6304,7 +7594,7 @@ var type = exports.type = function type(value) {
  * - If `value` has properties, call {@link exports.canonicalize} on it, then return result of
  *   JSON.stringify().
  *
- * @api private
+ * @private
  * @see exports.type
  * @param {*} value
  * @return {string}
@@ -6312,18 +7602,20 @@ var type = exports.type = function type(value) {
 exports.stringify = function(value) {
   var typeHint = type(value);
 
-  if (!~indexOf(['object', 'array', 'function'], typeHint)) {
+  if (!~['object', 'array', 'function'].indexOf(typeHint)) {
     if (typeHint === 'buffer') {
-      var json = value.toJSON();
+      var json = Buffer.prototype.toJSON.call(value);
       // Based on the toJSON result
-      return jsonStringify(json.data && json.type ? json.data : json, 2)
-        .replace(/,(\n|$)/g, '$1');
+      return jsonStringify(
+        json.data && json.type ? json.data : json,
+        2
+      ).replace(/,(\n|$)/g, '$1');
     }
 
     // IE7/IE8 has a bizarre String constructor; needs to be coerced
     // into an array and back to obj.
     if (typeHint === 'string' && typeof value === 'object') {
-      value = reduce(value.split(''), function(acc, char, idx) {
+      value = value.split('').reduce(function(acc, char, idx) {
         acc[idx] = char;
         return acc;
       }, {});
@@ -6335,7 +7627,10 @@ exports.stringify = function(value) {
 
   for (var prop in value) {
     if (Object.prototype.hasOwnProperty.call(value, prop)) {
-      return jsonStringify(exports.canonicalize(value, null, typeHint), 2).replace(/,(\n|$)/g, '$1');
+      return jsonStringify(
+        exports.canonicalize(value, null, typeHint),
+        2
+      ).replace(/,(\n|$)/g, '$1');
     }
   }
 
@@ -6345,7 +7640,7 @@ exports.stringify = function(value) {
 /**
  * like JSON.stringify but more sense.
  *
- * @api private
+ * @private
  * @param {Object}  object
  * @param {number=} spaces
  * @param {number=} depth
@@ -6359,9 +7654,12 @@ function jsonStringify(object, spaces, depth) {
 
   depth = depth || 1;
   var space = spaces * depth;
-  var str = isArray(object) ? '[' : '{';
-  var end = isArray(object) ? ']' : '}';
-  var length = typeof object.length === 'number' ? object.length : exports.keys(object).length;
+  var str = Array.isArray(object) ? '[' : '{';
+  var end = Array.isArray(object) ? ']' : '}';
+  var length =
+    typeof object.length === 'number'
+      ? object.length
+      : Object.keys(object).length;
   // `.repeat()` polyfill
   function repeat(s, n) {
     return new Array(n).join(s);
@@ -6381,17 +7679,13 @@ function jsonStringify(object, spaces, depth) {
       case 'regexp':
       case 'symbol':
       case 'number':
-        val = val === 0 && (1 / val) === -Infinity // `-0`
-          ? '-0'
-          : val.toString();
+        val =
+          val === 0 && 1 / val === -Infinity // `-0`
+            ? '-0'
+            : val.toString();
         break;
       case 'date':
-        var sDate;
-        if (isNaN(val.getTime())) { // Invalid date
-          sDate = val.toString();
-        } else {
-          sDate = val.toISOString ? val.toISOString() : toISOString(val);
-        }
+        var sDate = isNaN(val.getTime()) ? val.toString() : val.toISOString();
         val = '[Date: ' + sDate + ']';
         break;
       case 'buffer':
@@ -6401,9 +7695,10 @@ function jsonStringify(object, spaces, depth) {
         val = '[Buffer: ' + jsonStringify(json, 2, depth + 1) + ']';
         break;
       default:
-        val = (val === '[Function]' || val === '[Circular]')
-          ? val
-          : JSON.stringify(val); // string
+        val =
+          val === '[Function]' || val === '[Circular]'
+            ? val
+            : JSON.stringify(val); // string
     }
     return val;
   }
@@ -6413,28 +7708,21 @@ function jsonStringify(object, spaces, depth) {
       continue; // not my business
     }
     --length;
-    str += '\n ' + repeat(' ', space)
-      + (isArray(object) ? '' : '"' + i + '": ') // key
-      + _stringify(object[i])                     // value
-      + (length ? ',' : '');                     // comma
+    str +=
+      '\n ' +
+      repeat(' ', space) +
+      (Array.isArray(object) ? '' : '"' + i + '": ') + // key
+      _stringify(object[i]) + // value
+      (length ? ',' : ''); // comma
   }
 
-  return str
+  return (
+    str +
     // [], {}
-    + (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end);
+    (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end)
+  );
 }
 
-/**
- * Test if a value is a buffer.
- *
- * @api private
- * @param {*} value The value to test.
- * @return {boolean} True if `value` is a buffer, otherwise false
- */
-exports.isBuffer = function(value) {
-  return typeof Buffer !== 'undefined' && Buffer.isBuffer(value);
-};
-
 /**
  * Return a new Thing that has the keys in sorted order. Recursive.
  *
@@ -6447,7 +7735,7 @@ exports.isBuffer = function(value) {
  * - is a non-empty `Array`, `Object`, or `Function`, return the result of calling this function again.
  * - is an empty `Array`, `Object`, or `Function`, return the result of calling `emptyRepresentation()`
  *
- * @api private
+ * @private
  * @see {@link exports.stringify}
  * @param {*} value Thing to inspect.  May or may not have properties.
  * @param {Array} [stack=[]] Stack of seen values
@@ -6468,7 +7756,7 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
 
   stack = stack || [];
 
-  if (indexOf(stack, value) !== -1) {
+  if (stack.indexOf(value) !== -1) {
     return '[Circular]';
   }
 
@@ -6480,7 +7768,7 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
       break;
     case 'array':
       withStack(value, function() {
-        canonicalizedObj = exports.map(value, function(item) {
+        canonicalizedObj = value.map(function(item) {
           return exports.canonicalize(item, stack);
         });
       });
@@ -6500,9 +7788,11 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
     case 'object':
       canonicalizedObj = canonicalizedObj || {};
       withStack(value, function() {
-        exports.forEach(exports.keys(value).sort(), function(key) {
-          canonicalizedObj[key] = exports.canonicalize(value[key], stack);
-        });
+        Object.keys(value)
+          .sort()
+          .forEach(function(key) {
+            canonicalizedObj[key] = exports.canonicalize(value[key], stack);
+          });
       });
       break;
     case 'date':
@@ -6519,48 +7809,100 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
   return canonicalizedObj;
 };
 
+/**
+ * Determines if pathname has a matching file extension.
+ *
+ * @private
+ * @param {string} pathname - Pathname to check for match.
+ * @param {string[]} exts - List of file extensions (sans period).
+ * @return {boolean} whether file extension matches.
+ * @example
+ * hasMatchingExtname('foo.html', ['js', 'css']); // => false
+ */
+function hasMatchingExtname(pathname, exts) {
+  var suffix = path.extname(pathname).slice(1);
+  return exts.some(function(element) {
+    return suffix === element;
+  });
+}
+
+/**
+ * Determines if pathname would be a "hidden" file (or directory) on UN*X.
+ *
+ * @description
+ * On UN*X, pathnames beginning with a full stop (aka dot) are hidden during
+ * typical usage. Dotfiles, plain-text configuration files, are prime examples.
+ *
+ * @see {@link http://xahlee.info/UnixResource_dir/writ/unix_origin_of_dot_filename.html|Origin of Dot File Names}
+ *
+ * @private
+ * @param {string} pathname - Pathname to check for match.
+ * @return {boolean} whether pathname would be considered a hidden file.
+ * @example
+ * isHiddenOnUnix('.profile'); // => true
+ */
+function isHiddenOnUnix(pathname) {
+  return path.basename(pathname)[0] === '.';
+}
+
 /**
  * Lookup file names at the given `path`.
  *
- * @api public
- * @param {string} path Base path to start searching from.
- * @param {string[]} extensions File extensions to look for.
- * @param {boolean} recursive Whether or not to recurse into subdirectories.
+ * @description
+ * Filenames are returned in _traversal_ order by the OS/filesystem.
+ * **Make no assumption that the names will be sorted in any fashion.**
+ *
+ * @public
+ * @memberof Mocha.utils
+ * @todo Fix extension handling
+ * @param {string} filepath - Base path to start searching from.
+ * @param {string[]} extensions - File extensions to look for.
+ * @param {boolean} recursive - Whether to recurse into subdirectories.
  * @return {string[]} An array of paths.
+ * @throws {Error} if no files match pattern.
+ * @throws {TypeError} if `filepath` is directory and `extensions` not provided.
  */
-exports.lookupFiles = function lookupFiles(path, extensions, recursive) {
+exports.lookupFiles = function lookupFiles(filepath, extensions, recursive) {
   var files = [];
-  var re = new RegExp('\\.(' + extensions.join('|') + ')$');
+  var stat;
 
-  if (!exists(path)) {
-    if (exists(path + '.js')) {
-      path += '.js';
+  if (!fs.existsSync(filepath)) {
+    if (fs.existsSync(filepath + '.js')) {
+      filepath += '.js';
     } else {
-      files = glob.sync(path);
+      // Handle glob
+      files = glob.sync(filepath);
       if (!files.length) {
-        throw new Error("cannot resolve path (or pattern) '" + path + "'");
+        throw createNoFilesMatchPatternError(
+          'Cannot find any files matching pattern ' + exports.dQuote(filepath),
+          filepath
+        );
       }
       return files;
     }
   }
 
+  // Handle file
   try {
-    var stat = statSync(path);
+    stat = fs.statSync(filepath);
     if (stat.isFile()) {
-      return path;
+      return filepath;
     }
   } catch (err) {
     // ignore error
     return;
   }
 
-  readdirSync(path).forEach(function(file) {
-    file = join(path, file);
+  // Handle directory
+  fs.readdirSync(filepath).forEach(function(dirent) {
+    var pathname = path.join(filepath, dirent);
+    var stat;
+
     try {
-      var stat = statSync(file);
+      stat = fs.statSync(pathname);
       if (stat.isDirectory()) {
         if (recursive) {
-          files = files.concat(lookupFiles(file, extensions, recursive));
+          files = files.concat(lookupFiles(pathname, extensions, recursive));
         }
         return;
       }
@@ -6568,34 +7910,73 @@ exports.lookupFiles = function lookupFiles(path, extensions, recursive) {
       // ignore error
       return;
     }
-    if (!stat.isFile() || !re.test(file) || basename(file)[0] === '.') {
+    if (!extensions) {
+      throw createMissingArgumentError(
+        util.format(
+          'Argument %s required when argument %s is a directory',
+          exports.sQuote('extensions'),
+          exports.sQuote('filepath')
+        ),
+        'extensions',
+        'array'
+      );
+    }
+
+    if (
+      !stat.isFile() ||
+      !hasMatchingExtname(pathname, extensions) ||
+      isHiddenOnUnix(pathname)
+    ) {
       return;
     }
-    files.push(file);
+    files.push(pathname);
   });
 
   return files;
 };
 
 /**
- * Generate an undefined error with a message warning the user.
- *
- * @return {Error}
+ * process.emitWarning or a polyfill
+ * @see https://nodejs.org/api/process.html#process_process_emitwarning_warning_options
+ * @ignore
  */
+function emitWarning(msg, type) {
+  if (process.emitWarning) {
+    process.emitWarning(msg, type);
+  } else {
+    process.nextTick(function() {
+      console.warn(type + ': ' + msg);
+    });
+  }
+}
 
-exports.undefinedError = function() {
-  return new Error('Caught undefined error, did you throw without specifying what?');
+/**
+ * Show a deprecation warning. Each distinct message is only displayed once.
+ * Ignores empty messages.
+ *
+ * @param {string} [msg] - Warning to print
+ * @private
+ */
+exports.deprecate = function deprecate(msg) {
+  msg = String(msg);
+  if (msg && !deprecate.cache[msg]) {
+    deprecate.cache[msg] = true;
+    emitWarning(msg, 'DeprecationWarning');
+  }
 };
+exports.deprecate.cache = {};
 
 /**
- * Generate an undefined error if `err` is not defined.
+ * Show a generic warning.
+ * Ignores empty messages.
  *
- * @param {Error} err
- * @return {Error}
+ * @param {string} [msg] - Warning to print
+ * @private
  */
-
-exports.getError = function(err) {
-  return err || exports.undefinedError();
+exports.warn = function warn(msg) {
+  if (msg) {
+    emitWarning(msg);
+  }
 };
 
 /**
@@ -6609,36 +7990,41 @@ exports.getError = function(err) {
  */
 exports.stackTraceFilter = function() {
   // TODO: Replace with `process.browser`
-  var is = typeof document === 'undefined' ? { node: true } : { browser: true };
+  var is = typeof document === 'undefined' ? {node: true} : {browser: true};
   var slash = path.sep;
   var cwd;
   if (is.node) {
     cwd = process.cwd() + slash;
   } else {
-    cwd = (typeof location === 'undefined' ? window.location : location).href.replace(/\/[^\/]*$/, '/');
+    cwd = (typeof location === 'undefined'
+      ? window.location
+      : location
+    ).href.replace(/\/[^/]*$/, '/');
     slash = '/';
   }
 
   function isMochaInternal(line) {
-    return (~line.indexOf('node_modules' + slash + 'mocha' + slash))
-      || (~line.indexOf('node_modules' + slash + 'mocha.js'))
-      || (~line.indexOf('bower_components' + slash + 'mocha.js'))
-      || (~line.indexOf(slash + 'mocha.js'));
+    return (
+      ~line.indexOf('node_modules' + slash + 'mocha' + slash) ||
+      ~line.indexOf(slash + 'mocha.js')
+    );
   }
 
   function isNodeInternal(line) {
-    return (~line.indexOf('(timers.js:'))
-      || (~line.indexOf('(events.js:'))
-      || (~line.indexOf('(node.js:'))
-      || (~line.indexOf('(module.js:'))
-      || (~line.indexOf('GeneratorFunctionPrototype.next (native)'))
-      || false;
+    return (
+      ~line.indexOf('(timers.js:') ||
+      ~line.indexOf('(events.js:') ||
+      ~line.indexOf('(node.js:') ||
+      ~line.indexOf('(module.js:') ||
+      ~line.indexOf('GeneratorFunctionPrototype.next (native)') ||
+      false
+    );
   }
 
   return function(stack) {
     stack = stack.split('\n');
 
-    stack = reduce(stack, function(list, line) {
+    stack = stack.reduce(function(list, line) {
       if (isMochaInternal(line)) {
         return list;
       }
@@ -6648,8 +8034,8 @@ exports.stackTraceFilter = function() {
       }
 
       // Clean up cwd(absolute)
-      if (/\(?.+:\d+:\d+\)?$/.test(line)) {
-        line = line.replace(cwd, '');
+      if (/:\d+:\d+\)?$/.test(line)) {
+        line = line.replace('(' + cwd, '(');
       }
 
       list.push(line);
@@ -6662,89 +8048,260 @@ exports.stackTraceFilter = function() {
 
 /**
  * Crude, but effective.
- * @api
+ * @public
  * @param {*} value
  * @returns {boolean} Whether or not `value` is a Promise
  */
 exports.isPromise = function isPromise(value) {
-  return typeof value === 'object' && typeof value.then === 'function';
+  return (
+    typeof value === 'object' &&
+    value !== null &&
+    typeof value.then === 'function'
+  );
 };
 
-}).call(this,require('_process'),require("buffer").Buffer)
-},{"./to-iso-string":37,"_process":67,"buffer":44,"debug":2,"fs":42,"glob":42,"json3":54,"path":42,"util":84}],39:[function(require,module,exports){
-'use strict'
-
-exports.toByteArray = toByteArray
-exports.fromByteArray = fromByteArray
+/**
+ * Clamps a numeric value to an inclusive range.
+ *
+ * @param {number} value - Value to be clamped.
+ * @param {numer[]} range - Two element array specifying [min, max] range.
+ * @returns {number} clamped value
+ */
+exports.clamp = function clamp(value, range) {
+  return Math.min(Math.max(value, range[0]), range[1]);
+};
+
+/**
+ * Single quote text by combining with undirectional ASCII quotation marks.
+ *
+ * @description
+ * Provides a simple means of markup for quoting text to be used in output.
+ * Use this to quote names of variables, methods, and packages.
+ *
+ * <samp>package 'foo' cannot be found</samp>
+ *
+ * @private
+ * @param {string} str - Value to be quoted.
+ * @returns {string} quoted value
+ * @example
+ * sQuote('n') // => 'n'
+ */
+exports.sQuote = function(str) {
+  return "'" + str + "'";
+};
+
+/**
+ * Double quote text by combining with undirectional ASCII quotation marks.
+ *
+ * @description
+ * Provides a simple means of markup for quoting text to be used in output.
+ * Use this to quote names of datatypes, classes, pathnames, and strings.
+ *
+ * <samp>argument 'value' must be "string" or "number"</samp>
+ *
+ * @private
+ * @param {string} str - Value to be quoted.
+ * @returns {string} quoted value
+ * @example
+ * dQuote('number') // => "number"
+ */
+exports.dQuote = function(str) {
+  return '"' + str + '"';
+};
+
+/**
+ * Provides simplistic message translation for dealing with plurality.
+ *
+ * @description
+ * Use this to create messages which need to be singular or plural.
+ * Some languages have several plural forms, so _complete_ message clauses
+ * are preferable to generating the message on the fly.
+ *
+ * @private
+ * @param {number} n - Non-negative integer
+ * @param {string} msg1 - Message to be used in English for `n = 1`
+ * @param {string} msg2 - Message to be used in English for `n = 0, 2, 3, ...`
+ * @returns {string} message corresponding to value of `n`
+ * @example
+ * var sprintf = require('util').format;
+ * var pkgs = ['one', 'two'];
+ * var msg = sprintf(
+ *   ngettext(
+ *     pkgs.length,
+ *     'cannot load package: %s',
+ *     'cannot load packages: %s'
+ *   ),
+ *   pkgs.map(sQuote).join(', ')
+ * );
+ * console.log(msg); // => cannot load packages: 'one', 'two'
+ */
+exports.ngettext = function(n, msg1, msg2) {
+  if (typeof n === 'number' && n >= 0) {
+    return n === 1 ? msg1 : msg2;
+  }
+};
+
+/**
+ * It's a noop.
+ * @public
+ */
+exports.noop = function() {};
+
+/**
+ * Creates a map-like object.
+ *
+ * @description
+ * A "map" is an object with no prototype, for our purposes. In some cases
+ * this would be more appropriate than a `Map`, especially if your environment
+ * doesn't support it. Recommended for use in Mocha's public APIs.
+ *
+ * @public
+ * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map|MDN:Map}
+ * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create#Custom_and_Null_objects|MDN:Object.create - Custom objects}
+ * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign|MDN:Object.assign}
+ * @param {...*} [obj] - Arguments to `Object.assign()`.
+ * @returns {Object} An object with no prototype, having `...obj` properties
+ */
+exports.createMap = function(obj) {
+  return assign.apply(
+    null,
+    [Object.create(null)].concat(Array.prototype.slice.call(arguments))
+  );
+};
+
+/**
+ * Creates a read-only map-like object.
+ *
+ * @description
+ * This differs from {@link module:utils.createMap createMap} only in that
+ * the argument must be non-empty, because the result is frozen.
+ *
+ * @see {@link module:utils.createMap createMap}
+ * @param {...*} [obj] - Arguments to `Object.assign()`.
+ * @returns {Object} A frozen object with no prototype, having `...obj` properties
+ * @throws {TypeError} if argument is not a non-empty object.
+ */
+exports.defineConstants = function(obj) {
+  if (type(obj) !== 'object' || !Object.keys(obj).length) {
+    throw new TypeError('Invalid argument; expected a non-empty object');
+  }
+  return Object.freeze(exports.createMap(obj));
+};
+
+}).call(this,require('_process'),require("buffer").Buffer)
+},{"./errors":6,"_process":69,"buffer":43,"debug":45,"fs":42,"glob":42,"he":54,"object.assign":65,"path":42,"util":89}],39:[function(require,module,exports){
+'use strict'
+
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
 
 var lookup = []
 var revLookup = []
 var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
 
-function init () {
-  var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
-  for (var i = 0, len = code.length; i < len; ++i) {
-    lookup[i] = code[i]
-    revLookup[code.charCodeAt(i)] = i
-  }
-
-  revLookup['-'.charCodeAt(0)] = 62
-  revLookup['_'.charCodeAt(0)] = 63
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+  lookup[i] = code[i]
+  revLookup[code.charCodeAt(i)] = i
 }
 
-init()
+// Support decoding URL-safe base64 strings, as Node.js does.
+// See: https://en.wikipedia.org/wiki/Base64#URL_applications
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
 
-function toByteArray (b64) {
-  var i, j, l, tmp, placeHolders, arr
+function getLens (b64) {
   var len = b64.length
 
   if (len % 4 > 0) {
     throw new Error('Invalid string. Length must be a multiple of 4')
   }
 
-  // the number of equal signs (place holders)
-  // if there are two placeholders, than the two characters before it
-  // represent one byte
-  // if there is only one, then the three characters before it represent 2 bytes
-  // this is just a cheap hack to not do indexOf twice
-  placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+  // Trim off extra bytes after placeholder bytes are found
+  // See: https://github.com/beatgammit/base64-js/issues/42
+  var validLen = b64.indexOf('=')
+  if (validLen === -1) validLen = len
+
+  var placeHoldersLen = validLen === len
+    ? 0
+    : 4 - (validLen % 4)
+
+  return [validLen, placeHoldersLen]
+}
+
+// base64 is 4/3 + up to two characters of the original data
+function byteLength (b64) {
+  var lens = getLens(b64)
+  var validLen = lens[0]
+  var placeHoldersLen = lens[1]
+  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
+}
+
+function _byteLength (b64, validLen, placeHoldersLen) {
+  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
+}
+
+function toByteArray (b64) {
+  var tmp
+  var lens = getLens(b64)
+  var validLen = lens[0]
+  var placeHoldersLen = lens[1]
+
+  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
 
-  // base64 is 4/3 + up to two characters of the original data
-  arr = new Arr(len * 3 / 4 - placeHolders)
+  var curByte = 0
 
   // if there are placeholders, only get up to the last complete 4 chars
-  l = placeHolders > 0 ? len - 4 : len
+  var len = placeHoldersLen > 0
+    ? validLen - 4
+    : validLen
 
-  var L = 0
+  for (var i = 0; i < len; i += 4) {
+    tmp =
+      (revLookup[b64.charCodeAt(i)] << 18) |
+      (revLookup[b64.charCodeAt(i + 1)] << 12) |
+      (revLookup[b64.charCodeAt(i + 2)] << 6) |
+      revLookup[b64.charCodeAt(i + 3)]
+    arr[curByte++] = (tmp >> 16) & 0xFF
+    arr[curByte++] = (tmp >> 8) & 0xFF
+    arr[curByte++] = tmp & 0xFF
+  }
 
-  for (i = 0, j = 0; i < l; i += 4, j += 3) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
-    arr[L++] = (tmp >> 16) & 0xFF
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
+  if (placeHoldersLen === 2) {
+    tmp =
+      (revLookup[b64.charCodeAt(i)] << 2) |
+      (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[curByte++] = tmp & 0xFF
   }
 
-  if (placeHolders === 2) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
-    arr[L++] = tmp & 0xFF
-  } else if (placeHolders === 1) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
+  if (placeHoldersLen === 1) {
+    tmp =
+      (revLookup[b64.charCodeAt(i)] << 10) |
+      (revLookup[b64.charCodeAt(i + 1)] << 4) |
+      (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[curByte++] = (tmp >> 8) & 0xFF
+    arr[curByte++] = tmp & 0xFF
   }
 
   return arr
 }
 
 function tripletToBase64 (num) {
-  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+  return lookup[num >> 18 & 0x3F] +
+    lookup[num >> 12 & 0x3F] +
+    lookup[num >> 6 & 0x3F] +
+    lookup[num & 0x3F]
 }
 
 function encodeChunk (uint8, start, end) {
   var tmp
   var output = []
   for (var i = start; i < end; i += 3) {
-    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    tmp =
+      ((uint8[i] << 16) & 0xFF0000) +
+      ((uint8[i + 1] << 8) & 0xFF00) +
+      (uint8[i + 2] & 0xFF)
     output.push(tripletToBase64(tmp))
   }
   return output.join('')
@@ -6754,31 +8311,34 @@ function fromByteArray (uint8) {
   var tmp
   var len = uint8.length
   var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
-  var output = ''
   var parts = []
   var maxChunkLength = 16383 // must be multiple of 3
 
   // go through the array every three bytes, we'll deal with trailing stuff later
   for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
-    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+    parts.push(encodeChunk(
+      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
+    ))
   }
 
   // pad the end with zeros, but make sure to not forget the extra bytes
   if (extraBytes === 1) {
     tmp = uint8[len - 1]
-    output += lookup[tmp >> 2]
-    output += lookup[(tmp << 4) & 0x3F]
-    output += '=='
+    parts.push(
+      lookup[tmp >> 2] +
+      lookup[(tmp << 4) & 0x3F] +
+      '=='
+    )
   } else if (extraBytes === 2) {
-    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
-    output += lookup[tmp >> 10]
-    output += lookup[(tmp >> 4) & 0x3F]
-    output += lookup[(tmp << 2) & 0x3F]
-    output += '='
+    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
+    parts.push(
+      lookup[tmp >> 10] +
+      lookup[(tmp >> 4) & 0x3F] +
+      lookup[(tmp << 2) & 0x3F] +
+      '='
+    )
   }
 
-  parts.push(output)
-
   return parts.join('')
 }
 
@@ -6813,126 +8373,14 @@ BrowserStdout.prototype._write = function(chunks, encoding, cb) {
 }
 
 }).call(this,require('_process'))
-},{"_process":67,"stream":79,"util":84}],42:[function(require,module,exports){
+},{"_process":69,"stream":84,"util":89}],42:[function(require,module,exports){
 arguments[4][40][0].apply(exports,arguments)
 },{"dup":40}],43:[function(require,module,exports){
-(function (global){
-'use strict';
-
-var buffer = require('buffer');
-var Buffer = buffer.Buffer;
-var SlowBuffer = buffer.SlowBuffer;
-var MAX_LEN = buffer.kMaxLength || 2147483647;
-exports.alloc = function alloc(size, fill, encoding) {
-  if (typeof Buffer.alloc === 'function') {
-    return Buffer.alloc(size, fill, encoding);
-  }
-  if (typeof encoding === 'number') {
-    throw new TypeError('encoding must not be number');
-  }
-  if (typeof size !== 'number') {
-    throw new TypeError('size must be a number');
-  }
-  if (size > MAX_LEN) {
-    throw new RangeError('size is too large');
-  }
-  var enc = encoding;
-  var _fill = fill;
-  if (_fill === undefined) {
-    enc = undefined;
-    _fill = 0;
-  }
-  var buf = new Buffer(size);
-  if (typeof _fill === 'string') {
-    var fillBuf = new Buffer(_fill, enc);
-    var flen = fillBuf.length;
-    var i = -1;
-    while (++i < size) {
-      buf[i] = fillBuf[i % flen];
-    }
-  } else {
-    buf.fill(_fill);
-  }
-  return buf;
-}
-exports.allocUnsafe = function allocUnsafe(size) {
-  if (typeof Buffer.allocUnsafe === 'function') {
-    return Buffer.allocUnsafe(size);
-  }
-  if (typeof size !== 'number') {
-    throw new TypeError('size must be a number');
-  }
-  if (size > MAX_LEN) {
-    throw new RangeError('size is too large');
-  }
-  return new Buffer(size);
-}
-exports.from = function from(value, encodingOrOffset, length) {
-  if (typeof Buffer.from === 'function' && (!global.Uint8Array || Uint8Array.from !== Buffer.from)) {
-    return Buffer.from(value, encodingOrOffset, length);
-  }
-  if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number');
-  }
-  if (typeof value === 'string') {
-    return new Buffer(value, encodingOrOffset);
-  }
-  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
-    var offset = encodingOrOffset;
-    if (arguments.length === 1) {
-      return new Buffer(value);
-    }
-    if (typeof offset === 'undefined') {
-      offset = 0;
-    }
-    var len = length;
-    if (typeof len === 'undefined') {
-      len = value.byteLength - offset;
-    }
-    if (offset >= value.byteLength) {
-      throw new RangeError('\'offset\' is out of bounds');
-    }
-    if (len > value.byteLength - offset) {
-      throw new RangeError('\'length\' is out of bounds');
-    }
-    return new Buffer(value.slice(offset, offset + len));
-  }
-  if (Buffer.isBuffer(value)) {
-    var out = new Buffer(value.length);
-    value.copy(out, 0, 0, value.length);
-    return out;
-  }
-  if (value) {
-    if (Array.isArray(value) || (typeof ArrayBuffer !== 'undefined' && value.buffer instanceof ArrayBuffer) || 'length' in value) {
-      return new Buffer(value);
-    }
-    if (value.type === 'Buffer' && Array.isArray(value.data)) {
-      return new Buffer(value.data);
-    }
-  }
-
-  throw new TypeError('First argument must be a string, Buffer, ' + 'ArrayBuffer, Array, or array-like object.');
-}
-exports.allocUnsafeSlow = function allocUnsafeSlow(size) {
-  if (typeof Buffer.allocUnsafeSlow === 'function') {
-    return Buffer.allocUnsafeSlow(size);
-  }
-  if (typeof size !== 'number') {
-    throw new TypeError('size must be a number');
-  }
-  if (size >= MAX_LEN) {
-    throw new RangeError('size is too large');
-  }
-  return new SlowBuffer(size);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"buffer":44}],44:[function(require,module,exports){
-(function (global){
+(function (Buffer){
 /*!
  * The buffer module from node.js, for the browser.
  *
- * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @author   Feross Aboukhadijeh <https://feross.org>
  * @license  MIT
  */
 /* eslint-disable no-proto */
@@ -6941,80 +8389,73 @@ exports.allocUnsafeSlow = function allocUnsafeSlow(size) {
 
 var base64 = require('base64-js')
 var ieee754 = require('ieee754')
-var isArray = require('isarray')
 
 exports.Buffer = Buffer
 exports.SlowBuffer = SlowBuffer
 exports.INSPECT_MAX_BYTES = 50
 
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
+
 /**
  * If `Buffer.TYPED_ARRAY_SUPPORT`:
  *   === true    Use Uint8Array implementation (fastest)
- *   === false   Use Object implementation (most compatible, even IE6)
+ *   === false   Print warning and recommend using `buffer` v4.x which has an Object
+ *               implementation (most compatible, even IE6)
  *
  * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
  * Opera 11.6+, iOS 4.2+.
  *
- * Due to various browser bugs, sometimes the Object implementation will be used even
- * when the browser supports typed arrays.
- *
- * Note:
- *
- *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
- *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
- *
- *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
- *
- *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
- *     incorrect length in some situations.
-
- * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
- * get the Object implementation, which is slower but behaves correctly.
+ * We report that the browser does not support typed arrays if the are not subclassable
+ * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
+ * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
+ * for __proto__ and has a buggy typed array implementation.
  */
-Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
-  ? global.TYPED_ARRAY_SUPPORT
-  : typedArraySupport()
+Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
 
-/*
- * Export kMaxLength after typed array support is determined.
- */
-exports.kMaxLength = kMaxLength()
+if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
+    typeof console.error === 'function') {
+  console.error(
+    'This browser lacks typed array (Uint8Array) support which is required by ' +
+    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
+  )
+}
 
 function typedArraySupport () {
+  // Can typed array instances can be augmented?
   try {
     var arr = new Uint8Array(1)
-    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
-    return arr.foo() === 42 && // typed array instances can be augmented
-        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
-        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
+    arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
+    return arr.foo() === 42
   } catch (e) {
     return false
   }
 }
 
-function kMaxLength () {
-  return Buffer.TYPED_ARRAY_SUPPORT
-    ? 0x7fffffff
-    : 0x3fffffff
-}
-
-function createBuffer (that, length) {
-  if (kMaxLength() < length) {
-    throw new RangeError('Invalid typed array length')
+Object.defineProperty(Buffer.prototype, 'parent', {
+  enumerable: true,
+  get: function () {
+    if (!Buffer.isBuffer(this)) return undefined
+    return this.buffer
   }
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    that = new Uint8Array(length)
-    that.__proto__ = Buffer.prototype
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    if (that === null) {
-      that = new Buffer(length)
-    }
-    that.length = length
+})
+
+Object.defineProperty(Buffer.prototype, 'offset', {
+  enumerable: true,
+  get: function () {
+    if (!Buffer.isBuffer(this)) return undefined
+    return this.byteOffset
   }
+})
 
-  return that
+function createBuffer (length) {
+  if (length > K_MAX_LENGTH) {
+    throw new RangeError('The value "' + length + '" is invalid for option "size"')
+  }
+  // Return an augmented `Uint8Array` instance
+  var buf = new Uint8Array(length)
+  buf.__proto__ = Buffer.prototype
+  return buf
 }
 
 /**
@@ -7028,44 +8469,77 @@ function createBuffer (that, length) {
  */
 
 function Buffer (arg, encodingOrOffset, length) {
-  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
-    return new Buffer(arg, encodingOrOffset, length)
-  }
-
   // Common case.
   if (typeof arg === 'number') {
     if (typeof encodingOrOffset === 'string') {
-      throw new Error(
-        'If encoding is specified then the first argument must be a string'
+      throw new TypeError(
+        'The "string" argument must be of type string. Received type number'
       )
     }
-    return allocUnsafe(this, arg)
+    return allocUnsafe(arg)
   }
-  return from(this, arg, encodingOrOffset, length)
+  return from(arg, encodingOrOffset, length)
+}
+
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species != null &&
+    Buffer[Symbol.species] === Buffer) {
+  Object.defineProperty(Buffer, Symbol.species, {
+    value: null,
+    configurable: true,
+    enumerable: false,
+    writable: false
+  })
 }
 
 Buffer.poolSize = 8192 // not used by this implementation
 
-// TODO: Legacy, not needed anymore. Remove in next major version.
-Buffer._augment = function (arr) {
-  arr.__proto__ = Buffer.prototype
-  return arr
-}
+function from (value, encodingOrOffset, length) {
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  if (ArrayBuffer.isView(value)) {
+    return fromArrayLike(value)
+  }
+
+  if (value == null) {
+    throw TypeError(
+      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
+      'or Array-like Object. Received type ' + (typeof value)
+    )
+  }
+
+  if (isInstance(value, ArrayBuffer) ||
+      (value && isInstance(value.buffer, ArrayBuffer))) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
 
-function from (that, value, encodingOrOffset, length) {
   if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number')
+    throw new TypeError(
+      'The "value" argument must not be of type number. Received type number'
+    )
   }
 
-  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
-    return fromArrayBuffer(that, value, encodingOrOffset, length)
+  var valueOf = value.valueOf && value.valueOf()
+  if (valueOf != null && valueOf !== value) {
+    return Buffer.from(valueOf, encodingOrOffset, length)
   }
 
-  if (typeof value === 'string') {
-    return fromString(that, value, encodingOrOffset)
+  var b = fromObject(value)
+  if (b) return b
+
+  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
+      typeof value[Symbol.toPrimitive] === 'function') {
+    return Buffer.from(
+      value[Symbol.toPrimitive]('string'), encodingOrOffset, length
+    )
   }
 
-  return fromObject(that, value)
+  throw new TypeError(
+    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
+    'or Array-like Object. Received type ' + (typeof value)
+  )
 }
 
 /**
@@ -7077,44 +8551,36 @@ function from (that, value, encodingOrOffset, length) {
  * Buffer.from(arrayBuffer[, byteOffset[, length]])
  **/
 Buffer.from = function (value, encodingOrOffset, length) {
-  return from(null, value, encodingOrOffset, length)
-}
-
-if (Buffer.TYPED_ARRAY_SUPPORT) {
-  Buffer.prototype.__proto__ = Uint8Array.prototype
-  Buffer.__proto__ = Uint8Array
-  if (typeof Symbol !== 'undefined' && Symbol.species &&
-      Buffer[Symbol.species] === Buffer) {
-    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-    Object.defineProperty(Buffer, Symbol.species, {
-      value: null,
-      configurable: true
-    })
-  }
+  return from(value, encodingOrOffset, length)
 }
 
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
 function assertSize (size) {
   if (typeof size !== 'number') {
-    throw new TypeError('"size" argument must be a number')
+    throw new TypeError('"size" argument must be of type number')
   } else if (size < 0) {
-    throw new RangeError('"size" argument must not be negative')
+    throw new RangeError('The value "' + size + '" is invalid for option "size"')
   }
 }
 
-function alloc (that, size, fill, encoding) {
+function alloc (size, fill, encoding) {
   assertSize(size)
   if (size <= 0) {
-    return createBuffer(that, size)
+    return createBuffer(size)
   }
   if (fill !== undefined) {
     // Only pay attention to encoding if it's a string. This
     // prevents accidentally sending in a number that would
     // be interpretted as a start offset.
     return typeof encoding === 'string'
-      ? createBuffer(that, size).fill(fill, encoding)
-      : createBuffer(that, size).fill(fill)
+      ? createBuffer(size).fill(fill, encoding)
+      : createBuffer(size).fill(fill)
   }
-  return createBuffer(that, size)
+  return createBuffer(size)
 }
 
 /**
@@ -7122,132 +8588,114 @@ function alloc (that, size, fill, encoding) {
  * alloc(size[, fill[, encoding]])
  **/
 Buffer.alloc = function (size, fill, encoding) {
-  return alloc(null, size, fill, encoding)
+  return alloc(size, fill, encoding)
 }
 
-function allocUnsafe (that, size) {
+function allocUnsafe (size) {
   assertSize(size)
-  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-    for (var i = 0; i < size; ++i) {
-      that[i] = 0
-    }
-  }
-  return that
+  return createBuffer(size < 0 ? 0 : checked(size) | 0)
 }
 
 /**
  * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
  * */
 Buffer.allocUnsafe = function (size) {
-  return allocUnsafe(null, size)
+  return allocUnsafe(size)
 }
 /**
  * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
  */
 Buffer.allocUnsafeSlow = function (size) {
-  return allocUnsafe(null, size)
+  return allocUnsafe(size)
 }
 
-function fromString (that, string, encoding) {
+function fromString (string, encoding) {
   if (typeof encoding !== 'string' || encoding === '') {
     encoding = 'utf8'
   }
 
   if (!Buffer.isEncoding(encoding)) {
-    throw new TypeError('"encoding" must be a valid string encoding')
+    throw new TypeError('Unknown encoding: ' + encoding)
   }
 
   var length = byteLength(string, encoding) | 0
-  that = createBuffer(that, length)
+  var buf = createBuffer(length)
 
-  var actual = that.write(string, encoding)
+  var actual = buf.write(string, encoding)
 
   if (actual !== length) {
     // Writing a hex string, for example, that contains invalid characters will
     // cause everything after the first invalid character to be ignored. (e.g.
     // 'abxxcd' will be treated as 'ab')
-    that = that.slice(0, actual)
+    buf = buf.slice(0, actual)
   }
 
-  return that
+  return buf
 }
 
-function fromArrayLike (that, array) {
+function fromArrayLike (array) {
   var length = array.length < 0 ? 0 : checked(array.length) | 0
-  that = createBuffer(that, length)
+  var buf = createBuffer(length)
   for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
+    buf[i] = array[i] & 255
   }
-  return that
+  return buf
 }
 
-function fromArrayBuffer (that, array, byteOffset, length) {
-  array.byteLength // this throws if `array` is not a valid ArrayBuffer
-
+function fromArrayBuffer (array, byteOffset, length) {
   if (byteOffset < 0 || array.byteLength < byteOffset) {
-    throw new RangeError('\'offset\' is out of bounds')
+    throw new RangeError('"offset" is outside of buffer bounds')
   }
 
   if (array.byteLength < byteOffset + (length || 0)) {
-    throw new RangeError('\'length\' is out of bounds')
+    throw new RangeError('"length" is outside of buffer bounds')
   }
 
+  var buf
   if (byteOffset === undefined && length === undefined) {
-    array = new Uint8Array(array)
+    buf = new Uint8Array(array)
   } else if (length === undefined) {
-    array = new Uint8Array(array, byteOffset)
+    buf = new Uint8Array(array, byteOffset)
   } else {
-    array = new Uint8Array(array, byteOffset, length)
+    buf = new Uint8Array(array, byteOffset, length)
   }
 
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    that = array
-    that.__proto__ = Buffer.prototype
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    that = fromArrayLike(that, array)
-  }
-  return that
+  // Return an augmented `Uint8Array` instance
+  buf.__proto__ = Buffer.prototype
+  return buf
 }
 
-function fromObject (that, obj) {
+function fromObject (obj) {
   if (Buffer.isBuffer(obj)) {
     var len = checked(obj.length) | 0
-    that = createBuffer(that, len)
+    var buf = createBuffer(len)
 
-    if (that.length === 0) {
-      return that
+    if (buf.length === 0) {
+      return buf
     }
 
-    obj.copy(that, 0, 0, len)
-    return that
+    obj.copy(buf, 0, 0, len)
+    return buf
   }
 
-  if (obj) {
-    if ((typeof ArrayBuffer !== 'undefined' &&
-        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
-      if (typeof obj.length !== 'number' || isnan(obj.length)) {
-        return createBuffer(that, 0)
-      }
-      return fromArrayLike(that, obj)
-    }
-
-    if (obj.type === 'Buffer' && isArray(obj.data)) {
-      return fromArrayLike(that, obj.data)
+  if (obj.length !== undefined) {
+    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+      return createBuffer(0)
     }
+    return fromArrayLike(obj)
   }
 
-  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+    return fromArrayLike(obj.data)
+  }
 }
 
 function checked (length) {
-  // Note: cannot use `length < kMaxLength()` here because that fails when
+  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
   // length is NaN (which is otherwise coerced to zero.)
-  if (length >= kMaxLength()) {
+  if (length >= K_MAX_LENGTH) {
     throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
+                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
   }
   return length | 0
 }
@@ -7260,12 +8708,17 @@ function SlowBuffer (length) {
 }
 
 Buffer.isBuffer = function isBuffer (b) {
-  return !!(b != null && b._isBuffer)
+  return b != null && b._isBuffer === true &&
+    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
 }
 
 Buffer.compare = function compare (a, b) {
+  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
+  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
   if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
-    throw new TypeError('Arguments must be Buffers')
+    throw new TypeError(
+      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
+    )
   }
 
   if (a === b) return 0
@@ -7306,7 +8759,7 @@ Buffer.isEncoding = function isEncoding (encoding) {
 }
 
 Buffer.concat = function concat (list, length) {
-  if (!isArray(list)) {
+  if (!Array.isArray(list)) {
     throw new TypeError('"list" argument must be an Array of Buffers')
   }
 
@@ -7326,6 +8779,9 @@ Buffer.concat = function concat (list, length) {
   var pos = 0
   for (i = 0; i < list.length; ++i) {
     var buf = list[i]
+    if (isInstance(buf, Uint8Array)) {
+      buf = Buffer.from(buf)
+    }
     if (!Buffer.isBuffer(buf)) {
       throw new TypeError('"list" argument must be an Array of Buffers')
     }
@@ -7339,16 +8795,19 @@ function byteLength (string, encoding) {
   if (Buffer.isBuffer(string)) {
     return string.length
   }
-  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
-      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
+  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
     return string.byteLength
   }
   if (typeof string !== 'string') {
-    string = '' + string
+    throw new TypeError(
+      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
+      'Received type ' + typeof string
+    )
   }
 
   var len = string.length
-  if (len === 0) return 0
+  var mustMatch = (arguments.length > 2 && arguments[2] === true)
+  if (!mustMatch && len === 0) return 0
 
   // Use a for loop to avoid recursion
   var loweredCase = false
@@ -7360,7 +8819,6 @@ function byteLength (string, encoding) {
         return len
       case 'utf8':
       case 'utf-8':
-      case undefined:
         return utf8ToBytes(string).length
       case 'ucs2':
       case 'ucs-2':
@@ -7372,7 +8830,9 @@ function byteLength (string, encoding) {
       case 'base64':
         return base64ToBytes(string).length
       default:
-        if (loweredCase) return utf8ToBytes(string).length // assume utf8
+        if (loweredCase) {
+          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
+        }
         encoding = ('' + encoding).toLowerCase()
         loweredCase = true
     }
@@ -7450,8 +8910,12 @@ function slowToString (encoding, start, end) {
   }
 }
 
-// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
-// Buffer instances.
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
 Buffer.prototype._isBuffer = true
 
 function swap (b, n, m) {
@@ -7498,12 +8962,14 @@ Buffer.prototype.swap64 = function swap64 () {
 }
 
 Buffer.prototype.toString = function toString () {
-  var length = this.length | 0
+  var length = this.length
   if (length === 0) return ''
   if (arguments.length === 0) return utf8Slice(this, 0, length)
   return slowToString.apply(this, arguments)
 }
 
+Buffer.prototype.toLocaleString = Buffer.prototype.toString
+
 Buffer.prototype.equals = function equals (b) {
   if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
   if (this === b) return true
@@ -7513,16 +8979,20 @@ Buffer.prototype.equals = function equals (b) {
 Buffer.prototype.inspect = function inspect () {
   var str = ''
   var max = exports.INSPECT_MAX_BYTES
-  if (this.length > 0) {
-    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
-    if (this.length > max) str += ' ... '
-  }
+  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
+  if (this.length > max) str += ' ... '
   return '<Buffer ' + str + '>'
 }
 
 Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+  if (isInstance(target, Uint8Array)) {
+    target = Buffer.from(target, target.offset, target.byteLength)
+  }
   if (!Buffer.isBuffer(target)) {
-    throw new TypeError('Argument must be a Buffer')
+    throw new TypeError(
+      'The "target" argument must be one of type Buffer or Uint8Array. ' +
+      'Received type ' + (typeof target)
+    )
   }
 
   if (start === undefined) {
@@ -7601,8 +9071,8 @@ function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
   } else if (byteOffset < -0x80000000) {
     byteOffset = -0x80000000
   }
-  byteOffset = +byteOffset  // Coerce to Number.
-  if (isNaN(byteOffset)) {
+  byteOffset = +byteOffset // Coerce to Number.
+  if (numberIsNaN(byteOffset)) {
     // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
     byteOffset = dir ? 0 : (buffer.length - 1)
   }
@@ -7631,8 +9101,7 @@ function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
     return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
   } else if (typeof val === 'number') {
     val = val & 0xFF // Search for a byte value [0-255]
-    if (Buffer.TYPED_ARRAY_SUPPORT &&
-        typeof Uint8Array.prototype.indexOf === 'function') {
+    if (typeof Uint8Array.prototype.indexOf === 'function') {
       if (dir) {
         return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
       } else {
@@ -7725,16 +9194,14 @@ function hexWrite (buf, string, offset, length) {
     }
   }
 
-  // must be an even number of digits
   var strLen = string.length
-  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
 
   if (length > strLen / 2) {
     length = strLen / 2
   }
   for (var i = 0; i < length; ++i) {
     var parsed = parseInt(string.substr(i * 2, 2), 16)
-    if (isNaN(parsed)) return i
+    if (numberIsNaN(parsed)) return i
     buf[offset + i] = parsed
   }
   return i
@@ -7773,15 +9240,14 @@ Buffer.prototype.write = function write (string, offset, length, encoding) {
     offset = 0
   // Buffer#write(string, offset[, length][, encoding])
   } else if (isFinite(offset)) {
-    offset = offset | 0
+    offset = offset >>> 0
     if (isFinite(length)) {
-      length = length | 0
+      length = length >>> 0
       if (encoding === undefined) encoding = 'utf8'
     } else {
       encoding = length
       length = undefined
     }
-  // legacy write(string, encoding, offset, length) - remove in v0.13
   } else {
     throw new Error(
       'Buffer.write(string, encoding, offset[, length]) is no longer supported'
@@ -7857,8 +9323,8 @@ function utf8Slice (buf, start, end) {
     var codePoint = null
     var bytesPerSequence = (firstByte > 0xEF) ? 4
       : (firstByte > 0xDF) ? 3
-      : (firstByte > 0xBF) ? 2
-      : 1
+        : (firstByte > 0xBF) ? 2
+          : 1
 
     if (i + bytesPerSequence <= end) {
       var secondByte, thirdByte, fourthByte, tempCodePoint
@@ -7980,7 +9446,7 @@ function utf16leSlice (buf, start, end) {
   var bytes = buf.slice(start, end)
   var res = ''
   for (var i = 0; i < bytes.length; i += 2) {
-    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
+    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
   }
   return res
 }
@@ -8006,18 +9472,9 @@ Buffer.prototype.slice = function slice (start, end) {
 
   if (end < start) end = start
 
-  var newBuf
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    newBuf = this.subarray(start, end)
-    newBuf.__proto__ = Buffer.prototype
-  } else {
-    var sliceLen = end - start
-    newBuf = new Buffer(sliceLen, undefined)
-    for (var i = 0; i < sliceLen; ++i) {
-      newBuf[i] = this[i + start]
-    }
-  }
-
+  var newBuf = this.subarray(start, end)
+  // Return an augmented `Uint8Array` instance
+  newBuf.__proto__ = Buffer.prototype
   return newBuf
 }
 
@@ -8030,8 +9487,8 @@ function checkOffset (offset, ext, length) {
 }
 
 Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
   if (!noAssert) checkOffset(offset, byteLength, this.length)
 
   var val = this[offset]
@@ -8045,8 +9502,8 @@ Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert)
 }
 
 Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
   if (!noAssert) {
     checkOffset(offset, byteLength, this.length)
   }
@@ -8061,21 +9518,25 @@ Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert)
 }
 
 Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 1, this.length)
   return this[offset]
 }
 
 Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 2, this.length)
   return this[offset] | (this[offset + 1] << 8)
 }
 
 Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 2, this.length)
   return (this[offset] << 8) | this[offset + 1]
 }
 
 Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 4, this.length)
 
   return ((this[offset]) |
@@ -8085,6 +9546,7 @@ Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
 }
 
 Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 4, this.length)
 
   return (this[offset] * 0x1000000) +
@@ -8094,8 +9556,8 @@ Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
 }
 
 Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
   if (!noAssert) checkOffset(offset, byteLength, this.length)
 
   var val = this[offset]
@@ -8112,8 +9574,8 @@ Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
 }
 
 Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
   if (!noAssert) checkOffset(offset, byteLength, this.length)
 
   var i = byteLength
@@ -8130,24 +9592,28 @@ Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
 }
 
 Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 1, this.length)
   if (!(this[offset] & 0x80)) return (this[offset])
   return ((0xff - this[offset] + 1) * -1)
 }
 
 Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 2, this.length)
   var val = this[offset] | (this[offset + 1] << 8)
   return (val & 0x8000) ? val | 0xFFFF0000 : val
 }
 
 Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 2, this.length)
   var val = this[offset + 1] | (this[offset] << 8)
   return (val & 0x8000) ? val | 0xFFFF0000 : val
 }
 
 Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 4, this.length)
 
   return (this[offset]) |
@@ -8157,6 +9623,7 @@ Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
 }
 
 Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 4, this.length)
 
   return (this[offset] << 24) |
@@ -8166,21 +9633,25 @@ Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
 }
 
 Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 4, this.length)
   return ieee754.read(this, offset, true, 23, 4)
 }
 
 Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 4, this.length)
   return ieee754.read(this, offset, false, 23, 4)
 }
 
 Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 8, this.length)
   return ieee754.read(this, offset, true, 52, 8)
 }
 
 Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+  offset = offset >>> 0
   if (!noAssert) checkOffset(offset, 8, this.length)
   return ieee754.read(this, offset, false, 52, 8)
 }
@@ -8193,8 +9664,8 @@ function checkInt (buf, value, offset, ext, max, min) {
 
 Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
   value = +value
-  offset = offset | 0
-  byteLength = byteLength | 0
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
   if (!noAssert) {
     var maxBytes = Math.pow(2, 8 * byteLength) - 1
     checkInt(this, value, offset, byteLength, maxBytes, 0)
@@ -8212,8 +9683,8 @@ Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength,
 
 Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
   value = +value
-  offset = offset | 0
-  byteLength = byteLength | 0
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
   if (!noAssert) {
     var maxBytes = Math.pow(2, 8 * byteLength) - 1
     checkInt(this, value, offset, byteLength, maxBytes, 0)
@@ -8231,89 +9702,57 @@ Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength,
 
 Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
   this[offset] = (value & 0xff)
   return offset + 1
 }
 
-function objectWriteUInt16 (buf, value, offset, littleEndian) {
-  if (value < 0) value = 0xffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
-    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
-      (littleEndian ? i : 1 - i) * 8
-  }
-}
-
 Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value & 0xff)
-    this[offset + 1] = (value >>> 8)
-  } else {
-    objectWriteUInt16(this, value, offset, true)
-  }
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
   return offset + 2
 }
 
 Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 8)
-    this[offset + 1] = (value & 0xff)
-  } else {
-    objectWriteUInt16(this, value, offset, false)
-  }
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
   return offset + 2
 }
 
-function objectWriteUInt32 (buf, value, offset, littleEndian) {
-  if (value < 0) value = 0xffffffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
-    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
-  }
-}
-
 Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset + 3] = (value >>> 24)
-    this[offset + 2] = (value >>> 16)
-    this[offset + 1] = (value >>> 8)
-    this[offset] = (value & 0xff)
-  } else {
-    objectWriteUInt32(this, value, offset, true)
-  }
+  this[offset + 3] = (value >>> 24)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 1] = (value >>> 8)
+  this[offset] = (value & 0xff)
   return offset + 4
 }
 
 Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 24)
-    this[offset + 1] = (value >>> 16)
-    this[offset + 2] = (value >>> 8)
-    this[offset + 3] = (value & 0xff)
-  } else {
-    objectWriteUInt32(this, value, offset, false)
-  }
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
   return offset + 4
 }
 
 Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) {
-    var limit = Math.pow(2, 8 * byteLength - 1)
+    var limit = Math.pow(2, (8 * byteLength) - 1)
 
     checkInt(this, value, offset, byteLength, limit - 1, -limit)
   }
@@ -8334,9 +9773,9 @@ Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, no
 
 Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) {
-    var limit = Math.pow(2, 8 * byteLength - 1)
+    var limit = Math.pow(2, (8 * byteLength) - 1)
 
     checkInt(this, value, offset, byteLength, limit - 1, -limit)
   }
@@ -8357,9 +9796,8 @@ Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, no
 
 Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
   if (value < 0) value = 0xff + value + 1
   this[offset] = (value & 0xff)
   return offset + 1
@@ -8367,58 +9805,42 @@ Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
 
 Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value & 0xff)
-    this[offset + 1] = (value >>> 8)
-  } else {
-    objectWriteUInt16(this, value, offset, true)
-  }
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
   return offset + 2
 }
 
 Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 8)
-    this[offset + 1] = (value & 0xff)
-  } else {
-    objectWriteUInt16(this, value, offset, false)
-  }
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
   return offset + 2
 }
 
 Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value & 0xff)
-    this[offset + 1] = (value >>> 8)
-    this[offset + 2] = (value >>> 16)
-    this[offset + 3] = (value >>> 24)
-  } else {
-    objectWriteUInt32(this, value, offset, true)
-  }
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 3] = (value >>> 24)
   return offset + 4
 }
 
 Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
   value = +value
-  offset = offset | 0
+  offset = offset >>> 0
   if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
   if (value < 0) value = 0xffffffff + value + 1
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 24)
-    this[offset + 1] = (value >>> 16)
-    this[offset + 2] = (value >>> 8)
-    this[offset + 3] = (value & 0xff)
-  } else {
-    objectWriteUInt32(this, value, offset, false)
-  }
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
   return offset + 4
 }
 
@@ -8428,6 +9850,8 @@ function checkIEEE754 (buf, value, offset, ext, max, min) {
 }
 
 function writeFloat (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
   if (!noAssert) {
     checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
   }
@@ -8444,6 +9868,8 @@ Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert)
 }
 
 function writeDouble (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
   if (!noAssert) {
     checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
   }
@@ -8461,6 +9887,7 @@ Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert
 
 // copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
 Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
   if (!start) start = 0
   if (!end && end !== 0) end = this.length
   if (targetStart >= target.length) targetStart = target.length
@@ -8475,7 +9902,7 @@ Buffer.prototype.copy = function copy (target, targetStart, start, end) {
   if (targetStart < 0) {
     throw new RangeError('targetStart out of bounds')
   }
-  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
   if (end < 0) throw new RangeError('sourceEnd out of bounds')
 
   // Are we oob?
@@ -8485,22 +9912,19 @@ Buffer.prototype.copy = function copy (target, targetStart, start, end) {
   }
 
   var len = end - start
-  var i
 
-  if (this === target && start < targetStart && targetStart < end) {
+  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
+    // Use built-in when available, missing from IE11
+    this.copyWithin(targetStart, start, end)
+  } else if (this === target && start < targetStart && targetStart < end) {
     // descending copy from end
-    for (i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start]
-    }
-  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-    // ascending copy from start
-    for (i = 0; i < len; ++i) {
+    for (var i = len - 1; i >= 0; --i) {
       target[i + targetStart] = this[i + start]
     }
   } else {
     Uint8Array.prototype.set.call(
       target,
-      this.subarray(start, start + len),
+      this.subarray(start, end),
       targetStart
     )
   }
@@ -8523,18 +9947,20 @@ Buffer.prototype.fill = function fill (val, start, end, encoding) {
       encoding = end
       end = this.length
     }
-    if (val.length === 1) {
-      var code = val.charCodeAt(0)
-      if (code < 256) {
-        val = code
-      }
-    }
     if (encoding !== undefined && typeof encoding !== 'string') {
       throw new TypeError('encoding must be a string')
     }
     if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
       throw new TypeError('Unknown encoding: ' + encoding)
     }
+    if (val.length === 1) {
+      var code = val.charCodeAt(0)
+      if ((encoding === 'utf8' && code < 128) ||
+          encoding === 'latin1') {
+        // Fast path: If `val` fits into a single byte, use that numeric value.
+        val = code
+      }
+    }
   } else if (typeof val === 'number') {
     val = val & 255
   }
@@ -8561,8 +9987,12 @@ Buffer.prototype.fill = function fill (val, start, end, encoding) {
   } else {
     var bytes = Buffer.isBuffer(val)
       ? val
-      : utf8ToBytes(new Buffer(val, encoding).toString())
+      : Buffer.from(val, encoding)
     var len = bytes.length
+    if (len === 0) {
+      throw new TypeError('The value "' + val +
+        '" is invalid for argument "value"')
+    }
     for (i = 0; i < end - start; ++i) {
       this[i + start] = bytes[i % len]
     }
@@ -8574,11 +10004,13 @@ Buffer.prototype.fill = function fill (val, start, end, encoding) {
 // HELPER FUNCTIONS
 // ================
 
-var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
 
 function base64clean (str) {
+  // Node takes equal signs as end of the Base64 encoding
+  str = str.split('=')[0]
   // Node strips out invalid characters like \n and \t from the string, base64-js does not
-  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
+  str = str.trim().replace(INVALID_BASE64_RE, '')
   // Node converts strings with length < 2 to ''
   if (str.length < 2) return ''
   // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
@@ -8588,11 +10020,6 @@ function base64clean (str) {
   return str
 }
 
-function stringtrim (str) {
-  if (str.trim) return str.trim()
-  return str.replace(/^\s+|\s+$/g, '')
-}
-
 function toHex (n) {
   if (n < 16) return '0' + n.toString(16)
   return n.toString(16)
@@ -8715,12 +10142,21 @@ function blitBuffer (src, dst, offset, length) {
   return i
 }
 
-function isnan (val) {
-  return val !== val // eslint-disable-line no-self-compare
+// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
+// the `instanceof` check but they should be treated as of that type.
+// See: https://github.com/feross/buffer/issues/166
+function isInstance (obj, type) {
+  return obj instanceof type ||
+    (obj != null && obj.constructor != null && obj.constructor.name != null &&
+      obj.constructor.name === type.name)
+}
+function numberIsNaN (obj) {
+  // For IE11 support
+  return obj !== obj // eslint-disable-line no-self-compare
 }
 
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"base64-js":39,"ieee754":50,"isarray":53}],45:[function(require,module,exports){
+}).call(this,require("buffer").Buffer)
+},{"base64-js":39,"buffer":43,"ieee754":55}],44:[function(require,module,exports){
 (function (Buffer){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -8831,3389 +10267,3477 @@ function objectToString(o) {
 }
 
 }).call(this,{"isBuffer":require("../../is-buffer/index.js")})
-},{"../../is-buffer/index.js":52}],46:[function(require,module,exports){
-/* See LICENSE file for terms of use */
+},{"../../is-buffer/index.js":57}],45:[function(require,module,exports){
+(function (process){
+"use strict";
 
-/*
- * Text diff implementation.
- *
- * This library supports the following APIS:
- * JsDiff.diffChars: Character by character diff
- * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
- * JsDiff.diffLines: Line based diff
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+/**
+ * Colors.
+ */
+
+exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
  *
- * JsDiff.diffCss: Diff targeted at CSS content
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+// eslint-disable-next-line complexity
+
+function useColors() {
+  // NB: In an Electron preload script, document will be defined but not fully
+  // initialized. Since we know we're in Chrome, we'll just detect this case
+  // explicitly
+  if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+    return true;
+  } // Internet Explorer and Edge do not support colors.
+
+
+  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+    return false;
+  } // Is webkit? http://stackoverflow.com/a/16459606/376773
+  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+
+
+  return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || // Is firebug? http://stackoverflow.com/a/398120/376773
+  typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || // Is firefox >= v31?
+  // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+  typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || // Double check webkit in userAgent just in case we are in a worker
+  typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
+}
+/**
+ * Colorize log arguments if enabled.
  *
- * These methods are based on the implementation proposed in
- * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
- * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
+ * @api public
  */
-(function(global, undefined) {
-  var objectPrototypeToString = Object.prototype.toString;
 
-  /*istanbul ignore next*/
-  function map(arr, mapper, that) {
-    if (Array.prototype.map) {
-      return Array.prototype.map.call(arr, mapper, that);
-    }
 
-    var other = new Array(arr.length);
+function formatArgs(args) {
+  args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
 
-    for (var i = 0, n = arr.length; i < n; i++) {
-      other[i] = mapper.call(that, arr[i], i, arr);
-    }
-    return other;
-  }
-  function clonePath(path) {
-    return { newPos: path.newPos, components: path.components.slice(0) };
-  }
-  function removeEmpty(array) {
-    var ret = [];
-    for (var i = 0; i < array.length; i++) {
-      if (array[i]) {
-        ret.push(array[i]);
-      }
-    }
-    return ret;
+  if (!this.useColors) {
+    return;
   }
-  function escapeHTML(s) {
-    var n = s;
-    n = n.replace(/&/g, '&amp;');
-    n = n.replace(/</g, '&lt;');
-    n = n.replace(/>/g, '&gt;');
-    n = n.replace(/"/g, '&quot;');
 
-    return n;
-  }
+  var c = 'color: ' + this.color;
+  args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
+  // arguments passed either before or after the %c, so we need to
+  // figure out the correct index to insert the CSS into
 
-  // This function handles the presence of circular references by bailing out when encountering an
-  // object that is already on the "stack" of items being processed.
-  function canonicalize(obj, stack, replacementStack) {
-    stack = stack || [];
-    replacementStack = replacementStack || [];
+  var index = 0;
+  var lastC = 0;
+  args[0].replace(/%[a-zA-Z%]/g, function (match) {
+    if (match === '%%') {
+      return;
+    }
 
-    var i;
+    index++;
 
-    for (i = 0; i < stack.length; i += 1) {
-      if (stack[i] === obj) {
-        return replacementStack[i];
-      }
+    if (match === '%c') {
+      // We only are interested in the *last* %c
+      // (the user may have provided their own)
+      lastC = index;
     }
+  });
+  args.splice(lastC, 0, c);
+}
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
 
-    var canonicalizedObj;
 
-    if ('[object Array]' === objectPrototypeToString.call(obj)) {
-      stack.push(obj);
-      canonicalizedObj = new Array(obj.length);
-      replacementStack.push(canonicalizedObj);
-      for (i = 0; i < obj.length; i += 1) {
-        canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack);
-      }
-      stack.pop();
-      replacementStack.pop();
-    } else if (typeof obj === 'object' && obj !== null) {
-      stack.push(obj);
-      canonicalizedObj = {};
-      replacementStack.push(canonicalizedObj);
-      var sortedKeys = [],
-          key;
-      for (key in obj) {
-        sortedKeys.push(key);
-      }
-      sortedKeys.sort();
-      for (i = 0; i < sortedKeys.length; i += 1) {
-        key = sortedKeys[i];
-        canonicalizedObj[key] = canonicalize(obj[key], stack, replacementStack);
-      }
-      stack.pop();
-      replacementStack.pop();
+function log() {
+  var _console;
+
+  // This hackery is required for IE8/9, where
+  // the `console.log` function doesn't have 'apply'
+  return (typeof console === "undefined" ? "undefined" : _typeof(console)) === 'object' && console.log && (_console = console).log.apply(_console, arguments);
+}
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+
+function save(namespaces) {
+  try {
+    if (namespaces) {
+      exports.storage.setItem('debug', namespaces);
     } else {
-      canonicalizedObj = obj;
+      exports.storage.removeItem('debug');
     }
-    return canonicalizedObj;
+  } catch (error) {// Swallow
+    // XXX (@Qix-) should we be logging these?
   }
+}
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
 
-  function buildValues(components, newString, oldString, useLongestToken) {
-    var componentPos = 0,
-        componentLen = components.length,
-        newPos = 0,
-        oldPos = 0;
 
-    for (; componentPos < componentLen; componentPos++) {
-      var component = components[componentPos];
-      if (!component.removed) {
-        if (!component.added && useLongestToken) {
-          var value = newString.slice(newPos, newPos + component.count);
-          value = map(value, function(value, i) {
-            var oldValue = oldString[oldPos + i];
-            return oldValue.length > value.length ? oldValue : value;
-          });
+function load() {
+  var r;
 
-          component.value = value.join('');
-        } else {
-          component.value = newString.slice(newPos, newPos + component.count).join('');
-        }
-        newPos += component.count;
+  try {
+    r = exports.storage.getItem('debug');
+  } catch (error) {} // Swallow
+  // XXX (@Qix-) should we be logging these?
+  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
 
-        // Common case
-        if (!component.added) {
-          oldPos += component.count;
-        }
-      } else {
-        component.value = oldString.slice(oldPos, oldPos + component.count).join('');
-        oldPos += component.count;
-
-        // Reverse add and remove so removes are output first to match common convention
-        // The diffing algorithm is tied to add then remove output and this is the simplest
-        // route to get the desired output with minimal overhead.
-        if (componentPos && components[componentPos - 1].added) {
-          var tmp = components[componentPos - 1];
-          components[componentPos - 1] = components[componentPos];
-          components[componentPos] = tmp;
-        }
-      }
-    }
 
-    return components;
+  if (!r && typeof process !== 'undefined' && 'env' in process) {
+    r = process.env.DEBUG;
   }
 
-  function Diff(ignoreWhitespace) {
-    this.ignoreWhitespace = ignoreWhitespace;
-  }
-  Diff.prototype = {
-    diff: function(oldString, newString, callback) {
-      var self = this;
+  return r;
+}
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
 
-      function done(value) {
-        if (callback) {
-          setTimeout(function() { callback(undefined, value); }, 0);
-          return true;
-        } else {
-          return value;
-        }
-      }
 
-      // Handle the identity case (this is due to unrolling editLength == 0
-      if (newString === oldString) {
-        return done([{ value: newString }]);
-      }
-      if (!newString) {
-        return done([{ value: oldString, removed: true }]);
-      }
-      if (!oldString) {
-        return done([{ value: newString, added: true }]);
-      }
+function localstorage() {
+  try {
+    // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+    // The Browser also has localStorage in the global context.
+    return localStorage;
+  } catch (error) {// Swallow
+    // XXX (@Qix-) should we be logging these?
+  }
+}
 
-      newString = this.tokenize(newString);
-      oldString = this.tokenize(oldString);
+module.exports = require('./common')(exports);
+var formatters = module.exports.formatters;
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
 
-      var newLen = newString.length, oldLen = oldString.length;
-      var editLength = 1;
-      var maxEditLength = newLen + oldLen;
-      var bestPath = [{ newPos: -1, components: [] }];
+formatters.j = function (v) {
+  try {
+    return JSON.stringify(v);
+  } catch (error) {
+    return '[UnexpectedJSONParseError]: ' + error.message;
+  }
+};
 
-      // Seed editLength = 0, i.e. the content starts with the same values
-      var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
-      if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-        // Identity per the equality and tokenizer
-        return done([{value: newString.join('')}]);
-      }
 
-      // Main worker method. checks all permutations of a given edit length for acceptance.
-      function execEditLength() {
-        for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
-          var basePath;
-          var addPath = bestPath[diagonalPath - 1],
-              removePath = bestPath[diagonalPath + 1],
-              oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
-          if (addPath) {
-            // No one else is going to attempt to use this value, clear it
-            bestPath[diagonalPath - 1] = undefined;
-          }
+}).call(this,require('_process'))
+},{"./common":46,"_process":69}],46:[function(require,module,exports){
+"use strict";
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+function setup(env) {
+  createDebug.debug = createDebug;
+  createDebug.default = createDebug;
+  createDebug.coerce = coerce;
+  createDebug.disable = disable;
+  createDebug.enable = enable;
+  createDebug.enabled = enabled;
+  createDebug.humanize = require('ms');
+  Object.keys(env).forEach(function (key) {
+    createDebug[key] = env[key];
+  });
+  /**
+  * Active `debug` instances.
+  */
 
-          var canAdd = addPath && addPath.newPos + 1 < newLen,
-              canRemove = removePath && 0 <= oldPos && oldPos < oldLen;
-          if (!canAdd && !canRemove) {
-            // If this path is a terminal then prune
-            bestPath[diagonalPath] = undefined;
-            continue;
-          }
+  createDebug.instances = [];
+  /**
+  * The currently active debug mode names, and names to skip.
+  */
 
-          // Select the diagonal that we want to branch from. We select the prior
-          // path whose position in the new string is the farthest from the origin
-          // and does not pass the bounds of the diff graph
-          if (!canAdd || (canRemove && addPath.newPos < removePath.newPos)) {
-            basePath = clonePath(removePath);
-            self.pushComponent(basePath.components, undefined, true);
-          } else {
-            basePath = addPath;   // No need to clone, we've pulled it from the list
-            basePath.newPos++;
-            self.pushComponent(basePath.components, true, undefined);
-          }
+  createDebug.names = [];
+  createDebug.skips = [];
+  /**
+  * Map of special "%n" handling functions, for the debug "format" argument.
+  *
+  * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+  */
 
-          oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);
+  createDebug.formatters = {};
+  /**
+  * Selects a color for a debug namespace
+  * @param {String} namespace The namespace string for the for the debug instance to be colored
+  * @return {Number|String} An ANSI color code for the given namespace
+  * @api private
+  */
 
-          // If we have hit the end of both strings, then we are done
-          if (basePath.newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-            return done(buildValues(basePath.components, newString, oldString, self.useLongestToken));
-          } else {
-            // Otherwise track this path as a potential candidate and continue.
-            bestPath[diagonalPath] = basePath;
-          }
-        }
+  function selectColor(namespace) {
+    var hash = 0;
 
-        editLength++;
-      }
+    for (var i = 0; i < namespace.length; i++) {
+      hash = (hash << 5) - hash + namespace.charCodeAt(i);
+      hash |= 0; // Convert to 32bit integer
+    }
 
-      // Performs the length of edit iteration. Is a bit fugly as this has to support the
-      // sync and async mode which is never fun. Loops over execEditLength until a value
-      // is produced.
-      if (callback) {
-        (function exec() {
-          setTimeout(function() {
-            // This should not happen, but we want to be safe.
-            /*istanbul ignore next */
-            if (editLength > maxEditLength) {
-              return callback();
-            }
+    return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+  }
 
-            if (!execEditLength()) {
-              exec();
-            }
-          }, 0);
-        }());
-      } else {
-        while (editLength <= maxEditLength) {
-          var ret = execEditLength();
-          if (ret) {
-            return ret;
-          }
-        }
-      }
-    },
+  createDebug.selectColor = selectColor;
+  /**
+  * Create a debugger with the given `namespace`.
+  *
+  * @param {String} namespace
+  * @return {Function}
+  * @api public
+  */
 
-    pushComponent: function(components, added, removed) {
-      var last = components[components.length - 1];
-      if (last && last.added === added && last.removed === removed) {
-        // We need to clone here as the component clone operation is just
-        // as shallow array clone
-        components[components.length - 1] = {count: last.count + 1, added: added, removed: removed };
-      } else {
-        components.push({count: 1, added: added, removed: removed });
-      }
-    },
-    extractCommon: function(basePath, newString, oldString, diagonalPath) {
-      var newLen = newString.length,
-          oldLen = oldString.length,
-          newPos = basePath.newPos,
-          oldPos = newPos - diagonalPath,
-
-          commonCount = 0;
-      while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
-        newPos++;
-        oldPos++;
-        commonCount++;
-      }
+  function createDebug(namespace) {
+    var prevTime;
 
-      if (commonCount) {
-        basePath.components.push({count: commonCount});
+    function debug() {
+      // Disabled?
+      if (!debug.enabled) {
+        return;
       }
 
-      basePath.newPos = newPos;
-      return oldPos;
-    },
+      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
 
-    equals: function(left, right) {
-      var reWhitespace = /\S/;
-      return left === right || (this.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right));
-    },
-    tokenize: function(value) {
-      return value.split('');
-    }
-  };
+      var self = debug; // Set `diff` timestamp
 
-  var CharDiff = new Diff();
+      var curr = Number(new Date());
+      var ms = curr - (prevTime || curr);
+      self.diff = ms;
+      self.prev = prevTime;
+      self.curr = curr;
+      prevTime = curr;
+      args[0] = createDebug.coerce(args[0]);
 
-  var WordDiff = new Diff(true);
-  var WordWithSpaceDiff = new Diff();
-  WordDiff.tokenize = WordWithSpaceDiff.tokenize = function(value) {
-    return removeEmpty(value.split(/(\s+|\b)/));
-  };
+      if (typeof args[0] !== 'string') {
+        // Anything else let's inspect with %O
+        args.unshift('%O');
+      } // Apply any `formatters` transformations
 
-  var CssDiff = new Diff(true);
-  CssDiff.tokenize = function(value) {
-    return removeEmpty(value.split(/([{}:;,]|\s+)/));
-  };
 
-  var LineDiff = new Diff();
+      var index = 0;
+      args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
+        // If we encounter an escaped % then don't increase the array index
+        if (match === '%%') {
+          return match;
+        }
 
-  var TrimmedLineDiff = new Diff();
-  TrimmedLineDiff.ignoreTrim = true;
+        index++;
+        var formatter = createDebug.formatters[format];
 
-  LineDiff.tokenize = TrimmedLineDiff.tokenize = function(value) {
-    var retLines = [],
-        lines = value.split(/^/m);
-    for (var i = 0; i < lines.length; i++) {
-      var line = lines[i],
-          lastLine = lines[i - 1],
-          lastLineLastChar = lastLine && lastLine[lastLine.length - 1];
+        if (typeof formatter === 'function') {
+          var val = args[index];
+          match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
 
-      // Merge lines that may contain windows new lines
-      if (line === '\n' && lastLineLastChar === '\r') {
-          retLines[retLines.length - 1] = retLines[retLines.length - 1].slice(0, -1) + '\r\n';
-      } else {
-        if (this.ignoreTrim) {
-          line = line.trim();
-          // add a newline unless this is the last line.
-          if (i < lines.length - 1) {
-            line += '\n';
-          }
+          args.splice(index, 1);
+          index--;
         }
-        retLines.push(line);
-      }
-    }
-
-    return retLines;
-  };
 
-  var PatchDiff = new Diff();
-  PatchDiff.tokenize = function(value) {
-    var ret = [],
-        linesAndNewlines = value.split(/(\n|\r\n)/);
+        return match;
+      }); // Apply env-specific formatting (colors, etc.)
 
-    // Ignore the final empty token that occurs if the string ends with a new line
-    if (!linesAndNewlines[linesAndNewlines.length - 1]) {
-      linesAndNewlines.pop();
+      createDebug.formatArgs.call(self, args);
+      var logFn = self.log || createDebug.log;
+      logFn.apply(self, args);
     }
 
-    // Merge the content and line separators into single tokens
-    for (var i = 0; i < linesAndNewlines.length; i++) {
-      var line = linesAndNewlines[i];
+    debug.namespace = namespace;
+    debug.enabled = createDebug.enabled(namespace);
+    debug.useColors = createDebug.useColors();
+    debug.color = selectColor(namespace);
+    debug.destroy = destroy;
+    debug.extend = extend; // Debug.formatArgs = formatArgs;
+    // debug.rawLog = rawLog;
+    // env-specific initialization logic for debug instances
 
-      if (i % 2) {
-        ret[ret.length - 1] += line;
-      } else {
-        ret.push(line);
-      }
+    if (typeof createDebug.init === 'function') {
+      createDebug.init(debug);
     }
-    return ret;
-  };
 
-  var SentenceDiff = new Diff();
-  SentenceDiff.tokenize = function(value) {
-    return removeEmpty(value.split(/(\S.+?[.!?])(?=\s+|$)/));
-  };
-
-  var JsonDiff = new Diff();
-  // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
-  // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
-  JsonDiff.useLongestToken = true;
-  JsonDiff.tokenize = LineDiff.tokenize;
-  JsonDiff.equals = function(left, right) {
-    return LineDiff.equals(left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
-  };
-
-  var JsDiff = {
-    Diff: Diff,
+    createDebug.instances.push(debug);
+    return debug;
+  }
 
-    diffChars: function(oldStr, newStr, callback) { return CharDiff.diff(oldStr, newStr, callback); },
-    diffWords: function(oldStr, newStr, callback) { return WordDiff.diff(oldStr, newStr, callback); },
-    diffWordsWithSpace: function(oldStr, newStr, callback) { return WordWithSpaceDiff.diff(oldStr, newStr, callback); },
-    diffLines: function(oldStr, newStr, callback) { return LineDiff.diff(oldStr, newStr, callback); },
-    diffTrimmedLines: function(oldStr, newStr, callback) { return TrimmedLineDiff.diff(oldStr, newStr, callback); },
+  function destroy() {
+    var index = createDebug.instances.indexOf(this);
 
-    diffSentences: function(oldStr, newStr, callback) { return SentenceDiff.diff(oldStr, newStr, callback); },
+    if (index !== -1) {
+      createDebug.instances.splice(index, 1);
+      return true;
+    }
 
-    diffCss: function(oldStr, newStr, callback) { return CssDiff.diff(oldStr, newStr, callback); },
-    diffJson: function(oldObj, newObj, callback) {
-      return JsonDiff.diff(
-        typeof oldObj === 'string' ? oldObj : JSON.stringify(canonicalize(oldObj), undefined, '  '),
-        typeof newObj === 'string' ? newObj : JSON.stringify(canonicalize(newObj), undefined, '  '),
-        callback
-      );
-    },
+    return false;
+  }
 
-    createTwoFilesPatch: function(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader) {
-      var ret = [];
+  function extend(namespace, delimiter) {
+    return createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+  }
+  /**
+  * Enables a debug mode by namespaces. This can include modes
+  * separated by a colon and wildcards.
+  *
+  * @param {String} namespaces
+  * @api public
+  */
 
-      if (oldFileName == newFileName) {
-        ret.push('Index: ' + oldFileName);
-      }
-      ret.push('===================================================================');
-      ret.push('--- ' + oldFileName + (typeof oldHeader === 'undefined' ? '' : '\t' + oldHeader));
-      ret.push('+++ ' + newFileName + (typeof newHeader === 'undefined' ? '' : '\t' + newHeader));
 
-      var diff = PatchDiff.diff(oldStr, newStr);
-      diff.push({value: '', lines: []});   // Append an empty value to make cleanup easier
+  function enable(namespaces) {
+    createDebug.save(namespaces);
+    createDebug.names = [];
+    createDebug.skips = [];
+    var i;
+    var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+    var len = split.length;
 
-      // Formats a given set of lines for printing as context lines in a patch
-      function contextLines(lines) {
-        return map(lines, function(entry) { return ' ' + entry; });
+    for (i = 0; i < len; i++) {
+      if (!split[i]) {
+        // ignore empty strings
+        continue;
       }
 
-      // Outputs the no newline at end of file warning if needed
-      function eofNL(curRange, i, current) {
-        var last = diff[diff.length - 2],
-            isLast = i === diff.length - 2,
-            isLastOfType = i === diff.length - 3 && current.added !== last.added;
+      namespaces = split[i].replace(/\*/g, '.*?');
 
-        // Figure out if this is the last line for the given file and missing NL
-        if (!(/\n$/.test(current.value)) && (isLast || isLastOfType)) {
-          curRange.push('\\ No newline at end of file');
-        }
+      if (namespaces[0] === '-') {
+        createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+      } else {
+        createDebug.names.push(new RegExp('^' + namespaces + '$'));
       }
+    }
 
-      var oldRangeStart = 0, newRangeStart = 0, curRange = [],
-          oldLine = 1, newLine = 1;
-      for (var i = 0; i < diff.length; i++) {
-        var current = diff[i],
-            lines = current.lines || current.value.replace(/\n$/, '').split('\n');
-        current.lines = lines;
-
-        if (current.added || current.removed) {
-          // If we have previous context, start with that
-          if (!oldRangeStart) {
-            var prev = diff[i - 1];
-            oldRangeStart = oldLine;
-            newRangeStart = newLine;
-
-            if (prev) {
-              curRange = contextLines(prev.lines.slice(-4));
-              oldRangeStart -= curRange.length;
-              newRangeStart -= curRange.length;
-            }
-          }
+    for (i = 0; i < createDebug.instances.length; i++) {
+      var instance = createDebug.instances[i];
+      instance.enabled = createDebug.enabled(instance.namespace);
+    }
+  }
+  /**
+  * Disable debug output.
+  *
+  * @api public
+  */
 
-          // Output our changes
-          curRange.push.apply(curRange, map(lines, function(entry) {
-            return (current.added ? '+' : '-') + entry;
-          }));
-          eofNL(curRange, i, current);
 
-          // Track the updated file position
-          if (current.added) {
-            newLine += lines.length;
-          } else {
-            oldLine += lines.length;
-          }
-        } else {
-          // Identical context lines. Track line changes
-          if (oldRangeStart) {
-            // Close out any changes that have been output (or join overlapping)
-            if (lines.length <= 8 && i < diff.length - 2) {
-              // Overlapping
-              curRange.push.apply(curRange, contextLines(lines));
-            } else {
-              // end the range and output
-              var contextSize = Math.min(lines.length, 4);
-              ret.push(
-                  '@@ -' + oldRangeStart + ',' + (oldLine - oldRangeStart + contextSize)
-                  + ' +' + newRangeStart + ',' + (newLine - newRangeStart + contextSize)
-                  + ' @@');
-              ret.push.apply(ret, curRange);
-              ret.push.apply(ret, contextLines(lines.slice(0, contextSize)));
-              if (lines.length <= 4) {
-                eofNL(ret, i, current);
-              }
-
-              oldRangeStart = 0;
-              newRangeStart = 0;
-              curRange = [];
-            }
-          }
-          oldLine += lines.length;
-          newLine += lines.length;
-        }
-      }
+  function disable() {
+    createDebug.enable('');
+  }
+  /**
+  * Returns true if the given mode name is enabled, false otherwise.
+  *
+  * @param {String} name
+  * @return {Boolean}
+  * @api public
+  */
 
-      return ret.join('\n') + '\n';
-    },
 
-    createPatch: function(fileName, oldStr, newStr, oldHeader, newHeader) {
-      return JsDiff.createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader);
-    },
+  function enabled(name) {
+    if (name[name.length - 1] === '*') {
+      return true;
+    }
 
-    applyPatch: function(oldStr, uniDiff) {
-      var diffstr = uniDiff.split('\n'),
-          hunks = [],
-          i = 0,
-          remEOFNL = false,
-          addEOFNL = false;
+    var i;
+    var len;
 
-      // Skip to the first change hunk
-      while (i < diffstr.length && !(/^@@/.test(diffstr[i]))) {
-        i++;
+    for (i = 0, len = createDebug.skips.length; i < len; i++) {
+      if (createDebug.skips[i].test(name)) {
+        return false;
       }
+    }
 
-      // Parse the unified diff
-      for (; i < diffstr.length; i++) {
-        if (diffstr[i][0] === '@') {
-          var chnukHeader = diffstr[i].split(/@@ -(\d+),(\d+) \+(\d+),(\d+) @@/);
-          hunks.unshift({
-            start: chnukHeader[3],
-            oldlength: +chnukHeader[2],
-            removed: [],
-            newlength: chnukHeader[4],
-            added: []
-          });
-        } else if (diffstr[i][0] === '+') {
-          hunks[0].added.push(diffstr[i].substr(1));
-        } else if (diffstr[i][0] === '-') {
-          hunks[0].removed.push(diffstr[i].substr(1));
-        } else if (diffstr[i][0] === ' ') {
-          hunks[0].added.push(diffstr[i].substr(1));
-          hunks[0].removed.push(diffstr[i].substr(1));
-        } else if (diffstr[i][0] === '\\') {
-          if (diffstr[i - 1][0] === '+') {
-            remEOFNL = true;
-          } else if (diffstr[i - 1][0] === '-') {
-            addEOFNL = true;
-          }
-        }
+    for (i = 0, len = createDebug.names.length; i < len; i++) {
+      if (createDebug.names[i].test(name)) {
+        return true;
       }
+    }
 
-      // Apply the diff to the input
-      var lines = oldStr.split('\n');
-      for (i = hunks.length - 1; i >= 0; i--) {
-        var hunk = hunks[i];
-        // Sanity check the input string. Bail if we don't match.
-        for (var j = 0; j < hunk.oldlength; j++) {
-          if (lines[hunk.start - 1 + j] !== hunk.removed[j]) {
-            return false;
-          }
-        }
-        Array.prototype.splice.apply(lines, [hunk.start - 1, hunk.oldlength].concat(hunk.added));
-      }
+    return false;
+  }
+  /**
+  * Coerce `val`.
+  *
+  * @param {Mixed} val
+  * @return {Mixed}
+  * @api private
+  */
 
-      // Handle EOFNL insertion/removal
-      if (remEOFNL) {
-        while (!lines[lines.length - 1]) {
-          lines.pop();
-        }
-      } else if (addEOFNL) {
-        lines.push('');
-      }
-      return lines.join('\n');
-    },
 
-    convertChangesToXML: function(changes) {
-      var ret = [];
-      for (var i = 0; i < changes.length; i++) {
-        var change = changes[i];
-        if (change.added) {
-          ret.push('<ins>');
-        } else if (change.removed) {
-          ret.push('<del>');
-        }
+  function coerce(val) {
+    if (val instanceof Error) {
+      return val.stack || val.message;
+    }
 
-        ret.push(escapeHTML(change.value));
+    return val;
+  }
 
-        if (change.added) {
-          ret.push('</ins>');
-        } else if (change.removed) {
-          ret.push('</del>');
-        }
-      }
-      return ret.join('');
-    },
+  createDebug.enable(createDebug.load());
+  return createDebug;
+}
 
-    // See: http://code.google.com/p/google-diff-match-patch/wiki/API
-    convertChangesToDMP: function(changes) {
-      var ret = [],
-          change,
-          operation;
-      for (var i = 0; i < changes.length; i++) {
-        change = changes[i];
-        if (change.added) {
-          operation = 1;
-        } else if (change.removed) {
-          operation = -1;
-        } else {
-          operation = 0;
-        }
+module.exports = setup;
 
-        ret.push([operation, change.value]);
-      }
-      return ret;
-    },
 
-    canonicalize: canonicalize
-  };
+},{"ms":60}],47:[function(require,module,exports){
+'use strict';
 
-  /*istanbul ignore next */
-  /*global module */
-  if (typeof module !== 'undefined' && module.exports) {
-    module.exports = JsDiff;
-  } else if (false) {
-    /*global define */
-    define([], function() { return JsDiff; });
-  } else if (typeof global.JsDiff === 'undefined') {
-    global.JsDiff = JsDiff;
-  }
-}(this));
+var keys = require('object-keys');
+var hasSymbols = typeof Symbol === 'function' && typeof Symbol('foo') === 'symbol';
 
-},{}],47:[function(require,module,exports){
-'use strict';
+var toStr = Object.prototype.toString;
+var concat = Array.prototype.concat;
+var origDefineProperty = Object.defineProperty;
 
-var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
+var isFunction = function (fn) {
+	return typeof fn === 'function' && toStr.call(fn) === '[object Function]';
+};
 
-module.exports = function (str) {
-	if (typeof str !== 'string') {
-		throw new TypeError('Expected a string');
+var arePropertyDescriptorsSupported = function () {
+	var obj = {};
+	try {
+		origDefineProperty(obj, 'x', { enumerable: false, value: obj });
+		// eslint-disable-next-line no-unused-vars, no-restricted-syntax
+		for (var _ in obj) { // jscs:ignore disallowUnusedVariables
+			return false;
+		}
+		return obj.x === obj;
+	} catch (e) { /* this is IE 8. */
+		return false;
 	}
+};
+var supportsDescriptors = origDefineProperty && arePropertyDescriptorsSupported();
 
-	return str.replace(matchOperatorsRe, '\\$&');
+var defineProperty = function (object, name, value, predicate) {
+	if (name in object && (!isFunction(predicate) || !predicate())) {
+		return;
+	}
+	if (supportsDescriptors) {
+		origDefineProperty(object, name, {
+			configurable: true,
+			enumerable: false,
+			value: value,
+			writable: true
+		});
+	} else {
+		object[name] = value;
+	}
 };
 
-},{}],48:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+var defineProperties = function (object, map) {
+	var predicates = arguments.length > 2 ? arguments[2] : {};
+	var props = keys(map);
+	if (hasSymbols) {
+		props = concat.call(props, Object.getOwnPropertySymbols(map));
+	}
+	for (var i = 0; i < props.length; i += 1) {
+		defineProperty(object, props[i], map[props[i]], predicates[props[i]]);
+	}
+};
 
-function EventEmitter() {
-  this._events = this._events || {};
-  this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
+defineProperties.supportsDescriptors = !!supportsDescriptors;
 
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
+module.exports = defineProperties;
 
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
+},{"object-keys":62}],48:[function(require,module,exports){
+/*!
 
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-EventEmitter.defaultMaxListeners = 10;
+ diff v3.5.0
 
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function(n) {
-  if (!isNumber(n) || n < 0 || isNaN(n))
-    throw TypeError('n must be a positive number');
-  this._maxListeners = n;
-  return this;
-};
+Software License Agreement (BSD License)
 
-EventEmitter.prototype.emit = function(type) {
-  var er, handler, len, args, i, listeners;
+Copyright (c) 2009-2015, Kevin Decker <kpdecker@gmail.com>
 
-  if (!this._events)
-    this._events = {};
+All rights reserved.
 
-  // If there is no 'error' event listener then throw.
-  if (type === 'error') {
-    if (!this._events.error ||
-        (isObject(this._events.error) && !this._events.error.length)) {
-      er = arguments[1];
-      if (er instanceof Error) {
-        throw er; // Unhandled 'error' event
-      } else {
-        // At least give some kind of context to the user
-        var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
-        err.context = er;
-        throw err;
-      }
-    }
-  }
+Redistribution and use of this software in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
 
-  handler = this._events[type];
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
 
-  if (isUndefined(handler))
-    return false;
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
 
-  if (isFunction(handler)) {
-    switch (arguments.length) {
-      // fast cases
-      case 1:
-        handler.call(this);
-        break;
-      case 2:
-        handler.call(this, arguments[1]);
-        break;
-      case 3:
-        handler.call(this, arguments[1], arguments[2]);
-        break;
-      // slower
-      default:
-        args = Array.prototype.slice.call(arguments, 1);
-        handler.apply(this, args);
-    }
-  } else if (isObject(handler)) {
-    args = Array.prototype.slice.call(arguments, 1);
-    listeners = handler.slice();
-    len = listeners.length;
-    for (i = 0; i < len; i++)
-      listeners[i].apply(this, args);
-  }
+* Neither the name of Kevin Decker nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission.
 
-  return true;
-};
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+@license
+*/
+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(false)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["JsDiff"] = factory();
+	else
+		root["JsDiff"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
 
-EventEmitter.prototype.addListener = function(type, listener) {
-  var m;
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
 
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
 
-  if (!this._events)
-    this._events = {};
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
 
-  // To avoid recursion in the case that type === "newListener"! Before
-  // adding it to the listeners, first emit "newListener".
-  if (this._events.newListener)
-    this.emit('newListener', type,
-              isFunction(listener.listener) ?
-              listener.listener : listener);
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
 
-  if (!this._events[type])
-    // Optimize the case of one listener. Don't need the extra array object.
-    this._events[type] = listener;
-  else if (isObject(this._events[type]))
-    // If we've already got an array, just append.
-    this._events[type].push(listener);
-  else
-    // Adding the second element, need to change to array.
-    this._events[type] = [this._events[type], listener];
-
-  // Check for listener leak
-  if (isObject(this._events[type]) && !this._events[type].warned) {
-    if (!isUndefined(this._maxListeners)) {
-      m = this._maxListeners;
-    } else {
-      m = EventEmitter.defaultMaxListeners;
-    }
-
-    if (m && m > 0 && this._events[type].length > m) {
-      this._events[type].warned = true;
-      console.error('(node) warning: possible EventEmitter memory ' +
-                    'leak detected. %d listeners added. ' +
-                    'Use emitter.setMaxListeners() to increase limit.',
-                    this._events[type].length);
-      if (typeof console.trace === 'function') {
-        // not supported in IE 10
-        console.trace();
-      }
-    }
-  }
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
 
-  return this;
-};
 
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
 
-EventEmitter.prototype.once = function(type, listener) {
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
 
-  var fired = false;
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
 
-  function g() {
-    this.removeListener(type, g);
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __webpack_require__) {
 
-    if (!fired) {
-      fired = true;
-      listener.apply(this, arguments);
-    }
-  }
+	/*istanbul ignore start*/'use strict';
 
-  g.listener = listener;
-  this.on(type, g);
+	exports.__esModule = true;
+	exports.canonicalize = exports.convertChangesToXML = exports.convertChangesToDMP = exports.merge = exports.parsePatch = exports.applyPatches = exports.applyPatch = exports.createPatch = exports.createTwoFilesPatch = exports.structuredPatch = exports.diffArrays = exports.diffJson = exports.diffCss = exports.diffSentences = exports.diffTrimmedLines = exports.diffLines = exports.diffWordsWithSpace = exports.diffWords = exports.diffChars = exports.Diff = undefined;
 
-  return this;
-};
+	/*istanbul ignore end*/var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-// emits a 'removeListener' event iff the listener was removed
-EventEmitter.prototype.removeListener = function(type, listener) {
-  var list, position, length, i;
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+
+	/*istanbul ignore end*/var /*istanbul ignore start*/_character = __webpack_require__(2) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_word = __webpack_require__(3) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_sentence = __webpack_require__(6) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_css = __webpack_require__(7) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_json = __webpack_require__(8) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_array = __webpack_require__(9) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_apply = __webpack_require__(10) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_merge = __webpack_require__(13) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_create = __webpack_require__(14) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_dmp = __webpack_require__(16) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_xml = __webpack_require__(17) /*istanbul ignore end*/;
+
+	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+	/* See LICENSE file for terms of use */
+
+	/*
+	 * Text diff implementation.
+	 *
+	 * This library supports the following APIS:
+	 * JsDiff.diffChars: Character by character diff
+	 * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
+	 * JsDiff.diffLines: Line based diff
+	 *
+	 * JsDiff.diffCss: Diff targeted at CSS content
+	 *
+	 * These methods are based on the implementation proposed in
+	 * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
+	 * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
+	 */
+	exports. /*istanbul ignore end*/Diff = _base2['default'];
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffChars = _character.diffChars;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWords = _word.diffWords;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = _word.diffWordsWithSpace;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffLines = _line.diffLines;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffTrimmedLines = _line.diffTrimmedLines;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffSentences = _sentence.diffSentences;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffCss = _css.diffCss;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffJson = _json.diffJson;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffArrays = _array.diffArrays;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/structuredPatch = _create.structuredPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = _create.createTwoFilesPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = _create.createPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatch = _apply.applyPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatches = _apply.applyPatches;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/parsePatch = _parse.parsePatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/merge = _merge.merge;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/convertChangesToDMP = _dmp.convertChangesToDMP;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/convertChangesToXML = _xml.convertChangesToXML;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = _json.canonicalize;
+
+
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports) {
+
+	/*istanbul ignore start*/'use strict';
+
+	exports.__esModule = true;
+	exports['default'] = /*istanbul ignore end*/Diff;
+	function Diff() {}
+
+	Diff.prototype = {
+	  /*istanbul ignore start*/ /*istanbul ignore end*/diff: function diff(oldString, newString) {
+	    /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+	    var callback = options.callback;
+	    if (typeof options === 'function') {
+	      callback = options;
+	      options = {};
+	    }
+	    this.options = options;
+
+	    var self = this;
+
+	    function done(value) {
+	      if (callback) {
+	        setTimeout(function () {
+	          callback(undefined, value);
+	        }, 0);
+	        return true;
+	      } else {
+	        return value;
+	      }
+	    }
+
+	    // Allow subclasses to massage the input prior to running
+	    oldString = this.castInput(oldString);
+	    newString = this.castInput(newString);
+
+	    oldString = this.removeEmpty(this.tokenize(oldString));
+	    newString = this.removeEmpty(this.tokenize(newString));
+
+	    var newLen = newString.length,
+	        oldLen = oldString.length;
+	    var editLength = 1;
+	    var maxEditLength = newLen + oldLen;
+	    var bestPath = [{ newPos: -1, components: [] }];
+
+	    // Seed editLength = 0, i.e. the content starts with the same values
+	    var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
+	    if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
+	      // Identity per the equality and tokenizer
+	      return done([{ value: this.join(newString), count: newString.length }]);
+	    }
+
+	    // Main worker method. checks all permutations of a given edit length for acceptance.
+	    function execEditLength() {
+	      for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
+	        var basePath = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
+	        var addPath = bestPath[diagonalPath - 1],
+	            removePath = bestPath[diagonalPath + 1],
+	            _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
+	        if (addPath) {
+	          // No one else is going to attempt to use this value, clear it
+	          bestPath[diagonalPath - 1] = undefined;
+	        }
+
+	        var canAdd = addPath && addPath.newPos + 1 < newLen,
+	            canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
+	        if (!canAdd && !canRemove) {
+	          // If this path is a terminal then prune
+	          bestPath[diagonalPath] = undefined;
+	          continue;
+	        }
+
+	        // Select the diagonal that we want to branch from. We select the prior
+	        // path whose position in the new string is the farthest from the origin
+	        // and does not pass the bounds of the diff graph
+	        if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
+	          basePath = clonePath(removePath);
+	          self.pushComponent(basePath.components, undefined, true);
+	        } else {
+	          basePath = addPath; // No need to clone, we've pulled it from the list
+	          basePath.newPos++;
+	          self.pushComponent(basePath.components, true, undefined);
+	        }
+
+	        _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);
+
+	        // If we have hit the end of both strings, then we are done
+	        if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
+	          return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
+	        } else {
+	          // Otherwise track this path as a potential candidate and continue.
+	          bestPath[diagonalPath] = basePath;
+	        }
+	      }
+
+	      editLength++;
+	    }
+
+	    // Performs the length of edit iteration. Is a bit fugly as this has to support the
+	    // sync and async mode which is never fun. Loops over execEditLength until a value
+	    // is produced.
+	    if (callback) {
+	      (function exec() {
+	        setTimeout(function () {
+	          // This should not happen, but we want to be safe.
+	          /* istanbul ignore next */
+	          if (editLength > maxEditLength) {
+	            return callback();
+	          }
+
+	          if (!execEditLength()) {
+	            exec();
+	          }
+	        }, 0);
+	      })();
+	    } else {
+	      while (editLength <= maxEditLength) {
+	        var ret = execEditLength();
+	        if (ret) {
+	          return ret;
+	        }
+	      }
+	    }
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/pushComponent: function pushComponent(components, added, removed) {
+	    var last = components[components.length - 1];
+	    if (last && last.added === added && last.removed === removed) {
+	      // We need to clone here as the component clone operation is just
+	      // as shallow array clone
+	      components[components.length - 1] = { count: last.count + 1, added: added, removed: removed };
+	    } else {
+	      components.push({ count: 1, added: added, removed: removed });
+	    }
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
+	    var newLen = newString.length,
+	        oldLen = oldString.length,
+	        newPos = basePath.newPos,
+	        oldPos = newPos - diagonalPath,
+	        commonCount = 0;
+	    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
+	      newPos++;
+	      oldPos++;
+	      commonCount++;
+	    }
+
+	    if (commonCount) {
+	      basePath.components.push({ count: commonCount });
+	    }
+
+	    basePath.newPos = newPos;
+	    return oldPos;
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/equals: function equals(left, right) {
+	    if (this.options.comparator) {
+	      return this.options.comparator(left, right);
+	    } else {
+	      return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
+	    }
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/removeEmpty: function removeEmpty(array) {
+	    var ret = [];
+	    for (var i = 0; i < array.length; i++) {
+	      if (array[i]) {
+	        ret.push(array[i]);
+	      }
+	    }
+	    return ret;
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/castInput: function castInput(value) {
+	    return value;
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/tokenize: function tokenize(value) {
+	    return value.split('');
+	  },
+	  /*istanbul ignore start*/ /*istanbul ignore end*/join: function join(chars) {
+	    return chars.join('');
+	  }
+	};
+
+	function buildValues(diff, components, newString, oldString, useLongestToken) {
+	  var componentPos = 0,
+	      componentLen = components.length,
+	      newPos = 0,
+	      oldPos = 0;
+
+	  for (; componentPos < componentLen; componentPos++) {
+	    var component = components[componentPos];
+	    if (!component.removed) {
+	      if (!component.added && useLongestToken) {
+	        var value = newString.slice(newPos, newPos + component.count);
+	        value = value.map(function (value, i) {
+	          var oldValue = oldString[oldPos + i];
+	          return oldValue.length > value.length ? oldValue : value;
+	        });
+
+	        component.value = diff.join(value);
+	      } else {
+	        component.value = diff.join(newString.slice(newPos, newPos + component.count));
+	      }
+	      newPos += component.count;
+
+	      // Common case
+	      if (!component.added) {
+	        oldPos += component.count;
+	      }
+	    } else {
+	      component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
+	      oldPos += component.count;
+
+	      // Reverse add and remove so removes are output first to match common convention
+	      // The diffing algorithm is tied to add then remove output and this is the simplest
+	      // route to get the desired output with minimal overhead.
+	      if (componentPos && components[componentPos - 1].added) {
+	        var tmp = components[componentPos - 1];
+	        components[componentPos - 1] = components[componentPos];
+	        components[componentPos] = tmp;
+	      }
+	    }
+	  }
+
+	  // Special case handle for when one terminal is ignored (i.e. whitespace).
+	  // For this case we merge the terminal into the prior string and drop the change.
+	  // This is only available for string mode.
+	  var lastComponent = components[componentLen - 1];
+	  if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
+	    components[componentLen - 2].value += lastComponent.value;
+	    components.pop();
+	  }
+
+	  return components;
+	}
 
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+	function clonePath(path) {
+	  return { newPos: path.newPos, components: path.components.slice(0) };
+	}
 
-  if (!this._events || !this._events[type])
-    return this;
 
-  list = this._events[type];
-  length = list.length;
-  position = -1;
-
-  if (list === listener ||
-      (isFunction(list.listener) && list.listener === listener)) {
-    delete this._events[type];
-    if (this._events.removeListener)
-      this.emit('removeListener', type, listener);
-
-  } else if (isObject(list)) {
-    for (i = length; i-- > 0;) {
-      if (list[i] === listener ||
-          (list[i].listener && list[i].listener === listener)) {
-        position = i;
-        break;
-      }
-    }
 
-    if (position < 0)
-      return this;
+/***/ }),
+/* 2 */
+/***/ (function(module, exports, __webpack_require__) {
 
-    if (list.length === 1) {
-      list.length = 0;
-      delete this._events[type];
-    } else {
-      list.splice(position, 1);
-    }
+	/*istanbul ignore start*/'use strict';
 
-    if (this._events.removeListener)
-      this.emit('removeListener', type, listener);
-  }
+	exports.__esModule = true;
+	exports.characterDiff = undefined;
+	exports. /*istanbul ignore end*/diffChars = diffChars;
 
-  return this;
-};
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-EventEmitter.prototype.removeAllListeners = function(type) {
-  var key, listeners;
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-  if (!this._events)
-    return this;
+	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
-  // not listening for removeListener, no need to emit
-  if (!this._events.removeListener) {
-    if (arguments.length === 0)
-      this._events = {};
-    else if (this._events[type])
-      delete this._events[type];
-    return this;
-  }
+	/*istanbul ignore end*/var characterDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/characterDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	function diffChars(oldStr, newStr, options) {
+	  return characterDiff.diff(oldStr, newStr, options);
+	}
 
-  // emit removeListener for all listeners on all events
-  if (arguments.length === 0) {
-    for (key in this._events) {
-      if (key === 'removeListener') continue;
-      this.removeAllListeners(key);
-    }
-    this.removeAllListeners('removeListener');
-    this._events = {};
-    return this;
-  }
 
-  listeners = this._events[type];
 
-  if (isFunction(listeners)) {
-    this.removeListener(type, listeners);
-  } else if (listeners) {
-    // LIFO order
-    while (listeners.length)
-      this.removeListener(type, listeners[listeners.length - 1]);
-  }
-  delete this._events[type];
+/***/ }),
+/* 3 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/*istanbul ignore start*/'use strict';
+
+	exports.__esModule = true;
+	exports.wordDiff = undefined;
+	exports. /*istanbul ignore end*/diffWords = diffWords;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = diffWordsWithSpace;
+
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+
+	/*istanbul ignore end*/var /*istanbul ignore start*/_params = __webpack_require__(4) /*istanbul ignore end*/;
+
+	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+	/*istanbul ignore end*/ // Based on https://en.wikipedia.org/wiki/Latin_script_in_Unicode
+	//
+	// Ranges and exceptions:
+	// Latin-1 Supplement, 0080–00FF
+	//  - U+00D7  × Multiplication sign
+	//  - U+00F7  ÷ Division sign
+	// Latin Extended-A, 0100–017F
+	// Latin Extended-B, 0180–024F
+	// IPA Extensions, 0250–02AF
+	// Spacing Modifier Letters, 02B0–02FF
+	//  - U+02C7  ˇ &#711;  Caron
+	//  - U+02D8  ˘ &#728;  Breve
+	//  - U+02D9  ˙ &#729;  Dot Above
+	//  - U+02DA  ˚ &#730;  Ring Above
+	//  - U+02DB  ˛ &#731;  Ogonek
+	//  - U+02DC  ˜ &#732;  Small Tilde
+	//  - U+02DD  ˝ &#733;  Double Acute Accent
+	// Latin Extended Additional, 1E00–1EFF
+	var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
+
+	var reWhitespace = /\S/;
+
+	var wordDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/wordDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	wordDiff.equals = function (left, right) {
+	  if (this.options.ignoreCase) {
+	    left = left.toLowerCase();
+	    right = right.toLowerCase();
+	  }
+	  return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
+	};
+	wordDiff.tokenize = function (value) {
+	  var tokens = value.split(/(\s+|\b)/);
+
+	  // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
+	  for (var i = 0; i < tokens.length - 1; i++) {
+	    // If we have an empty string in the next field and we have only word chars before and after, merge
+	    if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
+	      tokens[i] += tokens[i + 2];
+	      tokens.splice(i + 1, 2);
+	      i--;
+	    }
+	  }
+
+	  return tokens;
+	};
+
+	function diffWords(oldStr, newStr, options) {
+	  options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(options, { ignoreWhitespace: true });
+	  return wordDiff.diff(oldStr, newStr, options);
+	}
 
-  return this;
-};
+	function diffWordsWithSpace(oldStr, newStr, options) {
+	  return wordDiff.diff(oldStr, newStr, options);
+	}
 
-EventEmitter.prototype.listeners = function(type) {
-  var ret;
-  if (!this._events || !this._events[type])
-    ret = [];
-  else if (isFunction(this._events[type]))
-    ret = [this._events[type]];
-  else
-    ret = this._events[type].slice();
-  return ret;
-};
 
-EventEmitter.prototype.listenerCount = function(type) {
-  if (this._events) {
-    var evlistener = this._events[type];
 
-    if (isFunction(evlistener))
-      return 1;
-    else if (evlistener)
-      return evlistener.length;
-  }
-  return 0;
-};
+/***/ }),
+/* 4 */
+/***/ (function(module, exports) {
 
-EventEmitter.listenerCount = function(emitter, type) {
-  return emitter.listenerCount(type);
-};
+	/*istanbul ignore start*/'use strict';
 
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/generateOptions = generateOptions;
+	function generateOptions(options, defaults) {
+	  if (typeof options === 'function') {
+	    defaults.callback = options;
+	  } else if (options) {
+	    for (var name in options) {
+	      /* istanbul ignore else */
+	      if (options.hasOwnProperty(name)) {
+	        defaults[name] = options[name];
+	      }
+	    }
+	  }
+	  return defaults;
+	}
 
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
 
-function isUndefined(arg) {
-  return arg === void 0;
-}
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
 
-},{}],49:[function(require,module,exports){
-(function (process){
-// Growl - Copyright TJ Holowaychuk <tj@vision-media.ca> (MIT Licensed)
+	/*istanbul ignore start*/'use strict';
 
-/**
- * Module dependencies.
- */
+	exports.__esModule = true;
+	exports.lineDiff = undefined;
+	exports. /*istanbul ignore end*/diffLines = diffLines;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffTrimmedLines = diffTrimmedLines;
 
-var exec = require('child_process').exec
-  , fs = require('fs')
-  , path = require('path')
-  , exists = fs.existsSync || path.existsSync
-  , os = require('os')
-  , quote = JSON.stringify
-  , cmd;
-
-function which(name) {
-  var paths = process.env.PATH.split(':');
-  var loc;
-
-  for (var i = 0, len = paths.length; i < len; ++i) {
-    loc = path.join(paths[i], name);
-    if (exists(loc)) return loc;
-  }
-}
-
-switch(os.type()) {
-  case 'Darwin':
-    if (which('terminal-notifier')) {
-      cmd = {
-          type: "Darwin-NotificationCenter"
-        , pkg: "terminal-notifier"
-        , msg: '-message'
-        , title: '-title'
-        , subtitle: '-subtitle'
-        , icon: '-appIcon'
-        , sound:  '-sound'
-        , url: '-open'
-        , priority: {
-              cmd: '-execute'
-            , range: []
-          }
-      };
-    } else {
-      cmd = {
-          type: "Darwin-Growl"
-        , pkg: "growlnotify"
-        , msg: '-m'
-        , sticky: '--sticky'
-        , priority: {
-              cmd: '--priority'
-            , range: [
-                -2
-              , -1
-              , 0
-              , 1
-              , 2
-              , "Very Low"
-              , "Moderate"
-              , "Normal"
-              , "High"
-              , "Emergency"
-            ]
-          }
-      };
-    }
-    break;
-  case 'Linux':
-    if (which('growl')) {
-      cmd = {
-          type: "Linux-Growl"
-        , pkg: "growl"
-        , msg: '-m'
-        , title: '-title'
-        , subtitle: '-subtitle'
-        , host: {
-            cmd: '-H'
-          , hostname: '192.168.33.1'
-        }
-      };
-    } else {
-      cmd = {
-          type: "Linux"
-        , pkg: "notify-send"
-        , msg: ''
-        , sticky: '-t 0'
-        , icon: '-i'
-        , priority: {
-            cmd: '-u'
-          , range: [
-              "low"
-            , "normal"
-            , "critical"
-          ]
-        }
-      };
-    }
-    break;
-  case 'Windows_NT':
-    cmd = {
-        type: "Windows"
-      , pkg: "growlnotify"
-      , msg: ''
-      , sticky: '/s:true'
-      , title: '/t:'
-      , icon: '/i:'
-      , url: '/cu:'
-      , priority: {
-            cmd: '/p:'
-          , range: [
-              -2
-            , -1
-            , 0
-            , 1
-            , 2
-          ]
-        }
-    };
-    break;
-}
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-/**
- * Expose `growl`.
- */
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-exports = module.exports = growl;
+	/*istanbul ignore end*/var /*istanbul ignore start*/_params = __webpack_require__(4) /*istanbul ignore end*/;
 
-/**
- * Node-growl version.
- */
+	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
-exports.version = '1.4.1'
+	/*istanbul ignore end*/var lineDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/lineDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	lineDiff.tokenize = function (value) {
+	  var retLines = [],
+	      linesAndNewlines = value.split(/(\n|\r\n)/);
 
-/**
- * Send growl notification _msg_ with _options_.
- *
- * Options:
- *
- *  - title   Notification title
- *  - sticky  Make the notification stick (defaults to false)
- *  - priority  Specify an int or named key (default is 0)
- *  - name    Application name (defaults to growlnotify)
- *  - sound   Sound efect ( in OSx defined in preferences -> sound -> effects) * works only in OSX > 10.8x
- *  - image
- *    - path to an icon sets --iconpath
- *    - path to an image sets --image
- *    - capitalized word sets --appIcon
- *    - filename uses extname as --icon
- *    - otherwise treated as --icon
- *
- * Examples:
- *
- *   growl('New email')
- *   growl('5 new emails', { title: 'Thunderbird' })
- *   growl('5 new emails', { title: 'Thunderbird', sound: 'Purr' })
- *   growl('Email sent', function(){
- *     // ... notification sent
- *   })
- *
- * @param {string} msg
- * @param {object} options
- * @param {function} fn
- * @api public
- */
+	  // Ignore the final empty token that occurs if the string ends with a new line
+	  if (!linesAndNewlines[linesAndNewlines.length - 1]) {
+	    linesAndNewlines.pop();
+	  }
 
-function growl(msg, options, fn) {
-  var image
-    , args
-    , options = options || {}
-    , fn = fn || function(){};
+	  // Merge the content and line separators into single tokens
+	  for (var i = 0; i < linesAndNewlines.length; i++) {
+	    var line = linesAndNewlines[i];
 
-  if (options.exec) {
-    cmd = {
-        type: "Custom"
-      , pkg: options.exec
-      , range: []
-    };
-  }
+	    if (i % 2 && !this.options.newlineIsToken) {
+	      retLines[retLines.length - 1] += line;
+	    } else {
+	      if (this.options.ignoreWhitespace) {
+	        line = line.trim();
+	      }
+	      retLines.push(line);
+	    }
+	  }
 
-  // noop
-  if (!cmd) return fn(new Error('growl not supported on this platform'));
-  args = [cmd.pkg];
-
-  // image
-  if (image = options.image) {
-    switch(cmd.type) {
-      case 'Darwin-Growl':
-        var flag, ext = path.extname(image).substr(1)
-        flag = flag || ext == 'icns' && 'iconpath'
-        flag = flag || /^[A-Z]/.test(image) && 'appIcon'
-        flag = flag || /^png|gif|jpe?g$/.test(ext) && 'image'
-        flag = flag || ext && (image = ext) && 'icon'
-        flag = flag || 'icon'
-        args.push('--' + flag, quote(image))
-        break;
-      case 'Darwin-NotificationCenter':
-        args.push(cmd.icon, quote(image));
-        break;
-      case 'Linux':
-        args.push(cmd.icon, quote(image));
-        // libnotify defaults to sticky, set a hint for transient notifications
-        if (!options.sticky) args.push('--hint=int:transient:1');
-        break;
-      case 'Windows':
-        args.push(cmd.icon + quote(image));
-        break;
-    }
-  }
+	  return retLines;
+	};
 
-  // sticky
-  if (options.sticky) args.push(cmd.sticky);
+	function diffLines(oldStr, newStr, callback) {
+	  return lineDiff.diff(oldStr, newStr, callback);
+	}
+	function diffTrimmedLines(oldStr, newStr, callback) {
+	  var options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(callback, { ignoreWhitespace: true });
+	  return lineDiff.diff(oldStr, newStr, options);
+	}
 
-  // priority
-  if (options.priority) {
-    var priority = options.priority + '';
-    var checkindexOf = cmd.priority.range.indexOf(priority);
-    if (~cmd.priority.range.indexOf(priority)) {
-      args.push(cmd.priority, options.priority);
-    }
-  }
 
-  //sound
-  if(options.sound && cmd.type === 'Darwin-NotificationCenter'){
-    args.push(cmd.sound, options.sound)
-  }
 
-  // name
-  if (options.name && cmd.type === "Darwin-Growl") {
-    args.push('--name', options.name);
-  }
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __webpack_require__) {
 
-  switch(cmd.type) {
-    case 'Darwin-Growl':
-      args.push(cmd.msg);
-      args.push(quote(msg).replace(/\\n/g, '\n'));
-      if (options.title) args.push(quote(options.title));
-      break;
-    case 'Darwin-NotificationCenter':
-      args.push(cmd.msg);
-      var stringifiedMsg = quote(msg);
-      var escapedMsg = stringifiedMsg.replace(/\\n/g, '\n');
-      args.push(escapedMsg);
-      if (options.title) {
-        args.push(cmd.title);
-        args.push(quote(options.title));
-      }
-      if (options.subtitle) {
-        args.push(cmd.subtitle);
-        args.push(quote(options.subtitle));
-      }
-      if (options.url) {
-        args.push(cmd.url);
-        args.push(quote(options.url));
-      }
-      break;
-    case 'Linux-Growl':
-      args.push(cmd.msg);
-      args.push(quote(msg).replace(/\\n/g, '\n'));
-      if (options.title) args.push(quote(options.title));
-      if (cmd.host) {
-        args.push(cmd.host.cmd, cmd.host.hostname)
-      }
-      break;
-    case 'Linux':
-      if (options.title) {
-        args.push(quote(options.title));
-        args.push(cmd.msg);
-        args.push(quote(msg).replace(/\\n/g, '\n'));
-      } else {
-        args.push(quote(msg).replace(/\\n/g, '\n'));
-      }
-      break;
-    case 'Windows':
-      args.push(quote(msg).replace(/\\n/g, '\n'));
-      if (options.title) args.push(cmd.title + quote(options.title));
-      if (options.url) args.push(cmd.url + quote(options.url));
-      break;
-    case 'Custom':
-      args[0] = (function(origCommand) {
-        var message = options.title
-          ? options.title + ': ' + msg
-          : msg;
-        var command = origCommand.replace(/(^|[^%])%s/g, '$1' + quote(message));
-        if (command === origCommand) args.push(quote(message));
-        return command;
-      })(args[0]);
-      break;
-  }
+	/*istanbul ignore start*/'use strict';
 
-  // execute
-  exec(args.join(' '), fn);
-};
+	exports.__esModule = true;
+	exports.sentenceDiff = undefined;
+	exports. /*istanbul ignore end*/diffSentences = diffSentences;
 
-}).call(this,require('_process'))
-},{"_process":67,"child_process":42,"fs":42,"os":65,"path":42}],50:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
-  var e, m
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var nBits = -7
-  var i = isLE ? (nBytes - 1) : 0
-  var d = isLE ? -1 : 1
-  var s = buffer[offset + i]
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-  i += d
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-  e = s & ((1 << (-nBits)) - 1)
-  s >>= (-nBits)
-  nBits += eLen
-  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
-  m = e & ((1 << (-nBits)) - 1)
-  e >>= (-nBits)
-  nBits += mLen
-  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+	/*istanbul ignore end*/var sentenceDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/sentenceDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	sentenceDiff.tokenize = function (value) {
+	  return value.split(/(\S.+?[.!?])(?=\s+|$)/);
+	};
 
-  if (e === 0) {
-    e = 1 - eBias
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity)
-  } else {
-    m = m + Math.pow(2, mLen)
-    e = e - eBias
-  }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
+	function diffSentences(oldStr, newStr, callback) {
+	  return sentenceDiff.diff(oldStr, newStr, callback);
+	}
 
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
-  var e, m, c
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
-  var i = isLE ? 0 : (nBytes - 1)
-  var d = isLE ? 1 : -1
-  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
 
-  value = Math.abs(value)
 
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0
-    e = eMax
-  } else {
-    e = Math.floor(Math.log(value) / Math.LN2)
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--
-      c *= 2
-    }
-    if (e + eBias >= 1) {
-      value += rt / c
-    } else {
-      value += rt * Math.pow(2, 1 - eBias)
-    }
-    if (value * c >= 2) {
-      e++
-      c /= 2
-    }
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
 
-    if (e + eBias >= eMax) {
-      m = 0
-      e = eMax
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * Math.pow(2, mLen)
-      e = e + eBias
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
-      e = 0
-    }
-  }
+	/*istanbul ignore start*/'use strict';
 
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+	exports.__esModule = true;
+	exports.cssDiff = undefined;
+	exports. /*istanbul ignore end*/diffCss = diffCss;
 
-  e = (e << mLen) | m
-  eLen += mLen
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-  buffer[offset + i - d] |= s * 128
-}
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-},{}],51:[function(require,module,exports){
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
-      }
-    });
-  };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
-  }
-}
+	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
-},{}],52:[function(require,module,exports){
-/*!
- * Determine if an object is a Buffer
- *
- * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
- * @license  MIT
- */
+	/*istanbul ignore end*/var cssDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/cssDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	cssDiff.tokenize = function (value) {
+	  return value.split(/([{}:;,]|\s+)/);
+	};
 
-// The _isBuffer check is for Safari 5-7 support, because it's missing
-// Object.prototype.constructor. Remove this eventually
-module.exports = function (obj) {
-  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
-}
+	function diffCss(oldStr, newStr, callback) {
+	  return cssDiff.diff(oldStr, newStr, callback);
+	}
 
-function isBuffer (obj) {
-  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-}
 
-// For Node v0.10 support. Remove this eventually.
-function isSlowBuffer (obj) {
-  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
-}
 
-},{}],53:[function(require,module,exports){
-var toString = {}.toString;
+/***/ }),
+/* 8 */
+/***/ (function(module, exports, __webpack_require__) {
 
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
+	/*istanbul ignore start*/'use strict';
 
-},{}],54:[function(require,module,exports){
-(function (global){
-/*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */
-;(function () {
-  // Detect the `define` function exposed by asynchronous module loaders. The
-  // strict `define` check is necessary for compatibility with `r.js`.
-  var isLoader = false;
-
-  // A set of types used to distinguish objects from primitives.
-  var objectTypes = {
-    "function": true,
-    "object": true
-  };
+	exports.__esModule = true;
+	exports.jsonDiff = undefined;
 
-  // Detect the `exports` object exposed by CommonJS implementations.
-  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
-
-  // Use the `global` object exposed by Node (including Browserify via
-  // `insert-module-globals`), Narwhal, and Ringo as the default context,
-  // and the `window` object in browsers. Rhino exports a `global` function
-  // instead.
-  var root = objectTypes[typeof window] && window || this,
-      freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global;
-
-  if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) {
-    root = freeGlobal;
-  }
-
-  // Public: Initializes JSON 3 using the given `context` object, attaching the
-  // `stringify` and `parse` functions to the specified `exports` object.
-  function runInContext(context, exports) {
-    context || (context = root["Object"]());
-    exports || (exports = root["Object"]());
-
-    // Native constructor aliases.
-    var Number = context["Number"] || root["Number"],
-        String = context["String"] || root["String"],
-        Object = context["Object"] || root["Object"],
-        Date = context["Date"] || root["Date"],
-        SyntaxError = context["SyntaxError"] || root["SyntaxError"],
-        TypeError = context["TypeError"] || root["TypeError"],
-        Math = context["Math"] || root["Math"],
-        nativeJSON = context["JSON"] || root["JSON"];
-
-    // Delegate to the native `stringify` and `parse` implementations.
-    if (typeof nativeJSON == "object" && nativeJSON) {
-      exports.stringify = nativeJSON.stringify;
-      exports.parse = nativeJSON.parse;
-    }
-
-    // Convenience aliases.
-    var objectProto = Object.prototype,
-        getClass = objectProto.toString,
-        isProperty, forEach, undef;
-
-    // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
-    var isExtended = new Date(-3509827334573292);
-    try {
-      // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
-      // results for certain dates in Opera >= 10.53.
-      isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
-        // Safari < 2.0.2 stores the internal millisecond time value correctly,
-        // but clips the values returned by the date methods to the range of
-        // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
-        isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
-    } catch (exception) {}
-
-    // Internal: Determines whether the native `JSON.stringify` and `parse`
-    // implementations are spec-compliant. Based on work by Ken Snyder.
-    function has(name) {
-      if (has[name] !== undef) {
-        // Return cached feature test result.
-        return has[name];
-      }
-      var isSupported;
-      if (name == "bug-string-char-index") {
-        // IE <= 7 doesn't support accessing string characters using square
-        // bracket notation. IE 8 only supports this for primitives.
-        isSupported = "a"[0] != "a";
-      } else if (name == "json") {
-        // Indicates whether both `JSON.stringify` and `JSON.parse` are
-        // supported.
-        isSupported = has("json-stringify") && has("json-parse");
-      } else {
-        var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
-        // Test `JSON.stringify`.
-        if (name == "json-stringify") {
-          var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended;
-          if (stringifySupported) {
-            // A test function object with a custom `toJSON` method.
-            (value = function () {
-              return 1;
-            }).toJSON = value;
-            try {
-              stringifySupported =
-                // Firefox 3.1b1 and b2 serialize string, number, and boolean
-                // primitives as object literals.
-                stringify(0) === "0" &&
-                // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
-                // literals.
-                stringify(new Number()) === "0" &&
-                stringify(new String()) == '""' &&
-                // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
-                // does not define a canonical JSON representation (this applies to
-                // objects with `toJSON` properties as well, *unless* they are nested
-                // within an object or array).
-                stringify(getClass) === undef &&
-                // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
-                // FF 3.1b3 pass this test.
-                stringify(undef) === undef &&
-                // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
-                // respectively, if the value is omitted entirely.
-                stringify() === undef &&
-                // FF 3.1b1, 2 throw an error if the given value is not a number,
-                // string, array, object, Boolean, or `null` literal. This applies to
-                // objects with custom `toJSON` methods as well, unless they are nested
-                // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
-                // methods entirely.
-                stringify(value) === "1" &&
-                stringify([value]) == "[1]" &&
-                // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
-                // `"[null]"`.
-                stringify([undef]) == "[null]" &&
-                // YUI 3.0.0b1 fails to serialize `null` literals.
-                stringify(null) == "null" &&
-                // FF 3.1b1, 2 halts serialization if an array contains a function:
-                // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
-                // elides non-JSON values from objects and arrays, unless they
-                // define custom `toJSON` methods.
-                stringify([undef, getClass, null]) == "[null,null,null]" &&
-                // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
-                // where character escape codes are expected (e.g., `\b` => `\u0008`).
-                stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
-                // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
-                stringify(null, value) === "1" &&
-                stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
-                // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
-                // serialize extended years.
-                stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
-                // The milliseconds are optional in ES 5, but required in 5.1.
-                stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
-                // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
-                // four-digit years instead of six-digit years. Credits: @Yaffle.
-                stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
-                // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
-                // values less than 1000. Credits: @Yaffle.
-                stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
-            } catch (exception) {
-              stringifySupported = false;
-            }
-          }
-          isSupported = stringifySupported;
-        }
-        // Test `JSON.parse`.
-        if (name == "json-parse") {
-          var parse = exports.parse;
-          if (typeof parse == "function") {
-            try {
-              // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
-              // Conforming implementations should also coerce the initial argument to
-              // a string prior to parsing.
-              if (parse("0") === 0 && !parse(false)) {
-                // Simple parsing test.
-                value = parse(serialized);
-                var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
-                if (parseSupported) {
-                  try {
-                    // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
-                    parseSupported = !parse('"\t"');
-                  } catch (exception) {}
-                  if (parseSupported) {
-                    try {
-                      // FF 4.0 and 4.0.1 allow leading `+` signs and leading
-                      // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
-                      // certain octal literals.
-                      parseSupported = parse("01") !== 1;
-                    } catch (exception) {}
-                  }
-                  if (parseSupported) {
-                    try {
-                      // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
-                      // points. These environments, along with FF 3.1b1 and 2,
-                      // also allow trailing commas in JSON objects and arrays.
-                      parseSupported = parse("1.") !== 1;
-                    } catch (exception) {}
-                  }
-                }
-              }
-            } catch (exception) {
-              parseSupported = false;
-            }
-          }
-          isSupported = parseSupported;
-        }
-      }
-      return has[name] = !!isSupported;
-    }
-
-    if (!has("json")) {
-      // Common `[[Class]]` name aliases.
-      var functionClass = "[object Function]",
-          dateClass = "[object Date]",
-          numberClass = "[object Number]",
-          stringClass = "[object String]",
-          arrayClass = "[object Array]",
-          booleanClass = "[object Boolean]";
-
-      // Detect incomplete support for accessing string characters by index.
-      var charIndexBuggy = has("bug-string-char-index");
-
-      // Define additional utility methods if the `Date` methods are buggy.
-      if (!isExtended) {
-        var floor = Math.floor;
-        // A mapping between the months of the year and the number of days between
-        // January 1st and the first of the respective month.
-        var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
-        // Internal: Calculates the number of days between the Unix epoch and the
-        // first day of the given month.
-        var getDay = function (year, month) {
-          return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
-        };
-      }
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
 
-      // Internal: Determines if a property is a direct property of the given
-      // object. Delegates to the native `Object#hasOwnProperty` method.
-      if (!(isProperty = objectProto.hasOwnProperty)) {
-        isProperty = function (property) {
-          var members = {}, constructor;
-          if ((members.__proto__ = null, members.__proto__ = {
-            // The *proto* property cannot be set multiple times in recent
-            // versions of Firefox and SeaMonkey.
-            "toString": 1
-          }, members).toString != getClass) {
-            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
-            // supports the mutable *proto* property.
-            isProperty = function (property) {
-              // Capture and break the object's prototype chain (see section 8.6.2
-              // of the ES 5.1 spec). The parenthesized expression prevents an
-              // unsafe transformation by the Closure Compiler.
-              var original = this.__proto__, result = property in (this.__proto__ = null, this);
-              // Restore the original prototype chain.
-              this.__proto__ = original;
-              return result;
-            };
-          } else {
-            // Capture a reference to the top-level `Object` constructor.
-            constructor = members.constructor;
-            // Use the `constructor` property to simulate `Object#hasOwnProperty` in
-            // other environments.
-            isProperty = function (property) {
-              var parent = (this.constructor || constructor).prototype;
-              return property in this && !(property in parent && this[property] === parent[property]);
-            };
-          }
-          members = null;
-          return isProperty.call(this, property);
-        };
-      }
+	exports. /*istanbul ignore end*/diffJson = diffJson;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = canonicalize;
 
-      // Internal: Normalizes the `for...in` iteration algorithm across
-      // environments. Each enumerated key is yielded to a `callback` function.
-      forEach = function (object, callback) {
-        var size = 0, Properties, members, property;
-
-        // Tests for bugs in the current environment's `for...in` algorithm. The
-        // `valueOf` property inherits the non-enumerable flag from
-        // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
-        (Properties = function () {
-          this.valueOf = 0;
-        }).prototype.valueOf = 0;
-
-        // Iterate over a new instance of the `Properties` class.
-        members = new Properties();
-        for (property in members) {
-          // Ignore all properties inherited from `Object.prototype`.
-          if (isProperty.call(members, property)) {
-            size++;
-          }
-        }
-        Properties = members = null;
-
-        // Normalize the iteration algorithm.
-        if (!size) {
-          // A list of non-enumerable properties inherited from `Object.prototype`.
-          members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
-          // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
-          // properties.
-          forEach = function (object, callback) {
-            var isFunction = getClass.call(object) == functionClass, property, length;
-            var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;
-            for (property in object) {
-              // Gecko <= 1.0 enumerates the `prototype` property of functions under
-              // certain conditions; IE does not.
-              if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
-                callback(property);
-              }
-            }
-            // Manually invoke the callback for each non-enumerable property.
-            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
-          };
-        } else if (size == 2) {
-          // Safari <= 2.0.4 enumerates shadowed properties twice.
-          forEach = function (object, callback) {
-            // Create a set of iterated properties.
-            var members = {}, isFunction = getClass.call(object) == functionClass, property;
-            for (property in object) {
-              // Store each property name to prevent double enumeration. The
-              // `prototype` property of functions is not enumerated due to cross-
-              // environment inconsistencies.
-              if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
-                callback(property);
-              }
-            }
-          };
-        } else {
-          // No bugs detected; use the standard `for...in` algorithm.
-          forEach = function (object, callback) {
-            var isFunction = getClass.call(object) == functionClass, property, isConstructor;
-            for (property in object) {
-              if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
-                callback(property);
-              }
-            }
-            // Manually invoke the callback for the `constructor` property due to
-            // cross-environment inconsistencies.
-            if (isConstructor || isProperty.call(object, (property = "constructor"))) {
-              callback(property);
-            }
-          };
-        }
-        return forEach(object, callback);
-      };
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-      // Public: Serializes a JavaScript `value` as a JSON string. The optional
-      // `filter` argument may specify either a function that alters how object and
-      // array members are serialized, or an array of strings and numbers that
-      // indicates which properties should be serialized. The optional `width`
-      // argument may be either a string or number that specifies the indentation
-      // level of the output.
-      if (!has("json-stringify")) {
-        // Internal: A map of control characters and their escaped equivalents.
-        var Escapes = {
-          92: "\\\\",
-          34: '\\"',
-          8: "\\b",
-          12: "\\f",
-          10: "\\n",
-          13: "\\r",
-          9: "\\t"
-        };
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-        // Internal: Converts `value` into a zero-padded string such that its
-        // length is at least equal to `width`. The `width` must be <= 6.
-        var leadingZeroes = "000000";
-        var toPaddedString = function (width, value) {
-          // The `|| 0` expression is necessary to work around a bug in
-          // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
-          return (leadingZeroes + (value || 0)).slice(-width);
-        };
+	/*istanbul ignore end*/var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;
 
-        // Internal: Double-quotes a string `value`, replacing all ASCII control
-        // characters (characters with code unit values between 0 and 31) with
-        // their escaped equivalents. This is an implementation of the
-        // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
-        var unicodePrefix = "\\u00";
-        var quote = function (value) {
-          var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;
-          var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value);
-          for (; index < length; index++) {
-            var charCode = value.charCodeAt(index);
-            // If the character is a control character, append its Unicode or
-            // shorthand escape sequence; otherwise, append the character as-is.
-            switch (charCode) {
-              case 8: case 9: case 10: case 12: case 13: case 34: case 92:
-                result += Escapes[charCode];
-                break;
-              default:
-                if (charCode < 32) {
-                  result += unicodePrefix + toPaddedString(2, charCode.toString(16));
-                  break;
-                }
-                result += useCharIndex ? symbols[index] : value.charAt(index);
-            }
-          }
-          return result + '"';
-        };
+	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
-        // Internal: Recursively serializes an object. Implements the
-        // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
-        var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
-          var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
-          try {
-            // Necessary for host object support.
-            value = object[property];
-          } catch (exception) {}
-          if (typeof value == "object" && value) {
-            className = getClass.call(value);
-            if (className == dateClass && !isProperty.call(value, "toJSON")) {
-              if (value > -1 / 0 && value < 1 / 0) {
-                // Dates are serialized according to the `Date#toJSON` method
-                // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
-                // for the ISO 8601 date time string format.
-                if (getDay) {
-                  // Manually compute the year, month, date, hours, minutes,
-                  // seconds, and milliseconds if the `getUTC*` methods are
-                  // buggy. Adapted from @Yaffle's `date-shim` project.
-                  date = floor(value / 864e5);
-                  for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
-                  for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
-                  date = 1 + date - getDay(year, month);
-                  // The `time` value specifies the time within the day (see ES
-                  // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
-                  // to compute `A modulo B`, as the `%` operator does not
-                  // correspond to the `modulo` operation for negative numbers.
-                  time = (value % 864e5 + 864e5) % 864e5;
-                  // The hours, minutes, seconds, and milliseconds are obtained by
-                  // decomposing the time within the day. See section 15.9.1.10.
-                  hours = floor(time / 36e5) % 24;
-                  minutes = floor(time / 6e4) % 60;
-                  seconds = floor(time / 1e3) % 60;
-                  milliseconds = time % 1e3;
-                } else {
-                  year = value.getUTCFullYear();
-                  month = value.getUTCMonth();
-                  date = value.getUTCDate();
-                  hours = value.getUTCHours();
-                  minutes = value.getUTCMinutes();
-                  seconds = value.getUTCSeconds();
-                  milliseconds = value.getUTCMilliseconds();
-                }
-                // Serialize extended years correctly.
-                value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
-                  "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
-                  // Months, dates, hours, minutes, and seconds should have two
-                  // digits; milliseconds should have three.
-                  "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
-                  // Milliseconds are optional in ES 5.0, but required in 5.1.
-                  "." + toPaddedString(3, milliseconds) + "Z";
-              } else {
-                value = null;
-              }
-            } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
-              // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
-              // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
-              // ignores all `toJSON` methods on these objects unless they are
-              // defined directly on an instance.
-              value = value.toJSON(property);
-            }
-          }
-          if (callback) {
-            // If a replacement function was provided, call it to obtain the value
-            // for serialization.
-            value = callback.call(object, property, value);
-          }
-          if (value === null) {
-            return "null";
-          }
-          className = getClass.call(value);
-          if (className == booleanClass) {
-            // Booleans are represented literally.
-            return "" + value;
-          } else if (className == numberClass) {
-            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
-            // `"null"`.
-            return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
-          } else if (className == stringClass) {
-            // Strings are double-quoted and escaped.
-            return quote("" + value);
-          }
-          // Recursively serialize objects and arrays.
-          if (typeof value == "object") {
-            // Check for cyclic structures. This is a linear search; performance
-            // is inversely proportional to the number of unique nested objects.
-            for (length = stack.length; length--;) {
-              if (stack[length] === value) {
-                // Cyclic structures cannot be serialized by `JSON.stringify`.
-                throw TypeError();
-              }
-            }
-            // Add the object to the stack of traversed objects.
-            stack.push(value);
-            results = [];
-            // Save the current indentation level and indent one additional level.
-            prefix = indentation;
-            indentation += whitespace;
-            if (className == arrayClass) {
-              // Recursively serialize array elements.
-              for (index = 0, length = value.length; index < length; index++) {
-                element = serialize(index, value, callback, properties, whitespace, indentation, stack);
-                results.push(element === undef ? "null" : element);
-              }
-              result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
-            } else {
-              // Recursively serialize object members. Members are selected from
-              // either a user-specified list of property names, or the object
-              // itself.
-              forEach(properties || value, function (property) {
-                var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
-                if (element !== undef) {
-                  // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
-                  // is not the empty string, let `member` {quote(property) + ":"}
-                  // be the concatenation of `member` and the `space` character."
-                  // The "`space` character" refers to the literal space
-                  // character, not the `space` {width} argument provided to
-                  // `JSON.stringify`.
-                  results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
-                }
-              });
-              result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
-            }
-            // Remove the object from the traversed object stack.
-            stack.pop();
-            return result;
-          }
-        };
+	/*istanbul ignore end*/var objectPrototypeToString = Object.prototype.toString;
 
-        // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
-        exports.stringify = function (source, filter, width) {
-          var whitespace, callback, properties, className;
-          if (objectTypes[typeof filter] && filter) {
-            if ((className = getClass.call(filter)) == functionClass) {
-              callback = filter;
-            } else if (className == arrayClass) {
-              // Convert the property names array into a makeshift set.
-              properties = {};
-              for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
-            }
-          }
-          if (width) {
-            if ((className = getClass.call(width)) == numberClass) {
-              // Convert the `width` to an integer and create a string containing
-              // `width` number of space characters.
-              if ((width -= width % 1) > 0) {
-                for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
-              }
-            } else if (className == stringClass) {
-              whitespace = width.length <= 10 ? width : width.slice(0, 10);
-            }
-          }
-          // Opera <= 7.54u2 discards the values associated with empty string keys
-          // (`""`) only if they are used directly within an object member list
-          // (e.g., `!("" in { "": 1})`).
-          return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
-        };
-      }
+	var jsonDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/jsonDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	// Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
+	// dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
+	jsonDiff.useLongestToken = true;
 
-      // Public: Parses a JSON source string.
-      if (!has("json-parse")) {
-        var fromCharCode = String.fromCharCode;
-
-        // Internal: A map of escaped control characters and their unescaped
-        // equivalents.
-        var Unescapes = {
-          92: "\\",
-          34: '"',
-          47: "/",
-          98: "\b",
-          116: "\t",
-          110: "\n",
-          102: "\f",
-          114: "\r"
-        };
+	jsonDiff.tokenize = /*istanbul ignore start*/_line.lineDiff /*istanbul ignore end*/.tokenize;
+	jsonDiff.castInput = function (value) {
+	  /*istanbul ignore start*/var _options = /*istanbul ignore end*/this.options,
+	      undefinedReplacement = _options.undefinedReplacement,
+	      _options$stringifyRep = _options.stringifyReplacer,
+	      stringifyReplacer = _options$stringifyRep === undefined ? function (k, v) /*istanbul ignore start*/{
+	    return (/*istanbul ignore end*/typeof v === 'undefined' ? undefinedReplacement : v
+	    );
+	  } : _options$stringifyRep;
 
-        // Internal: Stores the parser state.
-        var Index, Source;
 
-        // Internal: Resets the parser state and throws a `SyntaxError`.
-        var abort = function () {
-          Index = Source = null;
-          throw SyntaxError();
-        };
+	  return typeof value === 'string' ? value : JSON.stringify(canonicalize(value, null, null, stringifyReplacer), stringifyReplacer, '  ');
+	};
+	jsonDiff.equals = function (left, right) {
+	  return (/*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'))
+	  );
+	};
 
-        // Internal: Returns the next token, or `"$"` if the parser has reached
-        // the end of the source string. A token may be a string, number, `null`
-        // literal, or Boolean literal.
-        var lex = function () {
-          var source = Source, length = source.length, value, begin, position, isSigned, charCode;
-          while (Index < length) {
-            charCode = source.charCodeAt(Index);
-            switch (charCode) {
-              case 9: case 10: case 13: case 32:
-                // Skip whitespace tokens, including tabs, carriage returns, line
-                // feeds, and space characters.
-                Index++;
-                break;
-              case 123: case 125: case 91: case 93: case 58: case 44:
-                // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
-                // the current position.
-                value = charIndexBuggy ? source.charAt(Index) : source[Index];
-                Index++;
-                return value;
-              case 34:
-                // `"` delimits a JSON string; advance to the next character and
-                // begin parsing the string. String tokens are prefixed with the
-                // sentinel `@` character to distinguish them from punctuators and
-                // end-of-string tokens.
-                for (value = "@", Index++; Index < length;) {
-                  charCode = source.charCodeAt(Index);
-                  if (charCode < 32) {
-                    // Unescaped ASCII control characters (those with a code unit
-                    // less than the space character) are not permitted.
-                    abort();
-                  } else if (charCode == 92) {
-                    // A reverse solidus (`\`) marks the beginning of an escaped
-                    // control character (including `"`, `\`, and `/`) or Unicode
-                    // escape sequence.
-                    charCode = source.charCodeAt(++Index);
-                    switch (charCode) {
-                      case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
-                        // Revive escaped control characters.
-                        value += Unescapes[charCode];
-                        Index++;
-                        break;
-                      case 117:
-                        // `\u` marks the beginning of a Unicode escape sequence.
-                        // Advance to the first character and validate the
-                        // four-digit code point.
-                        begin = ++Index;
-                        for (position = Index + 4; Index < position; Index++) {
-                          charCode = source.charCodeAt(Index);
-                          // A valid sequence comprises four hexdigits (case-
-                          // insensitive) that form a single hexadecimal value.
-                          if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
-                            // Invalid Unicode escape sequence.
-                            abort();
-                          }
-                        }
-                        // Revive the escaped character.
-                        value += fromCharCode("0x" + source.slice(begin, Index));
-                        break;
-                      default:
-                        // Invalid escape sequence.
-                        abort();
-                    }
-                  } else {
-                    if (charCode == 34) {
-                      // An unescaped double-quote character marks the end of the
-                      // string.
-                      break;
-                    }
-                    charCode = source.charCodeAt(Index);
-                    begin = Index;
-                    // Optimize for the common case where a string is valid.
-                    while (charCode >= 32 && charCode != 92 && charCode != 34) {
-                      charCode = source.charCodeAt(++Index);
-                    }
-                    // Append the string as-is.
-                    value += source.slice(begin, Index);
-                  }
-                }
-                if (source.charCodeAt(Index) == 34) {
-                  // Advance to the next character and return the revived string.
-                  Index++;
-                  return value;
-                }
-                // Unterminated string.
-                abort();
-              default:
-                // Parse numbers and literals.
-                begin = Index;
-                // Advance past the negative sign, if one is specified.
-                if (charCode == 45) {
-                  isSigned = true;
-                  charCode = source.charCodeAt(++Index);
-                }
-                // Parse an integer or floating-point value.
-                if (charCode >= 48 && charCode <= 57) {
-                  // Leading zeroes are interpreted as octal literals.
-                  if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
-                    // Illegal octal literal.
-                    abort();
-                  }
-                  isSigned = false;
-                  // Parse the integer component.
-                  for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
-                  // Floats cannot contain a leading decimal point; however, this
-                  // case is already accounted for by the parser.
-                  if (source.charCodeAt(Index) == 46) {
-                    position = ++Index;
-                    // Parse the decimal component.
-                    for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
-                    if (position == Index) {
-                      // Illegal trailing decimal.
-                      abort();
-                    }
-                    Index = position;
-                  }
-                  // Parse exponents. The `e` denoting the exponent is
-                  // case-insensitive.
-                  charCode = source.charCodeAt(Index);
-                  if (charCode == 101 || charCode == 69) {
-                    charCode = source.charCodeAt(++Index);
-                    // Skip past the sign following the exponent, if one is
-                    // specified.
-                    if (charCode == 43 || charCode == 45) {
-                      Index++;
-                    }
-                    // Parse the exponential component.
-                    for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
-                    if (position == Index) {
-                      // Illegal empty exponent.
-                      abort();
-                    }
-                    Index = position;
-                  }
-                  // Coerce the parsed value to a JavaScript number.
-                  return +source.slice(begin, Index);
-                }
-                // A negative sign may only precede numbers.
-                if (isSigned) {
-                  abort();
-                }
-                // `true`, `false`, and `null` literals.
-                if (source.slice(Index, Index + 4) == "true") {
-                  Index += 4;
-                  return true;
-                } else if (source.slice(Index, Index + 5) == "false") {
-                  Index += 5;
-                  return false;
-                } else if (source.slice(Index, Index + 4) == "null") {
-                  Index += 4;
-                  return null;
-                }
-                // Unrecognized token.
-                abort();
-            }
-          }
-          // Return the sentinel `$` character if the parser has reached the end
-          // of the source string.
-          return "$";
-        };
+	function diffJson(oldObj, newObj, options) {
+	  return jsonDiff.diff(oldObj, newObj, options);
+	}
 
-        // Internal: Parses a JSON `value` token.
-        var get = function (value) {
-          var results, hasMembers;
-          if (value == "$") {
-            // Unexpected end of input.
-            abort();
-          }
-          if (typeof value == "string") {
-            if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
-              // Remove the sentinel `@` character.
-              return value.slice(1);
-            }
-            // Parse object and array literals.
-            if (value == "[") {
-              // Parses a JSON array, returning a new JavaScript array.
-              results = [];
-              for (;; hasMembers || (hasMembers = true)) {
-                value = lex();
-                // A closing square bracket marks the end of the array literal.
-                if (value == "]") {
-                  break;
-                }
-                // If the array literal contains elements, the current token
-                // should be a comma separating the previous element from the
-                // next.
-                if (hasMembers) {
-                  if (value == ",") {
-                    value = lex();
-                    if (value == "]") {
-                      // Unexpected trailing `,` in array literal.
-                      abort();
-                    }
-                  } else {
-                    // A `,` must separate each array element.
-                    abort();
-                  }
-                }
-                // Elisions and leading commas are not permitted.
-                if (value == ",") {
-                  abort();
-                }
-                results.push(get(value));
-              }
-              return results;
-            } else if (value == "{") {
-              // Parses a JSON object, returning a new JavaScript object.
-              results = {};
-              for (;; hasMembers || (hasMembers = true)) {
-                value = lex();
-                // A closing curly brace marks the end of the object literal.
-                if (value == "}") {
-                  break;
-                }
-                // If the object literal contains members, the current token
-                // should be a comma separator.
-                if (hasMembers) {
-                  if (value == ",") {
-                    value = lex();
-                    if (value == "}") {
-                      // Unexpected trailing `,` in object literal.
-                      abort();
-                    }
-                  } else {
-                    // A `,` must separate each object member.
-                    abort();
-                  }
-                }
-                // Leading commas are not permitted, object property names must be
-                // double-quoted strings, and a `:` must separate each property
-                // name and value.
-                if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
-                  abort();
-                }
-                results[value.slice(1)] = get(lex());
-              }
-              return results;
-            }
-            // Unexpected token encountered.
-            abort();
-          }
-          return value;
-        };
+	// This function handles the presence of circular references by bailing out when encountering an
+	// object that is already on the "stack" of items being processed. Accepts an optional replacer
+	function canonicalize(obj, stack, replacementStack, replacer, key) {
+	  stack = stack || [];
+	  replacementStack = replacementStack || [];
+
+	  if (replacer) {
+	    obj = replacer(key, obj);
+	  }
+
+	  var i = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
+
+	  for (i = 0; i < stack.length; i += 1) {
+	    if (stack[i] === obj) {
+	      return replacementStack[i];
+	    }
+	  }
+
+	  var canonicalizedObj = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
+
+	  if ('[object Array]' === objectPrototypeToString.call(obj)) {
+	    stack.push(obj);
+	    canonicalizedObj = new Array(obj.length);
+	    replacementStack.push(canonicalizedObj);
+	    for (i = 0; i < obj.length; i += 1) {
+	      canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack, replacer, key);
+	    }
+	    stack.pop();
+	    replacementStack.pop();
+	    return canonicalizedObj;
+	  }
+
+	  if (obj && obj.toJSON) {
+	    obj = obj.toJSON();
+	  }
+
+	  if ( /*istanbul ignore start*/(typeof /*istanbul ignore end*/obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && obj !== null) {
+	    stack.push(obj);
+	    canonicalizedObj = {};
+	    replacementStack.push(canonicalizedObj);
+	    var sortedKeys = [],
+	        _key = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
+	    for (_key in obj) {
+	      /* istanbul ignore else */
+	      if (obj.hasOwnProperty(_key)) {
+	        sortedKeys.push(_key);
+	      }
+	    }
+	    sortedKeys.sort();
+	    for (i = 0; i < sortedKeys.length; i += 1) {
+	      _key = sortedKeys[i];
+	      canonicalizedObj[_key] = canonicalize(obj[_key], stack, replacementStack, replacer, _key);
+	    }
+	    stack.pop();
+	    replacementStack.pop();
+	  } else {
+	    canonicalizedObj = obj;
+	  }
+	  return canonicalizedObj;
+	}
 
-        // Internal: Updates a traversed object member.
-        var update = function (source, property, callback) {
-          var element = walk(source, property, callback);
-          if (element === undef) {
-            delete source[property];
-          } else {
-            source[property] = element;
-          }
-        };
 
-        // Internal: Recursively traverses a parsed JSON object, invoking the
-        // `callback` function for each value. This is an implementation of the
-        // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
-        var walk = function (source, property, callback) {
-          var value = source[property], length;
-          if (typeof value == "object" && value) {
-            // `forEach` can't be used to traverse an array in Opera <= 8.54
-            // because its `Object#hasOwnProperty` implementation returns `false`
-            // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
-            if (getClass.call(value) == arrayClass) {
-              for (length = value.length; length--;) {
-                update(value, length, callback);
-              }
-            } else {
-              forEach(value, function (property) {
-                update(value, property, callback);
-              });
-            }
-          }
-          return callback.call(source, property, value);
-        };
 
-        // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
-        exports.parse = function (source, callback) {
-          var result, value;
-          Index = 0;
-          Source = "" + source;
-          result = get(lex());
-          // If a JSON string contains multiple tokens, it is invalid.
-          if (lex() != "$") {
-            abort();
-          }
-          // Reset the parser state.
-          Index = Source = null;
-          return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
-        };
-      }
-    }
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __webpack_require__) {
 
-    exports["runInContext"] = runInContext;
-    return exports;
-  }
+	/*istanbul ignore start*/'use strict';
 
-  if (freeExports && !isLoader) {
-    // Export for CommonJS environments.
-    runInContext(root, freeExports);
-  } else {
-    // Export for web browsers and JavaScript engines.
-    var nativeJSON = root.JSON,
-        previousJSON = root["JSON3"],
-        isRestored = false;
-
-    var JSON3 = runInContext(root, (root["JSON3"] = {
-      // Public: Restores the original value of the global `JSON` object and
-      // returns a reference to the `JSON3` object.
-      "noConflict": function () {
-        if (!isRestored) {
-          isRestored = true;
-          root.JSON = nativeJSON;
-          root["JSON3"] = previousJSON;
-          nativeJSON = previousJSON = null;
-        }
-        return JSON3;
-      }
-    }));
+	exports.__esModule = true;
+	exports.arrayDiff = undefined;
+	exports. /*istanbul ignore end*/diffArrays = diffArrays;
 
-    root.JSON = {
-      "parse": JSON3.parse,
-      "stringify": JSON3.stringify
-    };
-  }
+	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-  // Export for asynchronous module loaders.
-  if (isLoader) {
-    define(function () {
-      return JSON3;
-    });
-  }
-}).call(this);
+	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],55:[function(require,module,exports){
-/**
- * lodash 3.2.0 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
-var baseCopy = require('lodash._basecopy'),
-    keys = require('lodash.keys');
+	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
-/**
- * The base implementation of `_.assign` without support for argument juggling,
- * multiple sources, and `customizer` functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @returns {Object} Returns `object`.
- */
-function baseAssign(object, source) {
-  return source == null
-    ? object
-    : baseCopy(source, keys(source), object);
-}
+	/*istanbul ignore end*/var arrayDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/arrayDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
+	arrayDiff.tokenize = function (value) {
+	  return value.slice();
+	};
+	arrayDiff.join = arrayDiff.removeEmpty = function (value) {
+	  return value;
+	};
 
-module.exports = baseAssign;
+	function diffArrays(oldArr, newArr, callback) {
+	  return arrayDiff.diff(oldArr, newArr, callback);
+	}
 
-},{"lodash._basecopy":56,"lodash.keys":63}],56:[function(require,module,exports){
-/**
- * lodash 3.0.1 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
 
-/**
- * Copies properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @returns {Object} Returns `object`.
- */
-function baseCopy(source, props, object) {
-  object || (object = {});
 
-  var index = -1,
-      length = props.length;
+/***/ }),
+/* 10 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/*istanbul ignore start*/'use strict';
+
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/applyPatch = applyPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatches = applyPatches;
+
+	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;
+
+	var /*istanbul ignore start*/_distanceIterator = __webpack_require__(12) /*istanbul ignore end*/;
+
+	/*istanbul ignore start*/var _distanceIterator2 = _interopRequireDefault(_distanceIterator);
+
+	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+	/*istanbul ignore end*/function applyPatch(source, uniDiff) {
+	  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+	  if (typeof uniDiff === 'string') {
+	    uniDiff = /*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(uniDiff);
+	  }
+
+	  if (Array.isArray(uniDiff)) {
+	    if (uniDiff.length > 1) {
+	      throw new Error('applyPatch only works with a single input.');
+	    }
+
+	    uniDiff = uniDiff[0];
+	  }
+
+	  // Apply the diff to the input
+	  var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
+	      delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
+	      hunks = uniDiff.hunks,
+	      compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) /*istanbul ignore start*/{
+	    return (/*istanbul ignore end*/line === patchContent
+	    );
+	  },
+	      errorCount = 0,
+	      fuzzFactor = options.fuzzFactor || 0,
+	      minLine = 0,
+	      offset = 0,
+	      removeEOFNL = /*istanbul ignore start*/void 0 /*istanbul ignore end*/,
+	      addEOFNL = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
+
+	  /**
+	   * Checks if the hunk exactly fits on the provided location
+	   */
+	  function hunkFits(hunk, toPos) {
+	    for (var j = 0; j < hunk.lines.length; j++) {
+	      var line = hunk.lines[j],
+	          operation = line.length > 0 ? line[0] : ' ',
+	          content = line.length > 0 ? line.substr(1) : line;
+
+	      if (operation === ' ' || operation === '-') {
+	        // Context sanity check
+	        if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
+	          errorCount++;
+
+	          if (errorCount > fuzzFactor) {
+	            return false;
+	          }
+	        }
+	        toPos++;
+	      }
+	    }
+
+	    return true;
+	  }
+
+	  // Search best fit offsets for each hunk based on the previous ones
+	  for (var i = 0; i < hunks.length; i++) {
+	    var hunk = hunks[i],
+	        maxLine = lines.length - hunk.oldLines,
+	        localOffset = 0,
+	        toPos = offset + hunk.oldStart - 1;
+
+	    var iterator = /*istanbul ignore start*/(0, _distanceIterator2['default']) /*istanbul ignore end*/(toPos, minLine, maxLine);
+
+	    for (; localOffset !== undefined; localOffset = iterator()) {
+	      if (hunkFits(hunk, toPos + localOffset)) {
+	        hunk.offset = offset += localOffset;
+	        break;
+	      }
+	    }
+
+	    if (localOffset === undefined) {
+	      return false;
+	    }
+
+	    // Set lower text limit to end of the current hunk, so next ones don't try
+	    // to fit over already patched text
+	    minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
+	  }
+
+	  // Apply patch hunks
+	  var diffOffset = 0;
+	  for (var _i = 0; _i < hunks.length; _i++) {
+	    var _hunk = hunks[_i],
+	        _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;
+	    diffOffset += _hunk.newLines - _hunk.oldLines;
+
+	    if (_toPos < 0) {
+	      // Creating a new file
+	      _toPos = 0;
+	    }
+
+	    for (var j = 0; j < _hunk.lines.length; j++) {
+	      var line = _hunk.lines[j],
+	          operation = line.length > 0 ? line[0] : ' ',
+	          content = line.length > 0 ? line.substr(1) : line,
+	          delimiter = _hunk.linedelimiters[j];
+
+	      if (operation === ' ') {
+	        _toPos++;
+	      } else if (operation === '-') {
+	        lines.splice(_toPos, 1);
+	        delimiters.splice(_toPos, 1);
+	        /* istanbul ignore else */
+	      } else if (operation === '+') {
+	        lines.splice(_toPos, 0, content);
+	        delimiters.splice(_toPos, 0, delimiter);
+	        _toPos++;
+	      } else if (operation === '\\') {
+	        var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;
+	        if (previousOperation === '+') {
+	          removeEOFNL = true;
+	        } else if (previousOperation === '-') {
+	          addEOFNL = true;
+	        }
+	      }
+	    }
+	  }
+
+	  // Handle EOFNL insertion/removal
+	  if (removeEOFNL) {
+	    while (!lines[lines.length - 1]) {
+	      lines.pop();
+	      delimiters.pop();
+	    }
+	  } else if (addEOFNL) {
+	    lines.push('');
+	    delimiters.push('\n');
+	  }
+	  for (var _k = 0; _k < lines.length - 1; _k++) {
+	    lines[_k] = lines[_k] + delimiters[_k];
+	  }
+	  return lines.join('');
+	}
 
-  while (++index < length) {
-    var key = props[index];
-    object[key] = source[key];
-  }
-  return object;
-}
+	// Wrapper that supports multiple file patches via callbacks.
+	function applyPatches(uniDiff, options) {
+	  if (typeof uniDiff === 'string') {
+	    uniDiff = /*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(uniDiff);
+	  }
+
+	  var currentIndex = 0;
+	  function processIndex() {
+	    var index = uniDiff[currentIndex++];
+	    if (!index) {
+	      return options.complete();
+	    }
+
+	    options.loadFile(index, function (err, data) {
+	      if (err) {
+	        return options.complete(err);
+	      }
+
+	      var updatedContent = applyPatch(data, index, options);
+	      options.patched(index, updatedContent, function (err) {
+	        if (err) {
+	          return options.complete(err);
+	        }
+
+	        processIndex();
+	      });
+	    });
+	  }
+	  processIndex();
+	}
 
-module.exports = baseCopy;
 
-},{}],57:[function(require,module,exports){
-/**
- * lodash 3.0.3 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
 
-/**
- * The base implementation of `_.create` without support for assigning
- * properties to the created object.
- *
- * @private
- * @param {Object} prototype The object to inherit from.
- * @returns {Object} Returns the new object.
- */
-var baseCreate = (function() {
-  function object() {}
-  return function(prototype) {
-    if (isObject(prototype)) {
-      object.prototype = prototype;
-      var result = new object;
-      object.prototype = undefined;
-    }
-    return result || {};
-  };
-}());
+/***/ }),
+/* 11 */
+/***/ (function(module, exports) {
+
+	/*istanbul ignore start*/'use strict';
+
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/parsePatch = parsePatch;
+	function parsePatch(uniDiff) {
+	  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+	  var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
+	      delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
+	      list = [],
+	      i = 0;
+
+	  function parseIndex() {
+	    var index = {};
+	    list.push(index);
+
+	    // Parse diff metadata
+	    while (i < diffstr.length) {
+	      var line = diffstr[i];
+
+	      // File header found, end parsing diff metadata
+	      if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
+	        break;
+	      }
+
+	      // Diff index
+	      var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
+	      if (header) {
+	        index.index = header[1];
+	      }
+
+	      i++;
+	    }
+
+	    // Parse file headers if they are defined. Unified diff requires them, but
+	    // there's no technical issues to have an isolated hunk without file header
+	    parseFileHeader(index);
+	    parseFileHeader(index);
+
+	    // Parse hunks
+	    index.hunks = [];
+
+	    while (i < diffstr.length) {
+	      var _line = diffstr[i];
+
+	      if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
+	        break;
+	      } else if (/^@@/.test(_line)) {
+	        index.hunks.push(parseHunk());
+	      } else if (_line && options.strict) {
+	        // Ignore unexpected content unless in strict mode
+	        throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
+	      } else {
+	        i++;
+	      }
+	    }
+	  }
+
+	  // Parses the --- and +++ headers, if none are found, no lines
+	  // are consumed.
+	  function parseFileHeader(index) {
+	    var fileHeader = /^(---|\+\+\+)\s+(.*)$/.exec(diffstr[i]);
+	    if (fileHeader) {
+	      var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
+	      var data = fileHeader[2].split('\t', 2);
+	      var fileName = data[0].replace(/\\\\/g, '\\');
+	      if (/^".*"$/.test(fileName)) {
+	        fileName = fileName.substr(1, fileName.length - 2);
+	      }
+	      index[keyPrefix + 'FileName'] = fileName;
+	      index[keyPrefix + 'Header'] = (data[1] || '').trim();
+
+	      i++;
+	    }
+	  }
+
+	  // Parses a hunk
+	  // This assumes that we are at the start of a hunk.
+	  function parseHunk() {
+	    var chunkHeaderIndex = i,
+	        chunkHeaderLine = diffstr[i++],
+	        chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
+
+	    var hunk = {
+	      oldStart: +chunkHeader[1],
+	      oldLines: +chunkHeader[2] || 1,
+	      newStart: +chunkHeader[3],
+	      newLines: +chunkHeader[4] || 1,
+	      lines: [],
+	      linedelimiters: []
+	    };
+
+	    var addCount = 0,
+	        removeCount = 0;
+	    for (; i < diffstr.length; i++) {
+	      // Lines starting with '---' could be mistaken for the "remove line" operation
+	      // But they could be the header for the next file. Therefore prune such cases out.
+	      if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
+	        break;
+	      }
+	      var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];
+
+	      if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
+	        hunk.lines.push(diffstr[i]);
+	        hunk.linedelimiters.push(delimiters[i] || '\n');
+
+	        if (operation === '+') {
+	          addCount++;
+	        } else if (operation === '-') {
+	          removeCount++;
+	        } else if (operation === ' ') {
+	          addCount++;
+	          removeCount++;
+	        }
+	      } else {
+	        break;
+	      }
+	    }
+
+	    // Handle the empty block count case
+	    if (!addCount && hunk.newLines === 1) {
+	      hunk.newLines = 0;
+	    }
+	    if (!removeCount && hunk.oldLines === 1) {
+	      hunk.oldLines = 0;
+	    }
+
+	    // Perform optional sanity checking
+	    if (options.strict) {
+	      if (addCount !== hunk.newLines) {
+	        throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
+	      }
+	      if (removeCount !== hunk.oldLines) {
+	        throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
+	      }
+	    }
+
+	    return hunk;
+	  }
+
+	  while (i < diffstr.length) {
+	    parseIndex();
+	  }
+
+	  return list;
+	}
 
-/**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(1);
- * // => false
- */
-function isObject(value) {
-  // Avoid a V8 JIT bug in Chrome 19-20.
-  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
-}
 
-module.exports = baseCreate;
 
-},{}],58:[function(require,module,exports){
-/**
- * lodash 3.9.1 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
+/***/ }),
+/* 12 */
+/***/ (function(module, exports) {
 
-/** `Object#toString` result references. */
-var funcTag = '[object Function]';
+	/*istanbul ignore start*/"use strict";
 
-/** Used to detect host constructors (Safari > 5). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
+	exports.__esModule = true;
 
-/**
- * Checks if `value` is object-like.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- */
-function isObjectLike(value) {
-  return !!value && typeof value == 'object';
-}
+	exports["default"] = /*istanbul ignore end*/function (start, minLine, maxLine) {
+	  var wantForward = true,
+	      backwardExhausted = false,
+	      forwardExhausted = false,
+	      localOffset = 1;
 
-/** Used for native method references. */
-var objectProto = Object.prototype;
+	  return function iterator() {
+	    if (wantForward && !forwardExhausted) {
+	      if (backwardExhausted) {
+	        localOffset++;
+	      } else {
+	        wantForward = false;
+	      }
 
-/** Used to resolve the decompiled source of functions. */
-var fnToString = Function.prototype.toString;
+	      // Check if trying to fit beyond text length, and if not, check it fits
+	      // after offset location (or desired location on first iteration)
+	      if (start + localOffset <= maxLine) {
+	        return localOffset;
+	      }
 
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+	      forwardExhausted = true;
+	    }
 
-/**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objToString = objectProto.toString;
+	    if (!backwardExhausted) {
+	      if (!forwardExhausted) {
+	        wantForward = true;
+	      }
 
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
-  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
+	      // Check if trying to fit before text beginning, and if not, check it fits
+	      // before offset location
+	      if (minLine <= start - localOffset) {
+	        return -localOffset++;
+	      }
 
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
-  var value = object == null ? undefined : object[key];
-  return isNative(value) ? value : undefined;
-}
+	      backwardExhausted = true;
+	      return iterator();
+	    }
 
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in older versions of Chrome and Safari which return 'function' for regexes
-  // and Safari 8 equivalents which return 'object' for typed array constructors.
-  return isObject(value) && objToString.call(value) == funcTag;
-}
+	    // We tried to fit hunk before text beginning and beyond text length, then
+	    // hunk can't fit on the text. Return undefined
+	  };
+	};
 
-/**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(1);
- * // => false
- */
-function isObject(value) {
-  // Avoid a V8 JIT bug in Chrome 19-20.
-  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
-}
 
-/**
- * Checks if `value` is a native function.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
- * @example
- *
- * _.isNative(Array.prototype.push);
- * // => true
- *
- * _.isNative(_);
- * // => false
- */
-function isNative(value) {
-  if (value == null) {
-    return false;
-  }
-  if (isFunction(value)) {
-    return reIsNative.test(fnToString.call(value));
-  }
-  return isObjectLike(value) && reIsHostCtor.test(value);
-}
 
-module.exports = getNative;
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __webpack_require__) {
 
-},{}],59:[function(require,module,exports){
-/**
- * lodash 3.0.9 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
+	/*istanbul ignore start*/'use strict';
 
-/** Used to detect unsigned integer values. */
-var reIsUint = /^\d+$/;
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/calcLineCount = calcLineCount;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/merge = merge;
 
-/**
- * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
- * of an array-like value.
- */
-var MAX_SAFE_INTEGER = 9007199254740991;
+	var /*istanbul ignore start*/_create = __webpack_require__(14) /*istanbul ignore end*/;
 
-/**
- * The base implementation of `_.property` without support for deep paths.
- *
- * @private
- * @param {string} key The key of the property to get.
- * @returns {Function} Returns the new function.
- */
-function baseProperty(key) {
-  return function(object) {
-    return object == null ? undefined : object[key];
-  };
-}
+	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;
 
-/**
- * Gets the "length" property value of `object`.
- *
- * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
- * that affects Safari on at least iOS 8.1-8.3 ARM64.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {*} Returns the "length" value.
- */
-var getLength = baseProperty('length');
+	var /*istanbul ignore start*/_array = __webpack_require__(15) /*istanbul ignore end*/;
 
-/**
- * Checks if `value` is array-like.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- */
-function isArrayLike(value) {
-  return value != null && isLength(getLength(value));
-}
+	/*istanbul ignore start*/function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
 
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
-  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
-  length = length == null ? MAX_SAFE_INTEGER : length;
-  return value > -1 && value % 1 == 0 && value < length;
-}
+	/*istanbul ignore end*/function calcLineCount(hunk) {
+	  /*istanbul ignore start*/var _calcOldNewLineCount = /*istanbul ignore end*/calcOldNewLineCount(hunk.lines),
+	      oldLines = _calcOldNewLineCount.oldLines,
+	      newLines = _calcOldNewLineCount.newLines;
 
-/**
- * Checks if the provided arguments are from an iteratee call.
- *
- * @private
- * @param {*} value The potential iteratee value argument.
- * @param {*} index The potential iteratee index or key argument.
- * @param {*} object The potential iteratee object argument.
- * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
- */
-function isIterateeCall(value, index, object) {
-  if (!isObject(object)) {
-    return false;
-  }
-  var type = typeof index;
-  if (type == 'number'
-      ? (isArrayLike(object) && isIndex(index, object.length))
-      : (type == 'string' && index in object)) {
-    var other = object[index];
-    return value === value ? (value === other) : (other !== other);
-  }
-  return false;
-}
+	  if (oldLines !== undefined) {
+	    hunk.oldLines = oldLines;
+	  } else {
+	    delete hunk.oldLines;
+	  }
 
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- */
-function isLength(value) {
-  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-}
+	  if (newLines !== undefined) {
+	    hunk.newLines = newLines;
+	  } else {
+	    delete hunk.newLines;
+	  }
+	}
 
-/**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(1);
- * // => false
- */
-function isObject(value) {
-  // Avoid a V8 JIT bug in Chrome 19-20.
-  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
-}
+	function merge(mine, theirs, base) {
+	  mine = loadPatch(mine, base);
+	  theirs = loadPatch(theirs, base);
+
+	  var ret = {};
+
+	  // For index we just let it pass through as it doesn't have any necessary meaning.
+	  // Leaving sanity checks on this to the API consumer that may know more about the
+	  // meaning in their own context.
+	  if (mine.index || theirs.index) {
+	    ret.index = mine.index || theirs.index;
+	  }
+
+	  if (mine.newFileName || theirs.newFileName) {
+	    if (!fileNameChanged(mine)) {
+	      // No header or no change in ours, use theirs (and ours if theirs does not exist)
+	      ret.oldFileName = theirs.oldFileName || mine.oldFileName;
+	      ret.newFileName = theirs.newFileName || mine.newFileName;
+	      ret.oldHeader = theirs.oldHeader || mine.oldHeader;
+	      ret.newHeader = theirs.newHeader || mine.newHeader;
+	    } else if (!fileNameChanged(theirs)) {
+	      // No header or no change in theirs, use ours
+	      ret.oldFileName = mine.oldFileName;
+	      ret.newFileName = mine.newFileName;
+	      ret.oldHeader = mine.oldHeader;
+	      ret.newHeader = mine.newHeader;
+	    } else {
+	      // Both changed... figure it out
+	      ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
+	      ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
+	      ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
+	      ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
+	    }
+	  }
+
+	  ret.hunks = [];
+
+	  var mineIndex = 0,
+	      theirsIndex = 0,
+	      mineOffset = 0,
+	      theirsOffset = 0;
+
+	  while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
+	    var mineCurrent = mine.hunks[mineIndex] || { oldStart: Infinity },
+	        theirsCurrent = theirs.hunks[theirsIndex] || { oldStart: Infinity };
+
+	    if (hunkBefore(mineCurrent, theirsCurrent)) {
+	      // This patch does not overlap with any of the others, yay.
+	      ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
+	      mineIndex++;
+	      theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
+	    } else if (hunkBefore(theirsCurrent, mineCurrent)) {
+	      // This patch does not overlap with any of the others, yay.
+	      ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
+	      theirsIndex++;
+	      mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
+	    } else {
+	      // Overlap, merge as best we can
+	      var mergedHunk = {
+	        oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
+	        oldLines: 0,
+	        newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
+	        newLines: 0,
+	        lines: []
+	      };
+	      mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
+	      theirsIndex++;
+	      mineIndex++;
+
+	      ret.hunks.push(mergedHunk);
+	    }
+	  }
+
+	  return ret;
+	}
 
-module.exports = isIterateeCall;
+	function loadPatch(param, base) {
+	  if (typeof param === 'string') {
+	    if (/^@@/m.test(param) || /^Index:/m.test(param)) {
+	      return (/*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(param)[0]
+	      );
+	    }
+
+	    if (!base) {
+	      throw new Error('Must provide a base reference or pass in a patch');
+	    }
+	    return (/*istanbul ignore start*/(0, _create.structuredPatch) /*istanbul ignore end*/(undefined, undefined, base, param)
+	    );
+	  }
+
+	  return param;
+	}
 
-},{}],60:[function(require,module,exports){
-/**
- * lodash 3.1.1 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
-var baseAssign = require('lodash._baseassign'),
-    baseCreate = require('lodash._basecreate'),
-    isIterateeCall = require('lodash._isiterateecall');
+	function fileNameChanged(patch) {
+	  return patch.newFileName && patch.newFileName !== patch.oldFileName;
+	}
 
-/**
- * Creates an object that inherits from the given `prototype` object. If a
- * `properties` object is provided its own enumerable properties are assigned
- * to the created object.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} prototype The object to inherit from.
- * @param {Object} [properties] The properties to assign to the object.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Object} Returns the new object.
- * @example
- *
- * function Shape() {
- *   this.x = 0;
- *   this.y = 0;
- * }
- *
- * function Circle() {
- *   Shape.call(this);
- * }
- *
- * Circle.prototype = _.create(Shape.prototype, {
- *   'constructor': Circle
- * });
- *
- * var circle = new Circle;
- * circle instanceof Circle;
- * // => true
- *
- * circle instanceof Shape;
- * // => true
- */
-function create(prototype, properties, guard) {
-  var result = baseCreate(prototype);
-  if (guard && isIterateeCall(prototype, properties, guard)) {
-    properties = undefined;
-  }
-  return properties ? baseAssign(result, properties) : result;
-}
+	function selectField(index, mine, theirs) {
+	  if (mine === theirs) {
+	    return mine;
+	  } else {
+	    index.conflict = true;
+	    return { mine: mine, theirs: theirs };
+	  }
+	}
 
-module.exports = create;
+	function hunkBefore(test, check) {
+	  return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
+	}
 
-},{"lodash._baseassign":55,"lodash._basecreate":57,"lodash._isiterateecall":59}],61:[function(require,module,exports){
-/**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
+	function cloneHunk(hunk, offset) {
+	  return {
+	    oldStart: hunk.oldStart, oldLines: hunk.oldLines,
+	    newStart: hunk.newStart + offset, newLines: hunk.newLines,
+	    lines: hunk.lines
+	  };
+	}
 
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
+	function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
+	  // This will generally result in a conflicted hunk, but there are cases where the context
+	  // is the only overlap where we can successfully merge the content here.
+	  var mine = { offset: mineOffset, lines: mineLines, index: 0 },
+	      their = { offset: theirOffset, lines: theirLines, index: 0 };
+
+	  // Handle any leading content
+	  insertLeading(hunk, mine, their);
+	  insertLeading(hunk, their, mine);
+
+	  // Now in the overlap content. Scan through and select the best changes from each.
+	  while (mine.index < mine.lines.length && their.index < their.lines.length) {
+	    var mineCurrent = mine.lines[mine.index],
+	        theirCurrent = their.lines[their.index];
+
+	    if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
+	      // Both modified ...
+	      mutualChange(hunk, mine, their);
+	    } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
+	      /*istanbul ignore start*/var _hunk$lines;
+
+	      /*istanbul ignore end*/ // Mine inserted
+	      /*istanbul ignore start*/(_hunk$lines = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/collectChange(mine)));
+	    } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
+	      /*istanbul ignore start*/var _hunk$lines2;
+
+	      /*istanbul ignore end*/ // Theirs inserted
+	      /*istanbul ignore start*/(_hunk$lines2 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/collectChange(their)));
+	    } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
+	      // Mine removed or edited
+	      removal(hunk, mine, their);
+	    } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
+	      // Their removed or edited
+	      removal(hunk, their, mine, true);
+	    } else if (mineCurrent === theirCurrent) {
+	      // Context identity
+	      hunk.lines.push(mineCurrent);
+	      mine.index++;
+	      their.index++;
+	    } else {
+	      // Context mismatch
+	      conflict(hunk, collectChange(mine), collectChange(their));
+	    }
+	  }
+
+	  // Now push anything that may be remaining
+	  insertTrailing(hunk, mine);
+	  insertTrailing(hunk, their);
+
+	  calcLineCount(hunk);
+	}
 
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    funcTag = '[object Function]',
-    genTag = '[object GeneratorFunction]';
+	function mutualChange(hunk, mine, their) {
+	  var myChanges = collectChange(mine),
+	      theirChanges = collectChange(their);
 
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
+	  if (allRemoves(myChanges) && allRemoves(theirChanges)) {
+	    // Special case for remove changes that are supersets of one another
+	    if ( /*istanbul ignore start*/(0, _array.arrayStartsWith) /*istanbul ignore end*/(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
+	      /*istanbul ignore start*/var _hunk$lines3;
 
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+	      /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines3 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/myChanges));
+	      return;
+	    } else if ( /*istanbul ignore start*/(0, _array.arrayStartsWith) /*istanbul ignore end*/(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
+	      /*istanbul ignore start*/var _hunk$lines4;
 
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
+	      /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines4 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines4 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/theirChanges));
+	      return;
+	    }
+	  } else if ( /*istanbul ignore start*/(0, _array.arrayEqual) /*istanbul ignore end*/(myChanges, theirChanges)) {
+	    /*istanbul ignore start*/var _hunk$lines5;
 
-/** Built-in value references. */
-var propertyIsEnumerable = objectProto.propertyIsEnumerable;
+	    /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines5 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines5 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/myChanges));
+	    return;
+	  }
 
-/**
- * Checks if `value` is likely an `arguments` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an `arguments` object,
- *  else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
-function isArguments(value) {
-  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
-    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-}
+	  conflict(hunk, myChanges, theirChanges);
+	}
 
-/**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
- *
- * _.isArrayLike([1, 2, 3]);
- * // => true
- *
- * _.isArrayLike(document.body.children);
- * // => true
- *
- * _.isArrayLike('abc');
- * // => true
- *
- * _.isArrayLike(_.noop);
- * // => false
- */
-function isArrayLike(value) {
-  return value != null && isLength(value.length) && !isFunction(value);
-}
+	function removal(hunk, mine, their, swap) {
+	  var myChanges = collectChange(mine),
+	      theirChanges = collectContext(their, myChanges);
+	  if (theirChanges.merged) {
+	    /*istanbul ignore start*/var _hunk$lines6;
 
-/**
- * This method is like `_.isArrayLike` except that it also checks if `value`
- * is an object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object,
- *  else `false`.
- * @example
- *
- * _.isArrayLikeObject([1, 2, 3]);
- * // => true
- *
- * _.isArrayLikeObject(document.body.children);
- * // => true
- *
- * _.isArrayLikeObject('abc');
- * // => false
- *
- * _.isArrayLikeObject(_.noop);
- * // => false
- */
-function isArrayLikeObject(value) {
-  return isObjectLike(value) && isArrayLike(value);
-}
+	    /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines6 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines6 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/theirChanges.merged));
+	  } else {
+	    conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
+	  }
+	}
 
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a function, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in Safari 8-9 which returns 'object' for typed array and other constructors.
-  var tag = isObject(value) ? objectToString.call(value) : '';
-  return tag == funcTag || tag == genTag;
+	function conflict(hunk, mine, their) {
+	  hunk.conflict = true;
+	  hunk.lines.push({
+	    conflict: true,
+	    mine: mine,
+	    theirs: their
+	  });
+	}
+
+	function insertLeading(hunk, insert, their) {
+	  while (insert.offset < their.offset && insert.index < insert.lines.length) {
+	    var line = insert.lines[insert.index++];
+	    hunk.lines.push(line);
+	    insert.offset++;
+	  }
+	}
+	function insertTrailing(hunk, insert) {
+	  while (insert.index < insert.lines.length) {
+	    var line = insert.lines[insert.index++];
+	    hunk.lines.push(line);
+	  }
+	}
+
+	function collectChange(state) {
+	  var ret = [],
+	      operation = state.lines[state.index][0];
+	  while (state.index < state.lines.length) {
+	    var line = state.lines[state.index];
+
+	    // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.
+	    if (operation === '-' && line[0] === '+') {
+	      operation = '+';
+	    }
+
+	    if (operation === line[0]) {
+	      ret.push(line);
+	      state.index++;
+	    } else {
+	      break;
+	    }
+	  }
+
+	  return ret;
+	}
+	function collectContext(state, matchChanges) {
+	  var changes = [],
+	      merged = [],
+	      matchIndex = 0,
+	      contextChanges = false,
+	      conflicted = false;
+	  while (matchIndex < matchChanges.length && state.index < state.lines.length) {
+	    var change = state.lines[state.index],
+	        match = matchChanges[matchIndex];
+
+	    // Once we've hit our add, then we are done
+	    if (match[0] === '+') {
+	      break;
+	    }
+
+	    contextChanges = contextChanges || change[0] !== ' ';
+
+	    merged.push(match);
+	    matchIndex++;
+
+	    // Consume any additions in the other block as a conflict to attempt
+	    // to pull in the remaining context after this
+	    if (change[0] === '+') {
+	      conflicted = true;
+
+	      while (change[0] === '+') {
+	        changes.push(change);
+	        change = state.lines[++state.index];
+	      }
+	    }
+
+	    if (match.substr(1) === change.substr(1)) {
+	      changes.push(change);
+	      state.index++;
+	    } else {
+	      conflicted = true;
+	    }
+	  }
+
+	  if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
+	    conflicted = true;
+	  }
+
+	  if (conflicted) {
+	    return changes;
+	  }
+
+	  while (matchIndex < matchChanges.length) {
+	    merged.push(matchChanges[matchIndex++]);
+	  }
+
+	  return {
+	    merged: merged,
+	    changes: changes
+	  };
+	}
+
+	function allRemoves(changes) {
+	  return changes.reduce(function (prev, change) {
+	    return prev && change[0] === '-';
+	  }, true);
+	}
+	function skipRemoveSuperset(state, removeChanges, delta) {
+	  for (var i = 0; i < delta; i++) {
+	    var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);
+	    if (state.lines[state.index + i] !== ' ' + changeContent) {
+	      return false;
+	    }
+	  }
+
+	  state.index += delta;
+	  return true;
+	}
+
+	function calcOldNewLineCount(lines) {
+	  var oldLines = 0;
+	  var newLines = 0;
+
+	  lines.forEach(function (line) {
+	    if (typeof line !== 'string') {
+	      var myCount = calcOldNewLineCount(line.mine);
+	      var theirCount = calcOldNewLineCount(line.theirs);
+
+	      if (oldLines !== undefined) {
+	        if (myCount.oldLines === theirCount.oldLines) {
+	          oldLines += myCount.oldLines;
+	        } else {
+	          oldLines = undefined;
+	        }
+	      }
+
+	      if (newLines !== undefined) {
+	        if (myCount.newLines === theirCount.newLines) {
+	          newLines += myCount.newLines;
+	        } else {
+	          newLines = undefined;
+	        }
+	      }
+	    } else {
+	      if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
+	        newLines++;
+	      }
+	      if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
+	        oldLines++;
+	      }
+	    }
+	  });
+
+	  return { oldLines: oldLines, newLines: newLines };
+	}
+
+
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/*istanbul ignore start*/'use strict';
+
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/structuredPatch = structuredPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = createTwoFilesPatch;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = createPatch;
+
+	var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;
+
+	/*istanbul ignore start*/function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
+
+	/*istanbul ignore end*/function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
+	  if (!options) {
+	    options = {};
+	  }
+	  if (typeof options.context === 'undefined') {
+	    options.context = 4;
+	  }
+
+	  var diff = /*istanbul ignore start*/(0, _line.diffLines) /*istanbul ignore end*/(oldStr, newStr, options);
+	  diff.push({ value: '', lines: [] }); // Append an empty value to make cleanup easier
+
+	  function contextLines(lines) {
+	    return lines.map(function (entry) {
+	      return ' ' + entry;
+	    });
+	  }
+
+	  var hunks = [];
+	  var oldRangeStart = 0,
+	      newRangeStart = 0,
+	      curRange = [],
+	      oldLine = 1,
+	      newLine = 1;
+
+	  /*istanbul ignore start*/var _loop = function _loop( /*istanbul ignore end*/i) {
+	    var current = diff[i],
+	        lines = current.lines || current.value.replace(/\n$/, '').split('\n');
+	    current.lines = lines;
+
+	    if (current.added || current.removed) {
+	      /*istanbul ignore start*/var _curRange;
+
+	      /*istanbul ignore end*/ // If we have previous context, start with that
+	      if (!oldRangeStart) {
+	        var prev = diff[i - 1];
+	        oldRangeStart = oldLine;
+	        newRangeStart = newLine;
+
+	        if (prev) {
+	          curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
+	          oldRangeStart -= curRange.length;
+	          newRangeStart -= curRange.length;
+	        }
+	      }
+
+	      // Output our changes
+	      /*istanbul ignore start*/(_curRange = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/lines.map(function (entry) {
+	        return (current.added ? '+' : '-') + entry;
+	      })));
+
+	      // Track the updated file position
+	      if (current.added) {
+	        newLine += lines.length;
+	      } else {
+	        oldLine += lines.length;
+	      }
+	    } else {
+	      // Identical context lines. Track line changes
+	      if (oldRangeStart) {
+	        // Close out any changes that have been output (or join overlapping)
+	        if (lines.length <= options.context * 2 && i < diff.length - 2) {
+	          /*istanbul ignore start*/var _curRange2;
+
+	          /*istanbul ignore end*/ // Overlapping
+	          /*istanbul ignore start*/(_curRange2 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines)));
+	        } else {
+	          /*istanbul ignore start*/var _curRange3;
+
+	          /*istanbul ignore end*/ // end the range and output
+	          var contextSize = Math.min(lines.length, options.context);
+	          /*istanbul ignore start*/(_curRange3 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines.slice(0, contextSize))));
+
+	          var hunk = {
+	            oldStart: oldRangeStart,
+	            oldLines: oldLine - oldRangeStart + contextSize,
+	            newStart: newRangeStart,
+	            newLines: newLine - newRangeStart + contextSize,
+	            lines: curRange
+	          };
+	          if (i >= diff.length - 2 && lines.length <= options.context) {
+	            // EOF is inside this hunk
+	            var oldEOFNewline = /\n$/.test(oldStr);
+	            var newEOFNewline = /\n$/.test(newStr);
+	            if (lines.length == 0 && !oldEOFNewline) {
+	              // special case: old has no eol and no trailing context; no-nl can end up before adds
+	              curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
+	            } else if (!oldEOFNewline || !newEOFNewline) {
+	              curRange.push('\\ No newline at end of file');
+	            }
+	          }
+	          hunks.push(hunk);
+
+	          oldRangeStart = 0;
+	          newRangeStart = 0;
+	          curRange = [];
+	        }
+	      }
+	      oldLine += lines.length;
+	      newLine += lines.length;
+	    }
+	  };
+
+	  for (var i = 0; i < diff.length; i++) {
+	    /*istanbul ignore start*/_loop( /*istanbul ignore end*/i);
+	  }
+
+	  return {
+	    oldFileName: oldFileName, newFileName: newFileName,
+	    oldHeader: oldHeader, newHeader: newHeader,
+	    hunks: hunks
+	  };
+	}
+
+	function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
+	  var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);
+
+	  var ret = [];
+	  if (oldFileName == newFileName) {
+	    ret.push('Index: ' + oldFileName);
+	  }
+	  ret.push('===================================================================');
+	  ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
+	  ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
+
+	  for (var i = 0; i < diff.hunks.length; i++) {
+	    var hunk = diff.hunks[i];
+	    ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
+	    ret.push.apply(ret, hunk.lines);
+	  }
+
+	  return ret.join('\n') + '\n';
+	}
+
+	function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
+	  return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
+	}
+
+
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports) {
+
+	/*istanbul ignore start*/"use strict";
+
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/arrayEqual = arrayEqual;
+	/*istanbul ignore start*/exports. /*istanbul ignore end*/arrayStartsWith = arrayStartsWith;
+	function arrayEqual(a, b) {
+	  if (a.length !== b.length) {
+	    return false;
+	  }
+
+	  return arrayStartsWith(a, b);
+	}
+
+	function arrayStartsWith(array, start) {
+	  if (start.length > array.length) {
+	    return false;
+	  }
+
+	  for (var i = 0; i < start.length; i++) {
+	    if (start[i] !== array[i]) {
+	      return false;
+	    }
+	  }
+
+	  return true;
+	}
+
+
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports) {
+
+	/*istanbul ignore start*/"use strict";
+
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/convertChangesToDMP = convertChangesToDMP;
+	// See: http://code.google.com/p/google-diff-match-patch/wiki/API
+	function convertChangesToDMP(changes) {
+	  var ret = [],
+	      change = /*istanbul ignore start*/void 0 /*istanbul ignore end*/,
+	      operation = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
+	  for (var i = 0; i < changes.length; i++) {
+	    change = changes[i];
+	    if (change.added) {
+	      operation = 1;
+	    } else if (change.removed) {
+	      operation = -1;
+	    } else {
+	      operation = 0;
+	    }
+
+	    ret.push([operation, change.value]);
+	  }
+	  return ret;
+	}
+
+
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports) {
+
+	/*istanbul ignore start*/'use strict';
+
+	exports.__esModule = true;
+	exports. /*istanbul ignore end*/convertChangesToXML = convertChangesToXML;
+	function convertChangesToXML(changes) {
+	  var ret = [];
+	  for (var i = 0; i < changes.length; i++) {
+	    var change = changes[i];
+	    if (change.added) {
+	      ret.push('<ins>');
+	    } else if (change.removed) {
+	      ret.push('<del>');
+	    }
+
+	    ret.push(escapeHTML(change.value));
+
+	    if (change.added) {
+	      ret.push('</ins>');
+	    } else if (change.removed) {
+	      ret.push('</del>');
+	    }
+	  }
+	  return ret.join('');
+	}
+
+	function escapeHTML(s) {
+	  var n = s;
+	  n = n.replace(/&/g, '&amp;');
+	  n = n.replace(/</g, '&lt;');
+	  n = n.replace(/>/g, '&gt;');
+	  n = n.replace(/"/g, '&quot;');
+
+	  return n;
+	}
+
+
+
+/***/ })
+/******/ ])
+});
+;
+},{}],49:[function(require,module,exports){
+'use strict';
+
+var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
+
+module.exports = function (str) {
+	if (typeof str !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	return str.replace(matchOperatorsRe, '\\$&');
+};
+
+},{}],50:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var objectCreate = Object.create || objectCreatePolyfill
+var objectKeys = Object.keys || objectKeysPolyfill
+var bind = Function.prototype.bind || functionBindPolyfill
+
+function EventEmitter() {
+  if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
+    this._events = objectCreate(null);
+    this._eventsCount = 0;
+  }
+
+  this._maxListeners = this._maxListeners || undefined;
 }
+module.exports = EventEmitter;
 
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This method is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- * @example
- *
- * _.isLength(3);
- * // => true
- *
- * _.isLength(Number.MIN_VALUE);
- * // => false
- *
- * _.isLength(Infinity);
- * // => false
- *
- * _.isLength('3');
- * // => false
- */
-function isLength(value) {
-  return typeof value == 'number' &&
-    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
+
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+var defaultMaxListeners = 10;
+
+var hasDefineProperty;
+try {
+  var o = {};
+  if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
+  hasDefineProperty = o.x === 0;
+} catch (err) { hasDefineProperty = false }
+if (hasDefineProperty) {
+  Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
+    enumerable: true,
+    get: function() {
+      return defaultMaxListeners;
+    },
+    set: function(arg) {
+      // check whether the input is a positive number (whose value is zero or
+      // greater and not a NaN).
+      if (typeof arg !== 'number' || arg < 0 || arg !== arg)
+        throw new TypeError('"defaultMaxListeners" must be a positive number');
+      defaultMaxListeners = arg;
+    }
+  });
+} else {
+  EventEmitter.defaultMaxListeners = defaultMaxListeners;
 }
 
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
+  if (typeof n !== 'number' || n < 0 || isNaN(n))
+    throw new TypeError('"n" argument must be a positive number');
+  this._maxListeners = n;
+  return this;
+};
+
+function $getMaxListeners(that) {
+  if (that._maxListeners === undefined)
+    return EventEmitter.defaultMaxListeners;
+  return that._maxListeners;
 }
 
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
-  return !!value && typeof value == 'object';
+EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
+  return $getMaxListeners(this);
+};
+
+// These standalone emit* functions are used to optimize calling of event
+// handlers for fast cases because emit() itself often has a variable number of
+// arguments and can be deoptimized because of that. These functions always have
+// the same number of arguments and thus do not get deoptimized, so the code
+// inside them can execute faster.
+function emitNone(handler, isFn, self) {
+  if (isFn)
+    handler.call(self);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self);
+  }
+}
+function emitOne(handler, isFn, self, arg1) {
+  if (isFn)
+    handler.call(self, arg1);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self, arg1);
+  }
+}
+function emitTwo(handler, isFn, self, arg1, arg2) {
+  if (isFn)
+    handler.call(self, arg1, arg2);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self, arg1, arg2);
+  }
+}
+function emitThree(handler, isFn, self, arg1, arg2, arg3) {
+  if (isFn)
+    handler.call(self, arg1, arg2, arg3);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self, arg1, arg2, arg3);
+  }
+}
+
+function emitMany(handler, isFn, self, args) {
+  if (isFn)
+    handler.apply(self, args);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].apply(self, args);
+  }
+}
+
+EventEmitter.prototype.emit = function emit(type) {
+  var er, handler, len, args, i, events;
+  var doError = (type === 'error');
+
+  events = this._events;
+  if (events)
+    doError = (doError && events.error == null);
+  else if (!doError)
+    return false;
+
+  // If there is no 'error' event listener then throw.
+  if (doError) {
+    if (arguments.length > 1)
+      er = arguments[1];
+    if (er instanceof Error) {
+      throw er; // Unhandled 'error' event
+    } else {
+      // At least give some kind of context to the user
+      var err = new Error('Unhandled "error" event. (' + er + ')');
+      err.context = er;
+      throw err;
+    }
+    return false;
+  }
+
+  handler = events[type];
+
+  if (!handler)
+    return false;
+
+  var isFn = typeof handler === 'function';
+  len = arguments.length;
+  switch (len) {
+      // fast cases
+    case 1:
+      emitNone(handler, isFn, this);
+      break;
+    case 2:
+      emitOne(handler, isFn, this, arguments[1]);
+      break;
+    case 3:
+      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
+      break;
+    case 4:
+      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
+      break;
+      // slower
+    default:
+      args = new Array(len - 1);
+      for (i = 1; i < len; i++)
+        args[i - 1] = arguments[i];
+      emitMany(handler, isFn, this, args);
+  }
+
+  return true;
+};
+
+function _addListener(target, type, listener, prepend) {
+  var m;
+  var events;
+  var existing;
+
+  if (typeof listener !== 'function')
+    throw new TypeError('"listener" argument must be a function');
+
+  events = target._events;
+  if (!events) {
+    events = target._events = objectCreate(null);
+    target._eventsCount = 0;
+  } else {
+    // To avoid recursion in the case that type === "newListener"! Before
+    // adding it to the listeners, first emit "newListener".
+    if (events.newListener) {
+      target.emit('newListener', type,
+          listener.listener ? listener.listener : listener);
+
+      // Re-assign `events` because a newListener handler could have caused the
+      // this._events to be assigned to a new object
+      events = target._events;
+    }
+    existing = events[type];
+  }
+
+  if (!existing) {
+    // Optimize the case of one listener. Don't need the extra array object.
+    existing = events[type] = listener;
+    ++target._eventsCount;
+  } else {
+    if (typeof existing === 'function') {
+      // Adding the second element, need to change to array.
+      existing = events[type] =
+          prepend ? [listener, existing] : [existing, listener];
+    } else {
+      // If we've already got an array, just append.
+      if (prepend) {
+        existing.unshift(listener);
+      } else {
+        existing.push(listener);
+      }
+    }
+
+    // Check for listener leak
+    if (!existing.warned) {
+      m = $getMaxListeners(target);
+      if (m && m > 0 && existing.length > m) {
+        existing.warned = true;
+        var w = new Error('Possible EventEmitter memory leak detected. ' +
+            existing.length + ' "' + String(type) + '" listeners ' +
+            'added. Use emitter.setMaxListeners() to ' +
+            'increase limit.');
+        w.name = 'MaxListenersExceededWarning';
+        w.emitter = target;
+        w.type = type;
+        w.count = existing.length;
+        if (typeof console === 'object' && console.warn) {
+          console.warn('%s: %s', w.name, w.message);
+        }
+      }
+    }
+  }
+
+  return target;
 }
 
-module.exports = isArguments;
+EventEmitter.prototype.addListener = function addListener(type, listener) {
+  return _addListener(this, type, listener, false);
+};
 
-},{}],62:[function(require,module,exports){
-/**
- * lodash 3.0.4 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
 
-/** `Object#toString` result references. */
-var arrayTag = '[object Array]',
-    funcTag = '[object Function]';
+EventEmitter.prototype.prependListener =
+    function prependListener(type, listener) {
+      return _addListener(this, type, listener, true);
+    };
 
-/** Used to detect host constructors (Safari > 5). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
+function onceWrapper() {
+  if (!this.fired) {
+    this.target.removeListener(this.type, this.wrapFn);
+    this.fired = true;
+    switch (arguments.length) {
+      case 0:
+        return this.listener.call(this.target);
+      case 1:
+        return this.listener.call(this.target, arguments[0]);
+      case 2:
+        return this.listener.call(this.target, arguments[0], arguments[1]);
+      case 3:
+        return this.listener.call(this.target, arguments[0], arguments[1],
+            arguments[2]);
+      default:
+        var args = new Array(arguments.length);
+        for (var i = 0; i < args.length; ++i)
+          args[i] = arguments[i];
+        this.listener.apply(this.target, args);
+    }
+  }
+}
 
-/**
- * Checks if `value` is object-like.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- */
-function isObjectLike(value) {
-  return !!value && typeof value == 'object';
+function _onceWrap(target, type, listener) {
+  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
+  var wrapped = bind.call(onceWrapper, state);
+  wrapped.listener = listener;
+  state.wrapFn = wrapped;
+  return wrapped;
 }
 
-/** Used for native method references. */
-var objectProto = Object.prototype;
+EventEmitter.prototype.once = function once(type, listener) {
+  if (typeof listener !== 'function')
+    throw new TypeError('"listener" argument must be a function');
+  this.on(type, _onceWrap(this, type, listener));
+  return this;
+};
 
-/** Used to resolve the decompiled source of functions. */
-var fnToString = Function.prototype.toString;
+EventEmitter.prototype.prependOnceListener =
+    function prependOnceListener(type, listener) {
+      if (typeof listener !== 'function')
+        throw new TypeError('"listener" argument must be a function');
+      this.prependListener(type, _onceWrap(this, type, listener));
+      return this;
+    };
 
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+// Emits a 'removeListener' event if and only if the listener was removed.
+EventEmitter.prototype.removeListener =
+    function removeListener(type, listener) {
+      var list, events, position, i, originalListener;
 
-/**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objToString = objectProto.toString;
+      if (typeof listener !== 'function')
+        throw new TypeError('"listener" argument must be a function');
 
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
-  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
+      events = this._events;
+      if (!events)
+        return this;
 
-/* Native method references for those with the same name as other `lodash` methods. */
-var nativeIsArray = getNative(Array, 'isArray');
+      list = events[type];
+      if (!list)
+        return this;
 
-/**
- * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
- * of an array-like value.
- */
-var MAX_SAFE_INTEGER = 9007199254740991;
+      if (list === listener || list.listener === listener) {
+        if (--this._eventsCount === 0)
+          this._events = objectCreate(null);
+        else {
+          delete events[type];
+          if (events.removeListener)
+            this.emit('removeListener', type, list.listener || listener);
+        }
+      } else if (typeof list !== 'function') {
+        position = -1;
 
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
-  var value = object == null ? undefined : object[key];
-  return isNative(value) ? value : undefined;
+        for (i = list.length - 1; i >= 0; i--) {
+          if (list[i] === listener || list[i].listener === listener) {
+            originalListener = list[i].listener;
+            position = i;
+            break;
+          }
+        }
+
+        if (position < 0)
+          return this;
+
+        if (position === 0)
+          list.shift();
+        else
+          spliceOne(list, position);
+
+        if (list.length === 1)
+          events[type] = list[0];
+
+        if (events.removeListener)
+          this.emit('removeListener', type, originalListener || listener);
+      }
+
+      return this;
+    };
+
+EventEmitter.prototype.removeAllListeners =
+    function removeAllListeners(type) {
+      var listeners, events, i;
+
+      events = this._events;
+      if (!events)
+        return this;
+
+      // not listening for removeListener, no need to emit
+      if (!events.removeListener) {
+        if (arguments.length === 0) {
+          this._events = objectCreate(null);
+          this._eventsCount = 0;
+        } else if (events[type]) {
+          if (--this._eventsCount === 0)
+            this._events = objectCreate(null);
+          else
+            delete events[type];
+        }
+        return this;
+      }
+
+      // emit removeListener for all listeners on all events
+      if (arguments.length === 0) {
+        var keys = objectKeys(events);
+        var key;
+        for (i = 0; i < keys.length; ++i) {
+          key = keys[i];
+          if (key === 'removeListener') continue;
+          this.removeAllListeners(key);
+        }
+        this.removeAllListeners('removeListener');
+        this._events = objectCreate(null);
+        this._eventsCount = 0;
+        return this;
+      }
+
+      listeners = events[type];
+
+      if (typeof listeners === 'function') {
+        this.removeListener(type, listeners);
+      } else if (listeners) {
+        // LIFO order
+        for (i = listeners.length - 1; i >= 0; i--) {
+          this.removeListener(type, listeners[i]);
+        }
+      }
+
+      return this;
+    };
+
+function _listeners(target, type, unwrap) {
+  var events = target._events;
+
+  if (!events)
+    return [];
+
+  var evlistener = events[type];
+  if (!evlistener)
+    return [];
+
+  if (typeof evlistener === 'function')
+    return unwrap ? [evlistener.listener || evlistener] : [evlistener];
+
+  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
 }
 
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- */
-function isLength(value) {
-  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+EventEmitter.prototype.listeners = function listeners(type) {
+  return _listeners(this, type, true);
+};
+
+EventEmitter.prototype.rawListeners = function rawListeners(type) {
+  return _listeners(this, type, false);
+};
+
+EventEmitter.listenerCount = function(emitter, type) {
+  if (typeof emitter.listenerCount === 'function') {
+    return emitter.listenerCount(type);
+  } else {
+    return listenerCount.call(emitter, type);
+  }
+};
+
+EventEmitter.prototype.listenerCount = listenerCount;
+function listenerCount(type) {
+  var events = this._events;
+
+  if (events) {
+    var evlistener = events[type];
+
+    if (typeof evlistener === 'function') {
+      return 1;
+    } else if (evlistener) {
+      return evlistener.length;
+    }
+  }
+
+  return 0;
 }
 
-/**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(function() { return arguments; }());
- * // => false
- */
-var isArray = nativeIsArray || function(value) {
-  return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
+EventEmitter.prototype.eventNames = function eventNames() {
+  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
 };
 
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in older versions of Chrome and Safari which return 'function' for regexes
-  // and Safari 8 equivalents which return 'object' for typed array constructors.
-  return isObject(value) && objToString.call(value) == funcTag;
+// About 1.5x faster than the two-arg version of Array#splice().
+function spliceOne(list, index) {
+  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
+    list[i] = list[k];
+  list.pop();
 }
 
-/**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(1);
- * // => false
- */
-function isObject(value) {
-  // Avoid a V8 JIT bug in Chrome 19-20.
-  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
+function arrayClone(arr, n) {
+  var copy = new Array(n);
+  for (var i = 0; i < n; ++i)
+    copy[i] = arr[i];
+  return copy;
 }
 
-/**
- * Checks if `value` is a native function.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
- * @example
- *
- * _.isNative(Array.prototype.push);
- * // => true
- *
- * _.isNative(_);
- * // => false
- */
-function isNative(value) {
-  if (value == null) {
-    return false;
+function unwrapListeners(arr) {
+  var ret = new Array(arr.length);
+  for (var i = 0; i < ret.length; ++i) {
+    ret[i] = arr[i].listener || arr[i];
   }
-  if (isFunction(value)) {
-    return reIsNative.test(fnToString.call(value));
+  return ret;
+}
+
+function objectCreatePolyfill(proto) {
+  var F = function() {};
+  F.prototype = proto;
+  return new F;
+}
+function objectKeysPolyfill(obj) {
+  var keys = [];
+  for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
+    keys.push(k);
   }
-  return isObjectLike(value) && reIsHostCtor.test(value);
+  return k;
+}
+function functionBindPolyfill(context) {
+  var fn = this;
+  return function () {
+    return fn.apply(context, arguments);
+  };
 }
 
-module.exports = isArray;
+},{}],51:[function(require,module,exports){
+'use strict';
 
-},{}],63:[function(require,module,exports){
-/**
- * lodash 3.1.2 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
-var getNative = require('lodash._getnative'),
-    isArguments = require('lodash.isarguments'),
-    isArray = require('lodash.isarray');
+/* eslint no-invalid-this: 1 */
+
+var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
+var slice = Array.prototype.slice;
+var toStr = Object.prototype.toString;
+var funcType = '[object Function]';
+
+module.exports = function bind(that) {
+    var target = this;
+    if (typeof target !== 'function' || toStr.call(target) !== funcType) {
+        throw new TypeError(ERROR_MESSAGE + target);
+    }
+    var args = slice.call(arguments, 1);
+
+    var bound;
+    var binder = function () {
+        if (this instanceof bound) {
+            var result = target.apply(
+                this,
+                args.concat(slice.call(arguments))
+            );
+            if (Object(result) === result) {
+                return result;
+            }
+            return this;
+        } else {
+            return target.apply(
+                that,
+                args.concat(slice.call(arguments))
+            );
+        }
+    };
 
-/** Used to detect unsigned integer values. */
-var reIsUint = /^\d+$/;
+    var boundLength = Math.max(0, target.length - args.length);
+    var boundArgs = [];
+    for (var i = 0; i < boundLength; i++) {
+        boundArgs.push('$' + i);
+    }
 
-/** Used for native method references. */
-var objectProto = Object.prototype;
+    bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);
 
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+    if (target.prototype) {
+        var Empty = function Empty() {};
+        Empty.prototype = target.prototype;
+        bound.prototype = new Empty();
+        Empty.prototype = null;
+    }
 
-/* Native method references for those with the same name as other `lodash` methods. */
-var nativeKeys = getNative(Object, 'keys');
+    return bound;
+};
 
-/**
- * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
- * of an array-like value.
- */
-var MAX_SAFE_INTEGER = 9007199254740991;
+},{}],52:[function(require,module,exports){
+'use strict';
 
-/**
- * The base implementation of `_.property` without support for deep paths.
- *
- * @private
- * @param {string} key The key of the property to get.
- * @returns {Function} Returns the new function.
- */
-function baseProperty(key) {
-  return function(object) {
-    return object == null ? undefined : object[key];
-  };
-}
+var implementation = require('./implementation');
 
-/**
- * Gets the "length" property value of `object`.
- *
- * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
- * that affects Safari on at least iOS 8.1-8.3 ARM64.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {*} Returns the "length" value.
- */
-var getLength = baseProperty('length');
+module.exports = Function.prototype.bind || implementation;
 
-/**
- * Checks if `value` is array-like.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- */
-function isArrayLike(value) {
-  return value != null && isLength(getLength(value));
-}
+},{"./implementation":51}],53:[function(require,module,exports){
+'use strict';
 
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
-  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
-  length = length == null ? MAX_SAFE_INTEGER : length;
-  return value > -1 && value % 1 == 0 && value < length;
-}
+/* eslint complexity: [2, 17], max-statements: [2, 33] */
+module.exports = function hasSymbols() {
+	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
+	if (typeof Symbol.iterator === 'symbol') { return true; }
 
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- */
-function isLength(value) {
-  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+	var obj = {};
+	var sym = Symbol('test');
+	var symObj = Object(sym);
+	if (typeof sym === 'string') { return false; }
+
+	if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
+	if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
+
+	// temp disabled per https://github.com/ljharb/object.assign/issues/17
+	// if (sym instanceof Symbol) { return false; }
+	// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
+	// if (!(symObj instanceof Symbol)) { return false; }
+
+	// if (typeof Symbol.prototype.toString !== 'function') { return false; }
+	// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
+
+	var symVal = 42;
+	obj[sym] = symVal;
+	for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax
+	if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
+
+	if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
+
+	var syms = Object.getOwnPropertySymbols(obj);
+	if (syms.length !== 1 || syms[0] !== sym) { return false; }
+
+	if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
+
+	if (typeof Object.getOwnPropertyDescriptor === 'function') {
+		var descriptor = Object.getOwnPropertyDescriptor(obj, sym);
+		if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
+	}
+
+	return true;
+};
+
+},{}],54:[function(require,module,exports){
+(function (global){
+/*! https://mths.be/he v1.2.0 by @mathias | MIT license */
+;(function(root) {
+
+	// Detect free variables `exports`.
+	var freeExports = typeof exports == 'object' && exports;
+
+	// Detect free variable `module`.
+	var freeModule = typeof module == 'object' && module &&
+		module.exports == freeExports && module;
+
+	// Detect free variable `global`, from Node.js or Browserified code,
+	// and use it as `root`.
+	var freeGlobal = typeof global == 'object' && global;
+	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+		root = freeGlobal;
+	}
+
+	/*--------------------------------------------------------------------------*/
+
+	// All astral symbols.
+	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+	// All ASCII symbols (not just printable ASCII) except those listed in the
+	// first column of the overrides table.
+	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
+	var regexAsciiWhitelist = /[\x01-\x7F]/g;
+	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
+	// code points listed in the first column of the overrides table on
+	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
+	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
+
+	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
+	var encodeMap = 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','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
+
+	var regexEscape = /["&'<>`]/g;
+	var escapeMap = {
+		'"': '&quot;',
+		'&': '&amp;',
+		'\'': '&#x27;',
+		'<': '&lt;',
+		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
+		// following is not strictly necessary unless it’s part of a tag or an
+		// unquoted attribute value. We’re only escaping it to support those
+		// situations, and for XML support.
+		'>': '&gt;',
+		// In Internet Explorer ≤ 8, the backtick character can be used
+		// to break out of (un)quoted attribute values or HTML comments.
+		// See http://html5sec.org/#102, http://html5sec.org/#108, and
+		// http://html5sec.org/#133.
+		'`': '&#x60;'
+	};
+
+	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
+	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+	var regexDecode = /&(CounterClockwiseContourIntegral|DoubleLongLeftRightArrow|ClockwiseContourIntegral|NotNestedGreaterGreater|NotSquareSupersetEqual|DiacriticalDoubleAcute|NotRightTriangleEqual|NotSucceedsSlantEqual|NotPrecedesSlantEqual|CloseCurlyDoubleQuote|NegativeVeryThinSpace|DoubleContourIntegral|FilledVerySmallSquare|CapitalDifferentialD|OpenCurlyDoubleQuote|EmptyVerySmallSquare|NestedGreaterGreater|DoubleLongRightArrow|NotLeftTriangleEqual|NotGreaterSlantEqual|ReverseUpEquilibrium|DoubleLeftRightArrow|NotSquareSubsetEqual|NotDoubleVerticalBar|RightArrowLeftArrow|NotGreaterFullEqual|NotRightTriangleBar|SquareSupersetEqual|DownLeftRightVector|DoubleLongLeftArrow|leftrightsquigarrow|LeftArrowRightArrow|NegativeMediumSpace|blacktriangleright|RightDownVectorBar|PrecedesSlantEqual|RightDoubleBracket|SucceedsSlantEqual|NotLeftTriangleBar|RightTriangleEqual|SquareIntersection|RightDownTeeVector|ReverseEquilibrium|NegativeThickSpace|longleftrightarrow|Longleftrightarrow|LongLeftRightArrow|DownRightTeeVector|DownRightVectorBar|GreaterSlantEqual|SquareSubsetEqual|LeftDownVectorBar|LeftDoubleBracket|VerticalSeparator|rightleftharpoons|NotGreaterGreater|NotSquareSuperset|blacktriangleleft|blacktriangledown|NegativeThinSpace|LeftDownTeeVector|NotLessSlantEqual|leftrightharpoons|DoubleUpDownArrow|DoubleVerticalBar|LeftTriangleEqual|FilledSmallSquare|twoheadrightarrow|NotNestedLessLess|DownLeftTeeVector|DownLeftVectorBar|RightAngleBracket|NotTildeFullEqual|NotReverseElement|RightUpDownVector|DiacriticalTilde|NotSucceedsTilde|circlearrowright|NotPrecedesEqual|rightharpoondown|DoubleRightArrow|NotSucceedsEqual|NonBreakingSpace|NotRightTriangle|LessEqualGreater|RightUpTeeVector|LeftAngleBracket|GreaterFullEqual|DownArrowUpArrow|RightUpVectorBar|twoheadleftarrow|GreaterEqualLess|downharpoonright|RightTriangleBar|ntrianglerighteq|NotSupersetEqual|LeftUpDownVector|DiacriticalAcute|rightrightarrows|vartriangleright|UpArrowDownArrow|DiacriticalGrave|UnderParenthesis|EmptySmallSquare|LeftUpVectorBar|leftrightarrows|DownRightVector|downharpoonleft|trianglerighteq|ShortRightArrow|OverParenthesis|DoubleLeftArrow|DoubleDownArrow|NotSquareSubset|bigtriangledown|ntrianglelefteq|UpperRightArrow|curvearrowright|vartriangleleft|NotLeftTriangle|nleftrightarrow|LowerRightArrow|NotHumpDownHump|NotGreaterTilde|rightthreetimes|LeftUpTeeVector|NotGreaterEqual|straightepsilon|LeftTriangleBar|rightsquigarrow|ContourIntegral|rightleftarrows|CloseCurlyQuote|RightDownVector|LeftRightVector|nLeftrightarrow|leftharpoondown|circlearrowleft|SquareSuperset|OpenCurlyQuote|hookrightarrow|HorizontalLine|DiacriticalDot|NotLessGreater|ntriangleright|DoubleRightTee|InvisibleComma|InvisibleTimes|LowerLeftArrow|DownLeftVector|NotSubsetEqual|curvearrowleft|trianglelefteq|NotVerticalBar|TildeFullEqual|downdownarrows|NotGreaterLess|RightTeeVector|ZeroWidthSpace|looparrowright|LongRightArrow|doublebarwedge|ShortLeftArrow|ShortDownArrow|RightVectorBar|GreaterGreater|ReverseElement|rightharpoonup|LessSlantEqual|leftthreetimes|upharpoonright|rightarrowtail|LeftDownVector|Longrightarrow|NestedLessLess|UpperLeftArrow|nshortparallel|leftleftarrows|leftrightarrow|Leftrightarrow|LeftRightArrow|longrightarrow|upharpoonleft|RightArrowBar|ApplyFunction|LeftTeeVector|leftarrowtail|NotEqualTilde|varsubsetneqq|varsupsetneqq|RightTeeArrow|SucceedsEqual|SucceedsTilde|LeftVectorBar|SupersetEqual|hookleftarrow|DifferentialD|VerticalTilde|VeryThinSpace|blacktriangle|bigtriangleup|LessFullEqual|divideontimes|leftharpoonup|UpEquilibrium|ntriangleleft|RightTriangle|measuredangle|shortparallel|longleftarrow|Longleftarrow|LongLeftArrow|DoubleLeftTee|Poincareplane|PrecedesEqual|triangleright|DoubleUpArrow|RightUpVector|fallingdotseq|looparrowleft|PrecedesTilde|NotTildeEqual|NotTildeTilde|smallsetminus|Proportional|triangleleft|triangledown|UnderBracket|NotHumpEqual|exponentiale|ExponentialE|NotLessTilde|HilbertSpace|RightCeiling|blacklozenge|varsupsetneq|HumpDownHump|GreaterEqual|VerticalLine|LeftTeeArrow|NotLessEqual|DownTeeArrow|LeftTriangle|varsubsetneq|Intersection|NotCongruent|DownArrowBar|LeftUpVector|LeftArrowBar|risingdotseq|GreaterTilde|RoundImplies|SquareSubset|ShortUpArrow|NotSuperset|quaternions|precnapprox|backepsilon|preccurlyeq|OverBracket|blacksquare|MediumSpace|VerticalBar|circledcirc|circleddash|CircleMinus|CircleTimes|LessGreater|curlyeqprec|curlyeqsucc|diamondsuit|UpDownArrow|Updownarrow|RuleDelayed|Rrightarrow|updownarrow|RightVector|nRightarrow|nrightarrow|eqslantless|LeftCeiling|Equilibrium|SmallCircle|expectation|NotSucceeds|thickapprox|GreaterLess|SquareUnion|NotPrecedes|NotLessLess|straightphi|succnapprox|succcurlyeq|SubsetEqual|sqsupseteq|Proportion|Laplacetrf|ImaginaryI|supsetneqq|NotGreater|gtreqqless|NotElement|ThickSpace|TildeEqual|TildeTilde|Fouriertrf|rmoustache|EqualTilde|eqslantgtr|UnderBrace|LeftVector|UpArrowBar|nLeftarrow|nsubseteqq|subsetneqq|nsupseteqq|nleftarrow|succapprox|lessapprox|UpTeeArrow|upuparrows|curlywedge|lesseqqgtr|varepsilon|varnothing|RightFloor|c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|Fscr|gdot|gsim|Gscr|gscr|Gopf|gopf|gneq|Gdot|tosa|gnap|Topf|topf|geqq|toea|GJcy|gjcy|tint|gesl|mid|Sfr|ggg|top|ges|gla|glE|glj|geq|gne|gEl|gel|gnE|Gcy|gcy|gap|Tfr|tfr|Tcy|tcy|Hat|Tau|Ffr|tau|Tab|hfr|Hfr|ffr|Fcy|fcy|icy|Icy|iff|ETH|eth|ifr|Ifr|Eta|eta|int|Int|Sup|sup|ucy|Ucy|Sum|sum|jcy|ENG|ufr|Ufr|eng|Jcy|jfr|els|ell|egs|Efr|efr|Jfr|uml|kcy|Kcy|Ecy|ecy|kfr|Kfr|lap|Sub|sub|lat|lcy|Lcy|leg|Dot|dot|lEg|leq|les|squ|div|die|lfr|Lfr|lgE|Dfr|dfr|Del|deg|Dcy|dcy|lne|lnE|sol|loz|smt|Cup|lrm|cup|lsh|Lsh|sim|shy|map|Map|mcy|Mcy|mfr|Mfr|mho|gfr|Gfr|sfr|cir|Chi|chi|nap|Cfr|vcy|Vcy|cfr|Scy|scy|ncy|Ncy|vee|Vee|Cap|cap|nfr|scE|sce|Nfr|nge|ngE|nGg|vfr|Vfr|ngt|bot|nGt|nis|niv|Rsh|rsh|nle|nlE|bne|Bfr|bfr|nLl|nlt|nLt|Bcy|bcy|not|Not|rlm|wfr|Wfr|npr|nsc|num|ocy|ast|Ocy|ofr|xfr|Xfr|Ofr|ogt|ohm|apE|olt|Rho|ape|rho|Rfr|rfr|ord|REG|ang|reg|orv|And|and|AMP|Rcy|amp|Afr|ycy|Ycy|yen|yfr|Yfr|rcy|par|pcy|Pcy|pfr|Pfr|phi|Phi|afr|Acy|acy|zcy|Zcy|piv|acE|acd|zfr|Zfr|pre|prE|psi|Psi|qfr|Qfr|zwj|Or|ge|Gg|gt|gg|el|oS|lt|Lt|LT|Re|lg|gl|eg|ne|Im|it|le|DD|wp|wr|nu|Nu|dd|lE|Sc|sc|pi|Pi|ee|af|ll|Ll|rx|gE|xi|pm|Xi|ic|pr|Pr|in|ni|mp|mu|ac|Mu|or|ap|Gt|GT|ii);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)(?!;)([=a-zA-Z0-9]?)|&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+)/g;
+	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
+	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
+	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
+	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
+
+	/*--------------------------------------------------------------------------*/
+
+	var stringFromCharCode = String.fromCharCode;
+
+	var object = {};
+	var hasOwnProperty = object.hasOwnProperty;
+	var has = function(object, propertyName) {
+		return hasOwnProperty.call(object, propertyName);
+	};
+
+	var contains = function(array, value) {
+		var index = -1;
+		var length = array.length;
+		while (++index < length) {
+			if (array[index] == value) {
+				return true;
+			}
+		}
+		return false;
+	};
+
+	var merge = function(options, defaults) {
+		if (!options) {
+			return defaults;
+		}
+		var result = {};
+		var key;
+		for (key in defaults) {
+			// A `hasOwnProperty` check is not needed here, since only recognized
+			// option names are used anyway. Any others are ignored.
+			result[key] = has(options, key) ? options[key] : defaults[key];
+		}
+		return result;
+	};
+
+	// Modified version of `ucs2encode`; see https://mths.be/punycode.
+	var codePointToSymbol = function(codePoint, strict) {
+		var output = '';
+		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
+			// See issue #4:
+			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
+			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
+			// REPLACEMENT CHARACTER.”
+			if (strict) {
+				parseError('character reference outside the permissible Unicode range');
+			}
+			return '\uFFFD';
+		}
+		if (has(decodeMapNumeric, codePoint)) {
+			if (strict) {
+				parseError('disallowed character reference');
+			}
+			return decodeMapNumeric[codePoint];
+		}
+		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
+			parseError('disallowed character reference');
+		}
+		if (codePoint > 0xFFFF) {
+			codePoint -= 0x10000;
+			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
+			codePoint = 0xDC00 | codePoint & 0x3FF;
+		}
+		output += stringFromCharCode(codePoint);
+		return output;
+	};
+
+	var hexEscape = function(codePoint) {
+		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
+	};
+
+	var decEscape = function(codePoint) {
+		return '&#' + codePoint + ';';
+	};
+
+	var parseError = function(message) {
+		throw Error('Parse error: ' + message);
+	};
+
+	/*--------------------------------------------------------------------------*/
+
+	var encode = function(string, options) {
+		options = merge(options, encode.options);
+		var strict = options.strict;
+		if (strict && regexInvalidRawCodePoint.test(string)) {
+			parseError('forbidden code point');
+		}
+		var encodeEverything = options.encodeEverything;
+		var useNamedReferences = options.useNamedReferences;
+		var allowUnsafeSymbols = options.allowUnsafeSymbols;
+		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
+
+		var escapeBmpSymbol = function(symbol) {
+			return escapeCodePoint(symbol.charCodeAt(0));
+		};
+
+		if (encodeEverything) {
+			// Encode ASCII symbols.
+			string = string.replace(regexAsciiWhitelist, function(symbol) {
+				// Use named references if requested & possible.
+				if (useNamedReferences && has(encodeMap, symbol)) {
+					return '&' + encodeMap[symbol] + ';';
+				}
+				return escapeBmpSymbol(symbol);
+			});
+			// Shorten a few escapes that represent two symbols, of which at least one
+			// is within the ASCII range.
+			if (useNamedReferences) {
+				string = string
+					.replace(/&gt;\u20D2/g, '&nvgt;')
+					.replace(/&lt;\u20D2/g, '&nvlt;')
+					.replace(/&#x66;&#x6A;/g, '&fjlig;');
+			}
+			// Encode non-ASCII symbols.
+			if (useNamedReferences) {
+				// Encode non-ASCII symbols that can be replaced with a named reference.
+				string = string.replace(regexEncodeNonAscii, function(string) {
+					// Note: there is no need to check `has(encodeMap, string)` here.
+					return '&' + encodeMap[string] + ';';
+				});
+			}
+			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
+		} else if (useNamedReferences) {
+			// Apply named character references.
+			// Encode `<>"'&` using named character references.
+			if (!allowUnsafeSymbols) {
+				string = string.replace(regexEscape, function(string) {
+					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
+				});
+			}
+			// Shorten escapes that represent two symbols, of which at least one is
+			// `<>"'&`.
+			string = string
+				.replace(/&gt;\u20D2/g, '&nvgt;')
+				.replace(/&lt;\u20D2/g, '&nvlt;');
+			// Encode non-ASCII symbols that can be replaced with a named reference.
+			string = string.replace(regexEncodeNonAscii, function(string) {
+				// Note: there is no need to check `has(encodeMap, string)` here.
+				return '&' + encodeMap[string] + ';';
+			});
+		} else if (!allowUnsafeSymbols) {
+			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
+			// using named character references.
+			string = string.replace(regexEscape, escapeBmpSymbol);
+		}
+		return string
+			// Encode astral symbols.
+			.replace(regexAstralSymbols, function($0) {
+				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+				var high = $0.charCodeAt(0);
+				var low = $0.charCodeAt(1);
+				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
+				return escapeCodePoint(codePoint);
+			})
+			// Encode any remaining BMP symbols that are not printable ASCII symbols
+			// using a hexadecimal escape.
+			.replace(regexBmpWhitelist, escapeBmpSymbol);
+	};
+	// Expose default options (so they can be overridden globally).
+	encode.options = {
+		'allowUnsafeSymbols': false,
+		'encodeEverything': false,
+		'strict': false,
+		'useNamedReferences': false,
+		'decimal' : false
+	};
+
+	var decode = function(html, options) {
+		options = merge(options, decode.options);
+		var strict = options.strict;
+		if (strict && regexInvalidEntity.test(html)) {
+			parseError('malformed character reference');
+		}
+		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7, $8) {
+			var codePoint;
+			var semicolon;
+			var decDigits;
+			var hexDigits;
+			var reference;
+			var next;
+
+			if ($1) {
+				reference = $1;
+				// Note: there is no need to check `has(decodeMap, reference)`.
+				return decodeMap[reference];
+			}
+
+			if ($2) {
+				// Decode named character references without trailing `;`, e.g. `&amp`.
+				// This is only a parse error if it gets converted to `&`, or if it is
+				// followed by `=` in an attribute context.
+				reference = $2;
+				next = $3;
+				if (next && options.isAttributeValue) {
+					if (strict && next == '=') {
+						parseError('`&` did not start a character reference');
+					}
+					return $0;
+				} else {
+					if (strict) {
+						parseError(
+							'named character reference was not terminated by a semicolon'
+						);
+					}
+					// Note: there is no need to check `has(decodeMapLegacy, reference)`.
+					return decodeMapLegacy[reference] + (next || '');
+				}
+			}
+
+			if ($4) {
+				// Decode decimal escapes, e.g. `&#119558;`.
+				decDigits = $4;
+				semicolon = $5;
+				if (strict && !semicolon) {
+					parseError('character reference was not terminated by a semicolon');
+				}
+				codePoint = parseInt(decDigits, 10);
+				return codePointToSymbol(codePoint, strict);
+			}
+
+			if ($6) {
+				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
+				hexDigits = $6;
+				semicolon = $7;
+				if (strict && !semicolon) {
+					parseError('character reference was not terminated by a semicolon');
+				}
+				codePoint = parseInt(hexDigits, 16);
+				return codePointToSymbol(codePoint, strict);
+			}
+
+			// If we’re still here, `if ($7)` is implied; it’s an ambiguous
+			// ampersand for sure. https://mths.be/notes/ambiguous-ampersands
+			if (strict) {
+				parseError(
+					'named character reference was not terminated by a semicolon'
+				);
+			}
+			return $0;
+		});
+	};
+	// Expose default options (so they can be overridden globally).
+	decode.options = {
+		'isAttributeValue': false,
+		'strict': false
+	};
+
+	var escape = function(string) {
+		return string.replace(regexEscape, function($0) {
+			// Note: there is no need to check `has(escapeMap, $0)` here.
+			return escapeMap[$0];
+		});
+	};
+
+	/*--------------------------------------------------------------------------*/
+
+	var he = {
+		'version': '1.2.0',
+		'encode': encode,
+		'decode': decode,
+		'escape': escape,
+		'unescape': decode
+	};
+
+	// Some AMD build optimizers, like r.js, check for specific condition patterns
+	// like the following:
+	if (
+		false
+	) {
+		define(function() {
+			return he;
+		});
+	}	else if (freeExports && !freeExports.nodeType) {
+		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
+			freeModule.exports = he;
+		} else { // in Narwhal or RingoJS v0.7.0-
+			for (var key in he) {
+				has(he, key) && (freeExports[key] = he[key]);
+			}
+		}
+	} else { // in Rhino or a web browser
+		root.he = he;
+	}
+
+}(this));
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],55:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+  var e, m
+  var eLen = (nBytes * 8) - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var nBits = -7
+  var i = isLE ? (nBytes - 1) : 0
+  var d = isLE ? -1 : 1
+  var s = buffer[offset + i]
+
+  i += d
+
+  e = s & ((1 << (-nBits)) - 1)
+  s >>= (-nBits)
+  nBits += eLen
+  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
+
+  m = e & ((1 << (-nBits)) - 1)
+  e >>= (-nBits)
+  nBits += mLen
+  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
+
+  if (e === 0) {
+    e = 1 - eBias
+  } else if (e === eMax) {
+    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  } else {
+    m = m + Math.pow(2, mLen)
+    e = e - eBias
+  }
+  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
 }
 
-/**
- * A fallback implementation of `Object.keys` which creates an array of the
- * own enumerable property names of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function shimKeys(object) {
-  var props = keysIn(object),
-      propsLength = props.length,
-      length = propsLength && object.length;
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+  var e, m, c
+  var eLen = (nBytes * 8) - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+  var i = isLE ? 0 : (nBytes - 1)
+  var d = isLE ? 1 : -1
+  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+  value = Math.abs(value)
+
+  if (isNaN(value) || value === Infinity) {
+    m = isNaN(value) ? 1 : 0
+    e = eMax
+  } else {
+    e = Math.floor(Math.log(value) / Math.LN2)
+    if (value * (c = Math.pow(2, -e)) < 1) {
+      e--
+      c *= 2
+    }
+    if (e + eBias >= 1) {
+      value += rt / c
+    } else {
+      value += rt * Math.pow(2, 1 - eBias)
+    }
+    if (value * c >= 2) {
+      e++
+      c /= 2
+    }
+
+    if (e + eBias >= eMax) {
+      m = 0
+      e = eMax
+    } else if (e + eBias >= 1) {
+      m = ((value * c) - 1) * Math.pow(2, mLen)
+      e = e + eBias
+    } else {
+      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+      e = 0
+    }
+  }
 
-  var allowIndexes = !!length && isLength(length) &&
-    (isArray(object) || isArguments(object));
+  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
 
-  var index = -1,
-      result = [];
+  e = (e << mLen) | m
+  eLen += mLen
+  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
 
-  while (++index < propsLength) {
-    var key = props[index];
-    if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
-      result.push(key);
-    }
-  }
-  return result;
+  buffer[offset + i - d] |= s * 128
 }
 
-/**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(1);
- * // => false
- */
-function isObject(value) {
-  // Avoid a V8 JIT bug in Chrome 19-20.
-  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
+},{}],56:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    ctor.prototype = Object.create(superCtor.prototype, {
+      constructor: {
+        value: ctor,
+        enumerable: false,
+        writable: true,
+        configurable: true
+      }
+    });
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    var TempCtor = function () {}
+    TempCtor.prototype = superCtor.prototype
+    ctor.prototype = new TempCtor()
+    ctor.prototype.constructor = ctor
+  }
 }
 
-/**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
+},{}],57:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
  *
- * _.keys('hi');
- * // => ['0', '1']
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
  */
-var keys = !nativeKeys ? shimKeys : function(object) {
-  var Ctor = object == null ? undefined : object.constructor;
-  if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
-      (typeof object != 'function' && isArrayLike(object))) {
-    return shimKeys(object);
-  }
-  return isObject(object) ? nativeKeys(object) : [];
-};
 
-/**
- * Creates an array of the own and inherited enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keysIn(new Foo);
- * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
- */
-function keysIn(object) {
-  if (object == null) {
-    return [];
-  }
-  if (!isObject(object)) {
-    object = Object(object);
-  }
-  var length = object.length;
-  length = (length && isLength(length) &&
-    (isArray(object) || isArguments(object)) && length) || 0;
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+}
 
-  var Ctor = object.constructor,
-      index = -1,
-      isProto = typeof Ctor == 'function' && Ctor.prototype === object,
-      result = Array(length),
-      skipIndexes = length > 0;
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
 
-  while (++index < length) {
-    result[index] = (index + '');
-  }
-  for (var key in object) {
-    if (!(skipIndexes && isIndex(key, length)) &&
-        !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
-      result.push(key);
-    }
-  }
-  return result;
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
 }
 
-module.exports = keys;
+},{}],58:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
 
-},{"lodash._getnative":58,"lodash.isarguments":61,"lodash.isarray":62}],64:[function(require,module,exports){
+},{}],59:[function(require,module,exports){
 (function (process){
 var path = require('path');
 var fs = require('fs');
@@ -12229,18 +13753,18 @@ function mkdirP (p, opts, f, made) {
     else if (!opts || typeof opts !== 'object') {
         opts = { mode: opts };
     }
-
+    
     var mode = opts.mode;
     var xfs = opts.fs || fs;
-
+    
     if (mode === undefined) {
         mode = _0777 & (~process.umask());
     }
     if (!made) made = null;
-
+    
     var cb = f || function () {};
     p = path.resolve(p);
-
+    
     xfs.mkdir(p, mode, function (er) {
         if (!er) {
             made = made || p;
@@ -12273,10 +13797,10 @@ mkdirP.sync = function sync (p, opts, made) {
     if (!opts || typeof opts !== 'object') {
         opts = { mode: opts };
     }
-
+    
     var mode = opts.mode;
     var xfs = opts.fs || fs;
-
+    
     if (mode === undefined) {
         mode = _0777 & (~process.umask());
     }
@@ -12315,63 +13839,486 @@ mkdirP.sync = function sync (p, opts, made) {
 };
 
 }).call(this,require('_process'))
-},{"_process":67,"fs":42,"path":42}],65:[function(require,module,exports){
-exports.endianness = function () { return 'LE' };
+},{"_process":69,"fs":42,"path":42}],60:[function(require,module,exports){
+/**
+ * Helpers.
+ */
 
-exports.hostname = function () {
-    if (typeof location !== 'undefined') {
-        return location.hostname
-    }
-    else return '';
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isNaN(val) === false) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
+
+},{}],61:[function(require,module,exports){
+'use strict';
+
+var keysShim;
+if (!Object.keys) {
+	// modified from https://github.com/es-shims/es5-shim
+	var has = Object.prototype.hasOwnProperty;
+	var toStr = Object.prototype.toString;
+	var isArgs = require('./isArguments'); // eslint-disable-line global-require
+	var isEnumerable = Object.prototype.propertyIsEnumerable;
+	var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
+	var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
+	var dontEnums = [
+		'toString',
+		'toLocaleString',
+		'valueOf',
+		'hasOwnProperty',
+		'isPrototypeOf',
+		'propertyIsEnumerable',
+		'constructor'
+	];
+	var equalsConstructorPrototype = function (o) {
+		var ctor = o.constructor;
+		return ctor && ctor.prototype === o;
+	};
+	var excludedKeys = {
+		$applicationCache: true,
+		$console: true,
+		$external: true,
+		$frame: true,
+		$frameElement: true,
+		$frames: true,
+		$innerHeight: true,
+		$innerWidth: true,
+		$outerHeight: true,
+		$outerWidth: true,
+		$pageXOffset: true,
+		$pageYOffset: true,
+		$parent: true,
+		$scrollLeft: true,
+		$scrollTop: true,
+		$scrollX: true,
+		$scrollY: true,
+		$self: true,
+		$webkitIndexedDB: true,
+		$webkitStorageInfo: true,
+		$window: true
+	};
+	var hasAutomationEqualityBug = (function () {
+		/* global window */
+		if (typeof window === 'undefined') { return false; }
+		for (var k in window) {
+			try {
+				if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
+					try {
+						equalsConstructorPrototype(window[k]);
+					} catch (e) {
+						return true;
+					}
+				}
+			} catch (e) {
+				return true;
+			}
+		}
+		return false;
+	}());
+	var equalsConstructorPrototypeIfNotBuggy = function (o) {
+		/* global window */
+		if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+			return equalsConstructorPrototype(o);
+		}
+		try {
+			return equalsConstructorPrototype(o);
+		} catch (e) {
+			return false;
+		}
+	};
+
+	keysShim = function keys(object) {
+		var isObject = object !== null && typeof object === 'object';
+		var isFunction = toStr.call(object) === '[object Function]';
+		var isArguments = isArgs(object);
+		var isString = isObject && toStr.call(object) === '[object String]';
+		var theKeys = [];
+
+		if (!isObject && !isFunction && !isArguments) {
+			throw new TypeError('Object.keys called on a non-object');
+		}
+
+		var skipProto = hasProtoEnumBug && isFunction;
+		if (isString && object.length > 0 && !has.call(object, 0)) {
+			for (var i = 0; i < object.length; ++i) {
+				theKeys.push(String(i));
+			}
+		}
+
+		if (isArguments && object.length > 0) {
+			for (var j = 0; j < object.length; ++j) {
+				theKeys.push(String(j));
+			}
+		} else {
+			for (var name in object) {
+				if (!(skipProto && name === 'prototype') && has.call(object, name)) {
+					theKeys.push(String(name));
+				}
+			}
+		}
+
+		if (hasDontEnumBug) {
+			var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+
+			for (var k = 0; k < dontEnums.length; ++k) {
+				if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
+					theKeys.push(dontEnums[k]);
+				}
+			}
+		}
+		return theKeys;
+	};
+}
+module.exports = keysShim;
+
+},{"./isArguments":63}],62:[function(require,module,exports){
+'use strict';
+
+var slice = Array.prototype.slice;
+var isArgs = require('./isArguments');
+
+var origKeys = Object.keys;
+var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');
+
+var originalKeys = Object.keys;
+
+keysShim.shim = function shimObjectKeys() {
+	if (Object.keys) {
+		var keysWorksWithArguments = (function () {
+			// Safari 5.0 bug
+			var args = Object.keys(arguments);
+			return args && args.length === arguments.length;
+		}(1, 2));
+		if (!keysWorksWithArguments) {
+			Object.keys = function keys(object) { // eslint-disable-line func-name-matching
+				if (isArgs(object)) {
+					return originalKeys(slice.call(object));
+				}
+				return originalKeys(object);
+			};
+		}
+	} else {
+		Object.keys = keysShim;
+	}
+	return Object.keys || keysShim;
 };
 
-exports.loadavg = function () { return [] };
+module.exports = keysShim;
 
-exports.uptime = function () { return 0 };
+},{"./implementation":61,"./isArguments":63}],63:[function(require,module,exports){
+'use strict';
 
-exports.freemem = function () {
-    return Number.MAX_VALUE;
+var toStr = Object.prototype.toString;
+
+module.exports = function isArguments(value) {
+	var str = toStr.call(value);
+	var isArgs = str === '[object Arguments]';
+	if (!isArgs) {
+		isArgs = str !== '[object Array]' &&
+			value !== null &&
+			typeof value === 'object' &&
+			typeof value.length === 'number' &&
+			value.length >= 0 &&
+			toStr.call(value.callee) === '[object Function]';
+	}
+	return isArgs;
 };
 
-exports.totalmem = function () {
-    return Number.MAX_VALUE;
+},{}],64:[function(require,module,exports){
+'use strict';
+
+// modified from https://github.com/es-shims/es6-shim
+var keys = require('object-keys');
+var bind = require('function-bind');
+var canBeObject = function (obj) {
+	return typeof obj !== 'undefined' && obj !== null;
+};
+var hasSymbols = require('has-symbols/shams')();
+var toObject = Object;
+var push = bind.call(Function.call, Array.prototype.push);
+var propIsEnumerable = bind.call(Function.call, Object.prototype.propertyIsEnumerable);
+var originalGetSymbols = hasSymbols ? Object.getOwnPropertySymbols : null;
+
+module.exports = function assign(target, source1) {
+	if (!canBeObject(target)) { throw new TypeError('target must be an object'); }
+	var objTarget = toObject(target);
+	var s, source, i, props, syms, value, key;
+	for (s = 1; s < arguments.length; ++s) {
+		source = toObject(arguments[s]);
+		props = keys(source);
+		var getSymbols = hasSymbols && (Object.getOwnPropertySymbols || originalGetSymbols);
+		if (getSymbols) {
+			syms = getSymbols(source);
+			for (i = 0; i < syms.length; ++i) {
+				key = syms[i];
+				if (propIsEnumerable(source, key)) {
+					push(props, key);
+				}
+			}
+		}
+		for (i = 0; i < props.length; ++i) {
+			key = props[i];
+			value = source[key];
+			if (propIsEnumerable(source, key)) {
+				objTarget[key] = value;
+			}
+		}
+	}
+	return objTarget;
 };
 
-exports.cpus = function () { return [] };
+},{"function-bind":52,"has-symbols/shams":53,"object-keys":62}],65:[function(require,module,exports){
+'use strict';
 
-exports.type = function () { return 'Browser' };
+var defineProperties = require('define-properties');
 
-exports.release = function () {
-    if (typeof navigator !== 'undefined') {
-        return navigator.appVersion;
-    }
-    return '';
-};
+var implementation = require('./implementation');
+var getPolyfill = require('./polyfill');
+var shim = require('./shim');
+
+var polyfill = getPolyfill();
+
+defineProperties(polyfill, {
+	getPolyfill: getPolyfill,
+	implementation: implementation,
+	shim: shim
+});
+
+module.exports = polyfill;
+
+},{"./implementation":64,"./polyfill":66,"./shim":67,"define-properties":47}],66:[function(require,module,exports){
+'use strict';
 
-exports.networkInterfaces
-= exports.getNetworkInterfaces
-= function () { return {} };
+var implementation = require('./implementation');
 
-exports.arch = function () { return 'javascript' };
+var lacksProperEnumerationOrder = function () {
+	if (!Object.assign) {
+		return false;
+	}
+	// v8, specifically in node 4.x, has a bug with incorrect property enumeration order
+	// note: this does not detect the bug unless there's 20 characters
+	var str = 'abcdefghijklmnopqrst';
+	var letters = str.split('');
+	var map = {};
+	for (var i = 0; i < letters.length; ++i) {
+		map[letters[i]] = letters[i];
+	}
+	var obj = Object.assign({}, map);
+	var actual = '';
+	for (var k in obj) {
+		actual += k;
+	}
+	return str !== actual;
+};
 
-exports.platform = function () { return 'browser' };
+var assignHasPendingExceptions = function () {
+	if (!Object.assign || !Object.preventExtensions) {
+		return false;
+	}
+	// Firefox 37 still has "pending exception" logic in its Object.assign implementation,
+	// which is 72% slower than our shim, and Firefox 40's native implementation.
+	var thrower = Object.preventExtensions({ 1: 2 });
+	try {
+		Object.assign(thrower, 'xy');
+	} catch (e) {
+		return thrower[1] === 'y';
+	}
+	return false;
+};
 
-exports.tmpdir = exports.tmpDir = function () {
-    return '/tmp';
+module.exports = function getPolyfill() {
+	if (!Object.assign) {
+		return implementation;
+	}
+	if (lacksProperEnumerationOrder()) {
+		return implementation;
+	}
+	if (assignHasPendingExceptions()) {
+		return implementation;
+	}
+	return Object.assign;
 };
 
-exports.EOL = '\n';
+},{"./implementation":64}],67:[function(require,module,exports){
+'use strict';
+
+var define = require('define-properties');
+var getPolyfill = require('./polyfill');
+
+module.exports = function shimAssign() {
+	var polyfill = getPolyfill();
+	define(
+		Object,
+		{ assign: polyfill },
+		{ assign: function () { return Object.assign !== polyfill; } }
+	);
+	return polyfill;
+};
 
-},{}],66:[function(require,module,exports){
+},{"./polyfill":66,"define-properties":47}],68:[function(require,module,exports){
 (function (process){
 'use strict';
 
 if (!process.version ||
     process.version.indexOf('v0.') === 0 ||
     process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
-  module.exports = nextTick;
+  module.exports = { nextTick: nextTick };
 } else {
-  module.exports = process.nextTick;
+  module.exports = process
 }
 
 function nextTick(fn, arg1, arg2, arg3) {
@@ -12408,8 +14355,9 @@ function nextTick(fn, arg1, arg2, arg3) {
   }
 }
 
+
 }).call(this,require('_process'))
-},{"_process":67}],67:[function(require,module,exports){
+},{"_process":69}],69:[function(require,module,exports){
 // shim for using process in browser
 var process = module.exports = {};
 
@@ -12580,6 +14528,10 @@ process.off = noop;
 process.removeListener = noop;
 process.removeAllListeners = noop;
 process.emit = noop;
+process.prependListener = noop;
+process.prependOnceListener = noop;
+
+process.listeners = function (name) { return [] }
 
 process.binding = function (name) {
     throw new Error('process.binding is not supported');
@@ -12591,10 +14543,31 @@ process.chdir = function (dir) {
 };
 process.umask = function() { return 0; };
 
-},{}],68:[function(require,module,exports){
-module.exports = require("./lib/_stream_duplex.js")
+},{}],70:[function(require,module,exports){
+module.exports = require('./lib/_stream_duplex.js');
+
+},{"./lib/_stream_duplex.js":71}],71:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-},{"./lib/_stream_duplex.js":69}],69:[function(require,module,exports){
 // a duplex stream is just a stream that is both readable and writable.
 // Since JS doesn't have multiple prototypal inheritance, this class
 // prototypally inherits from Readable, and then parasitically from
@@ -12604,6 +14577,10 @@ module.exports = require("./lib/_stream_duplex.js")
 
 /*<replacement>*/
 
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
 var objectKeys = Object.keys || function (obj) {
   var keys = [];
   for (var key in obj) {
@@ -12614,10 +14591,6 @@ var objectKeys = Object.keys || function (obj) {
 
 module.exports = Duplex;
 
-/*<replacement>*/
-var processNextTick = require('process-nextick-args');
-/*</replacement>*/
-
 /*<replacement>*/
 var util = require('core-util-is');
 util.inherits = require('inherits');
@@ -12628,10 +14601,13 @@ var Writable = require('./_stream_writable');
 
 util.inherits(Duplex, Readable);
 
-var keys = objectKeys(Writable.prototype);
-for (var v = 0; v < keys.length; v++) {
-  var method = keys[v];
-  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+{
+  // avoid scope creep, the keys array can then be collected
+  var keys = objectKeys(Writable.prototype);
+  for (var v = 0; v < keys.length; v++) {
+    var method = keys[v];
+    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+  }
 }
 
 function Duplex(options) {
@@ -12650,6 +14626,16 @@ function Duplex(options) {
   this.once('end', onend);
 }
 
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
 // the no-half-open enforcer
 function onend() {
   // if we allow half-open state, or if the writable side ended,
@@ -12658,19 +14644,62 @@ function onend() {
 
   // no more data can be written.
   // But allow more writes to happen in this tick.
-  processNextTick(onEndNT, this);
+  pna.nextTick(onEndNT, this);
 }
 
 function onEndNT(self) {
   self.end();
 }
 
-function forEach(xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
   }
-}
-},{"./_stream_readable":71,"./_stream_writable":73,"core-util-is":45,"inherits":51,"process-nextick-args":66}],70:[function(require,module,exports){
+});
+
+Duplex.prototype._destroy = function (err, cb) {
+  this.push(null);
+  this.end();
+
+  pna.nextTick(cb, err);
+};
+},{"./_stream_readable":73,"./_stream_writable":75,"core-util-is":44,"inherits":56,"process-nextick-args":68}],72:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
 // a passthrough stream.
 // basically just the most minimal sort of Transform stream.
 // Every written chunk gets output as-is.
@@ -12697,18 +14726,44 @@ function PassThrough(options) {
 PassThrough.prototype._transform = function (chunk, encoding, cb) {
   cb(null, chunk);
 };
-},{"./_stream_transform":72,"core-util-is":45,"inherits":51}],71:[function(require,module,exports){
-(function (process){
+},{"./_stream_transform":74,"core-util-is":44,"inherits":56}],73:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
 'use strict';
 
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
 module.exports = Readable;
 
 /*<replacement>*/
-var processNextTick = require('process-nextick-args');
+var isArray = require('isarray');
 /*</replacement>*/
 
 /*<replacement>*/
-var isArray = require('isarray');
+var Duplex;
 /*</replacement>*/
 
 Readable.ReadableState = ReadableState;
@@ -12722,19 +14777,20 @@ var EElistenerCount = function (emitter, type) {
 /*</replacement>*/
 
 /*<replacement>*/
-var Stream;
-(function () {
-  try {
-    Stream = require('st' + 'ream');
-  } catch (_) {} finally {
-    if (!Stream) Stream = require('events').EventEmitter;
-  }
-})();
+var Stream = require('./internal/streams/stream');
 /*</replacement>*/
 
-var Buffer = require('buffer').Buffer;
 /*<replacement>*/
-var bufferShim = require('buffer-shims');
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
 /*</replacement>*/
 
 /*<replacement>*/
@@ -12753,42 +14809,53 @@ if (debugUtil && debugUtil.debuglog) {
 /*</replacement>*/
 
 var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
 var StringDecoder;
 
 util.inherits(Readable, Stream);
 
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
 function prependListener(emitter, event, fn) {
-  if (typeof emitter.prependListener === 'function') {
-    return emitter.prependListener(event, fn);
-  } else {
-    // This is a hack to make sure that our error handler is attached before any
-    // userland ones.  NEVER DO THIS. This is here only because this code needs
-    // to continue to work with older versions of Node.js that do not include
-    // the prependListener() method. The goal is to eventually remove this hack.
-    if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
-  }
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
+  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
+
+  // This is a hack to make sure that our error handler is attached before any
+  // userland ones.  NEVER DO THIS. This is here only because this code needs
+  // to continue to work with older versions of Node.js that do not include
+  // the prependListener() method. The goal is to eventually remove this hack.
+  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
 }
 
-var Duplex;
 function ReadableState(options, stream) {
   Duplex = Duplex || require('./_stream_duplex');
 
   options = options || {};
 
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
   // object stream flag. Used to make read(n) ignore n and to
   // make all the buffer merging and length checks go away
   this.objectMode = !!options.objectMode;
 
-  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
+  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
 
   // the point at which it stops calling _read() to fill the buffer
   // Note: 0 is a valid value, means "don't call _read preemptively ever"
   var hwm = options.highWaterMark;
+  var readableHwm = options.readableHighWaterMark;
   var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
 
   // cast to ints.
-  this.highWaterMark = ~ ~this.highWaterMark;
+  this.highWaterMark = Math.floor(this.highWaterMark);
 
   // A linked list is used to store data chunks instead of an array because the
   // linked list can remove elements from the beginning faster than
@@ -12802,10 +14869,10 @@ function ReadableState(options, stream) {
   this.endEmitted = false;
   this.reading = false;
 
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
+  // a flag to be able to tell if the event 'readable'/'data' is emitted
+  // immediately, or on a later tick.  We set this to true at first, because
+  // any actions that shouldn't happen until "later" should generally also
+  // not happen before the first read call.
   this.sync = true;
 
   // whenever we return null, then we set a flag to say
@@ -12815,15 +14882,14 @@ function ReadableState(options, stream) {
   this.readableListening = false;
   this.resumeScheduled = false;
 
+  // has it been destroyed
+  this.destroyed = false;
+
   // Crypto is kind of old and crusty.  Historically, its default string
   // encoding is 'binary' so we have to make this configurable.
   // Everything else in the universe uses 'utf8', though.
   this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-  // when piping, we only care about 'readable' events that happen
-  // after read()ing all the bytes and not getting any pushback.
-  this.ranOut = false;
-
   // the number of writers that are awaiting a drain event in .pipe()s
   this.awaitDrain = 0;
 
@@ -12839,7 +14905,6 @@ function ReadableState(options, stream) {
   }
 }
 
-var Duplex;
 function Readable(options) {
   Duplex = Duplex || require('./_stream_duplex');
 
@@ -12850,87 +14915,129 @@ function Readable(options) {
   // legacy
   this.readable = true;
 
-  if (options && typeof options.read === 'function') this._read = options.read;
+  if (options) {
+    if (typeof options.read === 'function') this._read = options.read;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+  }
 
   Stream.call(this);
 }
 
+Object.defineProperty(Readable.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._readableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+  }
+});
+
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+  this.push(null);
+  cb(err);
+};
+
 // Manually shove something into the read() buffer.
 // This returns true if the highWaterMark has not been hit yet,
 // similar to how Writable.write() returns true if you should
 // write() some more.
 Readable.prototype.push = function (chunk, encoding) {
   var state = this._readableState;
-
-  if (!state.objectMode && typeof chunk === 'string') {
-    encoding = encoding || state.defaultEncoding;
-    if (encoding !== state.encoding) {
-      chunk = bufferShim.from(chunk, encoding);
-      encoding = '';
+  var skipChunkCheck;
+
+  if (!state.objectMode) {
+    if (typeof chunk === 'string') {
+      encoding = encoding || state.defaultEncoding;
+      if (encoding !== state.encoding) {
+        chunk = Buffer.from(chunk, encoding);
+        encoding = '';
+      }
+      skipChunkCheck = true;
     }
+  } else {
+    skipChunkCheck = true;
   }
 
-  return readableAddChunk(this, state, chunk, encoding, false);
+  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
 };
 
 // Unshift should *always* be something directly out of read()
 Readable.prototype.unshift = function (chunk) {
-  var state = this._readableState;
-  return readableAddChunk(this, state, chunk, '', true);
-};
-
-Readable.prototype.isPaused = function () {
-  return this._readableState.flowing === false;
+  return readableAddChunk(this, chunk, null, true, false);
 };
 
-function readableAddChunk(stream, state, chunk, encoding, addToFront) {
-  var er = chunkInvalid(state, chunk);
-  if (er) {
-    stream.emit('error', er);
-  } else if (chunk === null) {
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+  var state = stream._readableState;
+  if (chunk === null) {
     state.reading = false;
     onEofChunk(stream, state);
-  } else if (state.objectMode || chunk && chunk.length > 0) {
-    if (state.ended && !addToFront) {
-      var e = new Error('stream.push() after EOF');
-      stream.emit('error', e);
-    } else if (state.endEmitted && addToFront) {
-      var _e = new Error('stream.unshift() after end event');
-      stream.emit('error', _e);
-    } else {
-      var skipAdd;
-      if (state.decoder && !addToFront && !encoding) {
-        chunk = state.decoder.write(chunk);
-        skipAdd = !state.objectMode && chunk.length === 0;
+  } else {
+    var er;
+    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+    if (er) {
+      stream.emit('error', er);
+    } else if (state.objectMode || chunk && chunk.length > 0) {
+      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+        chunk = _uint8ArrayToBuffer(chunk);
       }
 
-      if (!addToFront) state.reading = false;
-
-      // Don't add to the buffer if we've decoded to an empty string chunk and
-      // we're not in object mode
-      if (!skipAdd) {
-        // if we want the data now, just emit it.
-        if (state.flowing && state.length === 0 && !state.sync) {
-          stream.emit('data', chunk);
-          stream.read(0);
+      if (addToFront) {
+        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
+      } else if (state.ended) {
+        stream.emit('error', new Error('stream.push() after EOF'));
+      } else {
+        state.reading = false;
+        if (state.decoder && !encoding) {
+          chunk = state.decoder.write(chunk);
+          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
         } else {
-          // update the buffer info.
-          state.length += state.objectMode ? 1 : chunk.length;
-          if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
-
-          if (state.needReadable) emitReadable(stream);
+          addChunk(stream, state, chunk, false);
         }
       }
-
-      maybeReadMore(stream, state);
+    } else if (!addToFront) {
+      state.reading = false;
     }
-  } else if (!addToFront) {
-    state.reading = false;
   }
 
   return needMoreData(state);
 }
 
+function addChunk(stream, state, chunk, addToFront) {
+  if (state.flowing && state.length === 0 && !state.sync) {
+    stream.emit('data', chunk);
+    stream.read(0);
+  } else {
+    // update the buffer info.
+    state.length += state.objectMode ? 1 : chunk.length;
+    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
+
+    if (state.needReadable) emitReadable(stream);
+  }
+  maybeReadMore(stream, state);
+}
+
+function chunkInvalid(state, chunk) {
+  var er;
+  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  return er;
+}
+
 // if it's past the high water mark, we can push in some more.
 // Also, if we have no data yet, we can stand some
 // more bytes.  This is to work around cases where hwm=0,
@@ -12942,6 +15049,10 @@ function needMoreData(state) {
   return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
 }
 
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
+};
+
 // backwards compatibility.
 Readable.prototype.setEncoding = function (enc) {
   if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
@@ -13090,14 +15201,6 @@ Readable.prototype.read = function (n) {
   return ret;
 };
 
-function chunkInvalid(state, chunk) {
-  var er = null;
-  if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  return er;
-}
-
 function onEofChunk(stream, state) {
   if (state.ended) return;
   if (state.decoder) {
@@ -13122,7 +15225,7 @@ function emitReadable(stream) {
   if (!state.emittedReadable) {
     debug('emitReadable', state.flowing);
     state.emittedReadable = true;
-    if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
+    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
   }
 }
 
@@ -13141,7 +15244,7 @@ function emitReadable_(stream) {
 function maybeReadMore(stream, state) {
   if (!state.readingMore) {
     state.readingMore = true;
-    processNextTick(maybeReadMore_, stream, state);
+    pna.nextTick(maybeReadMore_, stream, state);
   }
 }
 
@@ -13162,7 +15265,7 @@ function maybeReadMore_(stream, state) {
 // for virtual (non-string, non-buffer) streams, "length" is somewhat
 // arbitrary, and perhaps not very meaningful.
 Readable.prototype._read = function (n) {
-  this.emit('error', new Error('not implemented'));
+  this.emit('error', new Error('_read() is not implemented'));
 };
 
 Readable.prototype.pipe = function (dest, pipeOpts) {
@@ -13185,14 +15288,17 @@ Readable.prototype.pipe = function (dest, pipeOpts) {
 
   var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
 
-  var endFn = doEnd ? onend : cleanup;
-  if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
+  var endFn = doEnd ? onend : unpipe;
+  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
 
   dest.on('unpipe', onunpipe);
-  function onunpipe(readable) {
+  function onunpipe(readable, unpipeInfo) {
     debug('onunpipe');
     if (readable === src) {
-      cleanup();
+      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+        unpipeInfo.hasUnpiped = true;
+        cleanup();
+      }
     }
   }
 
@@ -13218,7 +15324,7 @@ Readable.prototype.pipe = function (dest, pipeOpts) {
     dest.removeListener('error', onerror);
     dest.removeListener('unpipe', onunpipe);
     src.removeListener('end', onend);
-    src.removeListener('end', cleanup);
+    src.removeListener('end', unpipe);
     src.removeListener('data', ondata);
 
     cleanedUp = true;
@@ -13311,6 +15417,7 @@ function pipeOnDrain(src) {
 
 Readable.prototype.unpipe = function (dest) {
   var state = this._readableState;
+  var unpipeInfo = { hasUnpiped: false };
 
   // if we're not piping anywhere, then do nothing.
   if (state.pipesCount === 0) return this;
@@ -13326,7 +15433,7 @@ Readable.prototype.unpipe = function (dest) {
     state.pipes = null;
     state.pipesCount = 0;
     state.flowing = false;
-    if (dest) dest.emit('unpipe', this);
+    if (dest) dest.emit('unpipe', this, unpipeInfo);
     return this;
   }
 
@@ -13340,20 +15447,20 @@ Readable.prototype.unpipe = function (dest) {
     state.pipesCount = 0;
     state.flowing = false;
 
-    for (var _i = 0; _i < len; _i++) {
-      dests[_i].emit('unpipe', this);
+    for (var i = 0; i < len; i++) {
+      dests[i].emit('unpipe', this, unpipeInfo);
     }return this;
   }
 
   // try to find the right one.
-  var i = indexOf(state.pipes, dest);
-  if (i === -1) return this;
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
 
-  state.pipes.splice(i, 1);
+  state.pipes.splice(index, 1);
   state.pipesCount -= 1;
   if (state.pipesCount === 1) state.pipes = state.pipes[0];
 
-  dest.emit('unpipe', this);
+  dest.emit('unpipe', this, unpipeInfo);
 
   return this;
 };
@@ -13372,9 +15479,9 @@ Readable.prototype.on = function (ev, fn) {
       state.readableListening = state.needReadable = true;
       state.emittedReadable = false;
       if (!state.reading) {
-        processNextTick(nReadingNextTick, this);
+        pna.nextTick(nReadingNextTick, this);
       } else if (state.length) {
-        emitReadable(this, state);
+        emitReadable(this);
       }
     }
   }
@@ -13403,7 +15510,7 @@ Readable.prototype.resume = function () {
 function resume(stream, state) {
   if (!state.resumeScheduled) {
     state.resumeScheduled = true;
-    processNextTick(resume_, stream, state);
+    pna.nextTick(resume_, stream, state);
   }
 }
 
@@ -13440,18 +15547,19 @@ function flow(stream) {
 // This is *not* part of the readable stream interface.
 // It is an ugly unfortunate mess of history.
 Readable.prototype.wrap = function (stream) {
+  var _this = this;
+
   var state = this._readableState;
   var paused = false;
 
-  var self = this;
   stream.on('end', function () {
     debug('wrapped end');
     if (state.decoder && !state.ended) {
       var chunk = state.decoder.end();
-      if (chunk && chunk.length) self.push(chunk);
+      if (chunk && chunk.length) _this.push(chunk);
     }
 
-    self.push(null);
+    _this.push(null);
   });
 
   stream.on('data', function (chunk) {
@@ -13461,7 +15569,7 @@ Readable.prototype.wrap = function (stream) {
     // don't skip over falsy values in objectMode
     if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
 
-    var ret = self.push(chunk);
+    var ret = _this.push(chunk);
     if (!ret) {
       paused = true;
       stream.pause();
@@ -13481,14 +15589,13 @@ Readable.prototype.wrap = function (stream) {
   }
 
   // proxy certain important events.
-  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
-  forEach(events, function (ev) {
-    stream.on(ev, self.emit.bind(self, ev));
-  });
+  for (var n = 0; n < kProxyEvents.length; n++) {
+    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
+  }
 
   // when we try to consume some more bytes, simply unpause the
   // underlying stream.
-  self._read = function (n) {
+  this._read = function (n) {
     debug('wrapped _read', n);
     if (paused) {
       paused = false;
@@ -13496,9 +15603,19 @@ Readable.prototype.wrap = function (stream) {
     }
   };
 
-  return self;
+  return this;
 };
 
+Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._readableState.highWaterMark;
+  }
+});
+
 // exposed for testing purposes only.
 Readable._fromList = fromList;
 
@@ -13576,7 +15693,7 @@ function copyFromBufferString(n, list) {
 // This function is designed to be inlinable, so please take care when making
 // changes to the function body.
 function copyFromBuffer(n, list) {
-  var ret = bufferShim.allocUnsafe(n);
+  var ret = Buffer.allocUnsafe(n);
   var p = list.head;
   var c = 1;
   p.data.copy(ret);
@@ -13611,7 +15728,7 @@ function endReadable(stream) {
 
   if (!state.endEmitted) {
     state.ended = true;
-    processNextTick(endReadableNT, state, stream);
+    pna.nextTick(endReadableNT, state, stream);
   }
 }
 
@@ -13624,20 +15741,35 @@ function endReadableNT(state, stream) {
   }
 }
 
-function forEach(xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
-  }
-}
-
 function indexOf(xs, x) {
   for (var i = 0, l = xs.length; i < l; i++) {
     if (xs[i] === x) return i;
   }
   return -1;
 }
-}).call(this,require('_process'))
-},{"./_stream_duplex":69,"./internal/streams/BufferList":74,"_process":67,"buffer":44,"buffer-shims":43,"core-util-is":45,"events":48,"inherits":51,"isarray":53,"process-nextick-args":66,"string_decoder/":80,"util":40}],72:[function(require,module,exports){
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":71,"./internal/streams/BufferList":76,"./internal/streams/destroy":77,"./internal/streams/stream":78,"_process":69,"core-util-is":44,"events":50,"inherits":56,"isarray":58,"process-nextick-args":68,"safe-buffer":83,"string_decoder/":85,"util":40}],74:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
 // a transform stream is a readable/writable stream where you do
 // something with the data.  Sometimes it's called a "filter",
 // but that's not a great name for it, since that implies a thing where
@@ -13693,37 +15825,28 @@ util.inherits = require('inherits');
 
 util.inherits(Transform, Duplex);
 
-function TransformState(stream) {
-  this.afterTransform = function (er, data) {
-    return afterTransform(stream, er, data);
-  };
-
-  this.needTransform = false;
-  this.transforming = false;
-  this.writecb = null;
-  this.writechunk = null;
-  this.writeencoding = null;
-}
-
-function afterTransform(stream, er, data) {
-  var ts = stream._transformState;
+function afterTransform(er, data) {
+  var ts = this._transformState;
   ts.transforming = false;
 
   var cb = ts.writecb;
 
-  if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));
+  if (!cb) {
+    return this.emit('error', new Error('write callback called multiple times'));
+  }
 
   ts.writechunk = null;
   ts.writecb = null;
 
-  if (data !== null && data !== undefined) stream.push(data);
+  if (data != null) // single equals check for both `null` and `undefined`
+    this.push(data);
 
   cb(er);
 
-  var rs = stream._readableState;
+  var rs = this._readableState;
   rs.reading = false;
   if (rs.needReadable || rs.length < rs.highWaterMark) {
-    stream._read(rs.highWaterMark);
+    this._read(rs.highWaterMark);
   }
 }
 
@@ -13732,10 +15855,14 @@ function Transform(options) {
 
   Duplex.call(this, options);
 
-  this._transformState = new TransformState(this);
-
-  // when the writable side finishes, then flush out anything remaining.
-  var stream = this;
+  this._transformState = {
+    afterTransform: afterTransform.bind(this),
+    needTransform: false,
+    transforming: false,
+    writecb: null,
+    writechunk: null,
+    writeencoding: null
+  };
 
   // start out asking for a readable event once data is transformed.
   this._readableState.needReadable = true;
@@ -13751,11 +15878,20 @@ function Transform(options) {
     if (typeof options.flush === 'function') this._flush = options.flush;
   }
 
-  this.once('prefinish', function () {
-    if (typeof this._flush === 'function') this._flush(function (er) {
-      done(stream, er);
-    });else done(stream);
-  });
+  // When the writable side finishes, then flush out anything remaining.
+  this.on('prefinish', prefinish);
+}
+
+function prefinish() {
+  var _this = this;
+
+  if (typeof this._flush === 'function') {
+    this._flush(function (er, data) {
+      done(_this, er, data);
+    });
+  } else {
+    done(this, null, null);
+  }
 }
 
 Transform.prototype.push = function (chunk, encoding) {
@@ -13774,7 +15910,7 @@ Transform.prototype.push = function (chunk, encoding) {
 // an error, then that'll put the hurt on the whole operation.  If you
 // never call cb(), then you'll never get another chunk.
 Transform.prototype._transform = function (chunk, encoding, cb) {
-  throw new Error('Not implemented');
+  throw new Error('_transform() is not implemented');
 };
 
 Transform.prototype._write = function (chunk, encoding, cb) {
@@ -13804,36 +15940,92 @@ Transform.prototype._read = function (n) {
   }
 };
 
-function done(stream, er) {
+Transform.prototype._destroy = function (err, cb) {
+  var _this2 = this;
+
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+    _this2.emit('close');
+  });
+};
+
+function done(stream, er, data) {
   if (er) return stream.emit('error', er);
 
+  if (data != null) // single equals check for both `null` and `undefined`
+    stream.push(data);
+
   // if there's nothing in the write buffer, then that means
   // that nothing more will ever be provided
-  var ws = stream._writableState;
-  var ts = stream._transformState;
+  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
 
-  if (ws.length) throw new Error('Calling transform done when ws.length != 0');
-
-  if (ts.transforming) throw new Error('Calling transform done when still transforming');
+  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
 
   return stream.push(null);
 }
-},{"./_stream_duplex":69,"core-util-is":45,"inherits":51}],73:[function(require,module,exports){
-(function (process){
+},{"./_stream_duplex":71,"core-util-is":44,"inherits":56}],75:[function(require,module,exports){
+(function (process,global,setImmediate){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
 // A bit simpler than readable streams.
 // Implement an async ._write(chunk, encoding, cb), and it'll handle all
 // the drain event emission and buffering.
 
 'use strict';
 
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
 module.exports = Writable;
 
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
+}
+/* </replacement> */
+
 /*<replacement>*/
-var processNextTick = require('process-nextick-args');
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
 /*</replacement>*/
 
 /*<replacement>*/
-var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+var Duplex;
 /*</replacement>*/
 
 Writable.WritableState = WritableState;
@@ -13849,55 +16041,63 @@ var internalUtil = {
 };
 /*</replacement>*/
 
-/*<replacement>*/
-var Stream;
-(function () {
-  try {
-    Stream = require('st' + 'ream');
-  } catch (_) {} finally {
-    if (!Stream) Stream = require('events').EventEmitter;
-  }
-})();
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
 /*</replacement>*/
 
-var Buffer = require('buffer').Buffer;
 /*<replacement>*/
-var bufferShim = require('buffer-shims');
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
 /*</replacement>*/
 
+var destroyImpl = require('./internal/streams/destroy');
+
 util.inherits(Writable, Stream);
 
 function nop() {}
 
-function WriteReq(chunk, encoding, cb) {
-  this.chunk = chunk;
-  this.encoding = encoding;
-  this.callback = cb;
-  this.next = null;
-}
-
-var Duplex;
 function WritableState(options, stream) {
   Duplex = Duplex || require('./_stream_duplex');
 
   options = options || {};
 
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
   // object stream flag to indicate whether or not this stream
   // contains buffers or objects.
   this.objectMode = !!options.objectMode;
 
-  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
+  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
 
   // the point at which write() starts returning false
   // Note: 0 is a valid value, means that we always return false if
   // the entire buffer is not flushed immediately on write()
   var hwm = options.highWaterMark;
+  var writableHwm = options.writableHighWaterMark;
   var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
 
   // cast to ints.
-  this.highWaterMark = ~ ~this.highWaterMark;
+  this.highWaterMark = Math.floor(this.highWaterMark);
 
+  // if _final has been called
+  this.finalCalled = false;
+
+  // drain event flag.
   this.needDrain = false;
   // at the start of calling end()
   this.ending = false;
@@ -13906,6 +16106,9 @@ function WritableState(options, stream) {
   // when 'finish' is emitted
   this.finished = false;
 
+  // has it been destroyed
+  this.destroyed = false;
+
   // should we decode strings into buffers before passing to _write?
   // this is here so that some node-core streams can optimize string
   // handling at a lower level.
@@ -13972,7 +16175,7 @@ function WritableState(options, stream) {
   this.corkedRequestsFree = new CorkedRequest(this);
 }
 
-WritableState.prototype.getBuffer = function writableStateGetBuffer() {
+WritableState.prototype.getBuffer = function getBuffer() {
   var current = this.bufferedRequest;
   var out = [];
   while (current) {
@@ -13987,18 +16190,43 @@ WritableState.prototype.getBuffer = function writableStateGetBuffer() {
     Object.defineProperty(WritableState.prototype, 'buffer', {
       get: internalUtil.deprecate(function () {
         return this.getBuffer();
-      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.')
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
     });
   } catch (_) {}
 })();
 
-var Duplex;
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function (object) {
+      if (realHasInstance.call(this, object)) return true;
+      if (this !== Writable) return false;
+
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function (object) {
+    return object instanceof this;
+  };
+}
+
 function Writable(options) {
   Duplex = Duplex || require('./_stream_duplex');
 
-  // Writable ctor is applied to Duplexes, though they're not
-  // instanceof Writable, they're instanceof Readable.
-  if (!(this instanceof Writable) && !(this instanceof Duplex)) return new Writable(options);
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
+
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+    return new Writable(options);
+  }
 
   this._writableState = new WritableState(options, this);
 
@@ -14009,6 +16237,10 @@ function Writable(options) {
     if (typeof options.write === 'function') this._write = options.write;
 
     if (typeof options.writev === 'function') this._writev = options.writev;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+
+    if (typeof options.final === 'function') this._final = options.final;
   }
 
   Stream.call(this);
@@ -14023,28 +16255,24 @@ function writeAfterEnd(stream, cb) {
   var er = new Error('write after end');
   // TODO: defer error events consistently everywhere, not just the cb
   stream.emit('error', er);
-  processNextTick(cb, er);
+  pna.nextTick(cb, er);
 }
 
-// If we get something that is not a buffer, string, null, or undefined,
-// and we're not in objectMode, then that's an error.
-// Otherwise stream chunks are all considered to be of length=1, and the
-// watermarks determine how many objects to keep in the buffer, rather than
-// how many bytes or characters.
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
 function validChunk(stream, state, chunk, cb) {
   var valid = true;
   var er = false;
-  // Always throw error if a null is written
-  // if we are not in object mode then throw
-  // if it is not a buffer, string, or undefined.
+
   if (chunk === null) {
     er = new TypeError('May not write null values to stream');
-  } else if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
     er = new TypeError('Invalid non-string/buffer chunk');
   }
   if (er) {
     stream.emit('error', er);
-    processNextTick(cb, er);
+    pna.nextTick(cb, er);
     valid = false;
   }
   return valid;
@@ -14053,19 +16281,24 @@ function validChunk(stream, state, chunk, cb) {
 Writable.prototype.write = function (chunk, encoding, cb) {
   var state = this._writableState;
   var ret = false;
+  var isBuf = !state.objectMode && _isUint8Array(chunk);
+
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
 
   if (typeof encoding === 'function') {
     cb = encoding;
     encoding = null;
   }
 
-  if (Buffer.isBuffer(chunk)) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
 
   if (typeof cb !== 'function') cb = nop;
 
-  if (state.ended) writeAfterEnd(this, cb);else if (validChunk(this, state, chunk, cb)) {
+  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
     state.pendingcb++;
-    ret = writeOrBuffer(this, state, chunk, encoding, cb);
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
   }
 
   return ret;
@@ -14097,18 +16330,33 @@ Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
 
 function decodeChunk(state, chunk, encoding) {
   if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
-    chunk = bufferShim.from(chunk, encoding);
+    chunk = Buffer.from(chunk, encoding);
   }
   return chunk;
 }
 
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
 // if we're already writing something, then just put this
 // in the queue, and wait our turn.  Otherwise, call _write
 // If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, chunk, encoding, cb) {
-  chunk = decodeChunk(state, chunk, encoding);
-
-  if (Buffer.isBuffer(chunk)) encoding = 'buffer';
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
   var len = state.objectMode ? 1 : chunk.length;
 
   state.length += len;
@@ -14119,7 +16367,13 @@ function writeOrBuffer(stream, state, chunk, encoding, cb) {
 
   if (state.writing || state.corked) {
     var last = state.lastBufferedRequest;
-    state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
     if (last) {
       last.next = state.lastBufferedRequest;
     } else {
@@ -14144,10 +16398,26 @@ function doWrite(stream, state, writev, len, chunk, encoding, cb) {
 
 function onwriteError(stream, state, sync, er, cb) {
   --state.pendingcb;
-  if (sync) processNextTick(cb, er);else cb(er);
 
-  stream._writableState.errorEmitted = true;
-  stream.emit('error', er);
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    pna.nextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    pna.nextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
 }
 
 function onwriteStateUpdate(state) {
@@ -14177,8 +16447,8 @@ function onwrite(stream, er) {
       asyncWrite(afterWrite, stream, state, finished, cb);
       /*</replacement>*/
     } else {
-        afterWrite(stream, state, finished, cb);
-      }
+      afterWrite(stream, state, finished, cb);
+    }
   }
 }
 
@@ -14212,11 +16482,14 @@ function clearBuffer(stream, state) {
     holder.entry = entry;
 
     var count = 0;
+    var allBuffers = true;
     while (entry) {
       buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
       entry = entry.next;
       count += 1;
     }
+    buffer.allBuffers = allBuffers;
 
     doWrite(stream, state, true, state.length, buffer, '', holder.finish);
 
@@ -14230,6 +16503,7 @@ function clearBuffer(stream, state) {
     } else {
       state.corkedRequestsFree = new CorkedRequest(state);
     }
+    state.bufferedRequestCount = 0;
   } else {
     // Slow case, write chunks one-by-one
     while (entry) {
@@ -14240,6 +16514,7 @@ function clearBuffer(stream, state) {
 
       doWrite(stream, state, false, len, chunk, encoding, cb);
       entry = entry.next;
+      state.bufferedRequestCount--;
       // if we didn't call the onwrite immediately, then
       // it means that we need to wait until it does.
       // also, that means that the chunk and cb are currently
@@ -14252,13 +16527,12 @@ function clearBuffer(stream, state) {
     if (entry === null) state.lastBufferedRequest = null;
   }
 
-  state.bufferedRequestCount = 0;
   state.bufferedRequest = entry;
   state.bufferProcessing = false;
 }
 
 Writable.prototype._write = function (chunk, encoding, cb) {
-  cb(new Error('not implemented'));
+  cb(new Error('_write() is not implemented'));
 };
 
 Writable.prototype._writev = null;
@@ -14290,23 +16564,37 @@ Writable.prototype.end = function (chunk, encoding, cb) {
 function needFinish(state) {
   return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
 }
-
-function prefinish(stream, state) {
-  if (!state.prefinished) {
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      stream.emit('error', err);
+    }
     state.prefinished = true;
     stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function') {
+      state.pendingcb++;
+      state.finalCalled = true;
+      pna.nextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
   }
 }
 
 function finishMaybe(stream, state) {
   var need = needFinish(state);
   if (need) {
+    prefinish(stream, state);
     if (state.pendingcb === 0) {
-      prefinish(stream, state);
       state.finished = true;
       stream.emit('finish');
-    } else {
-      prefinish(stream, state);
     }
   }
   return need;
@@ -14316,132 +16604,296 @@ function endWritable(stream, state, cb) {
   state.ending = true;
   finishMaybe(stream, state);
   if (cb) {
-    if (state.finished) processNextTick(cb);else stream.once('finish', cb);
+    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
   }
   state.ended = true;
   stream.writable = false;
 }
 
-// It seems a linked list but it is not
-// there will be only 2 of these for each stream
-function CorkedRequest(state) {
-  var _this = this;
-
-  this.next = null;
-  this.entry = null;
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+  if (state.corkedRequestsFree) {
+    state.corkedRequestsFree.next = corkReq;
+  } else {
+    state.corkedRequestsFree = corkReq;
+  }
+}
 
-  this.finish = function (err) {
-    var entry = _this.entry;
-    _this.entry = null;
-    while (entry) {
-      var cb = entry.callback;
-      state.pendingcb--;
-      cb(err);
-      entry = entry.next;
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  get: function () {
+    if (this._writableState === undefined) {
+      return false;
     }
-    if (state.corkedRequestsFree) {
-      state.corkedRequestsFree.next = _this;
-    } else {
-      state.corkedRequestsFree = _this;
+    return this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
+
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  this.end();
+  cb(err);
+};
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
+},{"./_stream_duplex":71,"./internal/streams/destroy":77,"./internal/streams/stream":78,"_process":69,"core-util-is":44,"inherits":56,"process-nextick-args":68,"safe-buffer":83,"timers":86,"util-deprecate":87}],76:[function(require,module,exports){
+'use strict';
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Buffer = require('safe-buffer').Buffer;
+var util = require('util');
+
+function copyBuffer(src, target, offset) {
+  src.copy(target, offset);
+}
+
+module.exports = function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
+
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
+
+  BufferList.prototype.push = function push(v) {
+    var entry = { data: v, next: null };
+    if (this.length > 0) this.tail.next = entry;else this.head = entry;
+    this.tail = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.unshift = function unshift(v) {
+    var entry = { data: v, next: this.head };
+    if (this.length === 0) this.tail = entry;
+    this.head = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.shift = function shift() {
+    if (this.length === 0) return;
+    var ret = this.head.data;
+    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+    --this.length;
+    return ret;
+  };
+
+  BufferList.prototype.clear = function clear() {
+    this.head = this.tail = null;
+    this.length = 0;
+  };
+
+  BufferList.prototype.join = function join(s) {
+    if (this.length === 0) return '';
+    var p = this.head;
+    var ret = '' + p.data;
+    while (p = p.next) {
+      ret += s + p.data;
+    }return ret;
+  };
+
+  BufferList.prototype.concat = function concat(n) {
+    if (this.length === 0) return Buffer.alloc(0);
+    if (this.length === 1) return this.head.data;
+    var ret = Buffer.allocUnsafe(n >>> 0);
+    var p = this.head;
+    var i = 0;
+    while (p) {
+      copyBuffer(p.data, ret, i);
+      i += p.data.length;
+      p = p.next;
     }
+    return ret;
+  };
+
+  return BufferList;
+}();
+
+if (util && util.inspect && util.inspect.custom) {
+  module.exports.prototype[util.inspect.custom] = function () {
+    var obj = util.inspect({ length: this.length });
+    return this.constructor.name + ' ' + obj;
   };
 }
-}).call(this,require('_process'))
-},{"./_stream_duplex":69,"_process":67,"buffer":44,"buffer-shims":43,"core-util-is":45,"events":48,"inherits":51,"process-nextick-args":66,"util-deprecate":81}],74:[function(require,module,exports){
+},{"safe-buffer":83,"util":40}],77:[function(require,module,exports){
 'use strict';
 
-var Buffer = require('buffer').Buffer;
 /*<replacement>*/
-var bufferShim = require('buffer-shims');
+
+var pna = require('process-nextick-args');
 /*</replacement>*/
 
-module.exports = BufferList;
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
 
-function BufferList() {
-  this.head = null;
-  this.tail = null;
-  this.length = 0;
-}
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
 
-BufferList.prototype.push = function (v) {
-  var entry = { data: v, next: null };
-  if (this.length > 0) this.tail.next = entry;else this.head = entry;
-  this.tail = entry;
-  ++this.length;
-};
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+      pna.nextTick(emitErrorNT, this, err);
+    }
+    return this;
+  }
 
-BufferList.prototype.unshift = function (v) {
-  var entry = { data: v, next: this.head };
-  if (this.length === 0) this.tail = entry;
-  this.head = entry;
-  ++this.length;
-};
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
 
-BufferList.prototype.shift = function () {
-  if (this.length === 0) return;
-  var ret = this.head.data;
-  if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
-  --this.length;
-  return ret;
-};
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
 
-BufferList.prototype.clear = function () {
-  this.head = this.tail = null;
-  this.length = 0;
-};
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
 
-BufferList.prototype.join = function (s) {
-  if (this.length === 0) return '';
-  var p = this.head;
-  var ret = '' + p.data;
-  while (p = p.next) {
-    ret += s + p.data;
-  }return ret;
-};
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      pna.nextTick(emitErrorNT, _this, err);
+      if (_this._writableState) {
+        _this._writableState.errorEmitted = true;
+      }
+    } else if (cb) {
+      cb(err);
+    }
+  });
 
-BufferList.prototype.concat = function (n) {
-  if (this.length === 0) return bufferShim.alloc(0);
-  if (this.length === 1) return this.head.data;
-  var ret = bufferShim.allocUnsafe(n >>> 0);
-  var p = this.head;
-  var i = 0;
-  while (p) {
-    p.data.copy(ret, i);
-    i += p.data.length;
-    p = p.next;
+  return this;
+}
+
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
   }
-  return ret;
+
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
+
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
+
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy
 };
-},{"buffer":44,"buffer-shims":43}],75:[function(require,module,exports){
-module.exports = require("./lib/_stream_passthrough.js")
+},{"process-nextick-args":68}],78:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
 
-},{"./lib/_stream_passthrough.js":70}],76:[function(require,module,exports){
-(function (process){
-var Stream = (function (){
-  try {
-    return require('st' + 'ream'); // hack to fix a circular dependency issue when used with browserify
-  } catch(_){}
-}());
+},{"events":50}],79:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
+
+},{"./readable":80}],80:[function(require,module,exports){
 exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = Stream || exports;
+exports.Stream = exports;
 exports.Readable = exports;
 exports.Writable = require('./lib/_stream_writable.js');
 exports.Duplex = require('./lib/_stream_duplex.js');
 exports.Transform = require('./lib/_stream_transform.js');
 exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-if (!process.browser && process.env.READABLE_STREAM === 'disable' && Stream) {
-  module.exports = Stream;
+},{"./lib/_stream_duplex.js":71,"./lib/_stream_passthrough.js":72,"./lib/_stream_readable.js":73,"./lib/_stream_transform.js":74,"./lib/_stream_writable.js":75}],81:[function(require,module,exports){
+module.exports = require('./readable').Transform
+
+},{"./readable":80}],82:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
+
+},{"./lib/_stream_writable.js":75}],83:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
 }
 
-}).call(this,require('_process'))
-},{"./lib/_stream_duplex.js":69,"./lib/_stream_passthrough.js":70,"./lib/_stream_readable.js":71,"./lib/_stream_transform.js":72,"./lib/_stream_writable.js":73,"_process":67}],77:[function(require,module,exports){
-module.exports = require("./lib/_stream_transform.js")
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
 
-},{"./lib/_stream_transform.js":72}],78:[function(require,module,exports){
-module.exports = require("./lib/_stream_writable.js")
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
 
-},{"./lib/_stream_writable.js":73}],79:[function(require,module,exports){
+},{"buffer":43}],84:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -14570,7 +17022,7 @@ Stream.prototype.pipe = function(dest, options) {
   return dest;
 };
 
-},{"events":48,"inherits":51,"readable-stream/duplex.js":68,"readable-stream/passthrough.js":75,"readable-stream/readable.js":76,"readable-stream/transform.js":77,"readable-stream/writable.js":78}],80:[function(require,module,exports){
+},{"events":50,"inherits":56,"readable-stream/duplex.js":70,"readable-stream/passthrough.js":79,"readable-stream/readable.js":80,"readable-stream/transform.js":81,"readable-stream/writable.js":82}],85:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -14592,208 +17044,361 @@ Stream.prototype.pipe = function(dest, options) {
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-var Buffer = require('buffer').Buffer;
+'use strict';
+
+/*<replacement>*/
 
-var isBufferEncoding = Buffer.isEncoding
-  || function(encoding) {
-       switch (encoding && encoding.toLowerCase()) {
-         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
-         default: return false;
-       }
-     }
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
 
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
+  }
+};
 
-function assertEncoding(encoding) {
-  if (encoding && !isBufferEncoding(encoding)) {
-    throw new Error('Unknown encoding: ' + encoding);
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
   }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
 }
 
 // StringDecoder provides an interface for efficiently splitting a series of
 // buffers into a series of JS strings without breaking apart multi-byte
-// characters. CESU-8 is handled as part of the UTF-8 encoding.
-//
-// @TODO Handling all encodings inside a single object makes it very difficult
-// to reason about this code, so it should be split up in the future.
-// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
-// points as used by CESU-8.
-var StringDecoder = exports.StringDecoder = function(encoding) {
-  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
-  assertEncoding(encoding);
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
   switch (this.encoding) {
-    case 'utf8':
-      // CESU-8 represents each of Surrogate Pair by 3-bytes
-      this.surrogateSize = 3;
-      break;
-    case 'ucs2':
     case 'utf16le':
-      // UTF-16 represents each of Surrogate Pair by 2-bytes
-      this.surrogateSize = 2;
-      this.detectIncompleteChar = utf16DetectIncompleteChar;
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
       break;
     case 'base64':
-      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
-      this.surrogateSize = 3;
-      this.detectIncompleteChar = base64DetectIncompleteChar;
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
       break;
     default:
-      this.write = passThroughWrite;
+      this.write = simpleWrite;
+      this.end = simpleEnd;
       return;
   }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
 
-  // Enough space to store all bytes of a single character. UTF-8 needs 4
-  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
-  this.charBuffer = new Buffer(6);
-  // Number of bytes received for the current incomplete multi-byte character.
-  this.charReceived = 0;
-  // Number of bytes expected for the current incomplete multi-byte character.
-  this.charLength = 0;
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
 };
 
+StringDecoder.prototype.end = utf8End;
 
-// write decodes the given buffer and returns it as JS string that is
-// guaranteed to not contain any partial multi-byte characters. Any partial
-// character found at the end of the buffer is buffered up, and will be
-// returned when calling write again with the remaining bytes.
-//
-// Note: Converting a Buffer containing an orphan surrogate to a String
-// currently works, but converting a String to a Buffer (via `new Buffer`, or
-// Buffer#write) will replace incomplete surrogates with the unicode
-// replacement character. See https://codereview.chromium.org/121173009/ .
-StringDecoder.prototype.write = function(buffer) {
-  var charStr = '';
-  // if our last write ended with an incomplete multibyte character
-  while (this.charLength) {
-    // determine how many remaining bytes this buffer has to offer for this char
-    var available = (buffer.length >= this.charLength - this.charReceived) ?
-        this.charLength - this.charReceived :
-        buffer.length;
-
-    // add the new bytes to the char buffer
-    buffer.copy(this.charBuffer, this.charReceived, 0, available);
-    this.charReceived += available;
-
-    if (this.charReceived < this.charLength) {
-      // still not enough chars in this buffer? wait for more ...
-      return '';
-    }
-
-    // remove bytes belonging to the current character from the buffer
-    buffer = buffer.slice(available, buffer.length);
-
-    // get the character that was split
-    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
-
-    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
-    var charCode = charStr.charCodeAt(charStr.length - 1);
-    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
-      this.charLength += this.surrogateSize;
-      charStr = '';
-      continue;
-    }
-    this.charReceived = this.charLength = 0;
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
 
-    // if there are no more bytes in this buffer, just emit our char
-    if (buffer.length === 0) {
-      return charStr;
-    }
-    break;
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
   }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
 
-  // determine and set charLength / charReceived
-  this.detectIncompleteChar(buffer);
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte. If an invalid byte is detected, -2 is returned.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return byte >> 6 === 0x02 ? -1 : -2;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
 
-  var end = buffer.length;
-  if (this.charLength) {
-    // buffer the incomplete character bytes we got
-    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
-    end -= this.charReceived;
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd';
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd';
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd';
+      }
+    }
   }
+}
 
-  charStr += buffer.toString(this.encoding, 0, end);
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
+
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
+
+// For UTF-8, a replacement character is added when ending on a partial
+// character.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd';
+  return r;
+}
+
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
 
-  var end = charStr.length - 1;
-  var charCode = charStr.charCodeAt(end);
-  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
-  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
-    var size = this.surrogateSize;
-    this.charLength += size;
-    this.charReceived += size;
-    this.charBuffer.copy(this.charBuffer, size, 0, size);
-    buffer.copy(this.charBuffer, 0, 0, size);
-    return charStr.substring(0, end);
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
   }
+  return r;
+}
 
-  // or just emit the charStr
-  return charStr;
-};
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
+  }
+  return buf.toString('base64', i, buf.length - n);
+}
 
-// detectIncompleteChar determines if there is an incomplete UTF-8 character at
-// the end of the given buffer. If so, it sets this.charLength to the byte
-// length that character, and sets this.charReceived to the number of bytes
-// that are available for this character.
-StringDecoder.prototype.detectIncompleteChar = function(buffer) {
-  // determine how many bytes we have to check at the end of this buffer
-  var i = (buffer.length >= 3) ? 3 : buffer.length;
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
 
-  // Figure out if one of the last i bytes of our buffer announces an
-  // incomplete char.
-  for (; i > 0; i--) {
-    var c = buffer[buffer.length - i];
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
+}
 
-    // See http://en.wikipedia.org/wiki/UTF-8#Description
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":83}],86:[function(require,module,exports){
+(function (setImmediate,clearImmediate){
+var nextTick = require('process/browser.js').nextTick;
+var apply = Function.prototype.apply;
+var slice = Array.prototype.slice;
+var immediateIds = {};
+var nextImmediateId = 0;
 
-    // 110XXXXX
-    if (i == 1 && c >> 5 == 0x06) {
-      this.charLength = 2;
-      break;
-    }
+// DOM APIs, for completeness
 
-    // 1110XXXX
-    if (i <= 2 && c >> 4 == 0x0E) {
-      this.charLength = 3;
-      break;
-    }
+exports.setTimeout = function() {
+  return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
+};
+exports.setInterval = function() {
+  return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
+};
+exports.clearTimeout =
+exports.clearInterval = function(timeout) { timeout.close(); };
 
-    // 11110XXX
-    if (i <= 3 && c >> 3 == 0x1E) {
-      this.charLength = 4;
-      break;
-    }
-  }
-  this.charReceived = i;
+function Timeout(id, clearFn) {
+  this._id = id;
+  this._clearFn = clearFn;
+}
+Timeout.prototype.unref = Timeout.prototype.ref = function() {};
+Timeout.prototype.close = function() {
+  this._clearFn.call(window, this._id);
 };
 
-StringDecoder.prototype.end = function(buffer) {
-  var res = '';
-  if (buffer && buffer.length)
-    res = this.write(buffer);
+// Does not start the time, just sets up the members needed.
+exports.enroll = function(item, msecs) {
+  clearTimeout(item._idleTimeoutId);
+  item._idleTimeout = msecs;
+};
 
-  if (this.charReceived) {
-    var cr = this.charReceived;
-    var buf = this.charBuffer;
-    var enc = this.encoding;
-    res += buf.slice(0, cr).toString(enc);
-  }
+exports.unenroll = function(item) {
+  clearTimeout(item._idleTimeoutId);
+  item._idleTimeout = -1;
+};
 
-  return res;
+exports._unrefActive = exports.active = function(item) {
+  clearTimeout(item._idleTimeoutId);
+
+  var msecs = item._idleTimeout;
+  if (msecs >= 0) {
+    item._idleTimeoutId = setTimeout(function onTimeout() {
+      if (item._onTimeout)
+        item._onTimeout();
+    }, msecs);
+  }
 };
 
-function passThroughWrite(buffer) {
-  return buffer.toString(this.encoding);
-}
+// That's not how node.js implements it but the exposed api is the same.
+exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
+  var id = nextImmediateId++;
+  var args = arguments.length < 2 ? false : slice.call(arguments, 1);
 
-function utf16DetectIncompleteChar(buffer) {
-  this.charReceived = buffer.length % 2;
-  this.charLength = this.charReceived ? 2 : 0;
-}
+  immediateIds[id] = true;
 
-function base64DetectIncompleteChar(buffer) {
-  this.charReceived = buffer.length % 3;
-  this.charLength = this.charReceived ? 3 : 0;
-}
+  nextTick(function onNextTick() {
+    if (immediateIds[id]) {
+      // fn.call() is faster so we optimize for the common use-case
+      // @see http://jsperf.com/call-apply-segu
+      if (args) {
+        fn.apply(null, args);
+      } else {
+        fn.call(null);
+      }
+      // Prevent ids from leaking
+      exports.clearImmediate(id);
+    }
+  });
+
+  return id;
+};
 
-},{"buffer":44}],81:[function(require,module,exports){
+exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
+  delete immediateIds[id];
+};
+}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
+},{"process/browser.js":69,"timers":86}],87:[function(require,module,exports){
 (function (global){
 
 /**
@@ -14864,16 +17469,14 @@ function config (name) {
 }
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],82:[function(require,module,exports){
-arguments[4][51][0].apply(exports,arguments)
-},{"dup":51}],83:[function(require,module,exports){
+},{}],88:[function(require,module,exports){
 module.exports = function isBuffer(arg) {
   return arg && typeof arg === 'object'
     && typeof arg.copy === 'function'
     && typeof arg.fill === 'function'
     && typeof arg.readUInt8 === 'function';
 }
-},{}],84:[function(require,module,exports){
+},{}],89:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -15463,4 +18066,11 @@ function hasOwnProperty(obj, prop) {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":83,"_process":67,"inherits":82}]},{},[1]);
+},{"./support/isBuffer":88,"_process":69,"inherits":56}],90:[function(require,module,exports){
+module.exports={
+  "name": "mocha",
+  "version": "6.1.4",
+  "homepage": "https://mochajs.org/",
+  "notifyLogo": "https://ibin.co/4QuRuGjXvl36.png"
+}
+},{}]},{},[1]);

From f47d01f2827f69dde571c0fe06159e8e99a1de96 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 15 Jul 2019 18:15:22 +0900
Subject: [PATCH 39/85] 3.15.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 810944c..7dc28b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.14.0",
+  "version": "3.15.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index b42060b..20cc840 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.14.0",
+  "version": "3.15.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 219a96f8b636d7288a51d1b483a824c8239df75e Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Tue, 27 Aug 2019 21:37:06 +0900
Subject: [PATCH 40/85] Update dev dependencies.

---
 package-lock.json | 299 +++++++++++++++++++++++-----------------------
 1 file changed, 150 insertions(+), 149 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 7dc28b9..f190dc0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
-      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
       "dev": true,
       "requires": {
         "@babel/highlight": "^7.0.0"
@@ -25,21 +25,21 @@
       }
     },
     "@types/node": {
-      "version": "12.6.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.6.2.tgz",
-      "integrity": "sha512-gojym4tX0FWeV2gsW4Xmzo5wxGjXGm550oVUII7f7G5o4BV6c7DBdiG1RRQd+y1bvqRyYtPfMK85UM95vsapqQ==",
+      "version": "12.7.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.7.2.tgz",
+      "integrity": "sha512-dyYO+f6ihZEtNPDcWNR1fkoTDf3zAK3lAABDze3mz6POyIercH0lEUawUFXlG8xaQZmm1yEBON/4TsYv/laDYg==",
       "dev": true
     },
     "acorn": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.2.0.tgz",
-      "integrity": "sha512-8oe72N3WPMjA+2zVG71Ia0nXZ8DpQH+QyyHO+p06jT8eg8FGG3FbcUIi8KziHlAfheJQZeoqbvq1mQSQHXKYLw==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.0.0.tgz",
+      "integrity": "sha512-PaF/MduxijYYt7unVGRuds1vBC9bFxbNf+VWqhOClfdgy7RlVkQqt610ig1/yxTgsDIfW1cWDel5EBbOy3jdtQ==",
       "dev": true
     },
     "acorn-jsx": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.1.tgz",
-      "integrity": "sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==",
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
+      "integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
       "dev": true
     },
     "ajv": {
@@ -109,9 +109,9 @@
       "dev": true
     },
     "async-limiter": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==",
       "dev": true
     },
     "balanced-match": {
@@ -278,9 +278,9 @@
       "dev": true
     },
     "comment-parser": {
-      "version": "0.5.5",
-      "resolved": "https://registry.npmjs.org/comment-parser/-/comment-parser-0.5.5.tgz",
-      "integrity": "sha512-oB3TinFT+PV3p8UwDQt71+HkG03+zwPwikDlKU6ZDmql6QX2zFlQ+G0GGSDqyJhdZi4PSlzFBm+YJ+ebOX3Vgw==",
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/comment-parser/-/comment-parser-0.6.2.tgz",
+      "integrity": "sha512-Wdms0Q8d4vvb2Yk72OwZjwNWtMklbC5Re7lD9cjCP/AG1fhocmc0TrxGBBAXPLy8fZQPrfHGgyygwI0lA7pbzA==",
       "dev": true
     },
     "concat-map": {
@@ -290,20 +290,20 @@
       "dev": true
     },
     "concurrently": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-4.1.1.tgz",
-      "integrity": "sha512-48+FE5RJ0qc8azwKv4keVQWlni1hZeSjcWr8shBelOBtBHcKj1aJFM9lHRiSc1x7lq416pkvsqfBMhSRja+Lhw==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-4.1.2.tgz",
+      "integrity": "sha512-Kim9SFrNr2jd8/0yNYqDTFALzUX1tvimmwFWxmp/D4mRI+kbqIIwE2RkBDrxS2ic25O1UgQMI5AtBqdtX3ynYg==",
       "dev": true,
       "requires": {
-        "chalk": "^2.4.1",
-        "date-fns": "^1.23.0",
-        "lodash": "^4.17.10",
+        "chalk": "^2.4.2",
+        "date-fns": "^1.30.1",
+        "lodash": "^4.17.15",
         "read-pkg": "^4.0.1",
-        "rxjs": "^6.3.3",
+        "rxjs": "^6.5.2",
         "spawn-command": "^0.0.2-1",
         "supports-color": "^4.5.0",
-        "tree-kill": "^1.1.0",
-        "yargs": "^12.0.1"
+        "tree-kill": "^1.2.1",
+        "yargs": "^12.0.5"
       }
     },
     "corser": {
@@ -448,9 +448,9 @@
       "dev": true
     },
     "eslint": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.0.1.tgz",
-      "integrity": "sha512-DyQRaMmORQ+JsWShYsSg4OPTjY56u1nCjAmICrE8vLWqyLKxhFXOthwMj1SA8xwfrv0CofLNVnqbfyhwCkaO0w==",
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.2.2.tgz",
+      "integrity": "sha512-mf0elOkxHbdyGX1IJEUsNBzCDdyoUgljF3rRlgfyYh0pwGnreLc0jjD6ZuleOibjmnUWZLY2eXwSooeOgGJ2jw==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -459,64 +459,88 @@
         "cross-spawn": "^6.0.5",
         "debug": "^4.0.1",
         "doctrine": "^3.0.0",
-        "eslint-scope": "^4.0.3",
-        "eslint-utils": "^1.3.1",
-        "eslint-visitor-keys": "^1.0.0",
-        "espree": "^6.0.0",
+        "eslint-scope": "^5.0.0",
+        "eslint-utils": "^1.4.2",
+        "eslint-visitor-keys": "^1.1.0",
+        "espree": "^6.1.1",
         "esquery": "^1.0.1",
         "esutils": "^2.0.2",
         "file-entry-cache": "^5.0.1",
         "functional-red-black-tree": "^1.0.1",
-        "glob-parent": "^3.1.0",
+        "glob-parent": "^5.0.0",
         "globals": "^11.7.0",
         "ignore": "^4.0.6",
         "import-fresh": "^3.0.0",
         "imurmurhash": "^0.1.4",
-        "inquirer": "^6.2.2",
+        "inquirer": "^6.4.1",
         "is-glob": "^4.0.0",
         "js-yaml": "^3.13.1",
         "json-stable-stringify-without-jsonify": "^1.0.1",
         "levn": "^0.3.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.14",
         "minimatch": "^3.0.4",
         "mkdirp": "^0.5.1",
         "natural-compare": "^1.4.0",
         "optionator": "^0.8.2",
         "progress": "^2.0.0",
         "regexpp": "^2.0.1",
-        "semver": "^5.5.1",
-        "strip-ansi": "^4.0.0",
-        "strip-json-comments": "^2.0.1",
+        "semver": "^6.1.2",
+        "strip-ansi": "^5.2.0",
+        "strip-json-comments": "^3.0.1",
         "table": "^5.2.3",
-        "text-table": "^0.2.0"
+        "text-table": "^0.2.0",
+        "v8-compile-cache": "^2.0.3"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "dev": true
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
       }
     },
     "eslint-config-blueimp": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/eslint-config-blueimp/-/eslint-config-blueimp-1.3.0.tgz",
-      "integrity": "sha512-6JPmtGdIamQ1AN9X9ejR9pa5kY2aS8s1EJss4ZWj4jLcEmJEGdehQAxSI9H7kT6uUpKPbEx5g5QhpQqCASxwSA==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-blueimp/-/eslint-config-blueimp-1.4.0.tgz",
+      "integrity": "sha512-OWTLOSmsjDglgNvKKtb0t3iRPpyzFvXszXJkSS1w5oqkgVmFaKiNeoU6qOyZF2Q78rIog77RgIhzyA387b+7qA==",
       "dev": true
     },
     "eslint-config-prettier": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-6.0.0.tgz",
-      "integrity": "sha512-vDrcCFE3+2ixNT5H83g28bO/uYAwibJxerXPj+E7op4qzBCsAV36QfvdAyVOoNxKAH2Os/e01T/2x++V0LPukA==",
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-6.1.0.tgz",
+      "integrity": "sha512-k9fny9sPjIBQ2ftFTesJV21Rg4R/7a7t7LCtZVrYQiHEp8Nnuk3EGaDmsKSAnsPj0BYcgB2zxzHa2NTkIxcOLg==",
       "dev": true,
       "requires": {
         "get-stdin": "^6.0.0"
       }
     },
     "eslint-plugin-jsdoc": {
-      "version": "15.5.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-15.5.1.tgz",
-      "integrity": "sha512-ZE2UyTfikhkS9XatRo+UhTFJVrW0XIpK19XQdlFkgpq/BWcewRPYZdO1nJ3r5Z/o4oITfASCPZMArW9Wjhiukg==",
+      "version": "15.8.3",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-15.8.3.tgz",
+      "integrity": "sha512-p2O6SYetuSD5gWV04HHevIfp2WfimXReYwINuB4iC33hm1jrYoP+t2XbJtCBYvjhoRjjw8w4NfnyZKixte1fug==",
       "dev": true,
       "requires": {
-        "comment-parser": "^0.5.5",
+        "comment-parser": "^0.6.2",
         "debug": "^4.1.1",
-        "flat-map-polyfill": "^0.3.8",
         "jsdoctypeparser": "5.0.1",
-        "lodash": "^4.17.14",
+        "lodash": "^4.17.15",
+        "object.entries-ponyfill": "^1.0.1",
         "regextras": "^0.6.1"
       }
     },
@@ -530,9 +554,9 @@
       }
     },
     "eslint-scope": {
-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-4.0.3.tgz",
-      "integrity": "sha512-p7VutNr1O/QrxysMo3E45FjYDTeXBy0iTltPFNSqKAIfjDSXC+4dj+qfyuD8bfAXrW/y6lW3O76VaYNPKfpKrg==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.0.0.tgz",
+      "integrity": "sha512-oYrhJW7S0bxAFDvWqzvMPRm6pcgcnWc4QnofCAqRTRfQC0JcwenzGglTtsLyIuuWFfkqDG9vz67cnttSd53djw==",
       "dev": true,
       "requires": {
         "esrecurse": "^4.1.0",
@@ -540,29 +564,29 @@
       }
     },
     "eslint-utils": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/eslint-utils/-/eslint-utils-1.4.0.tgz",
-      "integrity": "sha512-7ehnzPaP5IIEh1r1tkjuIrxqhNkzUJa9z3R92tLJdZIVdWaczEhr3EbhGtsMrVxi1KeR8qA7Off6SWc5WNQqyQ==",
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/eslint-utils/-/eslint-utils-1.4.2.tgz",
+      "integrity": "sha512-eAZS2sEUMlIeCjBeubdj45dmBHQwPHWyBcT1VSYB7o9x9WRRqKxyUoiXlRjyAwzN7YEzHJlYg0NmzDRWx6GP4Q==",
       "dev": true,
       "requires": {
         "eslint-visitor-keys": "^1.0.0"
       }
     },
     "eslint-visitor-keys": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
-      "integrity": "sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz",
+      "integrity": "sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==",
       "dev": true
     },
     "espree": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/espree/-/espree-6.0.0.tgz",
-      "integrity": "sha512-lJvCS6YbCn3ImT3yKkPe0+tJ+mH6ljhGNjHQH9mRtiO6gjhVAOhVXW1yjnwqGwTkK3bGbye+hb00nFNmu0l/1Q==",
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-6.1.1.tgz",
+      "integrity": "sha512-EYbr8XZUhWbYCqQRW0duU5LxzL5bETN6AjKBGy1302qqzPaCH10QbRg3Wvco79Z8x9WbiE8HYB4e75xl6qUYvQ==",
       "dev": true,
       "requires": {
-        "acorn": "^6.0.7",
-        "acorn-jsx": "^5.0.0",
-        "eslint-visitor-keys": "^1.0.0"
+        "acorn": "^7.0.0",
+        "acorn-jsx": "^5.0.2",
+        "eslint-visitor-keys": "^1.1.0"
       }
     },
     "esprima": {
@@ -590,15 +614,15 @@
       }
     },
     "estraverse": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.2.0.tgz",
-      "integrity": "sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.3.0.tgz",
+      "integrity": "sha512-39nnKffWz8xN1BU/2c79n9nB9HDzo0niYUqx6xyqUnyoAnQyyWpOTdZEeiCch8BBu515t4wp9ZmgVfVhn9EBpw==",
       "dev": true
     },
     "esutils": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz",
-      "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.3.tgz",
+      "integrity": "sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==",
       "dev": true
     },
     "eventemitter3": {
@@ -695,12 +719,6 @@
         "write": "1.0.3"
       }
     },
-    "flat-map-polyfill": {
-      "version": "0.3.8",
-      "resolved": "https://registry.npmjs.org/flat-map-polyfill/-/flat-map-polyfill-0.3.8.tgz",
-      "integrity": "sha512-ZfmD5MnU7GglUEhiky9C7yEPaNq1/wh36RDohe+Xr3nJVdccwHbdTkFIYvetcdsoAckUKT51fuf44g7Ni5Doyg==",
-      "dev": true
-    },
     "flatted": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/flatted/-/flatted-2.0.1.tgz",
@@ -708,23 +726,12 @@
       "dev": true
     },
     "follow-redirects": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.7.0.tgz",
-      "integrity": "sha512-m/pZQy4Gj287eNy94nivy5wchN3Kp+Q5WgUPNy5lJSZ3sgkVKSYV/ZChMAQVIgx1SqfZ2zBZtPA2YlXIWxxJOQ==",
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.8.0.tgz",
+      "integrity": "sha512-eYyazyi+vwXZ6LfSQicvqFwaNEF5xTvnB/rpzRLuqwK45u7WbBEnQ/dDic66KD/A8IzTXFlj2ROAcaP0f2v4lg==",
       "dev": true,
       "requires": {
-        "debug": "^3.2.6"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
-          "dev": true,
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        }
+        "debug": "^4.1.1"
       }
     },
     "fs.realpath": {
@@ -791,24 +798,12 @@
       }
     },
     "glob-parent": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-3.1.0.tgz",
-      "integrity": "sha1-nmr2KZ2NO9K9QEMIMr0RPfkGxa4=",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.0.0.tgz",
+      "integrity": "sha512-Z2RwiujPRGluePM6j699ktJYxmPpJKCfpGA13jz2hmFZC7gKetzrWvg5KN3+OsIFmydGyZ1AVwERCq1w/ZZwRg==",
       "dev": true,
       "requires": {
-        "is-glob": "^3.1.0",
-        "path-dirname": "^1.0.0"
-      },
-      "dependencies": {
-        "is-glob": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-3.1.0.tgz",
-          "integrity": "sha1-e6WuJCF4BKxwcHuWkiVnSGzD6Eo=",
-          "dev": true,
-          "requires": {
-            "is-extglob": "^2.1.0"
-          }
-        }
+        "is-glob": "^4.0.1"
       }
     },
     "globals": {
@@ -818,9 +813,9 @@
       "dev": true
     },
     "graceful-fs": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.0.tgz",
-      "integrity": "sha512-jpSvDPV4Cq/bgtpndIWbI5hmYxhQGHPC4d4cqBPb4DLniCfhJokdXhwhaDuLBGLQdvvRum/UiX6ECVIPvDXqdg==",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.2.tgz",
+      "integrity": "sha512-IItsdsea19BoLC7ELy13q1iJFNmd7ofZH5+X/pJr90/nRoPEX0DJo1dHDbgtYWOhJhcCgMDTOw84RZ72q6lB+Q==",
       "dev": true
     },
     "has-flag": {
@@ -836,9 +831,9 @@
       "dev": true
     },
     "hosted-git-info": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.7.1.tgz",
-      "integrity": "sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==",
+      "version": "2.8.4",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.4.tgz",
+      "integrity": "sha512-pzXIvANXEFrc5oFFXRMkbLPQ2rXRoDERwDLyrcUxGhaZhgP54BBSl9Oheh7Vv0T090cszWBxPjkQQ5Sq1PbBRQ==",
       "dev": true
     },
     "http-proxy": {
@@ -932,9 +927,9 @@
       "dev": true
     },
     "inquirer": {
-      "version": "6.5.0",
-      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-6.5.0.tgz",
-      "integrity": "sha512-scfHejeG/lVZSpvCXpsB4j/wQNPM5JC8kiElOI0OUTwmc1RTpXr4H32/HOlQHcZiYl2z2VElwuCVDRG8vFmbnA==",
+      "version": "6.5.2",
+      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-6.5.2.tgz",
+      "integrity": "sha512-cntlB5ghuB0iuO65Ovoi8ogLHiWGs/5yNrtUcKjFhSSiVeAIVpD7koaSU9RM8mpXw5YDi9RdYXGQMaOURB7ycQ==",
       "dev": true,
       "requires": {
         "ansi-escapes": "^3.2.0",
@@ -1147,9 +1142,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.14",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
-      "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+      "version": "4.17.15",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
       "dev": true
     },
     "loglevel": {
@@ -1385,6 +1380,12 @@
       "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
       "dev": true
     },
+    "object.entries-ponyfill": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/object.entries-ponyfill/-/object.entries-ponyfill-1.0.1.tgz",
+      "integrity": "sha1-Kavfd8v70mVm3RqiTp2I9lQz0lY=",
+      "dev": true
+    },
     "once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -1485,9 +1486,9 @@
       "dev": true
     },
     "p-limit": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.2.0.tgz",
-      "integrity": "sha512-pZbTJpoUsCzV48Mc9Nh51VbwO0X9cuPFE8gYwx9BTCt9SF8/b7Zljd2fVgOxhIF/HDTKgpVzs+GPhyKfjLLFRQ==",
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.2.1.tgz",
+      "integrity": "sha512-85Tk+90UCVWvbDavCLKPOLC9vvY8OwEX/RtKF+/1OADJMVlFfEHOiMTPVyxg7mk/dKa+ipdHm0OUkTvCpMTuwg==",
       "dev": true,
       "requires": {
         "p-try": "^2.0.0"
@@ -1527,12 +1528,6 @@
         "json-parse-better-errors": "^1.0.1"
       }
     },
-    "path-dirname": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/path-dirname/-/path-dirname-1.0.2.tgz",
-      "integrity": "sha1-zDPSTVJeCZpTiMAzbG4yuRYGCeA=",
-      "dev": true
-    },
     "path-exists": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
@@ -1582,9 +1577,9 @@
       }
     },
     "portfinder": {
-      "version": "1.0.21",
-      "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.21.tgz",
-      "integrity": "sha512-ESabpDCzmBS3ekHbmpAIiESq3udRsCBGiBZLsC+HgBKv2ezb0R4oG+7RnYEVZ/ZCfhel5Tx3UzdNWA0Lox2QCA==",
+      "version": "1.0.23",
+      "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.23.tgz",
+      "integrity": "sha512-B729mL/uLklxtxuiJKfQ84WPxNw5a7Yhx3geQZdcA4GjNjZSTSSMMWyoennMVnTWSmAR0lMdzWYN0JLnHrg1KQ==",
       "dev": true,
       "requires": {
         "async": "^1.5.2",
@@ -1788,9 +1783,9 @@
       "dev": true
     },
     "resolve": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.11.1.tgz",
-      "integrity": "sha512-vIpgF6wfuJOZI7KKKSP+HmiKggadPQAdsp5HiC1mvqnfp0gF1vdwgBWZIdrVft9pgqoMFQN+R7BSWZiBxx+BBw==",
+      "version": "1.12.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.12.0.tgz",
+      "integrity": "sha512-B/dOmuoAik5bKcD6s6nXDCjzUKnaDvdkRyAk6rsmsKLipWj4797iothd7jmmUhWTfinVMU+wc56rYKsit2Qy4w==",
       "dev": true,
       "requires": {
         "path-parse": "^1.0.6"
@@ -1863,9 +1858,9 @@
       "dev": true
     },
     "semver": {
-      "version": "5.7.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
-      "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==",
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
       "dev": true
     },
     "set-blocking": {
@@ -1994,9 +1989,9 @@
       "dev": true
     },
     "strip-json-comments": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
-      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.0.1.tgz",
+      "integrity": "sha512-VTyMAUfdm047mwKl+u79WIdrZxtFtn+nBxHeb844XBQ9uMNTuTHdx2hc5RiAJYqwTj3wc/xe5HLSdJSkJ+WfZw==",
       "dev": true
     },
     "supports-color": {
@@ -2017,13 +2012,13 @@
       }
     },
     "table": {
-      "version": "5.4.1",
-      "resolved": "https://registry.npmjs.org/table/-/table-5.4.1.tgz",
-      "integrity": "sha512-E6CK1/pZe2N75rGZQotFOdmzWQ1AILtgYbMAbAjvms0S1l5IDB47zG3nCnFGB/w+7nB3vKofbLXCH7HPBo864w==",
+      "version": "5.4.6",
+      "resolved": "https://registry.npmjs.org/table/-/table-5.4.6.tgz",
+      "integrity": "sha512-wmEc8m4fjnob4gt5riFRtTu/6+4rSe12TpAELNSqHMfF3IqnA+CH37USM6/YR3qRZv7e56kAEAtd6nKZaxe0Ug==",
       "dev": true,
       "requires": {
-        "ajv": "^6.9.1",
-        "lodash": "^4.17.11",
+        "ajv": "^6.10.2",
+        "lodash": "^4.17.14",
         "slice-ansi": "^2.1.0",
         "string-width": "^3.0.0"
       },
@@ -2146,6 +2141,12 @@
       "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=",
       "dev": true
     },
+    "v8-compile-cache": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.0.tgz",
+      "integrity": "sha512-usZBT3PW+LOjM25wbqIlZwPeJV+3OSz3M1k1Ws8snlW39dZyYL9lOGC5FgPVHfk0jKmjiDV8Z0mIbVQPiwFs7g==",
+      "dev": true
+    },
     "validate-npm-package-license": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",

From eab2845ebb03c9667ea6ade002ceadbef071c060 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Tue, 27 Aug 2019 21:37:17 +0900
Subject: [PATCH 41/85] 3.16.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f190dc0..248f509 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.15.0",
+  "version": "3.16.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 20cc840..260a91f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.15.0",
+  "version": "3.16.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 941b4435404c63f1d5565c25b80aef6ad1ad611e Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 28 Sep 2019 20:46:38 +0900
Subject: [PATCH 42/85] Add GitHub NodeJS workflow.

---
 .github/workflows/nodejs.yml | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 .github/workflows/nodejs.yml

diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
new file mode 100644
index 0000000..b15baf3
--- /dev/null
+++ b/.github/workflows/nodejs.yml
@@ -0,0 +1,26 @@
+name: Node CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [8.x, 10.x, 12.x]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: npm install, build, and test
+      run: |
+        npm install
+        npm run build --if-present
+        npm test
+      env:
+        CI: true

From 8d76af61ab7b05f0cedeba240203eeb416c55856 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 28 Sep 2019 20:54:03 +0900
Subject: [PATCH 43/85] Remove obsolete travis config.

---
 .travis.yml | 6 ------
 1 file changed, 6 deletions(-)
 delete mode 100644 .travis.yml

diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 97d3175..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-dist: trusty
-addons:
-  chrome: stable
-language: node_js
-node_js:
-  - "stable"

From 8441bcc4628eab4698f1c781c03f735f46d7e135 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sat, 28 Sep 2019 21:03:15 +0900
Subject: [PATCH 44/85] Update dev dependencies.

---
 package-lock.json | 129 +++++++++++++++++++++++++---------------------
 1 file changed, 70 insertions(+), 59 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 248f509..28300e4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,15 +25,15 @@
       }
     },
     "@types/node": {
-      "version": "12.7.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.7.2.tgz",
-      "integrity": "sha512-dyYO+f6ihZEtNPDcWNR1fkoTDf3zAK3lAABDze3mz6POyIercH0lEUawUFXlG8xaQZmm1yEBON/4TsYv/laDYg==",
+      "version": "12.7.8",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.7.8.tgz",
+      "integrity": "sha512-FMdVn84tJJdV+xe+53sYiZS4R5yn1mAIxfj+DVoNiQjTYz1+OYmjwEZr1ev9nU0axXwda0QDbYl06QHanRVH3A==",
       "dev": true
     },
     "acorn": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.0.0.tgz",
-      "integrity": "sha512-PaF/MduxijYYt7unVGRuds1vBC9bFxbNf+VWqhOClfdgy7RlVkQqt610ig1/yxTgsDIfW1cWDel5EBbOy3jdtQ==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
+      "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
       "dev": true
     },
     "acorn-jsx": {
@@ -190,22 +190,22 @@
       "dev": true
     },
     "chrome-launcher": {
-      "version": "0.10.7",
-      "resolved": "https://registry.npmjs.org/chrome-launcher/-/chrome-launcher-0.10.7.tgz",
-      "integrity": "sha512-IoQLp64s2n8OQuvKZwt77CscVj3UlV2Dj7yZtd1EBMld9mSdGcsGy9fN5hd/r4vJuWZR09it78n1+A17gB+AIQ==",
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/chrome-launcher/-/chrome-launcher-0.11.2.tgz",
+      "integrity": "sha512-jx0kJDCXdB2ARcDMwNCtrf04oY1Up4rOmVu+fqJ5MTPOOIG8EhRcEU9NZfXZc6dMw9FU8o1r21PNp8V2M0zQ+g==",
       "dev": true,
       "requires": {
         "@types/node": "*",
-        "is-wsl": "^1.1.0",
+        "is-wsl": "^2.1.0",
         "lighthouse-logger": "^1.0.0",
         "mkdirp": "0.5.1",
         "rimraf": "^2.6.1"
       }
     },
     "chrome-remote-interface": {
-      "version": "0.27.2",
-      "resolved": "https://registry.npmjs.org/chrome-remote-interface/-/chrome-remote-interface-0.27.2.tgz",
-      "integrity": "sha512-pVLljQ29SAx8KIv5tSa9sIf8GrEsAZdPJoeWOmY3/nrIzFmE+EryNNHvDkddGod0cmAFTv+GmPG0uvzxi2NWsA==",
+      "version": "0.28.0",
+      "resolved": "https://registry.npmjs.org/chrome-remote-interface/-/chrome-remote-interface-0.28.0.tgz",
+      "integrity": "sha512-md2qSn6rc/fADlN+Blk2UWNg0SGPYjH2s68piaPN9e62HItKm6uWeXXHh0+28Bq10oaWw8fzNAm1itDFJ+nS4w==",
       "dev": true,
       "requires": {
         "commander": "2.11.x",
@@ -424,9 +424,9 @@
       "dev": true
     },
     "end-of-stream": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.1.tgz",
-      "integrity": "sha512-1MkrZNvWTKCaigbn+W15elq2BB/L22nqrSY5DKlo3X6+vclJm8Bb5djXJBmEX6fS3+zCh/F4VBK5Z2KxJt4s2Q==",
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
+      "integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==",
       "dev": true,
       "requires": {
         "once": "^1.4.0"
@@ -448,9 +448,9 @@
       "dev": true
     },
     "eslint": {
-      "version": "6.2.2",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.2.2.tgz",
-      "integrity": "sha512-mf0elOkxHbdyGX1IJEUsNBzCDdyoUgljF3rRlgfyYh0pwGnreLc0jjD6ZuleOibjmnUWZLY2eXwSooeOgGJ2jw==",
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.4.0.tgz",
+      "integrity": "sha512-WTVEzK3lSFoXUovDHEbkJqCVPEPwbhCq4trDktNI6ygs7aO41d4cDT0JFAT5MivzZeVLWlg7vHL+bgrQv/t3vA==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -522,18 +522,18 @@
       "dev": true
     },
     "eslint-config-prettier": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-6.1.0.tgz",
-      "integrity": "sha512-k9fny9sPjIBQ2ftFTesJV21Rg4R/7a7t7LCtZVrYQiHEp8Nnuk3EGaDmsKSAnsPj0BYcgB2zxzHa2NTkIxcOLg==",
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-6.3.0.tgz",
+      "integrity": "sha512-EWaGjlDAZRzVFveh2Jsglcere2KK5CJBhkNSa1xs3KfMUGdRiT7lG089eqPdvlzWHpAqaekubOsOMu8W8Yk71A==",
       "dev": true,
       "requires": {
         "get-stdin": "^6.0.0"
       }
     },
     "eslint-plugin-jsdoc": {
-      "version": "15.8.3",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-15.8.3.tgz",
-      "integrity": "sha512-p2O6SYetuSD5gWV04HHevIfp2WfimXReYwINuB4iC33hm1jrYoP+t2XbJtCBYvjhoRjjw8w4NfnyZKixte1fug==",
+      "version": "15.9.5",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-15.9.5.tgz",
+      "integrity": "sha512-OQOUf8Li9PRzULQG8Wi7QOd10aCZVAp/RkqOw0FYPT2j0F9lcPB21jBb6BLlWgR4F7XjdzbUmgVvhHYZGOWCVg==",
       "dev": true,
       "requires": {
         "comment-parser": "^0.6.2",
@@ -545,9 +545,9 @@
       }
     },
     "eslint-plugin-prettier": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-3.1.0.tgz",
-      "integrity": "sha512-XWX2yVuwVNLOUhQijAkXz+rMPPoCr7WFiAl8ig6I7Xn+pPVhDhzg4DxHpmbeb0iqjO9UronEA3Tb09ChnFVHHA==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-3.1.1.tgz",
+      "integrity": "sha512-A+TZuHZ0KU0cnn56/9mfR7/KjUJ9QNVXUhwvRFSR7PGPe0zQR6PTkmyqg1AtUUEOzTqeRsUwyKFh0oVZKVCrtA==",
       "dev": true,
       "requires": {
         "prettier-linter-helpers": "^1.0.0"
@@ -626,9 +626,9 @@
       "dev": true
     },
     "eventemitter3": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
-      "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.0.tgz",
+      "integrity": "sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg==",
       "dev": true
     },
     "execa": {
@@ -726,12 +726,23 @@
       "dev": true
     },
     "follow-redirects": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.8.0.tgz",
-      "integrity": "sha512-eYyazyi+vwXZ6LfSQicvqFwaNEF5xTvnB/rpzRLuqwK45u7WbBEnQ/dDic66KD/A8IzTXFlj2ROAcaP0f2v4lg==",
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.9.0.tgz",
+      "integrity": "sha512-CRcPzsSIbXyVDl0QI01muNDu69S8trU4jArW9LpOt2WtC6LyUJetcIrmfHsRBx7/Jb6GHJUiuqyYxPooFfNt6A==",
       "dev": true,
       "requires": {
-        "debug": "^4.1.1"
+        "debug": "^3.0.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.2.6",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
+          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        }
       }
     },
     "fs.realpath": {
@@ -798,9 +809,9 @@
       }
     },
     "glob-parent": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.0.0.tgz",
-      "integrity": "sha512-Z2RwiujPRGluePM6j699ktJYxmPpJKCfpGA13jz2hmFZC7gKetzrWvg5KN3+OsIFmydGyZ1AVwERCq1w/ZZwRg==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.0.tgz",
+      "integrity": "sha512-qjtRgnIVmOfnKUE3NJAQEdk+lKrxfw8t5ke7SXtfMTHcjsBfOfWXCQfdb30zfDoZQ2IRSIiidmjtbHZPZ++Ihw==",
       "dev": true,
       "requires": {
         "is-glob": "^4.0.1"
@@ -837,12 +848,12 @@
       "dev": true
     },
     "http-proxy": {
-      "version": "1.17.0",
-      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.17.0.tgz",
-      "integrity": "sha512-Taqn+3nNvYRfJ3bGvKfBSRwy1v6eePlm3oc/aWVxZp57DQr5Eq3xhKJi7Z4hZpS8PC3H4qI+Yly5EmFacGuA/g==",
+      "version": "1.18.0",
+      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.0.tgz",
+      "integrity": "sha512-84I2iJM/n1d4Hdgc6y2+qY5mDaz2PUVjlg9znE9byl+q0uC3DeByqBGReQu5tpLK0TAqTIXScRUV+dg7+bUPpQ==",
       "dev": true,
       "requires": {
-        "eventemitter3": "^3.0.0",
+        "eventemitter3": "^4.0.0",
         "follow-redirects": "^1.0.0",
         "requires-port": "^1.0.0"
       }
@@ -1022,9 +1033,9 @@
       "dev": true
     },
     "is-wsl": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-1.1.0.tgz",
-      "integrity": "sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-2.1.1.tgz",
+      "integrity": "sha512-umZHcSrwlDHo2TGMXv0DZ8dIUGunZ2Iv68YZnrmCiBPkZ4aaOhtv7pXJKeki9k3qJ3RJr0cDyitcl5wEH3AYog==",
       "dev": true
     },
     "isexe": {
@@ -1148,9 +1159,9 @@
       "dev": true
     },
     "loglevel": {
-      "version": "1.6.3",
-      "resolved": "https://registry.npmjs.org/loglevel/-/loglevel-1.6.3.tgz",
-      "integrity": "sha512-LoEDv5pgpvWgPF4kNYuIp0qqSJVWak/dML0RY74xlzMZiT9w77teNAwKYKWBTYjlokMirg+o3jBwp+vlLrcfAA==",
+      "version": "1.6.4",
+      "resolved": "https://registry.npmjs.org/loglevel/-/loglevel-1.6.4.tgz",
+      "integrity": "sha512-p0b6mOGKcGa+7nnmKbpzR6qloPbrgLcnio++E+14Vo/XffOGwZtRpUhr8dTH/x2oCMmEoIU0Zwm3ZauhvYD17g==",
       "dev": true
     },
     "loud-rejection": {
@@ -1276,14 +1287,14 @@
       }
     },
     "mocha-chrome": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/mocha-chrome/-/mocha-chrome-2.0.0.tgz",
-      "integrity": "sha512-Kq6W9jdXY3C2PhNHtSrk3GnDuoAKN+DbgJKCLfXtc5cql8oHB8+rUYlq9t1c8in6vQ6/X432E/U8h0pV5QlAug==",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/mocha-chrome/-/mocha-chrome-2.1.0.tgz",
+      "integrity": "sha512-YetZRb4d9dd5p/cxQTUuDHsu2MpDiVTuTfeKmw7YP7foMXAJP2ASpdRvjDQ7ciCYsdpi5xgWZwM/fo5kzY58/Q==",
       "dev": true,
       "requires": {
         "chalk": "^2.0.1",
-        "chrome-launcher": "^0.10.2",
-        "chrome-remote-interface": "^0.27.0",
+        "chrome-launcher": "^0.11.2",
+        "chrome-remote-interface": "^0.28.0",
         "chrome-unmirror": "^0.1.0",
         "debug": "^4.1.1",
         "deep-assign": "^3.0.0",
@@ -1577,9 +1588,9 @@
       }
     },
     "portfinder": {
-      "version": "1.0.23",
-      "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.23.tgz",
-      "integrity": "sha512-B729mL/uLklxtxuiJKfQ84WPxNw5a7Yhx3geQZdcA4GjNjZSTSSMMWyoennMVnTWSmAR0lMdzWYN0JLnHrg1KQ==",
+      "version": "1.0.24",
+      "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.24.tgz",
+      "integrity": "sha512-ekRl7zD2qxYndYflwiryJwMioBI7LI7rVXg3EnLK3sjkouT5eOuhS3gS255XxBksa30VG8UPZYZCdgfGOfkSUg==",
       "dev": true,
       "requires": {
         "async": "^1.5.2",
@@ -1843,9 +1854,9 @@
       }
     },
     "rxjs": {
-      "version": "6.5.2",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.2.tgz",
-      "integrity": "sha512-HUb7j3kvb7p7eCUHE3FqjoDsC1xfZQ4AHFWfTKSpZ+sAhhz5X1WX0ZuUqWbzB2QhSLp3DoLUG+hMdEDKqWo2Zg==",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.3.tgz",
+      "integrity": "sha512-wuYsAYYFdWTAnAaPoKGNhfpWwKZbJW+HgAJ+mImp+Epl7BG8oNWBCTyRM8gba9k4lk8BgWdoYm21Mo/RYhhbgA==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.0"

From 7e96b132cdc94523ee72e8e8cb2ba731877dbb33 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 20 Oct 2019 15:33:47 +0900
Subject: [PATCH 45/85] Run workflow on push and pull_request.

Format YAML with prettier.
---
 .github/workflows/nodejs.yml | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index b15baf3..89973ab 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -1,10 +1,9 @@
 name: Node CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     strategy:
@@ -12,15 +11,15 @@ jobs:
         node-version: [8.x, 10.x, 12.x]
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - name: npm install, build, and test
-      run: |
-        npm install
-        npm run build --if-present
-        npm test
-      env:
-        CI: true
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: npm install, build, and test
+        run: |
+          npm install
+          npm run build --if-present
+          npm test
+        env:
+          CI: true

From ae6b62a7b0862ef102946fa4bc8992510869eb27 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 3 Nov 2019 10:20:10 +0900
Subject: [PATCH 46/85] Add GitHub Sponsors config.

---
 .github/FUNDING.yml | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 .github/FUNDING.yml

diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..048b1cf
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1 @@
+github: [blueimp]

From f6b07f00f0005a8d0cfb7a0dbccdea96a8e57747 Mon Sep 17 00:00:00 2001
From: MAGKILLER <jacklishijia@gmail.com>
Date: Mon, 25 Nov 2019 13:44:05 -0800
Subject: [PATCH 47/85] Update README.md

Changed Markdown
---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 121301b..96efb0d 100644
--- a/README.md
+++ b/README.md
@@ -57,8 +57,8 @@ function.
 
 ## API
 
-In addition to the **canvas.toBlob** polyfill, the JavaScript Canvas to Blob
-script provides one additional function called **dataURLtoBlob**, which is added
+In addition to the `canvas.toBlob` polyfill, the JavaScript Canvas to Blob
+script provides one additional function called `dataURLtoBlob`, which is added
 to the global window object, unless the library is loaded via a module loader
 like RequireJS, Browserify or webpack:
 

From a07c944507eb2fdba4a1322d7cf61164dde28b39 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 22 Dec 2019 17:14:03 +0900
Subject: [PATCH 48/85] Update load-image.js vendor dependency.

---
 test/vendor/load-image.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index 0119c63..2e158f5 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -37,7 +37,7 @@
       loadImage.fetchBlob(
         file,
         function(blob) {
-          if (blob) {
+          if (blob && loadImage.isInstanceOf('Blob', blob)) {
             // eslint-disable-next-line no-param-reassign
             file = blob
             url = loadImage.createObjectURL(file)

From 4fa7e327c262fefb2b6dee9ca4601663e5e07426 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 22 Dec 2019 17:14:54 +0900
Subject: [PATCH 49/85] Run mocha tests via Docker.

---
 .github/workflows/nodejs.yml |   25 -
 .github/workflows/test.yml   |   34 +
 docker-compose.yml           |   16 +
 package-lock.json            | 1173 ----------------------------------
 package.json                 |    9 +-
 5 files changed, 52 insertions(+), 1205 deletions(-)
 delete mode 100644 .github/workflows/nodejs.yml
 create mode 100644 .github/workflows/test.yml
 create mode 100644 docker-compose.yml

diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
deleted file mode 100644
index 89973ab..0000000
--- a/.github/workflows/nodejs.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-name: Node CI
-
-on: [push, pull_request]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        node-version: [8.x, 10.x, 12.x]
-
-    steps:
-      - uses: actions/checkout@v1
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: npm install, build, and test
-        run: |
-          npm install
-          npm run build --if-present
-          npm test
-        env:
-          CI: true
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..c466ca3
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,34 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+      - name: npm install
+        run: npm install
+        env:
+          CI: true
+      - name: lint
+        run: npm run lint
+        env:
+          CI: true
+
+  unit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: mocha
+        run: docker-compose run --rm mocha
+      - name: docker-compose logs
+        if: always()
+        run: docker-compose logs nginx
+      - name: docker-compose down
+        if: always()
+        run: docker-compose down -v
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..74f66fe
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,16 @@
+version: '3.7'
+services:
+  nginx:
+    image: nginx:alpine
+    ports:
+      - 127.0.0.1:80:80
+      - ${SERVER_HOST:-127.0.0.1}:${SERVER_PORT-}:80
+    volumes:
+      - .:/usr/share/nginx/html:ro
+  mocha:
+    image: blueimp/mocha-chrome
+    command: http://nginx/test
+    environment:
+      - WAIT_FOR_HOSTS=nginx:80
+    depends_on:
+      - nginx
diff --git a/package-lock.json b/package-lock.json
index 28300e4..6e6311f 100644
--- a/package-lock.json
+++ b/package-lock.json
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-      "dev": true,
-      "requires": {
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-        "map-obj": "^2.0.0",
-        "quick-lru": "^1.0.0"
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@@ -265,18 +164,6 @@
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-      "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
-      "dev": true
-    },
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-      "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-2.0.0.tgz",
-      "integrity": "sha1-XvjbKV0B5u1sv3qrlpmNeCJSe2g=",
-      "dev": true
-    },
     "strip-json-comments": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.0.1.tgz",
       "integrity": "sha512-VTyMAUfdm047mwKl+u79WIdrZxtFtn+nBxHeb844XBQ9uMNTuTHdx2hc5RiAJYqwTj3wc/xe5HLSdJSkJ+WfZw==",
       "dev": true
     },
-    "supports-color": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.5.0.tgz",
-      "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
-      "dev": true,
-      "requires": {
-        "has-flag": "^2.0.0"
-      },
-      "dependencies": {
-        "has-flag": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-2.0.0.tgz",
-          "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
-          "dev": true
-        }
-      }
-    },
     "table": {
       "version": "5.4.6",
       "resolved": "https://registry.npmjs.org/table/-/table-5.4.6.tgz",
@@ -2083,18 +1045,6 @@
         "os-tmpdir": "~1.0.2"
       }
     },
-    "tree-kill": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.1.tgz",
-      "integrity": "sha512-4hjqbObwlh2dLyW4tcz0Ymw0ggoaVDMveUB9w8kFSQScdRLo0gxO9J7WFcUBo+W3C1TLdFIEwNOWebgZZ0RH9Q==",
-      "dev": true
-    },
-    "trim-newlines": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-2.0.0.tgz",
-      "integrity": "sha1-tAPQuRvlDDMd/EuC7s6yLD3hbSA=",
-      "dev": true
-    },
     "tslib": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",
@@ -2128,15 +1078,6 @@
         }
       }
     },
-    "union": {
-      "version": "0.4.6",
-      "resolved": "https://registry.npmjs.org/union/-/union-0.4.6.tgz",
-      "integrity": "sha1-GY+9rrolTniLDvy2MLwR8kopWeA=",
-      "dev": true,
-      "requires": {
-        "qs": "~2.3.3"
-      }
-    },
     "uri-js": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
@@ -2146,28 +1087,12 @@
         "punycode": "^2.1.0"
       }
     },
-    "url-join": {
-      "version": "2.0.5",
-      "resolved": "https://registry.npmjs.org/url-join/-/url-join-2.0.5.tgz",
-      "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=",
-      "dev": true
-    },
     "v8-compile-cache": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.0.tgz",
       "integrity": "sha512-usZBT3PW+LOjM25wbqIlZwPeJV+3OSz3M1k1Ws8snlW39dZyYL9lOGC5FgPVHfk0jKmjiDV8Z0mIbVQPiwFs7g==",
       "dev": true
     },
-    "validate-npm-package-license": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
-      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
-      "dev": true,
-      "requires": {
-        "spdx-correct": "^3.0.0",
-        "spdx-expression-parse": "^3.0.0"
-      }
-    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
@@ -2177,65 +1102,12 @@
         "isexe": "^2.0.0"
       }
     },
-    "which-module": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
-      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
-      "dev": true
-    },
     "wordwrap": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
       "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
       "dev": true
     },
-    "wrap-ansi": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
-      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
-      "dev": true,
-      "requires": {
-        "string-width": "^1.0.1",
-        "strip-ansi": "^3.0.1"
-      },
-      "dependencies": {
-        "ansi-regex": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-          "dev": true
-        },
-        "is-fullwidth-code-point": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
-          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
-          "dev": true,
-          "requires": {
-            "number-is-nan": "^1.0.0"
-          }
-        },
-        "string-width": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
-          "dev": true,
-          "requires": {
-            "code-point-at": "^1.0.0",
-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
-          }
-        },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
-        }
-      }
-    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -2250,51 +1122,6 @@
       "requires": {
         "mkdirp": "^0.5.1"
       }
-    },
-    "ws": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
-      "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
-      "dev": true,
-      "requires": {
-        "async-limiter": "~1.0.0"
-      }
-    },
-    "y18n": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
-      "dev": true
-    },
-    "yargs": {
-      "version": "12.0.5",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
-      "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
-      "dev": true,
-      "requires": {
-        "cliui": "^4.0.0",
-        "decamelize": "^1.2.0",
-        "find-up": "^3.0.0",
-        "get-caller-file": "^1.0.1",
-        "os-locale": "^3.0.0",
-        "require-directory": "^2.1.1",
-        "require-main-filename": "^1.0.1",
-        "set-blocking": "^2.0.0",
-        "string-width": "^2.0.0",
-        "which-module": "^2.0.0",
-        "y18n": "^3.2.1 || ^4.0.0",
-        "yargs-parser": "^11.1.1"
-      }
-    },
-    "yargs-parser": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
-      "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
-      "dev": true,
-      "requires": {
-        "camelcase": "^5.0.0",
-        "decamelize": "^1.2.0"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index 260a91f..1c38c58 100644
--- a/package.json
+++ b/package.json
@@ -21,16 +21,12 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "concurrently": "4",
     "eslint": "6",
     "eslint-config-blueimp": "1",
     "eslint-config-prettier": "6",
     "eslint-plugin-jsdoc": "15",
     "eslint-plugin-prettier": "3",
     "prettier": "1",
-    "get-port-cli": "2",
-    "http-server": "0",
-    "mocha-chrome": "2",
     "uglify-js": "3"
   },
   "eslintConfig": {
@@ -54,10 +50,9 @@
   },
   "scripts": {
     "lint": "eslint .",
-    "serve": "http-server . -a 127.0.0.1 -p $PORT -s",
-    "mocha": "mocha-chrome http://127.0.0.1:$PORT/test",
-    "unit": "PORT=$(get-port) concurrently -k -s first 'npm run serve' 'npm run mocha'",
+    "unit": "docker-compose run --rm mocha",
     "test": "npm run lint && npm run unit",
+    "posttest": "docker-compose down -v",
     "build": "cd js && uglifyjs canvas-to-blob.js -c -m -o canvas-to-blob.min.js --source-map url=canvas-to-blob.min.js.map",
     "preversion": "npm test",
     "version": "npm run build && git add -A js",

From 12747b0d2ebddaadba40e542c799fd2810918cf8 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 22 Dec 2019 17:16:19 +0900
Subject: [PATCH 50/85] 3.17.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 6e6311f..f89d4a5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.16.0",
+  "version": "3.17.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 1c38c58..02fa842 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.16.0",
+  "version": "3.17.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From e616c47dfbb88764a3f0c1cf61d9b931bb1f1e89 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 26 Mar 2020 20:04:34 +0900
Subject: [PATCH 51/85] Update dev dependencies.

---
 package-lock.json | 601 +++++++++++++++++++++++++++-------------------
 package.json      |   2 +-
 2 files changed, 354 insertions(+), 249 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f89d4a5..80fb1f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,59 +5,82 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.5.5",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
-      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "version": "7.8.3",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.3.tgz",
+      "integrity": "sha512-a9gxpmdXtZEInkCSHUJDLHZVBgb1QS0jhss4cPP93EW7s+uC5bikET2twEF3KV+7rDblJcmNvTR7VJejqd2C2g==",
       "dev": true,
       "requires": {
-        "@babel/highlight": "^7.0.0"
+        "@babel/highlight": "^7.8.3"
       }
     },
+    "@babel/helper-validator-identifier": {
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.0.tgz",
+      "integrity": "sha512-6G8bQKjOh+of4PV/ThDm/rRqlU7+IGoJuofpagU5GlEl29Vv0RGqqt86ZGRV8ZuSOY3o+8yXl5y782SMcG7SHw==",
+      "dev": true
+    },
     "@babel/highlight": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
-      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.9.0.tgz",
+      "integrity": "sha512-lJZPilxX7Op3Nv/2cvFdnlepPXDxi29wxteT57Q965oc5R9v86ztx0jfxVrTcBk8C2kcPkkDa2Z4T3ZsPPVWsQ==",
       "dev": true,
       "requires": {
+        "@babel/helper-validator-identifier": "^7.9.0",
         "chalk": "^2.0.0",
-        "esutils": "^2.0.2",
         "js-tokens": "^4.0.0"
       }
     },
+    "@types/color-name": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
+      "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==",
+      "dev": true
+    },
     "acorn": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
-      "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+      "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
       "dev": true
     },
     "acorn-jsx": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
-      "integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.2.0.tgz",
+      "integrity": "sha512-HiUX/+K2YpkpJ+SzBffkM/AQ2YE03S0U1kjTLVpoJdhZMOWy8qvXVN9JdLqv2QsaQ6MPYQIuNmwD8zOiYUofLQ==",
       "dev": true
     },
     "ajv": {
-      "version": "6.10.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
-      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+      "version": "6.12.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
+      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
       "dev": true,
       "requires": {
-        "fast-deep-equal": "^2.0.1",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
       }
     },
     "ansi-escapes": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
-      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
-      "dev": true
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-4.3.1.tgz",
+      "integrity": "sha512-JWF7ocqNrp8u9oqpgV+wH5ftbt+cfvv+PTjOvKLT3AdYly/LmORARfEVT1iyjwN+4MqE5UmVKoAdIBqeoCHgLA==",
+      "dev": true,
+      "requires": {
+        "type-fest": "^0.11.0"
+      },
+      "dependencies": {
+        "type-fest": {
+          "version": "0.11.0",
+          "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.11.0.tgz",
+          "integrity": "sha512-OdjXJxnCN1AvyLSzeKIgXTXxV+99ZuXl3Hpo9XpJAv9MBcHrrJOQ5kV7ypXOuQie+AmWG25hLbiKdwYTifzcfQ==",
+          "dev": true
+        }
+      }
     },
     "ansi-regex": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
-      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+      "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
       "dev": true
     },
     "ansi-styles": {
@@ -115,17 +138,6 @@
         "ansi-styles": "^3.2.1",
         "escape-string-regexp": "^1.0.5",
         "supports-color": "^5.3.0"
-      },
-      "dependencies": {
-        "supports-color": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
-          "dev": true,
-          "requires": {
-            "has-flag": "^3.0.0"
-          }
-        }
       }
     },
     "chardet": {
@@ -135,12 +147,12 @@
       "dev": true
     },
     "cli-cursor": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
-      "integrity": "sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",
+      "integrity": "sha512-I/zHAwsKf9FqGoXM4WWRACob9+SNukZTd94DWF57E4toouRulbCxcUh6RKUEOQlYTHJnzkPMySvPNaaSLNfLZw==",
       "dev": true,
       "requires": {
-        "restore-cursor": "^2.0.0"
+        "restore-cursor": "^3.1.0"
       }
     },
     "cli-width": {
@@ -164,10 +176,16 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
+    "commander": {
+      "version": "2.20.3",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+      "dev": true
+    },
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+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
           "dev": true
         },
         "string-width": {
@@ -1012,15 +1128,6 @@
             "is-fullwidth-code-point": "^2.0.0",
             "strip-ansi": "^5.1.0"
           }
-        },
-        "strip-ansi": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
-          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^4.1.0"
-          }
         }
       }
     },
@@ -1046,9 +1153,9 @@
       }
     },
     "tslib": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",
-      "integrity": "sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==",
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+      "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA==",
       "dev": true
     },
     "type-check": {
@@ -1060,22 +1167,20 @@
         "prelude-ls": "~1.1.2"
       }
     },
+    "type-fest": {
+      "version": "0.8.1",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
+      "integrity": "sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==",
+      "dev": true
+    },
     "uglify-js": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.0.tgz",
-      "integrity": "sha512-W+jrUHJr3DXKhrsS7NUVxn3zqMOFn0hL/Ei6v0anCIMoKC93TjcflTagwIHLW7SfMFfiQuktQyFVCFHGUE0+yg==",
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.8.0.tgz",
+      "integrity": "sha512-ugNSTT8ierCsDHso2jkBHXYrU8Y5/fY2ZUprfrJUiD7YpuFvV4jODLFmb3h4btQjqr5Nh4TX4XtgDfCU1WdioQ==",
       "dev": true,
       "requires": {
-        "commander": "~2.20.0",
+        "commander": "~2.20.3",
         "source-map": "~0.6.1"
-      },
-      "dependencies": {
-        "commander": {
-          "version": "2.20.0",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-          "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
-          "dev": true
-        }
       }
     },
     "uri-js": {
@@ -1102,10 +1207,10 @@
         "isexe": "^2.0.0"
       }
     },
-    "wordwrap": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+    "word-wrap": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
+      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
     "wrappy": {
diff --git a/package.json b/package.json
index 02fa842..72128e1 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "eslint": "6",
     "eslint-config-blueimp": "1",
     "eslint-config-prettier": "6",
-    "eslint-plugin-jsdoc": "15",
+    "eslint-plugin-jsdoc": "22",
     "eslint-plugin-prettier": "3",
     "prettier": "1",
     "uglify-js": "3"

From e9b5697fde4c7f4b404f03e22a2fcc6870faf013 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 26 Mar 2020 20:06:43 +0900
Subject: [PATCH 52/85] Update prettier to version 2.

---
 js/canvas-to-blob.js | 18 +++++++++---------
 package-lock.json    |  6 +++---
 package.json         |  6 ++++--
 test/test.js         | 42 +++++++++++++++++++++---------------------
 4 files changed, 37 insertions(+), 35 deletions(-)

diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index 801339c..b1aa9ef 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -14,14 +14,14 @@
 
 /* global define, Uint8Array, ArrayBuffer, module */
 
-;(function(window) {
+;(function (window) {
   'use strict'
 
   var CanvasPrototype =
     window.HTMLCanvasElement && window.HTMLCanvasElement.prototype
   var hasBlobConstructor =
     window.Blob &&
-    (function() {
+    (function () {
       try {
         return Boolean(new Blob())
       } catch (e) {
@@ -31,7 +31,7 @@
   var hasArrayBufferViewSupport =
     hasBlobConstructor &&
     window.Uint8Array &&
-    (function() {
+    (function () {
       try {
         return new Blob([new Uint8Array(100)]).size === 100
       } catch (e) {
@@ -49,7 +49,7 @@
     window.atob &&
     window.ArrayBuffer &&
     window.Uint8Array &&
-    function(dataURI) {
+    function (dataURI) {
       var matches,
         mediaType,
         isBase64,
@@ -95,9 +95,9 @@
     }
   if (window.HTMLCanvasElement && !CanvasPrototype.toBlob) {
     if (CanvasPrototype.mozGetAsFile) {
-      CanvasPrototype.toBlob = function(callback, type, quality) {
+      CanvasPrototype.toBlob = function (callback, type, quality) {
         var self = this
-        setTimeout(function() {
+        setTimeout(function () {
           if (quality && CanvasPrototype.toDataURL && dataURLtoBlob) {
             callback(dataURLtoBlob(self.toDataURL(type, quality)))
           } else {
@@ -106,16 +106,16 @@
         })
       }
     } else if (CanvasPrototype.toDataURL && dataURLtoBlob) {
-      CanvasPrototype.toBlob = function(callback, type, quality) {
+      CanvasPrototype.toBlob = function (callback, type, quality) {
         var self = this
-        setTimeout(function() {
+        setTimeout(function () {
           callback(dataURLtoBlob(self.toDataURL(type, quality)))
         })
       }
     }
   }
   if (typeof define === 'function' && define.amd) {
-    define(function() {
+    define(function () {
       return dataURLtoBlob
     })
   } else if (typeof module === 'object' && module.exports) {
diff --git a/package-lock.json b/package-lock.json
index 80fb1f3..8f43364 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -873,9 +873,9 @@
       "dev": true
     },
     "prettier": {
-      "version": "1.19.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.19.1.tgz",
-      "integrity": "sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.0.2.tgz",
+      "integrity": "sha512-5xJQIPT8BraI7ZnaDwSbu5zLrB6vvi8hVV58yHQ+QK64qrY40dULy0HSRlQ2/2IdzeBpjhDkqdcFBnFeDEMVdg==",
       "dev": true
     },
     "prettier-linter-helpers": {
diff --git a/package.json b/package.json
index 72128e1..e057b62 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "eslint-config-prettier": "6",
     "eslint-plugin-jsdoc": "22",
     "eslint-plugin-prettier": "3",
-    "prettier": "1",
+    "prettier": "2",
     "uglify-js": "3"
   },
   "eslintConfig": {
@@ -44,9 +44,11 @@
     "test/vendor"
   ],
   "prettier": {
+    "arrowParens": "avoid",
     "proseWrap": "always",
     "semi": false,
-    "singleQuote": true
+    "singleQuote": true,
+    "trailingComma": "none"
   },
   "scripts": {
     "lint": "eslint .",
diff --git a/test/test.js b/test/test.js
index 0c17819..bd3fb25 100644
--- a/test/test.js
+++ b/test/test.js
@@ -11,12 +11,12 @@
 
 /* global describe, it, chai, dataURLtoBlob */
 
-;(function() {
+;(function () {
   'use strict'
 
   var expect = chai.expect
-  var canvasToBlob = function(canvas, callback, type, quality) {
-    setTimeout(function() {
+  var canvasToBlob = function (canvas, callback, type, quality) {
+    setTimeout(function () {
       callback(dataURLtoBlob(canvas.toDataURL(type, quality)))
     })
   }
@@ -29,12 +29,12 @@
   var imageUrl = 'data:image/gif;base64,' + b64Data
   var blob = dataURLtoBlob(imageUrl)
 
-  describe('canvas.toBlob', function() {
-    it('Converts a canvas element to a blob and passes it to the callback function', function(done) {
+  describe('canvas.toBlob', function () {
+    it('Converts a canvas element to a blob and passes it to the callback function', function (done) {
       window.loadImage(
         blob,
-        function(canvas) {
-          canvasToBlob(canvas, function(newBlob) {
+        function (canvas) {
+          canvasToBlob(canvas, function (newBlob) {
             expect(newBlob).to.be.a.instanceOf(Blob)
             done()
           })
@@ -43,13 +43,13 @@
       )
     })
 
-    it('Converts a canvas element to a PNG blob', function(done) {
+    it('Converts a canvas element to a PNG blob', function (done) {
       window.loadImage(
         blob,
-        function(canvas) {
+        function (canvas) {
           canvasToBlob(
             canvas,
-            function(newBlob) {
+            function (newBlob) {
               expect(newBlob.type).to.equal('image/png')
               done()
             },
@@ -60,13 +60,13 @@
       )
     })
 
-    it('Converts a canvas element to a JPG blob', function(done) {
+    it('Converts a canvas element to a JPG blob', function (done) {
       window.loadImage(
         blob,
-        function(canvas) {
+        function (canvas) {
           canvasToBlob(
             canvas,
-            function(newBlob) {
+            function (newBlob) {
               expect(newBlob.type).to.equal('image/jpeg')
               done()
             },
@@ -77,12 +77,12 @@
       )
     })
 
-    it('Keeps the aspect ratio of the canvas image', function(done) {
+    it('Keeps the aspect ratio of the canvas image', function (done) {
       window.loadImage(
         blob,
-        function(canvas) {
-          canvasToBlob(canvas, function(newBlob) {
-            window.loadImage(newBlob, function(img) {
+        function (canvas) {
+          canvasToBlob(canvas, function (newBlob) {
+            window.loadImage(newBlob, function (img) {
               expect(img.width).to.equal(canvas.width)
               expect(img.height).to.equal(canvas.height)
               done()
@@ -93,14 +93,14 @@
       )
     })
 
-    it('Keeps the image data of the canvas image', function(done) {
+    it('Keeps the image data of the canvas image', function (done) {
       window.loadImage(
         blob,
-        function(canvas) {
-          canvasToBlob(canvas, function(newBlob) {
+        function (canvas) {
+          canvasToBlob(canvas, function (newBlob) {
             window.loadImage(
               newBlob,
-              function(newCanvas) {
+              function (newCanvas) {
                 var canvasData = canvas
                   .getContext('2d')
                   .getImageData(0, 0, canvas.width, canvas.height)

From 8e7d8252b25477fe17d523cac0595182b4628bcd Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 26 Mar 2020 20:41:41 +0900
Subject: [PATCH 53/85] Update vendor dependencies.

---
 test/vendor/load-image-scale.js |  16 +-
 test/vendor/load-image.js       |  28 +-
 test/vendor/mocha.css           |   1 -
 test/vendor/mocha.js            | 862 ++++++++++++++++++--------------
 4 files changed, 504 insertions(+), 403 deletions(-)

diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index 39be9a5..4de6d02 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -11,7 +11,7 @@
 
 /* global define, module, require */
 
-;(function(factory) {
+;(function (factory) {
   'use strict'
   if (typeof define === 'function' && define.amd) {
     // Register as an anonymous AMD module:
@@ -22,12 +22,12 @@
     // Browser globals:
     factory(window.loadImage)
   }
-})(function(loadImage) {
+})(function (loadImage) {
   'use strict'
 
   var originalTransform = loadImage.transform
 
-  loadImage.transform = function(img, options, callback, file, data) {
+  loadImage.transform = function (img, options, callback, file, data) {
     originalTransform.call(
       loadImage,
       loadImage.scale(img, options, data),
@@ -41,12 +41,12 @@
   // Transform image coordinates, allows to override e.g.
   // the canvas orientation based on the orientation option,
   // gets canvas, options passed as arguments:
-  loadImage.transformCoordinates = function() {}
+  loadImage.transformCoordinates = function () {}
 
   // Returns transformed options, allows to override e.g.
   // maxWidth, maxHeight and crop options based on the aspectRatio.
   // gets img, options passed as arguments:
-  loadImage.getTransformedOptions = function(img, options) {
+  loadImage.getTransformedOptions = function (img, options) {
     var aspectRatio = options.aspectRatio
     var newOptions
     var i
@@ -75,7 +75,7 @@
   }
 
   // Canvas render method, allows to implement a different rendering algorithm:
-  loadImage.renderImageToCanvas = function(
+  loadImage.renderImageToCanvas = function (
     canvas,
     img,
     sourceX,
@@ -104,7 +104,7 @@
   }
 
   // Determines if the target image should be a canvas element:
-  loadImage.hasCanvasOption = function(options) {
+  loadImage.hasCanvasOption = function (options) {
     return options.canvas || options.crop || !!options.aspectRatio
   }
 
@@ -113,7 +113,7 @@
   // Returns a canvas object if the browser supports canvas
   // and the hasCanvasOption method returns true or a canvas
   // object is passed as image, else the scaled image:
-  loadImage.scale = function(img, options, data) {
+  loadImage.scale = function (img, options, data) {
     // eslint-disable-next-line no-param-reassign
     options = options || {}
     var canvas = document.createElement('canvas')
diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index 2e158f5..a93ea13 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -11,7 +11,7 @@
 
 /* global define, webkitURL, module */
 
-;(function($) {
+;(function ($) {
   'use strict'
 
   /**
@@ -27,16 +27,16 @@
   function loadImage(file, callback, options) {
     var img = document.createElement('img')
     var url
-    img.onerror = function(event) {
+    img.onerror = function (event) {
       return loadImage.onerror(img, event, file, callback, options)
     }
-    img.onload = function(event) {
+    img.onload = function (event) {
       return loadImage.onload(img, event, file, callback, options)
     }
     if (typeof file === 'string') {
       loadImage.fetchBlob(
         file,
-        function(blob) {
+        function (blob) {
           if (blob && loadImage.isInstanceOf('Blob', blob)) {
             // eslint-disable-next-line no-param-reassign
             file = blob
@@ -63,7 +63,7 @@
         img.src = url
         return img
       }
-      return loadImage.readFile(file, function(e) {
+      return loadImage.readFile(file, function (e) {
         var target = e.target
         if (target && target.result) {
           img.src = target.result
@@ -96,27 +96,27 @@
   // If the callback given to this function returns a blob, it is used as image
   // source instead of the original url and overrides the file argument used in
   // the onload and onerror event callbacks:
-  loadImage.fetchBlob = function(url, callback) {
+  loadImage.fetchBlob = function (url, callback) {
     callback()
   }
 
-  loadImage.isInstanceOf = function(type, obj) {
+  loadImage.isInstanceOf = function (type, obj) {
     // Cross-frame instanceof check
     return Object.prototype.toString.call(obj) === '[object ' + type + ']'
   }
 
-  loadImage.transform = function(img, options, callback, file, data) {
+  loadImage.transform = function (img, options, callback, file, data) {
     callback(img, data)
   }
 
-  loadImage.onerror = function(img, event, file, callback, options) {
+  loadImage.onerror = function (img, event, file, callback, options) {
     revokeHelper(img, options)
     if (callback) {
       callback.call(img, event)
     }
   }
 
-  loadImage.onload = function(img, event, file, callback, options) {
+  loadImage.onload = function (img, event, file, callback, options) {
     revokeHelper(img, options)
     if (callback) {
       loadImage.transform(img, options, callback, file, {
@@ -126,18 +126,18 @@
     }
   }
 
-  loadImage.createObjectURL = function(file) {
+  loadImage.createObjectURL = function (file) {
     return urlAPI ? urlAPI.createObjectURL(file) : false
   }
 
-  loadImage.revokeObjectURL = function(url) {
+  loadImage.revokeObjectURL = function (url) {
     return urlAPI ? urlAPI.revokeObjectURL(url) : false
   }
 
   // Loads a given File object via FileReader interface,
   // invokes the callback with the event object (load or error).
   // The result can be read via event.target.result:
-  loadImage.readFile = function(file, callback, method) {
+  loadImage.readFile = function (file, callback, method) {
     if ($.FileReader) {
       var fileReader = new FileReader()
       fileReader.onload = fileReader.onerror = callback
@@ -152,7 +152,7 @@
   }
 
   if (typeof define === 'function' && define.amd) {
-    define(function() {
+    define(function () {
       return loadImage
     })
   } else if (typeof module === 'object' && module.exports) {
diff --git a/test/vendor/mocha.css b/test/vendor/mocha.css
index ec96b00..4ca8fcb 100644
--- a/test/vendor/mocha.css
+++ b/test/vendor/mocha.css
@@ -139,7 +139,6 @@ body {
 #mocha .test .html-error {
   overflow: auto;
   color: black;
-  line-height: 1.5;
   display: block;
   float: left;
   clear: left;
diff --git a/test/vendor/mocha.js b/test/vendor/mocha.js
index 508a306..5be2b9e 100644
--- a/test/vendor/mocha.js
+++ b/test/vendor/mocha.js
@@ -62,7 +62,7 @@ process.on = function(e, fn) {
   if (e === 'uncaughtException') {
     global.onerror = function(err, url, line) {
       fn(new Error(err + ' (' + url + ':' + line + ')'));
-      return !mocha.allowUncaught;
+      return !mocha.options.allowUncaught;
     };
     uncaughtExceptionHandlers.push(fn);
   }
@@ -131,7 +131,7 @@ mocha.setup = function(opts) {
     opts = {ui: opts};
   }
   for (var opt in opts) {
-    if (opts.hasOwnProperty(opt)) {
+    if (Object.prototype.hasOwnProperty.call(opts, opt)) {
       this[opt](opts[opt]);
     }
   }
@@ -1408,6 +1408,7 @@ var utils = require('./utils');
 var mocharc = require('./mocharc.json');
 var errors = require('./errors');
 var Suite = require('./suite');
+var esmUtils = utils.supportsEsModules() ? require('./esm-utils') : undefined;
 var createStatsCollector = require('./stats-collector');
 var createInvalidReporterError = errors.createInvalidReporterError;
 var createInvalidInterfaceError = errors.createInvalidInterfaceError;
@@ -1463,28 +1464,26 @@ exports.Test = require('./test');
  * @param {boolean} [options.allowUncaught] - Propagate uncaught errors?
  * @param {boolean} [options.asyncOnly] - Force `done` callback or promise?
  * @param {boolean} [options.bail] - Bail after first test failure?
- * @param {boolean} [options.checkLeaks] - If true, check leaks.
+ * @param {boolean} [options.checkLeaks] - Check for global variable leaks?
+ * @param {boolean} [options.color] - Color TTY output from reporter?
  * @param {boolean} [options.delay] - Delay root suite execution?
- * @param {boolean} [options.enableTimeouts] - Enable timeouts?
+ * @param {boolean} [options.diff] - Show diff on failure?
  * @param {string} [options.fgrep] - Test filter given string.
  * @param {boolean} [options.forbidOnly] - Tests marked `only` fail the suite?
  * @param {boolean} [options.forbidPending] - Pending tests fail the suite?
- * @param {boolean} [options.fullStackTrace] - Full stacktrace upon failure?
+ * @param {boolean} [options.fullTrace] - Full stacktrace upon failure?
  * @param {string[]} [options.global] - Variables expected in global scope.
  * @param {RegExp|string} [options.grep] - Test filter given regular expression.
  * @param {boolean} [options.growl] - Enable desktop notifications?
- * @param {boolean} [options.hideDiff] - Suppress diffs from failures?
- * @param {boolean} [options.ignoreLeaks] - Ignore global leaks?
+ * @param {boolean} [options.inlineDiffs] - Display inline diffs?
  * @param {boolean} [options.invert] - Invert test filter matches?
  * @param {boolean} [options.noHighlighting] - Disable syntax highlighting?
- * @param {string} [options.reporter] - Reporter name.
+ * @param {string|constructor} [options.reporter] - Reporter name or constructor.
  * @param {Object} [options.reporterOption] - Reporter settings object.
  * @param {number} [options.retries] - Number of times to retry failed tests.
  * @param {number} [options.slow] - Slow threshold value.
  * @param {number|string} [options.timeout] - Timeout threshold value.
  * @param {string} [options.ui] - Interface name.
- * @param {boolean} [options.color] - Color TTY output from reporter?
- * @param {boolean} [options.useInlineDiffs] - Use inline diffs?
  */
 function Mocha(options) {
   options = utils.assign({}, mocharc, options || {});
@@ -1493,31 +1492,15 @@ function Mocha(options) {
   // root suite
   this.suite = new exports.Suite('', new exports.Context(), true);
 
-  if ('useColors' in options) {
-    utils.deprecate(
-      'useColors is DEPRECATED and will be removed from a future version of Mocha. Instead, use the "color" option'
-    );
-    options.color = 'color' in options ? options.color : options.useColors;
-  }
-
   this.grep(options.grep)
     .fgrep(options.fgrep)
     .ui(options.ui)
-    .bail(options.bail)
-    .reporter(options.reporter, options.reporterOptions)
-    .useColors(options.color)
+    .reporter(
+      options.reporter,
+      options.reporterOption || options.reporterOptions // reporterOptions was previously the only way to specify options to reporter
+    )
     .slow(options.slow)
-    .useInlineDiffs(options.inlineDiffs)
-    .globals(options.globals);
-
-  if ('enableTimeouts' in options) {
-    utils.deprecate(
-      'enableTimeouts is DEPRECATED and will be removed from a future version of Mocha. Instead, use "timeout: false" to disable timeouts.'
-    );
-    if (options.enableTimeouts === false) {
-      this.timeout(0);
-    }
-  }
+    .global(options.global);
 
   // this guard exists because Suite#timeout does not consider `undefined` to be valid input
   if (typeof options.timeout !== 'undefined') {
@@ -1528,19 +1511,19 @@ function Mocha(options) {
     this.retries(options.retries);
   }
 
-  if ('diff' in options) {
-    this.hideDiff(!options.diff);
-  }
-
   [
     'allowUncaught',
     'asyncOnly',
+    'bail',
     'checkLeaks',
+    'color',
     'delay',
+    'diff',
     'forbidOnly',
     'forbidPending',
     'fullTrace',
     'growl',
+    'inlineDiffs',
     'invert'
   ].forEach(function(opt) {
     if (options[opt]) {
@@ -1553,16 +1536,13 @@ function Mocha(options) {
  * Enables or disables bailing on the first failure.
  *
  * @public
- * @see {@link https://mochajs.org/#-b---bail|CLI option}
+ * @see [CLI option](../#-bail-b)
  * @param {boolean} [bail=true] - Whether to bail on first error.
  * @returns {Mocha} this
  * @chainable
  */
 Mocha.prototype.bail = function(bail) {
-  if (!arguments.length) {
-    bail = true;
-  }
-  this.suite.bail(bail);
+  this.suite.bail(bail !== false);
   return this;
 };
 
@@ -1574,7 +1554,7 @@ Mocha.prototype.bail = function(bail) {
  * Useful for generic setup code that must be included within test suite.
  *
  * @public
- * @see {@link https://mochajs.org/#--file-file|CLI option}
+ * @see [CLI option](../#-file-filedirectoryglob)
  * @param {string} file - Pathname of file to be loaded.
  * @returns {Mocha} this
  * @chainable
@@ -1588,8 +1568,8 @@ Mocha.prototype.addFile = function(file) {
  * Sets reporter to `reporter`, defaults to "spec".
  *
  * @public
- * @see {@link https://mochajs.org/#-r---reporter-name|CLI option}
- * @see {@link https://mochajs.org/#reporters|Reporters}
+ * @see [CLI option](../#-reporter-name-r-name)
+ * @see [Reporters](../#reporters)
  * @param {String|Function} reporter - Reporter name or constructor.
  * @param {Object} [reporterOptions] - Options used to configure the reporter.
  * @returns {Mocha} this
@@ -1647,6 +1627,8 @@ Mocha.prototype.reporter = function(reporter, reporterOptions) {
     }
     this._reporter = _reporter;
   }
+  this.options.reporterOption = reporterOptions;
+  // alias option name is used in public reporters xunit/tap/progress
   this.options.reporterOptions = reporterOptions;
   return this;
 };
@@ -1655,8 +1637,8 @@ Mocha.prototype.reporter = function(reporter, reporterOptions) {
  * Sets test UI `name`, defaults to "bdd".
  *
  * @public
- * @see {@link https://mochajs.org/#-u---ui-name|CLI option}
- * @see {@link https://mochajs.org/#interfaces|Interface DSLs}
+ * @see [CLI option](../#-ui-name-u-name)
+ * @see [Interface DSLs](../#interfaces)
  * @param {string|Function} [ui=bdd] - Interface name or class.
  * @returns {Mocha} this
  * @chainable
@@ -1703,16 +1685,18 @@ Mocha.prototype.ui = function(ui) {
 };
 
 /**
- * Loads `files` prior to execution.
+ * Loads `files` prior to execution. Does not support ES Modules.
  *
  * @description
  * The implementation relies on Node's `require` to execute
  * the test interface functions and will be subject to its cache.
+ * Supports only CommonJS modules. To load ES modules, use Mocha#loadFilesAsync.
  *
  * @private
  * @see {@link Mocha#addFile}
  * @see {@link Mocha#run}
  * @see {@link Mocha#unloadFiles}
+ * @see {@link Mocha#loadFilesAsync}
  * @param {Function} [fn] - Callback invoked upon completion.
  */
 Mocha.prototype.loadFiles = function(fn) {
@@ -1727,6 +1711,49 @@ Mocha.prototype.loadFiles = function(fn) {
   fn && fn();
 };
 
+/**
+ * Loads `files` prior to execution. Supports Node ES Modules.
+ *
+ * @description
+ * The implementation relies on Node's `require` and `import` to execute
+ * the test interface functions and will be subject to its cache.
+ * Supports both CJS and ESM modules.
+ *
+ * @public
+ * @see {@link Mocha#addFile}
+ * @see {@link Mocha#run}
+ * @see {@link Mocha#unloadFiles}
+ * @returns {Promise}
+ * @example
+ *
+ * // loads ESM (and CJS) test files asynchronously, then runs root suite
+ * mocha.loadFilesAsync()
+ *   .then(() => mocha.run(failures => process.exitCode = failures ? 1 : 0))
+ *   .catch(() => process.exitCode = 1);
+ */
+Mocha.prototype.loadFilesAsync = function() {
+  var self = this;
+  var suite = this.suite;
+  this.loadAsync = true;
+
+  if (!esmUtils) {
+    return new Promise(function(resolve) {
+      self.loadFiles(resolve);
+    });
+  }
+
+  return esmUtils.loadFilesAsync(
+    this.files,
+    function(file) {
+      suite.emit(EVENT_FILE_PRE_REQUIRE, global, file, self);
+    },
+    function(file, resultModule) {
+      suite.emit(EVENT_FILE_REQUIRE, resultModule, file, self);
+      suite.emit(EVENT_FILE_POST_REQUIRE, global, file, self);
+    }
+  );
+};
+
 /**
  * Removes a previously loaded file from Node's `require` cache.
  *
@@ -1743,14 +1770,13 @@ Mocha.unloadFile = function(file) {
  * Unloads `files` from Node's `require` cache.
  *
  * @description
- * This allows files to be "freshly" reloaded, providing the ability
+ * This allows required files to be "freshly" reloaded, providing the ability
  * to reuse a Mocha instance programmatically.
+ * Note: does not clear ESM module files from the cache
  *
  * <strong>Intended for consumers &mdash; not used internally</strong>
  *
  * @public
- * @see {@link Mocha.unloadFile}
- * @see {@link Mocha#loadFiles}
  * @see {@link Mocha#run}
  * @returns {Mocha} this
  * @chainable
@@ -1794,7 +1820,7 @@ Mocha.prototype.fgrep = function(str) {
  * <strong>Previous filter value will be overwritten on each call!</strong>
  *
  * @public
- * @see {@link https://mochajs.org/#-g---grep-pattern|CLI option}
+ * @see [CLI option](../#-grep-regexp-g-regexp)
  * @see {@link Mocha#fgrep}
  * @see {@link Mocha#invert}
  * @param {RegExp|String} re - Regular expression used to select tests.
@@ -1845,32 +1871,32 @@ Mocha.prototype.invert = function() {
 /**
  * Enables or disables ignoring global leaks.
  *
+ * @deprecated since v7.0.0
  * @public
  * @see {@link Mocha#checkLeaks}
- * @param {boolean} ignoreLeaks - Whether to ignore global leaks.
+ * @param {boolean} [ignoreLeaks=false] - Whether to ignore global leaks.
  * @return {Mocha} this
  * @chainable
- * @example
- *
- * // Ignore global leaks
- * mocha.ignoreLeaks(true);
  */
 Mocha.prototype.ignoreLeaks = function(ignoreLeaks) {
-  this.options.ignoreLeaks = Boolean(ignoreLeaks);
+  utils.deprecate(
+    '"ignoreLeaks()" is DEPRECATED, please use "checkLeaks()" instead.'
+  );
+  this.options.checkLeaks = !ignoreLeaks;
   return this;
 };
 
 /**
- * Enables checking for global variables leaked while running tests.
+ * Enables or disables checking for global variables leaked while running tests.
  *
  * @public
- * @see {@link https://mochajs.org/#--check-leaks|CLI option}
- * @see {@link Mocha#ignoreLeaks}
+ * @see [CLI option](../#-check-leaks)
+ * @param {boolean} [checkLeaks=true] - Whether to check for global variable leaks.
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.checkLeaks = function() {
-  this.options.ignoreLeaks = false;
+Mocha.prototype.checkLeaks = function(checkLeaks) {
+  this.options.checkLeaks = checkLeaks !== false;
   return this;
 };
 
@@ -1878,11 +1904,13 @@ Mocha.prototype.checkLeaks = function() {
  * Displays full stack trace upon test failure.
  *
  * @public
+ * @see [CLI option](../#-full-trace)
+ * @param {boolean} [fullTrace=true] - Whether to print full stacktrace upon failure.
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.fullTrace = function() {
-  this.options.fullStackTrace = true;
+Mocha.prototype.fullTrace = function(fullTrace) {
+  this.options.fullTrace = fullTrace !== false;
   return this;
 };
 
@@ -1890,8 +1918,7 @@ Mocha.prototype.fullTrace = function() {
  * Enables desktop notification support if prerequisite software installed.
  *
  * @public
- * @see {@link Mocha#isGrowlCapable}
- * @see {@link Mocha#_growl}
+ * @see [CLI option](../#-growl-g)
  * @return {Mocha} this
  * @chainable
  */
@@ -1934,62 +1961,121 @@ Mocha.prototype._growl = growl.notify;
  * Specifies whitelist of variable names to be expected in global scope.
  *
  * @public
- * @see {@link https://mochajs.org/#--globals-names|CLI option}
+ * @see [CLI option](../#-global-variable-name)
  * @see {@link Mocha#checkLeaks}
- * @param {String[]|String} globals - Accepted global variable name(s).
+ * @param {String[]|String} global - Accepted global variable name(s).
  * @return {Mocha} this
  * @chainable
  * @example
  *
  * // Specify variables to be expected in global scope
- * mocha.globals(['jQuery', 'MyLib']);
- */
-Mocha.prototype.globals = function(globals) {
-  this.options.globals = (this.options.globals || [])
-    .concat(globals)
-    .filter(Boolean);
+ * mocha.global(['jQuery', 'MyLib']);
+ */
+Mocha.prototype.global = function(global) {
+  this.options.global = (this.options.global || [])
+    .concat(global)
+    .filter(Boolean)
+    .filter(function(elt, idx, arr) {
+      return arr.indexOf(elt) === idx;
+    });
   return this;
 };
+// for backwards compability, 'globals' is an alias of 'global'
+Mocha.prototype.globals = Mocha.prototype.global;
 
 /**
  * Enables or disables TTY color output by screen-oriented reporters.
  *
+ * @deprecated since v7.0.0
  * @public
+ * @see {@link Mocha#color}
  * @param {boolean} colors - Whether to enable color output.
  * @return {Mocha} this
  * @chainable
  */
 Mocha.prototype.useColors = function(colors) {
+  utils.deprecate('"useColors()" is DEPRECATED, please use "color()" instead.');
   if (colors !== undefined) {
-    this.options.useColors = colors;
+    this.options.color = colors;
   }
   return this;
 };
 
+/**
+ * Enables or disables TTY color output by screen-oriented reporters.
+ *
+ * @public
+ * @see [CLI option](../#-color-c-colors)
+ * @param {boolean} [color=true] - Whether to enable color output.
+ * @return {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.color = function(color) {
+  this.options.color = color !== false;
+  return this;
+};
+
 /**
  * Determines if reporter should use inline diffs (rather than +/-)
  * in test failure output.
  *
+ * @deprecated since v7.0.0
  * @public
- * @param {boolean} inlineDiffs - Whether to use inline diffs.
+ * @see {@link Mocha#inlineDiffs}
+ * @param {boolean} [inlineDiffs=false] - Whether to use inline diffs.
  * @return {Mocha} this
  * @chainable
  */
 Mocha.prototype.useInlineDiffs = function(inlineDiffs) {
-  this.options.useInlineDiffs = inlineDiffs !== undefined && inlineDiffs;
+  utils.deprecate(
+    '"useInlineDiffs()" is DEPRECATED, please use "inlineDiffs()" instead.'
+  );
+  this.options.inlineDiffs = inlineDiffs !== undefined && inlineDiffs;
+  return this;
+};
+
+/**
+ * Enables or disables reporter to use inline diffs (rather than +/-)
+ * in test failure output.
+ *
+ * @public
+ * @see [CLI option](../#-inline-diffs)
+ * @param {boolean} [inlineDiffs=true] - Whether to use inline diffs.
+ * @return {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.inlineDiffs = function(inlineDiffs) {
+  this.options.inlineDiffs = inlineDiffs !== false;
   return this;
 };
 
 /**
  * Determines if reporter should include diffs in test failure output.
  *
+ * @deprecated since v7.0.0
  * @public
- * @param {boolean} hideDiff - Whether to hide diffs.
+ * @see {@link Mocha#diff}
+ * @param {boolean} [hideDiff=false] - Whether to hide diffs.
  * @return {Mocha} this
  * @chainable
  */
 Mocha.prototype.hideDiff = function(hideDiff) {
-  this.options.hideDiff = hideDiff !== undefined && hideDiff;
+  utils.deprecate('"hideDiff()" is DEPRECATED, please use "diff()" instead.');
+  this.options.diff = !(hideDiff === true);
+  return this;
+};
+
+/**
+ * Enables or disables reporter to include diff in test failure output.
+ *
+ * @public
+ * @see [CLI option](../#-diff)
+ * @param {boolean} [diff=true] - Whether to show diff on failure.
+ * @return {Mocha} this
+ * @chainable
+ */
+Mocha.prototype.diff = function(diff) {
+  this.options.diff = diff !== false;
   return this;
 };
 
@@ -2002,9 +2088,8 @@ Mocha.prototype.hideDiff = function(hideDiff) {
  * If the value is `0`, timeouts will be disabled.
  *
  * @public
- * @see {@link https://mochajs.org/#-t---timeout-ms|CLI option}
- * @see {@link https://mochajs.org/#--no-timeouts|CLI option}
- * @see {@link https://mochajs.org/#timeouts|Timeouts}
+ * @see [CLI option](../#-timeout-ms-t-ms)
+ * @see [Timeouts](../#timeouts)
  * @see {@link Mocha#enableTimeouts}
  * @param {number|string} msecs - Timeout threshold value.
  * @return {Mocha} this
@@ -2027,7 +2112,8 @@ Mocha.prototype.timeout = function(msecs) {
  * Sets the number of times to retry failed tests.
  *
  * @public
- * @see {@link https://mochajs.org/#retry-tests|Retry Tests}
+ * @see [CLI option](../#-retries-n)
+ * @see [Retry Tests](../#retry-tests)
  * @param {number} retry - Number of times to retry failed tests.
  * @return {Mocha} this
  * @chainable
@@ -2045,7 +2131,7 @@ Mocha.prototype.retries = function(n) {
  * Sets slowness threshold value.
  *
  * @public
- * @see {@link https://mochajs.org/#-s---slow-ms|CLI option}
+ * @see [CLI option](../#-slow-ms-s-ms)
  * @param {number} msecs - Slowness threshold value.
  * @return {Mocha} this
  * @chainable
@@ -2067,8 +2153,7 @@ Mocha.prototype.slow = function(msecs) {
  * Enables or disables timeouts.
  *
  * @public
- * @see {@link https://mochajs.org/#-t---timeout-ms|CLI option}
- * @see {@link https://mochajs.org/#--no-timeouts|CLI option}
+ * @see [CLI option](../#-timeout-ms-t-ms)
  * @param {boolean} enableTimeouts - Whether to enable timeouts.
  * @return {Mocha} this
  * @chainable
@@ -2084,11 +2169,13 @@ Mocha.prototype.enableTimeouts = function(enableTimeouts) {
  * Forces all tests to either accept a `done` callback or return a promise.
  *
  * @public
+ * @see [CLI option](../#-async-only-a)
+ * @param {boolean} [asyncOnly=true] - Wether to force `done` callback or promise.
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.asyncOnly = function() {
-  this.options.asyncOnly = true;
+Mocha.prototype.asyncOnly = function(asyncOnly) {
+  this.options.asyncOnly = asyncOnly !== false;
   return this;
 };
 
@@ -2105,14 +2192,16 @@ Mocha.prototype.noHighlighting = function() {
 };
 
 /**
- * Enables uncaught errors to propagate (in browser).
+ * Enables or disables uncaught errors to propagate.
  *
  * @public
+ * @see [CLI option](../#-allow-uncaught)
+ * @param {boolean} [allowUncaught=true] - Whether to propagate uncaught errors.
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.allowUncaught = function() {
-  this.options.allowUncaught = true;
+Mocha.prototype.allowUncaught = function(allowUncaught) {
+  this.options.allowUncaught = allowUncaught !== false;
   return this;
 };
 
@@ -2124,7 +2213,7 @@ Mocha.prototype.allowUncaught = function() {
  * Used to perform asynch operations before any suites are run.
  *
  * @public
- * @see {@link https://mochajs.org/#delayed-root-suite|delayed root suite}
+ * @see [delayed root suite](../#delayed-root-suite)
  * @returns {Mocha} this
  * @chainable
  */
@@ -2137,11 +2226,13 @@ Mocha.prototype.delay = function delay() {
  * Causes tests marked `only` to fail the suite.
  *
  * @public
+ * @see [CLI option](../#-forbid-only)
+ * @param {boolean} [forbidOnly=true] - Whether tests marked `only` fail the suite.
  * @returns {Mocha} this
  * @chainable
  */
-Mocha.prototype.forbidOnly = function() {
-  this.options.forbidOnly = true;
+Mocha.prototype.forbidOnly = function(forbidOnly) {
+  this.options.forbidOnly = forbidOnly !== false;
   return this;
 };
 
@@ -2149,11 +2240,13 @@ Mocha.prototype.forbidOnly = function() {
  * Causes pending tests and tests marked `skip` to fail the suite.
  *
  * @public
+ * @see [CLI option](../#-forbid-pending)
+ * @param {boolean} [forbidPending=true] - Whether pending tests fail the suite.
  * @returns {Mocha} this
  * @chainable
  */
-Mocha.prototype.forbidPending = function() {
-  this.options.forbidPending = true;
+Mocha.prototype.forbidPending = function(forbidPending) {
+  this.options.forbidPending = forbidPending !== false;
   return this;
 };
 
@@ -2187,14 +2280,17 @@ Object.defineProperty(Mocha.prototype, 'version', {
  * the cache first!
  *
  * @public
- * @see {@link Mocha#loadFiles}
  * @see {@link Mocha#unloadFiles}
  * @see {@link Runner#run}
  * @param {DoneCB} [fn] - Callback invoked when test execution completed.
- * @return {Runner} runner instance
+ * @returns {Runner} runner instance
+ * @example
+ *
+ * // exit with non-zero status if there were test failures
+ * mocha.run(failures => process.exitCode = failures ? 1 : 0);
  */
 Mocha.prototype.run = function(fn) {
-  if (this.files.length) {
+  if (this.files.length && !this.loadAsync) {
     this.loadFiles();
   }
   var suite = this.suite;
@@ -2203,8 +2299,8 @@ Mocha.prototype.run = function(fn) {
   var runner = new exports.Runner(suite, options.delay);
   createStatsCollector(runner);
   var reporter = new this._reporter(runner, options);
-  runner.ignoreLeaks = options.ignoreLeaks !== false;
-  runner.fullStackTrace = options.fullStackTrace;
+  runner.checkLeaks = options.checkLeaks === true;
+  runner.fullStackTrace = options.fullTrace;
   runner.asyncOnly = options.asyncOnly;
   runner.allowUncaught = options.allowUncaught;
   runner.forbidOnly = options.forbidOnly;
@@ -2212,17 +2308,17 @@ Mocha.prototype.run = function(fn) {
   if (options.grep) {
     runner.grep(options.grep, options.invert);
   }
-  if (options.globals) {
-    runner.globals(options.globals);
+  if (options.global) {
+    runner.globals(options.global);
   }
   if (options.growl) {
     this._growl(runner);
   }
-  if (options.useColors !== undefined) {
-    exports.reporters.Base.useColors = options.useColors;
+  if (options.color !== undefined) {
+    exports.reporters.Base.useColors = options.color;
   }
-  exports.reporters.Base.inlineDiffs = options.useInlineDiffs;
-  exports.reporters.Base.hideDiff = options.hideDiff;
+  exports.reporters.Base.inlineDiffs = options.inlineDiffs;
+  exports.reporters.Base.hideDiff = !options.diff;
 
   function done(failures) {
     fn = fn || utils.noop;
@@ -2237,16 +2333,17 @@ Mocha.prototype.run = function(fn) {
 };
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../package.json":90,"./context":5,"./errors":6,"./growl":2,"./hook":7,"./interfaces":11,"./mocharc.json":15,"./reporters":21,"./runnable":33,"./runner":34,"./stats-collector":35,"./suite":36,"./test":37,"./utils":38,"_process":69,"escape-string-regexp":49,"path":42}],15:[function(require,module,exports){
+},{"../package.json":90,"./context":5,"./errors":6,"./esm-utils":42,"./growl":2,"./hook":7,"./interfaces":11,"./mocharc.json":15,"./reporters":21,"./runnable":33,"./runner":34,"./stats-collector":35,"./suite":36,"./test":37,"./utils":38,"_process":69,"escape-string-regexp":49,"path":42}],15:[function(require,module,exports){
 module.exports={
   "diff": true,
-  "extension": ["js"],
+  "extension": ["js", "cjs", "mjs"],
   "opts": "./test/mocha.opts",
   "package": "./package.json",
   "reporter": "spec",
   "slow": 75,
   "timeout": 2000,
-  "ui": "bdd"
+  "ui": "bdd",
+  "watch-ignore": ["node_modules", ".git"]
 }
 
 },{}],16:[function(require,module,exports){
@@ -2292,7 +2389,12 @@ exports = module.exports = Base;
  * Check if both stdio streams are associated with a tty.
  */
 
-var isatty = tty.isatty(1) && tty.isatty(2);
+var isatty = process.stdout.isTTY && process.stderr.isTTY;
+
+/**
+ * Save log references to avoid tests interfering (see GH-3604).
+ */
+var consoleLog = console.log;
 
 /**
  * Enable coloring by default, except in the browser interface.
@@ -2416,14 +2518,14 @@ exports.cursor = {
   }
 };
 
-function showDiff(err) {
+var showDiff = (exports.showDiff = function(err) {
   return (
     err &&
     err.showDiff !== false &&
     sameType(err.actual, err.expected) &&
     err.expected !== undefined
   );
-}
+});
 
 function stringifyDiffObjs(err) {
   if (!utils.isString(err.actual) || !utils.isString(err.expected)) {
@@ -2444,9 +2546,19 @@ function stringifyDiffObjs(err) {
  * @return {string} Diff
  */
 var generateDiff = (exports.generateDiff = function(actual, expected) {
-  return exports.inlineDiffs
-    ? inlineDiff(actual, expected)
-    : unifiedDiff(actual, expected);
+  try {
+    return exports.inlineDiffs
+      ? inlineDiff(actual, expected)
+      : unifiedDiff(actual, expected);
+  } catch (err) {
+    var msg =
+      '\n      ' +
+      color('diff added', '+ expected') +
+      ' ' +
+      color('diff removed', '- actual:  failed to generate Mocha diff') +
+      '\n';
+    return msg;
+  }
 });
 
 /**
@@ -2459,7 +2571,8 @@ var generateDiff = (exports.generateDiff = function(actual, expected) {
  *     Error property
  */
 exports.list = function(failures) {
-  console.log();
+  var multipleErr, multipleTest;
+  Base.consoleLog();
   failures.forEach(function(test, i) {
     // format
     var fmt =
@@ -2469,7 +2582,16 @@ exports.list = function(failures) {
 
     // msg
     var msg;
-    var err = test.err;
+    var err;
+    if (test.err && test.err.multiple) {
+      if (multipleTest !== test) {
+        multipleTest = test;
+        multipleErr = [test.err].concat(test.err.multiple);
+      }
+      err = multipleErr.shift();
+    } else {
+      err = test.err;
+    }
     var message;
     if (err.message && typeof err.message.toString === 'function') {
       message = err.message + '';
@@ -2520,7 +2642,7 @@ exports.list = function(failures) {
       testTitle += str;
     });
 
-    console.log(fmt, i + 1, testTitle, msg, stack);
+    Base.consoleLog(fmt, i + 1, testTitle, msg, stack);
   });
 };
 
@@ -2560,7 +2682,12 @@ function Base(runner, options) {
     if (showDiff(err)) {
       stringifyDiffObjs(err);
     }
-    test.err = err;
+    // more than one error per test
+    if (test.err && err instanceof Error) {
+      test.err.multiple = (test.err.multiple || []).concat(err);
+    } else {
+      test.err = err;
+    }
     failures.push(test);
   });
 }
@@ -2569,13 +2696,13 @@ function Base(runner, options) {
  * Outputs common epilogue used by many of the bundled reporters.
  *
  * @public
- * @memberof Mocha.reporters.Base
+ * @memberof Mocha.reporters
  */
 Base.prototype.epilogue = function() {
   var stats = this.stats;
   var fmt;
 
-  console.log();
+  Base.consoleLog();
 
   // passes
   fmt =
@@ -2583,26 +2710,26 @@ Base.prototype.epilogue = function() {
     color('green', ' %d passing') +
     color('light', ' (%s)');
 
-  console.log(fmt, stats.passes || 0, milliseconds(stats.duration));
+  Base.consoleLog(fmt, stats.passes || 0, milliseconds(stats.duration));
 
   // pending
   if (stats.pending) {
     fmt = color('pending', ' ') + color('pending', ' %d pending');
 
-    console.log(fmt, stats.pending);
+    Base.consoleLog(fmt, stats.pending);
   }
 
   // failures
   if (stats.failures) {
     fmt = color('fail', '  %d failing');
 
-    console.log(fmt, stats.failures);
+    Base.consoleLog(fmt, stats.failures);
 
     Base.list(this.failures);
-    console.log();
+    Base.consoleLog();
   }
 
-  console.log();
+  Base.consoleLog();
 };
 
 /**
@@ -2755,6 +2882,8 @@ function sameType(a, b) {
   return objToString.call(a) === objToString.call(b);
 }
 
+Base.consoleLog = consoleLog;
+
 Base.abstract = true;
 
 }).call(this,require('_process'))
@@ -2805,41 +2934,45 @@ function Doc(runner, options) {
       return;
     }
     ++indents;
-    console.log('%s<section class="suite">', indent());
+    Base.consoleLog('%s<section class="suite">', indent());
     ++indents;
-    console.log('%s<h1>%s</h1>', indent(), utils.escape(suite.title));
-    console.log('%s<dl>', indent());
+    Base.consoleLog('%s<h1>%s</h1>', indent(), utils.escape(suite.title));
+    Base.consoleLog('%s<dl>', indent());
   });
 
   runner.on(EVENT_SUITE_END, function(suite) {
     if (suite.root) {
       return;
     }
-    console.log('%s</dl>', indent());
+    Base.consoleLog('%s</dl>', indent());
     --indents;
-    console.log('%s</section>', indent());
+    Base.consoleLog('%s</section>', indent());
     --indents;
   });
 
   runner.on(EVENT_TEST_PASS, function(test) {
-    console.log('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
+    Base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
     var code = utils.escape(utils.clean(test.body));
-    console.log('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
+    Base.consoleLog('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
   });
 
   runner.on(EVENT_TEST_FAIL, function(test, err) {
-    console.log(
+    Base.consoleLog(
       '%s  <dt class="error">%s</dt>',
       indent(),
       utils.escape(test.title)
     );
     var code = utils.escape(utils.clean(test.body));
-    console.log(
+    Base.consoleLog(
       '%s  <dd class="error"><pre><code>%s</code></pre></dd>',
       indent(),
       code
     );
-    console.log('%s  <dd class="error">%s</dd>', indent(), utils.escape(err));
+    Base.consoleLog(
+      '%s  <dd class="error">%s</dd>',
+      indent(),
+      utils.escape(err)
+    );
   });
 }
 
@@ -2917,7 +3050,7 @@ function Dot(runner, options) {
   });
 
   runner.once(EVENT_RUN_END, function() {
-    console.log();
+    process.stdout.write('\n');
     self.epilogue();
   });
 }
@@ -3291,8 +3424,8 @@ function hideSuitesWithout(classname) {
  */
 function unhide() {
   var els = document.getElementsByClassName('suite hidden');
-  for (var i = 0; i < els.length; ++i) {
-    els[i].className = els[i].className.replace('suite hidden', 'suite');
+  while (els.length > 0) {
+    els[0].className = els[0].className.replace('suite hidden', 'suite');
   }
 }
 
@@ -3677,7 +3810,7 @@ function Landing(runner, options) {
 
   runner.once(EVENT_RUN_END, function() {
     cursor.show();
-    console.log();
+    process.stdout.write('\n');
     self.epilogue();
   });
 }
@@ -3735,7 +3868,7 @@ function List(runner, options) {
   var n = 0;
 
   runner.on(EVENT_RUN_BEGIN, function() {
-    console.log();
+    Base.consoleLog();
   });
 
   runner.on(EVENT_TEST_BEGIN, function(test) {
@@ -3744,7 +3877,7 @@ function List(runner, options) {
 
   runner.on(EVENT_TEST_PENDING, function(test) {
     var fmt = color('checkmark', '  -') + color('pending', ' %s');
-    console.log(fmt, test.fullTitle());
+    Base.consoleLog(fmt, test.fullTitle());
   });
 
   runner.on(EVENT_TEST_PASS, function(test) {
@@ -3753,12 +3886,12 @@ function List(runner, options) {
       color('pass', ' %s: ') +
       color(test.speed, '%dms');
     cursor.CR();
-    console.log(fmt, test.fullTitle(), test.duration);
+    Base.consoleLog(fmt, test.fullTitle(), test.duration);
   });
 
   runner.on(EVENT_TEST_FAIL, function(test) {
     cursor.CR();
-    console.log(color('fail', '  %d) %s'), ++n, test.fullTitle());
+    Base.consoleLog(color('fail', '  %d) %s'), ++n, test.fullTitle());
   });
 
   runner.once(EVENT_RUN_END, self.epilogue.bind(self));
@@ -4286,7 +4419,7 @@ function Progress(runner, options) {
 
   // tests started
   runner.on(EVENT_RUN_BEGIN, function() {
-    console.log();
+    process.stdout.write('\n');
     cursor.hide();
   });
 
@@ -4319,7 +4452,7 @@ function Progress(runner, options) {
   // and the failures if any
   runner.once(EVENT_RUN_END, function() {
     cursor.show();
-    console.log();
+    process.stdout.write('\n');
     self.epilogue();
   });
 }
@@ -4381,24 +4514,24 @@ function Spec(runner, options) {
   }
 
   runner.on(EVENT_RUN_BEGIN, function() {
-    console.log();
+    Base.consoleLog();
   });
 
   runner.on(EVENT_SUITE_BEGIN, function(suite) {
     ++indents;
-    console.log(color('suite', '%s%s'), indent(), suite.title);
+    Base.consoleLog(color('suite', '%s%s'), indent(), suite.title);
   });
 
   runner.on(EVENT_SUITE_END, function() {
     --indents;
     if (indents === 1) {
-      console.log();
+      Base.consoleLog();
     }
   });
 
   runner.on(EVENT_TEST_PENDING, function(test) {
     var fmt = indent() + color('pending', '  - %s');
-    console.log(fmt, test.title);
+    Base.consoleLog(fmt, test.title);
   });
 
   runner.on(EVENT_TEST_PASS, function(test) {
@@ -4408,19 +4541,19 @@ function Spec(runner, options) {
         indent() +
         color('checkmark', '  ' + Base.symbols.ok) +
         color('pass', ' %s');
-      console.log(fmt, test.title);
+      Base.consoleLog(fmt, test.title);
     } else {
       fmt =
         indent() +
         color('checkmark', '  ' + Base.symbols.ok) +
         color('pass', ' %s') +
         color(test.speed, ' (%dms)');
-      console.log(fmt, test.title, test.duration);
+      Base.consoleLog(fmt, test.title, test.duration);
     }
   });
 
   runner.on(EVENT_TEST_FAIL, function(test) {
-    console.log(indent() + color('fail', '  %d) %s'), ++n, test.title);
+    Base.consoleLog(indent() + color('fail', '  %d) %s'), ++n, test.title);
   });
 
   runner.once(EVENT_RUN_END, self.epilogue.bind(self));
@@ -4877,7 +5010,7 @@ XUnit.prototype.write = function(line) {
   } else if (typeof process === 'object' && process.stdout) {
     process.stdout.write(line + '\n');
   } else {
-    console.log(line);
+    Base.consoleLog(line);
   }
 };
 
@@ -4898,9 +5031,9 @@ XUnit.prototype.test = function(test) {
   if (test.state === STATE_FAILED) {
     var err = test.err;
     var diff =
-      Base.hideDiff || !err.actual || !err.expected
-        ? ''
-        : '\n' + Base.generateDiff(err.actual, err.expected);
+      !Base.hideDiff && Base.showDiff(err)
+        ? '\n' + Base.generateDiff(err.actual, err.expected)
+        : '';
     this.write(
       tag(
         'testcase',
@@ -5090,7 +5223,8 @@ Runnable.prototype.enableTimeouts = function(enabled) {
  * @public
  */
 Runnable.prototype.skip = function() {
-  throw new Pending('sync skip');
+  this.pending = true;
+  throw new Pending('sync skip; aborting execution');
 };
 
 /**
@@ -5289,43 +5423,45 @@ Runnable.prototype.run = function(fn) {
     fn(err);
   }
 
-  // for .resetTimeout()
+  // for .resetTimeout() and Runner#uncaught()
   this.callback = done;
 
+  if (this.fn && typeof this.fn.call !== 'function') {
+    done(
+      new TypeError(
+        'A runnable must be passed a function as its second argument.'
+      )
+    );
+    return;
+  }
+
   // explicit async with `done` argument
   if (this.async) {
     this.resetTimeout();
 
     // allows skip() to be used in an explicit async context
     this.skip = function asyncSkip() {
-      done(new Pending('async skip call'));
-      // halt execution.  the Runnable will be marked pending
-      // by the previous call, and the uncaught handler will ignore
-      // the failure.
+      this.pending = true;
+      done();
+      // halt execution, the uncaught handler will ignore the failure.
       throw new Pending('async skip; aborting execution');
     };
 
-    if (this.allowUncaught) {
-      return callFnAsync(this.fn);
-    }
     try {
       callFnAsync(this.fn);
     } catch (err) {
+      // handles async runnables which actually run synchronously
       emitted = true;
+      if (err instanceof Pending) {
+        return; // done() is already called in this.skip()
+      } else if (this.allowUncaught) {
+        throw err;
+      }
       done(Runnable.toValueOrError(err));
     }
     return;
   }
 
-  if (this.allowUncaught) {
-    if (this.isPending()) {
-      done();
-    } else {
-      callFn(this.fn);
-    }
-    return;
-  }
-
   // sync or promise-returning
   try {
     if (this.isPending()) {
@@ -5335,6 +5471,11 @@ Runnable.prototype.run = function(fn) {
     }
   } catch (err) {
     emitted = true;
+    if (err instanceof Pending) {
+      return done();
+    } else if (this.allowUncaught) {
+      throw err;
+    }
     done(Runnable.toValueOrError(err));
   }
 
@@ -5479,8 +5620,9 @@ var sQuote = utils.sQuote;
 var stackFilter = utils.stackTraceFilter();
 var stringify = utils.stringify;
 var type = utils.type;
-var createInvalidExceptionError = require('./errors')
-  .createInvalidExceptionError;
+var errors = require('./errors');
+var createInvalidExceptionError = errors.createInvalidExceptionError;
+var createUnsupportedError = errors.createUnsupportedError;
 
 /**
  * Non-enumerable globals.
@@ -5589,6 +5731,11 @@ function Runner(suite, delay) {
   this.total = suite.total();
   this.failures = 0;
   this.on(constants.EVENT_TEST_END, function(test) {
+    if (test.retriedTest() && test.parent) {
+      var idx =
+        test.parent.tests && test.parent.tests.indexOf(test.retriedTest());
+      if (idx > -1) test.parent.tests[idx] = test;
+    }
     self.checkGlobals(test);
   });
   this.on(constants.EVENT_HOOK_END, function(hook) {
@@ -5596,7 +5743,7 @@ function Runner(suite, delay) {
   });
   this._defaultGrep = /.*/;
   this.grep(this._defaultGrep);
-  this.globals(this.globalProps().concat(extraGlobals()));
+  this.globals(this.globalProps());
 }
 
 /**
@@ -5699,7 +5846,7 @@ Runner.prototype.globals = function(arr) {
  * @private
  */
 Runner.prototype.checkGlobals = function(test) {
-  if (this.ignoreLeaks) {
+  if (!this.checkLeaks) {
     return;
   }
   var ok = this._globals;
@@ -5770,8 +5917,7 @@ Runner.prototype.fail = function(test, err) {
  * - Failed `before each` hook skips remaining tests in a
  *   suite and jumps to corresponding `after each` hook,
  *   which is run only once
- * - Failed `after` hook does not alter
- *   execution order
+ * - Failed `after` hook does not alter execution order
  * - Failed `after each` hook skips remaining tests in a
  *   suite and subsuites, but executes other `after each`
  *   hooks
@@ -5841,34 +5987,37 @@ Runner.prototype.hook = function(name, fn) {
       if (testError) {
         self.fail(self.test, testError);
       }
-      if (err) {
-        if (err instanceof Pending) {
-          if (name === HOOK_TYPE_AFTER_ALL) {
-            utils.deprecate(
-              'Skipping a test within an "after all" hook is DEPRECATED and will throw an exception in a future version of Mocha. ' +
-                'Use a return statement or other means to abort hook execution.'
-            );
+      // conditional skip
+      if (hook.pending) {
+        if (name === HOOK_TYPE_AFTER_EACH) {
+          // TODO define and implement use case
+          if (self.test) {
+            self.test.pending = true;
           }
-          if (name === HOOK_TYPE_BEFORE_EACH || name === HOOK_TYPE_AFTER_EACH) {
-            if (self.test) {
-              self.test.pending = true;
-            }
-          } else {
-            suite.tests.forEach(function(test) {
-              test.pending = true;
-            });
-            suite.suites.forEach(function(suite) {
-              suite.pending = true;
-            });
-            // a pending hook won't be executed twice.
-            hook.pending = true;
+        } else if (name === HOOK_TYPE_BEFORE_EACH) {
+          if (self.test) {
+            self.test.pending = true;
           }
+          self.emit(constants.EVENT_HOOK_END, hook);
+          hook.pending = false; // activates hook for next test
+          return fn(new Error('abort hookDown'));
+        } else if (name === HOOK_TYPE_BEFORE_ALL) {
+          suite.tests.forEach(function(test) {
+            test.pending = true;
+          });
+          suite.suites.forEach(function(suite) {
+            suite.pending = true;
+          });
         } else {
-          self.failHook(hook, err);
-
-          // stop executing hooks, notify callee of hook err
-          return fn(err);
+          hook.pending = false;
+          var errForbid = createUnsupportedError('`this.skip` forbidden');
+          self.failHook(hook, errForbid);
+          return fn(errForbid);
         }
+      } else if (err) {
+        self.failHook(hook, err);
+        // stop executing hooks, notify callee of hook err
+        return fn(err);
       }
       self.emit(constants.EVENT_HOOK_END, hook);
       delete hook.ctx.currentTest;
@@ -5980,6 +6129,9 @@ Runner.prototype.runTest = function(fn) {
     test.asyncOnly = true;
   }
   test.on('error', function(err) {
+    if (err instanceof Pending) {
+      return;
+    }
     self.fail(test, err);
   });
   if (this.allowUncaught) {
@@ -6075,6 +6227,7 @@ Runner.prototype.runTests = function(suite, fn) {
       return;
     }
 
+    // static skip, no hooks are executed
     if (test.isPending()) {
       if (self.forbidPending) {
         test.isPending = alwaysFalse;
@@ -6090,6 +6243,7 @@ Runner.prototype.runTests = function(suite, fn) {
     // execute test and hook(s)
     self.emit(constants.EVENT_TEST_BEGIN, (self.test = test));
     self.hookDown(HOOK_TYPE_BEFORE_EACH, function(err, errSuite) {
+      // conditional skip within beforeEach
       if (test.isPending()) {
         if (self.forbidPending) {
           test.isPending = alwaysFalse;
@@ -6099,7 +6253,13 @@ Runner.prototype.runTests = function(suite, fn) {
           self.emit(constants.EVENT_TEST_PENDING, test);
         }
         self.emit(constants.EVENT_TEST_END, test);
-        return next();
+        // skip inner afterEach hooks below errSuite level
+        var origSuite = self.suite;
+        self.suite = errSuite || self.suite;
+        return self.hookUp(HOOK_TYPE_AFTER_EACH, function(e, eSuite) {
+          self.suite = origSuite;
+          next(e, eSuite);
+        });
       }
       if (err) {
         return hookErr(err, errSuite, false);
@@ -6107,14 +6267,20 @@ Runner.prototype.runTests = function(suite, fn) {
       self.currentRunnable = self.test;
       self.runTest(function(err) {
         test = self.test;
-        if (err) {
-          var retry = test.currentRetry();
-          if (err instanceof Pending && self.forbidPending) {
+        // conditional skip within it
+        if (test.pending) {
+          if (self.forbidPending) {
+            test.isPending = alwaysFalse;
             self.fail(test, new Error('Pending test forbidden'));
-          } else if (err instanceof Pending) {
-            test.pending = true;
+            delete test.isPending;
+          } else {
             self.emit(constants.EVENT_TEST_PENDING, test);
-          } else if (retry < test.retries()) {
+          }
+          self.emit(constants.EVENT_TEST_END, test);
+          return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
+        } else if (err) {
+          var retry = test.currentRetry();
+          if (retry < test.retries()) {
             var clonedTest = test.clone();
             clonedTest.currentRetry(retry + 1);
             tests.unshift(clonedTest);
@@ -6128,11 +6294,6 @@ Runner.prototype.runTests = function(suite, fn) {
             self.fail(test, err);
           }
           self.emit(constants.EVENT_TEST_END, test);
-
-          if (err instanceof Pending) {
-            return next();
-          }
-
           return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
         }
 
@@ -6164,7 +6325,6 @@ Runner.prototype.runSuite = function(suite, fn) {
   var i = 0;
   var self = this;
   var total = this.grepTotal(suite);
-  var afterAllHookCalled = false;
 
   debug('run suite %s', suite.fullTitle());
 
@@ -6212,21 +6372,13 @@ Runner.prototype.runSuite = function(suite, fn) {
     self.suite = suite;
     self.nextSuite = next;
 
-    if (afterAllHookCalled) {
-      fn(errSuite);
-    } else {
-      // mark that the afterAll block has been called once
-      // and so can be skipped if there is an error in it.
-      afterAllHookCalled = true;
+    // remove reference to test
+    delete self.test;
 
-      // remove reference to test
-      delete self.test;
-
-      self.hook(HOOK_TYPE_AFTER_ALL, function() {
-        self.emit(constants.EVENT_SUITE_END, suite);
-        fn(errSuite);
-      });
-    }
+    self.hook(HOOK_TYPE_AFTER_ALL, function() {
+      self.emit(constants.EVENT_SUITE_END, suite);
+      fn(errSuite);
+    });
   }
 
   this.nextSuite = next;
@@ -6240,7 +6392,7 @@ Runner.prototype.runSuite = function(suite, fn) {
 };
 
 /**
- * Handle uncaught exceptions.
+ * Handle uncaught exceptions within runner.
  *
  * @param {Error} err
  * @private
@@ -6249,6 +6401,11 @@ Runner.prototype.uncaught = function(err) {
   if (err instanceof Pending) {
     return;
   }
+  // browser does not exit script when throwing in global.onerror()
+  if (this.allowUncaught && !process.browser) {
+    throw err;
+  }
+
   if (err) {
     debug('uncaught exception %O', err);
   } else {
@@ -6284,43 +6441,37 @@ Runner.prototype.uncaught = function(err) {
 
   runnable.clearTimeout();
 
-  // Ignore errors if already failed or pending
-  // See #3226
-  if (runnable.isFailed() || runnable.isPending()) {
+  if (runnable.isFailed()) {
+    // Ignore error if already failed
+    return;
+  } else if (runnable.isPending()) {
+    // report 'pending test' retrospectively as failed
+    runnable.isPending = alwaysFalse;
+    this.fail(runnable, err);
+    delete runnable.isPending;
     return;
   }
+
   // we cannot recover gracefully if a Runnable has already passed
   // then fails asynchronously
-  var alreadyPassed = runnable.isPassed();
-  // this will change the state to "failed" regardless of the current value
-  this.fail(runnable, err);
-  if (!alreadyPassed) {
-    // recover from test
-    if (runnable.type === constants.EVENT_TEST_BEGIN) {
-      this.emit(constants.EVENT_TEST_END, runnable);
-      this.hookUp(HOOK_TYPE_AFTER_EACH, this.next);
-      return;
-    }
+  if (runnable.isPassed()) {
+    this.fail(runnable, err);
+    this.abort();
+  } else {
     debug(runnable);
-
-    // recover from hooks
-    var errSuite = this.suite;
-
-    // XXX how about a less awful way to determine this?
-    // if hook failure is in afterEach block
-    if (runnable.fullTitle().indexOf('after each') > -1) {
-      return this.hookErr(err, errSuite, true);
-    }
-    // if hook failure is in beforeEach block
-    if (runnable.fullTitle().indexOf('before each') > -1) {
-      return this.hookErr(err, errSuite, false);
-    }
-    // if hook failure is in after or before blocks
-    return this.nextSuite(errSuite);
+    return runnable.callback(err);
   }
+};
 
-  // bail
-  this.emit(constants.EVENT_RUN_END);
+/**
+ * Handle uncaught exceptions after runner's end event.
+ *
+ * @param {Error} err
+ * @private
+ */
+Runner.prototype.uncaughtEnd = function uncaughtEnd(err) {
+  if (err instanceof Pending) return;
+  throw err;
 };
 
 /**
@@ -6370,10 +6521,12 @@ Runner.prototype.run = function(fn) {
   this.on(constants.EVENT_RUN_END, function() {
     debug(constants.EVENT_RUN_END);
     process.removeListener('uncaughtException', uncaught);
+    process.on('uncaughtException', self.uncaughtEnd);
     fn(self.failures);
   });
 
   // uncaught exception
+  process.removeListener('uncaughtException', self.uncaughtEnd);
   process.on('uncaughtException', uncaught);
 
   if (this._delay) {
@@ -6382,7 +6535,9 @@ Runner.prototype.run = function(fn) {
     this.emit(constants.EVENT_DELAY_BEGIN, rootSuite);
     rootSuite.once(EVENT_ROOT_SUITE_RUN, start);
   } else {
-    start();
+    Runner.immediately(function() {
+      start();
+    });
   }
 
   return this;
@@ -6471,30 +6626,6 @@ function thrown2Error(err) {
   );
 }
 
-/**
- * Array of globals dependent on the environment.
- *
- * @return {Array}
- * @deprecated
- * @todo remove; long since unsupported
- * @private
- */
-function extraGlobals() {
-  if (typeof process === 'object' && typeof process.version === 'string') {
-    var parts = process.version.split('.');
-    var nodeVersion = parts.reduce(function(a, v) {
-      return (a << 8) | v;
-    });
-
-    // 'errno' was renamed to process._errno in v0.9.11.
-    if (nodeVersion < 0x00090b) {
-      return ['errno'];
-    }
-  }
-
-  return [];
-}
-
 Runner.constants = constants;
 
 /**
@@ -7274,6 +7405,18 @@ function Test(title, fn) {
  */
 utils.inherits(Test, Runnable);
 
+/**
+ * Set or get retried test
+ *
+ * @private
+ */
+Test.prototype.retriedTest = function(n) {
+  if (!arguments.length) {
+    return this._retriedTest;
+  }
+  this._retriedTest = n;
+};
+
 Test.prototype.clone = function() {
   var test = new Test(this.title, this.fn);
   test.timeout(this.timeout());
@@ -7281,6 +7424,7 @@ Test.prototype.clone = function() {
   test.enableTimeouts(this.enableTimeouts());
   test.retries(this.retries());
   test.currentRetry(this.currentRetry());
+  test.retriedTest(this.retriedTest() || this);
   test.globals(this.globals());
   test.parent = this.parent;
   test.file = this.file;
@@ -7345,80 +7489,6 @@ exports.isString = function(obj) {
   return typeof obj === 'string';
 };
 
-/**
- * Watch the given `files` for changes
- * and invoke `fn(file)` on modification.
- *
- * @private
- * @param {Array} files
- * @param {Function} fn
- */
-exports.watch = function(files, fn) {
-  var options = {interval: 100};
-  var debug = require('debug')('mocha:watch');
-  files.forEach(function(file) {
-    debug('file %s', file);
-    fs.watchFile(file, options, function(curr, prev) {
-      if (prev.mtime < curr.mtime) {
-        fn(file);
-      }
-    });
-  });
-};
-
-/**
- * Predicate to screen `pathname` for further consideration.
- *
- * @description
- * Returns <code>false</code> for pathname referencing:
- * <ul>
- *   <li>'npm' package installation directory
- *   <li>'git' version control directory
- * </ul>
- *
- * @private
- * @param {string} pathname - File or directory name to screen
- * @return {boolean} whether pathname should be further considered
- * @example
- * ['node_modules', 'test.js'].filter(considerFurther); // => ['test.js']
- */
-function considerFurther(pathname) {
-  var ignore = ['node_modules', '.git'];
-
-  return !~ignore.indexOf(pathname);
-}
-
-/**
- * Lookup files in the given `dir`.
- *
- * @description
- * Filenames are returned in _traversal_ order by the OS/filesystem.
- * **Make no assumption that the names will be sorted in any fashion.**
- *
- * @private
- * @param {string} dir
- * @param {string[]} [exts=['js']]
- * @param {Array} [ret=[]]
- * @return {Array}
- */
-exports.files = function(dir, exts, ret) {
-  ret = ret || [];
-  exts = exts || ['js'];
-
-  fs.readdirSync(dir)
-    .filter(considerFurther)
-    .forEach(function(dirent) {
-      var pathname = path.join(dir, dirent);
-      if (fs.lstatSync(pathname).isDirectory()) {
-        exports.files(pathname, exts, ret);
-      } else if (hasMatchingExtname(pathname, exts)) {
-        ret.push(pathname);
-      }
-    });
-
-  return ret;
-};
-
 /**
  * Compute a slug from the given `str`.
  *
@@ -7854,32 +7924,41 @@ function isHiddenOnUnix(pathname) {
  *
  * @public
  * @memberof Mocha.utils
- * @todo Fix extension handling
  * @param {string} filepath - Base path to start searching from.
- * @param {string[]} extensions - File extensions to look for.
- * @param {boolean} recursive - Whether to recurse into subdirectories.
+ * @param {string[]} [extensions=[]] - File extensions to look for.
+ * @param {boolean} [recursive=false] - Whether to recurse into subdirectories.
  * @return {string[]} An array of paths.
  * @throws {Error} if no files match pattern.
  * @throws {TypeError} if `filepath` is directory and `extensions` not provided.
  */
 exports.lookupFiles = function lookupFiles(filepath, extensions, recursive) {
+  extensions = extensions || [];
+  recursive = recursive || false;
   var files = [];
   var stat;
 
   if (!fs.existsSync(filepath)) {
-    if (fs.existsSync(filepath + '.js')) {
-      filepath += '.js';
+    var pattern;
+    if (glob.hasMagic(filepath)) {
+      // Handle glob as is without extensions
+      pattern = filepath;
     } else {
-      // Handle glob
-      files = glob.sync(filepath);
-      if (!files.length) {
-        throw createNoFilesMatchPatternError(
-          'Cannot find any files matching pattern ' + exports.dQuote(filepath),
-          filepath
-        );
-      }
-      return files;
+      // glob pattern e.g. 'filepath+(.js|.ts)'
+      var strExtensions = extensions
+        .map(function(v) {
+          return '.' + v;
+        })
+        .join('|');
+      pattern = filepath + '+(' + strExtensions + ')';
+    }
+    files = glob.sync(pattern, {nodir: true});
+    if (!files.length) {
+      throw createNoFilesMatchPatternError(
+        'Cannot find any files matching pattern ' + exports.dQuote(filepath),
+        filepath
+      );
     }
+    return files;
   }
 
   // Handle file
@@ -7910,7 +7989,7 @@ exports.lookupFiles = function lookupFiles(filepath, extensions, recursive) {
       // ignore error
       return;
     }
-    if (!extensions) {
+    if (!extensions.length) {
       throw createMissingArgumentError(
         util.format(
           'Argument %s required when argument %s is a directory',
@@ -8006,7 +8085,8 @@ exports.stackTraceFilter = function() {
   function isMochaInternal(line) {
     return (
       ~line.indexOf('node_modules' + slash + 'mocha' + slash) ||
-      ~line.indexOf(slash + 'mocha.js')
+      ~line.indexOf(slash + 'mocha.js') ||
+      ~line.indexOf(slash + 'mocha.min.js')
     );
   }
 
@@ -8188,8 +8268,30 @@ exports.defineConstants = function(obj) {
   return Object.freeze(exports.createMap(obj));
 };
 
+/**
+ * Whether current version of Node support ES modules
+ *
+ * @description
+ * Versions prior to 10 did not support ES Modules, and version 10 has an old incompatibile version of ESM.
+ * This function returns whether Node.JS has ES Module supports that is compatible with Mocha's needs,
+ * which is version >=12.11.
+ *
+ * @returns {Boolean} whether the current version of Node.JS supports ES Modules in a way that is compatible with Mocha
+ */
+exports.supportsEsModules = function() {
+  if (!process.browser && process.versions && process.versions.node) {
+    var versionFields = process.versions.node.split('.');
+    var major = +versionFields[0];
+    var minor = +versionFields[1];
+
+    if (major >= 13 || (major === 12 && minor >= 11)) {
+      return true;
+    }
+  }
+};
+
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"./errors":6,"_process":69,"buffer":43,"debug":45,"fs":42,"glob":42,"he":54,"object.assign":65,"path":42,"util":89}],39:[function(require,module,exports){
+},{"./errors":6,"_process":69,"buffer":43,"fs":42,"glob":42,"he":54,"object.assign":65,"path":42,"util":89}],39:[function(require,module,exports){
 'use strict'
 
 exports.byteLength = byteLength
@@ -18069,7 +18171,7 @@ function hasOwnProperty(obj, prop) {
 },{"./support/isBuffer":88,"_process":69,"inherits":56}],90:[function(require,module,exports){
 module.exports={
   "name": "mocha",
-  "version": "6.1.4",
+  "version": "7.1.1",
   "homepage": "https://mochajs.org/",
   "notifyLogo": "https://ibin.co/4QuRuGjXvl36.png"
 }

From ae2d7c39ffd1d3178439bcafb0416838af1ccc63 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 26 Mar 2020 20:42:30 +0900
Subject: [PATCH 54/85] 3.18.0

---
 js/canvas-to-blob.min.js     | 2 +-
 js/canvas-to-blob.min.js.map | 2 +-
 package-lock.json            | 2 +-
 package.json                 | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/js/canvas-to-blob.min.js b/js/canvas-to-blob.min.js
index cfff76c..171a417 100644
--- a/js/canvas-to-blob.min.js
+++ b/js/canvas-to-blob.min.js
@@ -1,2 +1,2 @@
-!function(t){"use strict";var r=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,f=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),b=f&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),d=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,B=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,a=(f||d)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,r,a,i,l,u,c;if(!(e=t.match(B)))throw new Error("invalid data URI");for(o=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),n=!!e[4],r=t.slice(e[0].length),a=n?atob(r):decodeURIComponent(r),i=new ArrayBuffer(a.length),l=new Uint8Array(i),u=0;u<a.length;u+=1)l[u]=a.charCodeAt(u);return f?new Blob([b?l:i],{type:o}):((c=new d).append(i),c.getBlob(o))};t.HTMLCanvasElement&&!r.toBlob&&(r.mozGetAsFile?r.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&r.toDataURL&&a?t(a(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:r.toDataURL&&a&&(r.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(a(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return a}):"object"==typeof module&&module.exports?module.exports=a:t.dataURLtoBlob=a}(window);
+!function(t){"use strict";var r=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,f=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),b=f&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),d=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,B=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,a=(f||d)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,r,a,i,l,u,c;if(!(e=t.match(B)))throw new Error("invalid data URI");for(o=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),n=!!e[4],r=t.slice(e[0].length),a=(n?atob:decodeURIComponent)(r),i=new ArrayBuffer(a.length),l=new Uint8Array(i),u=0;u<a.length;u+=1)l[u]=a.charCodeAt(u);return f?new Blob([b?l:i],{type:o}):((c=new d).append(i),c.getBlob(o))};t.HTMLCanvasElement&&!r.toBlob&&(r.mozGetAsFile?r.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&r.toDataURL&&a?t(a(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:r.toDataURL&&a&&(r.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(a(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return a}):"object"==typeof module&&module.exports?module.exports=a:t.dataURLtoBlob=a}(window);
 //# sourceMappingURL=canvas-to-blob.min.js.map
\ No newline at end of file
diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 11b7e54..8b42a83 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBC,SAAUA,GACT,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAASU,GACP,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,EAFEF,EAEWL,KAAKM,GAGLU,mBAAmBV,GAGlCE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,KAAK,CAACG,EAA4BkB,EAAWD,GAAc,CACpEU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAASE,EAAUL,EAAMM,GAChD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAASE,EAAUL,EAAMM,GAChD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EA3G1B,CA6GEhB"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,GACV,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,GAFEF,EAEWL,KAGAgB,oBAHKV,GAMpBE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,KAAK,CAACG,EAA4BkB,EAAWD,GAAc,CACpEU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EA3G1B,CA6GEhB"}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 8f43364..8688b8b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.17.0",
+  "version": "3.18.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index e057b62..d0031ab 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.17.0",
+  "version": "3.18.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 982d6126b00bcba6a91f1fe645fc83fbe6587da7 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 12 Apr 2020 00:13:56 +0900
Subject: [PATCH 55/85] Update loadImage vendor dependency.

---
 test/vendor/load-image-scale.js | 42 +++++++++++--------
 test/vendor/load-image.js       | 71 +++++++++++++++++++--------------
 2 files changed, 67 insertions(+), 46 deletions(-)

diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index 4de6d02..57ac273 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -85,21 +85,26 @@
     destX,
     destY,
     destWidth,
-    destHeight
+    destHeight,
+    options
   ) {
-    canvas
-      .getContext('2d')
-      .drawImage(
-        img,
-        sourceX,
-        sourceY,
-        sourceWidth,
-        sourceHeight,
-        destX,
-        destY,
-        destWidth,
-        destHeight
-      )
+    var ctx = canvas.getContext('2d')
+    if (options.imageSmoothingEnabled === false) {
+      ctx.imageSmoothingEnabled = false
+    } else if (options.imageSmoothingQuality) {
+      ctx.imageSmoothingQuality = options.imageSmoothingQuality
+    }
+    ctx.drawImage(
+      img,
+      sourceX,
+      sourceY,
+      sourceWidth,
+      sourceHeight,
+      destX,
+      destY,
+      destWidth,
+      destHeight
+    )
     return canvas
   }
 
@@ -246,7 +251,8 @@
             0,
             0,
             canvas.width,
-            canvas.height
+            canvas.height,
+            options
           )
           sourceX = 0
           sourceY = 0
@@ -266,7 +272,8 @@
             0,
             0,
             sourceWidth,
-            sourceHeight
+            sourceHeight,
+            options
           )
         }
       }
@@ -283,7 +290,8 @@
         0,
         0,
         destWidth,
-        destHeight
+        destHeight,
+        options
       )
     }
     img.width = destWidth
diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index a93ea13..50a36cd 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -27,30 +27,38 @@
   function loadImage(file, callback, options) {
     var img = document.createElement('img')
     var url
+    /**
+     * Callback for the fetchBlob call.
+     *
+     * @param {Blob} blob Blob object
+     * @param {Error} err Error object
+     */
+    function fetchBlobCallback(blob, err) {
+      if (err) console.log(err) // eslint-disable-line no-console
+      if (blob && loadImage.isInstanceOf('Blob', blob)) {
+        // eslint-disable-next-line no-param-reassign
+        file = blob
+        url = loadImage.createObjectURL(file)
+      } else {
+        url = file
+        if (options && options.crossOrigin) {
+          img.crossOrigin = options.crossOrigin
+        }
+      }
+      img.src = url
+    }
     img.onerror = function (event) {
-      return loadImage.onerror(img, event, file, callback, options)
+      return loadImage.onerror(img, event, file, url, callback, options)
     }
     img.onload = function (event) {
-      return loadImage.onload(img, event, file, callback, options)
+      return loadImage.onload(img, event, file, url, callback, options)
     }
     if (typeof file === 'string') {
-      loadImage.fetchBlob(
-        file,
-        function (blob) {
-          if (blob && loadImage.isInstanceOf('Blob', blob)) {
-            // eslint-disable-next-line no-param-reassign
-            file = blob
-            url = loadImage.createObjectURL(file)
-          } else {
-            url = file
-            if (options && options.crossOrigin) {
-              img.crossOrigin = options.crossOrigin
-            }
-          }
-          img.src = url
-        },
-        options
-      )
+      if (loadImage.hasMetaOption(options)) {
+        loadImage.fetchBlob(file, fetchBlobCallback, options)
+      } else {
+        fetchBlobCallback()
+      }
       return img
     } else if (
       loadImage.isInstanceOf('Blob', file) ||
@@ -58,7 +66,7 @@
       // (Firefox 3.6) support the File API but not Blobs:
       loadImage.isInstanceOf('File', file)
     ) {
-      url = img._objectURL = loadImage.createObjectURL(file)
+      url = loadImage.createObjectURL(file)
       if (url) {
         img.src = url
         return img
@@ -83,16 +91,21 @@
   /**
    * Helper function to revoke an object URL
    *
-   * @param {HTMLImageElement} img Image element
+   * @param {string} url Blob Object URL
    * @param {object} [options] Options object
    */
-  function revokeHelper(img, options) {
-    if (img._objectURL && !(options && options.noRevoke)) {
-      loadImage.revokeObjectURL(img._objectURL)
-      delete img._objectURL
+  function revokeHelper(url, options) {
+    if (url && url.slice(0, 5) === 'blob:' && !(options && options.noRevoke)) {
+      loadImage.revokeObjectURL(url)
     }
   }
 
+  // Determines if meta data should be loaded automatically.
+  // Requires the load image meta extension to load meta data.
+  loadImage.hasMetaOption = function (options) {
+    return options && options.meta
+  }
+
   // If the callback given to this function returns a blob, it is used as image
   // source instead of the original url and overrides the file argument used in
   // the onload and onerror event callbacks:
@@ -109,15 +122,15 @@
     callback(img, data)
   }
 
-  loadImage.onerror = function (img, event, file, callback, options) {
-    revokeHelper(img, options)
+  loadImage.onerror = function (img, event, file, url, callback, options) {
+    revokeHelper(url, options)
     if (callback) {
       callback.call(img, event)
     }
   }
 
-  loadImage.onload = function (img, event, file, callback, options) {
-    revokeHelper(img, options)
+  loadImage.onload = function (img, event, file, url, callback, options) {
+    revokeHelper(url, options)
     if (callback) {
       loadImage.transform(img, options, callback, file, {
         originalWidth: img.naturalWidth || img.width,

From a83c34db3f4d1a92f26d59a86355a32c55acf6b5 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 12 Apr 2020 00:14:28 +0900
Subject: [PATCH 56/85] 3.19.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 8688b8b..979ac5f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.18.0",
+  "version": "3.19.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index d0031ab..cfceecf 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.18.0",
+  "version": "3.19.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 930c1b7fa472f59fbfb08613b2b0b5754a071e0c Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 19 Apr 2020 02:53:03 +0900
Subject: [PATCH 57/85] Remove obsolete PhantomJS config.

---
 test/index.html | 1 -
 1 file changed, 1 deletion(-)

diff --git a/test/index.html b/test/index.html
index f24952c..65712e2 100644
--- a/test/index.html
+++ b/test/index.html
@@ -26,7 +26,6 @@
     <script src="http://github.com/vendor/mocha.js"></script>
     <script src="http://github.com/vendor/chai.js"></script>
     <script>
-      window.initMochaPhantomJS && initMochaPhantomJS()
       mocha.setup('bdd')
     </script>
     <script src="http://github.com/vendor/load-image.js"></script>

From 980191902bcaf442303cb8f457ddd7af3ec09bbc Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 19 Apr 2020 02:55:17 +0900
Subject: [PATCH 58/85] Use a black and white sample image.

---
 test/test.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/test/test.js b/test/test.js
index bd3fb25..3f1f36a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -21,11 +21,14 @@
     })
   }
 
-  // 80x60px GIF image (color black, base64 data):
+  // black 60x40 GIF
+  // Image data layout (B=black, F=white), scaled to 3x2:
+  // BFF
+  // BBB
   var b64Data =
-    'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
-    'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
-    'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7'
+    'R0lGODlhPAAoAPECAAAAAP///wAAAAAAACH5BAUAAAIALAAAAAA8ACgAQAJihI+Zwe0Po3Sq' +
+    '1okztvzoDwbdSJbmiaaqGbbTCrjyA9f2jef6Ts6+uPrNYEIZsdg6IkG8pvMJjUqnVOgypLxm' +
+    'stpXsLv9gr2q8UZshnDTjTUbWH7TqvS6/Y7P6/f8vv9vVwAAOw=='
   var imageUrl = 'data:image/gif;base64,' + b64Data
   var blob = dataURLtoBlob(imageUrl)
 

From 547f0999c0baf1024c1624aa3e085b1b22356656 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 19 Apr 2020 02:56:10 +0900
Subject: [PATCH 59/85] Test both dataURLtoBlob and canvas.toBlob.

Add tests for the quality parameter.
---
 test/test.js | 225 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 225 insertions(+)

diff --git a/test/test.js b/test/test.js
index 3f1f36a..f88a1fa 100644
--- a/test/test.js
+++ b/test/test.js
@@ -33,6 +33,155 @@
   var blob = dataURLtoBlob(imageUrl)
 
   describe('canvas.toBlob', function () {
+    it('Converts a canvas element to a blob and passes it to the callback function', function (done) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            expect(newBlob).to.be.a.instanceOf(Blob)
+            done()
+          })
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Converts a canvas element to a PNG blob', function (done) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            expect(newBlob.type).to.equal('image/png')
+            done()
+          }, 'image/png')
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Converts a canvas element to a JPG blob', function (done) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            expect(newBlob.type).to.equal('image/jpeg')
+            done()
+          }, 'image/jpeg')
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Converts a canvas element to a JPG blob with lower quality', function (done) {
+      var results = {}
+      /**
+       * Compares blob sizes when both have been converted.
+       */
+      function compare() {
+        if (results.defaultQualityBlob && results.lowerQualityBlob) {
+          expect(results.lowerQualityBlob.size).to.be.below(
+            results.defaultQualityBlob.size
+          )
+          done()
+        }
+      }
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            results.defaultQualityBlob = newBlob
+            compare()
+          }, 'image/jpeg')
+          canvas.toBlob(
+            function (newBlob) {
+              results.lowerQualityBlob = newBlob
+              compare()
+            },
+            'image/jpeg',
+            0.1
+          )
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Converts a canvas element to a JPG blob with higher quality', function (done) {
+      var results = {}
+      /**
+       * Compares blob sizes when both have been converted.
+       */
+      function compare() {
+        if (results.defaultQualityBlob && results.lowerQualityBlob) {
+          expect(results.lowerQualityBlob.size).to.be.above(
+            results.defaultQualityBlob.size
+          )
+          done()
+        }
+      }
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            results.defaultQualityBlob = newBlob
+            compare()
+          }, 'image/jpeg')
+          canvas.toBlob(
+            function (newBlob) {
+              results.lowerQualityBlob = newBlob
+              compare()
+            },
+            'image/jpeg',
+            1
+          )
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Keeps the aspect ratio of the canvas image', function (done) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            window.loadImage(newBlob, function (img) {
+              expect(img.width).to.equal(canvas.width)
+              expect(img.height).to.equal(canvas.height)
+              done()
+            })
+          })
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Keeps the image data of the canvas image', function (done) {
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvas.toBlob(function (newBlob) {
+            window.loadImage(
+              newBlob,
+              function (newCanvas) {
+                var canvasData = canvas
+                  .getContext('2d')
+                  .getImageData(0, 0, canvas.width, canvas.height)
+                var newCanvasData = newCanvas
+                  .getContext('2d')
+                  .getImageData(0, 0, newCanvas.width, newCanvas.height)
+                expect(canvasData.width).to.equal(newCanvasData.width)
+                expect(canvasData.height).to.equal(newCanvasData.height)
+                done()
+              },
+              { canvas: true }
+            )
+          })
+        },
+        { canvas: true }
+      )
+    })
+  })
+
+  describe('dataURLtoBlob', function () {
     it('Converts a canvas element to a blob and passes it to the callback function', function (done) {
       window.loadImage(
         blob,
@@ -80,6 +229,82 @@
       )
     })
 
+    it('Converts a canvas element to a JPG blob with lower quality', function (done) {
+      var results = {}
+      /**
+       * Compares blob sizes when both have been converted.
+       */
+      function compare() {
+        if (results.defaultQualityBlob && results.lowerQualityBlob) {
+          expect(results.lowerQualityBlob.size).to.be.below(
+            results.defaultQualityBlob.size
+          )
+          done()
+        }
+      }
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(
+            canvas,
+            function (newBlob) {
+              results.defaultQualityBlob = newBlob
+              compare()
+            },
+            'image/jpeg'
+          )
+          canvasToBlob(
+            canvas,
+            function (newBlob) {
+              results.lowerQualityBlob = newBlob
+              compare()
+            },
+            'image/jpeg',
+            0.1
+          )
+        },
+        { canvas: true }
+      )
+    })
+
+    it('Converts a canvas element to a JPG blob with higher quality', function (done) {
+      var results = {}
+      /**
+       * Compares blob sizes when both have been converted.
+       */
+      function compare() {
+        if (results.defaultQualityBlob && results.lowerQualityBlob) {
+          expect(results.lowerQualityBlob.size).to.be.above(
+            results.defaultQualityBlob.size
+          )
+          done()
+        }
+      }
+      window.loadImage(
+        blob,
+        function (canvas) {
+          canvasToBlob(
+            canvas,
+            function (newBlob) {
+              results.defaultQualityBlob = newBlob
+              compare()
+            },
+            'image/jpeg'
+          )
+          canvasToBlob(
+            canvas,
+            function (newBlob) {
+              results.lowerQualityBlob = newBlob
+              compare()
+            },
+            'image/jpeg',
+            1
+          )
+        },
+        { canvas: true }
+      )
+    })
+
     it('Keeps the aspect ratio of the canvas image', function (done) {
       window.loadImage(
         blob,

From 089a6772c8f065fd9b2091404587e2731702b2ea Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 19 Apr 2020 02:57:16 +0900
Subject: [PATCH 60/85] Use canvas.msToBlob if applicable.

Resolves #33.
---
 js/canvas-to-blob.js | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/js/canvas-to-blob.js b/js/canvas-to-blob.js
index b1aa9ef..8cd717b 100644
--- a/js/canvas-to-blob.js
+++ b/js/canvas-to-blob.js
@@ -106,11 +106,28 @@
         })
       }
     } else if (CanvasPrototype.toDataURL && dataURLtoBlob) {
-      CanvasPrototype.toBlob = function (callback, type, quality) {
-        var self = this
-        setTimeout(function () {
-          callback(dataURLtoBlob(self.toDataURL(type, quality)))
-        })
+      if (CanvasPrototype.msToBlob) {
+        CanvasPrototype.toBlob = function (callback, type, quality) {
+          var self = this
+          setTimeout(function () {
+            if (
+              ((type && type !== 'image/png') || quality) &&
+              CanvasPrototype.toDataURL &&
+              dataURLtoBlob
+            ) {
+              callback(dataURLtoBlob(self.toDataURL(type, quality)))
+            } else {
+              callback(self.msToBlob(type))
+            }
+          })
+        }
+      } else {
+        CanvasPrototype.toBlob = function (callback, type, quality) {
+          var self = this
+          setTimeout(function () {
+            callback(dataURLtoBlob(self.toDataURL(type, quality)))
+          })
+        }
       }
     }
   }

From 7110667d8bbe3c92d86a3d96c4ccdddec8837e1a Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 19 Apr 2020 02:59:00 +0900
Subject: [PATCH 61/85] 3.20.0

---
 js/canvas-to-blob.min.js     | 2 +-
 js/canvas-to-blob.min.js.map | 2 +-
 package-lock.json            | 2 +-
 package.json                 | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/js/canvas-to-blob.min.js b/js/canvas-to-blob.min.js
index 171a417..33536de 100644
--- a/js/canvas-to-blob.min.js
+++ b/js/canvas-to-blob.min.js
@@ -1,2 +1,2 @@
-!function(t){"use strict";var r=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,f=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),b=f&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),d=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,B=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,a=(f||d)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,r,a,i,l,u,c;if(!(e=t.match(B)))throw new Error("invalid data URI");for(o=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),n=!!e[4],r=t.slice(e[0].length),a=(n?atob:decodeURIComponent)(r),i=new ArrayBuffer(a.length),l=new Uint8Array(i),u=0;u<a.length;u+=1)l[u]=a.charCodeAt(u);return f?new Blob([b?l:i],{type:o}):((c=new d).append(i),c.getBlob(o))};t.HTMLCanvasElement&&!r.toBlob&&(r.mozGetAsFile?r.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&r.toDataURL&&a?t(a(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:r.toDataURL&&a&&(r.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(a(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return a}):"object"==typeof module&&module.exports?module.exports=a:t.dataURLtoBlob=a}(window);
+!function(t){"use strict";var a=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,b=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),f=b&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),B=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,s=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,r=(b||B)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,a,r,i,l,u,c;if(!(e=t.match(s)))throw new Error("invalid data URI");for(o=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),n=!!e[4],a=t.slice(e[0].length),r=(n?atob:decodeURIComponent)(a),i=new ArrayBuffer(r.length),l=new Uint8Array(i),u=0;u<r.length;u+=1)l[u]=r.charCodeAt(u);return b?new Blob([f?l:i],{type:o}):((c=new B).append(i),c.getBlob(o))};t.HTMLCanvasElement&&!a.toBlob&&(a.mozGetAsFile?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:a.toDataURL&&r&&(a.msToBlob?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){(e&&"image/png"!==e||o)&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.msToBlob(e))})}:a.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(r(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return r}):"object"==typeof module&&module.exports?module.exports=r:t.dataURLtoBlob=r}(window);
 //# sourceMappingURL=canvas-to-blob.min.js.map
\ No newline at end of file
diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 8b42a83..122791d 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,GACV,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,GAFEF,EAEWL,KAGAgB,oBAHKV,GAMpBE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,KAAK,CAACG,EAA4BkB,EAAWD,GAAc,CACpEU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IACtCf,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAK9B,mBAAXK,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO9B,IAEkB,iBAAXgC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUjC,EAEjBhB,EAAOgB,cAAgBA,EA3G1B,CA6GEhB"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","msToBlob","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,GACV,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,GAFEF,EAEWL,KAGAgB,oBAHKV,GAMpBE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,KAAK,CAACG,EAA4BkB,EAAWD,GAAc,CACpEU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IAClCf,EAAgB6C,SAClB7C,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,YAELT,GAAiB,cAATA,GAAyBM,IACnCxC,EAAgB4C,WAChB7B,EAEAwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKI,SAASX,OAK7BlC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAMhC,mBAAXM,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO/B,IAEkB,iBAAXiC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUlC,EAEjBhB,EAAOgB,cAAgBA,EA5H1B,CA8HEhB"}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 979ac5f..8bd7013 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.19.0",
+  "version": "3.20.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index cfceecf..0b47e29 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.19.0",
+  "version": "3.20.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 460c32da1a62b96e9e796a287db52062293f82d2 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 29 Apr 2020 14:59:00 +0900
Subject: [PATCH 62/85] GitHub workflow: Upgrade to actions/checkout@v2.

---
 .github/workflows/test.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c466ca3..80ef925 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,7 +6,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Setup Node.js
         uses: actions/setup-node@v1
         with:
@@ -23,7 +23,7 @@ jobs:
   unit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: mocha
         run: docker-compose run --rm mocha
       - name: docker-compose logs

From f99738373fbd70f5f9f7809f0c3ebb47ef24e18e Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 29 Apr 2020 14:59:42 +0900
Subject: [PATCH 63/85] Update vendored load-image dev dependency.

---
 test/vendor/load-image-scale.js | 139 +++++++++++++++++++-------------
 test/vendor/load-image.js       |   6 +-
 2 files changed, 85 insertions(+), 60 deletions(-)

diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index 57ac273..89f85b1 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -27,6 +27,16 @@
 
   var originalTransform = loadImage.transform
 
+  loadImage.createCanvas = function (width, height, offscreen) {
+    if (offscreen && loadImage.global.OffscreenCanvas) {
+      return new OffscreenCanvas(width, height)
+    }
+    var canvas = document.createElement('canvas')
+    canvas.width = width
+    canvas.height = height
+    return canvas
+  }
+
   loadImage.transform = function (img, options, callback, file, data) {
     originalTransform.call(
       loadImage,
@@ -40,12 +50,12 @@
 
   // Transform image coordinates, allows to override e.g.
   // the canvas orientation based on the orientation option,
-  // gets canvas, options passed as arguments:
+  // gets canvas, options and data passed as arguments:
   loadImage.transformCoordinates = function () {}
 
   // Returns transformed options, allows to override e.g.
   // maxWidth, maxHeight and crop options based on the aspectRatio.
-  // gets img, options passed as arguments:
+  // gets img, options, data passed as arguments:
   loadImage.getTransformedOptions = function (img, options) {
     var aspectRatio = options.aspectRatio
     var newOptions
@@ -75,21 +85,20 @@
   }
 
   // Canvas render method, allows to implement a different rendering algorithm:
-  loadImage.renderImageToCanvas = function (
-    canvas,
+  loadImage.drawImage = function (
     img,
+    canvas,
     sourceX,
     sourceY,
     sourceWidth,
     sourceHeight,
-    destX,
-    destY,
     destWidth,
     destHeight,
     options
   ) {
     var ctx = canvas.getContext('2d')
     if (options.imageSmoothingEnabled === false) {
+      ctx.msImageSmoothingEnabled = false
       ctx.imageSmoothingEnabled = false
     } else if (options.imageSmoothingQuality) {
       ctx.imageSmoothingQuality = options.imageSmoothingQuality
@@ -100,31 +109,30 @@
       sourceY,
       sourceWidth,
       sourceHeight,
-      destX,
-      destY,
+      0,
+      0,
       destWidth,
       destHeight
     )
-    return canvas
+    return ctx
   }
 
   // Determines if the target image should be a canvas element:
-  loadImage.hasCanvasOption = function (options) {
+  loadImage.requiresCanvas = function (options) {
     return options.canvas || options.crop || !!options.aspectRatio
   }
 
   // Scales and/or crops the given image (img or canvas HTML element)
-  // using the given options.
-  // Returns a canvas object if the browser supports canvas
-  // and the hasCanvasOption method returns true or a canvas
-  // object is passed as image, else the scaled image:
+  // using the given options:
   loadImage.scale = function (img, options, data) {
     // eslint-disable-next-line no-param-reassign
     options = options || {}
-    var canvas = document.createElement('canvas')
+    // eslint-disable-next-line no-param-reassign
+    data = data || {}
     var useCanvas =
       img.getContext ||
-      (loadImage.hasCanvasOption(options) && canvas.getContext)
+      (loadImage.requiresCanvas(options) &&
+        !!loadImage.global.HTMLCanvasElement)
     var width = img.naturalWidth || img.width
     var height = img.naturalHeight || img.height
     var destWidth = width
@@ -140,6 +148,7 @@
     var pixelRatio
     var downsamplingRatio
     var tmp
+    var canvas
     /**
      * Scales up image dimensions
      */
@@ -224,12 +233,36 @@
     }
     if (useCanvas) {
       pixelRatio = options.pixelRatio
-      if (pixelRatio > 1) {
-        canvas.style.width = destWidth + 'px'
-        canvas.style.height = destHeight + 'px'
+      if (
+        pixelRatio > 1 &&
+        // Check if image has not yet device pixel ratio applied:
+        parseInt(img.style.width, 10) !== width / pixelRatio
+      ) {
         destWidth *= pixelRatio
         destHeight *= pixelRatio
-        canvas.getContext('2d').scale(pixelRatio, pixelRatio)
+      }
+      // Check if workaround for Chromium orientation crop bug is required:
+      // https://bugs.chromium.org/p/chromium/issues/detail?id=1074354
+      if (
+        loadImage.orientationCropBug &&
+        !img.getContext &&
+        (sourceX || sourceY || sourceWidth !== width || sourceHeight !== height)
+      ) {
+        // Write the complete source image to an intermediate canvas first:
+        tmp = img
+        // eslint-disable-next-line no-param-reassign
+        img = loadImage.createCanvas(width, height, true)
+        loadImage.drawImage(
+          tmp,
+          img,
+          0,
+          0,
+          width,
+          height,
+          width,
+          height,
+          options
+        )
       }
       downsamplingRatio = options.downsamplingRatio
       if (
@@ -239,17 +272,18 @@
         destHeight < sourceHeight
       ) {
         while (sourceWidth * downsamplingRatio > destWidth) {
-          canvas.width = sourceWidth * downsamplingRatio
-          canvas.height = sourceHeight * downsamplingRatio
-          loadImage.renderImageToCanvas(
-            canvas,
+          canvas = loadImage.createCanvas(
+            sourceWidth * downsamplingRatio,
+            sourceHeight * downsamplingRatio,
+            true
+          )
+          loadImage.drawImage(
             img,
+            canvas,
             sourceX,
             sourceY,
             sourceWidth,
             sourceHeight,
-            0,
-            0,
             canvas.width,
             canvas.height,
             options
@@ -259,40 +293,29 @@
           sourceWidth = canvas.width
           sourceHeight = canvas.height
           // eslint-disable-next-line no-param-reassign
-          img = document.createElement('canvas')
-          img.width = sourceWidth
-          img.height = sourceHeight
-          loadImage.renderImageToCanvas(
-            img,
-            canvas,
-            0,
-            0,
-            sourceWidth,
-            sourceHeight,
-            0,
-            0,
-            sourceWidth,
-            sourceHeight,
-            options
-          )
+          img = canvas
         }
       }
-      canvas.width = destWidth
-      canvas.height = destHeight
-      loadImage.transformCoordinates(canvas, options)
-      return loadImage.renderImageToCanvas(
-        canvas,
-        img,
-        sourceX,
-        sourceY,
-        sourceWidth,
-        sourceHeight,
-        0,
-        0,
-        destWidth,
-        destHeight,
-        options
-      )
+      canvas = loadImage.createCanvas(destWidth, destHeight)
+      loadImage.transformCoordinates(canvas, options, data)
+      if (pixelRatio > 1) {
+        canvas.style.width = canvas.width / pixelRatio + 'px'
+        canvas.style.height = canvas.height / pixelRatio + 'px'
+      }
+      loadImage
+        .drawImage(
+          img,
+          canvas,
+          sourceX,
+          sourceY,
+          sourceWidth,
+          sourceHeight,
+          destWidth,
+          destHeight,
+          options
+        )
+        .setTransform(1, 0, 0, 1, 0, 0) // reset to the identity matrix
+      return canvas
     }
     img.width = destWidth
     img.height = destHeight
diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index 50a36cd..335ff70 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -54,7 +54,7 @@
       return loadImage.onload(img, event, file, url, callback, options)
     }
     if (typeof file === 'string') {
-      if (loadImage.hasMetaOption(options)) {
+      if (loadImage.requiresMetaData(options)) {
         loadImage.fetchBlob(file, fetchBlobCallback, options)
       } else {
         fetchBlobCallback()
@@ -102,7 +102,7 @@
 
   // Determines if meta data should be loaded automatically.
   // Requires the load image meta extension to load meta data.
-  loadImage.hasMetaOption = function (options) {
+  loadImage.requiresMetaData = function (options) {
     return options && options.meta
   }
 
@@ -164,6 +164,8 @@
     return false
   }
 
+  loadImage.global = $
+
   if (typeof define === 'function' && define.amd) {
     define(function () {
       return loadImage

From 083d22fff9f5abf1802ed8bb58ae4d271040346d Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 29 Apr 2020 15:01:17 +0900
Subject: [PATCH 64/85] Update dev dependencies.

---
 package-lock.json | 124 ++++++++++++++++++++--------------------------
 package.json      |   2 +-
 2 files changed, 55 insertions(+), 71 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 8bd7013..340e17b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,9 +14,9 @@
       }
     },
     "@babel/helper-validator-identifier": {
-      "version": "7.9.0",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.0.tgz",
-      "integrity": "sha512-6G8bQKjOh+of4PV/ThDm/rRqlU7+IGoJuofpagU5GlEl29Vv0RGqqt86ZGRV8ZuSOY3o+8yXl5y782SMcG7SHw==",
+      "version": "7.9.5",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.5.tgz",
+      "integrity": "sha512-/8arLKUFq882w4tWGj9JYzRpAlZgiWUJ+dtteNTDqrRBz9Iguck9Rn3ykuBDoUwh2TO4tSAJlrxDUOXWklJe4g==",
       "dev": true
     },
     "@babel/highlight": {
@@ -49,9 +49,9 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.12.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
-      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+      "version": "6.12.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.2.tgz",
+      "integrity": "sha512-k+V+hzjm5q/Mr8ef/1Y9goCmlsK4I6Sm74teeyGvFk1XrOsbsKLjEdrvny42CZ+a8sXbk8KWpY/bDwS+FLL2UQ==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^3.1.1",
@@ -156,9 +156,9 @@
       }
     },
     "cli-width": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.0.tgz",
-      "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=",
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.1.tgz",
+      "integrity": "sha512-GRMWDxpOB6Dgk2E5Uo+3eEBvtOOlimMmpbFiKuLFnQzYDavtLFY3K5ona41jgN/WdRZtG7utuVSVTL4HbZHGkw==",
       "dev": true
     },
     "color-convert": {
@@ -303,18 +303,18 @@
       "dev": true
     },
     "eslint-config-prettier": {
-      "version": "6.10.1",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-6.10.1.tgz",
-      "integrity": "sha512-svTy6zh1ecQojvpbJSgH3aei/Rt7C6i090l5f2WQ4aB05lYHeZIR1qL4wZyyILTbtmnbHP5Yn8MrsOJMGa8RkQ==",
+      "version": "6.11.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-6.11.0.tgz",
+      "integrity": "sha512-oB8cpLWSAjOVFEJhhyMZh6NOEOtBVziaqdDQ86+qhDHFbZXoRTM7pNSvFRfW/W/L/LrQ38C99J5CGuRBBzBsdA==",
       "dev": true,
       "requires": {
         "get-stdin": "^6.0.0"
       }
     },
     "eslint-plugin-jsdoc": {
-      "version": "22.1.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-22.1.0.tgz",
-      "integrity": "sha512-54NdbICM7KrxsGUqQsev9aIMqPXyvyBx2218Qcm0TQ16P9CtBI+YY4hayJR6adrxlq4Ej0JLpgfUXWaQVFqmQg==",
+      "version": "24.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-24.0.0.tgz",
+      "integrity": "sha512-AGAc9PYpramsJGVmqtxnXBYlq+AMh+hIZdbJ52OLvyJS3f+PaT/PzuckRFOLnth2uhCDv4IjgsB3r5jUFWqUnw==",
       "dev": true,
       "requires": {
         "comment-parser": "^0.7.2",
@@ -327,9 +327,9 @@
       }
     },
     "eslint-plugin-prettier": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-3.1.2.tgz",
-      "integrity": "sha512-GlolCC9y3XZfv3RQfwGew7NnuFDKsfI4lbvRK+PIIo23SFH+LemGs4cKwzAaRa+Mdb+lQO/STaIayno8T5sJJA==",
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-3.1.3.tgz",
+      "integrity": "sha512-+HG5jmu/dN3ZV3T6eCD7a4BlAySdN7mLIbJYo0z1cFQuI+r2DiTJEFeF68ots93PsnrMxbzIZ2S/ieX+mkrBeQ==",
       "dev": true,
       "requires": {
         "prettier-linter-helpers": "^1.0.0"
@@ -378,18 +378,18 @@
       "dev": true
     },
     "esquery": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.2.0.tgz",
-      "integrity": "sha512-weltsSqdeWIX9G2qQZz7KlTRJdkkOCTPgLYJUz1Hacf48R4YOwGPHO3+ORfWedqJKbq5WQmsgK90n+pFLIKt/Q==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.3.1.tgz",
+      "integrity": "sha512-olpvt9QG0vniUBZspVRN6lwB7hOZoTRtT+jzR+tS4ffYx2mzbw+z0XCOk44aaLYKApNX5nMm+E+P6o25ip/DHQ==",
       "dev": true,
       "requires": {
-        "estraverse": "^5.0.0"
+        "estraverse": "^5.1.0"
       },
       "dependencies": {
         "estraverse": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.0.0.tgz",
-          "integrity": "sha512-j3acdrMzqrxmJTNj5dbr1YbjacrYgAxVMeF0gK16E3j494mOe7xygM/ZLIguEQ0ETwAg2hlJCtHRGav+y0Ny5A==",
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.1.0.tgz",
+          "integrity": "sha512-FyohXK+R0vE+y1nHLoBM7ZTyqRpqAlhdZHCWIWEviFLiGB8b04H6bQs8G+XTthacvT8VuwvteiP7RJSxMs8UEw==",
           "dev": true
         }
       }
@@ -480,9 +480,9 @@
       }
     },
     "flatted": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/flatted/-/flatted-2.0.1.tgz",
-      "integrity": "sha512-a1hQMktqW9Nmqr5aktAux3JMNqaucxGcjtjWnZLHX7yyPCmlSV3M54nGYbqT8K+0GhF3NBgmJCc3ma+WOgX8Jg==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/flatted/-/flatted-2.0.2.tgz",
+      "integrity": "sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==",
       "dev": true
     },
     "fs.realpath": {
@@ -691,12 +691,6 @@
         "is-extglob": "^2.1.1"
       }
     },
-    "is-promise": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/is-promise/-/is-promise-2.1.0.tgz",
-      "integrity": "sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=",
-      "dev": true
-    },
     "isexe": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@@ -775,9 +769,9 @@
       "dev": true
     },
     "mkdirp": {
-      "version": "0.5.4",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.4.tgz",
-      "integrity": "sha512-iG9AK/dJLtJ0XNgTuDbSyNS3zECqDlAhnQW4CsNxBG3LQJBbHmRX1egw39DmtOdCAqY+dKXV+sgPgilNWUKMVw==",
+      "version": "0.5.5",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+      "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
       "dev": true,
       "requires": {
         "minimist": "^1.2.5"
@@ -873,9 +867,9 @@
       "dev": true
     },
     "prettier": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.0.2.tgz",
-      "integrity": "sha512-5xJQIPT8BraI7ZnaDwSbu5zLrB6vvi8hVV58yHQ+QK64qrY40dULy0HSRlQ2/2IdzeBpjhDkqdcFBnFeDEMVdg==",
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.0.5.tgz",
+      "integrity": "sha512-7PtVymN48hGcO4fGjybyBSIWDsLU4H4XlvOHfq91pz9kkGlonzwTfYkaIEwiRg/dAJF9YlbsduBAgtYLi+8cFg==",
       "dev": true
     },
     "prettier-linter-helpers": {
@@ -937,18 +931,15 @@
       }
     },
     "run-async": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/run-async/-/run-async-2.4.0.tgz",
-      "integrity": "sha512-xJTbh/d7Lm7SBhc1tNvTpeCHaEzoyxPrqNlvSdMfBTYwaY++UJFyXUOxAtsRUXjlqOfj8luNaR9vjCh4KeV+pg==",
-      "dev": true,
-      "requires": {
-        "is-promise": "^2.1.0"
-      }
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/run-async/-/run-async-2.4.1.tgz",
+      "integrity": "sha512-tvVnVv01b8c1RrA6Ep7JkStj85Guv/YrMcwqYQnwjsAS2cTmmPGBBjAjpCW7RrSodNSoE2/qg9O4bceNvUuDgQ==",
+      "dev": true
     },
     "rxjs": {
-      "version": "6.5.4",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.4.tgz",
-      "integrity": "sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==",
+      "version": "6.5.5",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.5.tgz",
+      "integrity": "sha512-WfQI+1gohdf0Dai/Bbmk5L5ItH5tYqm3ki2c5GdWhKjalzjg93N3avFjVStyZZz+A2Em+ZxKH5bNghw9UeylGQ==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.0"
@@ -982,9 +973,9 @@
       "dev": true
     },
     "signal-exit": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
-      "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.3.tgz",
+      "integrity": "sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==",
       "dev": true
     },
     "slice-ansi": {
@@ -1006,16 +997,10 @@
         }
       }
     },
-    "source-map": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-      "dev": true
-    },
     "spdx-exceptions": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
-      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.3.0.tgz",
+      "integrity": "sha512-/tTrYOC7PPI1nUAgx34hUpqXuyJG+DTHJTnIULG4rDygi4xu/tfgmq1e1cIRwRzwZgo4NLySi+ricLkZkw4i5A==",
       "dev": true
     },
     "spdx-expression-parse": {
@@ -1080,9 +1065,9 @@
       }
     },
     "strip-json-comments": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.0.1.tgz",
-      "integrity": "sha512-VTyMAUfdm047mwKl+u79WIdrZxtFtn+nBxHeb844XBQ9uMNTuTHdx2hc5RiAJYqwTj3wc/xe5HLSdJSkJ+WfZw==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.0.tgz",
+      "integrity": "sha512-e6/d0eBu7gHtdCqFt0xJr642LdToM5/cN4Qb9DbHjVx1CP5RyeM+zH7pbecEmDv/lBqb0QH+6Uqq75rxFPkM0w==",
       "dev": true
     },
     "supports-color": {
@@ -1174,13 +1159,12 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.8.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.8.0.tgz",
-      "integrity": "sha512-ugNSTT8ierCsDHso2jkBHXYrU8Y5/fY2ZUprfrJUiD7YpuFvV4jODLFmb3h4btQjqr5Nh4TX4XtgDfCU1WdioQ==",
+      "version": "3.9.1",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.1.tgz",
+      "integrity": "sha512-JUPoL1jHsc9fOjVFHdQIhqEEJsQvfKDjlubcCilu8U26uZ73qOg8VsN8O1jbuei44ZPlwL7kmbAdM4tzaUvqnA==",
       "dev": true,
       "requires": {
-        "commander": "~2.20.3",
-        "source-map": "~0.6.1"
+        "commander": "~2.20.3"
       }
     },
     "uri-js": {
diff --git a/package.json b/package.json
index 0b47e29..4748e3f 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "eslint": "6",
     "eslint-config-blueimp": "1",
     "eslint-config-prettier": "6",
-    "eslint-plugin-jsdoc": "22",
+    "eslint-plugin-jsdoc": "24",
     "eslint-plugin-prettier": "3",
     "prettier": "2",
     "uglify-js": "3"

From 2f6695c345815340392ddd00ed5f875cddbfa5a8 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Wed, 29 Apr 2020 15:01:54 +0900
Subject: [PATCH 65/85] 3.21.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 340e17b..f14441b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.20.0",
+  "version": "3.21.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 4748e3f..fcbb0c2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.20.0",
+  "version": "3.21.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From ef0f52ff06f2344ae92aa78091cbecba17d20e80 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 30 Apr 2020 21:39:41 +0900
Subject: [PATCH 66/85] Update vendored load-image dev dependency.

---
 test/vendor/load-image.js | 144 ++++++++++++++++++++++----------------
 1 file changed, 85 insertions(+), 59 deletions(-)

diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index 335ff70..8f31a96 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -9,77 +9,105 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define, webkitURL, module */
+/* global define, module, Promise, webkitURL */
 
 ;(function ($) {
   'use strict'
 
   /**
    * Loads an image for a given File object.
-   * Invokes the callback with an img or optional canvas element
-   * (if supported by the browser) as parameter:.
    *
    * @param {File|Blob|string} file File or Blob object or image URL
-   * @param {Function} [callback] Image load event callback
+   * @param {Function|object} [callback] Image load event callback or options
    * @param {object} [options] Options object
-   * @returns {HTMLImageElement|HTMLCanvasElement|FileReader} image object
+   * @returns {HTMLImageElement|HTMLCanvasElement|FileReader|Promise} Object
    */
   function loadImage(file, callback, options) {
-    var img = document.createElement('img')
-    var url
     /**
-     * Callback for the fetchBlob call.
+     * Promise executor
      *
-     * @param {Blob} blob Blob object
-     * @param {Error} err Error object
+     * @param {Function} resolve Resolution function
+     * @param {Function} reject Rejection function
+     * @returns {HTMLImageElement|HTMLCanvasElement|FileReader} Object
      */
-    function fetchBlobCallback(blob, err) {
-      if (err) console.log(err) // eslint-disable-line no-console
-      if (blob && loadImage.isInstanceOf('Blob', blob)) {
-        // eslint-disable-next-line no-param-reassign
-        file = blob
-        url = loadImage.createObjectURL(file)
-      } else {
-        url = file
-        if (options && options.crossOrigin) {
-          img.crossOrigin = options.crossOrigin
+    function executor(resolve, reject) {
+      var img = document.createElement('img')
+      var url
+      /**
+       * Callback for the fetchBlob call.
+       *
+       * @param {HTMLImageElement|HTMLCanvasElement} img Error object
+       * @param {object} data Data object
+       * @returns {undefined} Undefined
+       */
+      function resolveWrapper(img, data) {
+        if (resolve === reject) {
+          // Not using Promises
+          if (resolve) resolve(img, data)
+          return
         }
+        data = data || {} // eslint-disable-line no-param-reassign
+        data.image = img
+        resolve(data)
       }
-      img.src = url
-    }
-    img.onerror = function (event) {
-      return loadImage.onerror(img, event, file, url, callback, options)
-    }
-    img.onload = function (event) {
-      return loadImage.onload(img, event, file, url, callback, options)
-    }
-    if (typeof file === 'string') {
-      if (loadImage.requiresMetaData(options)) {
-        loadImage.fetchBlob(file, fetchBlobCallback, options)
-      } else {
-        fetchBlobCallback()
-      }
-      return img
-    } else if (
-      loadImage.isInstanceOf('Blob', file) ||
-      // Files are also Blob instances, but some browsers
-      // (Firefox 3.6) support the File API but not Blobs:
-      loadImage.isInstanceOf('File', file)
-    ) {
-      url = loadImage.createObjectURL(file)
-      if (url) {
+      /**
+       * Callback for the fetchBlob call.
+       *
+       * @param {Blob} blob Blob object
+       * @param {Error} err Error object
+       */
+      function fetchBlobCallback(blob, err) {
+        if (err && $.console) console.log(err) // eslint-disable-line no-console
+        if (blob && loadImage.isInstanceOf('Blob', blob)) {
+          file = blob // eslint-disable-line no-param-reassign
+          url = loadImage.createObjectURL(file)
+        } else {
+          url = file
+          if (options && options.crossOrigin) {
+            img.crossOrigin = options.crossOrigin
+          }
+        }
         img.src = url
-        return img
       }
-      return loadImage.readFile(file, function (e) {
-        var target = e.target
-        if (target && target.result) {
-          img.src = target.result
-        } else if (callback) {
-          callback(e)
+      img.onerror = function (event) {
+        return loadImage.onerror(img, event, file, url, reject, options)
+      }
+      img.onload = function (event) {
+        return loadImage.onload(img, event, file, url, resolveWrapper, options)
+      }
+      if (typeof file === 'string') {
+        if (loadImage.requiresMetaData(options)) {
+          loadImage.fetchBlob(file, fetchBlobCallback, options)
+        } else {
+          fetchBlobCallback()
         }
-      })
+        return img
+      } else if (
+        loadImage.isInstanceOf('Blob', file) ||
+        // Files are also Blob instances, but some browsers
+        // (Firefox 3.6) support the File API but not Blobs:
+        loadImage.isInstanceOf('File', file)
+      ) {
+        url = loadImage.createObjectURL(file)
+        if (url) {
+          img.src = url
+          return img
+        }
+        return loadImage.readFile(file, function (e) {
+          var target = e.target
+          if (target && target.result) {
+            img.src = target.result
+          } else if (reject) {
+            reject(e)
+          }
+        })
+      }
     }
+    if ($.Promise && typeof callback !== 'function') {
+      options = callback // eslint-disable-line no-param-reassign
+      return new Promise(executor)
+    }
+    return executor(callback, callback)
   }
   // The check for URL.revokeObjectURL fixes an issue with Opera 12,
   // which provides URL.createObjectURL but doesn't properly implement it:
@@ -100,8 +128,8 @@
     }
   }
 
-  // Determines if meta data should be loaded automatically.
-  // Requires the load image meta extension to load meta data.
+  // Determines if metadata should be loaded automatically.
+  // Requires the load image meta extension to load metadata.
   loadImage.requiresMetaData = function (options) {
     return options && options.meta
   }
@@ -131,12 +159,10 @@
 
   loadImage.onload = function (img, event, file, url, callback, options) {
     revokeHelper(url, options)
-    if (callback) {
-      loadImage.transform(img, options, callback, file, {
-        originalWidth: img.naturalWidth || img.width,
-        originalHeight: img.naturalHeight || img.height
-      })
-    }
+    loadImage.transform(img, options, callback, file, {
+      originalWidth: img.naturalWidth || img.width,
+      originalHeight: img.naturalHeight || img.height
+    })
   }
 
   loadImage.createObjectURL = function (file) {

From 2b129a9eb677d77405ceb6156085e0812b7cb7a1 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 30 Apr 2020 21:40:27 +0900
Subject: [PATCH 67/85] 3.22.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f14441b..c305a2e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.21.0",
+  "version": "3.22.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index fcbb0c2..df6c86b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.21.0",
+  "version": "3.22.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 3efe8219dc58d43501213cdcb87f2dfb9663a1e1 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 4 May 2020 03:59:55 +0900
Subject: [PATCH 68/85] Update vendored load-image dev dependency.

---
 test/vendor/load-image-scale.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index 89f85b1..d958963 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -236,7 +236,7 @@
       if (
         pixelRatio > 1 &&
         // Check if image has not yet device pixel ratio applied:
-        parseInt(img.style.width, 10) !== width / pixelRatio
+        parseFloat(img.style.width, 10) !== width / pixelRatio
       ) {
         destWidth *= pixelRatio
         destHeight *= pixelRatio

From d71a4916a563637b25790466ed1eeb6c325359ff Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 4 May 2020 04:00:21 +0900
Subject: [PATCH 69/85] 3.23.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index c305a2e..72dbce7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.22.0",
+  "version": "3.23.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index df6c86b..a974f91 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.22.0",
+  "version": "3.23.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 065b22ecb998ad763436442cfe55cb36a4b25400 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 4 May 2020 13:52:23 +0900
Subject: [PATCH 70/85] Update vendored load-image dev dependency.

---
 test/vendor/load-image-scale.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index d958963..fe852b4 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -235,8 +235,12 @@
       pixelRatio = options.pixelRatio
       if (
         pixelRatio > 1 &&
-        // Check if image has not yet device pixel ratio applied:
-        parseFloat(img.style.width, 10) !== width / pixelRatio
+        // Check if the image has not yet had the device pixel ratio applied:
+        !(
+          img.style.width &&
+          Math.floor(parseFloat(img.style.width, 10)) ===
+            Math.floor(width / pixelRatio)
+        )
       ) {
         destWidth *= pixelRatio
         destHeight *= pixelRatio

From 049e97f3423995ce5201e6d75513dbb6c42776d1 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 4 May 2020 13:52:55 +0900
Subject: [PATCH 71/85] 3.24.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 72dbce7..9f523a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.23.0",
+  "version": "3.24.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a974f91..4e3389c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.23.0",
+  "version": "3.24.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 6cf1b1a8ca8c14b0331c407ba2aaea2da9d3161b Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 8 May 2020 01:52:08 +0900
Subject: [PATCH 72/85] Update vendored load-image dev dependency.

---
 test/vendor/load-image.js | 199 +++++++++++++++++++++-----------------
 1 file changed, 112 insertions(+), 87 deletions(-)

diff --git a/test/vendor/load-image.js b/test/vendor/load-image.js
index 8f31a96..27387fb 100644
--- a/test/vendor/load-image.js
+++ b/test/vendor/load-image.js
@@ -9,18 +9,95 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define, module, Promise, webkitURL */
+/* global define, module, Promise */
 
 ;(function ($) {
   'use strict'
 
+  var urlAPI = $.URL || $.webkitURL
+
+  /**
+   * Creates an object URL for a given File object.
+   *
+   * @param {Blob} blob Blob object
+   * @returns {string|boolean} Returns object URL if API exists, else false.
+   */
+  function createObjectURL(blob) {
+    return urlAPI ? urlAPI.createObjectURL(blob) : false
+  }
+
+  /**
+   * Revokes a given object URL.
+   *
+   * @param {string} url Blob object URL
+   * @returns {undefined|boolean} Returns undefined if API exists, else false.
+   */
+  function revokeObjectURL(url) {
+    return urlAPI ? urlAPI.revokeObjectURL(url) : false
+  }
+
+  /**
+   * Helper function to revoke an object URL
+   *
+   * @param {string} url Blob Object URL
+   * @param {object} [options] Options object
+   */
+  function revokeHelper(url, options) {
+    if (url && url.slice(0, 5) === 'blob:' && !(options && options.noRevoke)) {
+      revokeObjectURL(url)
+    }
+  }
+
+  /**
+   * Loads a given File object via FileReader interface.
+   *
+   * @param {Blob} file Blob object
+   * @param {Function} onload Load event callback
+   * @param {Function} [onerror] Error/Abort event callback
+   * @param {string} [method=readAsDataURL] FileReader method
+   * @returns {FileReader|boolean} Returns FileReader if API exists, else false.
+   */
+  function readFile(file, onload, onerror, method) {
+    if (!$.FileReader) return false
+    var reader = new FileReader()
+    reader.onload = function () {
+      onload.call(reader, this.result)
+    }
+    if (onerror) {
+      reader.onabort = reader.onerror = function () {
+        onerror.call(reader, this.error)
+      }
+    }
+    var readerMethod = reader[method || 'readAsDataURL']
+    if (readerMethod) {
+      readerMethod.call(reader, file)
+      return reader
+    }
+  }
+
+  /**
+   * Cross-frame instanceof check.
+   *
+   * @param {string} type Instance type
+   * @param {object} obj Object instance
+   * @returns {boolean} Returns true if the object is of the given instance.
+   */
+  function isInstanceOf(type, obj) {
+    // Cross-frame instanceof check
+    return Object.prototype.toString.call(obj) === '[object ' + type + ']'
+  }
+
+  /**
+   * @typedef { HTMLImageElement|HTMLCanvasElement } Result
+   */
+
   /**
    * Loads an image for a given File object.
    *
-   * @param {File|Blob|string} file File or Blob object or image URL
+   * @param {Blob|string} file Blob object or image URL
    * @param {Function|object} [callback] Image load event callback or options
    * @param {object} [options] Options object
-   * @returns {HTMLImageElement|HTMLCanvasElement|FileReader|Promise} Object
+   * @returns {HTMLImageElement|FileReader|Promise<Result>} Object
    */
   function loadImage(file, callback, options) {
     /**
@@ -28,7 +105,7 @@
      *
      * @param {Function} resolve Resolution function
      * @param {Function} reject Rejection function
-     * @returns {HTMLImageElement|HTMLCanvasElement|FileReader} Object
+     * @returns {HTMLImageElement|FileReader} Object
      */
     function executor(resolve, reject) {
       var img = document.createElement('img')
@@ -45,6 +122,9 @@
           // Not using Promises
           if (resolve) resolve(img, data)
           return
+        } else if (img instanceof Error) {
+          reject(img)
+          return
         }
         data = data || {} // eslint-disable-line no-param-reassign
         data.image = img
@@ -58,9 +138,9 @@
        */
       function fetchBlobCallback(blob, err) {
         if (err && $.console) console.log(err) // eslint-disable-line no-console
-        if (blob && loadImage.isInstanceOf('Blob', blob)) {
+        if (blob && isInstanceOf('Blob', blob)) {
           file = blob // eslint-disable-line no-param-reassign
-          url = loadImage.createObjectURL(file)
+          url = createObjectURL(file)
         } else {
           url = file
           if (options && options.crossOrigin) {
@@ -70,10 +150,20 @@
         img.src = url
       }
       img.onerror = function (event) {
-        return loadImage.onerror(img, event, file, url, reject, options)
+        revokeHelper(url, options)
+        if (reject) reject.call(img, event)
       }
-      img.onload = function (event) {
-        return loadImage.onload(img, event, file, url, resolveWrapper, options)
+      img.onload = function () {
+        revokeHelper(url, options)
+        var data = {
+          originalWidth: img.naturalWidth || img.width,
+          originalHeight: img.naturalHeight || img.height
+        }
+        try {
+          loadImage.transform(img, options, resolveWrapper, file, data)
+        } catch (error) {
+          if (reject) reject(error)
+        }
       }
       if (typeof file === 'string') {
         if (loadImage.requiresMetaData(options)) {
@@ -82,25 +172,19 @@
           fetchBlobCallback()
         }
         return img
-      } else if (
-        loadImage.isInstanceOf('Blob', file) ||
-        // Files are also Blob instances, but some browsers
-        // (Firefox 3.6) support the File API but not Blobs:
-        loadImage.isInstanceOf('File', file)
-      ) {
-        url = loadImage.createObjectURL(file)
+      } else if (isInstanceOf('Blob', file) || isInstanceOf('File', file)) {
+        url = createObjectURL(file)
         if (url) {
           img.src = url
           return img
         }
-        return loadImage.readFile(file, function (e) {
-          var target = e.target
-          if (target && target.result) {
-            img.src = target.result
-          } else if (reject) {
-            reject(e)
-          }
-        })
+        return readFile(
+          file,
+          function (url) {
+            img.src = url
+          },
+          reject
+        )
       }
     }
     if ($.Promise && typeof callback !== 'function') {
@@ -109,24 +193,6 @@
     }
     return executor(callback, callback)
   }
-  // The check for URL.revokeObjectURL fixes an issue with Opera 12,
-  // which provides URL.createObjectURL but doesn't properly implement it:
-  var urlAPI =
-    ($.createObjectURL && $) ||
-    ($.URL && URL.revokeObjectURL && URL) ||
-    ($.webkitURL && webkitURL)
-
-  /**
-   * Helper function to revoke an object URL
-   *
-   * @param {string} url Blob Object URL
-   * @param {object} [options] Options object
-   */
-  function revokeHelper(url, options) {
-    if (url && url.slice(0, 5) === 'blob:' && !(options && options.noRevoke)) {
-      loadImage.revokeObjectURL(url)
-    }
-  }
 
   // Determines if metadata should be loaded automatically.
   // Requires the load image meta extension to load metadata.
@@ -141,56 +207,15 @@
     callback()
   }
 
-  loadImage.isInstanceOf = function (type, obj) {
-    // Cross-frame instanceof check
-    return Object.prototype.toString.call(obj) === '[object ' + type + ']'
-  }
-
   loadImage.transform = function (img, options, callback, file, data) {
     callback(img, data)
   }
 
-  loadImage.onerror = function (img, event, file, url, callback, options) {
-    revokeHelper(url, options)
-    if (callback) {
-      callback.call(img, event)
-    }
-  }
-
-  loadImage.onload = function (img, event, file, url, callback, options) {
-    revokeHelper(url, options)
-    loadImage.transform(img, options, callback, file, {
-      originalWidth: img.naturalWidth || img.width,
-      originalHeight: img.naturalHeight || img.height
-    })
-  }
-
-  loadImage.createObjectURL = function (file) {
-    return urlAPI ? urlAPI.createObjectURL(file) : false
-  }
-
-  loadImage.revokeObjectURL = function (url) {
-    return urlAPI ? urlAPI.revokeObjectURL(url) : false
-  }
-
-  // Loads a given File object via FileReader interface,
-  // invokes the callback with the event object (load or error).
-  // The result can be read via event.target.result:
-  loadImage.readFile = function (file, callback, method) {
-    if ($.FileReader) {
-      var fileReader = new FileReader()
-      fileReader.onload = fileReader.onerror = callback
-      // eslint-disable-next-line no-param-reassign
-      method = method || 'readAsDataURL'
-      if (fileReader[method]) {
-        fileReader[method](file)
-        return fileReader
-      }
-    }
-    return false
-  }
-
   loadImage.global = $
+  loadImage.readFile = readFile
+  loadImage.isInstanceOf = isInstanceOf
+  loadImage.createObjectURL = createObjectURL
+  loadImage.revokeObjectURL = revokeObjectURL
 
   if (typeof define === 'function' && define.amd) {
     define(function () {

From 4a890fa6b8ec74fed7bba183d5259e0aec0dc9af Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Fri, 8 May 2020 01:52:50 +0900
Subject: [PATCH 73/85] 3.25.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9f523a0..714fee4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.24.0",
+  "version": "3.25.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 4e3389c..0ae5791 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.24.0",
+  "version": "3.25.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From cd4b03bc23f38ada0afe33cf95be96d777194153 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 11 May 2020 02:49:03 +0900
Subject: [PATCH 74/85] Docs: Update browser support, setup and API info.

---
 README.md | 145 +++++++++++++++++++++++++++++-------------------------
 1 file changed, 79 insertions(+), 66 deletions(-)

diff --git a/README.md b/README.md
index 96efb0d..92e16c6 100644
--- a/README.md
+++ b/README.md
@@ -3,46 +3,66 @@
 ## Contents
 
 - [Description](#description)
+- [Setup](#setup)
 - [Usage](#usage)
 - [Requirements](#requirements)
-- [API](#api)
 - [Browsers](#browsers)
-  - [Desktop browsers](#desktop-browsers)
-  - [Mobile browsers](#mobile-browsers)
+- [API](#api)
 - [Test](#test)
 - [License](#license)
 
 ## Description
 
-Canvas to Blob is a polyfill for the standard JavaScript
-[canvas.toBlob](http://www.w3.org/TR/html5/scripting-1.html#dom-canvas-toblob)
+Canvas to Blob is a
+[polyfill](https://developer.mozilla.org/en-US/docs/Glossary/Polyfill) for
+Browsers that don't support the standard JavaScript
+[HTMLCanvasElement.toBlob](https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob)
 method.
 
 It can be used to create
 [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob) objects from an
-HTML [canvas](https://developer.mozilla.org/en-US/docs/HTML/Canvas) element.
+HTML [canvas](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/canvas)
+element.
 
-## Usage
+## Setup
+
+Install via [NPM](https://www.npmjs.com/package/blueimp-canvas-to-blob):
 
-Include the (minified) JavaScript Canvas to Blob script in your HTML markup:
+```sh
+npm install blueimp-canvas-to-blob
+```
+
+This will install the JavaScript files inside
+`./node_modules/blueimp-canvas-to-blob/js/` relative to your current directory,
+from where you can copy them into a folder that is served by your web server.
+
+Next include the minified JavaScript Canvas to Blob script in your HTML markup:
 
 ```html
 <script src="http://github.com/js/canvas-to-blob.min.js"></script>
 ```
 
-Then use the _canvas.toBlob()_ method in the same way as the native
+Or alternatively, include the non-minified version:
+
+```html
+<script src="http://github.com/js/canvas-to-blob.js"></script>
+```
+
+## Usage
+
+You can use the `canvas.toBlob()` method in the same way as the native
 implementation:
 
 ```js
 var canvas = document.createElement('canvas')
-/* ... your canvas manipulations ... */
+// Edit the canvas ...
 if (canvas.toBlob) {
-  canvas.toBlob(function(blob) {
+  canvas.toBlob(function (blob) {
     // Do something with the blob object,
-    // e.g. creating a multipart form for file uploads:
+    // e.g. create multipart form data for file uploads:
     var formData = new FormData()
-    formData.append('file', blob, fileName)
-    /* ... */
+    formData.append('file', blob, 'image.jpg')
+    // ...
   }, 'image/jpeg')
 }
 ```
@@ -51,70 +71,63 @@ if (canvas.toBlob) {
 
 The JavaScript Canvas to Blob function has zero dependencies.
 
-However, Canvas to Blob is a very suitable complement to the
+However, it is a very suitable complement to the
 [JavaScript Load Image](https://github.com/blueimp/JavaScript-Load-Image)
 function.
 
-## API
-
-In addition to the `canvas.toBlob` polyfill, the JavaScript Canvas to Blob
-script provides one additional function called `dataURLtoBlob`, which is added
-to the global window object, unless the library is loaded via a module loader
-like RequireJS, Browserify or webpack:
-
-```js
-// 80x60px GIF image (color black, base64 data):
-var b64Data =
-    'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
-    'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
-    'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
-  imageUrl = 'data:image/gif;base64,' + b64Data,
-  blob = window.dataURLtoBlob && window.dataURLtoBlob(imageUrl)
-```
-
-E.g. Via Npm/Browserify:
-
-```shell
-npm i blueimp-canvas-to-blob
-```
-
-Requiring loads the dataURLtoBlob function.
-
-```js
-var dataURLtoBlob = require('blueimp-canvas-to-blob')
-
-// 80x60px GIF image (color black, base64 data):
-var b64Data =
-    'R0lGODdhUAA8AIABAAAAAP///ywAAAAAUAA8AAACS4SPqcvtD6' +
-    'OctNqLs968+w+G4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofE' +
-    'ovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH5PKsAAA7',
-  imageUrl = 'data:image/gif;base64,' + b64Data,
-  blob = dataURLtoBlob(imageURL)
-```
-
 ## Browsers
 
-The following browsers support either the native or the polyfill
-_canvas.toBlob()_ method:
+The following browsers have native support for
+[HTMLCanvasElement.toBlob](https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob):
+
+- Chrome 50+
+- Firefox 19+
+- Safari 11+
+- Mobile Chrome 50+ (Android)
+- Mobile Firefox 4+ (Android)
+- Mobile Safari 11+ (iOS)
+- Edge 79+
+
+Browsers which implement the following APIs support `canvas.toBlob()` via
+polyfill:
+
+- [HTMLCanvasElement](https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement)
+- [HTMLCanvasElement.toDataURL](https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toDataURL)
+- [Blob() constructor](https://developer.mozilla.org/en-US/docs/Web/API/Blob/Blob)
+- [atob](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/atob)
+- [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer)
+- [Uint8Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array)
+
+This includes the following browsers:
+
+- Chrome 20+
+- Firefox 13+
+- Safari 8+
+- Mobile Chrome 25+ (Android)
+- Mobile Firefox 14+ (Android)
+- Mobile Safari 8+ (iOS)
+- Edge 74+
+- Edge Legacy 12+
+- Internet Explorer 10+
 
-### Desktop browsers
+## API
 
-- Google Chrome (see
-  [Chromium issue #67587](https://code.google.com/p/chromium/issues/detail?id=67587))
-- Apple Safari 6.0+ (see
-  [Mozilla issue #648610](https://bugzilla.mozilla.org/show_bug.cgi?id=648610))
-- Mozilla Firefox 4.0+
-- Microsoft Internet Explorer 10.0+
+In addition to the `canvas.toBlob()` polyfill, the JavaScript Canvas to Blob
+script exposes its helper function `dataURLtoBlob(url)`:
 
-### Mobile browsers
+```js
+// Uncomment the following line when using a module loader like webpack:
+// var dataURLtoBlob = require('blueimp-canvas-to-blob')
 
-- Apple Safari Mobile on iOS 6.0+
-- Google Chrome on iOS 6.0+
-- Google Chrome on Android 4.0+
+// black+white 3x2 GIF, base64 data:
+var b64 = 'R0lGODdhAwACAPEAAAAAAP///yZFySZFySH5BAEAAAIALAAAAAADAAIAAAIDRAJZADs='
+var url = 'data:image/gif;base64,' + b64
+var blob = dataURLtoBlob(url)
+```
 
 ## Test
 
-[JavaScript Canvas to Blob Test](https://blueimp.github.io/JavaScript-Canvas-to-Blob/test/)
+[Unit tests](https://blueimp.github.io/JavaScript-Canvas-to-Blob/test/)
 
 ## License
 

From f7932ba56741d9fb14c2b156fccebcd76998e4af Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 11 May 2020 02:49:32 +0900
Subject: [PATCH 75/85] 3.26.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 714fee4..5f8b16d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.25.0",
+  "version": "3.26.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 0ae5791..fc93ddc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.25.0",
+  "version": "3.26.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 3ee922d91f52b9574ad6e202fac2904acd062177 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 14 May 2020 07:57:11 +0900
Subject: [PATCH 76/85] Update vendored load-image dev dependency.

---
 test/vendor/load-image-scale.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/test/vendor/load-image-scale.js b/test/vendor/load-image-scale.js
index fe852b4..c5e381e 100644
--- a/test/vendor/load-image-scale.js
+++ b/test/vendor/load-image-scale.js
@@ -304,7 +304,6 @@
       loadImage.transformCoordinates(canvas, options, data)
       if (pixelRatio > 1) {
         canvas.style.width = canvas.width / pixelRatio + 'px'
-        canvas.style.height = canvas.height / pixelRatio + 'px'
       }
       loadImage
         .drawImage(

From c3cf5b810287450230ddce0e78d5c63c9b25fa5b Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 14 May 2020 07:57:27 +0900
Subject: [PATCH 77/85] Update dev dependencies.

---
 package-lock.json | 326 +++++++++++++++++++++++++---------------------
 package.json      |   6 +-
 2 files changed, 182 insertions(+), 150 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 5f8b16d..f3ae562 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -28,6 +28,19 @@
         "@babel/helper-validator-identifier": "^7.9.0",
         "chalk": "^2.0.0",
         "js-tokens": "^4.0.0"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        }
       }
     },
     "@types/color-name": {
@@ -37,9 +50,9 @@
       "dev": true
     },
     "acorn": {
-      "version": "7.1.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
-      "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.2.0.tgz",
+      "integrity": "sha512-apwXVmYVpQ34m/i71vrApRrRKCWQnZZF1+npOD0WV5xZFfwWOmKGQ2RWlfdy9vWITsenisM8M0Qeq8agcFHNiQ==",
       "dev": true
     },
     "acorn-jsx": {
@@ -130,14 +143,55 @@
       "dev": true
     },
     "chalk": {
-      "version": "2.4.2",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
-      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.0.0.tgz",
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+      "integrity": "sha512-cbqHunsQWnJNE6KhVSMsMeH5H/L9EpymbzqTQ3uLwNCLZ1Q481oWaofqH7nO6V07xlXwY6PhQdQ2IedWx/ZK4Q==",
       "dev": true,
       "requires": {
         "spdx-exceptions": "^2.1.0",
@@ -1034,34 +1070,15 @@
         "emoji-regex": "^8.0.0",
         "is-fullwidth-code-point": "^3.0.0",
         "strip-ansi": "^6.0.0"
-      },
-      "dependencies": {
-        "strip-ansi": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
-          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^5.0.0"
-          }
-        }
       }
     },
     "strip-ansi": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
-      "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
+      "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
       "dev": true,
       "requires": {
-        "ansi-regex": "^4.1.0"
-      },
-      "dependencies": {
-        "ansi-regex": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
-          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
-          "dev": true
-        }
+        "ansi-regex": "^5.0.0"
       }
     },
     "strip-json-comments": {
@@ -1091,6 +1108,12 @@
         "string-width": "^3.0.0"
       },
       "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
         "emoji-regex": {
           "version": "7.0.3",
           "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
@@ -1113,6 +1136,15 @@
             "is-fullwidth-code-point": "^2.0.0",
             "strip-ansi": "^5.1.0"
           }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
         }
       }
     },
@@ -1138,18 +1170,18 @@
       }
     },
     "tslib": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
-      "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA==",
+      "version": "1.13.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+      "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
       "dev": true
     },
     "type-check": {
-      "version": "0.3.2",
-      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
-      "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
+      "integrity": "sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==",
       "dev": true,
       "requires": {
-        "prelude-ls": "~1.1.2"
+        "prelude-ls": "^1.2.1"
       }
     },
     "type-fest": {
@@ -1159,9 +1191,9 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.9.1",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.1.tgz",
-      "integrity": "sha512-JUPoL1jHsc9fOjVFHdQIhqEEJsQvfKDjlubcCilu8U26uZ73qOg8VsN8O1jbuei44ZPlwL7kmbAdM4tzaUvqnA==",
+      "version": "3.9.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.3.tgz",
+      "integrity": "sha512-r5ImcL6QyzQGVimQoov3aL2ZScywrOgBXGndbWrdehKoSvGe/RmiE5Jpw/v+GvxODt6l2tpBXwA7n+qZVlHBMA==",
       "dev": true,
       "requires": {
         "commander": "~2.20.3"
@@ -1183,9 +1215,9 @@
       "dev": true
     },
     "which": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
-      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
       "dev": true,
       "requires": {
         "isexe": "^2.0.0"
diff --git a/package.json b/package.json
index fc93ddc..230af39 100644
--- a/package.json
+++ b/package.json
@@ -21,10 +21,10 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "eslint": "6",
-    "eslint-config-blueimp": "1",
+    "eslint": "7",
+    "eslint-config-blueimp": "2",
     "eslint-config-prettier": "6",
-    "eslint-plugin-jsdoc": "24",
+    "eslint-plugin-jsdoc": "25",
     "eslint-plugin-prettier": "3",
     "prettier": "2",
     "uglify-js": "3"

From 53743bc487ac5cf454cabe8cce7eb400ab4e4f80 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Thu, 14 May 2020 07:58:11 +0900
Subject: [PATCH 78/85] 3.27.0

---
 js/canvas-to-blob.min.js     | 2 +-
 js/canvas-to-blob.min.js.map | 2 +-
 package-lock.json            | 2 +-
 package.json                 | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/js/canvas-to-blob.min.js b/js/canvas-to-blob.min.js
index 33536de..e0faa13 100644
--- a/js/canvas-to-blob.min.js
+++ b/js/canvas-to-blob.min.js
@@ -1,2 +1,2 @@
-!function(t){"use strict";var a=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,b=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),f=b&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),B=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,s=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,r=(b||B)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,a,r,i,l,u,c;if(!(e=t.match(s)))throw new Error("invalid data URI");for(o=e[2]?e[1]:"text/plain"+(e[3]||";charset=US-ASCII"),n=!!e[4],a=t.slice(e[0].length),r=(n?atob:decodeURIComponent)(a),i=new ArrayBuffer(r.length),l=new Uint8Array(i),u=0;u<r.length;u+=1)l[u]=r.charCodeAt(u);return b?new Blob([f?l:i],{type:o}):((c=new B).append(i),c.getBlob(o))};t.HTMLCanvasElement&&!a.toBlob&&(a.mozGetAsFile?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:a.toDataURL&&r&&(a.msToBlob?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){(e&&"image/png"!==e||o)&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.msToBlob(e))})}:a.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(r(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return r}):"object"==typeof module&&module.exports?module.exports=r:t.dataURLtoBlob=r}(window);
+!function(t){"use strict";var a=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,b=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),f=b&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),B=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,s=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,r=(b||B)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,a,r,i,l,u,c=t.match(s);if(!c)throw new Error("invalid data URI");for(e=c[2]?c[1]:"text/plain"+(c[3]||";charset=US-ASCII"),o=!!c[4],n=t.slice(c[0].length),a=(o?atob:decodeURIComponent)(n),r=new ArrayBuffer(a.length),i=new Uint8Array(r),l=0;l<a.length;l+=1)i[l]=a.charCodeAt(l);return b?new Blob([f?i:r],{type:e}):((u=new B).append(r),u.getBlob(e))};t.HTMLCanvasElement&&!a.toBlob&&(a.mozGetAsFile?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:a.toDataURL&&r&&(a.msToBlob?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){(e&&"image/png"!==e||o)&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.msToBlob(e))})}:a.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(r(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return r}):"object"==typeof module&&module.exports?module.exports=r:t.dataURLtoBlob=r}(window);
 //# sourceMappingURL=canvas-to-blob.min.js.map
\ No newline at end of file
diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 122791d..190b331 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","matches","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","msToBlob","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,GACV,aAEA,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IAAIC,EACFC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAGF,KADAR,EAAUD,EAAQU,MAAMd,IAEtB,MAAM,IAAIe,MAAM,oBAkBlB,IAfAT,EAAYD,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCE,IAAaF,EAAQ,GACrBG,EAAaJ,EAAQY,MAAMX,EAAQ,GAAGY,QAGpCR,GAFEF,EAEWL,KAGAgB,oBAHKV,GAMpBE,EAAc,IAAIP,YAAYM,EAAWQ,QACzCN,EAAW,IAAIjB,WAAWgB,GACrBE,EAAI,EAAGA,EAAIH,EAAWQ,OAAQL,GAAK,EACtCD,EAASC,GAAKH,EAAWU,WAAWP,GAGtC,OAAIvB,EACK,IAAIC,KAAK,CAACG,EAA4BkB,EAAWD,GAAc,CACpEU,KAAMd,MAGVO,EAAK,IAAIjB,GACNyB,OAAOX,GACHG,EAAGS,QAAQhB,KAElBrB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IAClCf,EAAgB6C,SAClB7C,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,YAELT,GAAiB,cAATA,GAAyBM,IACnCxC,EAAgB4C,WAChB7B,EAEAwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKI,SAASX,OAK7BlC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAMhC,mBAAXM,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO/B,IAEkB,iBAAXiC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUlC,EAEjBhB,EAAOgB,cAAgBA,EA5H1B,CA8HEhB"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","matches","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","msToBlob","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,gBAGV,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IACEC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAEFC,EAAUT,EAAQU,MAAMd,GACxB,IAAKa,EACH,MAAM,IAAIE,MAAM,oBAkBlB,IAfAV,EAAYQ,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCP,IAAaO,EAAQ,GACrBN,EAAaH,EAAQY,MAAMH,EAAQ,GAAGI,QAGpCT,GAFEF,EAEWJ,KAGAgB,oBAHKX,GAMpBE,EAAc,IAAIN,YAAYK,EAAWS,QACzCP,EAAW,IAAIhB,WAAWe,GACrBE,EAAI,EAAGA,EAAIH,EAAWS,OAAQN,GAAK,EACtCD,EAASC,GAAKH,EAAWW,WAAWR,GAGtC,OAAItB,EACK,IAAIC,KAAK,CAACG,EAA4BiB,EAAWD,GAAc,CACpEW,KAAMf,MAGVO,EAAK,IAAIhB,GACNyB,OAAOZ,GACHG,EAAGU,QAAQjB,KAElBpB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IAClCf,EAAgB6C,SAClB7C,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,YAELT,GAAiB,cAATA,GAAyBM,IACnCxC,EAAgB4C,WAChB7B,EAEAwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKI,SAASX,OAK7BlC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAMhC,mBAAXM,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO/B,IAEkB,iBAAXiC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUlC,EAEjBhB,EAAOgB,cAAgBA,EA5H1B,CA8HEhB"}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index f3ae562..4ac5683 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.26.0",
+  "version": "3.27.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 230af39..34d9af4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.26.0",
+  "version": "3.27.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From ba769250d765b305b3e2e96144074a506ea24a4e Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Jul 2020 11:41:25 +0900
Subject: [PATCH 79/85] Update dev dependencies.

---
 package-lock.json    |  512 ++---
 package.json         |    2 +-
 test/vendor/mocha.js | 4617 ++++++++++++++++++++++--------------------
 3 files changed, 2546 insertions(+), 2585 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 4ac5683..fb836d7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,27 +5,27 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.3.tgz",
-      "integrity": "sha512-a9gxpmdXtZEInkCSHUJDLHZVBgb1QS0jhss4cPP93EW7s+uC5bikET2twEF3KV+7rDblJcmNvTR7VJejqd2C2g==",
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.10.4.tgz",
+      "integrity": "sha512-vG6SvB6oYEhvgisZNFRmRCUkLz11c7rp+tbNTynGqc6mS1d5ATd/sGyV6W0KZZnXRKMTzZDRgQT3Ou9jhpAfUg==",
       "dev": true,
       "requires": {
-        "@babel/highlight": "^7.8.3"
+        "@babel/highlight": "^7.10.4"
       }
     },
     "@babel/helper-validator-identifier": {
-      "version": "7.9.5",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.5.tgz",
-      "integrity": "sha512-/8arLKUFq882w4tWGj9JYzRpAlZgiWUJ+dtteNTDqrRBz9Iguck9Rn3ykuBDoUwh2TO4tSAJlrxDUOXWklJe4g==",
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz",
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-      "version": "3.9.3",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.3.tgz",
-      "integrity": "sha512-r5ImcL6QyzQGVimQoov3aL2ZScywrOgBXGndbWrdehKoSvGe/RmiE5Jpw/v+GvxODt6l2tpBXwA7n+qZVlHBMA==",
-      "dev": true,
-      "requires": {
-        "commander": "~2.20.3"
-      }
+      "version": "3.10.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.0.tgz",
+      "integrity": "sha512-Esj5HG5WAyrLIdYU74Z3JdG2PxdIusvj6IWHMtlyESxc7kcDz7zYlYjpnSokn1UbpV0d/QX9fan7gkCNd/9BQA==",
+      "dev": true
     },
     "uri-js": {
       "version": "4.2.2",
@@ -1209,9 +951,9 @@
       }
     },
     "v8-compile-cache": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.0.tgz",
-      "integrity": "sha512-usZBT3PW+LOjM25wbqIlZwPeJV+3OSz3M1k1Ws8snlW39dZyYL9lOGC5FgPVHfk0jKmjiDV8Z0mIbVQPiwFs7g==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.1.tgz",
+      "integrity": "sha512-8OQ9CL+VWyt3JStj7HX7/ciTL2V3Rl1Wf5OL+SNTm0yK1KvtReVulksyeRnCANHHuUxHlQig+JJDlUhBt1NQDQ==",
       "dev": true
     },
     "which": {
diff --git a/package.json b/package.json
index 34d9af4..641d171 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "eslint": "7",
     "eslint-config-blueimp": "2",
     "eslint-config-prettier": "6",
-    "eslint-plugin-jsdoc": "25",
+    "eslint-plugin-jsdoc": "30",
     "eslint-plugin-prettier": "3",
     "prettier": "2",
     "uglify-js": "3"
diff --git a/test/vendor/mocha.js b/test/vendor/mocha.js
index 5be2b9e..159b647 100644
--- a/test/vendor/mocha.js
+++ b/test/vendor/mocha.js
@@ -54,6 +54,17 @@ process.removeListener = function(e, fn) {
   }
 };
 
+/**
+ * Implements listenerCount for 'uncaughtException'.
+ */
+
+process.listenerCount = function(name) {
+  if (name === 'uncaughtException') {
+    return uncaughtExceptionHandlers.length;
+  }
+  return 0;
+};
+
 /**
  * Implements uncaughtException listener.
  */
@@ -193,8 +204,8 @@ global.mocha = mocha;
 module.exports = global;
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./lib/mocha":14,"_process":69,"browser-stdout":41}],2:[function(require,module,exports){
-(function (process,global){
+},{"./lib/mocha":14,"_process":67,"browser-stdout":41}],2:[function(require,module,exports){
+(function (global){
 'use strict';
 
 /**
@@ -208,6 +219,7 @@ module.exports = global;
 var Date = global.Date;
 var setTimeout = global.setTimeout;
 var EVENT_RUN_END = require('../runner').constants.EVENT_RUN_END;
+var isBrowser = require('../utils').isBrowser;
 
 /**
  * Checks if browser notification support exists.
@@ -222,7 +234,7 @@ var EVENT_RUN_END = require('../runner').constants.EVENT_RUN_END;
 exports.isCapable = function() {
   var hasNotificationSupport = 'Notification' in window;
   var hasPromiseSupport = typeof Promise === 'function';
-  return process.browser && hasNotificationSupport && hasPromiseSupport;
+  return isBrowser() && hasNotificationSupport && hasPromiseSupport;
 };
 
 /**
@@ -364,8 +376,8 @@ function notPermitted(err) {
   console.error('notification error:', err.message);
 }
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../../package":90,"../runner":34,"_process":69}],3:[function(require,module,exports){
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"../../package":90,"../runner":34,"../utils":38}],3:[function(require,module,exports){
 'use strict';
 
 /**
@@ -551,21 +563,6 @@ Context.prototype.timeout = function(ms) {
   return this;
 };
 
-/**
- * Set test timeout `enabled`.
- *
- * @private
- * @param {boolean} enabled
- * @return {Context} self
- */
-Context.prototype.enableTimeouts = function(enabled) {
-  if (!arguments.length) {
-    return this.runnable().enableTimeouts();
-  }
-  this.runnable().enableTimeouts(enabled);
-  return this;
-};
-
 /**
  * Set or get test slowness threshold `ms`.
  *
@@ -608,12 +605,80 @@ Context.prototype.retries = function(n) {
 
 },{}],6:[function(require,module,exports){
 'use strict';
+
+var format = require('util').format;
+
 /**
+ * Factory functions to create throwable error objects
  * @module Errors
  */
+
 /**
- * Factory functions to create throwable error objects
+ * When Mocha throw exceptions (or otherwise errors), it attempts to assign a
+ * `code` property to the `Error` object, for easier handling.  These are the
+ * potential values of `code`.
  */
+var constants = {
+  /**
+   * An unrecoverable error.
+   */
+  FATAL: 'ERR_MOCHA_FATAL',
+
+  /**
+   * The type of an argument to a function call is invalid
+   */
+  INVALID_ARG_TYPE: 'ERR_MOCHA_INVALID_ARG_TYPE',
+
+  /**
+   * The value of an argument to a function call is invalid
+   */
+  INVALID_ARG_VALUE: 'ERR_MOCHA_INVALID_ARG_VALUE',
+
+  /**
+   * Something was thrown, but it wasn't an `Error`
+   */
+  INVALID_EXCEPTION: 'ERR_MOCHA_INVALID_EXCEPTION',
+
+  /**
+   * An interface (e.g., `Mocha.interfaces`) is unknown or invalid
+   */
+  INVALID_INTERFACE: 'ERR_MOCHA_INVALID_INTERFACE',
+
+  /**
+   * A reporter (.e.g, `Mocha.reporters`) is unknown or invalid
+   */
+  INVALID_REPORTER: 'ERR_MOCHA_INVALID_REPORTER',
+
+  /**
+   * `done()` was called twice in a `Test` or `Hook` callback
+   */
+  MULTIPLE_DONE: 'ERR_MOCHA_MULTIPLE_DONE',
+
+  /**
+   * No files matched the pattern provided by the user
+   */
+  NO_FILES_MATCH_PATTERN: 'ERR_MOCHA_NO_FILES_MATCH_PATTERN',
+
+  /**
+   * Known, but unsupported behavior of some kind
+   */
+  UNSUPPORTED: 'ERR_MOCHA_UNSUPPORTED',
+
+  /**
+   * Invalid state transition occuring in `Mocha` instance
+   */
+  INSTANCE_ALREADY_RUNNING: 'ERR_MOCHA_INSTANCE_ALREADY_RUNNING',
+
+  /**
+   * Invalid state transition occuring in `Mocha` instance
+   */
+  INSTANCE_ALREADY_DISPOSED: 'ERR_MOCHA_INSTANCE_ALREADY_DISPOSED',
+
+  /**
+   * Use of `only()` w/ `--forbid-only` results in this error.
+   */
+  FORBIDDEN_EXCLUSIVITY: 'ERR_MOCHA_FORBIDDEN_EXCLUSIVITY'
+};
 
 /**
  * Creates an error object to be thrown when no files to be tested could be found using specified pattern.
@@ -625,7 +690,7 @@ Context.prototype.retries = function(n) {
  */
 function createNoFilesMatchPatternError(message, pattern) {
   var err = new Error(message);
-  err.code = 'ERR_MOCHA_NO_FILES_MATCH_PATTERN';
+  err.code = constants.NO_FILES_MATCH_PATTERN;
   err.pattern = pattern;
   return err;
 }
@@ -640,7 +705,7 @@ function createNoFilesMatchPatternError(message, pattern) {
  */
 function createInvalidReporterError(message, reporter) {
   var err = new TypeError(message);
-  err.code = 'ERR_MOCHA_INVALID_REPORTER';
+  err.code = constants.INVALID_REPORTER;
   err.reporter = reporter;
   return err;
 }
@@ -655,7 +720,7 @@ function createInvalidReporterError(message, reporter) {
  */
 function createInvalidInterfaceError(message, ui) {
   var err = new Error(message);
-  err.code = 'ERR_MOCHA_INVALID_INTERFACE';
+  err.code = constants.INVALID_INTERFACE;
   err.interface = ui;
   return err;
 }
@@ -669,7 +734,7 @@ function createInvalidInterfaceError(message, ui) {
  */
 function createUnsupportedError(message) {
   var err = new Error(message);
-  err.code = 'ERR_MOCHA_UNSUPPORTED';
+  err.code = constants.UNSUPPORTED;
   return err;
 }
 
@@ -697,7 +762,7 @@ function createMissingArgumentError(message, argument, expected) {
  */
 function createInvalidArgumentTypeError(message, argument, expected) {
   var err = new TypeError(message);
-  err.code = 'ERR_MOCHA_INVALID_ARG_TYPE';
+  err.code = constants.INVALID_ARG_TYPE;
   err.argument = argument;
   err.expected = expected;
   err.actual = typeof argument;
@@ -716,7 +781,7 @@ function createInvalidArgumentTypeError(message, argument, expected) {
  */
 function createInvalidArgumentValueError(message, argument, value, reason) {
   var err = new TypeError(message);
-  err.code = 'ERR_MOCHA_INVALID_ARG_VALUE';
+  err.code = constants.INVALID_ARG_VALUE;
   err.argument = argument;
   err.value = value;
   err.reason = typeof reason !== 'undefined' ? reason : 'is invalid';
@@ -732,12 +797,130 @@ function createInvalidArgumentValueError(message, argument, value, reason) {
  */
 function createInvalidExceptionError(message, value) {
   var err = new Error(message);
-  err.code = 'ERR_MOCHA_INVALID_EXCEPTION';
+  err.code = constants.INVALID_EXCEPTION;
+  err.valueType = typeof value;
+  err.value = value;
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when an unrecoverable error occurs.
+ *
+ * @public
+ * @param {string} message - Error message to be displayed.
+ * @returns {Error} instance detailing the error condition
+ */
+function createFatalError(message, value) {
+  var err = new Error(message);
+  err.code = constants.FATAL;
   err.valueType = typeof value;
   err.value = value;
   return err;
 }
 
+/**
+ * Dynamically creates a plugin-type-specific error based on plugin type
+ * @param {string} message - Error message
+ * @param {"reporter"|"interface"} pluginType - Plugin type. Future: expand as needed
+ * @param {string} [pluginId] - Name/path of plugin, if any
+ * @throws When `pluginType` is not known
+ * @public
+ * @returns {Error}
+ */
+function createInvalidPluginError(message, pluginType, pluginId) {
+  switch (pluginType) {
+    case 'reporter':
+      return createInvalidReporterError(message, pluginId);
+    case 'interface':
+      return createInvalidInterfaceError(message, pluginId);
+    default:
+      throw new Error('unknown pluginType "' + pluginType + '"');
+  }
+}
+
+/**
+ * Creates an error object to be thrown when a mocha object's `run` method is executed while it is already disposed.
+ * @param {string} message The error message to be displayed.
+ * @param {boolean} cleanReferencesAfterRun the value of `cleanReferencesAfterRun`
+ * @param {Mocha} instance the mocha instance that throw this error
+ */
+function createMochaInstanceAlreadyDisposedError(
+  message,
+  cleanReferencesAfterRun,
+  instance
+) {
+  var err = new Error(message);
+  err.code = constants.INSTANCE_ALREADY_DISPOSED;
+  err.cleanReferencesAfterRun = cleanReferencesAfterRun;
+  err.instance = instance;
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when a mocha object's `run` method is called while a test run is in progress.
+ * @param {string} message The error message to be displayed.
+ */
+function createMochaInstanceAlreadyRunningError(message, instance) {
+  var err = new Error(message);
+  err.code = constants.INSTANCE_ALREADY_RUNNING;
+  err.instance = instance;
+  return err;
+}
+
+/*
+ * Creates an error object to be thrown when done() is called multiple times in a test
+ *
+ * @public
+ * @param {Runnable} runnable - Original runnable
+ * @param {Error} [originalErr] - Original error, if any
+ * @returns {Error} instance detailing the error condition
+ */
+function createMultipleDoneError(runnable, originalErr) {
+  var title;
+  try {
+    title = format('<%s>', runnable.fullTitle());
+    if (runnable.parent.root) {
+      title += ' (of root suite)';
+    }
+  } catch (ignored) {
+    title = format('<%s> (of unknown suite)', runnable.title);
+  }
+  var message = format(
+    'done() called multiple times in %s %s',
+    runnable.type ? runnable.type : 'unknown runnable',
+    title
+  );
+  if (runnable.file) {
+    message += format(' of file %s', runnable.file);
+  }
+  if (originalErr) {
+    message += format('; in addition, done() received error: %s', originalErr);
+  }
+
+  var err = new Error(message);
+  err.code = constants.MULTIPLE_DONE;
+  err.valueType = typeof originalErr;
+  err.value = originalErr;
+  return err;
+}
+
+/**
+ * Creates an error object to be thrown when `.only()` is used with
+ * `--forbid-only`.
+ * @public
+ * @param {Mocha} mocha - Mocha instance
+ * @returns {Error} Error with code {@link constants.FORBIDDEN_EXCLUSIVITY}
+ */
+function createForbiddenExclusivityError(mocha) {
+  var err = new Error(
+    mocha.isWorker
+      ? '`.only` is not supported in parallel mode'
+      : '`.only` forbidden by --forbid-only'
+  );
+  err.code = constants.FORBIDDEN_EXCLUSIVITY;
+  return err;
+}
+
 module.exports = {
   createInvalidArgumentTypeError: createInvalidArgumentTypeError,
   createInvalidArgumentValueError: createInvalidArgumentValueError,
@@ -746,10 +929,17 @@ module.exports = {
   createInvalidReporterError: createInvalidReporterError,
   createMissingArgumentError: createMissingArgumentError,
   createNoFilesMatchPatternError: createNoFilesMatchPatternError,
-  createUnsupportedError: createUnsupportedError
+  createUnsupportedError: createUnsupportedError,
+  createInvalidPluginError: createInvalidPluginError,
+  createMochaInstanceAlreadyDisposedError: createMochaInstanceAlreadyDisposedError,
+  createMochaInstanceAlreadyRunningError: createMochaInstanceAlreadyRunningError,
+  createFatalError: createFatalError,
+  createMultipleDoneError: createMultipleDoneError,
+  createForbiddenExclusivityError: createForbiddenExclusivityError,
+  constants: constants
 };
 
-},{}],7:[function(require,module,exports){
+},{"util":89}],7:[function(require,module,exports){
 'use strict';
 
 var Runnable = require('./runnable');
@@ -779,6 +969,14 @@ function Hook(title, fn) {
  */
 inherits(Hook, Runnable);
 
+/**
+ * Resets the state for a next run.
+ */
+Hook.prototype.reset = function() {
+  Runnable.prototype.reset.call(this);
+  delete this._error;
+};
+
 /**
  * Get or set the test `err`.
  *
@@ -797,6 +995,30 @@ Hook.prototype.error = function(err) {
   this._error = err;
 };
 
+/**
+ * Returns an object suitable for IPC.
+ * Functions are represented by keys beginning with `$$`.
+ * @private
+ * @returns {Object}
+ */
+Hook.prototype.serialize = function serialize() {
+  return {
+    $$isPending: this.isPending(),
+    $$titlePath: this.titlePath(),
+    ctx: {
+      currentTest: {
+        title: this.ctx && this.ctx.currentTest && this.ctx.currentTest.title
+      }
+    },
+    parent: {
+      root: this.parent.root,
+      title: this.parent.title
+    },
+    title: this.title,
+    type: this.type
+  };
+};
+
 },{"./runnable":33,"./utils":38}],8:[function(require,module,exports){
 'use strict';
 
@@ -923,6 +1145,8 @@ module.exports.description = 'BDD or RSpec style [default]';
 var Suite = require('../suite');
 var errors = require('../errors');
 var createMissingArgumentError = errors.createMissingArgumentError;
+var createUnsupportedError = errors.createUnsupportedError;
+var createForbiddenExclusivityError = errors.createForbiddenExclusivityError;
 
 /**
  * Functions common to more than one interface.
@@ -1012,6 +1236,9 @@ module.exports = function(suites, context, mocha) {
        * @returns {Suite}
        */
       only: function only(opts) {
+        if (mocha.options.forbidOnly) {
+          throw createForbiddenExclusivityError(mocha);
+        }
         opts.isOnly = true;
         return this.create(opts);
       },
@@ -1045,16 +1272,14 @@ module.exports = function(suites, context, mocha) {
         suite.file = opts.file;
         suites.unshift(suite);
         if (opts.isOnly) {
-          if (mocha.options.forbidOnly && shouldBeTested(suite)) {
-            throw new Error('`.only` forbidden');
-          }
-
-          suite.parent.appendOnlySuite(suite);
+          suite.markOnly();
         }
-        if (suite.pending) {
-          if (mocha.options.forbidPending && shouldBeTested(suite)) {
-            throw new Error('Pending test forbidden');
-          }
+        if (
+          suite.pending &&
+          mocha.options.forbidPending &&
+          shouldBeTested(suite)
+        ) {
+          throw createUnsupportedError('Pending test forbidden');
         }
         if (typeof opts.fn === 'function') {
           opts.fn.call(suite);
@@ -1085,7 +1310,10 @@ module.exports = function(suites, context, mocha) {
        * @returns {*}
        */
       only: function(mocha, test) {
-        test.parent.appendOnlyTest(test);
+        if (mocha.options.forbidOnly) {
+          throw createForbiddenExclusivityError(mocha);
+        }
+        test.markOnly();
         return test;
       },
 
@@ -1391,7 +1619,7 @@ module.exports.description =
   'traditional "suite"/"test" instead of BDD\'s "describe"/"it"';
 
 },{"../suite":36,"../test":37,"./common":9}],14:[function(require,module,exports){
-(function (process,global){
+(function (global){
 'use strict';
 
 /*!
@@ -1403,28 +1631,59 @@ module.exports.description =
 var escapeRe = require('escape-string-regexp');
 var path = require('path');
 var builtinReporters = require('./reporters');
-var growl = require('./growl');
+var growl = require('./nodejs/growl');
 var utils = require('./utils');
 var mocharc = require('./mocharc.json');
 var errors = require('./errors');
 var Suite = require('./suite');
-var esmUtils = utils.supportsEsModules() ? require('./esm-utils') : undefined;
+var esmUtils = utils.supportsEsModules(true)
+  ? require('./esm-utils')
+  : undefined;
 var createStatsCollector = require('./stats-collector');
 var createInvalidReporterError = errors.createInvalidReporterError;
 var createInvalidInterfaceError = errors.createInvalidInterfaceError;
+var createMochaInstanceAlreadyDisposedError =
+  errors.createMochaInstanceAlreadyDisposedError;
+var createMochaInstanceAlreadyRunningError =
+  errors.createMochaInstanceAlreadyRunningError;
 var EVENT_FILE_PRE_REQUIRE = Suite.constants.EVENT_FILE_PRE_REQUIRE;
 var EVENT_FILE_POST_REQUIRE = Suite.constants.EVENT_FILE_POST_REQUIRE;
 var EVENT_FILE_REQUIRE = Suite.constants.EVENT_FILE_REQUIRE;
 var sQuote = utils.sQuote;
+var debug = require('debug')('mocha:mocha');
 
 exports = module.exports = Mocha;
 
+/**
+ * A Mocha instance is a finite state machine.
+ * These are the states it can be in.
+ */
+var mochaStates = utils.defineConstants({
+  /**
+   * Initial state of the mocha instance
+   */
+  INIT: 'init',
+  /**
+   * Mocha instance is running tests
+   */
+  RUNNING: 'running',
+  /**
+   * Mocha instance is done running tests and references to test functions and hooks are cleaned.
+   * You can reset this state by unloading the test files.
+   */
+  REFERENCES_CLEANED: 'referencesCleaned',
+  /**
+   * Mocha instance is disposed and can no longer be used.
+   */
+  DISPOSED: 'disposed'
+});
+
 /**
  * To require local UIs and reporters when running in node.
  */
 
-if (!process.browser) {
-  var cwd = process.cwd();
+if (!utils.isBrowser() && typeof module.paths !== 'undefined') {
+  var cwd = utils.cwd();
   module.paths.push(cwd, path.join(cwd, 'node_modules'));
 }
 
@@ -1432,11 +1691,6 @@ if (!process.browser) {
  * Expose internals.
  */
 
-/**
- * @public
- * @class utils
- * @memberof Mocha
- */
 exports.utils = utils;
 exports.interfaces = require('./interfaces');
 /**
@@ -1484,6 +1738,11 @@ exports.Test = require('./test');
  * @param {number} [options.slow] - Slow threshold value.
  * @param {number|string} [options.timeout] - Timeout threshold value.
  * @param {string} [options.ui] - Interface name.
+ * @param {boolean} [options.parallel] - Run jobs in parallel
+ * @param {number} [options.jobs] - Max number of worker processes for parallel runs
+ * @param {MochaRootHookObject} [options.rootHooks] - Hooks to bootstrap the root
+ * suite with
+ * @param {boolean} [options.isWorker] - Should be `true` if `Mocha` process is running in a worker process.
  */
 function Mocha(options) {
   options = utils.assign({}, mocharc, options || {});
@@ -1491,6 +1750,8 @@ function Mocha(options) {
   this.options = options;
   // root suite
   this.suite = new exports.Suite('', new exports.Context(), true);
+  this._cleanReferencesAfterRun = true;
+  this._state = mochaStates.INIT;
 
   this.grep(options.grep)
     .fgrep(options.fgrep)
@@ -1530,6 +1791,43 @@ function Mocha(options) {
       this[opt]();
     }
   }, this);
+
+  if (options.rootHooks) {
+    this.rootHooks(options.rootHooks);
+  }
+
+  /**
+   * The class which we'll instantiate in {@link Mocha#run}.  Defaults to
+   * {@link Runner} in serial mode; changes in parallel mode.
+   * @memberof Mocha
+   * @private
+   */
+  this._runnerClass = exports.Runner;
+
+  /**
+   * Whether or not to call {@link Mocha#loadFiles} implicitly when calling
+   * {@link Mocha#run}.  If this is `true`, then it's up to the consumer to call
+   * {@link Mocha#loadFiles} _or_ {@link Mocha#loadFilesAsync}.
+   * @private
+   * @memberof Mocha
+   */
+  this._lazyLoadFiles = false;
+
+  /**
+   * It's useful for a Mocha instance to know if it's running in a worker process.
+   * We could derive this via other means, but it's helpful to have a flag to refer to.
+   * @memberof Mocha
+   * @private
+   */
+  this.isWorker = Boolean(options.isWorker);
+
+  if (
+    options.parallel &&
+    (typeof options.jobs === 'undefined' || options.jobs > 1)
+  ) {
+    debug('attempting to enable parallel mode');
+    this.parallelMode(true);
+  }
 }
 
 /**
@@ -1580,52 +1878,52 @@ Mocha.prototype.addFile = function(file) {
  * // Use XUnit reporter and direct its output to file
  * mocha.reporter('xunit', { output: '/path/to/testspec.xunit.xml' });
  */
-Mocha.prototype.reporter = function(reporter, reporterOptions) {
-  if (typeof reporter === 'function') {
-    this._reporter = reporter;
+Mocha.prototype.reporter = function(reporterName, reporterOptions) {
+  if (typeof reporterName === 'function') {
+    this._reporter = reporterName;
   } else {
-    reporter = reporter || 'spec';
-    var _reporter;
+    reporterName = reporterName || 'spec';
+    var reporter;
     // Try to load a built-in reporter.
-    if (builtinReporters[reporter]) {
-      _reporter = builtinReporters[reporter];
+    if (builtinReporters[reporterName]) {
+      reporter = builtinReporters[reporterName];
     }
     // Try to load reporters from process.cwd() and node_modules
-    if (!_reporter) {
+    if (!reporter) {
       try {
-        _reporter = require(reporter);
+        reporter = require(reporterName);
       } catch (err) {
         if (
-          err.code !== 'MODULE_NOT_FOUND' ||
-          err.message.indexOf('Cannot find module') !== -1
+          err.code === 'MODULE_NOT_FOUND' ||
+          err.message.indexOf('Cannot find module') >= 0
         ) {
           // Try to load reporters from a path (absolute or relative)
           try {
-            _reporter = require(path.resolve(process.cwd(), reporter));
+            reporter = require(path.resolve(utils.cwd(), reporterName));
           } catch (_err) {
-            _err.code !== 'MODULE_NOT_FOUND' ||
-            _err.message.indexOf('Cannot find module') !== -1
-              ? console.warn(sQuote(reporter) + ' reporter not found')
-              : console.warn(
-                  sQuote(reporter) +
+            _err.code === 'MODULE_NOT_FOUND' ||
+            _err.message.indexOf('Cannot find module') >= 0
+              ? utils.warn(sQuote(reporterName) + ' reporter not found')
+              : utils.warn(
+                  sQuote(reporterName) +
                     ' reporter blew up with error:\n' +
                     err.stack
                 );
           }
         } else {
-          console.warn(
-            sQuote(reporter) + ' reporter blew up with error:\n' + err.stack
+          utils.warn(
+            sQuote(reporterName) + ' reporter blew up with error:\n' + err.stack
           );
         }
       }
     }
-    if (!_reporter) {
+    if (!reporter) {
       throw createInvalidReporterError(
-        'invalid reporter ' + sQuote(reporter),
-        reporter
+        'invalid reporter ' + sQuote(reporterName),
+        reporterName
       );
     }
-    this._reporter = _reporter;
+    this._reporter = reporter;
   }
   this.options.reporterOption = reporterOptions;
   // alias option name is used in public reporters xunit/tap/progress
@@ -1734,7 +2032,7 @@ Mocha.prototype.loadFiles = function(fn) {
 Mocha.prototype.loadFilesAsync = function() {
   var self = this;
   var suite = this.suite;
-  this.loadAsync = true;
+  this.lazyLoadFiles(true);
 
   if (!esmUtils) {
     return new Promise(function(resolve) {
@@ -1782,7 +2080,18 @@ Mocha.unloadFile = function(file) {
  * @chainable
  */
 Mocha.prototype.unloadFiles = function() {
-  this.files.forEach(Mocha.unloadFile);
+  if (this._state === mochaStates.DISPOSED) {
+    throw createMochaInstanceAlreadyDisposedError(
+      'Mocha instance is already disposed, it cannot be used again.',
+      this._cleanReferencesAfterRun,
+      this
+    );
+  }
+
+  this.files.forEach(function(file) {
+    Mocha.unloadFile(file);
+  });
+  this._state = mochaStates.INIT;
   return this;
 };
 
@@ -1869,37 +2178,51 @@ Mocha.prototype.invert = function() {
 };
 
 /**
- * Enables or disables ignoring global leaks.
+ * Enables or disables checking for global variables leaked while running tests.
  *
- * @deprecated since v7.0.0
  * @public
- * @see {@link Mocha#checkLeaks}
- * @param {boolean} [ignoreLeaks=false] - Whether to ignore global leaks.
+ * @see [CLI option](../#-check-leaks)
+ * @param {boolean} [checkLeaks=true] - Whether to check for global variable leaks.
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.ignoreLeaks = function(ignoreLeaks) {
-  utils.deprecate(
-    '"ignoreLeaks()" is DEPRECATED, please use "checkLeaks()" instead.'
-  );
-  this.options.checkLeaks = !ignoreLeaks;
+Mocha.prototype.checkLeaks = function(checkLeaks) {
+  this.options.checkLeaks = checkLeaks !== false;
   return this;
 };
 
 /**
- * Enables or disables checking for global variables leaked while running tests.
- *
+ * Enables or disables whether or not to dispose after each test run.
+ * Disable this to ensure you can run the test suite multiple times.
+ * If disabled, be sure to dispose mocha when you're done to prevent memory leaks.
  * @public
- * @see [CLI option](../#-check-leaks)
- * @param {boolean} [checkLeaks=true] - Whether to check for global variable leaks.
+ * @see {@link Mocha#dispose}
+ * @param {boolean} cleanReferencesAfterRun
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.checkLeaks = function(checkLeaks) {
-  this.options.checkLeaks = checkLeaks !== false;
+Mocha.prototype.cleanReferencesAfterRun = function(cleanReferencesAfterRun) {
+  this._cleanReferencesAfterRun = cleanReferencesAfterRun !== false;
   return this;
 };
 
+/**
+ * Manually dispose this mocha instance. Mark this instance as `disposed` and unable to run more tests.
+ * It also removes function references to tests functions and hooks, so variables trapped in closures can be cleaned by the garbage collector.
+ * @public
+ */
+Mocha.prototype.dispose = function() {
+  if (this._state === mochaStates.RUNNING) {
+    throw createMochaInstanceAlreadyRunningError(
+      'Cannot dispose while the mocha instance is still running tests.'
+    );
+  }
+  this.unloadFiles();
+  this._previousRunner && this._previousRunner.dispose();
+  this.suite.dispose();
+  this._state = mochaStates.DISPOSED;
+};
+
 /**
  * Displays full stack trace upon test failure.
  *
@@ -1925,7 +2248,7 @@ Mocha.prototype.fullTrace = function(fullTrace) {
 Mocha.prototype.growl = function() {
   this.options.growl = this.isGrowlCapable();
   if (!this.options.growl) {
-    var detail = process.browser
+    var detail = utils.isBrowser()
       ? 'notification support not available in this browser...'
       : 'notification support prerequisites not installed...';
     console.error(detail + ' cannot enable!');
@@ -1983,24 +2306,6 @@ Mocha.prototype.global = function(global) {
 // for backwards compability, 'globals' is an alias of 'global'
 Mocha.prototype.globals = Mocha.prototype.global;
 
-/**
- * Enables or disables TTY color output by screen-oriented reporters.
- *
- * @deprecated since v7.0.0
- * @public
- * @see {@link Mocha#color}
- * @param {boolean} colors - Whether to enable color output.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.useColors = function(colors) {
-  utils.deprecate('"useColors()" is DEPRECATED, please use "color()" instead.');
-  if (colors !== undefined) {
-    this.options.color = colors;
-  }
-  return this;
-};
-
 /**
  * Enables or disables TTY color output by screen-oriented reporters.
  *
@@ -2015,25 +2320,6 @@ Mocha.prototype.color = function(color) {
   return this;
 };
 
-/**
- * Determines if reporter should use inline diffs (rather than +/-)
- * in test failure output.
- *
- * @deprecated since v7.0.0
- * @public
- * @see {@link Mocha#inlineDiffs}
- * @param {boolean} [inlineDiffs=false] - Whether to use inline diffs.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.useInlineDiffs = function(inlineDiffs) {
-  utils.deprecate(
-    '"useInlineDiffs()" is DEPRECATED, please use "inlineDiffs()" instead.'
-  );
-  this.options.inlineDiffs = inlineDiffs !== undefined && inlineDiffs;
-  return this;
-};
-
 /**
  * Enables or disables reporter to use inline diffs (rather than +/-)
  * in test failure output.
@@ -2049,22 +2335,6 @@ Mocha.prototype.inlineDiffs = function(inlineDiffs) {
   return this;
 };
 
-/**
- * Determines if reporter should include diffs in test failure output.
- *
- * @deprecated since v7.0.0
- * @public
- * @see {@link Mocha#diff}
- * @param {boolean} [hideDiff=false] - Whether to hide diffs.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.hideDiff = function(hideDiff) {
-  utils.deprecate('"hideDiff()" is DEPRECATED, please use "diff()" instead.');
-  this.options.diff = !(hideDiff === true);
-  return this;
-};
-
 /**
  * Enables or disables reporter to include diff in test failure output.
  *
@@ -2090,7 +2360,6 @@ Mocha.prototype.diff = function(diff) {
  * @public
  * @see [CLI option](../#-timeout-ms-t-ms)
  * @see [Timeouts](../#timeouts)
- * @see {@link Mocha#enableTimeouts}
  * @param {number|string} msecs - Timeout threshold value.
  * @return {Mocha} this
  * @chainable
@@ -2149,22 +2418,6 @@ Mocha.prototype.slow = function(msecs) {
   return this;
 };
 
-/**
- * Enables or disables timeouts.
- *
- * @public
- * @see [CLI option](../#-timeout-ms-t-ms)
- * @param {boolean} enableTimeouts - Whether to enable timeouts.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.enableTimeouts = function(enableTimeouts) {
-  this.suite.enableTimeouts(
-    arguments.length && enableTimeouts !== undefined ? enableTimeouts : true
-  );
-  return this;
-};
-
 /**
  * Forces all tests to either accept a `done` callback or return a promise.
  *
@@ -2250,6 +2503,29 @@ Mocha.prototype.forbidPending = function(forbidPending) {
   return this;
 };
 
+/**
+ * Throws an error if mocha is in the wrong state to be able to transition to a "running" state.
+ * @private
+ */
+Mocha.prototype._guardRunningStateTransition = function() {
+  if (this._state === mochaStates.RUNNING) {
+    throw createMochaInstanceAlreadyRunningError(
+      'Mocha instance is currently running tests, cannot start a next test run until this one is done',
+      this
+    );
+  }
+  if (
+    this._state === mochaStates.DISPOSED ||
+    this._state === mochaStates.REFERENCES_CLEANED
+  ) {
+    throw createMochaInstanceAlreadyDisposedError(
+      'Mocha instance is already disposed, cannot start a new test run. Please create a new mocha instance. Be sure to set disable `cleanReferencesAfterRun` when you want to reuse the same mocha instance for multiple test runs.',
+      this._cleanReferencesAfterRun,
+      this
+    );
+  }
+};
+
 /**
  * Mocha version as specified by "package.json".
  *
@@ -2290,13 +2566,23 @@ Object.defineProperty(Mocha.prototype, 'version', {
  * mocha.run(failures => process.exitCode = failures ? 1 : 0);
  */
 Mocha.prototype.run = function(fn) {
-  if (this.files.length && !this.loadAsync) {
+  this._guardRunningStateTransition();
+  this._state = mochaStates.RUNNING;
+  if (this._previousRunner) {
+    this._previousRunner.dispose();
+    this.suite.reset();
+  }
+  if (this.files.length && !this._lazyLoadFiles) {
     this.loadFiles();
   }
+  var self = this;
   var suite = this.suite;
   var options = this.options;
   options.files = this.files;
-  var runner = new exports.Runner(suite, options.delay);
+  var runner = new this._runnerClass(suite, {
+    delay: options.delay,
+    cleanReferencesAfterRun: this._cleanReferencesAfterRun
+  });
   createStatsCollector(runner);
   var reporter = new this._reporter(runner, options);
   runner.checkLeaks = options.checkLeaks === true;
@@ -2321,6 +2607,12 @@ Mocha.prototype.run = function(fn) {
   exports.reporters.Base.hideDiff = !options.diff;
 
   function done(failures) {
+    self._previousRunner = runner;
+    if (self._cleanReferencesAfterRun) {
+      self._state = mochaStates.REFERENCES_CLEANED;
+    } else {
+      self._state = mochaStates.INIT;
+    }
     fn = fn || utils.noop;
     if (reporter.done) {
       reporter.done(failures, fn);
@@ -2329,15 +2621,116 @@ Mocha.prototype.run = function(fn) {
     }
   }
 
-  return runner.run(done);
+  return runner.run(done, {files: this.files, options: options});
 };
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../package.json":90,"./context":5,"./errors":6,"./esm-utils":42,"./growl":2,"./hook":7,"./interfaces":11,"./mocharc.json":15,"./reporters":21,"./runnable":33,"./runner":34,"./stats-collector":35,"./suite":36,"./test":37,"./utils":38,"_process":69,"escape-string-regexp":49,"path":42}],15:[function(require,module,exports){
+/**
+ * Assigns hooks to the root suite
+ * @param {MochaRootHookObject} [hooks] - Hooks to assign to root suite
+ * @chainable
+ */
+Mocha.prototype.rootHooks = function rootHooks(hooks) {
+  if (utils.type(hooks) === 'object') {
+    var beforeAll = [].concat(hooks.beforeAll || []);
+    var beforeEach = [].concat(hooks.beforeEach || []);
+    var afterAll = [].concat(hooks.afterAll || []);
+    var afterEach = [].concat(hooks.afterEach || []);
+    var rootSuite = this.suite;
+    beforeAll.forEach(function(hook) {
+      rootSuite.beforeAll(hook);
+    });
+    beforeEach.forEach(function(hook) {
+      rootSuite.beforeEach(hook);
+    });
+    afterAll.forEach(function(hook) {
+      rootSuite.afterAll(hook);
+    });
+    afterEach.forEach(function(hook) {
+      rootSuite.afterEach(hook);
+    });
+  }
+  return this;
+};
+
+/**
+ * Toggles parallel mode.
+ *
+ * Must be run before calling {@link Mocha#run}. Changes the `Runner` class to
+ * use; also enables lazy file loading if not already done so.
+ * @param {boolean} [enable] - If `true`, enable; otherwise disable.
+ * @throws If run in browser
+ * @throws If Mocha not in "INIT" state
+ * @returns {Mocha}
+ * @chainable
+ * @public
+ */
+Mocha.prototype.parallelMode = function parallelMode(enable) {
+  if (utils.isBrowser()) {
+    throw errors.createUnsupportedError(
+      'parallel mode is only supported in Node.js'
+    );
+  }
+  var parallel = enable === true;
+  if (
+    parallel === this.options.parallel &&
+    this._lazyLoadFiles &&
+    this._runnerClass !== exports.Runner
+  ) {
+    return this;
+  }
+  if (this._state !== mochaStates.INIT) {
+    throw errors.createUnsupportedError(
+      'cannot change parallel mode after having called run()'
+    );
+  }
+  this.options.parallel = parallel;
+
+  // swap Runner class
+  this._runnerClass = parallel
+    ? require('./nodejs/parallel-buffered-runner')
+    : exports.Runner;
+
+  // lazyLoadFiles may have been set `true` otherwise (for ESM loading),
+  // so keep `true` if so.
+  return this.lazyLoadFiles(this._lazyLoadFiles || parallel);
+};
+
+/**
+ * Disables implicit call to {@link Mocha#loadFiles} in {@link Mocha#run}. This
+ * setting is used by watch mode, parallel mode, and for loading ESM files.
+ * @todo This should throw if we've already loaded files; such behavior
+ * necessitates adding a new state.
+ * @param {boolean} [enable] - If `true`, disable eager loading of files in
+ * {@link Mocha#run}
+ * @chainable
+ * @public
+ */
+Mocha.prototype.lazyLoadFiles = function lazyLoadFiles(enable) {
+  this._lazyLoadFiles = enable === true;
+  debug('set lazy load to %s', enable);
+  return this;
+};
+
+/**
+ * An alternative way to define root hooks that works with parallel runs.
+ * @typedef {Object} MochaRootHookObject
+ * @property {Function|Function[]} [beforeAll] - "Before all" hook(s)
+ * @property {Function|Function[]} [beforeEach] - "Before each" hook(s)
+ * @property {Function|Function[]} [afterAll] - "After all" hook(s)
+ * @property {Function|Function[]} [afterEach] - "After each" hook(s)
+ */
+
+/**
+ * An function that returns a {@link MochaRootHookObject}, either sync or async.
+ * @callback MochaRootHookFunction
+ * @returns {MochaRootHookObject|Promise<MochaRootHookObject>}
+ */
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"../package.json":90,"./context":5,"./errors":6,"./esm-utils":42,"./hook":7,"./interfaces":11,"./mocharc.json":15,"./nodejs/growl":2,"./nodejs/parallel-buffered-runner":40,"./reporters":21,"./runnable":33,"./runner":34,"./stats-collector":35,"./suite":36,"./test":37,"./utils":38,"debug":45,"escape-string-regexp":49,"path":42}],15:[function(require,module,exports){
 module.exports={
   "diff": true,
   "extension": ["js", "cjs", "mjs"],
-  "opts": "./test/mocha.opts",
   "package": "./package.json",
   "reporter": "spec",
   "slow": 75,
@@ -2374,7 +2767,7 @@ var tty = require('tty');
 var diff = require('diff');
 var milliseconds = require('ms');
 var utils = require('../utils');
-var supportsColor = process.browser ? null : require('supports-color');
+var supportsColor = utils.isBrowser() ? null : require('supports-color');
 var constants = require('../runner').constants;
 var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
 var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
@@ -2401,7 +2794,7 @@ var consoleLog = console.log;
  */
 
 exports.useColors =
-  !process.browser &&
+  !utils.isBrowser() &&
   (supportsColor.stdout || process.env.MOCHA_COLORS !== undefined);
 
 /**
@@ -2887,7 +3280,7 @@ Base.consoleLog = consoleLog;
 Base.abstract = true;
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"_process":69,"diff":48,"ms":60,"supports-color":42,"tty":4}],18:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"_process":67,"diff":48,"ms":58,"supports-color":42,"tty":4}],18:[function(require,module,exports){
 'use strict';
 /**
  * @module Doc
@@ -2952,6 +3345,7 @@ function Doc(runner, options) {
 
   runner.on(EVENT_TEST_PASS, function(test) {
     Base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
+    Base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.file));
     var code = utils.escape(utils.clean(test.body));
     Base.consoleLog('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
   });
@@ -2962,6 +3356,11 @@ function Doc(runner, options) {
       indent(),
       utils.escape(test.title)
     );
+    Base.consoleLog(
+      '%s  <dt class="error">%s</dt>',
+      indent(),
+      utils.escape(test.file)
+    );
     var code = utils.escape(utils.clean(test.body));
     Base.consoleLog(
       '%s  <dd class="error"><pre><code>%s</code></pre></dd>',
@@ -3063,7 +3462,7 @@ inherits(Dot, Base);
 Dot.description = 'dot matrix representation';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69}],20:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67}],20:[function(require,module,exports){
 (function (global){
 'use strict';
 
@@ -3564,6 +3963,7 @@ function clean(test) {
   return {
     title: test.title,
     fullTitle: test.fullTitle(),
+    file: test.file,
     duration: test.duration,
     currentRetry: test.currentRetry()
   };
@@ -3572,7 +3972,7 @@ function clean(test) {
 JSONStream.description = 'newline delimited JSON events';
 
 }).call(this,require('_process'))
-},{"../runner":34,"./base":17,"_process":69}],23:[function(require,module,exports){
+},{"../runner":34,"./base":17,"_process":67}],23:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -3663,6 +4063,7 @@ function clean(test) {
   return {
     title: test.title,
     fullTitle: test.fullTitle(),
+    file: test.file,
     duration: test.duration,
     currentRetry: test.currentRetry(),
     err: cleanCycles(err)
@@ -3711,7 +4112,7 @@ function errorJSON(err) {
 JSONReporter.description = 'single JSON object';
 
 }).call(this,require('_process'))
-},{"../runner":34,"./base":17,"_process":69}],24:[function(require,module,exports){
+},{"../runner":34,"./base":17,"_process":67}],24:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -3771,11 +4172,12 @@ function Landing(runner, options) {
 
   var self = this;
   var width = (Base.window.width * 0.75) | 0;
-  var total = runner.total;
   var stream = process.stdout;
+
   var plane = color('plane', '✈');
   var crashed = -1;
   var n = 0;
+  var total = 0;
 
   function runway() {
     var buf = Array(width).join('-');
@@ -3789,8 +4191,7 @@ function Landing(runner, options) {
 
   runner.on(EVENT_TEST_END, function(test) {
     // check if the plane crashed
-    var col = crashed === -1 ? ((width * ++n) / total) | 0 : crashed;
-
+    var col = crashed === -1 ? ((width * ++n) / ++total) | 0 : crashed;
     // show the crash
     if (test.state === STATE_FAILED) {
       plane = color('plane crash', '✈');
@@ -3813,6 +4214,14 @@ function Landing(runner, options) {
     process.stdout.write('\n');
     self.epilogue();
   });
+
+  // if cursor is hidden when we ctrl-C, then it will remain hidden unless...
+  process.once('SIGINT', function() {
+    cursor.show();
+    process.nextTick(function() {
+      process.kill(process.pid, 'SIGINT');
+    });
+  });
 }
 
 /**
@@ -3823,7 +4232,7 @@ inherits(Landing, Base);
 Landing.description = 'Unicode landing strip';
 
 }).call(this,require('_process'))
-},{"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":69}],25:[function(require,module,exports){
+},{"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":67}],25:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -3905,7 +4314,7 @@ inherits(List, Base);
 List.description = 'like "spec" reporter but flat';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69}],26:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67}],26:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -4021,7 +4430,7 @@ function Markdown(runner, options) {
 Markdown.description = 'GitHub Flavored Markdown';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69}],27:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67}],27:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -4077,7 +4486,7 @@ inherits(Min, Base);
 Min.description = 'essentially just a summary';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69}],28:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67}],28:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -4357,7 +4766,7 @@ function write(string) {
 NyanCat.description = '"nyan cat"';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69}],29:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67}],29:[function(require,module,exports){
 (function (process){
 'use strict';
 /**
@@ -4465,7 +4874,7 @@ inherits(Progress, Base);
 Progress.description = 'a progress bar';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69}],30:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67}],30:[function(require,module,exports){
 'use strict';
 /**
  * @module Spec
@@ -4620,9 +5029,7 @@ function TAP(runner, options) {
   this._producer = createProducer(tapVersion);
 
   runner.once(EVENT_RUN_BEGIN, function() {
-    var ntests = runner.grepTotal(runner.suite);
     self._producer.writeVersion();
-    self._producer.writePlan(ntests);
   });
 
   runner.on(EVENT_TEST_END, function() {
@@ -4774,6 +5181,7 @@ TAPProducer.prototype.writeEpilogue = function(stats) {
   println('# pass ' + stats.passes);
   // :TBD: Why are we not showing pending results?
   println('# fail ' + stats.failures);
+  this.writePlan(stats.passes + stats.failures + stats.pending);
 };
 
 /**
@@ -4864,7 +5272,7 @@ inherits(TAP13Producer, TAPProducer);
 TAP.description = 'TAP-compatible output';
 
 }).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":69,"util":89}],32:[function(require,module,exports){
+},{"../runner":34,"../utils":38,"./base":17,"_process":67,"util":89}],32:[function(require,module,exports){
 (function (process,global){
 'use strict';
 /**
@@ -4877,7 +5285,6 @@ TAP.description = 'TAP-compatible output';
 var Base = require('./base');
 var utils = require('../utils');
 var fs = require('fs');
-var mkdirp = require('mkdirp');
 var path = require('path');
 var errors = require('../errors');
 var createUnsupportedError = errors.createUnsupportedError;
@@ -4930,7 +5337,9 @@ function XUnit(runner, options) {
         throw createUnsupportedError('file output not supported in browser');
       }
 
-      mkdirp.sync(path.dirname(options.reporterOptions.output));
+      fs.mkdirSync(path.dirname(options.reporterOptions.output), {
+        recursive: true
+      });
       self.fileStream = fs.createWriteStream(options.reporterOptions.output);
     }
 
@@ -5084,7 +5493,7 @@ function tag(name, attrs, close, content) {
 XUnit.description = 'XUnit-compatible XML output';
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../errors":6,"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":69,"fs":42,"mkdirp":59,"path":42}],33:[function(require,module,exports){
+},{"../errors":6,"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":67,"fs":42,"path":42}],33:[function(require,module,exports){
 (function (global){
 'use strict';
 
@@ -5093,8 +5502,9 @@ var Pending = require('./pending');
 var debug = require('debug')('mocha:runnable');
 var milliseconds = require('ms');
 var utils = require('./utils');
-var createInvalidExceptionError = require('./errors')
-  .createInvalidExceptionError;
+var errors = require('./errors');
+var createInvalidExceptionError = errors.createInvalidExceptionError;
+var createMultipleDoneError = errors.createMultipleDoneError;
 
 /**
  * Save timer references to avoid Sinon interfering (see GH-237).
@@ -5123,11 +5533,8 @@ function Runnable(title, fn) {
   this.sync = !this.async;
   this._timeout = 2000;
   this._slow = 75;
-  this._enableTimeouts = true;
-  this.timedOut = false;
   this._retries = -1;
-  this._currentRetry = 0;
-  this.pending = false;
+  this.reset();
 }
 
 /**
@@ -5135,6 +5542,17 @@ function Runnable(title, fn) {
  */
 utils.inherits(Runnable, EventEmitter);
 
+/**
+ * Resets the state initially or for a next run.
+ */
+Runnable.prototype.reset = function() {
+  this.timedOut = false;
+  this._currentRetry = 0;
+  this.pending = false;
+  delete this.state;
+  delete this.err;
+};
+
 /**
  * Get current timeout value in msecs.
  *
@@ -5171,10 +5589,12 @@ Runnable.prototype.timeout = function(ms) {
 
   // see #1652 for reasoning
   if (ms === range[0] || ms === range[1]) {
-    this._enableTimeouts = false;
+    this._timeout = 0;
+  } else {
+    this._timeout = ms;
   }
-  debug('timeout %d', ms);
-  this._timeout = ms;
+  debug('timeout %d', this._timeout);
+
   if (this.timer) {
     this.resetTimeout();
   }
@@ -5200,22 +5620,6 @@ Runnable.prototype.slow = function(ms) {
   return this;
 };
 
-/**
- * Set and get whether timeout is `enabled`.
- *
- * @private
- * @param {boolean} enabled
- * @return {Runnable|boolean} enabled or Runnable instance.
- */
-Runnable.prototype.enableTimeouts = function(enabled) {
-  if (!arguments.length) {
-    return this._enableTimeouts;
-  }
-  debug('enableTimeouts %s', enabled);
-  this._enableTimeouts = enabled;
-  return this;
-};
-
 /**
  * Halt and mark as pending.
  *
@@ -5310,31 +5714,6 @@ Runnable.prototype.clearTimeout = function() {
   clearTimeout(this.timer);
 };
 
-/**
- * Inspect the runnable void of private properties.
- *
- * @private
- * @return {string}
- */
-Runnable.prototype.inspect = function() {
-  return JSON.stringify(
-    this,
-    function(key, val) {
-      if (key[0] === '_') {
-        return;
-      }
-      if (key === 'parent') {
-        return '#<Suite>';
-      }
-      if (key === 'ctx') {
-        return '#<Context>';
-      }
-      return val;
-    },
-    2
-  );
-};
-
 /**
  * Reset the timeout.
  *
@@ -5342,14 +5721,14 @@ Runnable.prototype.inspect = function() {
  */
 Runnable.prototype.resetTimeout = function() {
   var self = this;
-  var ms = this.timeout() || 1e9;
+  var ms = this.timeout();
 
-  if (!this._enableTimeouts) {
+  if (ms === 0) {
     return;
   }
   this.clearTimeout();
   this.timer = setTimeout(function() {
-    if (!self._enableTimeouts) {
+    if (self.timeout() === 0) {
       return;
     }
     self.callback(self._timeoutError(ms));
@@ -5381,7 +5760,9 @@ Runnable.prototype.run = function(fn) {
   var start = new Date();
   var ctx = this.ctx;
   var finished;
-  var emitted;
+  var errorWasHandled = false;
+
+  if (this.isPending()) return fn();
 
   // Sometimes the ctx exists, but it is not runnable
   if (ctx && ctx.runnable) {
@@ -5390,17 +5771,11 @@ Runnable.prototype.run = function(fn) {
 
   // called multiple times
   function multiple(err) {
-    if (emitted) {
+    if (errorWasHandled) {
       return;
     }
-    emitted = true;
-    var msg = 'done() called multiple times';
-    if (err && err.message) {
-      err.message += " (and Mocha's " + msg + ')';
-      self.emit('error', err);
-    } else {
-      self.emit('error', new Error(msg));
-    }
+    errorWasHandled = true;
+    self.emit('error', createMultipleDoneError(self, err));
   }
 
   // finished
@@ -5417,7 +5792,7 @@ Runnable.prototype.run = function(fn) {
     self.clearTimeout();
     self.duration = new Date() - start;
     finished = true;
-    if (!err && self.duration > ms && self._enableTimeouts) {
+    if (!err && self.duration > ms && ms > 0) {
       err = self._timeoutError(ms);
     }
     fn(err);
@@ -5451,7 +5826,7 @@ Runnable.prototype.run = function(fn) {
       callFnAsync(this.fn);
     } catch (err) {
       // handles async runnables which actually run synchronously
-      emitted = true;
+      errorWasHandled = true;
       if (err instanceof Pending) {
         return; // done() is already called in this.skip()
       } else if (this.allowUncaught) {
@@ -5464,13 +5839,9 @@ Runnable.prototype.run = function(fn) {
 
   // sync or promise-returning
   try {
-    if (this.isPending()) {
-      done();
-    } else {
-      callFn(this.fn);
-    }
+    callFn(this.fn);
   } catch (err) {
-    emitted = true;
+    errorWasHandled = true;
     if (err instanceof Pending) {
       return done();
     } else if (this.allowUncaught) {
@@ -5569,7 +5940,11 @@ var constants = utils.defineConstants(
     /**
      * Value of `state` prop when a `Runnable` has passed
      */
-    STATE_PASSED: 'passed'
+    STATE_PASSED: 'passed',
+    /**
+     * Value of `state` prop when a `Runnable` has been skipped by user
+     */
+    STATE_PENDING: 'pending'
   }
 );
 
@@ -5592,7 +5967,7 @@ Runnable.toValueOrError = function(value) {
 Runnable.constants = constants;
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./errors":6,"./pending":16,"./utils":38,"debug":45,"events":50,"ms":60}],34:[function(require,module,exports){
+},{"./errors":6,"./pending":16,"./utils":38,"debug":45,"events":50,"ms":58}],34:[function(require,module,exports){
 (function (process,global){
 'use strict';
 
@@ -5614,8 +5989,8 @@ var HOOK_TYPE_BEFORE_ALL = Suite.constants.HOOK_TYPE_BEFORE_ALL;
 var EVENT_ROOT_SUITE_RUN = Suite.constants.EVENT_ROOT_SUITE_RUN;
 var STATE_FAILED = Runnable.constants.STATE_FAILED;
 var STATE_PASSED = Runnable.constants.STATE_PASSED;
+var STATE_PENDING = Runnable.constants.STATE_PENDING;
 var dQuote = utils.dQuote;
-var ngettext = utils.ngettext;
 var sQuote = utils.sQuote;
 var stackFilter = utils.stackTraceFilter();
 var stringify = utils.stringify;
@@ -5623,6 +5998,7 @@ var type = utils.type;
 var errors = require('./errors');
 var createInvalidExceptionError = errors.createInvalidExceptionError;
 var createUnsupportedError = errors.createUnsupportedError;
+var createFatalError = errors.createFatalError;
 
 /**
  * Non-enumerable globals.
@@ -5705,7 +6081,19 @@ var constants = utils.defineConstants(
     /**
      * Emitted when {@link Test} execution has failed, but will retry
      */
-    EVENT_TEST_RETRY: 'retry'
+    EVENT_TEST_RETRY: 'retry',
+    /**
+     * Initial state of Runner
+     */
+    STATE_IDLE: 'idle',
+    /**
+     * State set to this value when the Runner has started running
+     */
+    STATE_RUNNING: 'running',
+    /**
+     * State set to this value when the Runner has stopped
+     */
+    STATE_STOPPED: 'stopped'
   }
 );
 
@@ -5717,21 +6105,32 @@ module.exports = Runner;
  * @extends external:EventEmitter
  * @public
  * @class
- * @param {Suite} suite Root suite
- * @param {boolean} [delay] Whether or not to delay execution of root suite
- * until ready.
- */
-function Runner(suite, delay) {
+ * @param {Suite} suite - Root suite
+ * @param {Object|boolean} [opts] - Options. If `boolean`, whether or not to delay execution of root suite until ready (for backwards compatibility).
+ * @param {boolean} [opts.delay] - Whether to delay execution of root suite until ready.
+ * @param {boolean} [opts.cleanReferencesAfterRun] - Whether to clean references to test fns and hooks when a suite is done.
+ */
+function Runner(suite, opts) {
+  if (opts === undefined) {
+    opts = {};
+  }
+  if (typeof opts === 'boolean') {
+    this._delay = opts;
+    opts = {};
+  } else {
+    this._delay = opts.delay;
+  }
   var self = this;
   this._globals = [];
   this._abort = false;
-  this._delay = delay;
   this.suite = suite;
-  this.started = false;
+  this._opts = opts;
+  this.state = constants.STATE_IDLE;
   this.total = suite.total();
   this.failures = 0;
+  this._eventListeners = [];
   this.on(constants.EVENT_TEST_END, function(test) {
-    if (test.retriedTest() && test.parent) {
+    if (test.type === 'test' && test.retriedTest() && test.parent) {
       var idx =
         test.parent.tests && test.parent.tests.indexOf(test.retriedTest());
       if (idx > -1) test.parent.tests[idx] = test;
@@ -5744,6 +6143,8 @@ function Runner(suite, delay) {
   this._defaultGrep = /.*/;
   this.grep(this._defaultGrep);
   this.globals(this.globalProps());
+
+  this.uncaught = this._uncaught.bind(this);
 }
 
 /**
@@ -5759,6 +6160,58 @@ Runner.immediately = global.setImmediate || process.nextTick;
  */
 inherits(Runner, EventEmitter);
 
+/**
+ * Replacement for `target.on(eventName, listener)` that does bookkeeping to remove them when this runner instance is disposed.
+ * @param {EventEmitter} target - The `EventEmitter`
+ * @param {string} eventName - The event name
+ * @param {string} fn - Listener function
+ * @private
+ */
+Runner.prototype._addEventListener = function(target, eventName, listener) {
+  target.on(eventName, listener);
+  this._eventListeners.push([target, eventName, listener]);
+};
+
+/**
+ * Replacement for `target.removeListener(eventName, listener)` that also updates the bookkeeping.
+ * @param {EventEmitter} target - The `EventEmitter`
+ * @param {string} eventName - The event anme
+ * @param {function} listener - Listener function
+ * @private
+ */
+Runner.prototype._removeEventListener = function(target, eventName, listener) {
+  var eventListenerIndex = -1;
+  for (var i = 0; i < this._eventListeners.length; i++) {
+    var eventListenerDescriptor = this._eventListeners[i];
+    if (
+      eventListenerDescriptor[0] === target &&
+      eventListenerDescriptor[1] === eventName &&
+      eventListenerDescriptor[2] === listener
+    ) {
+      eventListenerIndex = i;
+      break;
+    }
+  }
+  if (eventListenerIndex !== -1) {
+    var removedListener = this._eventListeners.splice(eventListenerIndex, 1)[0];
+    removedListener[0].removeListener(removedListener[1], removedListener[2]);
+  }
+};
+
+/**
+ * Removes all event handlers set during a run on this instance.
+ * Remark: this does _not_ clean/dispose the tests or suites themselves.
+ */
+Runner.prototype.dispose = function() {
+  this.removeAllListeners();
+  this._eventListeners.forEach(function(eventListenerDescriptor) {
+    eventListenerDescriptor[0].removeListener(
+      eventListenerDescriptor[1],
+      eventListenerDescriptor[2]
+    );
+  });
+};
+
 /**
  * Run tests with full titles matching `re`. Updates runner.total
  * with number of tests matched.
@@ -5770,7 +6223,7 @@ inherits(Runner, EventEmitter);
  * @return {Runner} Runner instance.
  */
 Runner.prototype.grep = function(re, invert) {
-  debug('grep %s', re);
+  debug('grep(): setting to %s', re);
   this._grep = re;
   this._invert = invert;
   this.total = this.grepTotal(this.suite);
@@ -5835,7 +6288,7 @@ Runner.prototype.globals = function(arr) {
   if (!arguments.length) {
     return this._globals;
   }
-  debug('globals %j', arr);
+  debug('globals(): setting to %O', arr);
   this._globals = this._globals.concat(arr);
   return this;
 };
@@ -5867,12 +6320,8 @@ Runner.prototype.checkGlobals = function(test) {
   this._globals = this._globals.concat(leaks);
 
   if (leaks.length) {
-    var format = ngettext(
-      leaks.length,
-      'global leak detected: %s',
-      'global leaks detected: %s'
-    );
-    var error = new Error(util.format(format, leaks.map(sQuote).join(', ')));
+    var msg = 'global leak(s) detected: %s';
+    var error = new Error(util.format(msg, leaks.map(sQuote).join(', ')));
     this.fail(test, error);
   }
 };
@@ -5881,15 +6330,27 @@ Runner.prototype.checkGlobals = function(test) {
  * Fail the given `test`.
  *
  * @private
- * @param {Test} test
+ * @param {Runnable} test
  * @param {Error} err
+ * @param {boolean} [force=false] - Whether to fail a pending test.
  */
-Runner.prototype.fail = function(test, err) {
-  if (test.isPending()) {
+Runner.prototype.fail = function(test, err, force) {
+  force = force === true;
+  if (test.isPending() && !force) {
     return;
   }
+  if (this.state === constants.STATE_STOPPED) {
+    if (err.code === errors.constants.MULTIPLE_DONE) {
+      throw err;
+    }
+    throw createFatalError(
+      'Test failed after root suite execution completed!',
+      err
+    );
+  }
 
   ++this.failures;
+  debug('total number of failures: %d', this.failures);
   test.state = STATE_FAILED;
 
   if (!isError(err)) {
@@ -5977,12 +6438,12 @@ Runner.prototype.hook = function(name, fn) {
     self.emit(constants.EVENT_HOOK_BEGIN, hook);
 
     if (!hook.listeners('error').length) {
-      hook.on('error', function(err) {
+      self._addEventListener(hook, 'error', function(err) {
         self.failHook(hook, err);
       });
     }
 
-    hook.run(function(err) {
+    hook.run(function cbHookRun(err) {
       var testError = hook.error();
       if (testError) {
         self.fail(self.test, testError);
@@ -6008,6 +6469,7 @@ Runner.prototype.hook = function(name, fn) {
           suite.suites.forEach(function(suite) {
             suite.pending = true;
           });
+          hooks = [];
         } else {
           hook.pending = false;
           var errForbid = createUnsupportedError('`this.skip` forbidden');
@@ -6120,18 +6582,10 @@ Runner.prototype.runTest = function(fn) {
     return;
   }
 
-  var suite = this.parents().reverse()[0] || this.suite;
-  if (this.forbidOnly && suite.hasOnly()) {
-    fn(new Error('`.only` forbidden'));
-    return;
-  }
   if (this.asyncOnly) {
     test.asyncOnly = true;
   }
-  test.on('error', function(err) {
-    if (err instanceof Pending) {
-      return;
-    }
+  this._addEventListener(test, 'error', function(err) {
     self.fail(test, err);
   });
   if (this.allowUncaught) {
@@ -6230,10 +6684,9 @@ Runner.prototype.runTests = function(suite, fn) {
     // static skip, no hooks are executed
     if (test.isPending()) {
       if (self.forbidPending) {
-        test.isPending = alwaysFalse;
-        self.fail(test, new Error('Pending test forbidden'));
-        delete test.isPending;
+        self.fail(test, new Error('Pending test forbidden'), true);
       } else {
+        test.state = STATE_PENDING;
         self.emit(constants.EVENT_TEST_PENDING, test);
       }
       self.emit(constants.EVENT_TEST_END, test);
@@ -6246,10 +6699,9 @@ Runner.prototype.runTests = function(suite, fn) {
       // conditional skip within beforeEach
       if (test.isPending()) {
         if (self.forbidPending) {
-          test.isPending = alwaysFalse;
-          self.fail(test, new Error('Pending test forbidden'));
-          delete test.isPending;
+          self.fail(test, new Error('Pending test forbidden'), true);
         } else {
+          test.state = STATE_PENDING;
           self.emit(constants.EVENT_TEST_PENDING, test);
         }
         self.emit(constants.EVENT_TEST_END, test);
@@ -6270,10 +6722,9 @@ Runner.prototype.runTests = function(suite, fn) {
         // conditional skip within it
         if (test.pending) {
           if (self.forbidPending) {
-            test.isPending = alwaysFalse;
-            self.fail(test, new Error('Pending test forbidden'));
-            delete test.isPending;
+            self.fail(test, new Error('Pending test forbidden'), true);
           } else {
+            test.state = STATE_PENDING;
             self.emit(constants.EVENT_TEST_PENDING, test);
           }
           self.emit(constants.EVENT_TEST_END, test);
@@ -6310,10 +6761,6 @@ Runner.prototype.runTests = function(suite, fn) {
   next();
 };
 
-function alwaysFalse() {
-  return false;
-}
-
 /**
  * Run the given `suite` and invoke the callback `fn()` when complete.
  *
@@ -6326,9 +6773,10 @@ Runner.prototype.runSuite = function(suite, fn) {
   var self = this;
   var total = this.grepTotal(suite);
 
-  debug('run suite %s', suite.fullTitle());
+  debug('runSuite(): running %s', suite.fullTitle());
 
   if (!total || (self.failures && suite._bail)) {
+    debug('runSuite(): bailing');
     return fn();
   }
 
@@ -6394,22 +6842,49 @@ Runner.prototype.runSuite = function(suite, fn) {
 /**
  * Handle uncaught exceptions within runner.
  *
- * @param {Error} err
+ * This function is bound to the instance as `Runner#uncaught` at instantiation
+ * time. It's intended to be listening on the `Process.uncaughtException` event.
+ * In order to not leak EE listeners, we need to ensure no more than a single
+ * `uncaughtException` listener exists per `Runner`.  The only way to do
+ * this--because this function needs the context (and we don't have lambdas)--is
+ * to use `Function.prototype.bind`. We need strict equality to unregister and
+ * _only_ unregister the _one_ listener we set from the
+ * `Process.uncaughtException` event; would be poor form to just remove
+ * everything. See {@link Runner#run} for where the event listener is registered
+ * and unregistered.
+ * @param {Error} err - Some uncaught error
  * @private
  */
-Runner.prototype.uncaught = function(err) {
+Runner.prototype._uncaught = function(err) {
+  // this is defensive to prevent future developers from mis-calling this function.
+  // it's more likely that it'd be called with the incorrect context--say, the global
+  // `process` object--than it would to be called with a context that is not a "subclass"
+  // of `Runner`.
+  if (!(this instanceof Runner)) {
+    throw createFatalError(
+      'Runner#uncaught() called with invalid context',
+      this
+    );
+  }
   if (err instanceof Pending) {
+    debug('uncaught(): caught a Pending');
     return;
   }
   // browser does not exit script when throwing in global.onerror()
-  if (this.allowUncaught && !process.browser) {
+  if (this.allowUncaught && !utils.isBrowser()) {
+    debug('uncaught(): bubbling exception due to --allow-uncaught');
+    throw err;
+  }
+
+  if (this.state === constants.STATE_STOPPED) {
+    debug('uncaught(): throwing after run has completed!');
     throw err;
   }
 
   if (err) {
-    debug('uncaught exception %O', err);
+    debug('uncaught(): got truthy exception %O', err);
   } else {
-    debug('uncaught undefined/falsy exception');
+    debug('uncaught(): undefined/falsy exception');
     err = createInvalidExceptionError(
       'Caught falsy/undefined exception which would otherwise be uncaught. No stack trace found; try a debugger',
       err
@@ -6418,6 +6893,7 @@ Runner.prototype.uncaught = function(err) {
 
   if (!isError(err)) {
     err = thrown2Error(err);
+    debug('uncaught(): converted "error" %o to Error', err);
   }
   err.uncaught = true;
 
@@ -6425,12 +6901,15 @@ Runner.prototype.uncaught = function(err) {
 
   if (!runnable) {
     runnable = new Runnable('Uncaught error outside test suite');
+    debug('uncaught(): no current Runnable; created a phony one');
     runnable.parent = this.suite;
 
-    if (this.started) {
+    if (this.state === constants.STATE_RUNNING) {
+      debug('uncaught(): failing gracefully');
       this.fail(runnable, err);
     } else {
       // Can't recover from this failure
+      debug('uncaught(): test run has not yet started; unrecoverable');
       this.emit(constants.EVENT_RUN_BEGIN);
       this.fail(runnable, err);
       this.emit(constants.EVENT_RUN_END);
@@ -6442,98 +6921,94 @@ Runner.prototype.uncaught = function(err) {
   runnable.clearTimeout();
 
   if (runnable.isFailed()) {
+    debug('uncaught(): Runnable has already failed');
     // Ignore error if already failed
     return;
   } else if (runnable.isPending()) {
+    debug('uncaught(): pending Runnable wound up failing!');
     // report 'pending test' retrospectively as failed
-    runnable.isPending = alwaysFalse;
-    this.fail(runnable, err);
-    delete runnable.isPending;
+    this.fail(runnable, err, true);
     return;
   }
 
   // we cannot recover gracefully if a Runnable has already passed
   // then fails asynchronously
   if (runnable.isPassed()) {
+    debug('uncaught(): Runnable has already passed; bailing gracefully');
     this.fail(runnable, err);
     this.abort();
   } else {
-    debug(runnable);
+    debug('uncaught(): forcing Runnable to complete with Error');
     return runnable.callback(err);
   }
 };
 
-/**
- * Handle uncaught exceptions after runner's end event.
- *
- * @param {Error} err
- * @private
- */
-Runner.prototype.uncaughtEnd = function uncaughtEnd(err) {
-  if (err instanceof Pending) return;
-  throw err;
-};
-
 /**
  * Run the root suite and invoke `fn(failures)`
  * on completion.
  *
  * @public
  * @memberof Runner
- * @param {Function} fn
+ * @param {Function} fn - Callback when finished
+ * @param {{files: string[], options: Options}} [opts] - For subclasses
  * @return {Runner} Runner instance.
  */
-Runner.prototype.run = function(fn) {
+Runner.prototype.run = function(fn, opts) {
   var self = this;
   var rootSuite = this.suite;
 
   fn = fn || function() {};
 
-  function uncaught(err) {
-    self.uncaught(err);
-  }
-
   function start() {
+    debug('run(): starting');
     // If there is an `only` filter
     if (rootSuite.hasOnly()) {
       rootSuite.filterOnly();
+      debug('run(): filtered exclusive Runnables');
     }
-    self.started = true;
+    self.state = constants.STATE_RUNNING;
     if (self._delay) {
       self.emit(constants.EVENT_DELAY_END);
+      debug('run(): "delay" ended');
     }
+    debug('run(): emitting %s', constants.EVENT_RUN_BEGIN);
     self.emit(constants.EVENT_RUN_BEGIN);
+    debug('run(): emitted %s', constants.EVENT_RUN_BEGIN);
 
     self.runSuite(rootSuite, function() {
-      debug('finished running');
+      debug(
+        'run(): root suite completed; emitting %s',
+        constants.EVENT_RUN_END
+      );
       self.emit(constants.EVENT_RUN_END);
+      debug('run(): emitted %s', constants.EVENT_RUN_END);
     });
   }
 
-  debug(constants.EVENT_RUN_BEGIN);
-
   // references cleanup to avoid memory leaks
-  this.on(constants.EVENT_SUITE_END, function(suite) {
-    suite.cleanReferences();
-  });
+  if (this._opts.cleanReferencesAfterRun) {
+    this.on(constants.EVENT_SUITE_END, function(suite) {
+      suite.cleanReferences();
+    });
+  }
 
   // callback
   this.on(constants.EVENT_RUN_END, function() {
+    self.state = constants.STATE_STOPPED;
     debug(constants.EVENT_RUN_END);
-    process.removeListener('uncaughtException', uncaught);
-    process.on('uncaughtException', self.uncaughtEnd);
+    debug('run(): emitted %s', constants.EVENT_RUN_END);
     fn(self.failures);
   });
 
-  // uncaught exception
-  process.removeListener('uncaughtException', self.uncaughtEnd);
-  process.on('uncaughtException', uncaught);
+  self._removeEventListener(process, 'uncaughtException', self.uncaught);
+  self._addEventListener(process, 'uncaughtException', self.uncaught);
 
   if (this._delay) {
     // for reporters, I guess.
     // might be nice to debounce some dots while we wait.
     this.emit(constants.EVENT_DELAY_BEGIN, rootSuite);
     rootSuite.once(EVENT_ROOT_SUITE_RUN, start);
+    debug('run(): waiting for green light due to --delay');
   } else {
     Runner.immediately(function() {
       start();
@@ -6551,7 +7026,7 @@ Runner.prototype.run = function(fn) {
  * @return {Runner} Runner instance.
  */
 Runner.prototype.abort = function() {
-  debug('aborting');
+  debug('abort(): aborting');
   this._abort = true;
 
   return this;
@@ -6635,7 +7110,7 @@ Runner.constants = constants;
  */
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./errors":6,"./pending":16,"./runnable":33,"./suite":36,"./utils":38,"_process":69,"debug":45,"events":50,"util":89}],35:[function(require,module,exports){
+},{"./errors":6,"./pending":16,"./runnable":33,"./suite":36,"./utils":38,"_process":67,"debug":45,"events":50,"util":89}],35:[function(require,module,exports){
 (function (global){
 'use strict';
 
@@ -6786,20 +7261,19 @@ function Suite(title, parentContext, isRoot) {
   this.ctx = new Context();
   this.suites = [];
   this.tests = [];
+  this.root = isRoot === true;
   this.pending = false;
+  this._retries = -1;
   this._beforeEach = [];
   this._beforeAll = [];
   this._afterEach = [];
   this._afterAll = [];
-  this.root = isRoot === true;
   this._timeout = 2000;
-  this._enableTimeouts = true;
   this._slow = 75;
   this._bail = false;
-  this._retries = -1;
   this._onlyTests = [];
   this._onlySuites = [];
-  this.delayed = false;
+  this.reset();
 
   this.on('newListener', function(event) {
     if (deprecatedEvents[event]) {
@@ -6817,6 +7291,22 @@ function Suite(title, parentContext, isRoot) {
  */
 inherits(Suite, EventEmitter);
 
+/**
+ * Resets the state initially or for a next run.
+ */
+Suite.prototype.reset = function() {
+  this.delayed = false;
+  function doReset(thingToReset) {
+    thingToReset.reset();
+  }
+  this.suites.forEach(doReset);
+  this.tests.forEach(doReset);
+  this._beforeEach.forEach(doReset);
+  this._afterEach.forEach(doReset);
+  this._beforeAll.forEach(doReset);
+  this._afterAll.forEach(doReset);
+};
+
 /**
  * Return a clone of this `Suite`.
  *
@@ -6830,7 +7320,6 @@ Suite.prototype.clone = function() {
   suite.root = this.root;
   suite.timeout(this.timeout());
   suite.retries(this.retries());
-  suite.enableTimeouts(this.enableTimeouts());
   suite.slow(this.slow());
   suite.bail(this.bail());
   return suite;
@@ -6848,12 +7337,15 @@ Suite.prototype.timeout = function(ms) {
   if (!arguments.length) {
     return this._timeout;
   }
-  if (ms.toString() === '0') {
-    this._enableTimeouts = false;
-  }
   if (typeof ms === 'string') {
     ms = milliseconds(ms);
   }
+
+  // Clamp to range
+  var INT_MAX = Math.pow(2, 31) - 1;
+  var range = [0, INT_MAX];
+  ms = utils.clamp(ms, range);
+
   debug('timeout %d', ms);
   this._timeout = parseInt(ms, 10);
   return this;
@@ -6875,22 +7367,6 @@ Suite.prototype.retries = function(n) {
   return this;
 };
 
-/**
- * Set or get timeout to `enabled`.
- *
- * @private
- * @param {boolean} enabled
- * @return {Suite|boolean} self or enabled
- */
-Suite.prototype.enableTimeouts = function(enabled) {
-  if (!arguments.length) {
-    return this._enableTimeouts;
-  }
-  debug('enableTimeouts %s', enabled);
-  this._enableTimeouts = enabled;
-  return this;
-};
-
 /**
  * Set or get slow `ms` or short-hand such as "2s".
  *
@@ -6947,7 +7423,6 @@ Suite.prototype._createHook = function(title, fn) {
   hook.parent = this;
   hook.timeout(this.timeout());
   hook.retries(this.retries());
-  hook.enableTimeouts(this.enableTimeouts());
   hook.slow(this.slow());
   hook.ctx = this.ctx;
   hook.file = this.file;
@@ -7062,7 +7537,6 @@ Suite.prototype.addSuite = function(suite) {
   suite.root = false;
   suite.timeout(this.timeout());
   suite.retries(this.retries());
-  suite.enableTimeouts(this.enableTimeouts());
   suite.slow(this.slow());
   suite.bail(this.bail());
   this.suites.push(suite);
@@ -7081,7 +7555,6 @@ Suite.prototype.addTest = function(test) {
   test.parent = this;
   test.timeout(this.timeout());
   test.retries(this.retries());
-  test.enableTimeouts(this.enableTimeouts());
   test.slow(this.slow());
   test.ctx = this.ctx;
   this.tests.push(test);
@@ -7218,6 +7691,15 @@ Suite.prototype.appendOnlySuite = function(suite) {
   this._onlySuites.push(suite);
 };
 
+/**
+ * Marks a suite to be `only`.
+ *
+ * @private
+ */
+Suite.prototype.markOnly = function() {
+  this.parent && this.parent.appendOnlySuite(this);
+};
+
 /**
  * Adds a test to the list of tests marked `only`.
  *
@@ -7236,6 +7718,16 @@ Suite.prototype.getHooks = function getHooks(name) {
   return this['_' + name];
 };
 
+/**
+ * cleans all references from this suite and all child suites.
+ */
+Suite.prototype.dispose = function() {
+  this.suites.forEach(function(suite) {
+    suite.dispose();
+  });
+  this.cleanReferences();
+};
+
 /**
  * Cleans up the references to all the deferred functions
  * (before/after/beforeEach/afterEach) and tests of a Suite.
@@ -7274,6 +7766,22 @@ Suite.prototype.cleanReferences = function cleanReferences() {
   }
 };
 
+/**
+ * Returns an object suitable for IPC.
+ * Functions are represented by keys beginning with `$$`.
+ * @private
+ * @returns {Object}
+ */
+Suite.prototype.serialize = function serialize() {
+  return {
+    _bail: this._bail,
+    $$fullTitle: this.fullTitle(),
+    $$isPending: this.isPending(),
+    root: this.root,
+    title: this.title
+  };
+};
+
 var constants = utils.defineConstants(
   /**
    * {@link Suite}-related constants.
@@ -7366,7 +7874,7 @@ var deprecatedEvents = Object.keys(constants)
 
 Suite.constants = constants;
 
-},{"./errors":6,"./hook":7,"./utils":38,"debug":45,"events":50,"ms":60}],37:[function(require,module,exports){
+},{"./errors":6,"./hook":7,"./utils":38,"debug":45,"events":50,"ms":58}],37:[function(require,module,exports){
 'use strict';
 var Runnable = require('./runnable');
 var utils = require('./utils');
@@ -7395,9 +7903,9 @@ function Test(title, fn) {
       'string'
     );
   }
-  Runnable.call(this, title, fn);
-  this.pending = !fn;
   this.type = 'test';
+  Runnable.call(this, title, fn);
+  this.reset();
 }
 
 /**
@@ -7405,6 +7913,15 @@ function Test(title, fn) {
  */
 utils.inherits(Test, Runnable);
 
+/**
+ * Resets the state initially or for a next run.
+ */
+Test.prototype.reset = function() {
+  Runnable.prototype.reset.call(this);
+  this.pending = !this.fn;
+  delete this.state;
+};
+
 /**
  * Set or get retried test
  *
@@ -7417,11 +7934,19 @@ Test.prototype.retriedTest = function(n) {
   this._retriedTest = n;
 };
 
+/**
+ * Add test to the list of tests marked `only`.
+ *
+ * @private
+ */
+Test.prototype.markOnly = function() {
+  this.parent.appendOnlyTest(this);
+};
+
 Test.prototype.clone = function() {
   var test = new Test(this.title, this.fn);
   test.timeout(this.timeout());
   test.slow(this.slow());
-  test.enableTimeouts(this.enableTimeouts());
   test.retries(this.retries());
   test.currentRetry(this.currentRetry());
   test.retriedTest(this.retriedTest() || this);
@@ -7432,6 +7957,34 @@ Test.prototype.clone = function() {
   return test;
 };
 
+/**
+ * Returns an minimal object suitable for transmission over IPC.
+ * Functions are represented by keys beginning with `$$`.
+ * @private
+ * @returns {Object}
+ */
+Test.prototype.serialize = function serialize() {
+  return {
+    $$currentRetry: this._currentRetry,
+    $$fullTitle: this.fullTitle(),
+    $$isPending: this.pending,
+    $$retriedTest: this._retriedTest || null,
+    $$slow: this._slow,
+    $$titlePath: this.titlePath(),
+    body: this.body,
+    duration: this.duration,
+    err: this.err,
+    parent: {
+      $$fullTitle: this.parent.fullTitle()
+    },
+    speed: this.speed,
+    state: this.state,
+    title: this.title,
+    type: this.type,
+    file: this.file
+  };
+};
+
 },{"./errors":6,"./runnable":33,"./utils":38}],38:[function(require,module,exports){
 (function (process,Buffer){
 'use strict';
@@ -7499,8 +8052,9 @@ exports.isString = function(obj) {
 exports.slug = function(str) {
   return str
     .toLowerCase()
-    .replace(/ +/g, '-')
-    .replace(/[^-\w]/g, '');
+    .replace(/\s+/g, '-')
+    .replace(/[^-\w]/g, '')
+    .replace(/-{2,}/g, '-');
 };
 
 /**
@@ -7923,7 +8477,6 @@ function isHiddenOnUnix(pathname) {
  * **Make no assumption that the names will be sorted in any fashion.**
  *
  * @public
- * @memberof Mocha.utils
  * @param {string} filepath - Base path to start searching from.
  * @param {string[]} [extensions=[]] - File extensions to look for.
  * @param {boolean} [recursive=false] - Whether to recurse into subdirectories.
@@ -8073,7 +8626,7 @@ exports.stackTraceFilter = function() {
   var slash = path.sep;
   var cwd;
   if (is.node) {
-    cwd = process.cwd() + slash;
+    cwd = exports.cwd() + slash;
   } else {
     cwd = (typeof location === 'undefined'
       ? window.location
@@ -8189,38 +8742,6 @@ exports.dQuote = function(str) {
   return '"' + str + '"';
 };
 
-/**
- * Provides simplistic message translation for dealing with plurality.
- *
- * @description
- * Use this to create messages which need to be singular or plural.
- * Some languages have several plural forms, so _complete_ message clauses
- * are preferable to generating the message on the fly.
- *
- * @private
- * @param {number} n - Non-negative integer
- * @param {string} msg1 - Message to be used in English for `n = 1`
- * @param {string} msg2 - Message to be used in English for `n = 0, 2, 3, ...`
- * @returns {string} message corresponding to value of `n`
- * @example
- * var sprintf = require('util').format;
- * var pkgs = ['one', 'two'];
- * var msg = sprintf(
- *   ngettext(
- *     pkgs.length,
- *     'cannot load package: %s',
- *     'cannot load packages: %s'
- *   ),
- *   pkgs.map(sQuote).join(', ')
- * );
- * console.log(msg); // => cannot load packages: 'one', 'two'
- */
-exports.ngettext = function(n, msg1, msg2) {
-  if (typeof n === 'number' && n >= 0) {
-    return n === 1 ? msg1 : msg2;
-  }
-};
-
 /**
  * It's a noop.
  * @public
@@ -8276,22 +8797,46 @@ exports.defineConstants = function(obj) {
  * This function returns whether Node.JS has ES Module supports that is compatible with Mocha's needs,
  * which is version >=12.11.
  *
+ * @param {partialSupport} whether the full Node.js ESM support is available (>= 12) or just something that supports the runtime (>= 10)
+ *
  * @returns {Boolean} whether the current version of Node.JS supports ES Modules in a way that is compatible with Mocha
  */
-exports.supportsEsModules = function() {
-  if (!process.browser && process.versions && process.versions.node) {
+exports.supportsEsModules = function(partialSupport) {
+  if (!exports.isBrowser() && process.versions && process.versions.node) {
     var versionFields = process.versions.node.split('.');
     var major = +versionFields[0];
     var minor = +versionFields[1];
 
-    if (major >= 13 || (major === 12 && minor >= 11)) {
-      return true;
+    if (!partialSupport) {
+      return major >= 13 || (major === 12 && minor >= 11);
+    } else {
+      return major >= 10;
     }
   }
 };
 
+/**
+ * Returns current working directory
+ *
+ * Wrapper around `process.cwd()` for isolation
+ * @private
+ */
+exports.cwd = function cwd() {
+  return process.cwd();
+};
+
+/**
+ * Returns `true` if Mocha is running in a browser.
+ * Checks for `process.browser`.
+ * @returns {boolean}
+ * @private
+ */
+exports.isBrowser = function isBrowser() {
+  return Boolean(process.browser);
+};
+
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"./errors":6,"_process":69,"buffer":43,"fs":42,"glob":42,"he":54,"object.assign":65,"path":42,"util":89}],39:[function(require,module,exports){
+},{"./errors":6,"_process":67,"buffer":43,"fs":42,"glob":42,"he":54,"object.assign":63,"path":42,"util":89}],39:[function(require,module,exports){
 'use strict'
 
 exports.byteLength = byteLength
@@ -8359,7 +8904,8 @@ function toByteArray (b64) {
     ? validLen - 4
     : validLen
 
-  for (var i = 0; i < len; i += 4) {
+  var i
+  for (i = 0; i < len; i += 4) {
     tmp =
       (revLookup[b64.charCodeAt(i)] << 18) |
       (revLookup[b64.charCodeAt(i + 1)] << 12) |
@@ -8475,7 +9021,7 @@ BrowserStdout.prototype._write = function(chunks, encoding, cb) {
 }
 
 }).call(this,require('_process'))
-},{"_process":69,"stream":84,"util":89}],42:[function(require,module,exports){
+},{"_process":67,"stream":83,"util":89}],42:[function(require,module,exports){
 arguments[4][40][0].apply(exports,arguments)
 },{"dup":40}],43:[function(require,module,exports){
 (function (Buffer){
@@ -10368,8 +10914,8 @@ function objectToString(o) {
   return Object.prototype.toString.call(o);
 }
 
-}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
-},{"../../is-buffer/index.js":57}],45:[function(require,module,exports){
+}).call(this,{"isBuffer":require("../../insert-module-globals/node_modules/is-buffer/index.js")})
+},{"../../insert-module-globals/node_modules/is-buffer/index.js":57}],45:[function(require,module,exports){
 (function (process){
 "use strict";
 
@@ -10553,7 +11099,7 @@ formatters.j = function (v) {
 
 
 }).call(this,require('_process'))
-},{"./common":46,"_process":69}],46:[function(require,module,exports){
+},{"./common":46,"_process":67}],46:[function(require,module,exports){
 "use strict";
 
 /**
@@ -10804,7 +11350,7 @@ function setup(env) {
 module.exports = setup;
 
 
-},{"ms":60}],47:[function(require,module,exports){
+},{"ms":58}],47:[function(require,module,exports){
 'use strict';
 
 var keys = require('object-keys');
@@ -10864,10 +11410,10 @@ defineProperties.supportsDescriptors = !!supportsDescriptors;
 
 module.exports = defineProperties;
 
-},{"object-keys":62}],48:[function(require,module,exports){
+},{"object-keys":60}],48:[function(require,module,exports){
 /*!
 
- diff v3.5.0
+ diff v4.0.1
 
 Software License Agreement (BSD License)
 
@@ -10902,1812 +11448,1555 @@ IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISI
 OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 @license
 */
-(function webpackUniversalModuleDefinition(root, factory) {
-	if(typeof exports === 'object' && typeof module === 'object')
-		module.exports = factory();
-	else if(false)
-		define([], factory);
-	else if(typeof exports === 'object')
-		exports["JsDiff"] = factory();
-	else
-		root["JsDiff"] = factory();
-})(this, function() {
-return /******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  false ? define(['exports'], factory) :
+  (global = global || self, factory(global.Diff = {}));
+}(this, function (exports) { 'use strict';
+
+  function Diff() {}
+  Diff.prototype = {
+    diff: function diff(oldString, newString) {
+      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+      var callback = options.callback;
+
+      if (typeof options === 'function') {
+        callback = options;
+        options = {};
+      }
 
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
+      this.options = options;
+      var self = this;
 
-/******/ 		// Check if module is in cache
-/******/ 		if(installedModules[moduleId])
-/******/ 			return installedModules[moduleId].exports;
+      function done(value) {
+        if (callback) {
+          setTimeout(function () {
+            callback(undefined, value);
+          }, 0);
+          return true;
+        } else {
+          return value;
+        }
+      } // Allow subclasses to massage the input prior to running
+
+
+      oldString = this.castInput(oldString);
+      newString = this.castInput(newString);
+      oldString = this.removeEmpty(this.tokenize(oldString));
+      newString = this.removeEmpty(this.tokenize(newString));
+      var newLen = newString.length,
+          oldLen = oldString.length;
+      var editLength = 1;
+      var maxEditLength = newLen + oldLen;
+      var bestPath = [{
+        newPos: -1,
+        components: []
+      }]; // Seed editLength = 0, i.e. the content starts with the same values
+
+      var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
+
+      if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
+        // Identity per the equality and tokenizer
+        return done([{
+          value: this.join(newString),
+          count: newString.length
+        }]);
+      } // Main worker method. checks all permutations of a given edit length for acceptance.
+
+
+      function execEditLength() {
+        for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
+          var basePath = void 0;
+
+          var addPath = bestPath[diagonalPath - 1],
+              removePath = bestPath[diagonalPath + 1],
+              _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
+
+          if (addPath) {
+            // No one else is going to attempt to use this value, clear it
+            bestPath[diagonalPath - 1] = undefined;
+          }
+
+          var canAdd = addPath && addPath.newPos + 1 < newLen,
+              canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
 
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			exports: {},
-/******/ 			id: moduleId,
-/******/ 			loaded: false
-/******/ 		};
-
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+          if (!canAdd && !canRemove) {
+            // If this path is a terminal then prune
+            bestPath[diagonalPath] = undefined;
+            continue;
+          } // Select the diagonal that we want to branch from. We select the prior
+          // path whose position in the new string is the farthest from the origin
+          // and does not pass the bounds of the diff graph
 
-/******/ 		// Flag the module as loaded
-/******/ 		module.loaded = true;
 
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
+          if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
+            basePath = clonePath(removePath);
+            self.pushComponent(basePath.components, undefined, true);
+          } else {
+            basePath = addPath; // No need to clone, we've pulled it from the list
 
+            basePath.newPos++;
+            self.pushComponent(basePath.components, true, undefined);
+          }
 
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
+          _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath); // If we have hit the end of both strings, then we are done
 
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
+          if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
+            return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
+          } else {
+            // Otherwise track this path as a potential candidate and continue.
+            bestPath[diagonalPath] = basePath;
+          }
+        }
 
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "";
+        editLength++;
+      } // Performs the length of edit iteration. Is a bit fugly as this has to support the
+      // sync and async mode which is never fun. Loops over execEditLength until a value
+      // is produced.
 
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(0);
-/******/ })
-/************************************************************************/
-/******/ ([
-/* 0 */
-/***/ (function(module, exports, __webpack_require__) {
 
-	/*istanbul ignore start*/'use strict';
+      if (callback) {
+        (function exec() {
+          setTimeout(function () {
+            // This should not happen, but we want to be safe.
 
-	exports.__esModule = true;
-	exports.canonicalize = exports.convertChangesToXML = exports.convertChangesToDMP = exports.merge = exports.parsePatch = exports.applyPatches = exports.applyPatch = exports.createPatch = exports.createTwoFilesPatch = exports.structuredPatch = exports.diffArrays = exports.diffJson = exports.diffCss = exports.diffSentences = exports.diffTrimmedLines = exports.diffLines = exports.diffWordsWithSpace = exports.diffWords = exports.diffChars = exports.Diff = undefined;
+            /* istanbul ignore next */
+            if (editLength > maxEditLength) {
+              return callback();
+            }
 
-	/*istanbul ignore end*/var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+            if (!execEditLength()) {
+              exec();
+            }
+          }, 0);
+        })();
+      } else {
+        while (editLength <= maxEditLength) {
+          var ret = execEditLength();
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
-
-	/*istanbul ignore end*/var /*istanbul ignore start*/_character = __webpack_require__(2) /*istanbul ignore end*/;
+          if (ret) {
+            return ret;
+          }
+        }
+      }
+    },
+    pushComponent: function pushComponent(components, added, removed) {
+      var last = components[components.length - 1];
+
+      if (last && last.added === added && last.removed === removed) {
+        // We need to clone here as the component clone operation is just
+        // as shallow array clone
+        components[components.length - 1] = {
+          count: last.count + 1,
+          added: added,
+          removed: removed
+        };
+      } else {
+        components.push({
+          count: 1,
+          added: added,
+          removed: removed
+        });
+      }
+    },
+    extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
+      var newLen = newString.length,
+          oldLen = oldString.length,
+          newPos = basePath.newPos,
+          oldPos = newPos - diagonalPath,
+          commonCount = 0;
+
+      while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
+        newPos++;
+        oldPos++;
+        commonCount++;
+      }
 
-	var /*istanbul ignore start*/_word = __webpack_require__(3) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;
+      if (commonCount) {
+        basePath.components.push({
+          count: commonCount
+        });
+      }
 
-	var /*istanbul ignore start*/_sentence = __webpack_require__(6) /*istanbul ignore end*/;
+      basePath.newPos = newPos;
+      return oldPos;
+    },
+    equals: function equals(left, right) {
+      if (this.options.comparator) {
+        return this.options.comparator(left, right);
+      } else {
+        return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
+      }
+    },
+    removeEmpty: function removeEmpty(array) {
+      var ret = [];
 
-	var /*istanbul ignore start*/_css = __webpack_require__(7) /*istanbul ignore end*/;
+      for (var i = 0; i < array.length; i++) {
+        if (array[i]) {
+          ret.push(array[i]);
+        }
+      }
 
-	var /*istanbul ignore start*/_json = __webpack_require__(8) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_array = __webpack_require__(9) /*istanbul ignore end*/;
+      return ret;
+    },
+    castInput: function castInput(value) {
+      return value;
+    },
+    tokenize: function tokenize(value) {
+      return value.split('');
+    },
+    join: function join(chars) {
+      return chars.join('');
+    }
+  };
 
-	var /*istanbul ignore start*/_apply = __webpack_require__(10) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_merge = __webpack_require__(13) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_create = __webpack_require__(14) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_dmp = __webpack_require__(16) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_xml = __webpack_require__(17) /*istanbul ignore end*/;
-
-	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	/* See LICENSE file for terms of use */
-
-	/*
-	 * Text diff implementation.
-	 *
-	 * This library supports the following APIS:
-	 * JsDiff.diffChars: Character by character diff
-	 * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
-	 * JsDiff.diffLines: Line based diff
-	 *
-	 * JsDiff.diffCss: Diff targeted at CSS content
-	 *
-	 * These methods are based on the implementation proposed in
-	 * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
-	 * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
-	 */
-	exports. /*istanbul ignore end*/Diff = _base2['default'];
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffChars = _character.diffChars;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWords = _word.diffWords;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = _word.diffWordsWithSpace;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffLines = _line.diffLines;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffTrimmedLines = _line.diffTrimmedLines;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffSentences = _sentence.diffSentences;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffCss = _css.diffCss;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffJson = _json.diffJson;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffArrays = _array.diffArrays;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/structuredPatch = _create.structuredPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = _create.createTwoFilesPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = _create.createPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatch = _apply.applyPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatches = _apply.applyPatches;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/parsePatch = _parse.parsePatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/merge = _merge.merge;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/convertChangesToDMP = _dmp.convertChangesToDMP;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/convertChangesToXML = _xml.convertChangesToXML;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = _json.canonicalize;
-
-
-
-/***/ }),
-/* 1 */
-/***/ (function(module, exports) {
-
-	/*istanbul ignore start*/'use strict';
-
-	exports.__esModule = true;
-	exports['default'] = /*istanbul ignore end*/Diff;
-	function Diff() {}
-
-	Diff.prototype = {
-	  /*istanbul ignore start*/ /*istanbul ignore end*/diff: function diff(oldString, newString) {
-	    /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
-
-	    var callback = options.callback;
-	    if (typeof options === 'function') {
-	      callback = options;
-	      options = {};
-	    }
-	    this.options = options;
-
-	    var self = this;
-
-	    function done(value) {
-	      if (callback) {
-	        setTimeout(function () {
-	          callback(undefined, value);
-	        }, 0);
-	        return true;
-	      } else {
-	        return value;
-	      }
-	    }
-
-	    // Allow subclasses to massage the input prior to running
-	    oldString = this.castInput(oldString);
-	    newString = this.castInput(newString);
-
-	    oldString = this.removeEmpty(this.tokenize(oldString));
-	    newString = this.removeEmpty(this.tokenize(newString));
-
-	    var newLen = newString.length,
-	        oldLen = oldString.length;
-	    var editLength = 1;
-	    var maxEditLength = newLen + oldLen;
-	    var bestPath = [{ newPos: -1, components: [] }];
-
-	    // Seed editLength = 0, i.e. the content starts with the same values
-	    var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
-	    if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-	      // Identity per the equality and tokenizer
-	      return done([{ value: this.join(newString), count: newString.length }]);
-	    }
-
-	    // Main worker method. checks all permutations of a given edit length for acceptance.
-	    function execEditLength() {
-	      for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
-	        var basePath = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
-	        var addPath = bestPath[diagonalPath - 1],
-	            removePath = bestPath[diagonalPath + 1],
-	            _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
-	        if (addPath) {
-	          // No one else is going to attempt to use this value, clear it
-	          bestPath[diagonalPath - 1] = undefined;
-	        }
-
-	        var canAdd = addPath && addPath.newPos + 1 < newLen,
-	            canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
-	        if (!canAdd && !canRemove) {
-	          // If this path is a terminal then prune
-	          bestPath[diagonalPath] = undefined;
-	          continue;
-	        }
-
-	        // Select the diagonal that we want to branch from. We select the prior
-	        // path whose position in the new string is the farthest from the origin
-	        // and does not pass the bounds of the diff graph
-	        if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
-	          basePath = clonePath(removePath);
-	          self.pushComponent(basePath.components, undefined, true);
-	        } else {
-	          basePath = addPath; // No need to clone, we've pulled it from the list
-	          basePath.newPos++;
-	          self.pushComponent(basePath.components, true, undefined);
-	        }
-
-	        _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);
-
-	        // If we have hit the end of both strings, then we are done
-	        if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
-	          return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
-	        } else {
-	          // Otherwise track this path as a potential candidate and continue.
-	          bestPath[diagonalPath] = basePath;
-	        }
-	      }
-
-	      editLength++;
-	    }
-
-	    // Performs the length of edit iteration. Is a bit fugly as this has to support the
-	    // sync and async mode which is never fun. Loops over execEditLength until a value
-	    // is produced.
-	    if (callback) {
-	      (function exec() {
-	        setTimeout(function () {
-	          // This should not happen, but we want to be safe.
-	          /* istanbul ignore next */
-	          if (editLength > maxEditLength) {
-	            return callback();
-	          }
-
-	          if (!execEditLength()) {
-	            exec();
-	          }
-	        }, 0);
-	      })();
-	    } else {
-	      while (editLength <= maxEditLength) {
-	        var ret = execEditLength();
-	        if (ret) {
-	          return ret;
-	        }
-	      }
-	    }
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/pushComponent: function pushComponent(components, added, removed) {
-	    var last = components[components.length - 1];
-	    if (last && last.added === added && last.removed === removed) {
-	      // We need to clone here as the component clone operation is just
-	      // as shallow array clone
-	      components[components.length - 1] = { count: last.count + 1, added: added, removed: removed };
-	    } else {
-	      components.push({ count: 1, added: added, removed: removed });
-	    }
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
-	    var newLen = newString.length,
-	        oldLen = oldString.length,
-	        newPos = basePath.newPos,
-	        oldPos = newPos - diagonalPath,
-	        commonCount = 0;
-	    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
-	      newPos++;
-	      oldPos++;
-	      commonCount++;
-	    }
-
-	    if (commonCount) {
-	      basePath.components.push({ count: commonCount });
-	    }
-
-	    basePath.newPos = newPos;
-	    return oldPos;
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/equals: function equals(left, right) {
-	    if (this.options.comparator) {
-	      return this.options.comparator(left, right);
-	    } else {
-	      return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
-	    }
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/removeEmpty: function removeEmpty(array) {
-	    var ret = [];
-	    for (var i = 0; i < array.length; i++) {
-	      if (array[i]) {
-	        ret.push(array[i]);
-	      }
-	    }
-	    return ret;
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/castInput: function castInput(value) {
-	    return value;
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/tokenize: function tokenize(value) {
-	    return value.split('');
-	  },
-	  /*istanbul ignore start*/ /*istanbul ignore end*/join: function join(chars) {
-	    return chars.join('');
-	  }
-	};
+  function buildValues(diff, components, newString, oldString, useLongestToken) {
+    var componentPos = 0,
+        componentLen = components.length,
+        newPos = 0,
+        oldPos = 0;
+
+    for (; componentPos < componentLen; componentPos++) {
+      var component = components[componentPos];
+
+      if (!component.removed) {
+        if (!component.added && useLongestToken) {
+          var value = newString.slice(newPos, newPos + component.count);
+          value = value.map(function (value, i) {
+            var oldValue = oldString[oldPos + i];
+            return oldValue.length > value.length ? oldValue : value;
+          });
+          component.value = diff.join(value);
+        } else {
+          component.value = diff.join(newString.slice(newPos, newPos + component.count));
+        }
 
-	function buildValues(diff, components, newString, oldString, useLongestToken) {
-	  var componentPos = 0,
-	      componentLen = components.length,
-	      newPos = 0,
-	      oldPos = 0;
-
-	  for (; componentPos < componentLen; componentPos++) {
-	    var component = components[componentPos];
-	    if (!component.removed) {
-	      if (!component.added && useLongestToken) {
-	        var value = newString.slice(newPos, newPos + component.count);
-	        value = value.map(function (value, i) {
-	          var oldValue = oldString[oldPos + i];
-	          return oldValue.length > value.length ? oldValue : value;
-	        });
-
-	        component.value = diff.join(value);
-	      } else {
-	        component.value = diff.join(newString.slice(newPos, newPos + component.count));
-	      }
-	      newPos += component.count;
-
-	      // Common case
-	      if (!component.added) {
-	        oldPos += component.count;
-	      }
-	    } else {
-	      component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
-	      oldPos += component.count;
-
-	      // Reverse add and remove so removes are output first to match common convention
-	      // The diffing algorithm is tied to add then remove output and this is the simplest
-	      // route to get the desired output with minimal overhead.
-	      if (componentPos && components[componentPos - 1].added) {
-	        var tmp = components[componentPos - 1];
-	        components[componentPos - 1] = components[componentPos];
-	        components[componentPos] = tmp;
-	      }
-	    }
-	  }
-
-	  // Special case handle for when one terminal is ignored (i.e. whitespace).
-	  // For this case we merge the terminal into the prior string and drop the change.
-	  // This is only available for string mode.
-	  var lastComponent = components[componentLen - 1];
-	  if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
-	    components[componentLen - 2].value += lastComponent.value;
-	    components.pop();
-	  }
-
-	  return components;
-	}
+        newPos += component.count; // Common case
 
-	function clonePath(path) {
-	  return { newPos: path.newPos, components: path.components.slice(0) };
-	}
+        if (!component.added) {
+          oldPos += component.count;
+        }
+      } else {
+        component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
+        oldPos += component.count; // Reverse add and remove so removes are output first to match common convention
+        // The diffing algorithm is tied to add then remove output and this is the simplest
+        // route to get the desired output with minimal overhead.
+
+        if (componentPos && components[componentPos - 1].added) {
+          var tmp = components[componentPos - 1];
+          components[componentPos - 1] = components[componentPos];
+          components[componentPos] = tmp;
+        }
+      }
+    } // Special case handle for when one terminal is ignored (i.e. whitespace).
+    // For this case we merge the terminal into the prior string and drop the change.
+    // This is only available for string mode.
 
 
+    var lastComponent = components[componentLen - 1];
 
-/***/ }),
-/* 2 */
-/***/ (function(module, exports, __webpack_require__) {
+    if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
+      components[componentLen - 2].value += lastComponent.value;
+      components.pop();
+    }
 
-	/*istanbul ignore start*/'use strict';
+    return components;
+  }
 
-	exports.__esModule = true;
-	exports.characterDiff = undefined;
-	exports. /*istanbul ignore end*/diffChars = diffChars;
+  function clonePath(path) {
+    return {
+      newPos: path.newPos,
+      components: path.components.slice(0)
+    };
+  }
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+  var characterDiff = new Diff();
+  function diffChars(oldStr, newStr, options) {
+    return characterDiff.diff(oldStr, newStr, options);
+  }
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+  function generateOptions(options, defaults) {
+    if (typeof options === 'function') {
+      defaults.callback = options;
+    } else if (options) {
+      for (var name in options) {
+        /* istanbul ignore else */
+        if (options.hasOwnProperty(name)) {
+          defaults[name] = options[name];
+        }
+      }
+    }
 
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+    return defaults;
+  }
 
-	/*istanbul ignore end*/var characterDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/characterDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	function diffChars(oldStr, newStr, options) {
-	  return characterDiff.diff(oldStr, newStr, options);
-	}
+  //
+  // Ranges and exceptions:
+  // Latin-1 Supplement, 0080–00FF
+  //  - U+00D7  × Multiplication sign
+  //  - U+00F7  ÷ Division sign
+  // Latin Extended-A, 0100–017F
+  // Latin Extended-B, 0180–024F
+  // IPA Extensions, 0250–02AF
+  // Spacing Modifier Letters, 02B0–02FF
+  //  - U+02C7  ˇ &#711;  Caron
+  //  - U+02D8  ˘ &#728;  Breve
+  //  - U+02D9  ˙ &#729;  Dot Above
+  //  - U+02DA  ˚ &#730;  Ring Above
+  //  - U+02DB  ˛ &#731;  Ogonek
+  //  - U+02DC  ˜ &#732;  Small Tilde
+  //  - U+02DD  ˝ &#733;  Double Acute Accent
+  // Latin Extended Additional, 1E00–1EFF
+
+  var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
+  var reWhitespace = /\S/;
+  var wordDiff = new Diff();
+
+  wordDiff.equals = function (left, right) {
+    if (this.options.ignoreCase) {
+      left = left.toLowerCase();
+      right = right.toLowerCase();
+    }
+
+    return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
+  };
 
+  wordDiff.tokenize = function (value) {
+    var tokens = value.split(/(\s+|[()[\]{}'"]|\b)/); // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
 
+    for (var i = 0; i < tokens.length - 1; i++) {
+      // If we have an empty string in the next field and we have only word chars before and after, merge
+      if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
+        tokens[i] += tokens[i + 2];
+        tokens.splice(i + 1, 2);
+        i--;
+      }
+    }
 
-/***/ }),
-/* 3 */
-/***/ (function(module, exports, __webpack_require__) {
+    return tokens;
+  };
 
-	/*istanbul ignore start*/'use strict';
+  function diffWords(oldStr, newStr, options) {
+    options = generateOptions(options, {
+      ignoreWhitespace: true
+    });
+    return wordDiff.diff(oldStr, newStr, options);
+  }
+  function diffWordsWithSpace(oldStr, newStr, options) {
+    return wordDiff.diff(oldStr, newStr, options);
+  }
 
-	exports.__esModule = true;
-	exports.wordDiff = undefined;
-	exports. /*istanbul ignore end*/diffWords = diffWords;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = diffWordsWithSpace;
+  var lineDiff = new Diff();
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+  lineDiff.tokenize = function (value) {
+    var retLines = [],
+        linesAndNewlines = value.split(/(\n|\r\n)/); // Ignore the final empty token that occurs if the string ends with a new line
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+    if (!linesAndNewlines[linesAndNewlines.length - 1]) {
+      linesAndNewlines.pop();
+    } // Merge the content and line separators into single tokens
 
-	/*istanbul ignore end*/var /*istanbul ignore start*/_params = __webpack_require__(4) /*istanbul ignore end*/;
 
-	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+    for (var i = 0; i < linesAndNewlines.length; i++) {
+      var line = linesAndNewlines[i];
 
-	/*istanbul ignore end*/ // Based on https://en.wikipedia.org/wiki/Latin_script_in_Unicode
-	//
-	// Ranges and exceptions:
-	// Latin-1 Supplement, 0080–00FF
-	//  - U+00D7  × Multiplication sign
-	//  - U+00F7  ÷ Division sign
-	// Latin Extended-A, 0100–017F
-	// Latin Extended-B, 0180–024F
-	// IPA Extensions, 0250–02AF
-	// Spacing Modifier Letters, 02B0–02FF
-	//  - U+02C7  ˇ &#711;  Caron
-	//  - U+02D8  ˘ &#728;  Breve
-	//  - U+02D9  ˙ &#729;  Dot Above
-	//  - U+02DA  ˚ &#730;  Ring Above
-	//  - U+02DB  ˛ &#731;  Ogonek
-	//  - U+02DC  ˜ &#732;  Small Tilde
-	//  - U+02DD  ˝ &#733;  Double Acute Accent
-	// Latin Extended Additional, 1E00–1EFF
-	var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
+      if (i % 2 && !this.options.newlineIsToken) {
+        retLines[retLines.length - 1] += line;
+      } else {
+        if (this.options.ignoreWhitespace) {
+          line = line.trim();
+        }
 
-	var reWhitespace = /\S/;
+        retLines.push(line);
+      }
+    }
 
-	var wordDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/wordDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	wordDiff.equals = function (left, right) {
-	  if (this.options.ignoreCase) {
-	    left = left.toLowerCase();
-	    right = right.toLowerCase();
-	  }
-	  return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
-	};
-	wordDiff.tokenize = function (value) {
-	  var tokens = value.split(/(\s+|\b)/);
-
-	  // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
-	  for (var i = 0; i < tokens.length - 1; i++) {
-	    // If we have an empty string in the next field and we have only word chars before and after, merge
-	    if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
-	      tokens[i] += tokens[i + 2];
-	      tokens.splice(i + 1, 2);
-	      i--;
-	    }
-	  }
-
-	  return tokens;
-	};
+    return retLines;
+  };
 
-	function diffWords(oldStr, newStr, options) {
-	  options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(options, { ignoreWhitespace: true });
-	  return wordDiff.diff(oldStr, newStr, options);
-	}
+  function diffLines(oldStr, newStr, callback) {
+    return lineDiff.diff(oldStr, newStr, callback);
+  }
+  function diffTrimmedLines(oldStr, newStr, callback) {
+    var options = generateOptions(callback, {
+      ignoreWhitespace: true
+    });
+    return lineDiff.diff(oldStr, newStr, options);
+  }
 
-	function diffWordsWithSpace(oldStr, newStr, options) {
-	  return wordDiff.diff(oldStr, newStr, options);
-	}
+  var sentenceDiff = new Diff();
 
+  sentenceDiff.tokenize = function (value) {
+    return value.split(/(\S.+?[.!?])(?=\s+|$)/);
+  };
 
+  function diffSentences(oldStr, newStr, callback) {
+    return sentenceDiff.diff(oldStr, newStr, callback);
+  }
 
-/***/ }),
-/* 4 */
-/***/ (function(module, exports) {
+  var cssDiff = new Diff();
 
-	/*istanbul ignore start*/'use strict';
+  cssDiff.tokenize = function (value) {
+    return value.split(/([{}:;,]|\s+)/);
+  };
 
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/generateOptions = generateOptions;
-	function generateOptions(options, defaults) {
-	  if (typeof options === 'function') {
-	    defaults.callback = options;
-	  } else if (options) {
-	    for (var name in options) {
-	      /* istanbul ignore else */
-	      if (options.hasOwnProperty(name)) {
-	        defaults[name] = options[name];
-	      }
-	    }
-	  }
-	  return defaults;
-	}
+  function diffCss(oldStr, newStr, callback) {
+    return cssDiff.diff(oldStr, newStr, callback);
+  }
 
+  function _typeof(obj) {
+    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+      _typeof = function (obj) {
+        return typeof obj;
+      };
+    } else {
+      _typeof = function (obj) {
+        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+      };
+    }
 
+    return _typeof(obj);
+  }
 
-/***/ }),
-/* 5 */
-/***/ (function(module, exports, __webpack_require__) {
+  function _toConsumableArray(arr) {
+    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
+  }
 
-	/*istanbul ignore start*/'use strict';
+  function _arrayWithoutHoles(arr) {
+    if (Array.isArray(arr)) {
+      for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
 
-	exports.__esModule = true;
-	exports.lineDiff = undefined;
-	exports. /*istanbul ignore end*/diffLines = diffLines;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/diffTrimmedLines = diffTrimmedLines;
+      return arr2;
+    }
+  }
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+  function _iterableToArray(iter) {
+    if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
+  }
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+  function _nonIterableSpread() {
+    throw new TypeError("Invalid attempt to spread non-iterable instance");
+  }
 
-	/*istanbul ignore end*/var /*istanbul ignore start*/_params = __webpack_require__(4) /*istanbul ignore end*/;
+  var objectPrototypeToString = Object.prototype.toString;
+  var jsonDiff = new Diff(); // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
+  // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
 
-	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+  jsonDiff.useLongestToken = true;
+  jsonDiff.tokenize = lineDiff.tokenize;
 
-	/*istanbul ignore end*/var lineDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/lineDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	lineDiff.tokenize = function (value) {
-	  var retLines = [],
-	      linesAndNewlines = value.split(/(\n|\r\n)/);
+  jsonDiff.castInput = function (value) {
+    var _this$options = this.options,
+        undefinedReplacement = _this$options.undefinedReplacement,
+        _this$options$stringi = _this$options.stringifyReplacer,
+        stringifyReplacer = _this$options$stringi === void 0 ? function (k, v) {
+      return typeof v === 'undefined' ? undefinedReplacement : v;
+    } : _this$options$stringi;
+    return typeof value === 'string' ? value : JSON.stringify(canonicalize(value, null, null, stringifyReplacer), stringifyReplacer, '  ');
+  };
 
-	  // Ignore the final empty token that occurs if the string ends with a new line
-	  if (!linesAndNewlines[linesAndNewlines.length - 1]) {
-	    linesAndNewlines.pop();
-	  }
+  jsonDiff.equals = function (left, right) {
+    return Diff.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
+  };
 
-	  // Merge the content and line separators into single tokens
-	  for (var i = 0; i < linesAndNewlines.length; i++) {
-	    var line = linesAndNewlines[i];
+  function diffJson(oldObj, newObj, options) {
+    return jsonDiff.diff(oldObj, newObj, options);
+  } // This function handles the presence of circular references by bailing out when encountering an
+  // object that is already on the "stack" of items being processed. Accepts an optional replacer
 
-	    if (i % 2 && !this.options.newlineIsToken) {
-	      retLines[retLines.length - 1] += line;
-	    } else {
-	      if (this.options.ignoreWhitespace) {
-	        line = line.trim();
-	      }
-	      retLines.push(line);
-	    }
-	  }
+  function canonicalize(obj, stack, replacementStack, replacer, key) {
+    stack = stack || [];
+    replacementStack = replacementStack || [];
 
-	  return retLines;
-	};
+    if (replacer) {
+      obj = replacer(key, obj);
+    }
 
-	function diffLines(oldStr, newStr, callback) {
-	  return lineDiff.diff(oldStr, newStr, callback);
-	}
-	function diffTrimmedLines(oldStr, newStr, callback) {
-	  var options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(callback, { ignoreWhitespace: true });
-	  return lineDiff.diff(oldStr, newStr, options);
-	}
+    var i;
 
+    for (i = 0; i < stack.length; i += 1) {
+      if (stack[i] === obj) {
+        return replacementStack[i];
+      }
+    }
 
+    var canonicalizedObj;
 
-/***/ }),
-/* 6 */
-/***/ (function(module, exports, __webpack_require__) {
+    if ('[object Array]' === objectPrototypeToString.call(obj)) {
+      stack.push(obj);
+      canonicalizedObj = new Array(obj.length);
+      replacementStack.push(canonicalizedObj);
 
-	/*istanbul ignore start*/'use strict';
+      for (i = 0; i < obj.length; i += 1) {
+        canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack, replacer, key);
+      }
 
-	exports.__esModule = true;
-	exports.sentenceDiff = undefined;
-	exports. /*istanbul ignore end*/diffSentences = diffSentences;
+      stack.pop();
+      replacementStack.pop();
+      return canonicalizedObj;
+    }
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+    if (obj && obj.toJSON) {
+      obj = obj.toJSON();
+    }
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+    if (_typeof(obj) === 'object' && obj !== null) {
+      stack.push(obj);
+      canonicalizedObj = {};
+      replacementStack.push(canonicalizedObj);
 
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+      var sortedKeys = [],
+          _key;
 
-	/*istanbul ignore end*/var sentenceDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/sentenceDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	sentenceDiff.tokenize = function (value) {
-	  return value.split(/(\S.+?[.!?])(?=\s+|$)/);
-	};
+      for (_key in obj) {
+        /* istanbul ignore else */
+        if (obj.hasOwnProperty(_key)) {
+          sortedKeys.push(_key);
+        }
+      }
 
-	function diffSentences(oldStr, newStr, callback) {
-	  return sentenceDiff.diff(oldStr, newStr, callback);
-	}
+      sortedKeys.sort();
+
+      for (i = 0; i < sortedKeys.length; i += 1) {
+        _key = sortedKeys[i];
+        canonicalizedObj[_key] = canonicalize(obj[_key], stack, replacementStack, replacer, _key);
+      }
+
+      stack.pop();
+      replacementStack.pop();
+    } else {
+      canonicalizedObj = obj;
+    }
+
+    return canonicalizedObj;
+  }
+
+  var arrayDiff = new Diff();
+
+  arrayDiff.tokenize = function (value) {
+    return value.slice();
+  };
+
+  arrayDiff.join = arrayDiff.removeEmpty = function (value) {
+    return value;
+  };
+
+  function diffArrays(oldArr, newArr, callback) {
+    return arrayDiff.diff(oldArr, newArr, callback);
+  }
+
+  function parsePatch(uniDiff) {
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
+        delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
+        list = [],
+        i = 0;
+
+    function parseIndex() {
+      var index = {};
+      list.push(index); // Parse diff metadata
+
+      while (i < diffstr.length) {
+        var line = diffstr[i]; // File header found, end parsing diff metadata
+
+        if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
+          break;
+        } // Diff index
+
+
+        var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
+
+        if (header) {
+          index.index = header[1];
+        }
+
+        i++;
+      } // Parse file headers if they are defined. Unified diff requires them, but
+      // there's no technical issues to have an isolated hunk without file header
+
+
+      parseFileHeader(index);
+      parseFileHeader(index); // Parse hunks
+
+      index.hunks = [];
+
+      while (i < diffstr.length) {
+        var _line = diffstr[i];
+
+        if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
+          break;
+        } else if (/^@@/.test(_line)) {
+          index.hunks.push(parseHunk());
+        } else if (_line && options.strict) {
+          // Ignore unexpected content unless in strict mode
+          throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
+        } else {
+          i++;
+        }
+      }
+    } // Parses the --- and +++ headers, if none are found, no lines
+    // are consumed.
+
+
+    function parseFileHeader(index) {
+      var fileHeader = /^(---|\+\+\+)\s+(.*)$/.exec(diffstr[i]);
+
+      if (fileHeader) {
+        var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
+        var data = fileHeader[2].split('\t', 2);
+        var fileName = data[0].replace(/\\\\/g, '\\');
+
+        if (/^".*"$/.test(fileName)) {
+          fileName = fileName.substr(1, fileName.length - 2);
+        }
+
+        index[keyPrefix + 'FileName'] = fileName;
+        index[keyPrefix + 'Header'] = (data[1] || '').trim();
+        i++;
+      }
+    } // Parses a hunk
+    // This assumes that we are at the start of a hunk.
+
+
+    function parseHunk() {
+      var chunkHeaderIndex = i,
+          chunkHeaderLine = diffstr[i++],
+          chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
+      var hunk = {
+        oldStart: +chunkHeader[1],
+        oldLines: +chunkHeader[2] || 1,
+        newStart: +chunkHeader[3],
+        newLines: +chunkHeader[4] || 1,
+        lines: [],
+        linedelimiters: []
+      };
+      var addCount = 0,
+          removeCount = 0;
+
+      for (; i < diffstr.length; i++) {
+        // Lines starting with '---' could be mistaken for the "remove line" operation
+        // But they could be the header for the next file. Therefore prune such cases out.
+        if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
+          break;
+        }
+
+        var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];
+
+        if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
+          hunk.lines.push(diffstr[i]);
+          hunk.linedelimiters.push(delimiters[i] || '\n');
+
+          if (operation === '+') {
+            addCount++;
+          } else if (operation === '-') {
+            removeCount++;
+          } else if (operation === ' ') {
+            addCount++;
+            removeCount++;
+          }
+        } else {
+          break;
+        }
+      } // Handle the empty block count case
+
+
+      if (!addCount && hunk.newLines === 1) {
+        hunk.newLines = 0;
+      }
+
+      if (!removeCount && hunk.oldLines === 1) {
+        hunk.oldLines = 0;
+      } // Perform optional sanity checking
+
+
+      if (options.strict) {
+        if (addCount !== hunk.newLines) {
+          throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
+        }
+
+        if (removeCount !== hunk.oldLines) {
+          throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
+        }
+      }
+
+      return hunk;
+    }
+
+    while (i < diffstr.length) {
+      parseIndex();
+    }
+
+    return list;
+  }
+
+  // Iterator that traverses in the range of [min, max], stepping
+  // by distance from a given start position. I.e. for [0, 4], with
+  // start of 2, this will iterate 2, 3, 1, 4, 0.
+  function distanceIterator (start, minLine, maxLine) {
+    var wantForward = true,
+        backwardExhausted = false,
+        forwardExhausted = false,
+        localOffset = 1;
+    return function iterator() {
+      if (wantForward && !forwardExhausted) {
+        if (backwardExhausted) {
+          localOffset++;
+        } else {
+          wantForward = false;
+        } // Check if trying to fit beyond text length, and if not, check it fits
+        // after offset location (or desired location on first iteration)
+
+
+        if (start + localOffset <= maxLine) {
+          return localOffset;
+        }
+
+        forwardExhausted = true;
+      }
 
+      if (!backwardExhausted) {
+        if (!forwardExhausted) {
+          wantForward = true;
+        } // Check if trying to fit before text beginning, and if not, check it fits
+        // before offset location
 
 
-/***/ }),
-/* 7 */
-/***/ (function(module, exports, __webpack_require__) {
+        if (minLine <= start - localOffset) {
+          return -localOffset++;
+        }
+
+        backwardExhausted = true;
+        return iterator();
+      } // We tried to fit hunk before text beginning and beyond text length, then
+      // hunk can't fit on the text. Return undefined
+
+    };
+  }
+
+  function applyPatch(source, uniDiff) {
+    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+    if (typeof uniDiff === 'string') {
+      uniDiff = parsePatch(uniDiff);
+    }
+
+    if (Array.isArray(uniDiff)) {
+      if (uniDiff.length > 1) {
+        throw new Error('applyPatch only works with a single input.');
+      }
+
+      uniDiff = uniDiff[0];
+    } // Apply the diff to the input
+
+
+    var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
+        delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
+        hunks = uniDiff.hunks,
+        compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) {
+      return line === patchContent;
+    },
+        errorCount = 0,
+        fuzzFactor = options.fuzzFactor || 0,
+        minLine = 0,
+        offset = 0,
+        removeEOFNL,
+        addEOFNL;
+    /**
+     * Checks if the hunk exactly fits on the provided location
+     */
+
+
+    function hunkFits(hunk, toPos) {
+      for (var j = 0; j < hunk.lines.length; j++) {
+        var line = hunk.lines[j],
+            operation = line.length > 0 ? line[0] : ' ',
+            content = line.length > 0 ? line.substr(1) : line;
+
+        if (operation === ' ' || operation === '-') {
+          // Context sanity check
+          if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
+            errorCount++;
+
+            if (errorCount > fuzzFactor) {
+              return false;
+            }
+          }
+
+          toPos++;
+        }
+      }
+
+      return true;
+    } // Search best fit offsets for each hunk based on the previous ones
+
+
+    for (var i = 0; i < hunks.length; i++) {
+      var hunk = hunks[i],
+          maxLine = lines.length - hunk.oldLines,
+          localOffset = 0,
+          toPos = offset + hunk.oldStart - 1;
+      var iterator = distanceIterator(toPos, minLine, maxLine);
+
+      for (; localOffset !== undefined; localOffset = iterator()) {
+        if (hunkFits(hunk, toPos + localOffset)) {
+          hunk.offset = offset += localOffset;
+          break;
+        }
+      }
+
+      if (localOffset === undefined) {
+        return false;
+      } // Set lower text limit to end of the current hunk, so next ones don't try
+      // to fit over already patched text
 
-	/*istanbul ignore start*/'use strict';
 
-	exports.__esModule = true;
-	exports.cssDiff = undefined;
-	exports. /*istanbul ignore end*/diffCss = diffCss;
+      minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
+    } // Apply patch hunks
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+    var diffOffset = 0;
 
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+    for (var _i = 0; _i < hunks.length; _i++) {
+      var _hunk = hunks[_i],
+          _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;
 
-	/*istanbul ignore end*/var cssDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/cssDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	cssDiff.tokenize = function (value) {
-	  return value.split(/([{}:;,]|\s+)/);
-	};
+      diffOffset += _hunk.newLines - _hunk.oldLines;
 
-	function diffCss(oldStr, newStr, callback) {
-	  return cssDiff.diff(oldStr, newStr, callback);
-	}
+      if (_toPos < 0) {
+        // Creating a new file
+        _toPos = 0;
+      }
 
+      for (var j = 0; j < _hunk.lines.length; j++) {
+        var line = _hunk.lines[j],
+            operation = line.length > 0 ? line[0] : ' ',
+            content = line.length > 0 ? line.substr(1) : line,
+            delimiter = _hunk.linedelimiters[j];
+
+        if (operation === ' ') {
+          _toPos++;
+        } else if (operation === '-') {
+          lines.splice(_toPos, 1);
+          delimiters.splice(_toPos, 1);
+          /* istanbul ignore else */
+        } else if (operation === '+') {
+          lines.splice(_toPos, 0, content);
+          delimiters.splice(_toPos, 0, delimiter);
+          _toPos++;
+        } else if (operation === '\\') {
+          var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;
+
+          if (previousOperation === '+') {
+            removeEOFNL = true;
+          } else if (previousOperation === '-') {
+            addEOFNL = true;
+          }
+        }
+      }
+    } // Handle EOFNL insertion/removal
 
 
-/***/ }),
-/* 8 */
-/***/ (function(module, exports, __webpack_require__) {
+    if (removeEOFNL) {
+      while (!lines[lines.length - 1]) {
+        lines.pop();
+        delimiters.pop();
+      }
+    } else if (addEOFNL) {
+      lines.push('');
+      delimiters.push('\n');
+    }
 
-	/*istanbul ignore start*/'use strict';
+    for (var _k = 0; _k < lines.length - 1; _k++) {
+      lines[_k] = lines[_k] + delimiters[_k];
+    }
 
-	exports.__esModule = true;
-	exports.jsonDiff = undefined;
+    return lines.join('');
+  } // Wrapper that supports multiple file patches via callbacks.
 
-	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+  function applyPatches(uniDiff, options) {
+    if (typeof uniDiff === 'string') {
+      uniDiff = parsePatch(uniDiff);
+    }
 
-	exports. /*istanbul ignore end*/diffJson = diffJson;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = canonicalize;
+    var currentIndex = 0;
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+    function processIndex() {
+      var index = uniDiff[currentIndex++];
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
+      if (!index) {
+        return options.complete();
+      }
 
-	/*istanbul ignore end*/var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;
+      options.loadFile(index, function (err, data) {
+        if (err) {
+          return options.complete(err);
+        }
 
-	/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+        var updatedContent = applyPatch(data, index, options);
+        options.patched(index, updatedContent, function (err) {
+          if (err) {
+            return options.complete(err);
+          }
 
-	/*istanbul ignore end*/var objectPrototypeToString = Object.prototype.toString;
+          processIndex();
+        });
+      });
+    }
 
-	var jsonDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/jsonDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	// Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
-	// dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
-	jsonDiff.useLongestToken = true;
+    processIndex();
+  }
 
-	jsonDiff.tokenize = /*istanbul ignore start*/_line.lineDiff /*istanbul ignore end*/.tokenize;
-	jsonDiff.castInput = function (value) {
-	  /*istanbul ignore start*/var _options = /*istanbul ignore end*/this.options,
-	      undefinedReplacement = _options.undefinedReplacement,
-	      _options$stringifyRep = _options.stringifyReplacer,
-	      stringifyReplacer = _options$stringifyRep === undefined ? function (k, v) /*istanbul ignore start*/{
-	    return (/*istanbul ignore end*/typeof v === 'undefined' ? undefinedReplacement : v
-	    );
-	  } : _options$stringifyRep;
+  function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
+    if (!options) {
+      options = {};
+    }
 
+    if (typeof options.context === 'undefined') {
+      options.context = 4;
+    }
 
-	  return typeof value === 'string' ? value : JSON.stringify(canonicalize(value, null, null, stringifyReplacer), stringifyReplacer, '  ');
-	};
-	jsonDiff.equals = function (left, right) {
-	  return (/*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'))
-	  );
-	};
+    var diff = diffLines(oldStr, newStr, options);
+    diff.push({
+      value: '',
+      lines: []
+    }); // Append an empty value to make cleanup easier
 
-	function diffJson(oldObj, newObj, options) {
-	  return jsonDiff.diff(oldObj, newObj, options);
-	}
+    function contextLines(lines) {
+      return lines.map(function (entry) {
+        return ' ' + entry;
+      });
+    }
 
-	// This function handles the presence of circular references by bailing out when encountering an
-	// object that is already on the "stack" of items being processed. Accepts an optional replacer
-	function canonicalize(obj, stack, replacementStack, replacer, key) {
-	  stack = stack || [];
-	  replacementStack = replacementStack || [];
-
-	  if (replacer) {
-	    obj = replacer(key, obj);
-	  }
-
-	  var i = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
-
-	  for (i = 0; i < stack.length; i += 1) {
-	    if (stack[i] === obj) {
-	      return replacementStack[i];
-	    }
-	  }
-
-	  var canonicalizedObj = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
-
-	  if ('[object Array]' === objectPrototypeToString.call(obj)) {
-	    stack.push(obj);
-	    canonicalizedObj = new Array(obj.length);
-	    replacementStack.push(canonicalizedObj);
-	    for (i = 0; i < obj.length; i += 1) {
-	      canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack, replacer, key);
-	    }
-	    stack.pop();
-	    replacementStack.pop();
-	    return canonicalizedObj;
-	  }
-
-	  if (obj && obj.toJSON) {
-	    obj = obj.toJSON();
-	  }
-
-	  if ( /*istanbul ignore start*/(typeof /*istanbul ignore end*/obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && obj !== null) {
-	    stack.push(obj);
-	    canonicalizedObj = {};
-	    replacementStack.push(canonicalizedObj);
-	    var sortedKeys = [],
-	        _key = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
-	    for (_key in obj) {
-	      /* istanbul ignore else */
-	      if (obj.hasOwnProperty(_key)) {
-	        sortedKeys.push(_key);
-	      }
-	    }
-	    sortedKeys.sort();
-	    for (i = 0; i < sortedKeys.length; i += 1) {
-	      _key = sortedKeys[i];
-	      canonicalizedObj[_key] = canonicalize(obj[_key], stack, replacementStack, replacer, _key);
-	    }
-	    stack.pop();
-	    replacementStack.pop();
-	  } else {
-	    canonicalizedObj = obj;
-	  }
-	  return canonicalizedObj;
-	}
+    var hunks = [];
+    var oldRangeStart = 0,
+        newRangeStart = 0,
+        curRange = [],
+        oldLine = 1,
+        newLine = 1;
 
+    var _loop = function _loop(i) {
+      var current = diff[i],
+          lines = current.lines || current.value.replace(/\n$/, '').split('\n');
+      current.lines = lines;
 
+      if (current.added || current.removed) {
+        var _curRange;
 
-/***/ }),
-/* 9 */
-/***/ (function(module, exports, __webpack_require__) {
+        // If we have previous context, start with that
+        if (!oldRangeStart) {
+          var prev = diff[i - 1];
+          oldRangeStart = oldLine;
+          newRangeStart = newLine;
 
-	/*istanbul ignore start*/'use strict';
+          if (prev) {
+            curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
+            oldRangeStart -= curRange.length;
+            newRangeStart -= curRange.length;
+          }
+        } // Output our changes
 
-	exports.__esModule = true;
-	exports.arrayDiff = undefined;
-	exports. /*istanbul ignore end*/diffArrays = diffArrays;
 
-	var /*istanbul ignore start*/_base = __webpack_require__(1) /*istanbul ignore end*/;
+        (_curRange = curRange).push.apply(_curRange, _toConsumableArray(lines.map(function (entry) {
+          return (current.added ? '+' : '-') + entry;
+        }))); // Track the updated file position
 
-	/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);
 
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+        if (current.added) {
+          newLine += lines.length;
+        } else {
+          oldLine += lines.length;
+        }
+      } else {
+        // Identical context lines. Track line changes
+        if (oldRangeStart) {
+          // Close out any changes that have been output (or join overlapping)
+          if (lines.length <= options.context * 2 && i < diff.length - 2) {
+            var _curRange2;
+
+            // Overlapping
+            (_curRange2 = curRange).push.apply(_curRange2, _toConsumableArray(contextLines(lines)));
+          } else {
+            var _curRange3;
+
+            // end the range and output
+            var contextSize = Math.min(lines.length, options.context);
+
+            (_curRange3 = curRange).push.apply(_curRange3, _toConsumableArray(contextLines(lines.slice(0, contextSize))));
+
+            var hunk = {
+              oldStart: oldRangeStart,
+              oldLines: oldLine - oldRangeStart + contextSize,
+              newStart: newRangeStart,
+              newLines: newLine - newRangeStart + contextSize,
+              lines: curRange
+            };
+
+            if (i >= diff.length - 2 && lines.length <= options.context) {
+              // EOF is inside this hunk
+              var oldEOFNewline = /\n$/.test(oldStr);
+              var newEOFNewline = /\n$/.test(newStr);
+              var noNlBeforeAdds = lines.length == 0 && curRange.length > hunk.oldLines;
+
+              if (!oldEOFNewline && noNlBeforeAdds) {
+                // special case: old has no eol and no trailing context; no-nl can end up before adds
+                curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
+              }
+
+              if (!oldEOFNewline && !noNlBeforeAdds || !newEOFNewline) {
+                curRange.push('\\ No newline at end of file');
+              }
+            }
 
-	/*istanbul ignore end*/var arrayDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/arrayDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
-	arrayDiff.tokenize = function (value) {
-	  return value.slice();
-	};
-	arrayDiff.join = arrayDiff.removeEmpty = function (value) {
-	  return value;
-	};
+            hunks.push(hunk);
+            oldRangeStart = 0;
+            newRangeStart = 0;
+            curRange = [];
+          }
+        }
 
-	function diffArrays(oldArr, newArr, callback) {
-	  return arrayDiff.diff(oldArr, newArr, callback);
-	}
+        oldLine += lines.length;
+        newLine += lines.length;
+      }
+    };
 
+    for (var i = 0; i < diff.length; i++) {
+      _loop(i);
+    }
 
+    return {
+      oldFileName: oldFileName,
+      newFileName: newFileName,
+      oldHeader: oldHeader,
+      newHeader: newHeader,
+      hunks: hunks
+    };
+  }
+  function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
+    var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);
+    var ret = [];
 
-/***/ }),
-/* 10 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/*istanbul ignore start*/'use strict';
-
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/applyPatch = applyPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/applyPatches = applyPatches;
-
-	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;
-
-	var /*istanbul ignore start*/_distanceIterator = __webpack_require__(12) /*istanbul ignore end*/;
-
-	/*istanbul ignore start*/var _distanceIterator2 = _interopRequireDefault(_distanceIterator);
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	/*istanbul ignore end*/function applyPatch(source, uniDiff) {
-	  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
-
-	  if (typeof uniDiff === 'string') {
-	    uniDiff = /*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(uniDiff);
-	  }
-
-	  if (Array.isArray(uniDiff)) {
-	    if (uniDiff.length > 1) {
-	      throw new Error('applyPatch only works with a single input.');
-	    }
-
-	    uniDiff = uniDiff[0];
-	  }
-
-	  // Apply the diff to the input
-	  var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
-	      delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
-	      hunks = uniDiff.hunks,
-	      compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) /*istanbul ignore start*/{
-	    return (/*istanbul ignore end*/line === patchContent
-	    );
-	  },
-	      errorCount = 0,
-	      fuzzFactor = options.fuzzFactor || 0,
-	      minLine = 0,
-	      offset = 0,
-	      removeEOFNL = /*istanbul ignore start*/void 0 /*istanbul ignore end*/,
-	      addEOFNL = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
-
-	  /**
-	   * Checks if the hunk exactly fits on the provided location
-	   */
-	  function hunkFits(hunk, toPos) {
-	    for (var j = 0; j < hunk.lines.length; j++) {
-	      var line = hunk.lines[j],
-	          operation = line.length > 0 ? line[0] : ' ',
-	          content = line.length > 0 ? line.substr(1) : line;
-
-	      if (operation === ' ' || operation === '-') {
-	        // Context sanity check
-	        if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
-	          errorCount++;
-
-	          if (errorCount > fuzzFactor) {
-	            return false;
-	          }
-	        }
-	        toPos++;
-	      }
-	    }
-
-	    return true;
-	  }
-
-	  // Search best fit offsets for each hunk based on the previous ones
-	  for (var i = 0; i < hunks.length; i++) {
-	    var hunk = hunks[i],
-	        maxLine = lines.length - hunk.oldLines,
-	        localOffset = 0,
-	        toPos = offset + hunk.oldStart - 1;
-
-	    var iterator = /*istanbul ignore start*/(0, _distanceIterator2['default']) /*istanbul ignore end*/(toPos, minLine, maxLine);
-
-	    for (; localOffset !== undefined; localOffset = iterator()) {
-	      if (hunkFits(hunk, toPos + localOffset)) {
-	        hunk.offset = offset += localOffset;
-	        break;
-	      }
-	    }
-
-	    if (localOffset === undefined) {
-	      return false;
-	    }
-
-	    // Set lower text limit to end of the current hunk, so next ones don't try
-	    // to fit over already patched text
-	    minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
-	  }
-
-	  // Apply patch hunks
-	  var diffOffset = 0;
-	  for (var _i = 0; _i < hunks.length; _i++) {
-	    var _hunk = hunks[_i],
-	        _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;
-	    diffOffset += _hunk.newLines - _hunk.oldLines;
-
-	    if (_toPos < 0) {
-	      // Creating a new file
-	      _toPos = 0;
-	    }
-
-	    for (var j = 0; j < _hunk.lines.length; j++) {
-	      var line = _hunk.lines[j],
-	          operation = line.length > 0 ? line[0] : ' ',
-	          content = line.length > 0 ? line.substr(1) : line,
-	          delimiter = _hunk.linedelimiters[j];
-
-	      if (operation === ' ') {
-	        _toPos++;
-	      } else if (operation === '-') {
-	        lines.splice(_toPos, 1);
-	        delimiters.splice(_toPos, 1);
-	        /* istanbul ignore else */
-	      } else if (operation === '+') {
-	        lines.splice(_toPos, 0, content);
-	        delimiters.splice(_toPos, 0, delimiter);
-	        _toPos++;
-	      } else if (operation === '\\') {
-	        var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;
-	        if (previousOperation === '+') {
-	          removeEOFNL = true;
-	        } else if (previousOperation === '-') {
-	          addEOFNL = true;
-	        }
-	      }
-	    }
-	  }
-
-	  // Handle EOFNL insertion/removal
-	  if (removeEOFNL) {
-	    while (!lines[lines.length - 1]) {
-	      lines.pop();
-	      delimiters.pop();
-	    }
-	  } else if (addEOFNL) {
-	    lines.push('');
-	    delimiters.push('\n');
-	  }
-	  for (var _k = 0; _k < lines.length - 1; _k++) {
-	    lines[_k] = lines[_k] + delimiters[_k];
-	  }
-	  return lines.join('');
-	}
+    if (oldFileName == newFileName) {
+      ret.push('Index: ' + oldFileName);
+    }
 
-	// Wrapper that supports multiple file patches via callbacks.
-	function applyPatches(uniDiff, options) {
-	  if (typeof uniDiff === 'string') {
-	    uniDiff = /*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(uniDiff);
-	  }
-
-	  var currentIndex = 0;
-	  function processIndex() {
-	    var index = uniDiff[currentIndex++];
-	    if (!index) {
-	      return options.complete();
-	    }
-
-	    options.loadFile(index, function (err, data) {
-	      if (err) {
-	        return options.complete(err);
-	      }
-
-	      var updatedContent = applyPatch(data, index, options);
-	      options.patched(index, updatedContent, function (err) {
-	        if (err) {
-	          return options.complete(err);
-	        }
-
-	        processIndex();
-	      });
-	    });
-	  }
-	  processIndex();
-	}
+    ret.push('===================================================================');
+    ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
+    ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
 
+    for (var i = 0; i < diff.hunks.length; i++) {
+      var hunk = diff.hunks[i];
+      ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
+      ret.push.apply(ret, hunk.lines);
+    }
 
+    return ret.join('\n') + '\n';
+  }
+  function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
+    return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
+  }
 
-/***/ }),
-/* 11 */
-/***/ (function(module, exports) {
-
-	/*istanbul ignore start*/'use strict';
-
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/parsePatch = parsePatch;
-	function parsePatch(uniDiff) {
-	  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
-
-	  var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
-	      delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
-	      list = [],
-	      i = 0;
-
-	  function parseIndex() {
-	    var index = {};
-	    list.push(index);
-
-	    // Parse diff metadata
-	    while (i < diffstr.length) {
-	      var line = diffstr[i];
-
-	      // File header found, end parsing diff metadata
-	      if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
-	        break;
-	      }
-
-	      // Diff index
-	      var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
-	      if (header) {
-	        index.index = header[1];
-	      }
-
-	      i++;
-	    }
-
-	    // Parse file headers if they are defined. Unified diff requires them, but
-	    // there's no technical issues to have an isolated hunk without file header
-	    parseFileHeader(index);
-	    parseFileHeader(index);
-
-	    // Parse hunks
-	    index.hunks = [];
-
-	    while (i < diffstr.length) {
-	      var _line = diffstr[i];
-
-	      if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
-	        break;
-	      } else if (/^@@/.test(_line)) {
-	        index.hunks.push(parseHunk());
-	      } else if (_line && options.strict) {
-	        // Ignore unexpected content unless in strict mode
-	        throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
-	      } else {
-	        i++;
-	      }
-	    }
-	  }
-
-	  // Parses the --- and +++ headers, if none are found, no lines
-	  // are consumed.
-	  function parseFileHeader(index) {
-	    var fileHeader = /^(---|\+\+\+)\s+(.*)$/.exec(diffstr[i]);
-	    if (fileHeader) {
-	      var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
-	      var data = fileHeader[2].split('\t', 2);
-	      var fileName = data[0].replace(/\\\\/g, '\\');
-	      if (/^".*"$/.test(fileName)) {
-	        fileName = fileName.substr(1, fileName.length - 2);
-	      }
-	      index[keyPrefix + 'FileName'] = fileName;
-	      index[keyPrefix + 'Header'] = (data[1] || '').trim();
-
-	      i++;
-	    }
-	  }
-
-	  // Parses a hunk
-	  // This assumes that we are at the start of a hunk.
-	  function parseHunk() {
-	    var chunkHeaderIndex = i,
-	        chunkHeaderLine = diffstr[i++],
-	        chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
-
-	    var hunk = {
-	      oldStart: +chunkHeader[1],
-	      oldLines: +chunkHeader[2] || 1,
-	      newStart: +chunkHeader[3],
-	      newLines: +chunkHeader[4] || 1,
-	      lines: [],
-	      linedelimiters: []
-	    };
-
-	    var addCount = 0,
-	        removeCount = 0;
-	    for (; i < diffstr.length; i++) {
-	      // Lines starting with '---' could be mistaken for the "remove line" operation
-	      // But they could be the header for the next file. Therefore prune such cases out.
-	      if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
-	        break;
-	      }
-	      var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];
-
-	      if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
-	        hunk.lines.push(diffstr[i]);
-	        hunk.linedelimiters.push(delimiters[i] || '\n');
-
-	        if (operation === '+') {
-	          addCount++;
-	        } else if (operation === '-') {
-	          removeCount++;
-	        } else if (operation === ' ') {
-	          addCount++;
-	          removeCount++;
-	        }
-	      } else {
-	        break;
-	      }
-	    }
-
-	    // Handle the empty block count case
-	    if (!addCount && hunk.newLines === 1) {
-	      hunk.newLines = 0;
-	    }
-	    if (!removeCount && hunk.oldLines === 1) {
-	      hunk.oldLines = 0;
-	    }
-
-	    // Perform optional sanity checking
-	    if (options.strict) {
-	      if (addCount !== hunk.newLines) {
-	        throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
-	      }
-	      if (removeCount !== hunk.oldLines) {
-	        throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
-	      }
-	    }
-
-	    return hunk;
-	  }
-
-	  while (i < diffstr.length) {
-	    parseIndex();
-	  }
-
-	  return list;
-	}
+  function arrayEqual(a, b) {
+    if (a.length !== b.length) {
+      return false;
+    }
 
+    return arrayStartsWith(a, b);
+  }
+  function arrayStartsWith(array, start) {
+    if (start.length > array.length) {
+      return false;
+    }
 
+    for (var i = 0; i < start.length; i++) {
+      if (start[i] !== array[i]) {
+        return false;
+      }
+    }
 
-/***/ }),
-/* 12 */
-/***/ (function(module, exports) {
+    return true;
+  }
 
-	/*istanbul ignore start*/"use strict";
+  function calcLineCount(hunk) {
+    var _calcOldNewLineCount = calcOldNewLineCount(hunk.lines),
+        oldLines = _calcOldNewLineCount.oldLines,
+        newLines = _calcOldNewLineCount.newLines;
 
-	exports.__esModule = true;
+    if (oldLines !== undefined) {
+      hunk.oldLines = oldLines;
+    } else {
+      delete hunk.oldLines;
+    }
 
-	exports["default"] = /*istanbul ignore end*/function (start, minLine, maxLine) {
-	  var wantForward = true,
-	      backwardExhausted = false,
-	      forwardExhausted = false,
-	      localOffset = 1;
+    if (newLines !== undefined) {
+      hunk.newLines = newLines;
+    } else {
+      delete hunk.newLines;
+    }
+  }
+  function merge(mine, theirs, base) {
+    mine = loadPatch(mine, base);
+    theirs = loadPatch(theirs, base);
+    var ret = {}; // For index we just let it pass through as it doesn't have any necessary meaning.
+    // Leaving sanity checks on this to the API consumer that may know more about the
+    // meaning in their own context.
+
+    if (mine.index || theirs.index) {
+      ret.index = mine.index || theirs.index;
+    }
+
+    if (mine.newFileName || theirs.newFileName) {
+      if (!fileNameChanged(mine)) {
+        // No header or no change in ours, use theirs (and ours if theirs does not exist)
+        ret.oldFileName = theirs.oldFileName || mine.oldFileName;
+        ret.newFileName = theirs.newFileName || mine.newFileName;
+        ret.oldHeader = theirs.oldHeader || mine.oldHeader;
+        ret.newHeader = theirs.newHeader || mine.newHeader;
+      } else if (!fileNameChanged(theirs)) {
+        // No header or no change in theirs, use ours
+        ret.oldFileName = mine.oldFileName;
+        ret.newFileName = mine.newFileName;
+        ret.oldHeader = mine.oldHeader;
+        ret.newHeader = mine.newHeader;
+      } else {
+        // Both changed... figure it out
+        ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
+        ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
+        ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
+        ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
+      }
+    }
 
-	  return function iterator() {
-	    if (wantForward && !forwardExhausted) {
-	      if (backwardExhausted) {
-	        localOffset++;
-	      } else {
-	        wantForward = false;
-	      }
+    ret.hunks = [];
+    var mineIndex = 0,
+        theirsIndex = 0,
+        mineOffset = 0,
+        theirsOffset = 0;
 
-	      // Check if trying to fit beyond text length, and if not, check it fits
-	      // after offset location (or desired location on first iteration)
-	      if (start + localOffset <= maxLine) {
-	        return localOffset;
-	      }
+    while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
+      var mineCurrent = mine.hunks[mineIndex] || {
+        oldStart: Infinity
+      },
+          theirsCurrent = theirs.hunks[theirsIndex] || {
+        oldStart: Infinity
+      };
 
-	      forwardExhausted = true;
-	    }
+      if (hunkBefore(mineCurrent, theirsCurrent)) {
+        // This patch does not overlap with any of the others, yay.
+        ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
+        mineIndex++;
+        theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
+      } else if (hunkBefore(theirsCurrent, mineCurrent)) {
+        // This patch does not overlap with any of the others, yay.
+        ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
+        theirsIndex++;
+        mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
+      } else {
+        // Overlap, merge as best we can
+        var mergedHunk = {
+          oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
+          oldLines: 0,
+          newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
+          newLines: 0,
+          lines: []
+        };
+        mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
+        theirsIndex++;
+        mineIndex++;
+        ret.hunks.push(mergedHunk);
+      }
+    }
 
-	    if (!backwardExhausted) {
-	      if (!forwardExhausted) {
-	        wantForward = true;
-	      }
+    return ret;
+  }
 
-	      // Check if trying to fit before text beginning, and if not, check it fits
-	      // before offset location
-	      if (minLine <= start - localOffset) {
-	        return -localOffset++;
-	      }
+  function loadPatch(param, base) {
+    if (typeof param === 'string') {
+      if (/^@@/m.test(param) || /^Index:/m.test(param)) {
+        return parsePatch(param)[0];
+      }
 
-	      backwardExhausted = true;
-	      return iterator();
-	    }
+      if (!base) {
+        throw new Error('Must provide a base reference or pass in a patch');
+      }
 
-	    // We tried to fit hunk before text beginning and beyond text length, then
-	    // hunk can't fit on the text. Return undefined
-	  };
-	};
+      return structuredPatch(undefined, undefined, base, param);
+    }
 
+    return param;
+  }
 
+  function fileNameChanged(patch) {
+    return patch.newFileName && patch.newFileName !== patch.oldFileName;
+  }
 
-/***/ }),
-/* 13 */
-/***/ (function(module, exports, __webpack_require__) {
+  function selectField(index, mine, theirs) {
+    if (mine === theirs) {
+      return mine;
+    } else {
+      index.conflict = true;
+      return {
+        mine: mine,
+        theirs: theirs
+      };
+    }
+  }
 
-	/*istanbul ignore start*/'use strict';
+  function hunkBefore(test, check) {
+    return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
+  }
 
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/calcLineCount = calcLineCount;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/merge = merge;
+  function cloneHunk(hunk, offset) {
+    return {
+      oldStart: hunk.oldStart,
+      oldLines: hunk.oldLines,
+      newStart: hunk.newStart + offset,
+      newLines: hunk.newLines,
+      lines: hunk.lines
+    };
+  }
 
-	var /*istanbul ignore start*/_create = __webpack_require__(14) /*istanbul ignore end*/;
+  function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
+    // This will generally result in a conflicted hunk, but there are cases where the context
+    // is the only overlap where we can successfully merge the content here.
+    var mine = {
+      offset: mineOffset,
+      lines: mineLines,
+      index: 0
+    },
+        their = {
+      offset: theirOffset,
+      lines: theirLines,
+      index: 0
+    }; // Handle any leading content
+
+    insertLeading(hunk, mine, their);
+    insertLeading(hunk, their, mine); // Now in the overlap content. Scan through and select the best changes from each.
+
+    while (mine.index < mine.lines.length && their.index < their.lines.length) {
+      var mineCurrent = mine.lines[mine.index],
+          theirCurrent = their.lines[their.index];
+
+      if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
+        // Both modified ...
+        mutualChange(hunk, mine, their);
+      } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
+        var _hunk$lines;
+
+        // Mine inserted
+        (_hunk$lines = hunk.lines).push.apply(_hunk$lines, _toConsumableArray(collectChange(mine)));
+      } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
+        var _hunk$lines2;
+
+        // Theirs inserted
+        (_hunk$lines2 = hunk.lines).push.apply(_hunk$lines2, _toConsumableArray(collectChange(their)));
+      } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
+        // Mine removed or edited
+        removal(hunk, mine, their);
+      } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
+        // Their removed or edited
+        removal(hunk, their, mine, true);
+      } else if (mineCurrent === theirCurrent) {
+        // Context identity
+        hunk.lines.push(mineCurrent);
+        mine.index++;
+        their.index++;
+      } else {
+        // Context mismatch
+        conflict(hunk, collectChange(mine), collectChange(their));
+      }
+    } // Now push anything that may be remaining
 
-	var /*istanbul ignore start*/_parse = __webpack_require__(11) /*istanbul ignore end*/;
 
-	var /*istanbul ignore start*/_array = __webpack_require__(15) /*istanbul ignore end*/;
+    insertTrailing(hunk, mine);
+    insertTrailing(hunk, their);
+    calcLineCount(hunk);
+  }
 
-	/*istanbul ignore start*/function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
+  function mutualChange(hunk, mine, their) {
+    var myChanges = collectChange(mine),
+        theirChanges = collectChange(their);
 
-	/*istanbul ignore end*/function calcLineCount(hunk) {
-	  /*istanbul ignore start*/var _calcOldNewLineCount = /*istanbul ignore end*/calcOldNewLineCount(hunk.lines),
-	      oldLines = _calcOldNewLineCount.oldLines,
-	      newLines = _calcOldNewLineCount.newLines;
+    if (allRemoves(myChanges) && allRemoves(theirChanges)) {
+      // Special case for remove changes that are supersets of one another
+      if (arrayStartsWith(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
+        var _hunk$lines3;
 
-	  if (oldLines !== undefined) {
-	    hunk.oldLines = oldLines;
-	  } else {
-	    delete hunk.oldLines;
-	  }
+        (_hunk$lines3 = hunk.lines).push.apply(_hunk$lines3, _toConsumableArray(myChanges));
 
-	  if (newLines !== undefined) {
-	    hunk.newLines = newLines;
-	  } else {
-	    delete hunk.newLines;
-	  }
-	}
+        return;
+      } else if (arrayStartsWith(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
+        var _hunk$lines4;
 
-	function merge(mine, theirs, base) {
-	  mine = loadPatch(mine, base);
-	  theirs = loadPatch(theirs, base);
-
-	  var ret = {};
-
-	  // For index we just let it pass through as it doesn't have any necessary meaning.
-	  // Leaving sanity checks on this to the API consumer that may know more about the
-	  // meaning in their own context.
-	  if (mine.index || theirs.index) {
-	    ret.index = mine.index || theirs.index;
-	  }
-
-	  if (mine.newFileName || theirs.newFileName) {
-	    if (!fileNameChanged(mine)) {
-	      // No header or no change in ours, use theirs (and ours if theirs does not exist)
-	      ret.oldFileName = theirs.oldFileName || mine.oldFileName;
-	      ret.newFileName = theirs.newFileName || mine.newFileName;
-	      ret.oldHeader = theirs.oldHeader || mine.oldHeader;
-	      ret.newHeader = theirs.newHeader || mine.newHeader;
-	    } else if (!fileNameChanged(theirs)) {
-	      // No header or no change in theirs, use ours
-	      ret.oldFileName = mine.oldFileName;
-	      ret.newFileName = mine.newFileName;
-	      ret.oldHeader = mine.oldHeader;
-	      ret.newHeader = mine.newHeader;
-	    } else {
-	      // Both changed... figure it out
-	      ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
-	      ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
-	      ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
-	      ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
-	    }
-	  }
-
-	  ret.hunks = [];
-
-	  var mineIndex = 0,
-	      theirsIndex = 0,
-	      mineOffset = 0,
-	      theirsOffset = 0;
-
-	  while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
-	    var mineCurrent = mine.hunks[mineIndex] || { oldStart: Infinity },
-	        theirsCurrent = theirs.hunks[theirsIndex] || { oldStart: Infinity };
-
-	    if (hunkBefore(mineCurrent, theirsCurrent)) {
-	      // This patch does not overlap with any of the others, yay.
-	      ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
-	      mineIndex++;
-	      theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
-	    } else if (hunkBefore(theirsCurrent, mineCurrent)) {
-	      // This patch does not overlap with any of the others, yay.
-	      ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
-	      theirsIndex++;
-	      mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
-	    } else {
-	      // Overlap, merge as best we can
-	      var mergedHunk = {
-	        oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
-	        oldLines: 0,
-	        newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
-	        newLines: 0,
-	        lines: []
-	      };
-	      mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
-	      theirsIndex++;
-	      mineIndex++;
-
-	      ret.hunks.push(mergedHunk);
-	    }
-	  }
-
-	  return ret;
-	}
+        (_hunk$lines4 = hunk.lines).push.apply(_hunk$lines4, _toConsumableArray(theirChanges));
 
-	function loadPatch(param, base) {
-	  if (typeof param === 'string') {
-	    if (/^@@/m.test(param) || /^Index:/m.test(param)) {
-	      return (/*istanbul ignore start*/(0, _parse.parsePatch) /*istanbul ignore end*/(param)[0]
-	      );
-	    }
-
-	    if (!base) {
-	      throw new Error('Must provide a base reference or pass in a patch');
-	    }
-	    return (/*istanbul ignore start*/(0, _create.structuredPatch) /*istanbul ignore end*/(undefined, undefined, base, param)
-	    );
-	  }
-
-	  return param;
-	}
+        return;
+      }
+    } else if (arrayEqual(myChanges, theirChanges)) {
+      var _hunk$lines5;
 
-	function fileNameChanged(patch) {
-	  return patch.newFileName && patch.newFileName !== patch.oldFileName;
-	}
+      (_hunk$lines5 = hunk.lines).push.apply(_hunk$lines5, _toConsumableArray(myChanges));
 
-	function selectField(index, mine, theirs) {
-	  if (mine === theirs) {
-	    return mine;
-	  } else {
-	    index.conflict = true;
-	    return { mine: mine, theirs: theirs };
-	  }
-	}
+      return;
+    }
 
-	function hunkBefore(test, check) {
-	  return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
-	}
+    conflict(hunk, myChanges, theirChanges);
+  }
 
-	function cloneHunk(hunk, offset) {
-	  return {
-	    oldStart: hunk.oldStart, oldLines: hunk.oldLines,
-	    newStart: hunk.newStart + offset, newLines: hunk.newLines,
-	    lines: hunk.lines
-	  };
-	}
+  function removal(hunk, mine, their, swap) {
+    var myChanges = collectChange(mine),
+        theirChanges = collectContext(their, myChanges);
 
-	function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
-	  // This will generally result in a conflicted hunk, but there are cases where the context
-	  // is the only overlap where we can successfully merge the content here.
-	  var mine = { offset: mineOffset, lines: mineLines, index: 0 },
-	      their = { offset: theirOffset, lines: theirLines, index: 0 };
-
-	  // Handle any leading content
-	  insertLeading(hunk, mine, their);
-	  insertLeading(hunk, their, mine);
-
-	  // Now in the overlap content. Scan through and select the best changes from each.
-	  while (mine.index < mine.lines.length && their.index < their.lines.length) {
-	    var mineCurrent = mine.lines[mine.index],
-	        theirCurrent = their.lines[their.index];
-
-	    if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
-	      // Both modified ...
-	      mutualChange(hunk, mine, their);
-	    } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
-	      /*istanbul ignore start*/var _hunk$lines;
-
-	      /*istanbul ignore end*/ // Mine inserted
-	      /*istanbul ignore start*/(_hunk$lines = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/collectChange(mine)));
-	    } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
-	      /*istanbul ignore start*/var _hunk$lines2;
-
-	      /*istanbul ignore end*/ // Theirs inserted
-	      /*istanbul ignore start*/(_hunk$lines2 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/collectChange(their)));
-	    } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
-	      // Mine removed or edited
-	      removal(hunk, mine, their);
-	    } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
-	      // Their removed or edited
-	      removal(hunk, their, mine, true);
-	    } else if (mineCurrent === theirCurrent) {
-	      // Context identity
-	      hunk.lines.push(mineCurrent);
-	      mine.index++;
-	      their.index++;
-	    } else {
-	      // Context mismatch
-	      conflict(hunk, collectChange(mine), collectChange(their));
-	    }
-	  }
-
-	  // Now push anything that may be remaining
-	  insertTrailing(hunk, mine);
-	  insertTrailing(hunk, their);
-
-	  calcLineCount(hunk);
-	}
+    if (theirChanges.merged) {
+      var _hunk$lines6;
 
-	function mutualChange(hunk, mine, their) {
-	  var myChanges = collectChange(mine),
-	      theirChanges = collectChange(their);
+      (_hunk$lines6 = hunk.lines).push.apply(_hunk$lines6, _toConsumableArray(theirChanges.merged));
+    } else {
+      conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
+    }
+  }
 
-	  if (allRemoves(myChanges) && allRemoves(theirChanges)) {
-	    // Special case for remove changes that are supersets of one another
-	    if ( /*istanbul ignore start*/(0, _array.arrayStartsWith) /*istanbul ignore end*/(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
-	      /*istanbul ignore start*/var _hunk$lines3;
+  function conflict(hunk, mine, their) {
+    hunk.conflict = true;
+    hunk.lines.push({
+      conflict: true,
+      mine: mine,
+      theirs: their
+    });
+  }
 
-	      /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines3 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/myChanges));
-	      return;
-	    } else if ( /*istanbul ignore start*/(0, _array.arrayStartsWith) /*istanbul ignore end*/(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
-	      /*istanbul ignore start*/var _hunk$lines4;
+  function insertLeading(hunk, insert, their) {
+    while (insert.offset < their.offset && insert.index < insert.lines.length) {
+      var line = insert.lines[insert.index++];
+      hunk.lines.push(line);
+      insert.offset++;
+    }
+  }
 
-	      /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines4 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines4 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/theirChanges));
-	      return;
-	    }
-	  } else if ( /*istanbul ignore start*/(0, _array.arrayEqual) /*istanbul ignore end*/(myChanges, theirChanges)) {
-	    /*istanbul ignore start*/var _hunk$lines5;
+  function insertTrailing(hunk, insert) {
+    while (insert.index < insert.lines.length) {
+      var line = insert.lines[insert.index++];
+      hunk.lines.push(line);
+    }
+  }
 
-	    /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines5 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines5 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/myChanges));
-	    return;
-	  }
+  function collectChange(state) {
+    var ret = [],
+        operation = state.lines[state.index][0];
 
-	  conflict(hunk, myChanges, theirChanges);
-	}
+    while (state.index < state.lines.length) {
+      var line = state.lines[state.index]; // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.
 
-	function removal(hunk, mine, their, swap) {
-	  var myChanges = collectChange(mine),
-	      theirChanges = collectContext(their, myChanges);
-	  if (theirChanges.merged) {
-	    /*istanbul ignore start*/var _hunk$lines6;
+      if (operation === '-' && line[0] === '+') {
+        operation = '+';
+      }
 
-	    /*istanbul ignore end*/ /*istanbul ignore start*/(_hunk$lines6 = /*istanbul ignore end*/hunk.lines).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_hunk$lines6 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/theirChanges.merged));
-	  } else {
-	    conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
-	  }
-	}
+      if (operation === line[0]) {
+        ret.push(line);
+        state.index++;
+      } else {
+        break;
+      }
+    }
 
-	function conflict(hunk, mine, their) {
-	  hunk.conflict = true;
-	  hunk.lines.push({
-	    conflict: true,
-	    mine: mine,
-	    theirs: their
-	  });
-	}
+    return ret;
+  }
 
-	function insertLeading(hunk, insert, their) {
-	  while (insert.offset < their.offset && insert.index < insert.lines.length) {
-	    var line = insert.lines[insert.index++];
-	    hunk.lines.push(line);
-	    insert.offset++;
-	  }
-	}
-	function insertTrailing(hunk, insert) {
-	  while (insert.index < insert.lines.length) {
-	    var line = insert.lines[insert.index++];
-	    hunk.lines.push(line);
-	  }
-	}
+  function collectContext(state, matchChanges) {
+    var changes = [],
+        merged = [],
+        matchIndex = 0,
+        contextChanges = false,
+        conflicted = false;
 
-	function collectChange(state) {
-	  var ret = [],
-	      operation = state.lines[state.index][0];
-	  while (state.index < state.lines.length) {
-	    var line = state.lines[state.index];
-
-	    // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.
-	    if (operation === '-' && line[0] === '+') {
-	      operation = '+';
-	    }
-
-	    if (operation === line[0]) {
-	      ret.push(line);
-	      state.index++;
-	    } else {
-	      break;
-	    }
-	  }
-
-	  return ret;
-	}
-	function collectContext(state, matchChanges) {
-	  var changes = [],
-	      merged = [],
-	      matchIndex = 0,
-	      contextChanges = false,
-	      conflicted = false;
-	  while (matchIndex < matchChanges.length && state.index < state.lines.length) {
-	    var change = state.lines[state.index],
-	        match = matchChanges[matchIndex];
-
-	    // Once we've hit our add, then we are done
-	    if (match[0] === '+') {
-	      break;
-	    }
-
-	    contextChanges = contextChanges || change[0] !== ' ';
-
-	    merged.push(match);
-	    matchIndex++;
-
-	    // Consume any additions in the other block as a conflict to attempt
-	    // to pull in the remaining context after this
-	    if (change[0] === '+') {
-	      conflicted = true;
-
-	      while (change[0] === '+') {
-	        changes.push(change);
-	        change = state.lines[++state.index];
-	      }
-	    }
-
-	    if (match.substr(1) === change.substr(1)) {
-	      changes.push(change);
-	      state.index++;
-	    } else {
-	      conflicted = true;
-	    }
-	  }
-
-	  if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
-	    conflicted = true;
-	  }
-
-	  if (conflicted) {
-	    return changes;
-	  }
-
-	  while (matchIndex < matchChanges.length) {
-	    merged.push(matchChanges[matchIndex++]);
-	  }
-
-	  return {
-	    merged: merged,
-	    changes: changes
-	  };
-	}
+    while (matchIndex < matchChanges.length && state.index < state.lines.length) {
+      var change = state.lines[state.index],
+          match = matchChanges[matchIndex]; // Once we've hit our add, then we are done
 
-	function allRemoves(changes) {
-	  return changes.reduce(function (prev, change) {
-	    return prev && change[0] === '-';
-	  }, true);
-	}
-	function skipRemoveSuperset(state, removeChanges, delta) {
-	  for (var i = 0; i < delta; i++) {
-	    var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);
-	    if (state.lines[state.index + i] !== ' ' + changeContent) {
-	      return false;
-	    }
-	  }
-
-	  state.index += delta;
-	  return true;
-	}
+      if (match[0] === '+') {
+        break;
+      }
 
-	function calcOldNewLineCount(lines) {
-	  var oldLines = 0;
-	  var newLines = 0;
-
-	  lines.forEach(function (line) {
-	    if (typeof line !== 'string') {
-	      var myCount = calcOldNewLineCount(line.mine);
-	      var theirCount = calcOldNewLineCount(line.theirs);
-
-	      if (oldLines !== undefined) {
-	        if (myCount.oldLines === theirCount.oldLines) {
-	          oldLines += myCount.oldLines;
-	        } else {
-	          oldLines = undefined;
-	        }
-	      }
-
-	      if (newLines !== undefined) {
-	        if (myCount.newLines === theirCount.newLines) {
-	          newLines += myCount.newLines;
-	        } else {
-	          newLines = undefined;
-	        }
-	      }
-	    } else {
-	      if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
-	        newLines++;
-	      }
-	      if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
-	        oldLines++;
-	      }
-	    }
-	  });
-
-	  return { oldLines: oldLines, newLines: newLines };
-	}
+      contextChanges = contextChanges || change[0] !== ' ';
+      merged.push(match);
+      matchIndex++; // Consume any additions in the other block as a conflict to attempt
+      // to pull in the remaining context after this
 
+      if (change[0] === '+') {
+        conflicted = true;
 
+        while (change[0] === '+') {
+          changes.push(change);
+          change = state.lines[++state.index];
+        }
+      }
 
-/***/ }),
-/* 14 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/*istanbul ignore start*/'use strict';
-
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/structuredPatch = structuredPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = createTwoFilesPatch;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = createPatch;
-
-	var /*istanbul ignore start*/_line = __webpack_require__(5) /*istanbul ignore end*/;
-
-	/*istanbul ignore start*/function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
-
-	/*istanbul ignore end*/function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
-	  if (!options) {
-	    options = {};
-	  }
-	  if (typeof options.context === 'undefined') {
-	    options.context = 4;
-	  }
-
-	  var diff = /*istanbul ignore start*/(0, _line.diffLines) /*istanbul ignore end*/(oldStr, newStr, options);
-	  diff.push({ value: '', lines: [] }); // Append an empty value to make cleanup easier
-
-	  function contextLines(lines) {
-	    return lines.map(function (entry) {
-	      return ' ' + entry;
-	    });
-	  }
-
-	  var hunks = [];
-	  var oldRangeStart = 0,
-	      newRangeStart = 0,
-	      curRange = [],
-	      oldLine = 1,
-	      newLine = 1;
-
-	  /*istanbul ignore start*/var _loop = function _loop( /*istanbul ignore end*/i) {
-	    var current = diff[i],
-	        lines = current.lines || current.value.replace(/\n$/, '').split('\n');
-	    current.lines = lines;
-
-	    if (current.added || current.removed) {
-	      /*istanbul ignore start*/var _curRange;
-
-	      /*istanbul ignore end*/ // If we have previous context, start with that
-	      if (!oldRangeStart) {
-	        var prev = diff[i - 1];
-	        oldRangeStart = oldLine;
-	        newRangeStart = newLine;
-
-	        if (prev) {
-	          curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
-	          oldRangeStart -= curRange.length;
-	          newRangeStart -= curRange.length;
-	        }
-	      }
-
-	      // Output our changes
-	      /*istanbul ignore start*/(_curRange = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/lines.map(function (entry) {
-	        return (current.added ? '+' : '-') + entry;
-	      })));
-
-	      // Track the updated file position
-	      if (current.added) {
-	        newLine += lines.length;
-	      } else {
-	        oldLine += lines.length;
-	      }
-	    } else {
-	      // Identical context lines. Track line changes
-	      if (oldRangeStart) {
-	        // Close out any changes that have been output (or join overlapping)
-	        if (lines.length <= options.context * 2 && i < diff.length - 2) {
-	          /*istanbul ignore start*/var _curRange2;
-
-	          /*istanbul ignore end*/ // Overlapping
-	          /*istanbul ignore start*/(_curRange2 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines)));
-	        } else {
-	          /*istanbul ignore start*/var _curRange3;
-
-	          /*istanbul ignore end*/ // end the range and output
-	          var contextSize = Math.min(lines.length, options.context);
-	          /*istanbul ignore start*/(_curRange3 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines.slice(0, contextSize))));
-
-	          var hunk = {
-	            oldStart: oldRangeStart,
-	            oldLines: oldLine - oldRangeStart + contextSize,
-	            newStart: newRangeStart,
-	            newLines: newLine - newRangeStart + contextSize,
-	            lines: curRange
-	          };
-	          if (i >= diff.length - 2 && lines.length <= options.context) {
-	            // EOF is inside this hunk
-	            var oldEOFNewline = /\n$/.test(oldStr);
-	            var newEOFNewline = /\n$/.test(newStr);
-	            if (lines.length == 0 && !oldEOFNewline) {
-	              // special case: old has no eol and no trailing context; no-nl can end up before adds
-	              curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
-	            } else if (!oldEOFNewline || !newEOFNewline) {
-	              curRange.push('\\ No newline at end of file');
-	            }
-	          }
-	          hunks.push(hunk);
-
-	          oldRangeStart = 0;
-	          newRangeStart = 0;
-	          curRange = [];
-	        }
-	      }
-	      oldLine += lines.length;
-	      newLine += lines.length;
-	    }
-	  };
-
-	  for (var i = 0; i < diff.length; i++) {
-	    /*istanbul ignore start*/_loop( /*istanbul ignore end*/i);
-	  }
-
-	  return {
-	    oldFileName: oldFileName, newFileName: newFileName,
-	    oldHeader: oldHeader, newHeader: newHeader,
-	    hunks: hunks
-	  };
-	}
+      if (match.substr(1) === change.substr(1)) {
+        changes.push(change);
+        state.index++;
+      } else {
+        conflicted = true;
+      }
+    }
 
-	function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
-	  var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);
+    if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
+      conflicted = true;
+    }
 
-	  var ret = [];
-	  if (oldFileName == newFileName) {
-	    ret.push('Index: ' + oldFileName);
-	  }
-	  ret.push('===================================================================');
-	  ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
-	  ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
+    if (conflicted) {
+      return changes;
+    }
 
-	  for (var i = 0; i < diff.hunks.length; i++) {
-	    var hunk = diff.hunks[i];
-	    ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
-	    ret.push.apply(ret, hunk.lines);
-	  }
+    while (matchIndex < matchChanges.length) {
+      merged.push(matchChanges[matchIndex++]);
+    }
 
-	  return ret.join('\n') + '\n';
-	}
+    return {
+      merged: merged,
+      changes: changes
+    };
+  }
 
-	function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
-	  return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
-	}
+  function allRemoves(changes) {
+    return changes.reduce(function (prev, change) {
+      return prev && change[0] === '-';
+    }, true);
+  }
 
+  function skipRemoveSuperset(state, removeChanges, delta) {
+    for (var i = 0; i < delta; i++) {
+      var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);
 
+      if (state.lines[state.index + i] !== ' ' + changeContent) {
+        return false;
+      }
+    }
 
-/***/ }),
-/* 15 */
-/***/ (function(module, exports) {
+    state.index += delta;
+    return true;
+  }
 
-	/*istanbul ignore start*/"use strict";
+  function calcOldNewLineCount(lines) {
+    var oldLines = 0;
+    var newLines = 0;
+    lines.forEach(function (line) {
+      if (typeof line !== 'string') {
+        var myCount = calcOldNewLineCount(line.mine);
+        var theirCount = calcOldNewLineCount(line.theirs);
 
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/arrayEqual = arrayEqual;
-	/*istanbul ignore start*/exports. /*istanbul ignore end*/arrayStartsWith = arrayStartsWith;
-	function arrayEqual(a, b) {
-	  if (a.length !== b.length) {
-	    return false;
-	  }
+        if (oldLines !== undefined) {
+          if (myCount.oldLines === theirCount.oldLines) {
+            oldLines += myCount.oldLines;
+          } else {
+            oldLines = undefined;
+          }
+        }
 
-	  return arrayStartsWith(a, b);
-	}
+        if (newLines !== undefined) {
+          if (myCount.newLines === theirCount.newLines) {
+            newLines += myCount.newLines;
+          } else {
+            newLines = undefined;
+          }
+        }
+      } else {
+        if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
+          newLines++;
+        }
 
-	function arrayStartsWith(array, start) {
-	  if (start.length > array.length) {
-	    return false;
-	  }
+        if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
+          oldLines++;
+        }
+      }
+    });
+    return {
+      oldLines: oldLines,
+      newLines: newLines
+    };
+  }
 
-	  for (var i = 0; i < start.length; i++) {
-	    if (start[i] !== array[i]) {
-	      return false;
-	    }
-	  }
+  // See: http://code.google.com/p/google-diff-match-patch/wiki/API
+  function convertChangesToDMP(changes) {
+    var ret = [],
+        change,
+        operation;
 
-	  return true;
-	}
+    for (var i = 0; i < changes.length; i++) {
+      change = changes[i];
 
+      if (change.added) {
+        operation = 1;
+      } else if (change.removed) {
+        operation = -1;
+      } else {
+        operation = 0;
+      }
 
+      ret.push([operation, change.value]);
+    }
 
-/***/ }),
-/* 16 */
-/***/ (function(module, exports) {
-
-	/*istanbul ignore start*/"use strict";
-
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/convertChangesToDMP = convertChangesToDMP;
-	// See: http://code.google.com/p/google-diff-match-patch/wiki/API
-	function convertChangesToDMP(changes) {
-	  var ret = [],
-	      change = /*istanbul ignore start*/void 0 /*istanbul ignore end*/,
-	      operation = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
-	  for (var i = 0; i < changes.length; i++) {
-	    change = changes[i];
-	    if (change.added) {
-	      operation = 1;
-	    } else if (change.removed) {
-	      operation = -1;
-	    } else {
-	      operation = 0;
-	    }
-
-	    ret.push([operation, change.value]);
-	  }
-	  return ret;
-	}
+    return ret;
+  }
 
+  function convertChangesToXML(changes) {
+    var ret = [];
 
+    for (var i = 0; i < changes.length; i++) {
+      var change = changes[i];
 
-/***/ }),
-/* 17 */
-/***/ (function(module, exports) {
+      if (change.added) {
+        ret.push('<ins>');
+      } else if (change.removed) {
+        ret.push('<del>');
+      }
 
-	/*istanbul ignore start*/'use strict';
+      ret.push(escapeHTML(change.value));
 
-	exports.__esModule = true;
-	exports. /*istanbul ignore end*/convertChangesToXML = convertChangesToXML;
-	function convertChangesToXML(changes) {
-	  var ret = [];
-	  for (var i = 0; i < changes.length; i++) {
-	    var change = changes[i];
-	    if (change.added) {
-	      ret.push('<ins>');
-	    } else if (change.removed) {
-	      ret.push('<del>');
-	    }
+      if (change.added) {
+        ret.push('</ins>');
+      } else if (change.removed) {
+        ret.push('</del>');
+      }
+    }
 
-	    ret.push(escapeHTML(change.value));
+    return ret.join('');
+  }
 
-	    if (change.added) {
-	      ret.push('</ins>');
-	    } else if (change.removed) {
-	      ret.push('</del>');
-	    }
-	  }
-	  return ret.join('');
-	}
+  function escapeHTML(s) {
+    var n = s;
+    n = n.replace(/&/g, '&amp;');
+    n = n.replace(/</g, '&lt;');
+    n = n.replace(/>/g, '&gt;');
+    n = n.replace(/"/g, '&quot;');
+    return n;
+  }
 
-	function escapeHTML(s) {
-	  var n = s;
-	  n = n.replace(/&/g, '&amp;');
-	  n = n.replace(/</g, '&lt;');
-	  n = n.replace(/>/g, '&gt;');
-	  n = n.replace(/"/g, '&quot;');
+  /* See LICENSE file for terms of use */
 
-	  return n;
-	}
+  exports.Diff = Diff;
+  exports.diffChars = diffChars;
+  exports.diffWords = diffWords;
+  exports.diffWordsWithSpace = diffWordsWithSpace;
+  exports.diffLines = diffLines;
+  exports.diffTrimmedLines = diffTrimmedLines;
+  exports.diffSentences = diffSentences;
+  exports.diffCss = diffCss;
+  exports.diffJson = diffJson;
+  exports.diffArrays = diffArrays;
+  exports.structuredPatch = structuredPatch;
+  exports.createTwoFilesPatch = createTwoFilesPatch;
+  exports.createPatch = createPatch;
+  exports.applyPatch = applyPatch;
+  exports.applyPatches = applyPatches;
+  exports.parsePatch = parsePatch;
+  exports.merge = merge;
+  exports.convertChangesToDMP = convertChangesToDMP;
+  exports.convertChangesToXML = convertChangesToXML;
+  exports.canonicalize = canonicalize;
 
+  Object.defineProperty(exports, '__esModule', { value: true });
 
+}));
 
-/***/ })
-/******/ ])
-});
-;
 },{}],49:[function(require,module,exports){
 'use strict';
 
@@ -13310,7 +13599,7 @@ module.exports = Function.prototype.bind || implementation;
 },{"./implementation":51}],53:[function(require,module,exports){
 'use strict';
 
-/* eslint complexity: [2, 17], max-statements: [2, 33] */
+/* eslint complexity: [2, 18], max-statements: [2, 33] */
 module.exports = function hasSymbols() {
 	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
 	if (typeof Symbol.iterator === 'symbol') { return true; }
@@ -13788,24 +14077,28 @@ exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
 if (typeof Object.create === 'function') {
   // implementation from standard node.js 'util' module
   module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
-      }
-    });
+    if (superCtor) {
+      ctor.super_ = superCtor
+      ctor.prototype = Object.create(superCtor.prototype, {
+        constructor: {
+          value: ctor,
+          enumerable: false,
+          writable: true,
+          configurable: true
+        }
+      })
+    }
   };
 } else {
   // old school shim for old browsers
   module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
+    if (superCtor) {
+      ctor.super_ = superCtor
+      var TempCtor = function () {}
+      TempCtor.prototype = superCtor.prototype
+      ctor.prototype = new TempCtor()
+      ctor.prototype.constructor = ctor
+    }
   }
 }
 
@@ -13833,115 +14126,6 @@ function isSlowBuffer (obj) {
 }
 
 },{}],58:[function(require,module,exports){
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
-
-},{}],59:[function(require,module,exports){
-(function (process){
-var path = require('path');
-var fs = require('fs');
-var _0777 = parseInt('0777', 8);
-
-module.exports = mkdirP.mkdirp = mkdirP.mkdirP = mkdirP;
-
-function mkdirP (p, opts, f, made) {
-    if (typeof opts === 'function') {
-        f = opts;
-        opts = {};
-    }
-    else if (!opts || typeof opts !== 'object') {
-        opts = { mode: opts };
-    }
-    
-    var mode = opts.mode;
-    var xfs = opts.fs || fs;
-    
-    if (mode === undefined) {
-        mode = _0777 & (~process.umask());
-    }
-    if (!made) made = null;
-    
-    var cb = f || function () {};
-    p = path.resolve(p);
-    
-    xfs.mkdir(p, mode, function (er) {
-        if (!er) {
-            made = made || p;
-            return cb(null, made);
-        }
-        switch (er.code) {
-            case 'ENOENT':
-                mkdirP(path.dirname(p), opts, function (er, made) {
-                    if (er) cb(er, made);
-                    else mkdirP(p, opts, cb, made);
-                });
-                break;
-
-            // In the case of any other error, just see if there's a dir
-            // there already.  If so, then hooray!  If not, then something
-            // is borked.
-            default:
-                xfs.stat(p, function (er2, stat) {
-                    // if the stat fails, then that's super weird.
-                    // let the original error be the failure reason.
-                    if (er2 || !stat.isDirectory()) cb(er, made)
-                    else cb(null, made);
-                });
-                break;
-        }
-    });
-}
-
-mkdirP.sync = function sync (p, opts, made) {
-    if (!opts || typeof opts !== 'object') {
-        opts = { mode: opts };
-    }
-    
-    var mode = opts.mode;
-    var xfs = opts.fs || fs;
-    
-    if (mode === undefined) {
-        mode = _0777 & (~process.umask());
-    }
-    if (!made) made = null;
-
-    p = path.resolve(p);
-
-    try {
-        xfs.mkdirSync(p, mode);
-        made = made || p;
-    }
-    catch (err0) {
-        switch (err0.code) {
-            case 'ENOENT' :
-                made = sync(path.dirname(p), opts, made);
-                sync(p, opts, made);
-                break;
-
-            // In the case of any other error, just see if there's a dir
-            // there already.  If so, then hooray!  If not, then something
-            // is borked.
-            default:
-                var stat;
-                try {
-                    stat = xfs.statSync(p);
-                }
-                catch (err1) {
-                    throw err0;
-                }
-                if (!stat.isDirectory()) throw err0;
-                break;
-        }
-    }
-
-    return made;
-};
-
-}).call(this,require('_process'))
-},{"_process":69,"fs":42,"path":42}],60:[function(require,module,exports){
 /**
  * Helpers.
  */
@@ -13972,7 +14156,7 @@ module.exports = function(val, options) {
   var type = typeof val;
   if (type === 'string' && val.length > 0) {
     return parse(val);
-  } else if (type === 'number' && isNaN(val) === false) {
+  } else if (type === 'number' && isFinite(val)) {
     return options.long ? fmtLong(val) : fmtShort(val);
   }
   throw new Error(
@@ -13994,7 +14178,7 @@ function parse(str) {
   if (str.length > 100) {
     return;
   }
-  var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
     str
   );
   if (!match) {
@@ -14105,7 +14289,7 @@ function plural(ms, msAbs, n, name) {
   return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
 }
 
-},{}],61:[function(require,module,exports){
+},{}],59:[function(require,module,exports){
 'use strict';
 
 var keysShim;
@@ -14139,6 +14323,8 @@ if (!Object.keys) {
 		$frames: true,
 		$innerHeight: true,
 		$innerWidth: true,
+		$onmozfullscreenchange: true,
+		$onmozfullscreenerror: true,
 		$outerHeight: true,
 		$outerWidth: true,
 		$pageXOffset: true,
@@ -14227,7 +14413,7 @@ if (!Object.keys) {
 }
 module.exports = keysShim;
 
-},{"./isArguments":63}],62:[function(require,module,exports){
+},{"./isArguments":61}],60:[function(require,module,exports){
 'use strict';
 
 var slice = Array.prototype.slice;
@@ -14261,7 +14447,7 @@ keysShim.shim = function shimObjectKeys() {
 
 module.exports = keysShim;
 
-},{"./implementation":61,"./isArguments":63}],63:[function(require,module,exports){
+},{"./implementation":59,"./isArguments":61}],61:[function(require,module,exports){
 'use strict';
 
 var toStr = Object.prototype.toString;
@@ -14280,7 +14466,7 @@ module.exports = function isArguments(value) {
 	return isArgs;
 };
 
-},{}],64:[function(require,module,exports){
+},{}],62:[function(require,module,exports){
 'use strict';
 
 // modified from https://github.com/es-shims/es6-shim
@@ -14323,7 +14509,7 @@ module.exports = function assign(target, source1) {
 	return objTarget;
 };
 
-},{"function-bind":52,"has-symbols/shams":53,"object-keys":62}],65:[function(require,module,exports){
+},{"function-bind":52,"has-symbols/shams":53,"object-keys":60}],63:[function(require,module,exports){
 'use strict';
 
 var defineProperties = require('define-properties');
@@ -14342,7 +14528,7 @@ defineProperties(polyfill, {
 
 module.exports = polyfill;
 
-},{"./implementation":64,"./polyfill":66,"./shim":67,"define-properties":47}],66:[function(require,module,exports){
+},{"./implementation":62,"./polyfill":64,"./shim":65,"define-properties":47}],64:[function(require,module,exports){
 'use strict';
 
 var implementation = require('./implementation');
@@ -14395,7 +14581,7 @@ module.exports = function getPolyfill() {
 	return Object.assign;
 };
 
-},{"./implementation":64}],67:[function(require,module,exports){
+},{"./implementation":62}],65:[function(require,module,exports){
 'use strict';
 
 var define = require('define-properties');
@@ -14411,11 +14597,12 @@ module.exports = function shimAssign() {
 	return polyfill;
 };
 
-},{"./polyfill":66,"define-properties":47}],68:[function(require,module,exports){
+},{"./polyfill":64,"define-properties":47}],66:[function(require,module,exports){
 (function (process){
 'use strict';
 
-if (!process.version ||
+if (typeof process === 'undefined' ||
+    !process.version ||
     process.version.indexOf('v0.') === 0 ||
     process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
   module.exports = { nextTick: nextTick };
@@ -14459,7 +14646,7 @@ function nextTick(fn, arg1, arg2, arg3) {
 
 
 }).call(this,require('_process'))
-},{"_process":69}],69:[function(require,module,exports){
+},{"_process":67}],67:[function(require,module,exports){
 // shim for using process in browser
 var process = module.exports = {};
 
@@ -14645,10 +14832,10 @@ process.chdir = function (dir) {
 };
 process.umask = function() { return 0; };
 
-},{}],70:[function(require,module,exports){
+},{}],68:[function(require,module,exports){
 module.exports = require('./lib/_stream_duplex.js');
 
-},{"./lib/_stream_duplex.js":71}],71:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":69}],69:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -14694,7 +14881,7 @@ var objectKeys = Object.keys || function (obj) {
 module.exports = Duplex;
 
 /*<replacement>*/
-var util = require('core-util-is');
+var util = Object.create(require('core-util-is'));
 util.inherits = require('inherits');
 /*</replacement>*/
 
@@ -14780,7 +14967,7 @@ Duplex.prototype._destroy = function (err, cb) {
 
   pna.nextTick(cb, err);
 };
-},{"./_stream_readable":73,"./_stream_writable":75,"core-util-is":44,"inherits":56,"process-nextick-args":68}],72:[function(require,module,exports){
+},{"./_stream_readable":71,"./_stream_writable":73,"core-util-is":44,"inherits":56,"process-nextick-args":66}],70:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -14813,7 +15000,7 @@ module.exports = PassThrough;
 var Transform = require('./_stream_transform');
 
 /*<replacement>*/
-var util = require('core-util-is');
+var util = Object.create(require('core-util-is'));
 util.inherits = require('inherits');
 /*</replacement>*/
 
@@ -14828,7 +15015,7 @@ function PassThrough(options) {
 PassThrough.prototype._transform = function (chunk, encoding, cb) {
   cb(null, chunk);
 };
-},{"./_stream_transform":74,"core-util-is":44,"inherits":56}],73:[function(require,module,exports){
+},{"./_stream_transform":72,"core-util-is":44,"inherits":56}],71:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -14896,7 +15083,7 @@ function _isUint8Array(obj) {
 /*</replacement>*/
 
 /*<replacement>*/
-var util = require('core-util-is');
+var util = Object.create(require('core-util-is'));
 util.inherits = require('inherits');
 /*</replacement>*/
 
@@ -15850,7 +16037,7 @@ function indexOf(xs, x) {
   return -1;
 }
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":71,"./internal/streams/BufferList":76,"./internal/streams/destroy":77,"./internal/streams/stream":78,"_process":69,"core-util-is":44,"events":50,"inherits":56,"isarray":58,"process-nextick-args":68,"safe-buffer":83,"string_decoder/":85,"util":40}],74:[function(require,module,exports){
+},{"./_stream_duplex":69,"./internal/streams/BufferList":74,"./internal/streams/destroy":75,"./internal/streams/stream":76,"_process":67,"core-util-is":44,"events":50,"inherits":56,"isarray":77,"process-nextick-args":66,"safe-buffer":82,"string_decoder/":84,"util":40}],72:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -15921,7 +16108,7 @@ module.exports = Transform;
 var Duplex = require('./_stream_duplex');
 
 /*<replacement>*/
-var util = require('core-util-is');
+var util = Object.create(require('core-util-is'));
 util.inherits = require('inherits');
 /*</replacement>*/
 
@@ -16065,7 +16252,7 @@ function done(stream, er, data) {
 
   return stream.push(null);
 }
-},{"./_stream_duplex":71,"core-util-is":44,"inherits":56}],75:[function(require,module,exports){
+},{"./_stream_duplex":69,"core-util-is":44,"inherits":56}],73:[function(require,module,exports){
 (function (process,global,setImmediate){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -16133,7 +16320,7 @@ var Duplex;
 Writable.WritableState = WritableState;
 
 /*<replacement>*/
-var util = require('core-util-is');
+var util = Object.create(require('core-util-is'));
 util.inherits = require('inherits');
 /*</replacement>*/
 
@@ -16755,7 +16942,7 @@ Writable.prototype._destroy = function (err, cb) {
   cb(err);
 };
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
-},{"./_stream_duplex":71,"./internal/streams/destroy":77,"./internal/streams/stream":78,"_process":69,"core-util-is":44,"inherits":56,"process-nextick-args":68,"safe-buffer":83,"timers":86,"util-deprecate":87}],76:[function(require,module,exports){
+},{"./_stream_duplex":69,"./internal/streams/destroy":75,"./internal/streams/stream":76,"_process":67,"core-util-is":44,"inherits":56,"process-nextick-args":66,"safe-buffer":82,"timers":85,"util-deprecate":86}],74:[function(require,module,exports){
 'use strict';
 
 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
@@ -16835,7 +17022,7 @@ if (util && util.inspect && util.inspect.custom) {
     return this.constructor.name + ' ' + obj;
   };
 }
-},{"safe-buffer":83,"util":40}],77:[function(require,module,exports){
+},{"safe-buffer":82,"util":40}],75:[function(require,module,exports){
 'use strict';
 
 /*<replacement>*/
@@ -16910,13 +17097,20 @@ module.exports = {
   destroy: destroy,
   undestroy: undestroy
 };
-},{"process-nextick-args":68}],78:[function(require,module,exports){
+},{"process-nextick-args":66}],76:[function(require,module,exports){
 module.exports = require('events').EventEmitter;
 
-},{"events":50}],79:[function(require,module,exports){
+},{"events":50}],77:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
+
+},{}],78:[function(require,module,exports){
 module.exports = require('./readable').PassThrough
 
-},{"./readable":80}],80:[function(require,module,exports){
+},{"./readable":79}],79:[function(require,module,exports){
 exports = module.exports = require('./lib/_stream_readable.js');
 exports.Stream = exports;
 exports.Readable = exports;
@@ -16925,13 +17119,13 @@ exports.Duplex = require('./lib/_stream_duplex.js');
 exports.Transform = require('./lib/_stream_transform.js');
 exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-},{"./lib/_stream_duplex.js":71,"./lib/_stream_passthrough.js":72,"./lib/_stream_readable.js":73,"./lib/_stream_transform.js":74,"./lib/_stream_writable.js":75}],81:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":69,"./lib/_stream_passthrough.js":70,"./lib/_stream_readable.js":71,"./lib/_stream_transform.js":72,"./lib/_stream_writable.js":73}],80:[function(require,module,exports){
 module.exports = require('./readable').Transform
 
-},{"./readable":80}],82:[function(require,module,exports){
+},{"./readable":79}],81:[function(require,module,exports){
 module.exports = require('./lib/_stream_writable.js');
 
-},{"./lib/_stream_writable.js":75}],83:[function(require,module,exports){
+},{"./lib/_stream_writable.js":73}],82:[function(require,module,exports){
 /* eslint-disable node/no-deprecated-api */
 var buffer = require('buffer')
 var Buffer = buffer.Buffer
@@ -16995,7 +17189,7 @@ SafeBuffer.allocUnsafeSlow = function (size) {
   return buffer.SlowBuffer(size)
 }
 
-},{"buffer":43}],84:[function(require,module,exports){
+},{"buffer":43}],83:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -17124,7 +17318,7 @@ Stream.prototype.pipe = function(dest, options) {
   return dest;
 };
 
-},{"events":50,"inherits":56,"readable-stream/duplex.js":70,"readable-stream/passthrough.js":79,"readable-stream/readable.js":80,"readable-stream/transform.js":81,"readable-stream/writable.js":82}],85:[function(require,module,exports){
+},{"events":50,"inherits":56,"readable-stream/duplex.js":68,"readable-stream/passthrough.js":78,"readable-stream/readable.js":79,"readable-stream/transform.js":80,"readable-stream/writable.js":81}],84:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -17421,7 +17615,7 @@ function simpleWrite(buf) {
 function simpleEnd(buf) {
   return buf && buf.length ? this.write(buf) : '';
 }
-},{"safe-buffer":83}],86:[function(require,module,exports){
+},{"safe-buffer":82}],85:[function(require,module,exports){
 (function (setImmediate,clearImmediate){
 var nextTick = require('process/browser.js').nextTick;
 var apply = Function.prototype.apply;
@@ -17500,7 +17694,7 @@ exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate :
   delete immediateIds[id];
 };
 }).call(this,require("timers").setImmediate,require("timers").clearImmediate)
-},{"process/browser.js":69,"timers":86}],87:[function(require,module,exports){
+},{"process/browser.js":67,"timers":85}],86:[function(require,module,exports){
 (function (global){
 
 /**
@@ -17571,6 +17765,31 @@ function config (name) {
 }
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],87:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    ctor.prototype = Object.create(superCtor.prototype, {
+      constructor: {
+        value: ctor,
+        enumerable: false,
+        writable: true,
+        configurable: true
+      }
+    });
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    var TempCtor = function () {}
+    TempCtor.prototype = superCtor.prototype
+    ctor.prototype = new TempCtor()
+    ctor.prototype.constructor = ctor
+  }
+}
+
 },{}],88:[function(require,module,exports){
 module.exports = function isBuffer(arg) {
   return arg && typeof arg === 'object'
@@ -18168,10 +18387,10 @@ function hasOwnProperty(obj, prop) {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":88,"_process":69,"inherits":56}],90:[function(require,module,exports){
+},{"./support/isBuffer":88,"_process":67,"inherits":87}],90:[function(require,module,exports){
 module.exports={
   "name": "mocha",
-  "version": "7.1.1",
+  "version": "8.0.1",
   "homepage": "https://mochajs.org/",
   "notifyLogo": "https://ibin.co/4QuRuGjXvl36.png"
 }

From e618f54e5be896042e5155b9126ebc90bbc55455 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Jul 2020 11:41:38 +0900
Subject: [PATCH 80/85] 3.28.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index fb836d7..b5a50cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.27.0",
+  "version": "3.28.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 641d171..6cd729b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.27.0",
+  "version": "3.28.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 2e707ad54f3a44230b0f5c7cf35bf42806087690 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Sep 2021 00:12:59 +0900
Subject: [PATCH 81/85] Update test workflow.

---
 .github/workflows/test.yml | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 80ef925..abec076 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -5,20 +5,16 @@ on: [push, pull_request]
 jobs:
   lint:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [14, 16]
     steps:
       - uses: actions/checkout@v2
-      - name: Setup Node.js
-        uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: npm install
-        run: npm install
-        env:
-          CI: true
-      - name: lint
-        run: npm run lint
-        env:
-          CI: true
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - run: npm run pretest
 
   unit:
     runs-on: ubuntu-latest

From b40e4bc56da7c3bc2af935f30cd5586d10c8889a Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Sep 2021 01:08:52 +0900
Subject: [PATCH 82/85] Add script to sync vendor libraries.

Update dev dependencies.
---
 bin/sync-vendor-libs.sh |     7 +
 package-lock.json       |  3243 ++-
 package.json            |    10 +-
 test/vendor/chai.js     |   253 +-
 test/vendor/mocha.js    | 49197 ++++++++++++++++++++++++--------------
 5 files changed, 33971 insertions(+), 18739 deletions(-)
 create mode 100755 bin/sync-vendor-libs.sh

diff --git a/bin/sync-vendor-libs.sh b/bin/sync-vendor-libs.sh
new file mode 100755
index 0000000..196b105
--- /dev/null
+++ b/bin/sync-vendor-libs.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+cd "$(dirname "$0")/.."
+cp node_modules/blueimp-load-image/js/load-image.js test/vendor/
+cp node_modules/blueimp-load-image/js/load-image-scale.js test/vendor/
+cp node_modules/chai/chai.js test/vendor/
+cp node_modules/mocha/mocha.js test/vendor/
+cp node_modules/mocha/mocha.css test/vendor/
diff --git a/package-lock.json b/package-lock.json
index b5a50cc..88ed1dc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,35 +1,2136 @@
 {
   "name": "blueimp-canvas-to-blob",
   "version": "3.28.0",
-  "lockfileVersion": 1,
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "name": "blueimp-canvas-to-blob",
+      "version": "3.28.0",
+      "license": "MIT",
+      "devDependencies": {
+        "blueimp-load-image": "5",
+        "chai": "4",
+        "eslint": "7",
+        "eslint-config-blueimp": "2",
+        "eslint-config-prettier": "8",
+        "eslint-plugin-jsdoc": "36",
+        "eslint-plugin-prettier": "4",
+        "mocha": "9",
+        "prettier": "2",
+        "uglify-js": "3"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.11.tgz",
+      "integrity": "sha512-Zt1yodBx1UcyiePMSkWnU4hPqhwq7hGi2nFL1LeA3EUl+q2LQx16MISgJ0+z7dnmgvP9QtIleuETGOiOH1RcIw==",
+      "dev": true,
+      "dependencies": {
+        "@babel/highlight": "^7.10.4"
+      }
+    },
+    "node_modules/@babel/helper-validator-identifier": {
+      "version": "7.15.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.15.7.tgz",
+      "integrity": "sha512-K4JvCtQqad9OY2+yTU8w+E82ywk/fe+ELNlt1G8z3bVGlZfn/hOcQQsUhGhW/N+tb3fxK800wLtKOE/aM0m72w==",
+      "dev": true,
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/highlight": {
+      "version": "7.14.5",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.14.5.tgz",
+      "integrity": "sha512-qf9u2WFWVV0MppaL877j2dBtQIDgmidgjGk5VIMw3OadXvYaXn66U1BFlH2t4+t3i+8PhedppRv+i40ABzd+gg==",
+      "dev": true,
+      "dependencies": {
+        "@babel/helper-validator-identifier": "^7.14.5",
+        "chalk": "^2.0.0",
+        "js-tokens": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "dependencies": {
+        "color-convert": "^1.9.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/chalk": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+      "dev": true,
+      "dependencies": {
+        "ansi-styles": "^3.2.1",
+        "escape-string-regexp": "^1.0.5",
+        "supports-color": "^5.3.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/color-convert": {
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+      "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+      "dev": true,
+      "dependencies": {
+        "color-name": "1.1.3"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/color-name": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
+      "dev": true
+    },
+    "node_modules/@babel/highlight/node_modules/escape-string-regexp": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.8.0"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/has-flag": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/supports-color": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+      "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+      "dev": true,
+      "dependencies": {
+        "has-flag": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@es-joy/jsdoccomment": {
+      "version": "0.10.8",
+      "resolved": "https://registry.npmjs.org/@es-joy/jsdoccomment/-/jsdoccomment-0.10.8.tgz",
+      "integrity": "sha512-3P1JiGL4xaR9PoTKUHa2N/LKwa2/eUdRqGwijMWWgBqbFEqJUVpmaOi2TcjcemrsRMgFLBzQCK4ToPhrSVDiFQ==",
+      "dev": true,
+      "dependencies": {
+        "comment-parser": "1.2.4",
+        "esquery": "^1.4.0",
+        "jsdoc-type-pratt-parser": "1.1.1"
+      },
+      "engines": {
+        "node": "^12 || ^14 || ^16"
+      }
+    },
+    "node_modules/@eslint/eslintrc": {
+      "version": "0.4.3",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-0.4.3.tgz",
+      "integrity": "sha512-J6KFFz5QCYUJq3pf0mjEcCJVERbzv71PUIDczuh9JkwGEzced6CO5ADLHB1rbf/+oPBtoPfMYNOpGDzCANlbXw==",
+      "dev": true,
+      "dependencies": {
+        "ajv": "^6.12.4",
+        "debug": "^4.1.1",
+        "espree": "^7.3.0",
+        "globals": "^13.9.0",
+        "ignore": "^4.0.6",
+        "import-fresh": "^3.2.1",
+        "js-yaml": "^3.13.1",
+        "minimatch": "^3.0.4",
+        "strip-json-comments": "^3.1.1"
+      },
+      "engines": {
+        "node": "^10.12.0 || >=12.0.0"
+      }
+    },
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+      "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+      "dev": true,
+      "requires": {
+        "lru-cache": "^6.0.0"
+      }
+    },
+    "serialize-javascript": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz",
+      "integrity": "sha512-Qr3TosvguFt8ePWqsvRfrKyQXIiW+nGbYpy8XK24NQHE83caxWt+mIymTT19DGFbNWNLfEwsrkSmN64lVWB9ag==",
+      "dev": true,
+      "requires": {
+        "randombytes": "^2.1.0"
+      }
+    },
     "shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@@ -812,14 +3372,14 @@
       "dev": true
     },
     "slice-ansi": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-2.1.0.tgz",
-      "integrity": "sha512-Qu+VC3EwYLldKa1fCxuuvULvSJOKEgk9pi8dZeCVK7TqBfUNTH4sFkk4joj8afVSfAYgJoSOetjx9QWOJ5mYoQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-4.0.0.tgz",
+      "integrity": "sha512-qMCMfhY040cVHT43K9BFygqYbUPFZKHOg7K73mtTWJRb8pyP3fzf4Ixd5SzdEJQ6MRUg/WBnOLxghZtKKurENQ==",
       "dev": true,
       "requires": {
-        "ansi-styles": "^3.2.0",
-        "astral-regex": "^1.0.0",
-        "is-fullwidth-code-point": "^2.0.0"
+        "ansi-styles": "^4.0.0",
+        "astral-regex": "^2.0.0",
+        "is-fullwidth-code-point": "^3.0.0"
       }
     },
     "spdx-exceptions": {
@@ -839,9 +3399,9 @@
       }
     },
     "spdx-license-ids": {
-      "version": "3.0.5",
-      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.5.tgz",
-      "integrity": "sha512-J+FWzZoynJEXGphVIS+XEh3kFSjZX/1i9gFBaWQcB+/tmpe2qUsSBABpcxqxnAxFdiUFEgAX1bjYGQvIZmoz9Q==",
+      "version": "3.0.10",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.10.tgz",
+      "integrity": "sha512-oie3/+gKf7QtpitB0LYLETe+k8SifzsX4KixvpOsbI6S0kRiRQ5MKOio8eMSAKQ17N06+wdEOXRiId+zOxo0hA==",
       "dev": true
     },
     "sprintf-js": {
@@ -851,40 +3411,23 @@
       "dev": true
     },
     "string-width": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
-      "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
       "dev": true,
       "requires": {
-        "emoji-regex": "^7.0.1",
-        "is-fullwidth-code-point": "^2.0.0",
-        "strip-ansi": "^5.1.0"
-      },
-      "dependencies": {
-        "ansi-regex": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
-          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
-          "dev": true
-        },
-        "strip-ansi": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
-          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^4.1.0"
-          }
-        }
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
       }
     },
     "strip-ansi": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
-      "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
       "dev": true,
       "requires": {
-        "ansi-regex": "^5.0.0"
+        "ansi-regex": "^5.0.1"
       }
     },
     "strip-json-comments": {
@@ -894,24 +3437,46 @@
       "dev": true
     },
     "supports-color": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-      "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
       "dev": true,
       "requires": {
-        "has-flag": "^3.0.0"
+        "has-flag": "^4.0.0"
       }
     },
     "table": {
-      "version": "5.4.6",
-      "resolved": "https://registry.npmjs.org/table/-/table-5.4.6.tgz",
-      "integrity": "sha512-wmEc8m4fjnob4gt5riFRtTu/6+4rSe12TpAELNSqHMfF3IqnA+CH37USM6/YR3qRZv7e56kAEAtd6nKZaxe0Ug==",
+      "version": "6.7.1",
+      "resolved": "https://registry.npmjs.org/table/-/table-6.7.1.tgz",
+      "integrity": "sha512-ZGum47Yi6KOOFDE8m223td53ath2enHcYLgOCjGr5ngu8bdIARQk6mN/wRMv4yMRcHnCSnHbCEha4sobQx5yWg==",
       "dev": true,
       "requires": {
-        "ajv": "^6.10.2",
-        "lodash": "^4.17.14",
-        "slice-ansi": "^2.1.0",
-        "string-width": "^3.0.0"
+        "ajv": "^8.0.1",
+        "lodash.clonedeep": "^4.5.0",
+        "lodash.truncate": "^4.4.2",
+        "slice-ansi": "^4.0.0",
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "dependencies": {
+        "ajv": {
+          "version": "8.6.3",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.6.3.tgz",
+          "integrity": "sha512-SMJOdDP6LqTkD0Uq8qLi+gMwSt0imXLSV080qFVwJCpH9U6Mb+SUGHAXM0KNbcBPguytWyvFxcHgMLe2D2XSpw==",
+          "dev": true,
+          "requires": {
+            "fast-deep-equal": "^3.1.1",
+            "json-schema-traverse": "^1.0.0",
+            "require-from-string": "^2.0.2",
+            "uri-js": "^4.2.2"
+          }
+        },
+        "json-schema-traverse": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+          "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+          "dev": true
+        }
       }
     },
     "text-table": {
@@ -920,6 +3485,15 @@
       "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
+    "to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dev": true,
+      "requires": {
+        "is-number": "^7.0.0"
+      }
+    },
     "type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -929,31 +3503,37 @@
         "prelude-ls": "^1.2.1"
       }
     },
+    "type-detect": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true
+    },
     "type-fest": {
-      "version": "0.8.1",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
-      "integrity": "sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==",
+      "version": "0.20.2",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.20.2.tgz",
+      "integrity": "sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==",
       "dev": true
     },
     "uglify-js": {
-      "version": "3.10.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.0.tgz",
-      "integrity": "sha512-Esj5HG5WAyrLIdYU74Z3JdG2PxdIusvj6IWHMtlyESxc7kcDz7zYlYjpnSokn1UbpV0d/QX9fan7gkCNd/9BQA==",
+      "version": "3.14.2",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.14.2.tgz",
+      "integrity": "sha512-rtPMlmcO4agTUfz10CbgJ1k6UAoXM2gWb3GoMPPZB/+/Ackf8lNWk11K4rYi2D0apgoFRLtQOZhb+/iGNJq26A==",
       "dev": true
     },
     "uri-js": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
-      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
+      "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
       "dev": true,
       "requires": {
         "punycode": "^2.1.0"
       }
     },
     "v8-compile-cache": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.1.tgz",
-      "integrity": "sha512-8OQ9CL+VWyt3JStj7HX7/ciTL2V3Rl1Wf5OL+SNTm0yK1KvtReVulksyeRnCANHHuUxHlQig+JJDlUhBt1NQDQ==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.3.0.tgz",
+      "integrity": "sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==",
       "dev": true
     },
     "which": {
@@ -971,20 +3551,79 @@
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
+    "workerpool": {
+      "version": "6.1.5",
+      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.1.5.tgz",
+      "integrity": "sha512-XdKkCK0Zqc6w3iTxLckiuJ81tiD/o5rBE/m+nXpRCB+/Sq4DqkfXZ/x0jW02DG1tGsfUGXbTJyZDP+eu67haSw==",
+      "dev": true
+    },
+    "wrap-ansi": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
     },
-    "write": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/write/-/write-1.0.3.tgz",
-      "integrity": "sha512-/lg70HAjtkUgWPVZhZcm+T4hkL8Zbtp1nFNOn3lRrxnlv50SRBv7cR7RqR+GMsd3hUXy9hWBo4CHTbFTcOYwig==",
+    "y18n": {
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
+      "dev": true
+    },
+    "yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+      "dev": true
+    },
+    "yargs": {
+      "version": "16.2.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
+      "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+      "dev": true,
+      "requires": {
+        "cliui": "^7.0.2",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.0",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^20.2.2"
+      }
+    },
+    "yargs-parser": {
+      "version": "20.2.4",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
+      "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==",
+      "dev": true
+    },
+    "yargs-unparser": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-2.0.0.tgz",
+      "integrity": "sha512-7pRTIA9Qc1caZ0bZ6RYRGbHJthJWuakf+WmHK0rVeLkNrrGhfoabBNdue6kdINI6r4if7ocq9aD/n7xwKOdzOA==",
       "dev": true,
       "requires": {
-        "mkdirp": "^0.5.1"
+        "camelcase": "^6.0.0",
+        "decamelize": "^4.0.0",
+        "flat": "^5.0.2",
+        "is-plain-obj": "^2.1.0"
       }
+    },
+    "yocto-queue": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
+      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index 6cd729b..8412280 100644
--- a/package.json
+++ b/package.json
@@ -21,11 +21,14 @@
   },
   "license": "MIT",
   "devDependencies": {
+    "blueimp-load-image": "5",
+    "chai": "4",
     "eslint": "7",
     "eslint-config-blueimp": "2",
-    "eslint-config-prettier": "6",
-    "eslint-plugin-jsdoc": "30",
-    "eslint-plugin-prettier": "3",
+    "eslint-config-prettier": "8",
+    "eslint-plugin-jsdoc": "36",
+    "eslint-plugin-prettier": "4",
+    "mocha": "9",
     "prettier": "2",
     "uglify-js": "3"
   },
@@ -52,6 +55,7 @@
   },
   "scripts": {
     "lint": "eslint .",
+    "preunit": "bin/sync-vendor-libs.sh",
     "unit": "docker-compose run --rm mocha",
     "test": "npm run lint && npm run unit",
     "posttest": "docker-compose down -v",
diff --git a/test/vendor/chai.js b/test/vendor/chai.js
index 39429c5..e1520f7 100644
--- a/test/vendor/chai.js
+++ b/test/vendor/chai.js
@@ -14,7 +14,7 @@ var used = [];
  * Chai version
  */
 
-exports.version = '4.2.0';
+exports.version = '4.3.3';
 
 /*!
  * Assertion Error
@@ -95,7 +95,7 @@ exports.use(should);
 var assert = require('./chai/interface/assert');
 exports.use(assert);
 
-},{"./chai/assertion":3,"./chai/config":4,"./chai/core/assertions":5,"./chai/interface/assert":6,"./chai/interface/expect":7,"./chai/interface/should":8,"./chai/utils":22,"assertion-error":33}],3:[function(require,module,exports){
+},{"./chai/assertion":3,"./chai/config":4,"./chai/core/assertions":5,"./chai/interface/assert":6,"./chai/interface/expect":7,"./chai/interface/should":8,"./chai/utils":23,"assertion-error":34}],3:[function(require,module,exports){
 /*!
  * chai
  * http://chaijs.com
@@ -236,11 +236,21 @@ module.exports = function (_chai, util) {
     if (!ok) {
       msg = util.getMessage(this, arguments);
       var actual = util.getActual(this, arguments);
-      throw new AssertionError(msg, {
+      var assertionErrorObjectProperties = {
           actual: actual
         , expected: expected
         , showDiff: showDiff
-      }, (config.includeStack) ? this.assert : flag(this, 'ssfi'));
+      };
+
+      var operator = util.getOperator(this, arguments);
+      if (operator) {
+        assertionErrorObjectProperties.operator = operator;
+      }
+
+      throw new AssertionError(
+        msg,
+        assertionErrorObjectProperties,
+        (config.includeStack) ? this.assert : flag(this, 'ssfi'));
     }
   };
 
@@ -395,6 +405,7 @@ module.exports = function (chai, _) {
    * - but
    * - does
    * - still
+   * - also
    *
    * @name language chains
    * @namespace BDD
@@ -404,7 +415,7 @@ module.exports = function (chai, _) {
   [ 'to', 'be', 'been', 'is'
   , 'and', 'has', 'have', 'with'
   , 'that', 'which', 'at', 'of'
-  , 'same', 'but', 'does', 'still' ].forEach(function (chain) {
+  , 'same', 'but', 'does', 'still', "also" ].forEach(function (chain) {
     Assertion.addProperty(chain);
   });
 
@@ -894,8 +905,13 @@ module.exports = function (chai, _) {
         // objects with a custom `@@toStringTag`.
         if (val !== Object(val)) {
           throw new AssertionError(
-            flagMsg + 'object tested must be an array, a map, an object,'
-              + ' a set, a string, or a weakset, but ' + objType + ' given',
+            flagMsg + 'the given combination of arguments ('
+            + objType + ' and '
+            + _.type(val).toLowerCase() + ')'
+            + ' is invalid for this assertion. '
+            + 'You can use an array, a map, an object, a set, a string, '
+            + 'or a weakset instead of a '
+            + _.type(val).toLowerCase(),
             undefined,
             ssfi
           );
@@ -1179,19 +1195,25 @@ module.exports = function (chai, _) {
    *
    *     expect(null, 'nooo why fail??').to.exist;
    *
+   * The alias `.exists` can be used interchangeably with `.exist`.
+   *
    * @name exist
+   * @alias exists
    * @namespace BDD
    * @api public
    */
 
-  Assertion.addProperty('exist', function () {
+  function assertExist () {
     var val = flag(this, 'object');
     this.assert(
         val !== null && val !== undefined
       , 'expected #{this} to exist'
       , 'expected #{this} to not exist'
     );
-  });
+  }
+
+  Assertion.addProperty('exist', assertExist);
+  Assertion.addProperty('exists', assertExist);
 
   /**
    * ### .empty
@@ -1300,7 +1322,7 @@ module.exports = function (chai, _) {
    *
    * Add `.not` earlier in the chain to negate `.arguments`. However, it's often
    * best to assert which type the target is expected to be, rather than
-   * asserting that its not an `arguments` object.
+   * asserting that it’s not an `arguments` object.
    *
    *     expect('foo').to.be.a('string'); // Recommended
    *     expect('foo').to.not.be.arguments; // Not recommended
@@ -1591,10 +1613,12 @@ module.exports = function (chai, _) {
    *     expect(1).to.be.at.least(2, 'nooo why fail??');
    *     expect(1, 'nooo why fail??').to.be.at.least(2);
    *
-   * The alias `.gte` can be used interchangeably with `.least`.
+   * The aliases `.gte` and `.greaterThanOrEqual` can be used interchangeably with
+   * `.least`.
    *
    * @name least
    * @alias gte
+   * @alias greaterThanOrEqual
    * @param {Number} n
    * @param {String} msg _optional_
    * @namespace BDD
@@ -1660,6 +1684,7 @@ module.exports = function (chai, _) {
 
   Assertion.addMethod('least', assertLeast);
   Assertion.addMethod('gte', assertLeast);
+  Assertion.addMethod('greaterThanOrEqual', assertLeast);
 
   /**
    * ### .below(n[, msg])
@@ -1797,10 +1822,12 @@ module.exports = function (chai, _) {
    *     expect(2).to.be.at.most(1, 'nooo why fail??');
    *     expect(2, 'nooo why fail??').to.be.at.most(1);
    *
-   * The alias `.lte` can be used interchangeably with `.most`.
+   * The aliases `.lte` and `.lessThanOrEqual` can be used interchangeably with
+   * `.most`.
    *
    * @name most
    * @alias lte
+   * @alias lessThanOrEqual
    * @param {Number} n
    * @param {String} msg _optional_
    * @namespace BDD
@@ -1866,6 +1893,7 @@ module.exports = function (chai, _) {
 
   Assertion.addMethod('most', assertMost);
   Assertion.addMethod('lte', assertMost);
+  Assertion.addMethod('lessThanOrEqual', assertMost);
 
   /**
    * ### .within(start, finish[, msg])
@@ -2282,7 +2310,7 @@ module.exports = function (chai, _) {
    * a `descriptor`. The problem is that it creates uncertain expectations by
    * asserting that the target either doesn't have a property descriptor with
    * the given key `name`, or that it does have a property descriptor with the
-   * given key `name` but its not deeply equal to the given `descriptor`. It's
+   * given key `name` but it’s not deeply equal to the given `descriptor`. It's
    * often best to identify the exact output that's expected, and then write an
    * assertion that only accepts that exact output.
    *
@@ -3311,8 +3339,9 @@ module.exports = function (chai, _) {
     new Assertion(obj, flagMsg, ssfi, true).is.a('number');
     if (typeof expected !== 'number' || typeof delta !== 'number') {
       flagMsg = flagMsg ? flagMsg + ': ' : '';
+      var deltaMessage = delta === undefined ? ", and a delta is required" : "";
       throw new AssertionError(
-          flagMsg + 'the arguments to closeTo or approximately must be numbers',
+          flagMsg + 'the arguments to closeTo or approximately must be numbers' + deltaMessage,
           undefined,
           ssfi
       );
@@ -3478,6 +3507,14 @@ module.exports = function (chai, _) {
    *     expect(1).to.equal(1); // Recommended
    *     expect(1).to.not.be.oneOf([2, 3, 4]); // Not recommended
    *
+   * It can also be chained with `.contain` or `.include`, which will work with
+   * both arrays and strings:
+   *
+   *     expect('Today is sunny').to.contain.oneOf(['sunny', 'cloudy'])
+   *     expect('Today is rainy').to.not.contain.oneOf(['sunny', 'cloudy'])
+   *     expect([1,2,3]).to.contain.oneOf([3,4,5])
+   *     expect([1,2,3]).to.not.contain.oneOf([4,5,6])
+   *
    * `.oneOf` accepts an optional `msg` argument which is a custom error message
    * to show when the assertion fails. The message can also be given as the
    * second argument to `expect`.
@@ -3496,16 +3533,38 @@ module.exports = function (chai, _) {
     if (msg) flag(this, 'message', msg);
     var expected = flag(this, 'object')
       , flagMsg = flag(this, 'message')
-      , ssfi = flag(this, 'ssfi');
+      , ssfi = flag(this, 'ssfi')
+      , contains = flag(this, 'contains')
+      , isDeep = flag(this, 'deep');
     new Assertion(list, flagMsg, ssfi, true).to.be.an('array');
 
-    this.assert(
-        list.indexOf(expected) > -1
-      , 'expected #{this} to be one of #{exp}'
-      , 'expected #{this} to not be one of #{exp}'
-      , list
-      , expected
-    );
+    if (contains) {
+      this.assert(
+        list.some(function(possibility) { return expected.indexOf(possibility) > -1 })
+        , 'expected #{this} to contain one of #{exp}'
+        , 'expected #{this} to not contain one of #{exp}'
+        , list
+        , expected
+      );
+    } else {
+      if (isDeep) {
+        this.assert(
+          list.some(function(possibility) { return _.eql(expected, possibility) })
+          , 'expected #{this} to deeply equal one of #{exp}'
+          , 'expected #{this} to deeply equal one of #{exp}'
+          , list
+          , expected
+        );
+      } else {
+        this.assert(
+          list.indexOf(expected) > -1
+          , 'expected #{this} to be one of #{exp}'
+          , 'expected #{this} to not be one of #{exp}'
+          , list
+          , expected
+        );
+      }
+    }
   }
 
   Assertion.addMethod('oneOf', oneOf);
@@ -5993,7 +6052,7 @@ module.exports = function (chai, util) {
    *     assert.hasAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {three: 'three'}]);
    *     assert.hasAnyDeepKeys(new Set([{one: 'one'}, {two: 'two'}]), [{one: 'one'}, {two: 'two'}]);
    *
-   * @name doesNotHaveAllKeys
+   * @name hasAnyDeepKeys
    * @param {Mixed} object
    * @param {Array|Object} keys
    * @param {String} message
@@ -6427,7 +6486,7 @@ module.exports = function (chai, util) {
    * Asserts that `set1` and `set2` have the same members in the same order.
    * Uses a deep equality check.
    *
-   * assert.sameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 }, { c: 3 } ], 'same deep ordered members');
+   *     assert.sameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 }, { c: 3 } ], 'same deep ordered members');
    *
    * @name sameDeepOrderedMembers
    * @param {Array} set1
@@ -6448,8 +6507,8 @@ module.exports = function (chai, util) {
    * Asserts that `set1` and `set2` don't have the same members in the same
    * order. Uses a deep equality check.
    *
-   * assert.notSameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 }, { z: 5 } ], 'not same deep ordered members');
-   * assert.notSameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { a: 1 }, { c: 3 } ], 'not same deep ordered members');
+   *     assert.notSameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { a: 1 }, { b: 2 }, { z: 5 } ], 'not same deep ordered members');
+   *     assert.notSameDeepOrderedMembers([ { a: 1 }, { b: 2 }, { c: 3 } ], [ { b: 2 }, { a: 1 }, { c: 3 } ], 'not same deep ordered members');
    *
    * @name notSameDeepOrderedMembers
    * @param {Array} set1
@@ -6869,7 +6928,7 @@ module.exports = function (chai, util) {
   }
 
   /**
-   * ### .increasesButNotBy(function, object, property, [message])
+   * ### .increasesButNotBy(function, object, property, delta, [message])
    *
    * Asserts that a function does not increase a numeric object property or function's return value by an amount (delta).
    *
@@ -6999,7 +7058,7 @@ module.exports = function (chai, util) {
    *     var fn = function() { obj.val = 5 };
    *     assert.doesNotDecreaseBy(fn, obj, 'val', 1);
    *
-   * @name doesNotDecrease
+   * @name doesNotDecreaseBy
    * @param {Function} modifier function
    * @param {Object} object or getter function
    * @param {String} property name _optional_
@@ -7344,7 +7403,8 @@ module.exports = function (chai, util) {
       if (this instanceof String
           || this instanceof Number
           || this instanceof Boolean
-          || typeof Symbol === 'function' && this instanceof Symbol) {
+          || typeof Symbol === 'function' && this instanceof Symbol
+          || typeof BigInt === 'function' && this instanceof BigInt) {
         return new Assertion(this.valueOf(), null, shouldGetter);
       }
       return new Assertion(this, null, shouldGetter);
@@ -7702,7 +7762,7 @@ module.exports = function addChainableMethod(ctx, name, method, chainingBehavior
   });
 };
 
-},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":30,"./transferFlags":32}],10:[function(require,module,exports){
+},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":31,"./transferFlags":33}],10:[function(require,module,exports){
 var fnLengthDesc = Object.getOwnPropertyDescriptor(function () {}, 'length');
 
 /*!
@@ -7834,7 +7894,7 @@ module.exports = function addMethod(ctx, name, method) {
   ctx[name] = proxify(methodWrapper, name);
 };
 
-},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":30,"./transferFlags":32}],12:[function(require,module,exports){
+},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":31,"./transferFlags":33}],12:[function(require,module,exports){
 /*!
  * Chai - addProperty utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -7908,7 +7968,7 @@ module.exports = function addProperty(ctx, name, getter) {
   });
 };
 
-},{"../../chai":2,"./flag":15,"./isProxyEnabled":25,"./transferFlags":32}],13:[function(require,module,exports){
+},{"../../chai":2,"./flag":15,"./isProxyEnabled":26,"./transferFlags":33}],13:[function(require,module,exports){
 /*!
  * Chai - compareByInspect utility
  * Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
@@ -7941,7 +8001,7 @@ module.exports = function compareByInspect(a, b) {
   return inspect(a) < inspect(b) ? -1 : 1;
 };
 
-},{"./inspect":23}],14:[function(require,module,exports){
+},{"./inspect":24}],14:[function(require,module,exports){
 /*!
  * Chai - expectTypes utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -7994,7 +8054,7 @@ module.exports = function expectTypes(obj, types) {
   }
 };
 
-},{"./flag":15,"assertion-error":33,"type-detect":38}],15:[function(require,module,exports){
+},{"./flag":15,"assertion-error":34,"type-detect":39}],15:[function(require,module,exports){
 /*!
  * Chai - flag utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -8131,7 +8191,64 @@ module.exports = function getMessage(obj, args) {
   return flagMsg ? flagMsg + ': ' + msg : msg;
 };
 
-},{"./flag":15,"./getActual":16,"./objDisplay":26}],19:[function(require,module,exports){
+},{"./flag":15,"./getActual":16,"./objDisplay":27}],19:[function(require,module,exports){
+var type = require('type-detect');
+
+var flag = require('./flag');
+
+function isObjectType(obj) {
+  var objectType = type(obj);
+  var objectTypes = ['Array', 'Object', 'function'];
+
+  return objectTypes.indexOf(objectType) !== -1;
+}
+
+/**
+ * ### .getOperator(message)
+ *
+ * Extract the operator from error message.
+ * Operator defined is based on below link
+ * https://nodejs.org/api/assert.html#assert_assert.
+ *
+ * Returns the `operator` or `undefined` value for an Assertion.
+ *
+ * @param {Object} object (constructed Assertion)
+ * @param {Arguments} chai.Assertion.prototype.assert arguments
+ * @namespace Utils
+ * @name getOperator
+ * @api public
+ */
+
+module.exports = function getOperator(obj, args) {
+  var operator = flag(obj, 'operator');
+  var negate = flag(obj, 'negate');
+  var expected = args[3];
+  var msg = negate ? args[2] : args[1];
+
+  if (operator) {
+    return operator;
+  }
+
+  if (typeof msg === 'function') msg = msg();
+
+  msg = msg || '';
+  if (!msg) {
+    return undefined;
+  }
+
+  if (/\shave\s/.test(msg)) {
+    return undefined;
+  }
+
+  var isObject = isObjectType(expected);
+  if (/\snot\s/.test(msg)) {
+    return isObject ? 'notDeepStrictEqual' : 'notStrictEqual';
+  }
+
+  return isObject ? 'deepStrictEqual' : 'strictEqual';
+};
+
+},{"./flag":15,"type-detect":39}],20:[function(require,module,exports){
 /*!
  * Chai - getOwnEnumerableProperties utility
  * Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
@@ -8162,7 +8279,7 @@ module.exports = function getOwnEnumerableProperties(obj) {
   return Object.keys(obj).concat(getOwnEnumerablePropertySymbols(obj));
 };
 
-},{"./getOwnEnumerablePropertySymbols":20}],20:[function(require,module,exports){
+},{"./getOwnEnumerablePropertySymbols":21}],21:[function(require,module,exports){
 /*!
  * Chai - getOwnEnumerablePropertySymbols utility
  * Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
@@ -8191,7 +8308,7 @@ module.exports = function getOwnEnumerablePropertySymbols(obj) {
   });
 };
 
-},{}],21:[function(require,module,exports){
+},{}],22:[function(require,module,exports){
 /*!
  * Chai - getProperties utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -8229,7 +8346,7 @@ module.exports = function getProperties(object) {
   return result;
 };
 
-},{}],22:[function(require,module,exports){
+},{}],23:[function(require,module,exports){
 /*!
  * chai
  * Copyright(c) 2011 Jake Luer <jake@alogicalparadox.com>
@@ -8403,7 +8520,12 @@ exports.isProxyEnabled = require('./isProxyEnabled');
 
 exports.isNaN = require('./isNaN');
 
-},{"./addChainableMethod":9,"./addLengthGuard":10,"./addMethod":11,"./addProperty":12,"./compareByInspect":13,"./expectTypes":14,"./flag":15,"./getActual":16,"./getMessage":18,"./getOwnEnumerableProperties":19,"./getOwnEnumerablePropertySymbols":20,"./inspect":23,"./isNaN":24,"./isProxyEnabled":25,"./objDisplay":26,"./overwriteChainableMethod":27,"./overwriteMethod":28,"./overwriteProperty":29,"./proxify":30,"./test":31,"./transferFlags":32,"check-error":34,"deep-eql":35,"get-func-name":36,"pathval":37,"type-detect":38}],23:[function(require,module,exports){
+/*!
+ * getOperator method
+ */
+
+exports.getOperator = require('./getOperator');
+},{"./addChainableMethod":9,"./addLengthGuard":10,"./addMethod":11,"./addProperty":12,"./compareByInspect":13,"./expectTypes":14,"./flag":15,"./getActual":16,"./getMessage":18,"./getOperator":19,"./getOwnEnumerableProperties":20,"./getOwnEnumerablePropertySymbols":21,"./inspect":24,"./isNaN":25,"./isProxyEnabled":26,"./objDisplay":27,"./overwriteChainableMethod":28,"./overwriteMethod":29,"./overwriteProperty":30,"./proxify":31,"./test":32,"./transferFlags":33,"check-error":35,"deep-eql":36,"get-func-name":37,"pathval":38,"type-detect":39}],24:[function(require,module,exports){
 // This is (almost) directly from Node.js utils
 // https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/util.js
 
@@ -8624,6 +8746,9 @@ function formatPrimitive(ctx, value) {
 
     case 'symbol':
       return ctx.stylize(value.toString(), 'symbol');
+
+    case 'bigint':
+      return ctx.stylize(value.toString() + 'n', 'bigint');
   }
   // For some reason typeof null is "object", so special case here.
   if (value === null) {
@@ -8781,7 +8906,7 @@ function objectToString(o) {
   return Object.prototype.toString.call(o);
 }
 
-},{"../config":4,"./getEnumerableProperties":17,"./getProperties":21,"get-func-name":36}],24:[function(require,module,exports){
+},{"../config":4,"./getEnumerableProperties":17,"./getProperties":22,"get-func-name":37}],25:[function(require,module,exports){
 /*!
  * Chai - isNaN utility
  * Copyright(c) 2012-2015 Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
@@ -8809,7 +8934,7 @@ function isNaN(value) {
 // If ECMAScript 6's Number.isNaN is present, prefer that.
 module.exports = Number.isNaN || isNaN;
 
-},{}],25:[function(require,module,exports){
+},{}],26:[function(require,module,exports){
 var config = require('../config');
 
 /*!
@@ -8835,7 +8960,7 @@ module.exports = function isProxyEnabled() {
     typeof Reflect !== 'undefined';
 };
 
-},{"../config":4}],26:[function(require,module,exports){
+},{"../config":4}],27:[function(require,module,exports){
 /*!
  * Chai - flag utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -8887,7 +9012,7 @@ module.exports = function objDisplay(obj) {
   }
 };
 
-},{"../config":4,"./inspect":23}],27:[function(require,module,exports){
+},{"../config":4,"./inspect":24}],28:[function(require,module,exports){
 /*!
  * Chai - overwriteChainableMethod utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -8958,7 +9083,7 @@ module.exports = function overwriteChainableMethod(ctx, name, method, chainingBe
   };
 };
 
-},{"../../chai":2,"./transferFlags":32}],28:[function(require,module,exports){
+},{"../../chai":2,"./transferFlags":33}],29:[function(require,module,exports){
 /*!
  * Chai - overwriteMethod utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -9052,7 +9177,7 @@ module.exports = function overwriteMethod(ctx, name, method) {
   ctx[name] = proxify(overwritingMethodWrapper, name);
 };
 
-},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":30,"./transferFlags":32}],29:[function(require,module,exports){
+},{"../../chai":2,"./addLengthGuard":10,"./flag":15,"./proxify":31,"./transferFlags":33}],30:[function(require,module,exports){
 /*!
  * Chai - overwriteProperty utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -9146,7 +9271,7 @@ module.exports = function overwriteProperty(ctx, name, getter) {
   });
 };
 
-},{"../../chai":2,"./flag":15,"./isProxyEnabled":25,"./transferFlags":32}],30:[function(require,module,exports){
+},{"../../chai":2,"./flag":15,"./isProxyEnabled":26,"./transferFlags":33}],31:[function(require,module,exports){
 var config = require('../config');
 var flag = require('./flag');
 var getProperties = require('./getProperties');
@@ -9295,7 +9420,7 @@ function stringDistanceCapped(strA, strB, cap) {
   return memo[strA.length][strB.length];
 }
 
-},{"../config":4,"./flag":15,"./getProperties":21,"./isProxyEnabled":25}],31:[function(require,module,exports){
+},{"../config":4,"./flag":15,"./getProperties":22,"./isProxyEnabled":26}],32:[function(require,module,exports){
 /*!
  * Chai - test utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -9325,7 +9450,7 @@ module.exports = function test(obj, args) {
   return negate ? !expr : expr;
 };
 
-},{"./flag":15}],32:[function(require,module,exports){
+},{"./flag":15}],33:[function(require,module,exports){
 /*!
  * Chai - transferFlags utility
  * Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
@@ -9372,7 +9497,7 @@ module.exports = function transferFlags(assertion, object, includeAll) {
   }
 };
 
-},{}],33:[function(require,module,exports){
+},{}],34:[function(require,module,exports){
 /*!
  * assertion-error
  * Copyright(c) 2013 Jake Luer <jake@qualiancy.com>
@@ -9490,7 +9615,7 @@ AssertionError.prototype.toJSON = function (stack) {
   return props;
 };
 
-},{}],34:[function(require,module,exports){
+},{}],35:[function(require,module,exports){
 'use strict';
 
 /* !
@@ -9664,7 +9789,7 @@ module.exports = {
   getConstructorName: getConstructorName,
 };
 
-},{}],35:[function(require,module,exports){
+},{}],36:[function(require,module,exports){
 'use strict';
 /* globals Symbol: false, Uint8Array: false, WeakMap: false */
 /*!
@@ -10121,7 +10246,7 @@ function isPrimitive(value) {
   return value === null || typeof value !== 'object';
 }
 
-},{"type-detect":38}],36:[function(require,module,exports){
+},{"type-detect":39}],37:[function(require,module,exports){
 'use strict';
 
 /* !
@@ -10167,7 +10292,7 @@ function getFuncName(aFunc) {
 
 module.exports = getFuncName;
 
-},{}],37:[function(require,module,exports){
+},{}],38:[function(require,module,exports){
 'use strict';
 
 /* !
@@ -10246,13 +10371,20 @@ function parsePath(path) {
   var str = path.replace(/([^\\])\[/g, '$1.[');
   var parts = str.match(/(\\\.|[^.]+?)+/g);
   return parts.map(function mapMatches(value) {
+    if (
+      value === 'constructor' ||
+      value === '__proto__' ||
+      value === 'prototype'
+    ) {
+      return {};
+    }
     var regexp = /^\[(\d+)\]$/;
     var mArr = regexp.exec(value);
     var parsed = null;
     if (mArr) {
       parsed = { i: parseFloat(mArr[1]) };
     } else {
-      parsed = { p: value.replace(/\\([.\[\]])/g, '$1') };
+      parsed = { p: value.replace(/\\([.[\]])/g, '$1') };
     }
 
     return parsed;
@@ -10277,7 +10409,7 @@ function parsePath(path) {
 function internalGetPathValue(obj, parsed, pathDepth) {
   var temporaryValue = obj;
   var res = null;
-  pathDepth = (typeof pathDepth === 'undefined' ? parsed.length : pathDepth);
+  pathDepth = typeof pathDepth === 'undefined' ? parsed.length : pathDepth;
 
   for (var i = 0; i < pathDepth; i++) {
     var part = parsed[i];
@@ -10288,7 +10420,7 @@ function internalGetPathValue(obj, parsed, pathDepth) {
         temporaryValue = temporaryValue[part.p];
       }
 
-      if (i === (pathDepth - 1)) {
+      if (i === pathDepth - 1) {
         res = temporaryValue;
       }
     }
@@ -10322,7 +10454,7 @@ function internalSetPathValue(obj, val, parsed) {
     part = parsed[i];
 
     // If it's the last part of the path, we set the 'propName' value with the property name
-    if (i === (pathDepth - 1)) {
+    if (i === pathDepth - 1) {
       propName = typeof part.p === 'undefined' ? part.i : part.p;
       // Now we set the property with the name held by 'propName' on object with the desired val
       tempObj[propName] = val;
@@ -10369,7 +10501,10 @@ function getPathInfo(obj, path) {
   var parsed = parsePath(path);
   var last = parsed[parsed.length - 1];
   var info = {
-    parent: parsed.length > 1 ? internalGetPathValue(obj, parsed, parsed.length - 1) : obj,
+    parent:
+      parsed.length > 1 ?
+        internalGetPathValue(obj, parsed, parsed.length - 1) :
+        obj,
     name: last.p || last.i,
     value: internalGetPathValue(obj, parsed),
   };
@@ -10460,7 +10595,7 @@ module.exports = {
   setPathValue: setPathValue,
 };
 
-},{}],38:[function(require,module,exports){
+},{}],39:[function(require,module,exports){
 (function (global, factory) {
 	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
 	typeof define === 'function' && define.amd ? define(factory) :
diff --git a/test/vendor/mocha.js b/test/vendor/mocha.js
index 159b647..2c8a9c3 100644
--- a/test/vendor/mocha.js
+++ b/test/vendor/mocha.js
@@ -1,18397 +1,30844 @@
-(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
-(function (process,global){
-'use strict';
-
-/* eslint no-unused-vars: off */
-/* eslint-env commonjs */
-
-/**
- * Shim process.stdout.
- */
-
-process.stdout = require('browser-stdout')({label: false});
-
-var Mocha = require('./lib/mocha');
-
-/**
- * Create a Mocha instance.
- *
- * @return {undefined}
- */
-
-var mocha = new Mocha({reporter: 'html'});
-
-/**
- * Save timer references to avoid Sinon interfering (see GH-237).
- */
-
-var Date = global.Date;
-var setTimeout = global.setTimeout;
-var setInterval = global.setInterval;
-var clearTimeout = global.clearTimeout;
-var clearInterval = global.clearInterval;
-
-var uncaughtExceptionHandlers = [];
-
-var originalOnerrorHandler = global.onerror;
-
-/**
- * Remove uncaughtException listener.
- * Revert to original onerror handler if previously defined.
- */
-
-process.removeListener = function(e, fn) {
-  if (e === 'uncaughtException') {
-    if (originalOnerrorHandler) {
-      global.onerror = originalOnerrorHandler;
-    } else {
-      global.onerror = function() {};
-    }
-    var i = uncaughtExceptionHandlers.indexOf(fn);
-    if (i !== -1) {
-      uncaughtExceptionHandlers.splice(i, 1);
-    }
-  }
-};
-
-/**
- * Implements listenerCount for 'uncaughtException'.
- */
-
-process.listenerCount = function(name) {
-  if (name === 'uncaughtException') {
-    return uncaughtExceptionHandlers.length;
-  }
-  return 0;
-};
-
-/**
- * Implements uncaughtException listener.
- */
-
-process.on = function(e, fn) {
-  if (e === 'uncaughtException') {
-    global.onerror = function(err, url, line) {
-      fn(new Error(err + ' (' + url + ':' + line + ')'));
-      return !mocha.options.allowUncaught;
-    };
-    uncaughtExceptionHandlers.push(fn);
-  }
-};
-
-// The BDD UI is registered by default, but no UI will be functional in the
-// browser without an explicit call to the overridden `mocha.ui` (see below).
-// Ensure that this default UI does not expose its methods to the global scope.
-mocha.suite.removeAllListeners('pre-require');
-
-var immediateQueue = [];
-var immediateTimeout;
-
-function timeslice() {
-  var immediateStart = new Date().getTime();
-  while (immediateQueue.length && new Date().getTime() - immediateStart < 100) {
-    immediateQueue.shift()();
-  }
-  if (immediateQueue.length) {
-    immediateTimeout = setTimeout(timeslice, 0);
-  } else {
-    immediateTimeout = null;
-  }
-}
-
-/**
- * High-performance override of Runner.immediately.
- */
-
-Mocha.Runner.immediately = function(callback) {
-  immediateQueue.push(callback);
-  if (!immediateTimeout) {
-    immediateTimeout = setTimeout(timeslice, 0);
-  }
-};
-
-/**
- * Function to allow assertion libraries to throw errors directly into mocha.
- * This is useful when running tests in a browser because window.onerror will
- * only receive the 'message' attribute of the Error.
- */
-mocha.throwError = function(err) {
-  uncaughtExceptionHandlers.forEach(function(fn) {
-    fn(err);
-  });
-  throw err;
-};
-
-/**
- * Override ui to ensure that the ui functions are initialized.
- * Normally this would happen in Mocha.prototype.loadFiles.
- */
-
-mocha.ui = function(ui) {
-  Mocha.prototype.ui.call(this, ui);
-  this.suite.emit('pre-require', global, null, this);
-  return this;
-};
-
-/**
- * Setup mocha with the given setting options.
- */
-
-mocha.setup = function(opts) {
-  if (typeof opts === 'string') {
-    opts = {ui: opts};
-  }
-  for (var opt in opts) {
-    if (Object.prototype.hasOwnProperty.call(opts, opt)) {
-      this[opt](opts[opt]);
-    }
-  }
-  return this;
-};
-
-/**
- * Run mocha, returning the Runner.
- */
-
-mocha.run = function(fn) {
-  var options = mocha.options;
-  mocha.globals('location');
-
-  var query = Mocha.utils.parseQuery(global.location.search || '');
-  if (query.grep) {
-    mocha.grep(query.grep);
-  }
-  if (query.fgrep) {
-    mocha.fgrep(query.fgrep);
-  }
-  if (query.invert) {
-    mocha.invert();
-  }
-
-  return Mocha.prototype.run.call(mocha, function(err) {
-    // The DOM Document is not available in Web Workers.
-    var document = global.document;
-    if (
-      document &&
-      document.getElementById('mocha') &&
-      options.noHighlighting !== true
-    ) {
-      Mocha.utils.highlightTags('code');
-    }
-    if (fn) {
-      fn(err);
-    }
-  });
-};
-
-/**
- * Expose the process shim.
- * https://github.com/mochajs/mocha/pull/916
- */
-
-Mocha.process = process;
-
-/**
- * Expose mocha.
- */
-
-global.Mocha = Mocha;
-global.mocha = mocha;
-
-// this allows test/acceptance/required-tokens.js to pass; thus,
-// you can now do `const describe = require('mocha').describe` in a
-// browser context (assuming browserification).  should fix #880
-module.exports = global;
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./lib/mocha":14,"_process":67,"browser-stdout":41}],2:[function(require,module,exports){
-(function (global){
-'use strict';
-
-/**
- * Web Notifications module.
- * @module Growl
- */
-
-/**
- * Save timer references to avoid Sinon interfering (see GH-237).
- */
-var Date = global.Date;
-var setTimeout = global.setTimeout;
-var EVENT_RUN_END = require('../runner').constants.EVENT_RUN_END;
-var isBrowser = require('../utils').isBrowser;
-
-/**
- * Checks if browser notification support exists.
- *
- * @public
- * @see {@link https://caniuse.com/#feat=notifications|Browser support (notifications)}
- * @see {@link https://caniuse.com/#feat=promises|Browser support (promises)}
- * @see {@link Mocha#growl}
- * @see {@link Mocha#isGrowlCapable}
- * @return {boolean} whether browser notification support exists
- */
-exports.isCapable = function() {
-  var hasNotificationSupport = 'Notification' in window;
-  var hasPromiseSupport = typeof Promise === 'function';
-  return isBrowser() && hasNotificationSupport && hasPromiseSupport;
-};
-
-/**
- * Implements browser notifications as a pseudo-reporter.
- *
- * @public
- * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/notification|Notification API}
- * @see {@link https://developers.google.com/web/fundamentals/push-notifications/display-a-notification|Displaying a Notification}
- * @see {@link Growl#isPermitted}
- * @see {@link Mocha#_growl}
- * @param {Runner} runner - Runner instance.
- */
-exports.notify = function(runner) {
-  var promise = isPermitted();
-
-  /**
-   * Attempt notification.
-   */
-  var sendNotification = function() {
-    // If user hasn't responded yet... "No notification for you!" (Seinfeld)
-    Promise.race([promise, Promise.resolve(undefined)])
-      .then(canNotify)
-      .then(function() {
-        display(runner);
-      })
-      .catch(notPermitted);
-  };
-
-  runner.once(EVENT_RUN_END, sendNotification);
-};
-
-/**
- * Checks if browser notification is permitted by user.
- *
- * @private
- * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/Notification/permission|Notification.permission}
- * @see {@link Mocha#growl}
- * @see {@link Mocha#isGrowlPermitted}
- * @returns {Promise<boolean>} promise determining if browser notification
- *     permissible when fulfilled.
- */
-function isPermitted() {
-  var permitted = {
-    granted: function allow() {
-      return Promise.resolve(true);
-    },
-    denied: function deny() {
-      return Promise.resolve(false);
-    },
-    default: function ask() {
-      return Notification.requestPermission().then(function(permission) {
-        return permission === 'granted';
-      });
-    }
-  };
-
-  return permitted[Notification.permission]();
-}
-
-/**
- * @summary
- * Determines if notification should proceed.
- *
- * @description
- * Notification shall <strong>not</strong> proceed unless `value` is true.
- *
- * `value` will equal one of:
- * <ul>
- *   <li><code>true</code> (from `isPermitted`)</li>
- *   <li><code>false</code> (from `isPermitted`)</li>
- *   <li><code>undefined</code> (from `Promise.race`)</li>
- * </ul>
- *
- * @private
- * @param {boolean|undefined} value - Determines if notification permissible.
- * @returns {Promise<undefined>} Notification can proceed
- */
-function canNotify(value) {
-  if (!value) {
-    var why = value === false ? 'blocked' : 'unacknowledged';
-    var reason = 'not permitted by user (' + why + ')';
-    return Promise.reject(new Error(reason));
-  }
-  return Promise.resolve();
-}
-
-/**
- * Displays the notification.
- *
- * @private
- * @param {Runner} runner - Runner instance.
- */
-function display(runner) {
-  var stats = runner.stats;
-  var symbol = {
-    cross: '\u274C',
-    tick: '\u2705'
-  };
-  var logo = require('../../package').notifyLogo;
-  var _message;
-  var message;
-  var title;
-
-  if (stats.failures) {
-    _message = stats.failures + ' of ' + stats.tests + ' tests failed';
-    message = symbol.cross + ' ' + _message;
-    title = 'Failed';
-  } else {
-    _message = stats.passes + ' tests passed in ' + stats.duration + 'ms';
-    message = symbol.tick + ' ' + _message;
-    title = 'Passed';
-  }
-
-  // Send notification
-  var options = {
-    badge: logo,
-    body: message,
-    dir: 'ltr',
-    icon: logo,
-    lang: 'en-US',
-    name: 'mocha',
-    requireInteraction: false,
-    timestamp: Date.now()
-  };
-  var notification = new Notification(title, options);
-
-  // Autoclose after brief delay (makes various browsers act same)
-  var FORCE_DURATION = 4000;
-  setTimeout(notification.close.bind(notification), FORCE_DURATION);
-}
-
-/**
- * As notifications are tangential to our purpose, just log the error.
- *
- * @private
- * @param {Error} err - Why notification didn't happen.
- */
-function notPermitted(err) {
-  console.error('notification error:', err.message);
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../../package":90,"../runner":34,"../utils":38}],3:[function(require,module,exports){
-'use strict';
-
-/**
- * Expose `Progress`.
- */
-
-module.exports = Progress;
-
-/**
- * Initialize a new `Progress` indicator.
- */
-function Progress() {
-  this.percent = 0;
-  this.size(0);
-  this.fontSize(11);
-  this.font('helvetica, arial, sans-serif');
-}
-
-/**
- * Set progress size to `size`.
- *
- * @public
- * @param {number} size
- * @return {Progress} Progress instance.
- */
-Progress.prototype.size = function(size) {
-  this._size = size;
-  return this;
-};
-
-/**
- * Set text to `text`.
- *
- * @public
- * @param {string} text
- * @return {Progress} Progress instance.
- */
-Progress.prototype.text = function(text) {
-  this._text = text;
-  return this;
-};
-
-/**
- * Set font size to `size`.
- *
- * @public
- * @param {number} size
- * @return {Progress} Progress instance.
- */
-Progress.prototype.fontSize = function(size) {
-  this._fontSize = size;
-  return this;
-};
-
-/**
- * Set font to `family`.
- *
- * @param {string} family
- * @return {Progress} Progress instance.
- */
-Progress.prototype.font = function(family) {
-  this._font = family;
-  return this;
-};
-
-/**
- * Update percentage to `n`.
- *
- * @param {number} n
- * @return {Progress} Progress instance.
- */
-Progress.prototype.update = function(n) {
-  this.percent = n;
-  return this;
-};
-
-/**
- * Draw on `ctx`.
- *
- * @param {CanvasRenderingContext2d} ctx
- * @return {Progress} Progress instance.
- */
-Progress.prototype.draw = function(ctx) {
-  try {
-    var percent = Math.min(this.percent, 100);
-    var size = this._size;
-    var half = size / 2;
-    var x = half;
-    var y = half;
-    var rad = half - 1;
-    var fontSize = this._fontSize;
-
-    ctx.font = fontSize + 'px ' + this._font;
-
-    var angle = Math.PI * 2 * (percent / 100);
-    ctx.clearRect(0, 0, size, size);
-
-    // outer circle
-    ctx.strokeStyle = '#9f9f9f';
-    ctx.beginPath();
-    ctx.arc(x, y, rad, 0, angle, false);
-    ctx.stroke();
-
-    // inner circle
-    ctx.strokeStyle = '#eee';
-    ctx.beginPath();
-    ctx.arc(x, y, rad - 1, 0, angle, true);
-    ctx.stroke();
-
-    // text
-    var text = this._text || (percent | 0) + '%';
-    var w = ctx.measureText(text).width;
-
-    ctx.fillText(text, x - w / 2 + 1, y + fontSize / 2 - 1);
-  } catch (ignore) {
-    // don't fail if we can't render progress
-  }
-  return this;
-};
-
-},{}],4:[function(require,module,exports){
-(function (global){
-'use strict';
-
-exports.isatty = function isatty() {
-  return true;
-};
-
-exports.getWindowSize = function getWindowSize() {
-  if ('innerHeight' in global) {
-    return [global.innerHeight, global.innerWidth];
-  }
-  // In a Web Worker, the DOM Window is not available.
-  return [640, 480];
-};
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],5:[function(require,module,exports){
-'use strict';
-/**
- * @module Context
- */
-/**
- * Expose `Context`.
- */
-
-module.exports = Context;
-
-/**
- * Initialize a new `Context`.
- *
- * @private
- */
-function Context() {}
-
-/**
- * Set or get the context `Runnable` to `runnable`.
- *
- * @private
- * @param {Runnable} runnable
- * @return {Context} context
- */
-Context.prototype.runnable = function(runnable) {
-  if (!arguments.length) {
-    return this._runnable;
-  }
-  this.test = this._runnable = runnable;
-  return this;
-};
-
-/**
- * Set or get test timeout `ms`.
- *
- * @private
- * @param {number} ms
- * @return {Context} self
- */
-Context.prototype.timeout = function(ms) {
-  if (!arguments.length) {
-    return this.runnable().timeout();
-  }
-  this.runnable().timeout(ms);
-  return this;
-};
-
-/**
- * Set or get test slowness threshold `ms`.
- *
- * @private
- * @param {number} ms
- * @return {Context} self
- */
-Context.prototype.slow = function(ms) {
-  if (!arguments.length) {
-    return this.runnable().slow();
-  }
-  this.runnable().slow(ms);
-  return this;
-};
-
-/**
- * Mark a test as skipped.
- *
- * @private
- * @throws Pending
- */
-Context.prototype.skip = function() {
-  this.runnable().skip();
-};
-
-/**
- * Set or get a number of allowed retries on failed tests
- *
- * @private
- * @param {number} n
- * @return {Context} self
- */
-Context.prototype.retries = function(n) {
-  if (!arguments.length) {
-    return this.runnable().retries();
-  }
-  this.runnable().retries(n);
-  return this;
-};
-
-},{}],6:[function(require,module,exports){
-'use strict';
-
-var format = require('util').format;
-
-/**
- * Factory functions to create throwable error objects
- * @module Errors
- */
-
-/**
- * When Mocha throw exceptions (or otherwise errors), it attempts to assign a
- * `code` property to the `Error` object, for easier handling.  These are the
- * potential values of `code`.
- */
-var constants = {
-  /**
-   * An unrecoverable error.
-   */
-  FATAL: 'ERR_MOCHA_FATAL',
-
-  /**
-   * The type of an argument to a function call is invalid
-   */
-  INVALID_ARG_TYPE: 'ERR_MOCHA_INVALID_ARG_TYPE',
-
-  /**
-   * The value of an argument to a function call is invalid
-   */
-  INVALID_ARG_VALUE: 'ERR_MOCHA_INVALID_ARG_VALUE',
-
-  /**
-   * Something was thrown, but it wasn't an `Error`
-   */
-  INVALID_EXCEPTION: 'ERR_MOCHA_INVALID_EXCEPTION',
-
-  /**
-   * An interface (e.g., `Mocha.interfaces`) is unknown or invalid
-   */
-  INVALID_INTERFACE: 'ERR_MOCHA_INVALID_INTERFACE',
-
-  /**
-   * A reporter (.e.g, `Mocha.reporters`) is unknown or invalid
-   */
-  INVALID_REPORTER: 'ERR_MOCHA_INVALID_REPORTER',
-
-  /**
-   * `done()` was called twice in a `Test` or `Hook` callback
-   */
-  MULTIPLE_DONE: 'ERR_MOCHA_MULTIPLE_DONE',
-
-  /**
-   * No files matched the pattern provided by the user
-   */
-  NO_FILES_MATCH_PATTERN: 'ERR_MOCHA_NO_FILES_MATCH_PATTERN',
-
-  /**
-   * Known, but unsupported behavior of some kind
-   */
-  UNSUPPORTED: 'ERR_MOCHA_UNSUPPORTED',
-
-  /**
-   * Invalid state transition occuring in `Mocha` instance
-   */
-  INSTANCE_ALREADY_RUNNING: 'ERR_MOCHA_INSTANCE_ALREADY_RUNNING',
-
-  /**
-   * Invalid state transition occuring in `Mocha` instance
-   */
-  INSTANCE_ALREADY_DISPOSED: 'ERR_MOCHA_INSTANCE_ALREADY_DISPOSED',
-
-  /**
-   * Use of `only()` w/ `--forbid-only` results in this error.
-   */
-  FORBIDDEN_EXCLUSIVITY: 'ERR_MOCHA_FORBIDDEN_EXCLUSIVITY'
-};
-
-/**
- * Creates an error object to be thrown when no files to be tested could be found using specified pattern.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @param {string} pattern - User-specified argument value.
- * @returns {Error} instance detailing the error condition
- */
-function createNoFilesMatchPatternError(message, pattern) {
-  var err = new Error(message);
-  err.code = constants.NO_FILES_MATCH_PATTERN;
-  err.pattern = pattern;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when the reporter specified in the options was not found.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @param {string} reporter - User-specified reporter value.
- * @returns {Error} instance detailing the error condition
- */
-function createInvalidReporterError(message, reporter) {
-  var err = new TypeError(message);
-  err.code = constants.INVALID_REPORTER;
-  err.reporter = reporter;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when the interface specified in the options was not found.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @param {string} ui - User-specified interface value.
- * @returns {Error} instance detailing the error condition
- */
-function createInvalidInterfaceError(message, ui) {
-  var err = new Error(message);
-  err.code = constants.INVALID_INTERFACE;
-  err.interface = ui;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when a behavior, option, or parameter is unsupported.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @returns {Error} instance detailing the error condition
- */
-function createUnsupportedError(message) {
-  var err = new Error(message);
-  err.code = constants.UNSUPPORTED;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when an argument is missing.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @param {string} argument - Argument name.
- * @param {string} expected - Expected argument datatype.
- * @returns {Error} instance detailing the error condition
- */
-function createMissingArgumentError(message, argument, expected) {
-  return createInvalidArgumentTypeError(message, argument, expected);
-}
-
-/**
- * Creates an error object to be thrown when an argument did not use the supported type
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @param {string} argument - Argument name.
- * @param {string} expected - Expected argument datatype.
- * @returns {Error} instance detailing the error condition
- */
-function createInvalidArgumentTypeError(message, argument, expected) {
-  var err = new TypeError(message);
-  err.code = constants.INVALID_ARG_TYPE;
-  err.argument = argument;
-  err.expected = expected;
-  err.actual = typeof argument;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when an argument did not use the supported value
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @param {string} argument - Argument name.
- * @param {string} value - Argument value.
- * @param {string} [reason] - Why value is invalid.
- * @returns {Error} instance detailing the error condition
- */
-function createInvalidArgumentValueError(message, argument, value, reason) {
-  var err = new TypeError(message);
-  err.code = constants.INVALID_ARG_VALUE;
-  err.argument = argument;
-  err.value = value;
-  err.reason = typeof reason !== 'undefined' ? reason : 'is invalid';
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when an exception was caught, but the `Error` is falsy or undefined.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @returns {Error} instance detailing the error condition
- */
-function createInvalidExceptionError(message, value) {
-  var err = new Error(message);
-  err.code = constants.INVALID_EXCEPTION;
-  err.valueType = typeof value;
-  err.value = value;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when an unrecoverable error occurs.
- *
- * @public
- * @param {string} message - Error message to be displayed.
- * @returns {Error} instance detailing the error condition
- */
-function createFatalError(message, value) {
-  var err = new Error(message);
-  err.code = constants.FATAL;
-  err.valueType = typeof value;
-  err.value = value;
-  return err;
-}
-
-/**
- * Dynamically creates a plugin-type-specific error based on plugin type
- * @param {string} message - Error message
- * @param {"reporter"|"interface"} pluginType - Plugin type. Future: expand as needed
- * @param {string} [pluginId] - Name/path of plugin, if any
- * @throws When `pluginType` is not known
- * @public
- * @returns {Error}
- */
-function createInvalidPluginError(message, pluginType, pluginId) {
-  switch (pluginType) {
-    case 'reporter':
-      return createInvalidReporterError(message, pluginId);
-    case 'interface':
-      return createInvalidInterfaceError(message, pluginId);
-    default:
-      throw new Error('unknown pluginType "' + pluginType + '"');
-  }
-}
-
-/**
- * Creates an error object to be thrown when a mocha object's `run` method is executed while it is already disposed.
- * @param {string} message The error message to be displayed.
- * @param {boolean} cleanReferencesAfterRun the value of `cleanReferencesAfterRun`
- * @param {Mocha} instance the mocha instance that throw this error
- */
-function createMochaInstanceAlreadyDisposedError(
-  message,
-  cleanReferencesAfterRun,
-  instance
-) {
-  var err = new Error(message);
-  err.code = constants.INSTANCE_ALREADY_DISPOSED;
-  err.cleanReferencesAfterRun = cleanReferencesAfterRun;
-  err.instance = instance;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when a mocha object's `run` method is called while a test run is in progress.
- * @param {string} message The error message to be displayed.
- */
-function createMochaInstanceAlreadyRunningError(message, instance) {
-  var err = new Error(message);
-  err.code = constants.INSTANCE_ALREADY_RUNNING;
-  err.instance = instance;
-  return err;
-}
-
-/*
- * Creates an error object to be thrown when done() is called multiple times in a test
- *
- * @public
- * @param {Runnable} runnable - Original runnable
- * @param {Error} [originalErr] - Original error, if any
- * @returns {Error} instance detailing the error condition
- */
-function createMultipleDoneError(runnable, originalErr) {
-  var title;
-  try {
-    title = format('<%s>', runnable.fullTitle());
-    if (runnable.parent.root) {
-      title += ' (of root suite)';
-    }
-  } catch (ignored) {
-    title = format('<%s> (of unknown suite)', runnable.title);
-  }
-  var message = format(
-    'done() called multiple times in %s %s',
-    runnable.type ? runnable.type : 'unknown runnable',
-    title
-  );
-  if (runnable.file) {
-    message += format(' of file %s', runnable.file);
-  }
-  if (originalErr) {
-    message += format('; in addition, done() received error: %s', originalErr);
-  }
-
-  var err = new Error(message);
-  err.code = constants.MULTIPLE_DONE;
-  err.valueType = typeof originalErr;
-  err.value = originalErr;
-  return err;
-}
-
-/**
- * Creates an error object to be thrown when `.only()` is used with
- * `--forbid-only`.
- * @public
- * @param {Mocha} mocha - Mocha instance
- * @returns {Error} Error with code {@link constants.FORBIDDEN_EXCLUSIVITY}
- */
-function createForbiddenExclusivityError(mocha) {
-  var err = new Error(
-    mocha.isWorker
-      ? '`.only` is not supported in parallel mode'
-      : '`.only` forbidden by --forbid-only'
-  );
-  err.code = constants.FORBIDDEN_EXCLUSIVITY;
-  return err;
-}
-
-module.exports = {
-  createInvalidArgumentTypeError: createInvalidArgumentTypeError,
-  createInvalidArgumentValueError: createInvalidArgumentValueError,
-  createInvalidExceptionError: createInvalidExceptionError,
-  createInvalidInterfaceError: createInvalidInterfaceError,
-  createInvalidReporterError: createInvalidReporterError,
-  createMissingArgumentError: createMissingArgumentError,
-  createNoFilesMatchPatternError: createNoFilesMatchPatternError,
-  createUnsupportedError: createUnsupportedError,
-  createInvalidPluginError: createInvalidPluginError,
-  createMochaInstanceAlreadyDisposedError: createMochaInstanceAlreadyDisposedError,
-  createMochaInstanceAlreadyRunningError: createMochaInstanceAlreadyRunningError,
-  createFatalError: createFatalError,
-  createMultipleDoneError: createMultipleDoneError,
-  createForbiddenExclusivityError: createForbiddenExclusivityError,
-  constants: constants
-};
-
-},{"util":89}],7:[function(require,module,exports){
-'use strict';
-
-var Runnable = require('./runnable');
-var inherits = require('./utils').inherits;
-
-/**
- * Expose `Hook`.
- */
-
-module.exports = Hook;
-
-/**
- * Initialize a new `Hook` with the given `title` and callback `fn`
- *
- * @class
- * @extends Runnable
- * @param {String} title
- * @param {Function} fn
- */
-function Hook(title, fn) {
-  Runnable.call(this, title, fn);
-  this.type = 'hook';
-}
-
-/**
- * Inherit from `Runnable.prototype`.
- */
-inherits(Hook, Runnable);
-
-/**
- * Resets the state for a next run.
- */
-Hook.prototype.reset = function() {
-  Runnable.prototype.reset.call(this);
-  delete this._error;
-};
-
-/**
- * Get or set the test `err`.
- *
- * @memberof Hook
- * @public
- * @param {Error} err
- * @return {Error}
- */
-Hook.prototype.error = function(err) {
-  if (!arguments.length) {
-    err = this._error;
-    this._error = null;
-    return err;
-  }
-
-  this._error = err;
-};
-
-/**
- * Returns an object suitable for IPC.
- * Functions are represented by keys beginning with `$$`.
- * @private
- * @returns {Object}
- */
-Hook.prototype.serialize = function serialize() {
-  return {
-    $$isPending: this.isPending(),
-    $$titlePath: this.titlePath(),
-    ctx: {
-      currentTest: {
-        title: this.ctx && this.ctx.currentTest && this.ctx.currentTest.title
-      }
-    },
-    parent: {
-      root: this.parent.root,
-      title: this.parent.title
-    },
-    title: this.title,
-    type: this.type
-  };
-};
-
-},{"./runnable":33,"./utils":38}],8:[function(require,module,exports){
-'use strict';
-
-var Test = require('../test');
-var EVENT_FILE_PRE_REQUIRE = require('../suite').constants
-  .EVENT_FILE_PRE_REQUIRE;
-
-/**
- * BDD-style interface:
- *
- *      describe('Array', function() {
- *        describe('#indexOf()', function() {
- *          it('should return -1 when not present', function() {
- *            // ...
- *          });
- *
- *          it('should return the index when present', function() {
- *            // ...
- *          });
- *        });
- *      });
- *
- * @param {Suite} suite Root suite.
- */
-module.exports = function bddInterface(suite) {
-  var suites = [suite];
-
-  suite.on(EVENT_FILE_PRE_REQUIRE, function(context, file, mocha) {
-    var common = require('./common')(suites, context, mocha);
-
-    context.before = common.before;
-    context.after = common.after;
-    context.beforeEach = common.beforeEach;
-    context.afterEach = common.afterEach;
-    context.run = mocha.options.delay && common.runWithSuite(suite);
-    /**
-     * Describe a "suite" with the given `title`
-     * and callback `fn` containing nested suites
-     * and/or tests.
-     */
-
-    context.describe = context.context = function(title, fn) {
-      return common.suite.create({
-        title: title,
-        file: file,
-        fn: fn
-      });
-    };
-
-    /**
-     * Pending describe.
-     */
-
-    context.xdescribe = context.xcontext = context.describe.skip = function(
-      title,
-      fn
-    ) {
-      return common.suite.skip({
-        title: title,
-        file: file,
-        fn: fn
-      });
-    };
-
-    /**
-     * Exclusive suite.
-     */
-
-    context.describe.only = function(title, fn) {
-      return common.suite.only({
-        title: title,
-        file: file,
-        fn: fn
-      });
-    };
-
-    /**
-     * Describe a specification or test-case
-     * with the given `title` and callback `fn`
-     * acting as a thunk.
-     */
-
-    context.it = context.specify = function(title, fn) {
-      var suite = suites[0];
-      if (suite.isPending()) {
-        fn = null;
-      }
-      var test = new Test(title, fn);
-      test.file = file;
-      suite.addTest(test);
-      return test;
-    };
-
-    /**
-     * Exclusive test-case.
-     */
-
-    context.it.only = function(title, fn) {
-      return common.test.only(mocha, context.it(title, fn));
-    };
-
-    /**
-     * Pending test case.
-     */
-
-    context.xit = context.xspecify = context.it.skip = function(title) {
-      return context.it(title);
-    };
-
-    /**
-     * Number of attempts to retry.
-     */
-    context.it.retries = function(n) {
-      context.retries(n);
-    };
-  });
-};
-
-module.exports.description = 'BDD or RSpec style [default]';
-
-},{"../suite":36,"../test":37,"./common":9}],9:[function(require,module,exports){
-'use strict';
-
-var Suite = require('../suite');
-var errors = require('../errors');
-var createMissingArgumentError = errors.createMissingArgumentError;
-var createUnsupportedError = errors.createUnsupportedError;
-var createForbiddenExclusivityError = errors.createForbiddenExclusivityError;
-
-/**
- * Functions common to more than one interface.
- *
- * @param {Suite[]} suites
- * @param {Context} context
- * @param {Mocha} mocha
- * @return {Object} An object containing common functions.
- */
-module.exports = function(suites, context, mocha) {
-  /**
-   * Check if the suite should be tested.
-   *
-   * @private
-   * @param {Suite} suite - suite to check
-   * @returns {boolean}
-   */
-  function shouldBeTested(suite) {
-    return (
-      !mocha.options.grep ||
-      (mocha.options.grep &&
-        mocha.options.grep.test(suite.fullTitle()) &&
-        !mocha.options.invert)
-    );
-  }
-
-  return {
-    /**
-     * This is only present if flag --delay is passed into Mocha. It triggers
-     * root suite execution.
-     *
-     * @param {Suite} suite The root suite.
-     * @return {Function} A function which runs the root suite
-     */
-    runWithSuite: function runWithSuite(suite) {
-      return function run() {
-        suite.run();
-      };
-    },
-
-    /**
-     * Execute before running tests.
-     *
-     * @param {string} name
-     * @param {Function} fn
-     */
-    before: function(name, fn) {
-      suites[0].beforeAll(name, fn);
-    },
-
-    /**
-     * Execute after running tests.
-     *
-     * @param {string} name
-     * @param {Function} fn
-     */
-    after: function(name, fn) {
-      suites[0].afterAll(name, fn);
-    },
-
-    /**
-     * Execute before each test case.
-     *
-     * @param {string} name
-     * @param {Function} fn
-     */
-    beforeEach: function(name, fn) {
-      suites[0].beforeEach(name, fn);
-    },
-
-    /**
-     * Execute after each test case.
-     *
-     * @param {string} name
-     * @param {Function} fn
-     */
-    afterEach: function(name, fn) {
-      suites[0].afterEach(name, fn);
-    },
-
-    suite: {
-      /**
-       * Create an exclusive Suite; convenience function
-       * See docstring for create() below.
-       *
-       * @param {Object} opts
-       * @returns {Suite}
-       */
-      only: function only(opts) {
-        if (mocha.options.forbidOnly) {
-          throw createForbiddenExclusivityError(mocha);
-        }
-        opts.isOnly = true;
-        return this.create(opts);
-      },
-
-      /**
-       * Create a Suite, but skip it; convenience function
-       * See docstring for create() below.
-       *
-       * @param {Object} opts
-       * @returns {Suite}
-       */
-      skip: function skip(opts) {
-        opts.pending = true;
-        return this.create(opts);
-      },
-
-      /**
-       * Creates a suite.
-       *
-       * @param {Object} opts Options
-       * @param {string} opts.title Title of Suite
-       * @param {Function} [opts.fn] Suite Function (not always applicable)
-       * @param {boolean} [opts.pending] Is Suite pending?
-       * @param {string} [opts.file] Filepath where this Suite resides
-       * @param {boolean} [opts.isOnly] Is Suite exclusive?
-       * @returns {Suite}
-       */
-      create: function create(opts) {
-        var suite = Suite.create(suites[0], opts.title);
-        suite.pending = Boolean(opts.pending);
-        suite.file = opts.file;
-        suites.unshift(suite);
-        if (opts.isOnly) {
-          suite.markOnly();
-        }
-        if (
-          suite.pending &&
-          mocha.options.forbidPending &&
-          shouldBeTested(suite)
-        ) {
-          throw createUnsupportedError('Pending test forbidden');
-        }
-        if (typeof opts.fn === 'function') {
-          opts.fn.call(suite);
-          suites.shift();
-        } else if (typeof opts.fn === 'undefined' && !suite.pending) {
-          throw createMissingArgumentError(
-            'Suite "' +
-              suite.fullTitle() +
-              '" was defined but no callback was supplied. ' +
-              'Supply a callback or explicitly skip the suite.',
-            'callback',
-            'function'
-          );
-        } else if (!opts.fn && suite.pending) {
-          suites.shift();
-        }
-
-        return suite;
-      }
-    },
-
-    test: {
-      /**
-       * Exclusive test-case.
-       *
-       * @param {Object} mocha
-       * @param {Function} test
-       * @returns {*}
-       */
-      only: function(mocha, test) {
-        if (mocha.options.forbidOnly) {
-          throw createForbiddenExclusivityError(mocha);
-        }
-        test.markOnly();
-        return test;
-      },
-
-      /**
-       * Pending test case.
-       *
-       * @param {string} title
-       */
-      skip: function(title) {
-        context.test(title);
-      },
-
-      /**
-       * Number of retry attempts
-       *
-       * @param {number} n
-       */
-      retries: function(n) {
-        context.retries(n);
-      }
-    }
-  };
-};
-
-},{"../errors":6,"../suite":36}],10:[function(require,module,exports){
-'use strict';
-var Suite = require('../suite');
-var Test = require('../test');
-
-/**
- * Exports-style (as Node.js module) interface:
- *
- *     exports.Array = {
- *       '#indexOf()': {
- *         'should return -1 when the value is not present': function() {
- *
- *         },
- *
- *         'should return the correct index when the value is present': function() {
- *
- *         }
- *       }
- *     };
- *
- * @param {Suite} suite Root suite.
- */
-module.exports = function(suite) {
-  var suites = [suite];
-
-  suite.on(Suite.constants.EVENT_FILE_REQUIRE, visit);
-
-  function visit(obj, file) {
-    var suite;
-    for (var key in obj) {
-      if (typeof obj[key] === 'function') {
-        var fn = obj[key];
-        switch (key) {
-          case 'before':
-            suites[0].beforeAll(fn);
-            break;
-          case 'after':
-            suites[0].afterAll(fn);
-            break;
-          case 'beforeEach':
-            suites[0].beforeEach(fn);
-            break;
-          case 'afterEach':
-            suites[0].afterEach(fn);
-            break;
-          default:
-            var test = new Test(key, fn);
-            test.file = file;
-            suites[0].addTest(test);
-        }
-      } else {
-        suite = Suite.create(suites[0], key);
-        suites.unshift(suite);
-        visit(obj[key], file);
-        suites.shift();
-      }
-    }
-  }
-};
-
-module.exports.description = 'Node.js module ("exports") style';
-
-},{"../suite":36,"../test":37}],11:[function(require,module,exports){
-'use strict';
-
-exports.bdd = require('./bdd');
-exports.tdd = require('./tdd');
-exports.qunit = require('./qunit');
-exports.exports = require('./exports');
-
-},{"./bdd":8,"./exports":10,"./qunit":12,"./tdd":13}],12:[function(require,module,exports){
-'use strict';
-
-var Test = require('../test');
-var EVENT_FILE_PRE_REQUIRE = require('../suite').constants
-  .EVENT_FILE_PRE_REQUIRE;
-
-/**
- * QUnit-style interface:
- *
- *     suite('Array');
- *
- *     test('#length', function() {
- *       var arr = [1,2,3];
- *       ok(arr.length == 3);
- *     });
- *
- *     test('#indexOf()', function() {
- *       var arr = [1,2,3];
- *       ok(arr.indexOf(1) == 0);
- *       ok(arr.indexOf(2) == 1);
- *       ok(arr.indexOf(3) == 2);
- *     });
- *
- *     suite('String');
- *
- *     test('#length', function() {
- *       ok('foo'.length == 3);
- *     });
- *
- * @param {Suite} suite Root suite.
- */
-module.exports = function qUnitInterface(suite) {
-  var suites = [suite];
-
-  suite.on(EVENT_FILE_PRE_REQUIRE, function(context, file, mocha) {
-    var common = require('./common')(suites, context, mocha);
-
-    context.before = common.before;
-    context.after = common.after;
-    context.beforeEach = common.beforeEach;
-    context.afterEach = common.afterEach;
-    context.run = mocha.options.delay && common.runWithSuite(suite);
-    /**
-     * Describe a "suite" with the given `title`.
-     */
-
-    context.suite = function(title) {
-      if (suites.length > 1) {
-        suites.shift();
-      }
-      return common.suite.create({
-        title: title,
-        file: file,
-        fn: false
-      });
-    };
-
-    /**
-     * Exclusive Suite.
-     */
-
-    context.suite.only = function(title) {
-      if (suites.length > 1) {
-        suites.shift();
-      }
-      return common.suite.only({
-        title: title,
-        file: file,
-        fn: false
-      });
-    };
-
-    /**
-     * Describe a specification or test-case
-     * with the given `title` and callback `fn`
-     * acting as a thunk.
-     */
-
-    context.test = function(title, fn) {
-      var test = new Test(title, fn);
-      test.file = file;
-      suites[0].addTest(test);
-      return test;
-    };
-
-    /**
-     * Exclusive test-case.
-     */
-
-    context.test.only = function(title, fn) {
-      return common.test.only(mocha, context.test(title, fn));
-    };
-
-    context.test.skip = common.test.skip;
-    context.test.retries = common.test.retries;
-  });
-};
-
-module.exports.description = 'QUnit style';
-
-},{"../suite":36,"../test":37,"./common":9}],13:[function(require,module,exports){
-'use strict';
-
-var Test = require('../test');
-var EVENT_FILE_PRE_REQUIRE = require('../suite').constants
-  .EVENT_FILE_PRE_REQUIRE;
-
-/**
- * TDD-style interface:
- *
- *      suite('Array', function() {
- *        suite('#indexOf()', function() {
- *          suiteSetup(function() {
- *
- *          });
- *
- *          test('should return -1 when not present', function() {
- *
- *          });
- *
- *          test('should return the index when present', function() {
- *
- *          });
- *
- *          suiteTeardown(function() {
- *
- *          });
- *        });
- *      });
- *
- * @param {Suite} suite Root suite.
- */
-module.exports = function(suite) {
-  var suites = [suite];
-
-  suite.on(EVENT_FILE_PRE_REQUIRE, function(context, file, mocha) {
-    var common = require('./common')(suites, context, mocha);
-
-    context.setup = common.beforeEach;
-    context.teardown = common.afterEach;
-    context.suiteSetup = common.before;
-    context.suiteTeardown = common.after;
-    context.run = mocha.options.delay && common.runWithSuite(suite);
-
-    /**
-     * Describe a "suite" with the given `title` and callback `fn` containing
-     * nested suites and/or tests.
-     */
-    context.suite = function(title, fn) {
-      return common.suite.create({
-        title: title,
-        file: file,
-        fn: fn
-      });
-    };
-
-    /**
-     * Pending suite.
-     */
-    context.suite.skip = function(title, fn) {
-      return common.suite.skip({
-        title: title,
-        file: file,
-        fn: fn
-      });
-    };
-
-    /**
-     * Exclusive test-case.
-     */
-    context.suite.only = function(title, fn) {
-      return common.suite.only({
-        title: title,
-        file: file,
-        fn: fn
-      });
-    };
-
-    /**
-     * Describe a specification or test-case with the given `title` and
-     * callback `fn` acting as a thunk.
-     */
-    context.test = function(title, fn) {
-      var suite = suites[0];
-      if (suite.isPending()) {
-        fn = null;
-      }
-      var test = new Test(title, fn);
-      test.file = file;
-      suite.addTest(test);
-      return test;
-    };
-
-    /**
-     * Exclusive test-case.
-     */
-
-    context.test.only = function(title, fn) {
-      return common.test.only(mocha, context.test(title, fn));
-    };
-
-    context.test.skip = common.test.skip;
-    context.test.retries = common.test.retries;
-  });
-};
-
-module.exports.description =
-  'traditional "suite"/"test" instead of BDD\'s "describe"/"it"';
-
-},{"../suite":36,"../test":37,"./common":9}],14:[function(require,module,exports){
-(function (global){
-'use strict';
-
-/*!
- * mocha
- * Copyright(c) 2011 TJ Holowaychuk <tj@vision-media.ca>
- * MIT Licensed
- */
-
-var escapeRe = require('escape-string-regexp');
-var path = require('path');
-var builtinReporters = require('./reporters');
-var growl = require('./nodejs/growl');
-var utils = require('./utils');
-var mocharc = require('./mocharc.json');
-var errors = require('./errors');
-var Suite = require('./suite');
-var esmUtils = utils.supportsEsModules(true)
-  ? require('./esm-utils')
-  : undefined;
-var createStatsCollector = require('./stats-collector');
-var createInvalidReporterError = errors.createInvalidReporterError;
-var createInvalidInterfaceError = errors.createInvalidInterfaceError;
-var createMochaInstanceAlreadyDisposedError =
-  errors.createMochaInstanceAlreadyDisposedError;
-var createMochaInstanceAlreadyRunningError =
-  errors.createMochaInstanceAlreadyRunningError;
-var EVENT_FILE_PRE_REQUIRE = Suite.constants.EVENT_FILE_PRE_REQUIRE;
-var EVENT_FILE_POST_REQUIRE = Suite.constants.EVENT_FILE_POST_REQUIRE;
-var EVENT_FILE_REQUIRE = Suite.constants.EVENT_FILE_REQUIRE;
-var sQuote = utils.sQuote;
-var debug = require('debug')('mocha:mocha');
-
-exports = module.exports = Mocha;
-
-/**
- * A Mocha instance is a finite state machine.
- * These are the states it can be in.
- */
-var mochaStates = utils.defineConstants({
-  /**
-   * Initial state of the mocha instance
-   */
-  INIT: 'init',
-  /**
-   * Mocha instance is running tests
-   */
-  RUNNING: 'running',
-  /**
-   * Mocha instance is done running tests and references to test functions and hooks are cleaned.
-   * You can reset this state by unloading the test files.
-   */
-  REFERENCES_CLEANED: 'referencesCleaned',
-  /**
-   * Mocha instance is disposed and can no longer be used.
-   */
-  DISPOSED: 'disposed'
-});
-
-/**
- * To require local UIs and reporters when running in node.
- */
-
-if (!utils.isBrowser() && typeof module.paths !== 'undefined') {
-  var cwd = utils.cwd();
-  module.paths.push(cwd, path.join(cwd, 'node_modules'));
-}
-
-/**
- * Expose internals.
- */
-
-exports.utils = utils;
-exports.interfaces = require('./interfaces');
-/**
- * @public
- * @memberof Mocha
- */
-exports.reporters = builtinReporters;
-exports.Runnable = require('./runnable');
-exports.Context = require('./context');
-/**
- *
- * @memberof Mocha
- */
-exports.Runner = require('./runner');
-exports.Suite = Suite;
-exports.Hook = require('./hook');
-exports.Test = require('./test');
-
-/**
- * Constructs a new Mocha instance with `options`.
- *
- * @public
- * @class Mocha
- * @param {Object} [options] - Settings object.
- * @param {boolean} [options.allowUncaught] - Propagate uncaught errors?
- * @param {boolean} [options.asyncOnly] - Force `done` callback or promise?
- * @param {boolean} [options.bail] - Bail after first test failure?
- * @param {boolean} [options.checkLeaks] - Check for global variable leaks?
- * @param {boolean} [options.color] - Color TTY output from reporter?
- * @param {boolean} [options.delay] - Delay root suite execution?
- * @param {boolean} [options.diff] - Show diff on failure?
- * @param {string} [options.fgrep] - Test filter given string.
- * @param {boolean} [options.forbidOnly] - Tests marked `only` fail the suite?
- * @param {boolean} [options.forbidPending] - Pending tests fail the suite?
- * @param {boolean} [options.fullTrace] - Full stacktrace upon failure?
- * @param {string[]} [options.global] - Variables expected in global scope.
- * @param {RegExp|string} [options.grep] - Test filter given regular expression.
- * @param {boolean} [options.growl] - Enable desktop notifications?
- * @param {boolean} [options.inlineDiffs] - Display inline diffs?
- * @param {boolean} [options.invert] - Invert test filter matches?
- * @param {boolean} [options.noHighlighting] - Disable syntax highlighting?
- * @param {string|constructor} [options.reporter] - Reporter name or constructor.
- * @param {Object} [options.reporterOption] - Reporter settings object.
- * @param {number} [options.retries] - Number of times to retry failed tests.
- * @param {number} [options.slow] - Slow threshold value.
- * @param {number|string} [options.timeout] - Timeout threshold value.
- * @param {string} [options.ui] - Interface name.
- * @param {boolean} [options.parallel] - Run jobs in parallel
- * @param {number} [options.jobs] - Max number of worker processes for parallel runs
- * @param {MochaRootHookObject} [options.rootHooks] - Hooks to bootstrap the root
- * suite with
- * @param {boolean} [options.isWorker] - Should be `true` if `Mocha` process is running in a worker process.
- */
-function Mocha(options) {
-  options = utils.assign({}, mocharc, options || {});
-  this.files = [];
-  this.options = options;
-  // root suite
-  this.suite = new exports.Suite('', new exports.Context(), true);
-  this._cleanReferencesAfterRun = true;
-  this._state = mochaStates.INIT;
-
-  this.grep(options.grep)
-    .fgrep(options.fgrep)
-    .ui(options.ui)
-    .reporter(
-      options.reporter,
-      options.reporterOption || options.reporterOptions // reporterOptions was previously the only way to specify options to reporter
-    )
-    .slow(options.slow)
-    .global(options.global);
-
-  // this guard exists because Suite#timeout does not consider `undefined` to be valid input
-  if (typeof options.timeout !== 'undefined') {
-    this.timeout(options.timeout === false ? 0 : options.timeout);
-  }
-
-  if ('retries' in options) {
-    this.retries(options.retries);
-  }
-
-  [
-    'allowUncaught',
-    'asyncOnly',
-    'bail',
-    'checkLeaks',
-    'color',
-    'delay',
-    'diff',
-    'forbidOnly',
-    'forbidPending',
-    'fullTrace',
-    'growl',
-    'inlineDiffs',
-    'invert'
-  ].forEach(function(opt) {
-    if (options[opt]) {
-      this[opt]();
-    }
-  }, this);
-
-  if (options.rootHooks) {
-    this.rootHooks(options.rootHooks);
-  }
-
-  /**
-   * The class which we'll instantiate in {@link Mocha#run}.  Defaults to
-   * {@link Runner} in serial mode; changes in parallel mode.
-   * @memberof Mocha
-   * @private
-   */
-  this._runnerClass = exports.Runner;
-
-  /**
-   * Whether or not to call {@link Mocha#loadFiles} implicitly when calling
-   * {@link Mocha#run}.  If this is `true`, then it's up to the consumer to call
-   * {@link Mocha#loadFiles} _or_ {@link Mocha#loadFilesAsync}.
-   * @private
-   * @memberof Mocha
-   */
-  this._lazyLoadFiles = false;
-
-  /**
-   * It's useful for a Mocha instance to know if it's running in a worker process.
-   * We could derive this via other means, but it's helpful to have a flag to refer to.
-   * @memberof Mocha
-   * @private
-   */
-  this.isWorker = Boolean(options.isWorker);
-
-  if (
-    options.parallel &&
-    (typeof options.jobs === 'undefined' || options.jobs > 1)
-  ) {
-    debug('attempting to enable parallel mode');
-    this.parallelMode(true);
-  }
-}
-
-/**
- * Enables or disables bailing on the first failure.
- *
- * @public
- * @see [CLI option](../#-bail-b)
- * @param {boolean} [bail=true] - Whether to bail on first error.
- * @returns {Mocha} this
- * @chainable
- */
-Mocha.prototype.bail = function(bail) {
-  this.suite.bail(bail !== false);
-  return this;
-};
-
-/**
- * @summary
- * Adds `file` to be loaded for execution.
- *
- * @description
- * Useful for generic setup code that must be included within test suite.
- *
- * @public
- * @see [CLI option](../#-file-filedirectoryglob)
- * @param {string} file - Pathname of file to be loaded.
- * @returns {Mocha} this
- * @chainable
- */
-Mocha.prototype.addFile = function(file) {
-  this.files.push(file);
-  return this;
-};
-
-/**
- * Sets reporter to `reporter`, defaults to "spec".
- *
- * @public
- * @see [CLI option](../#-reporter-name-r-name)
- * @see [Reporters](../#reporters)
- * @param {String|Function} reporter - Reporter name or constructor.
- * @param {Object} [reporterOptions] - Options used to configure the reporter.
- * @returns {Mocha} this
- * @chainable
- * @throws {Error} if requested reporter cannot be loaded
- * @example
- *
- * // Use XUnit reporter and direct its output to file
- * mocha.reporter('xunit', { output: '/path/to/testspec.xunit.xml' });
- */
-Mocha.prototype.reporter = function(reporterName, reporterOptions) {
-  if (typeof reporterName === 'function') {
-    this._reporter = reporterName;
-  } else {
-    reporterName = reporterName || 'spec';
-    var reporter;
-    // Try to load a built-in reporter.
-    if (builtinReporters[reporterName]) {
-      reporter = builtinReporters[reporterName];
-    }
-    // Try to load reporters from process.cwd() and node_modules
-    if (!reporter) {
-      try {
-        reporter = require(reporterName);
-      } catch (err) {
-        if (
-          err.code === 'MODULE_NOT_FOUND' ||
-          err.message.indexOf('Cannot find module') >= 0
-        ) {
-          // Try to load reporters from a path (absolute or relative)
-          try {
-            reporter = require(path.resolve(utils.cwd(), reporterName));
-          } catch (_err) {
-            _err.code === 'MODULE_NOT_FOUND' ||
-            _err.message.indexOf('Cannot find module') >= 0
-              ? utils.warn(sQuote(reporterName) + ' reporter not found')
-              : utils.warn(
-                  sQuote(reporterName) +
-                    ' reporter blew up with error:\n' +
-                    err.stack
-                );
-          }
-        } else {
-          utils.warn(
-            sQuote(reporterName) + ' reporter blew up with error:\n' + err.stack
-          );
-        }
-      }
-    }
-    if (!reporter) {
-      throw createInvalidReporterError(
-        'invalid reporter ' + sQuote(reporterName),
-        reporterName
-      );
-    }
-    this._reporter = reporter;
-  }
-  this.options.reporterOption = reporterOptions;
-  // alias option name is used in public reporters xunit/tap/progress
-  this.options.reporterOptions = reporterOptions;
-  return this;
-};
-
-/**
- * Sets test UI `name`, defaults to "bdd".
- *
- * @public
- * @see [CLI option](../#-ui-name-u-name)
- * @see [Interface DSLs](../#interfaces)
- * @param {string|Function} [ui=bdd] - Interface name or class.
- * @returns {Mocha} this
- * @chainable
- * @throws {Error} if requested interface cannot be loaded
- */
-Mocha.prototype.ui = function(ui) {
-  var bindInterface;
-  if (typeof ui === 'function') {
-    bindInterface = ui;
-  } else {
-    ui = ui || 'bdd';
-    bindInterface = exports.interfaces[ui];
-    if (!bindInterface) {
-      try {
-        bindInterface = require(ui);
-      } catch (err) {
-        throw createInvalidInterfaceError(
-          'invalid interface ' + sQuote(ui),
-          ui
-        );
-      }
-    }
-  }
-  bindInterface(this.suite);
-
-  this.suite.on(EVENT_FILE_PRE_REQUIRE, function(context) {
-    exports.afterEach = context.afterEach || context.teardown;
-    exports.after = context.after || context.suiteTeardown;
-    exports.beforeEach = context.beforeEach || context.setup;
-    exports.before = context.before || context.suiteSetup;
-    exports.describe = context.describe || context.suite;
-    exports.it = context.it || context.test;
-    exports.xit = context.xit || (context.test && context.test.skip);
-    exports.setup = context.setup || context.beforeEach;
-    exports.suiteSetup = context.suiteSetup || context.before;
-    exports.suiteTeardown = context.suiteTeardown || context.after;
-    exports.suite = context.suite || context.describe;
-    exports.teardown = context.teardown || context.afterEach;
-    exports.test = context.test || context.it;
-    exports.run = context.run;
-  });
-
-  return this;
-};
-
-/**
- * Loads `files` prior to execution. Does not support ES Modules.
- *
- * @description
- * The implementation relies on Node's `require` to execute
- * the test interface functions and will be subject to its cache.
- * Supports only CommonJS modules. To load ES modules, use Mocha#loadFilesAsync.
- *
- * @private
- * @see {@link Mocha#addFile}
- * @see {@link Mocha#run}
- * @see {@link Mocha#unloadFiles}
- * @see {@link Mocha#loadFilesAsync}
- * @param {Function} [fn] - Callback invoked upon completion.
- */
-Mocha.prototype.loadFiles = function(fn) {
-  var self = this;
-  var suite = this.suite;
-  this.files.forEach(function(file) {
-    file = path.resolve(file);
-    suite.emit(EVENT_FILE_PRE_REQUIRE, global, file, self);
-    suite.emit(EVENT_FILE_REQUIRE, require(file), file, self);
-    suite.emit(EVENT_FILE_POST_REQUIRE, global, file, self);
-  });
-  fn && fn();
-};
-
-/**
- * Loads `files` prior to execution. Supports Node ES Modules.
- *
- * @description
- * The implementation relies on Node's `require` and `import` to execute
- * the test interface functions and will be subject to its cache.
- * Supports both CJS and ESM modules.
- *
- * @public
- * @see {@link Mocha#addFile}
- * @see {@link Mocha#run}
- * @see {@link Mocha#unloadFiles}
- * @returns {Promise}
- * @example
- *
- * // loads ESM (and CJS) test files asynchronously, then runs root suite
- * mocha.loadFilesAsync()
- *   .then(() => mocha.run(failures => process.exitCode = failures ? 1 : 0))
- *   .catch(() => process.exitCode = 1);
- */
-Mocha.prototype.loadFilesAsync = function() {
-  var self = this;
-  var suite = this.suite;
-  this.lazyLoadFiles(true);
-
-  if (!esmUtils) {
-    return new Promise(function(resolve) {
-      self.loadFiles(resolve);
-    });
-  }
-
-  return esmUtils.loadFilesAsync(
-    this.files,
-    function(file) {
-      suite.emit(EVENT_FILE_PRE_REQUIRE, global, file, self);
-    },
-    function(file, resultModule) {
-      suite.emit(EVENT_FILE_REQUIRE, resultModule, file, self);
-      suite.emit(EVENT_FILE_POST_REQUIRE, global, file, self);
-    }
-  );
-};
-
-/**
- * Removes a previously loaded file from Node's `require` cache.
- *
- * @private
- * @static
- * @see {@link Mocha#unloadFiles}
- * @param {string} file - Pathname of file to be unloaded.
- */
-Mocha.unloadFile = function(file) {
-  delete require.cache[require.resolve(file)];
-};
-
-/**
- * Unloads `files` from Node's `require` cache.
- *
- * @description
- * This allows required files to be "freshly" reloaded, providing the ability
- * to reuse a Mocha instance programmatically.
- * Note: does not clear ESM module files from the cache
- *
- * <strong>Intended for consumers &mdash; not used internally</strong>
- *
- * @public
- * @see {@link Mocha#run}
- * @returns {Mocha} this
- * @chainable
- */
-Mocha.prototype.unloadFiles = function() {
-  if (this._state === mochaStates.DISPOSED) {
-    throw createMochaInstanceAlreadyDisposedError(
-      'Mocha instance is already disposed, it cannot be used again.',
-      this._cleanReferencesAfterRun,
-      this
-    );
-  }
-
-  this.files.forEach(function(file) {
-    Mocha.unloadFile(file);
-  });
-  this._state = mochaStates.INIT;
-  return this;
-};
-
-/**
- * Sets `grep` filter after escaping RegExp special characters.
- *
- * @public
- * @see {@link Mocha#grep}
- * @param {string} str - Value to be converted to a regexp.
- * @returns {Mocha} this
- * @chainable
- * @example
- *
- * // Select tests whose full title begins with `"foo"` followed by a period
- * mocha.fgrep('foo.');
- */
-Mocha.prototype.fgrep = function(str) {
-  if (!str) {
-    return this;
-  }
-  return this.grep(new RegExp(escapeRe(str)));
-};
-
-/**
- * @summary
- * Sets `grep` filter used to select specific tests for execution.
- *
- * @description
- * If `re` is a regexp-like string, it will be converted to regexp.
- * The regexp is tested against the full title of each test (i.e., the
- * name of the test preceded by titles of each its ancestral suites).
- * As such, using an <em>exact-match</em> fixed pattern against the
- * test name itself will not yield any matches.
- * <br>
- * <strong>Previous filter value will be overwritten on each call!</strong>
- *
- * @public
- * @see [CLI option](../#-grep-regexp-g-regexp)
- * @see {@link Mocha#fgrep}
- * @see {@link Mocha#invert}
- * @param {RegExp|String} re - Regular expression used to select tests.
- * @return {Mocha} this
- * @chainable
- * @example
- *
- * // Select tests whose full title contains `"match"`, ignoring case
- * mocha.grep(/match/i);
- * @example
- *
- * // Same as above but with regexp-like string argument
- * mocha.grep('/match/i');
- * @example
- *
- * // ## Anti-example
- * // Given embedded test `it('only-this-test')`...
- * mocha.grep('/^only-this-test$/');    // NO! Use `.only()` to do this!
- */
-Mocha.prototype.grep = function(re) {
-  if (utils.isString(re)) {
-    // extract args if it's regex-like, i.e: [string, pattern, flag]
-    var arg = re.match(/^\/(.*)\/(g|i|)$|.*/);
-    this.options.grep = new RegExp(arg[1] || arg[0], arg[2]);
-  } else {
-    this.options.grep = re;
-  }
-  return this;
-};
-
-/**
- * Inverts `grep` matches.
- *
- * @public
- * @see {@link Mocha#grep}
- * @return {Mocha} this
- * @chainable
- * @example
- *
- * // Select tests whose full title does *not* contain `"match"`, ignoring case
- * mocha.grep(/match/i).invert();
- */
-Mocha.prototype.invert = function() {
-  this.options.invert = true;
-  return this;
-};
-
-/**
- * Enables or disables checking for global variables leaked while running tests.
- *
- * @public
- * @see [CLI option](../#-check-leaks)
- * @param {boolean} [checkLeaks=true] - Whether to check for global variable leaks.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.checkLeaks = function(checkLeaks) {
-  this.options.checkLeaks = checkLeaks !== false;
-  return this;
-};
-
-/**
- * Enables or disables whether or not to dispose after each test run.
- * Disable this to ensure you can run the test suite multiple times.
- * If disabled, be sure to dispose mocha when you're done to prevent memory leaks.
- * @public
- * @see {@link Mocha#dispose}
- * @param {boolean} cleanReferencesAfterRun
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.cleanReferencesAfterRun = function(cleanReferencesAfterRun) {
-  this._cleanReferencesAfterRun = cleanReferencesAfterRun !== false;
-  return this;
-};
-
-/**
- * Manually dispose this mocha instance. Mark this instance as `disposed` and unable to run more tests.
- * It also removes function references to tests functions and hooks, so variables trapped in closures can be cleaned by the garbage collector.
- * @public
- */
-Mocha.prototype.dispose = function() {
-  if (this._state === mochaStates.RUNNING) {
-    throw createMochaInstanceAlreadyRunningError(
-      'Cannot dispose while the mocha instance is still running tests.'
-    );
-  }
-  this.unloadFiles();
-  this._previousRunner && this._previousRunner.dispose();
-  this.suite.dispose();
-  this._state = mochaStates.DISPOSED;
-};
-
-/**
- * Displays full stack trace upon test failure.
- *
- * @public
- * @see [CLI option](../#-full-trace)
- * @param {boolean} [fullTrace=true] - Whether to print full stacktrace upon failure.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.fullTrace = function(fullTrace) {
-  this.options.fullTrace = fullTrace !== false;
-  return this;
-};
-
-/**
- * Enables desktop notification support if prerequisite software installed.
- *
- * @public
- * @see [CLI option](../#-growl-g)
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.growl = function() {
-  this.options.growl = this.isGrowlCapable();
-  if (!this.options.growl) {
-    var detail = utils.isBrowser()
-      ? 'notification support not available in this browser...'
-      : 'notification support prerequisites not installed...';
-    console.error(detail + ' cannot enable!');
-  }
-  return this;
-};
-
-/**
- * @summary
- * Determines if Growl support seems likely.
- *
- * @description
- * <strong>Not available when run in browser.</strong>
- *
- * @private
- * @see {@link Growl#isCapable}
- * @see {@link Mocha#growl}
- * @return {boolean} whether Growl support can be expected
- */
-Mocha.prototype.isGrowlCapable = growl.isCapable;
-
-/**
- * Implements desktop notifications using a pseudo-reporter.
- *
- * @private
- * @see {@link Mocha#growl}
- * @see {@link Growl#notify}
- * @param {Runner} runner - Runner instance.
- */
-Mocha.prototype._growl = growl.notify;
-
-/**
- * Specifies whitelist of variable names to be expected in global scope.
- *
- * @public
- * @see [CLI option](../#-global-variable-name)
- * @see {@link Mocha#checkLeaks}
- * @param {String[]|String} global - Accepted global variable name(s).
- * @return {Mocha} this
- * @chainable
- * @example
- *
- * // Specify variables to be expected in global scope
- * mocha.global(['jQuery', 'MyLib']);
- */
-Mocha.prototype.global = function(global) {
-  this.options.global = (this.options.global || [])
-    .concat(global)
-    .filter(Boolean)
-    .filter(function(elt, idx, arr) {
-      return arr.indexOf(elt) === idx;
-    });
-  return this;
-};
-// for backwards compability, 'globals' is an alias of 'global'
-Mocha.prototype.globals = Mocha.prototype.global;
-
-/**
- * Enables or disables TTY color output by screen-oriented reporters.
- *
- * @public
- * @see [CLI option](../#-color-c-colors)
- * @param {boolean} [color=true] - Whether to enable color output.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.color = function(color) {
-  this.options.color = color !== false;
-  return this;
-};
-
-/**
- * Enables or disables reporter to use inline diffs (rather than +/-)
- * in test failure output.
- *
- * @public
- * @see [CLI option](../#-inline-diffs)
- * @param {boolean} [inlineDiffs=true] - Whether to use inline diffs.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.inlineDiffs = function(inlineDiffs) {
-  this.options.inlineDiffs = inlineDiffs !== false;
-  return this;
-};
-
-/**
- * Enables or disables reporter to include diff in test failure output.
- *
- * @public
- * @see [CLI option](../#-diff)
- * @param {boolean} [diff=true] - Whether to show diff on failure.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.diff = function(diff) {
-  this.options.diff = diff !== false;
-  return this;
-};
-
-/**
- * @summary
- * Sets timeout threshold value.
- *
- * @description
- * A string argument can use shorthand (such as "2s") and will be converted.
- * If the value is `0`, timeouts will be disabled.
- *
- * @public
- * @see [CLI option](../#-timeout-ms-t-ms)
- * @see [Timeouts](../#timeouts)
- * @param {number|string} msecs - Timeout threshold value.
- * @return {Mocha} this
- * @chainable
- * @example
- *
- * // Sets timeout to one second
- * mocha.timeout(1000);
- * @example
- *
- * // Same as above but using string argument
- * mocha.timeout('1s');
- */
-Mocha.prototype.timeout = function(msecs) {
-  this.suite.timeout(msecs);
-  return this;
-};
-
-/**
- * Sets the number of times to retry failed tests.
- *
- * @public
- * @see [CLI option](../#-retries-n)
- * @see [Retry Tests](../#retry-tests)
- * @param {number} retry - Number of times to retry failed tests.
- * @return {Mocha} this
- * @chainable
- * @example
- *
- * // Allow any failed test to retry one more time
- * mocha.retries(1);
- */
-Mocha.prototype.retries = function(n) {
-  this.suite.retries(n);
-  return this;
-};
-
-/**
- * Sets slowness threshold value.
- *
- * @public
- * @see [CLI option](../#-slow-ms-s-ms)
- * @param {number} msecs - Slowness threshold value.
- * @return {Mocha} this
- * @chainable
- * @example
- *
- * // Sets "slow" threshold to half a second
- * mocha.slow(500);
- * @example
- *
- * // Same as above but using string argument
- * mocha.slow('0.5s');
- */
-Mocha.prototype.slow = function(msecs) {
-  this.suite.slow(msecs);
-  return this;
-};
-
-/**
- * Forces all tests to either accept a `done` callback or return a promise.
- *
- * @public
- * @see [CLI option](../#-async-only-a)
- * @param {boolean} [asyncOnly=true] - Wether to force `done` callback or promise.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.asyncOnly = function(asyncOnly) {
-  this.options.asyncOnly = asyncOnly !== false;
-  return this;
-};
-
-/**
- * Disables syntax highlighting (in browser).
- *
- * @public
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.noHighlighting = function() {
-  this.options.noHighlighting = true;
-  return this;
-};
-
-/**
- * Enables or disables uncaught errors to propagate.
- *
- * @public
- * @see [CLI option](../#-allow-uncaught)
- * @param {boolean} [allowUncaught=true] - Whether to propagate uncaught errors.
- * @return {Mocha} this
- * @chainable
- */
-Mocha.prototype.allowUncaught = function(allowUncaught) {
-  this.options.allowUncaught = allowUncaught !== false;
-  return this;
-};
-
-/**
- * @summary
- * Delays root suite execution.
- *
- * @description
- * Used to perform asynch operations before any suites are run.
- *
- * @public
- * @see [delayed root suite](../#delayed-root-suite)
- * @returns {Mocha} this
- * @chainable
- */
-Mocha.prototype.delay = function delay() {
-  this.options.delay = true;
-  return this;
-};
-
-/**
- * Causes tests marked `only` to fail the suite.
- *
- * @public
- * @see [CLI option](../#-forbid-only)
- * @param {boolean} [forbidOnly=true] - Whether tests marked `only` fail the suite.
- * @returns {Mocha} this
- * @chainable
- */
-Mocha.prototype.forbidOnly = function(forbidOnly) {
-  this.options.forbidOnly = forbidOnly !== false;
-  return this;
-};
-
-/**
- * Causes pending tests and tests marked `skip` to fail the suite.
- *
- * @public
- * @see [CLI option](../#-forbid-pending)
- * @param {boolean} [forbidPending=true] - Whether pending tests fail the suite.
- * @returns {Mocha} this
- * @chainable
- */
-Mocha.prototype.forbidPending = function(forbidPending) {
-  this.options.forbidPending = forbidPending !== false;
-  return this;
-};
-
-/**
- * Throws an error if mocha is in the wrong state to be able to transition to a "running" state.
- * @private
- */
-Mocha.prototype._guardRunningStateTransition = function() {
-  if (this._state === mochaStates.RUNNING) {
-    throw createMochaInstanceAlreadyRunningError(
-      'Mocha instance is currently running tests, cannot start a next test run until this one is done',
-      this
-    );
-  }
-  if (
-    this._state === mochaStates.DISPOSED ||
-    this._state === mochaStates.REFERENCES_CLEANED
-  ) {
-    throw createMochaInstanceAlreadyDisposedError(
-      'Mocha instance is already disposed, cannot start a new test run. Please create a new mocha instance. Be sure to set disable `cleanReferencesAfterRun` when you want to reuse the same mocha instance for multiple test runs.',
-      this._cleanReferencesAfterRun,
-      this
-    );
-  }
-};
-
-/**
- * Mocha version as specified by "package.json".
- *
- * @name Mocha#version
- * @type string
- * @readonly
- */
-Object.defineProperty(Mocha.prototype, 'version', {
-  value: require('../package.json').version,
-  configurable: false,
-  enumerable: true,
-  writable: false
-});
-
-/**
- * Callback to be invoked when test execution is complete.
- *
- * @callback DoneCB
- * @param {number} failures - Number of failures that occurred.
- */
-
-/**
- * Runs root suite and invokes `fn()` when complete.
- *
- * @description
- * To run tests multiple times (or to run tests in files that are
- * already in the `require` cache), make sure to clear them from
- * the cache first!
- *
- * @public
- * @see {@link Mocha#unloadFiles}
- * @see {@link Runner#run}
- * @param {DoneCB} [fn] - Callback invoked when test execution completed.
- * @returns {Runner} runner instance
- * @example
- *
- * // exit with non-zero status if there were test failures
- * mocha.run(failures => process.exitCode = failures ? 1 : 0);
- */
-Mocha.prototype.run = function(fn) {
-  this._guardRunningStateTransition();
-  this._state = mochaStates.RUNNING;
-  if (this._previousRunner) {
-    this._previousRunner.dispose();
-    this.suite.reset();
-  }
-  if (this.files.length && !this._lazyLoadFiles) {
-    this.loadFiles();
-  }
-  var self = this;
-  var suite = this.suite;
-  var options = this.options;
-  options.files = this.files;
-  var runner = new this._runnerClass(suite, {
-    delay: options.delay,
-    cleanReferencesAfterRun: this._cleanReferencesAfterRun
-  });
-  createStatsCollector(runner);
-  var reporter = new this._reporter(runner, options);
-  runner.checkLeaks = options.checkLeaks === true;
-  runner.fullStackTrace = options.fullTrace;
-  runner.asyncOnly = options.asyncOnly;
-  runner.allowUncaught = options.allowUncaught;
-  runner.forbidOnly = options.forbidOnly;
-  runner.forbidPending = options.forbidPending;
-  if (options.grep) {
-    runner.grep(options.grep, options.invert);
-  }
-  if (options.global) {
-    runner.globals(options.global);
-  }
-  if (options.growl) {
-    this._growl(runner);
-  }
-  if (options.color !== undefined) {
-    exports.reporters.Base.useColors = options.color;
-  }
-  exports.reporters.Base.inlineDiffs = options.inlineDiffs;
-  exports.reporters.Base.hideDiff = !options.diff;
-
-  function done(failures) {
-    self._previousRunner = runner;
-    if (self._cleanReferencesAfterRun) {
-      self._state = mochaStates.REFERENCES_CLEANED;
-    } else {
-      self._state = mochaStates.INIT;
-    }
-    fn = fn || utils.noop;
-    if (reporter.done) {
-      reporter.done(failures, fn);
-    } else {
-      fn(failures);
-    }
-  }
-
-  return runner.run(done, {files: this.files, options: options});
-};
-
-/**
- * Assigns hooks to the root suite
- * @param {MochaRootHookObject} [hooks] - Hooks to assign to root suite
- * @chainable
- */
-Mocha.prototype.rootHooks = function rootHooks(hooks) {
-  if (utils.type(hooks) === 'object') {
-    var beforeAll = [].concat(hooks.beforeAll || []);
-    var beforeEach = [].concat(hooks.beforeEach || []);
-    var afterAll = [].concat(hooks.afterAll || []);
-    var afterEach = [].concat(hooks.afterEach || []);
-    var rootSuite = this.suite;
-    beforeAll.forEach(function(hook) {
-      rootSuite.beforeAll(hook);
-    });
-    beforeEach.forEach(function(hook) {
-      rootSuite.beforeEach(hook);
-    });
-    afterAll.forEach(function(hook) {
-      rootSuite.afterAll(hook);
-    });
-    afterEach.forEach(function(hook) {
-      rootSuite.afterEach(hook);
-    });
-  }
-  return this;
-};
-
-/**
- * Toggles parallel mode.
- *
- * Must be run before calling {@link Mocha#run}. Changes the `Runner` class to
- * use; also enables lazy file loading if not already done so.
- * @param {boolean} [enable] - If `true`, enable; otherwise disable.
- * @throws If run in browser
- * @throws If Mocha not in "INIT" state
- * @returns {Mocha}
- * @chainable
- * @public
- */
-Mocha.prototype.parallelMode = function parallelMode(enable) {
-  if (utils.isBrowser()) {
-    throw errors.createUnsupportedError(
-      'parallel mode is only supported in Node.js'
-    );
-  }
-  var parallel = enable === true;
-  if (
-    parallel === this.options.parallel &&
-    this._lazyLoadFiles &&
-    this._runnerClass !== exports.Runner
-  ) {
-    return this;
-  }
-  if (this._state !== mochaStates.INIT) {
-    throw errors.createUnsupportedError(
-      'cannot change parallel mode after having called run()'
-    );
-  }
-  this.options.parallel = parallel;
-
-  // swap Runner class
-  this._runnerClass = parallel
-    ? require('./nodejs/parallel-buffered-runner')
-    : exports.Runner;
-
-  // lazyLoadFiles may have been set `true` otherwise (for ESM loading),
-  // so keep `true` if so.
-  return this.lazyLoadFiles(this._lazyLoadFiles || parallel);
-};
-
-/**
- * Disables implicit call to {@link Mocha#loadFiles} in {@link Mocha#run}. This
- * setting is used by watch mode, parallel mode, and for loading ESM files.
- * @todo This should throw if we've already loaded files; such behavior
- * necessitates adding a new state.
- * @param {boolean} [enable] - If `true`, disable eager loading of files in
- * {@link Mocha#run}
- * @chainable
- * @public
- */
-Mocha.prototype.lazyLoadFiles = function lazyLoadFiles(enable) {
-  this._lazyLoadFiles = enable === true;
-  debug('set lazy load to %s', enable);
-  return this;
-};
-
-/**
- * An alternative way to define root hooks that works with parallel runs.
- * @typedef {Object} MochaRootHookObject
- * @property {Function|Function[]} [beforeAll] - "Before all" hook(s)
- * @property {Function|Function[]} [beforeEach] - "Before each" hook(s)
- * @property {Function|Function[]} [afterAll] - "After all" hook(s)
- * @property {Function|Function[]} [afterEach] - "After each" hook(s)
- */
-
-/**
- * An function that returns a {@link MochaRootHookObject}, either sync or async.
- * @callback MochaRootHookFunction
- * @returns {MochaRootHookObject|Promise<MochaRootHookObject>}
- */
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../package.json":90,"./context":5,"./errors":6,"./esm-utils":42,"./hook":7,"./interfaces":11,"./mocharc.json":15,"./nodejs/growl":2,"./nodejs/parallel-buffered-runner":40,"./reporters":21,"./runnable":33,"./runner":34,"./stats-collector":35,"./suite":36,"./test":37,"./utils":38,"debug":45,"escape-string-regexp":49,"path":42}],15:[function(require,module,exports){
-module.exports={
-  "diff": true,
-  "extension": ["js", "cjs", "mjs"],
-  "package": "./package.json",
-  "reporter": "spec",
-  "slow": 75,
-  "timeout": 2000,
-  "ui": "bdd",
-  "watch-ignore": ["node_modules", ".git"]
-}
-
-},{}],16:[function(require,module,exports){
-'use strict';
-
-module.exports = Pending;
-
-/**
- * Initialize a new `Pending` error with the given message.
- *
- * @param {string} message
- */
-function Pending(message) {
-  this.message = message;
-}
-
-},{}],17:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Base
- */
-/**
- * Module dependencies.
- */
-
-var tty = require('tty');
-var diff = require('diff');
-var milliseconds = require('ms');
-var utils = require('../utils');
-var supportsColor = utils.isBrowser() ? null : require('supports-color');
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-
-/**
- * Expose `Base`.
- */
-
-exports = module.exports = Base;
-
-/**
- * Check if both stdio streams are associated with a tty.
- */
-
-var isatty = process.stdout.isTTY && process.stderr.isTTY;
-
-/**
- * Save log references to avoid tests interfering (see GH-3604).
- */
-var consoleLog = console.log;
-
-/**
- * Enable coloring by default, except in the browser interface.
- */
-
-exports.useColors =
-  !utils.isBrowser() &&
-  (supportsColor.stdout || process.env.MOCHA_COLORS !== undefined);
-
-/**
- * Inline diffs instead of +/-
- */
-
-exports.inlineDiffs = false;
-
-/**
- * Default color map.
- */
-
-exports.colors = {
-  pass: 90,
-  fail: 31,
-  'bright pass': 92,
-  'bright fail': 91,
-  'bright yellow': 93,
-  pending: 36,
-  suite: 0,
-  'error title': 0,
-  'error message': 31,
-  'error stack': 90,
-  checkmark: 32,
-  fast: 90,
-  medium: 33,
-  slow: 31,
-  green: 32,
-  light: 90,
-  'diff gutter': 90,
-  'diff added': 32,
-  'diff removed': 31
-};
-
-/**
- * Default symbol map.
- */
-
-exports.symbols = {
-  ok: '✓',
-  err: '✖',
-  dot: '․',
-  comma: ',',
-  bang: '!'
-};
-
-// With node.js on Windows: use symbols available in terminal default fonts
-if (process.platform === 'win32') {
-  exports.symbols.ok = '\u221A';
-  exports.symbols.err = '\u00D7';
-  exports.symbols.dot = '.';
-}
-
-/**
- * Color `str` with the given `type`,
- * allowing colors to be disabled,
- * as well as user-defined color
- * schemes.
- *
- * @private
- * @param {string} type
- * @param {string} str
- * @return {string}
- */
-var color = (exports.color = function(type, str) {
-  if (!exports.useColors) {
-    return String(str);
-  }
-  return '\u001b[' + exports.colors[type] + 'm' + str + '\u001b[0m';
-});
-
-/**
- * Expose term window size, with some defaults for when stderr is not a tty.
- */
-
-exports.window = {
-  width: 75
-};
-
-if (isatty) {
-  exports.window.width = process.stdout.getWindowSize
-    ? process.stdout.getWindowSize(1)[0]
-    : tty.getWindowSize()[1];
-}
-
-/**
- * Expose some basic cursor interactions that are common among reporters.
- */
-
-exports.cursor = {
-  hide: function() {
-    isatty && process.stdout.write('\u001b[?25l');
-  },
-
-  show: function() {
-    isatty && process.stdout.write('\u001b[?25h');
-  },
-
-  deleteLine: function() {
-    isatty && process.stdout.write('\u001b[2K');
-  },
-
-  beginningOfLine: function() {
-    isatty && process.stdout.write('\u001b[0G');
-  },
-
-  CR: function() {
-    if (isatty) {
-      exports.cursor.deleteLine();
-      exports.cursor.beginningOfLine();
-    } else {
-      process.stdout.write('\r');
-    }
-  }
-};
-
-var showDiff = (exports.showDiff = function(err) {
-  return (
-    err &&
-    err.showDiff !== false &&
-    sameType(err.actual, err.expected) &&
-    err.expected !== undefined
-  );
-});
-
-function stringifyDiffObjs(err) {
-  if (!utils.isString(err.actual) || !utils.isString(err.expected)) {
-    err.actual = utils.stringify(err.actual);
-    err.expected = utils.stringify(err.expected);
-  }
-}
-
-/**
- * Returns a diff between 2 strings with coloured ANSI output.
- *
- * @description
- * The diff will be either inline or unified dependent on the value
- * of `Base.inlineDiff`.
- *
- * @param {string} actual
- * @param {string} expected
- * @return {string} Diff
- */
-var generateDiff = (exports.generateDiff = function(actual, expected) {
-  try {
-    return exports.inlineDiffs
-      ? inlineDiff(actual, expected)
-      : unifiedDiff(actual, expected);
-  } catch (err) {
-    var msg =
-      '\n      ' +
-      color('diff added', '+ expected') +
-      ' ' +
-      color('diff removed', '- actual:  failed to generate Mocha diff') +
-      '\n';
-    return msg;
-  }
-});
-
-/**
- * Outputs the given `failures` as a list.
- *
- * @public
- * @memberof Mocha.reporters.Base
- * @variation 1
- * @param {Object[]} failures - Each is Test instance with corresponding
- *     Error property
- */
-exports.list = function(failures) {
-  var multipleErr, multipleTest;
-  Base.consoleLog();
-  failures.forEach(function(test, i) {
-    // format
-    var fmt =
-      color('error title', '  %s) %s:\n') +
-      color('error message', '     %s') +
-      color('error stack', '\n%s\n');
-
-    // msg
-    var msg;
-    var err;
-    if (test.err && test.err.multiple) {
-      if (multipleTest !== test) {
-        multipleTest = test;
-        multipleErr = [test.err].concat(test.err.multiple);
-      }
-      err = multipleErr.shift();
-    } else {
-      err = test.err;
-    }
-    var message;
-    if (err.message && typeof err.message.toString === 'function') {
-      message = err.message + '';
-    } else if (typeof err.inspect === 'function') {
-      message = err.inspect() + '';
-    } else {
-      message = '';
-    }
-    var stack = err.stack || message;
-    var index = message ? stack.indexOf(message) : -1;
-
-    if (index === -1) {
-      msg = message;
-    } else {
-      index += message.length;
-      msg = stack.slice(0, index);
-      // remove msg from stack
-      stack = stack.slice(index + 1);
-    }
-
-    // uncaught
-    if (err.uncaught) {
-      msg = 'Uncaught ' + msg;
-    }
-    // explicitly show diff
-    if (!exports.hideDiff && showDiff(err)) {
-      stringifyDiffObjs(err);
-      fmt =
-        color('error title', '  %s) %s:\n%s') + color('error stack', '\n%s\n');
-      var match = message.match(/^([^:]+): expected/);
-      msg = '\n      ' + color('error message', match ? match[1] : msg);
-
-      msg += generateDiff(err.actual, err.expected);
-    }
-
-    // indent stack trace
-    stack = stack.replace(/^/gm, '  ');
-
-    // indented test title
-    var testTitle = '';
-    test.titlePath().forEach(function(str, index) {
-      if (index !== 0) {
-        testTitle += '\n     ';
-      }
-      for (var i = 0; i < index; i++) {
-        testTitle += '  ';
-      }
-      testTitle += str;
-    });
-
-    Base.consoleLog(fmt, i + 1, testTitle, msg, stack);
-  });
-};
-
-/**
- * Constructs a new `Base` reporter instance.
- *
- * @description
- * All other reporters generally inherit from this reporter.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Base(runner, options) {
-  var failures = (this.failures = []);
-
-  if (!runner) {
-    throw new TypeError('Missing runner argument');
-  }
-  this.options = options || {};
-  this.runner = runner;
-  this.stats = runner.stats; // assigned so Reporters keep a closer reference
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    if (test.duration > test.slow()) {
-      test.speed = 'slow';
-    } else if (test.duration > test.slow() / 2) {
-      test.speed = 'medium';
-    } else {
-      test.speed = 'fast';
-    }
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test, err) {
-    if (showDiff(err)) {
-      stringifyDiffObjs(err);
-    }
-    // more than one error per test
-    if (test.err && err instanceof Error) {
-      test.err.multiple = (test.err.multiple || []).concat(err);
-    } else {
-      test.err = err;
-    }
-    failures.push(test);
-  });
-}
-
-/**
- * Outputs common epilogue used by many of the bundled reporters.
- *
- * @public
- * @memberof Mocha.reporters
- */
-Base.prototype.epilogue = function() {
-  var stats = this.stats;
-  var fmt;
-
-  Base.consoleLog();
-
-  // passes
-  fmt =
-    color('bright pass', ' ') +
-    color('green', ' %d passing') +
-    color('light', ' (%s)');
-
-  Base.consoleLog(fmt, stats.passes || 0, milliseconds(stats.duration));
-
-  // pending
-  if (stats.pending) {
-    fmt = color('pending', ' ') + color('pending', ' %d pending');
-
-    Base.consoleLog(fmt, stats.pending);
-  }
-
-  // failures
-  if (stats.failures) {
-    fmt = color('fail', '  %d failing');
-
-    Base.consoleLog(fmt, stats.failures);
-
-    Base.list(this.failures);
-    Base.consoleLog();
-  }
-
-  Base.consoleLog();
-};
-
-/**
- * Pads the given `str` to `len`.
- *
- * @private
- * @param {string} str
- * @param {string} len
- * @return {string}
- */
-function pad(str, len) {
-  str = String(str);
-  return Array(len - str.length + 1).join(' ') + str;
-}
-
-/**
- * Returns inline diff between 2 strings with coloured ANSI output.
- *
- * @private
- * @param {String} actual
- * @param {String} expected
- * @return {string} Diff
- */
-function inlineDiff(actual, expected) {
-  var msg = errorDiff(actual, expected);
-
-  // linenos
-  var lines = msg.split('\n');
-  if (lines.length > 4) {
-    var width = String(lines.length).length;
-    msg = lines
-      .map(function(str, i) {
-        return pad(++i, width) + ' |' + ' ' + str;
-      })
-      .join('\n');
-  }
-
-  // legend
-  msg =
-    '\n' +
-    color('diff removed', 'actual') +
-    ' ' +
-    color('diff added', 'expected') +
-    '\n\n' +
-    msg +
-    '\n';
-
-  // indent
-  msg = msg.replace(/^/gm, '      ');
-  return msg;
-}
-
-/**
- * Returns unified diff between two strings with coloured ANSI output.
- *
- * @private
- * @param {String} actual
- * @param {String} expected
- * @return {string} The diff.
- */
-function unifiedDiff(actual, expected) {
-  var indent = '      ';
-  function cleanUp(line) {
-    if (line[0] === '+') {
-      return indent + colorLines('diff added', line);
-    }
-    if (line[0] === '-') {
-      return indent + colorLines('diff removed', line);
-    }
-    if (line.match(/@@/)) {
-      return '--';
-    }
-    if (line.match(/\\ No newline/)) {
-      return null;
-    }
-    return indent + line;
-  }
-  function notBlank(line) {
-    return typeof line !== 'undefined' && line !== null;
-  }
-  var msg = diff.createPatch('string', actual, expected);
-  var lines = msg.split('\n').splice(5);
-  return (
-    '\n      ' +
-    colorLines('diff added', '+ expected') +
-    ' ' +
-    colorLines('diff removed', '- actual') +
-    '\n\n' +
-    lines
-      .map(cleanUp)
-      .filter(notBlank)
-      .join('\n')
-  );
-}
-
-/**
- * Returns character diff for `err`.
- *
- * @private
- * @param {String} actual
- * @param {String} expected
- * @return {string} the diff
- */
-function errorDiff(actual, expected) {
-  return diff
-    .diffWordsWithSpace(actual, expected)
-    .map(function(str) {
-      if (str.added) {
-        return colorLines('diff added', str.value);
-      }
-      if (str.removed) {
-        return colorLines('diff removed', str.value);
-      }
-      return str.value;
-    })
-    .join('');
-}
-
-/**
- * Colors lines for `str`, using the color `name`.
- *
- * @private
- * @param {string} name
- * @param {string} str
- * @return {string}
- */
-function colorLines(name, str) {
-  return str
-    .split('\n')
-    .map(function(str) {
-      return color(name, str);
-    })
-    .join('\n');
-}
-
-/**
- * Object#toString reference.
- */
-var objToString = Object.prototype.toString;
-
-/**
- * Checks that a / b have the same type.
- *
- * @private
- * @param {Object} a
- * @param {Object} b
- * @return {boolean}
- */
-function sameType(a, b) {
-  return objToString.call(a) === objToString.call(b);
-}
-
-Base.consoleLog = consoleLog;
-
-Base.abstract = true;
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"_process":67,"diff":48,"ms":58,"supports-color":42,"tty":4}],18:[function(require,module,exports){
-'use strict';
-/**
- * @module Doc
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var utils = require('../utils');
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
-var EVENT_SUITE_END = constants.EVENT_SUITE_END;
-
-/**
- * Expose `Doc`.
- */
-
-exports = module.exports = Doc;
-
-/**
- * Constructs a new `Doc` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Doc(runner, options) {
-  Base.call(this, runner, options);
-
-  var indents = 2;
-
-  function indent() {
-    return Array(indents).join('  ');
-  }
-
-  runner.on(EVENT_SUITE_BEGIN, function(suite) {
-    if (suite.root) {
-      return;
-    }
-    ++indents;
-    Base.consoleLog('%s<section class="suite">', indent());
-    ++indents;
-    Base.consoleLog('%s<h1>%s</h1>', indent(), utils.escape(suite.title));
-    Base.consoleLog('%s<dl>', indent());
-  });
-
-  runner.on(EVENT_SUITE_END, function(suite) {
-    if (suite.root) {
-      return;
-    }
-    Base.consoleLog('%s</dl>', indent());
-    --indents;
-    Base.consoleLog('%s</section>', indent());
-    --indents;
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    Base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
-    Base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.file));
-    var code = utils.escape(utils.clean(test.body));
-    Base.consoleLog('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test, err) {
-    Base.consoleLog(
-      '%s  <dt class="error">%s</dt>',
-      indent(),
-      utils.escape(test.title)
-    );
-    Base.consoleLog(
-      '%s  <dt class="error">%s</dt>',
-      indent(),
-      utils.escape(test.file)
-    );
-    var code = utils.escape(utils.clean(test.body));
-    Base.consoleLog(
-      '%s  <dd class="error"><pre><code>%s</code></pre></dd>',
-      indent(),
-      code
-    );
-    Base.consoleLog(
-      '%s  <dd class="error">%s</dd>',
-      indent(),
-      utils.escape(err)
-    );
-  });
-}
-
-Doc.description = 'HTML documentation';
-
-},{"../runner":34,"../utils":38,"./base":17}],19:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Dot
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var inherits = require('../utils').inherits;
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-
-/**
- * Expose `Dot`.
- */
-
-exports = module.exports = Dot;
-
-/**
- * Constructs a new `Dot` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Dot(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var width = (Base.window.width * 0.75) | 0;
-  var n = -1;
-
-  runner.on(EVENT_RUN_BEGIN, function() {
-    process.stdout.write('\n');
-  });
-
-  runner.on(EVENT_TEST_PENDING, function() {
-    if (++n % width === 0) {
-      process.stdout.write('\n  ');
-    }
-    process.stdout.write(Base.color('pending', Base.symbols.comma));
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    if (++n % width === 0) {
-      process.stdout.write('\n  ');
-    }
-    if (test.speed === 'slow') {
-      process.stdout.write(Base.color('bright yellow', Base.symbols.dot));
-    } else {
-      process.stdout.write(Base.color(test.speed, Base.symbols.dot));
-    }
-  });
-
-  runner.on(EVENT_TEST_FAIL, function() {
-    if (++n % width === 0) {
-      process.stdout.write('\n  ');
-    }
-    process.stdout.write(Base.color('fail', Base.symbols.bang));
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    process.stdout.write('\n');
-    self.epilogue();
-  });
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(Dot, Base);
-
-Dot.description = 'dot matrix representation';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67}],20:[function(require,module,exports){
-(function (global){
-'use strict';
-
-/* eslint-env browser */
-/**
- * @module HTML
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var utils = require('../utils');
-var Progress = require('../browser/progress');
-var escapeRe = require('escape-string-regexp');
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
-var EVENT_SUITE_END = constants.EVENT_SUITE_END;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var escape = utils.escape;
-
-/**
- * Save timer references to avoid Sinon interfering (see GH-237).
- */
-
-var Date = global.Date;
-
-/**
- * Expose `HTML`.
- */
-
-exports = module.exports = HTML;
-
-/**
- * Stats template.
- */
-
-var statsTemplate =
-  '<ul id="mocha-stats">' +
-  '<li class="progress"><canvas width="40" height="40"></canvas></li>' +
-  '<li class="passes"><a href="/service/javascript:void(0);">passes:</a> <em>0</em></li>' +
-  '<li class="failures"><a href="/service/javascript:void(0);">failures:</a> <em>0</em></li>' +
-  '<li class="duration">duration: <em>0</em>s</li>' +
-  '</ul>';
-
-var playIcon = '&#x2023;';
-
-/**
- * Constructs a new `HTML` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function HTML(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var stats = this.stats;
-  var stat = fragment(statsTemplate);
-  var items = stat.getElementsByTagName('li');
-  var passes = items[1].getElementsByTagName('em')[0];
-  var passesLink = items[1].getElementsByTagName('a')[0];
-  var failures = items[2].getElementsByTagName('em')[0];
-  var failuresLink = items[2].getElementsByTagName('a')[0];
-  var duration = items[3].getElementsByTagName('em')[0];
-  var canvas = stat.getElementsByTagName('canvas')[0];
-  var report = fragment('<ul id="mocha-report"></ul>');
-  var stack = [report];
-  var progress;
-  var ctx;
-  var root = document.getElementById('mocha');
-
-  if (canvas.getContext) {
-    var ratio = window.devicePixelRatio || 1;
-    canvas.style.width = canvas.width;
-    canvas.style.height = canvas.height;
-    canvas.width *= ratio;
-    canvas.height *= ratio;
-    ctx = canvas.getContext('2d');
-    ctx.scale(ratio, ratio);
-    progress = new Progress();
-  }
-
-  if (!root) {
-    return error('#mocha div missing, add it to your document');
-  }
-
-  // pass toggle
-  on(passesLink, 'click', function(evt) {
-    evt.preventDefault();
-    unhide();
-    var name = /pass/.test(report.className) ? '' : ' pass';
-    report.className = report.className.replace(/fail|pass/g, '') + name;
-    if (report.className.trim()) {
-      hideSuitesWithout('test pass');
-    }
-  });
-
-  // failure toggle
-  on(failuresLink, 'click', function(evt) {
-    evt.preventDefault();
-    unhide();
-    var name = /fail/.test(report.className) ? '' : ' fail';
-    report.className = report.className.replace(/fail|pass/g, '') + name;
-    if (report.className.trim()) {
-      hideSuitesWithout('test fail');
-    }
-  });
-
-  root.appendChild(stat);
-  root.appendChild(report);
-
-  if (progress) {
-    progress.size(40);
-  }
-
-  runner.on(EVENT_SUITE_BEGIN, function(suite) {
-    if (suite.root) {
-      return;
-    }
-
-    // suite
-    var url = self.suiteURL(suite);
-    var el = fragment(
-      '<li class="suite"><h1><a href="http://github.com/%s">%s</a></h1></li>',
-      url,
-      escape(suite.title)
-    );
-
-    // container
-    stack[0].appendChild(el);
-    stack.unshift(document.createElement('ul'));
-    el.appendChild(stack[0]);
-  });
-
-  runner.on(EVENT_SUITE_END, function(suite) {
-    if (suite.root) {
-      updateStats();
-      return;
-    }
-    stack.shift();
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    var url = self.testURL(test);
-    var markup =
-      '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> ' +
-      '<a href="http://github.com/%s" class="replay">' +
-      playIcon +
-      '</a></h2></li>';
-    var el = fragment(markup, test.speed, test.title, test.duration, url);
-    self.addCodeToggle(el, test.body);
-    appendToStack(el);
-    updateStats();
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test) {
-    var el = fragment(
-      '<li class="test fail"><h2>%e <a href="http://github.com/%e" class="replay">' +
-        playIcon +
-        '</a></h2></li>',
-      test.title,
-      self.testURL(test)
-    );
-    var stackString; // Note: Includes leading newline
-    var message = test.err.toString();
-
-    // <=IE7 stringifies to [Object Error]. Since it can be overloaded, we
-    // check for the result of the stringifying.
-    if (message === '[object Error]') {
-      message = test.err.message;
-    }
-
-    if (test.err.stack) {
-      var indexOfMessage = test.err.stack.indexOf(test.err.message);
-      if (indexOfMessage === -1) {
-        stackString = test.err.stack;
-      } else {
-        stackString = test.err.stack.substr(
-          test.err.message.length + indexOfMessage
-        );
-      }
-    } else if (test.err.sourceURL && test.err.line !== undefined) {
-      // Safari doesn't give you a stack. Let's at least provide a source line.
-      stackString = '\n(' + test.err.sourceURL + ':' + test.err.line + ')';
-    }
-
-    stackString = stackString || '';
-
-    if (test.err.htmlMessage && stackString) {
-      el.appendChild(
-        fragment(
-          '<div class="html-error">%s\n<pre class="error">%e</pre></div>',
-          test.err.htmlMessage,
-          stackString
-        )
-      );
-    } else if (test.err.htmlMessage) {
-      el.appendChild(
-        fragment('<div class="html-error">%s</div>', test.err.htmlMessage)
-      );
-    } else {
-      el.appendChild(
-        fragment('<pre class="error">%e%e</pre>', message, stackString)
-      );
-    }
-
-    self.addCodeToggle(el, test.body);
-    appendToStack(el);
-    updateStats();
-  });
-
-  runner.on(EVENT_TEST_PENDING, function(test) {
-    var el = fragment(
-      '<li class="test pass pending"><h2>%e</h2></li>',
-      test.title
-    );
-    appendToStack(el);
-    updateStats();
-  });
-
-  function appendToStack(el) {
-    // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack.
-    if (stack[0]) {
-      stack[0].appendChild(el);
-    }
-  }
-
-  function updateStats() {
-    // TODO: add to stats
-    var percent = ((stats.tests / runner.total) * 100) | 0;
-    if (progress) {
-      progress.update(percent).draw(ctx);
-    }
-
-    // update stats
-    var ms = new Date() - stats.start;
-    text(passes, stats.passes);
-    text(failures, stats.failures);
-    text(duration, (ms / 1000).toFixed(2));
-  }
-}
-
-/**
- * Makes a URL, preserving querystring ("search") parameters.
- *
- * @param {string} s
- * @return {string} A new URL.
- */
-function makeUrl(s) {
-  var search = window.location.search;
-
-  // Remove previous grep query parameter if present
-  if (search) {
-    search = search.replace(/[?&]grep=[^&\s]*/g, '').replace(/^&/, '?');
-  }
-
-  return (
-    window.location.pathname +
-    (search ? search + '&' : '?') +
-    'grep=' +
-    encodeURIComponent(escapeRe(s))
-  );
-}
-
-/**
- * Provide suite URL.
- *
- * @param {Object} [suite]
- */
-HTML.prototype.suiteURL = function(suite) {
-  return makeUrl(suite.fullTitle());
-};
-
-/**
- * Provide test URL.
- *
- * @param {Object} [test]
- */
-HTML.prototype.testURL = function(test) {
-  return makeUrl(test.fullTitle());
-};
-
-/**
- * Adds code toggle functionality for the provided test's list element.
- *
- * @param {HTMLLIElement} el
- * @param {string} contents
- */
-HTML.prototype.addCodeToggle = function(el, contents) {
-  var h2 = el.getElementsByTagName('h2')[0];
-
-  on(h2, 'click', function() {
-    pre.style.display = pre.style.display === 'none' ? 'block' : 'none';
-  });
-
-  var pre = fragment('<pre><code>%e</code></pre>', utils.clean(contents));
-  el.appendChild(pre);
-  pre.style.display = 'none';
-};
-
-/**
- * Display error `msg`.
- *
- * @param {string} msg
- */
-function error(msg) {
-  document.body.appendChild(fragment('<div id="mocha-error">%s</div>', msg));
-}
-
-/**
- * Return a DOM fragment from `html`.
- *
- * @param {string} html
- */
-function fragment(html) {
-  var args = arguments;
-  var div = document.createElement('div');
-  var i = 1;
-
-  div.innerHTML = html.replace(/%([se])/g, function(_, type) {
-    switch (type) {
-      case 's':
-        return String(args[i++]);
-      case 'e':
-        return escape(args[i++]);
-      // no default
-    }
-  });
-
-  return div.firstChild;
-}
-
-/**
- * Check for suites that do not have elements
- * with `classname`, and hide them.
- *
- * @param {text} classname
- */
-function hideSuitesWithout(classname) {
-  var suites = document.getElementsByClassName('suite');
-  for (var i = 0; i < suites.length; i++) {
-    var els = suites[i].getElementsByClassName(classname);
-    if (!els.length) {
-      suites[i].className += ' hidden';
-    }
-  }
-}
-
-/**
- * Unhide .hidden suites.
- */
-function unhide() {
-  var els = document.getElementsByClassName('suite hidden');
-  while (els.length > 0) {
-    els[0].className = els[0].className.replace('suite hidden', 'suite');
-  }
-}
-
-/**
- * Set an element's text contents.
- *
- * @param {HTMLElement} el
- * @param {string} contents
- */
-function text(el, contents) {
-  if (el.textContent) {
-    el.textContent = contents;
-  } else {
-    el.innerText = contents;
-  }
-}
-
-/**
- * Listen on `event` with callback `fn`.
- */
-function on(el, event, fn) {
-  if (el.addEventListener) {
-    el.addEventListener(event, fn, false);
-  } else {
-    el.attachEvent('on' + event, fn);
-  }
-}
-
-HTML.browserOnly = true;
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../browser/progress":3,"../runner":34,"../utils":38,"./base":17,"escape-string-regexp":49}],21:[function(require,module,exports){
-'use strict';
-
-// Alias exports to a their normalized format Mocha#reporter to prevent a need
-// for dynamic (try/catch) requires, which Browserify doesn't handle.
-exports.Base = exports.base = require('./base');
-exports.Dot = exports.dot = require('./dot');
-exports.Doc = exports.doc = require('./doc');
-exports.TAP = exports.tap = require('./tap');
-exports.JSON = exports.json = require('./json');
-exports.HTML = exports.html = require('./html');
-exports.List = exports.list = require('./list');
-exports.Min = exports.min = require('./min');
-exports.Spec = exports.spec = require('./spec');
-exports.Nyan = exports.nyan = require('./nyan');
-exports.XUnit = exports.xunit = require('./xunit');
-exports.Markdown = exports.markdown = require('./markdown');
-exports.Progress = exports.progress = require('./progress');
-exports.Landing = exports.landing = require('./landing');
-exports.JSONStream = exports['json-stream'] = require('./json-stream');
-
-},{"./base":17,"./doc":18,"./dot":19,"./html":20,"./json":23,"./json-stream":22,"./landing":24,"./list":25,"./markdown":26,"./min":27,"./nyan":28,"./progress":29,"./spec":30,"./tap":31,"./xunit":32}],22:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module JSONStream
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-
-/**
- * Expose `JSONStream`.
- */
-
-exports = module.exports = JSONStream;
-
-/**
- * Constructs a new `JSONStream` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function JSONStream(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var total = runner.total;
-
-  runner.once(EVENT_RUN_BEGIN, function() {
-    writeEvent(['start', {total: total}]);
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    writeEvent(['pass', clean(test)]);
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test, err) {
-    test = clean(test);
-    test.err = err.message;
-    test.stack = err.stack || null;
-    writeEvent(['fail', test]);
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    writeEvent(['end', self.stats]);
-  });
-}
-
-/**
- * Mocha event to be written to the output stream.
- * @typedef {Array} JSONStream~MochaEvent
- */
-
-/**
- * Writes Mocha event to reporter output stream.
- *
- * @private
- * @param {JSONStream~MochaEvent} event - Mocha event to be output.
- */
-function writeEvent(event) {
-  process.stdout.write(JSON.stringify(event) + '\n');
-}
-
-/**
- * Returns an object literal representation of `test`
- * free of cyclic properties, etc.
- *
- * @private
- * @param {Test} test - Instance used as data source.
- * @return {Object} object containing pared-down test instance data
- */
-function clean(test) {
-  return {
-    title: test.title,
-    fullTitle: test.fullTitle(),
-    file: test.file,
-    duration: test.duration,
-    currentRetry: test.currentRetry()
-  };
-}
-
-JSONStream.description = 'newline delimited JSON events';
-
-}).call(this,require('_process'))
-},{"../runner":34,"./base":17,"_process":67}],23:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module JSON
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_TEST_END = constants.EVENT_TEST_END;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-
-/**
- * Expose `JSON`.
- */
-
-exports = module.exports = JSONReporter;
-
-/**
- * Constructs a new `JSON` reporter instance.
- *
- * @public
- * @class JSON
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function JSONReporter(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var tests = [];
-  var pending = [];
-  var failures = [];
-  var passes = [];
-
-  runner.on(EVENT_TEST_END, function(test) {
-    tests.push(test);
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    passes.push(test);
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test) {
-    failures.push(test);
-  });
-
-  runner.on(EVENT_TEST_PENDING, function(test) {
-    pending.push(test);
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    var obj = {
-      stats: self.stats,
-      tests: tests.map(clean),
-      pending: pending.map(clean),
-      failures: failures.map(clean),
-      passes: passes.map(clean)
-    };
-
-    runner.testResults = obj;
-
-    process.stdout.write(JSON.stringify(obj, null, 2));
-  });
-}
-
-/**
- * Return a plain-object representation of `test`
- * free of cyclic properties etc.
- *
- * @private
- * @param {Object} test
- * @return {Object}
- */
-function clean(test) {
-  var err = test.err || {};
-  if (err instanceof Error) {
-    err = errorJSON(err);
-  }
-
-  return {
-    title: test.title,
-    fullTitle: test.fullTitle(),
-    file: test.file,
-    duration: test.duration,
-    currentRetry: test.currentRetry(),
-    err: cleanCycles(err)
-  };
-}
-
-/**
- * Replaces any circular references inside `obj` with '[object Object]'
- *
- * @private
- * @param {Object} obj
- * @return {Object}
- */
-function cleanCycles(obj) {
-  var cache = [];
-  return JSON.parse(
-    JSON.stringify(obj, function(key, value) {
-      if (typeof value === 'object' && value !== null) {
-        if (cache.indexOf(value) !== -1) {
-          // Instead of going in a circle, we'll print [object Object]
-          return '' + value;
-        }
-        cache.push(value);
-      }
-
-      return value;
-    })
-  );
-}
-
-/**
- * Transform an Error object into a JSON object.
- *
- * @private
- * @param {Error} err
- * @return {Object}
- */
-function errorJSON(err) {
-  var res = {};
-  Object.getOwnPropertyNames(err).forEach(function(key) {
-    res[key] = err[key];
-  }, err);
-  return res;
-}
-
-JSONReporter.description = 'single JSON object';
-
-}).call(this,require('_process'))
-},{"../runner":34,"./base":17,"_process":67}],24:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Landing
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var inherits = require('../utils').inherits;
-var constants = require('../runner').constants;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_END = constants.EVENT_TEST_END;
-var STATE_FAILED = require('../runnable').constants.STATE_FAILED;
-
-var cursor = Base.cursor;
-var color = Base.color;
-
-/**
- * Expose `Landing`.
- */
-
-exports = module.exports = Landing;
-
-/**
- * Airplane color.
- */
-
-Base.colors.plane = 0;
-
-/**
- * Airplane crash color.
- */
-
-Base.colors['plane crash'] = 31;
-
-/**
- * Runway color.
- */
-
-Base.colors.runway = 90;
-
-/**
- * Constructs a new `Landing` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Landing(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var width = (Base.window.width * 0.75) | 0;
-  var stream = process.stdout;
-
-  var plane = color('plane', '✈');
-  var crashed = -1;
-  var n = 0;
-  var total = 0;
-
-  function runway() {
-    var buf = Array(width).join('-');
-    return '  ' + color('runway', buf);
-  }
-
-  runner.on(EVENT_RUN_BEGIN, function() {
-    stream.write('\n\n\n  ');
-    cursor.hide();
-  });
-
-  runner.on(EVENT_TEST_END, function(test) {
-    // check if the plane crashed
-    var col = crashed === -1 ? ((width * ++n) / ++total) | 0 : crashed;
-    // show the crash
-    if (test.state === STATE_FAILED) {
-      plane = color('plane crash', '✈');
-      crashed = col;
-    }
-
-    // render landing strip
-    stream.write('\u001b[' + (width + 1) + 'D\u001b[2A');
-    stream.write(runway());
-    stream.write('\n  ');
-    stream.write(color('runway', Array(col).join('⋅')));
-    stream.write(plane);
-    stream.write(color('runway', Array(width - col).join('⋅') + '\n'));
-    stream.write(runway());
-    stream.write('\u001b[0m');
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    cursor.show();
-    process.stdout.write('\n');
-    self.epilogue();
-  });
-
-  // if cursor is hidden when we ctrl-C, then it will remain hidden unless...
-  process.once('SIGINT', function() {
-    cursor.show();
-    process.nextTick(function() {
-      process.kill(process.pid, 'SIGINT');
-    });
-  });
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(Landing, Base);
-
-Landing.description = 'Unicode landing strip';
-
-}).call(this,require('_process'))
-},{"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":67}],25:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module List
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var inherits = require('../utils').inherits;
-var constants = require('../runner').constants;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_BEGIN = constants.EVENT_TEST_BEGIN;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var color = Base.color;
-var cursor = Base.cursor;
-
-/**
- * Expose `List`.
- */
-
-exports = module.exports = List;
-
-/**
- * Constructs a new `List` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function List(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var n = 0;
-
-  runner.on(EVENT_RUN_BEGIN, function() {
-    Base.consoleLog();
-  });
-
-  runner.on(EVENT_TEST_BEGIN, function(test) {
-    process.stdout.write(color('pass', '    ' + test.fullTitle() + ': '));
-  });
-
-  runner.on(EVENT_TEST_PENDING, function(test) {
-    var fmt = color('checkmark', '  -') + color('pending', ' %s');
-    Base.consoleLog(fmt, test.fullTitle());
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    var fmt =
-      color('checkmark', '  ' + Base.symbols.ok) +
-      color('pass', ' %s: ') +
-      color(test.speed, '%dms');
-    cursor.CR();
-    Base.consoleLog(fmt, test.fullTitle(), test.duration);
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test) {
-    cursor.CR();
-    Base.consoleLog(color('fail', '  %d) %s'), ++n, test.fullTitle());
-  });
-
-  runner.once(EVENT_RUN_END, self.epilogue.bind(self));
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(List, Base);
-
-List.description = 'like "spec" reporter but flat';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67}],26:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Markdown
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var utils = require('../utils');
-var constants = require('../runner').constants;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
-var EVENT_SUITE_END = constants.EVENT_SUITE_END;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-
-/**
- * Constants
- */
-
-var SUITE_PREFIX = '$';
-
-/**
- * Expose `Markdown`.
- */
-
-exports = module.exports = Markdown;
-
-/**
- * Constructs a new `Markdown` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Markdown(runner, options) {
-  Base.call(this, runner, options);
-
-  var level = 0;
-  var buf = '';
-
-  function title(str) {
-    return Array(level).join('#') + ' ' + str;
-  }
-
-  function mapTOC(suite, obj) {
-    var ret = obj;
-    var key = SUITE_PREFIX + suite.title;
-
-    obj = obj[key] = obj[key] || {suite: suite};
-    suite.suites.forEach(function(suite) {
-      mapTOC(suite, obj);
-    });
-
-    return ret;
-  }
-
-  function stringifyTOC(obj, level) {
-    ++level;
-    var buf = '';
-    var link;
-    for (var key in obj) {
-      if (key === 'suite') {
-        continue;
-      }
-      if (key !== SUITE_PREFIX) {
-        link = ' - [' + key.substring(1) + ']';
-        link += '(#' + utils.slug(obj[key].suite.fullTitle()) + ')\n';
-        buf += Array(level).join('  ') + link;
-      }
-      buf += stringifyTOC(obj[key], level);
-    }
-    return buf;
-  }
-
-  function generateTOC(suite) {
-    var obj = mapTOC(suite, {});
-    return stringifyTOC(obj, 0);
-  }
-
-  generateTOC(runner.suite);
-
-  runner.on(EVENT_SUITE_BEGIN, function(suite) {
-    ++level;
-    var slug = utils.slug(suite.fullTitle());
-    buf += '<a name="' + slug + '"></a>' + '\n';
-    buf += title(suite.title) + '\n';
-  });
-
-  runner.on(EVENT_SUITE_END, function() {
-    --level;
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    var code = utils.clean(test.body);
-    buf += test.title + '.\n';
-    buf += '\n```js\n';
-    buf += code + '\n';
-    buf += '```\n\n';
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    process.stdout.write('# TOC\n');
-    process.stdout.write(generateTOC(runner.suite));
-    process.stdout.write(buf);
-  });
-}
-
-Markdown.description = 'GitHub Flavored Markdown';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67}],27:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Min
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var inherits = require('../utils').inherits;
-var constants = require('../runner').constants;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-
-/**
- * Expose `Min`.
- */
-
-exports = module.exports = Min;
-
-/**
- * Constructs a new `Min` reporter instance.
- *
- * @description
- * This minimal test reporter is best used with '--watch'.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Min(runner, options) {
-  Base.call(this, runner, options);
-
-  runner.on(EVENT_RUN_BEGIN, function() {
-    // clear screen
-    process.stdout.write('\u001b[2J');
-    // set cursor position
-    process.stdout.write('\u001b[1;3H');
-  });
-
-  runner.once(EVENT_RUN_END, this.epilogue.bind(this));
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(Min, Base);
-
-Min.description = 'essentially just a summary';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67}],28:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Nyan
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var constants = require('../runner').constants;
-var inherits = require('../utils').inherits;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-
-/**
- * Expose `Dot`.
- */
-
-exports = module.exports = NyanCat;
-
-/**
- * Constructs a new `Nyan` reporter instance.
- *
- * @public
- * @class Nyan
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function NyanCat(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var width = (Base.window.width * 0.75) | 0;
-  var nyanCatWidth = (this.nyanCatWidth = 11);
-
-  this.colorIndex = 0;
-  this.numberOfLines = 4;
-  this.rainbowColors = self.generateColors();
-  this.scoreboardWidth = 5;
-  this.tick = 0;
-  this.trajectories = [[], [], [], []];
-  this.trajectoryWidthMax = width - nyanCatWidth;
-
-  runner.on(EVENT_RUN_BEGIN, function() {
-    Base.cursor.hide();
-    self.draw();
-  });
-
-  runner.on(EVENT_TEST_PENDING, function() {
-    self.draw();
-  });
-
-  runner.on(EVENT_TEST_PASS, function() {
-    self.draw();
-  });
-
-  runner.on(EVENT_TEST_FAIL, function() {
-    self.draw();
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    Base.cursor.show();
-    for (var i = 0; i < self.numberOfLines; i++) {
-      write('\n');
-    }
-    self.epilogue();
-  });
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(NyanCat, Base);
-
-/**
- * Draw the nyan cat
- *
- * @private
- */
-
-NyanCat.prototype.draw = function() {
-  this.appendRainbow();
-  this.drawScoreboard();
-  this.drawRainbow();
-  this.drawNyanCat();
-  this.tick = !this.tick;
-};
-
-/**
- * Draw the "scoreboard" showing the number
- * of passes, failures and pending tests.
- *
- * @private
- */
-
-NyanCat.prototype.drawScoreboard = function() {
-  var stats = this.stats;
-
-  function draw(type, n) {
-    write(' ');
-    write(Base.color(type, n));
-    write('\n');
-  }
-
-  draw('green', stats.passes);
-  draw('fail', stats.failures);
-  draw('pending', stats.pending);
-  write('\n');
-
-  this.cursorUp(this.numberOfLines);
-};
-
-/**
- * Append the rainbow.
- *
- * @private
- */
-
-NyanCat.prototype.appendRainbow = function() {
-  var segment = this.tick ? '_' : '-';
-  var rainbowified = this.rainbowify(segment);
-
-  for (var index = 0; index < this.numberOfLines; index++) {
-    var trajectory = this.trajectories[index];
-    if (trajectory.length >= this.trajectoryWidthMax) {
-      trajectory.shift();
-    }
-    trajectory.push(rainbowified);
-  }
-};
-
-/**
- * Draw the rainbow.
- *
- * @private
- */
-
-NyanCat.prototype.drawRainbow = function() {
-  var self = this;
-
-  this.trajectories.forEach(function(line) {
-    write('\u001b[' + self.scoreboardWidth + 'C');
-    write(line.join(''));
-    write('\n');
-  });
-
-  this.cursorUp(this.numberOfLines);
-};
-
-/**
- * Draw the nyan cat
- *
- * @private
- */
-NyanCat.prototype.drawNyanCat = function() {
-  var self = this;
-  var startWidth = this.scoreboardWidth + this.trajectories[0].length;
-  var dist = '\u001b[' + startWidth + 'C';
-  var padding = '';
-
-  write(dist);
-  write('_,------,');
-  write('\n');
-
-  write(dist);
-  padding = self.tick ? '  ' : '   ';
-  write('_|' + padding + '/\\_/\\ ');
-  write('\n');
-
-  write(dist);
-  padding = self.tick ? '_' : '__';
-  var tail = self.tick ? '~' : '^';
-  write(tail + '|' + padding + this.face() + ' ');
-  write('\n');
-
-  write(dist);
-  padding = self.tick ? ' ' : '  ';
-  write(padding + '""  "" ');
-  write('\n');
-
-  this.cursorUp(this.numberOfLines);
-};
-
-/**
- * Draw nyan cat face.
- *
- * @private
- * @return {string}
- */
-
-NyanCat.prototype.face = function() {
-  var stats = this.stats;
-  if (stats.failures) {
-    return '( x .x)';
-  } else if (stats.pending) {
-    return '( o .o)';
-  } else if (stats.passes) {
-    return '( ^ .^)';
-  }
-  return '( - .-)';
-};
-
-/**
- * Move cursor up `n`.
- *
- * @private
- * @param {number} n
- */
-
-NyanCat.prototype.cursorUp = function(n) {
-  write('\u001b[' + n + 'A');
-};
-
-/**
- * Move cursor down `n`.
- *
- * @private
- * @param {number} n
- */
-
-NyanCat.prototype.cursorDown = function(n) {
-  write('\u001b[' + n + 'B');
-};
-
-/**
- * Generate rainbow colors.
- *
- * @private
- * @return {Array}
- */
-NyanCat.prototype.generateColors = function() {
-  var colors = [];
-
-  for (var i = 0; i < 6 * 7; i++) {
-    var pi3 = Math.floor(Math.PI / 3);
-    var n = i * (1.0 / 6);
-    var r = Math.floor(3 * Math.sin(n) + 3);
-    var g = Math.floor(3 * Math.sin(n + 2 * pi3) + 3);
-    var b = Math.floor(3 * Math.sin(n + 4 * pi3) + 3);
-    colors.push(36 * r + 6 * g + b + 16);
-  }
-
-  return colors;
-};
-
-/**
- * Apply rainbow to the given `str`.
- *
- * @private
- * @param {string} str
- * @return {string}
- */
-NyanCat.prototype.rainbowify = function(str) {
-  if (!Base.useColors) {
-    return str;
-  }
-  var color = this.rainbowColors[this.colorIndex % this.rainbowColors.length];
-  this.colorIndex += 1;
-  return '\u001b[38;5;' + color + 'm' + str + '\u001b[0m';
-};
-
-/**
- * Stdout helper.
- *
- * @param {string} string A message to write to stdout.
- */
-function write(string) {
-  process.stdout.write(string);
-}
-
-NyanCat.description = '"nyan cat"';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67}],29:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module Progress
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var constants = require('../runner').constants;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_TEST_END = constants.EVENT_TEST_END;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var inherits = require('../utils').inherits;
-var color = Base.color;
-var cursor = Base.cursor;
-
-/**
- * Expose `Progress`.
- */
-
-exports = module.exports = Progress;
-
-/**
- * General progress bar color.
- */
-
-Base.colors.progress = 90;
-
-/**
- * Constructs a new `Progress` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Progress(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var width = (Base.window.width * 0.5) | 0;
-  var total = runner.total;
-  var complete = 0;
-  var lastN = -1;
-
-  // default chars
-  options = options || {};
-  var reporterOptions = options.reporterOptions || {};
-
-  options.open = reporterOptions.open || '[';
-  options.complete = reporterOptions.complete || '▬';
-  options.incomplete = reporterOptions.incomplete || Base.symbols.dot;
-  options.close = reporterOptions.close || ']';
-  options.verbose = reporterOptions.verbose || false;
-
-  // tests started
-  runner.on(EVENT_RUN_BEGIN, function() {
-    process.stdout.write('\n');
-    cursor.hide();
-  });
-
-  // tests complete
-  runner.on(EVENT_TEST_END, function() {
-    complete++;
-
-    var percent = complete / total;
-    var n = (width * percent) | 0;
-    var i = width - n;
-
-    if (n === lastN && !options.verbose) {
-      // Don't re-render the line if it hasn't changed
-      return;
-    }
-    lastN = n;
-
-    cursor.CR();
-    process.stdout.write('\u001b[J');
-    process.stdout.write(color('progress', '  ' + options.open));
-    process.stdout.write(Array(n).join(options.complete));
-    process.stdout.write(Array(i).join(options.incomplete));
-    process.stdout.write(color('progress', options.close));
-    if (options.verbose) {
-      process.stdout.write(color('progress', ' ' + complete + ' of ' + total));
-    }
-  });
-
-  // tests are complete, output some stats
-  // and the failures if any
-  runner.once(EVENT_RUN_END, function() {
-    cursor.show();
-    process.stdout.write('\n');
-    self.epilogue();
-  });
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(Progress, Base);
-
-Progress.description = 'a progress bar';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67}],30:[function(require,module,exports){
-'use strict';
-/**
- * @module Spec
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var constants = require('../runner').constants;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
-var EVENT_SUITE_END = constants.EVENT_SUITE_END;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var inherits = require('../utils').inherits;
-var color = Base.color;
-
-/**
- * Expose `Spec`.
- */
-
-exports = module.exports = Spec;
-
-/**
- * Constructs a new `Spec` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function Spec(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var indents = 0;
-  var n = 0;
-
-  function indent() {
-    return Array(indents).join('  ');
-  }
-
-  runner.on(EVENT_RUN_BEGIN, function() {
-    Base.consoleLog();
-  });
-
-  runner.on(EVENT_SUITE_BEGIN, function(suite) {
-    ++indents;
-    Base.consoleLog(color('suite', '%s%s'), indent(), suite.title);
-  });
-
-  runner.on(EVENT_SUITE_END, function() {
-    --indents;
-    if (indents === 1) {
-      Base.consoleLog();
-    }
-  });
-
-  runner.on(EVENT_TEST_PENDING, function(test) {
-    var fmt = indent() + color('pending', '  - %s');
-    Base.consoleLog(fmt, test.title);
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    var fmt;
-    if (test.speed === 'fast') {
-      fmt =
-        indent() +
-        color('checkmark', '  ' + Base.symbols.ok) +
-        color('pass', ' %s');
-      Base.consoleLog(fmt, test.title);
-    } else {
-      fmt =
-        indent() +
-        color('checkmark', '  ' + Base.symbols.ok) +
-        color('pass', ' %s') +
-        color(test.speed, ' (%dms)');
-      Base.consoleLog(fmt, test.title, test.duration);
-    }
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test) {
-    Base.consoleLog(indent() + color('fail', '  %d) %s'), ++n, test.title);
-  });
-
-  runner.once(EVENT_RUN_END, self.epilogue.bind(self));
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(Spec, Base);
-
-Spec.description = 'hierarchical & verbose [default]';
-
-},{"../runner":34,"../utils":38,"./base":17}],31:[function(require,module,exports){
-(function (process){
-'use strict';
-/**
- * @module TAP
- */
-/**
- * Module dependencies.
- */
-
-var util = require('util');
-var Base = require('./base');
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var EVENT_TEST_END = constants.EVENT_TEST_END;
-var inherits = require('../utils').inherits;
-var sprintf = util.format;
-
-/**
- * Expose `TAP`.
- */
-
-exports = module.exports = TAP;
-
-/**
- * Constructs a new `TAP` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function TAP(runner, options) {
-  Base.call(this, runner, options);
-
-  var self = this;
-  var n = 1;
-
-  var tapVersion = '12';
-  if (options && options.reporterOptions) {
-    if (options.reporterOptions.tapVersion) {
-      tapVersion = options.reporterOptions.tapVersion.toString();
-    }
-  }
-
-  this._producer = createProducer(tapVersion);
-
-  runner.once(EVENT_RUN_BEGIN, function() {
-    self._producer.writeVersion();
-  });
-
-  runner.on(EVENT_TEST_END, function() {
-    ++n;
-  });
-
-  runner.on(EVENT_TEST_PENDING, function(test) {
-    self._producer.writePending(n, test);
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    self._producer.writePass(n, test);
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test, err) {
-    self._producer.writeFail(n, test, err);
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    self._producer.writeEpilogue(runner.stats);
-  });
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(TAP, Base);
-
-/**
- * Returns a TAP-safe title of `test`.
- *
- * @private
- * @param {Test} test - Test instance.
- * @return {String} title with any hash character removed
- */
-function title(test) {
-  return test.fullTitle().replace(/#/g, '');
-}
-
-/**
- * Writes newline-terminated formatted string to reporter output stream.
- *
- * @private
- * @param {string} format - `printf`-like format string
- * @param {...*} [varArgs] - Format string arguments
- */
-function println(format, varArgs) {
-  var vargs = Array.from(arguments);
-  vargs[0] += '\n';
-  process.stdout.write(sprintf.apply(null, vargs));
-}
-
-/**
- * Returns a `tapVersion`-appropriate TAP producer instance, if possible.
- *
- * @private
- * @param {string} tapVersion - Version of TAP specification to produce.
- * @returns {TAPProducer} specification-appropriate instance
- * @throws {Error} if specification version has no associated producer.
- */
-function createProducer(tapVersion) {
-  var producers = {
-    '12': new TAP12Producer(),
-    '13': new TAP13Producer()
-  };
-  var producer = producers[tapVersion];
-
-  if (!producer) {
-    throw new Error(
-      'invalid or unsupported TAP version: ' + JSON.stringify(tapVersion)
-    );
-  }
-
-  return producer;
-}
-
-/**
- * @summary
- * Constructs a new TAPProducer.
- *
- * @description
- * <em>Only</em> to be used as an abstract base class.
- *
- * @private
- * @constructor
- */
-function TAPProducer() {}
-
-/**
- * Writes the TAP version to reporter output stream.
- *
- * @abstract
- */
-TAPProducer.prototype.writeVersion = function() {};
-
-/**
- * Writes the plan to reporter output stream.
- *
- * @abstract
- * @param {number} ntests - Number of tests that are planned to run.
- */
-TAPProducer.prototype.writePlan = function(ntests) {
-  println('%d..%d', 1, ntests);
-};
-
-/**
- * Writes that test passed to reporter output stream.
- *
- * @abstract
- * @param {number} n - Index of test that passed.
- * @param {Test} test - Instance containing test information.
- */
-TAPProducer.prototype.writePass = function(n, test) {
-  println('ok %d %s', n, title(test));
-};
-
-/**
- * Writes that test was skipped to reporter output stream.
- *
- * @abstract
- * @param {number} n - Index of test that was skipped.
- * @param {Test} test - Instance containing test information.
- */
-TAPProducer.prototype.writePending = function(n, test) {
-  println('ok %d %s # SKIP -', n, title(test));
-};
-
-/**
- * Writes that test failed to reporter output stream.
- *
- * @abstract
- * @param {number} n - Index of test that failed.
- * @param {Test} test - Instance containing test information.
- * @param {Error} err - Reason the test failed.
- */
-TAPProducer.prototype.writeFail = function(n, test, err) {
-  println('not ok %d %s', n, title(test));
-};
-
-/**
- * Writes the summary epilogue to reporter output stream.
- *
- * @abstract
- * @param {Object} stats - Object containing run statistics.
- */
-TAPProducer.prototype.writeEpilogue = function(stats) {
-  // :TBD: Why is this not counting pending tests?
-  println('# tests ' + (stats.passes + stats.failures));
-  println('# pass ' + stats.passes);
-  // :TBD: Why are we not showing pending results?
-  println('# fail ' + stats.failures);
-  this.writePlan(stats.passes + stats.failures + stats.pending);
-};
-
-/**
- * @summary
- * Constructs a new TAP12Producer.
- *
- * @description
- * Produces output conforming to the TAP12 specification.
- *
- * @private
- * @constructor
- * @extends TAPProducer
- * @see {@link https://testanything.org/tap-specification.html|Specification}
- */
-function TAP12Producer() {
-  /**
-   * Writes that test failed to reporter output stream, with error formatting.
-   * @override
-   */
-  this.writeFail = function(n, test, err) {
-    TAPProducer.prototype.writeFail.call(this, n, test, err);
-    if (err.message) {
-      println(err.message.replace(/^/gm, '  '));
-    }
-    if (err.stack) {
-      println(err.stack.replace(/^/gm, '  '));
-    }
-  };
-}
-
-/**
- * Inherit from `TAPProducer.prototype`.
- */
-inherits(TAP12Producer, TAPProducer);
-
-/**
- * @summary
- * Constructs a new TAP13Producer.
- *
- * @description
- * Produces output conforming to the TAP13 specification.
- *
- * @private
- * @constructor
- * @extends TAPProducer
- * @see {@link https://testanything.org/tap-version-13-specification.html|Specification}
- */
-function TAP13Producer() {
-  /**
-   * Writes the TAP version to reporter output stream.
-   * @override
-   */
-  this.writeVersion = function() {
-    println('TAP version 13');
-  };
-
-  /**
-   * Writes that test failed to reporter output stream, with error formatting.
-   * @override
-   */
-  this.writeFail = function(n, test, err) {
-    TAPProducer.prototype.writeFail.call(this, n, test, err);
-    var emitYamlBlock = err.message != null || err.stack != null;
-    if (emitYamlBlock) {
-      println(indent(1) + '---');
-      if (err.message) {
-        println(indent(2) + 'message: |-');
-        println(err.message.replace(/^/gm, indent(3)));
-      }
-      if (err.stack) {
-        println(indent(2) + 'stack: |-');
-        println(err.stack.replace(/^/gm, indent(3)));
-      }
-      println(indent(1) + '...');
-    }
-  };
-
-  function indent(level) {
-    return Array(level + 1).join('  ');
-  }
-}
-
-/**
- * Inherit from `TAPProducer.prototype`.
- */
-inherits(TAP13Producer, TAPProducer);
-
-TAP.description = 'TAP-compatible output';
-
-}).call(this,require('_process'))
-},{"../runner":34,"../utils":38,"./base":17,"_process":67,"util":89}],32:[function(require,module,exports){
-(function (process,global){
-'use strict';
-/**
- * @module XUnit
- */
-/**
- * Module dependencies.
- */
-
-var Base = require('./base');
-var utils = require('../utils');
-var fs = require('fs');
-var path = require('path');
-var errors = require('../errors');
-var createUnsupportedError = errors.createUnsupportedError;
-var constants = require('../runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var STATE_FAILED = require('../runnable').constants.STATE_FAILED;
-var inherits = utils.inherits;
-var escape = utils.escape;
-
-/**
- * Save timer references to avoid Sinon interfering (see GH-237).
- */
-var Date = global.Date;
-
-/**
- * Expose `XUnit`.
- */
-
-exports = module.exports = XUnit;
-
-/**
- * Constructs a new `XUnit` reporter instance.
- *
- * @public
- * @class
- * @memberof Mocha.reporters
- * @extends Mocha.reporters.Base
- * @param {Runner} runner - Instance triggers reporter actions.
- * @param {Object} [options] - runner options
- */
-function XUnit(runner, options) {
-  Base.call(this, runner, options);
-
-  var stats = this.stats;
-  var tests = [];
-  var self = this;
-
-  // the name of the test suite, as it will appear in the resulting XML file
-  var suiteName;
-
-  // the default name of the test suite if none is provided
-  var DEFAULT_SUITE_NAME = 'Mocha Tests';
-
-  if (options && options.reporterOptions) {
-    if (options.reporterOptions.output) {
-      if (!fs.createWriteStream) {
-        throw createUnsupportedError('file output not supported in browser');
-      }
-
-      fs.mkdirSync(path.dirname(options.reporterOptions.output), {
-        recursive: true
-      });
-      self.fileStream = fs.createWriteStream(options.reporterOptions.output);
-    }
-
-    // get the suite name from the reporter options (if provided)
-    suiteName = options.reporterOptions.suiteName;
-  }
-
-  // fall back to the default suite name
-  suiteName = suiteName || DEFAULT_SUITE_NAME;
-
-  runner.on(EVENT_TEST_PENDING, function(test) {
-    tests.push(test);
-  });
-
-  runner.on(EVENT_TEST_PASS, function(test) {
-    tests.push(test);
-  });
-
-  runner.on(EVENT_TEST_FAIL, function(test) {
-    tests.push(test);
-  });
-
-  runner.once(EVENT_RUN_END, function() {
-    self.write(
-      tag(
-        'testsuite',
-        {
-          name: suiteName,
-          tests: stats.tests,
-          failures: 0,
-          errors: stats.failures,
-          skipped: stats.tests - stats.failures - stats.passes,
-          timestamp: new Date().toUTCString(),
-          time: stats.duration / 1000 || 0
-        },
-        false
-      )
-    );
-
-    tests.forEach(function(t) {
-      self.test(t);
-    });
-
-    self.write('</testsuite>');
-  });
-}
-
-/**
- * Inherit from `Base.prototype`.
- */
-inherits(XUnit, Base);
-
-/**
- * Override done to close the stream (if it's a file).
- *
- * @param failures
- * @param {Function} fn
- */
-XUnit.prototype.done = function(failures, fn) {
-  if (this.fileStream) {
-    this.fileStream.end(function() {
-      fn(failures);
-    });
-  } else {
-    fn(failures);
-  }
-};
-
-/**
- * Write out the given line.
- *
- * @param {string} line
- */
-XUnit.prototype.write = function(line) {
-  if (this.fileStream) {
-    this.fileStream.write(line + '\n');
-  } else if (typeof process === 'object' && process.stdout) {
-    process.stdout.write(line + '\n');
-  } else {
-    Base.consoleLog(line);
-  }
-};
-
-/**
- * Output tag for the given `test.`
- *
- * @param {Test} test
- */
-XUnit.prototype.test = function(test) {
-  Base.useColors = false;
-
-  var attrs = {
-    classname: test.parent.fullTitle(),
-    name: test.title,
-    time: test.duration / 1000 || 0
-  };
-
-  if (test.state === STATE_FAILED) {
-    var err = test.err;
-    var diff =
-      !Base.hideDiff && Base.showDiff(err)
-        ? '\n' + Base.generateDiff(err.actual, err.expected)
-        : '';
-    this.write(
-      tag(
-        'testcase',
-        attrs,
-        false,
-        tag(
-          'failure',
-          {},
-          false,
-          escape(err.message) + escape(diff) + '\n' + escape(err.stack)
-        )
-      )
-    );
-  } else if (test.isPending()) {
-    this.write(tag('testcase', attrs, false, tag('skipped', {}, true)));
-  } else {
-    this.write(tag('testcase', attrs, true));
-  }
-};
-
-/**
- * HTML tag helper.
- *
- * @param name
- * @param attrs
- * @param close
- * @param content
- * @return {string}
- */
-function tag(name, attrs, close, content) {
-  var end = close ? '/>' : '>';
-  var pairs = [];
-  var tag;
-
-  for (var key in attrs) {
-    if (Object.prototype.hasOwnProperty.call(attrs, key)) {
-      pairs.push(key + '="' + escape(attrs[key]) + '"');
-    }
-  }
-
-  tag = '<' + name + (pairs.length ? ' ' + pairs.join(' ') : '') + end;
-  if (content) {
-    tag += content + '</' + name + end;
-  }
-  return tag;
-}
-
-XUnit.description = 'XUnit-compatible XML output';
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"../errors":6,"../runnable":33,"../runner":34,"../utils":38,"./base":17,"_process":67,"fs":42,"path":42}],33:[function(require,module,exports){
-(function (global){
-'use strict';
-
-var EventEmitter = require('events').EventEmitter;
-var Pending = require('./pending');
-var debug = require('debug')('mocha:runnable');
-var milliseconds = require('ms');
-var utils = require('./utils');
-var errors = require('./errors');
-var createInvalidExceptionError = errors.createInvalidExceptionError;
-var createMultipleDoneError = errors.createMultipleDoneError;
-
-/**
- * Save timer references to avoid Sinon interfering (see GH-237).
- */
-var Date = global.Date;
-var setTimeout = global.setTimeout;
-var clearTimeout = global.clearTimeout;
-var toString = Object.prototype.toString;
-
-module.exports = Runnable;
-
-/**
- * Initialize a new `Runnable` with the given `title` and callback `fn`.
- *
- * @class
- * @extends external:EventEmitter
- * @public
- * @param {String} title
- * @param {Function} fn
- */
-function Runnable(title, fn) {
-  this.title = title;
-  this.fn = fn;
-  this.body = (fn || '').toString();
-  this.async = fn && fn.length;
-  this.sync = !this.async;
-  this._timeout = 2000;
-  this._slow = 75;
-  this._retries = -1;
-  this.reset();
-}
-
-/**
- * Inherit from `EventEmitter.prototype`.
- */
-utils.inherits(Runnable, EventEmitter);
-
-/**
- * Resets the state initially or for a next run.
- */
-Runnable.prototype.reset = function() {
-  this.timedOut = false;
-  this._currentRetry = 0;
-  this.pending = false;
-  delete this.state;
-  delete this.err;
-};
-
-/**
- * Get current timeout value in msecs.
- *
- * @private
- * @returns {number} current timeout threshold value
- */
-/**
- * @summary
- * Set timeout threshold value (msecs).
- *
- * @description
- * A string argument can use shorthand (e.g., "2s") and will be converted.
- * The value will be clamped to range [<code>0</code>, <code>2^<sup>31</sup>-1</code>].
- * If clamped value matches either range endpoint, timeouts will be disabled.
- *
- * @private
- * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout#Maximum_delay_value}
- * @param {number|string} ms - Timeout threshold value.
- * @returns {Runnable} this
- * @chainable
- */
-Runnable.prototype.timeout = function(ms) {
-  if (!arguments.length) {
-    return this._timeout;
-  }
-  if (typeof ms === 'string') {
-    ms = milliseconds(ms);
-  }
-
-  // Clamp to range
-  var INT_MAX = Math.pow(2, 31) - 1;
-  var range = [0, INT_MAX];
-  ms = utils.clamp(ms, range);
-
-  // see #1652 for reasoning
-  if (ms === range[0] || ms === range[1]) {
-    this._timeout = 0;
-  } else {
-    this._timeout = ms;
-  }
-  debug('timeout %d', this._timeout);
-
-  if (this.timer) {
-    this.resetTimeout();
-  }
-  return this;
-};
-
-/**
- * Set or get slow `ms`.
- *
- * @private
- * @param {number|string} ms
- * @return {Runnable|number} ms or Runnable instance.
- */
-Runnable.prototype.slow = function(ms) {
-  if (!arguments.length || typeof ms === 'undefined') {
-    return this._slow;
-  }
-  if (typeof ms === 'string') {
-    ms = milliseconds(ms);
-  }
-  debug('slow %d', ms);
-  this._slow = ms;
-  return this;
-};
-
-/**
- * Halt and mark as pending.
- *
- * @memberof Mocha.Runnable
- * @public
- */
-Runnable.prototype.skip = function() {
-  this.pending = true;
-  throw new Pending('sync skip; aborting execution');
-};
-
-/**
- * Check if this runnable or its parent suite is marked as pending.
- *
- * @private
- */
-Runnable.prototype.isPending = function() {
-  return this.pending || (this.parent && this.parent.isPending());
-};
-
-/**
- * Return `true` if this Runnable has failed.
- * @return {boolean}
- * @private
- */
-Runnable.prototype.isFailed = function() {
-  return !this.isPending() && this.state === constants.STATE_FAILED;
-};
-
-/**
- * Return `true` if this Runnable has passed.
- * @return {boolean}
- * @private
- */
-Runnable.prototype.isPassed = function() {
-  return !this.isPending() && this.state === constants.STATE_PASSED;
-};
-
-/**
- * Set or get number of retries.
- *
- * @private
- */
-Runnable.prototype.retries = function(n) {
-  if (!arguments.length) {
-    return this._retries;
-  }
-  this._retries = n;
-};
-
-/**
- * Set or get current retry
- *
- * @private
- */
-Runnable.prototype.currentRetry = function(n) {
-  if (!arguments.length) {
-    return this._currentRetry;
-  }
-  this._currentRetry = n;
-};
-
-/**
- * Return the full title generated by recursively concatenating the parent's
- * full title.
- *
- * @memberof Mocha.Runnable
- * @public
- * @return {string}
- */
-Runnable.prototype.fullTitle = function() {
-  return this.titlePath().join(' ');
-};
-
-/**
- * Return the title path generated by concatenating the parent's title path with the title.
- *
- * @memberof Mocha.Runnable
- * @public
- * @return {string}
- */
-Runnable.prototype.titlePath = function() {
-  return this.parent.titlePath().concat([this.title]);
-};
-
-/**
- * Clear the timeout.
- *
- * @private
- */
-Runnable.prototype.clearTimeout = function() {
-  clearTimeout(this.timer);
-};
-
-/**
- * Reset the timeout.
- *
- * @private
- */
-Runnable.prototype.resetTimeout = function() {
-  var self = this;
-  var ms = this.timeout();
-
-  if (ms === 0) {
-    return;
-  }
-  this.clearTimeout();
-  this.timer = setTimeout(function() {
-    if (self.timeout() === 0) {
-      return;
-    }
-    self.callback(self._timeoutError(ms));
-    self.timedOut = true;
-  }, ms);
-};
-
-/**
- * Set or get a list of whitelisted globals for this test run.
- *
- * @private
- * @param {string[]} globals
- */
-Runnable.prototype.globals = function(globals) {
-  if (!arguments.length) {
-    return this._allowedGlobals;
-  }
-  this._allowedGlobals = globals;
-};
-
-/**
- * Run the test and invoke `fn(err)`.
- *
- * @param {Function} fn
- * @private
- */
-Runnable.prototype.run = function(fn) {
-  var self = this;
-  var start = new Date();
-  var ctx = this.ctx;
-  var finished;
-  var errorWasHandled = false;
-
-  if (this.isPending()) return fn();
-
-  // Sometimes the ctx exists, but it is not runnable
-  if (ctx && ctx.runnable) {
-    ctx.runnable(this);
-  }
-
-  // called multiple times
-  function multiple(err) {
-    if (errorWasHandled) {
-      return;
-    }
-    errorWasHandled = true;
-    self.emit('error', createMultipleDoneError(self, err));
-  }
-
-  // finished
-  function done(err) {
-    var ms = self.timeout();
-    if (self.timedOut) {
-      return;
-    }
-
-    if (finished) {
-      return multiple(err);
-    }
-
-    self.clearTimeout();
-    self.duration = new Date() - start;
-    finished = true;
-    if (!err && self.duration > ms && ms > 0) {
-      err = self._timeoutError(ms);
-    }
-    fn(err);
-  }
-
-  // for .resetTimeout() and Runner#uncaught()
-  this.callback = done;
-
-  if (this.fn && typeof this.fn.call !== 'function') {
-    done(
-      new TypeError(
-        'A runnable must be passed a function as its second argument.'
-      )
-    );
-    return;
-  }
-
-  // explicit async with `done` argument
-  if (this.async) {
-    this.resetTimeout();
-
-    // allows skip() to be used in an explicit async context
-    this.skip = function asyncSkip() {
-      this.pending = true;
-      done();
-      // halt execution, the uncaught handler will ignore the failure.
-      throw new Pending('async skip; aborting execution');
-    };
-
-    try {
-      callFnAsync(this.fn);
-    } catch (err) {
-      // handles async runnables which actually run synchronously
-      errorWasHandled = true;
-      if (err instanceof Pending) {
-        return; // done() is already called in this.skip()
-      } else if (this.allowUncaught) {
-        throw err;
-      }
-      done(Runnable.toValueOrError(err));
-    }
-    return;
-  }
-
-  // sync or promise-returning
-  try {
-    callFn(this.fn);
-  } catch (err) {
-    errorWasHandled = true;
-    if (err instanceof Pending) {
-      return done();
-    } else if (this.allowUncaught) {
-      throw err;
-    }
-    done(Runnable.toValueOrError(err));
-  }
-
-  function callFn(fn) {
-    var result = fn.call(ctx);
-    if (result && typeof result.then === 'function') {
-      self.resetTimeout();
-      result.then(
-        function() {
-          done();
-          // Return null so libraries like bluebird do not warn about
-          // subsequently constructed Promises.
-          return null;
-        },
-        function(reason) {
-          done(reason || new Error('Promise rejected with no or falsy reason'));
-        }
-      );
-    } else {
-      if (self.asyncOnly) {
-        return done(
-          new Error(
-            '--async-only option in use without declaring `done()` or returning a promise'
-          )
-        );
-      }
-
-      done();
-    }
-  }
-
-  function callFnAsync(fn) {
-    var result = fn.call(ctx, function(err) {
-      if (err instanceof Error || toString.call(err) === '[object Error]') {
-        return done(err);
-      }
-      if (err) {
-        if (Object.prototype.toString.call(err) === '[object Object]') {
-          return done(
-            new Error('done() invoked with non-Error: ' + JSON.stringify(err))
-          );
-        }
-        return done(new Error('done() invoked with non-Error: ' + err));
-      }
-      if (result && utils.isPromise(result)) {
-        return done(
-          new Error(
-            'Resolution method is overspecified. Specify a callback *or* return a Promise; not both.'
-          )
-        );
-      }
-
-      done();
-    });
-  }
-};
-
-/**
- * Instantiates a "timeout" error
- *
- * @param {number} ms - Timeout (in milliseconds)
- * @returns {Error} a "timeout" error
- * @private
- */
-Runnable.prototype._timeoutError = function(ms) {
-  var msg =
-    'Timeout of ' +
-    ms +
-    'ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.';
-  if (this.file) {
-    msg += ' (' + this.file + ')';
-  }
-  return new Error(msg);
-};
-
-var constants = utils.defineConstants(
-  /**
-   * {@link Runnable}-related constants.
-   * @public
-   * @memberof Runnable
-   * @readonly
-   * @static
-   * @alias constants
-   * @enum {string}
-   */
-  {
-    /**
-     * Value of `state` prop when a `Runnable` has failed
-     */
-    STATE_FAILED: 'failed',
-    /**
-     * Value of `state` prop when a `Runnable` has passed
-     */
-    STATE_PASSED: 'passed',
-    /**
-     * Value of `state` prop when a `Runnable` has been skipped by user
-     */
-    STATE_PENDING: 'pending'
-  }
-);
-
-/**
- * Given `value`, return identity if truthy, otherwise create an "invalid exception" error and return that.
- * @param {*} [value] - Value to return, if present
- * @returns {*|Error} `value`, otherwise an `Error`
- * @private
- */
-Runnable.toValueOrError = function(value) {
-  return (
-    value ||
-    createInvalidExceptionError(
-      'Runnable failed with falsy or undefined exception. Please throw an Error instead.',
-      value
-    )
-  );
-};
-
-Runnable.constants = constants;
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./errors":6,"./pending":16,"./utils":38,"debug":45,"events":50,"ms":58}],34:[function(require,module,exports){
-(function (process,global){
-'use strict';
-
-/**
- * Module dependencies.
- */
-var util = require('util');
-var EventEmitter = require('events').EventEmitter;
-var Pending = require('./pending');
-var utils = require('./utils');
-var inherits = utils.inherits;
-var debug = require('debug')('mocha:runner');
-var Runnable = require('./runnable');
-var Suite = require('./suite');
-var HOOK_TYPE_BEFORE_EACH = Suite.constants.HOOK_TYPE_BEFORE_EACH;
-var HOOK_TYPE_AFTER_EACH = Suite.constants.HOOK_TYPE_AFTER_EACH;
-var HOOK_TYPE_AFTER_ALL = Suite.constants.HOOK_TYPE_AFTER_ALL;
-var HOOK_TYPE_BEFORE_ALL = Suite.constants.HOOK_TYPE_BEFORE_ALL;
-var EVENT_ROOT_SUITE_RUN = Suite.constants.EVENT_ROOT_SUITE_RUN;
-var STATE_FAILED = Runnable.constants.STATE_FAILED;
-var STATE_PASSED = Runnable.constants.STATE_PASSED;
-var STATE_PENDING = Runnable.constants.STATE_PENDING;
-var dQuote = utils.dQuote;
-var sQuote = utils.sQuote;
-var stackFilter = utils.stackTraceFilter();
-var stringify = utils.stringify;
-var type = utils.type;
-var errors = require('./errors');
-var createInvalidExceptionError = errors.createInvalidExceptionError;
-var createUnsupportedError = errors.createUnsupportedError;
-var createFatalError = errors.createFatalError;
-
-/**
- * Non-enumerable globals.
- * @readonly
- */
-var globals = [
-  'setTimeout',
-  'clearTimeout',
-  'setInterval',
-  'clearInterval',
-  'XMLHttpRequest',
-  'Date',
-  'setImmediate',
-  'clearImmediate'
-];
-
-var constants = utils.defineConstants(
-  /**
-   * {@link Runner}-related constants.
-   * @public
-   * @memberof Runner
-   * @readonly
-   * @alias constants
-   * @static
-   * @enum {string}
-   */
-  {
-    /**
-     * Emitted when {@link Hook} execution begins
-     */
-    EVENT_HOOK_BEGIN: 'hook',
-    /**
-     * Emitted when {@link Hook} execution ends
-     */
-    EVENT_HOOK_END: 'hook end',
-    /**
-     * Emitted when Root {@link Suite} execution begins (all files have been parsed and hooks/tests are ready for execution)
-     */
-    EVENT_RUN_BEGIN: 'start',
-    /**
-     * Emitted when Root {@link Suite} execution has been delayed via `delay` option
-     */
-    EVENT_DELAY_BEGIN: 'waiting',
-    /**
-     * Emitted when delayed Root {@link Suite} execution is triggered by user via `global.run()`
-     */
-    EVENT_DELAY_END: 'ready',
-    /**
-     * Emitted when Root {@link Suite} execution ends
-     */
-    EVENT_RUN_END: 'end',
-    /**
-     * Emitted when {@link Suite} execution begins
-     */
-    EVENT_SUITE_BEGIN: 'suite',
-    /**
-     * Emitted when {@link Suite} execution ends
-     */
-    EVENT_SUITE_END: 'suite end',
-    /**
-     * Emitted when {@link Test} execution begins
-     */
-    EVENT_TEST_BEGIN: 'test',
-    /**
-     * Emitted when {@link Test} execution ends
-     */
-    EVENT_TEST_END: 'test end',
-    /**
-     * Emitted when {@link Test} execution fails
-     */
-    EVENT_TEST_FAIL: 'fail',
-    /**
-     * Emitted when {@link Test} execution succeeds
-     */
-    EVENT_TEST_PASS: 'pass',
-    /**
-     * Emitted when {@link Test} becomes pending
-     */
-    EVENT_TEST_PENDING: 'pending',
-    /**
-     * Emitted when {@link Test} execution has failed, but will retry
-     */
-    EVENT_TEST_RETRY: 'retry',
-    /**
-     * Initial state of Runner
-     */
-    STATE_IDLE: 'idle',
-    /**
-     * State set to this value when the Runner has started running
-     */
-    STATE_RUNNING: 'running',
-    /**
-     * State set to this value when the Runner has stopped
-     */
-    STATE_STOPPED: 'stopped'
-  }
-);
-
-module.exports = Runner;
-
-/**
- * Initialize a `Runner` at the Root {@link Suite}, which represents a hierarchy of {@link Suite|Suites} and {@link Test|Tests}.
- *
- * @extends external:EventEmitter
- * @public
- * @class
- * @param {Suite} suite - Root suite
- * @param {Object|boolean} [opts] - Options. If `boolean`, whether or not to delay execution of root suite until ready (for backwards compatibility).
- * @param {boolean} [opts.delay] - Whether to delay execution of root suite until ready.
- * @param {boolean} [opts.cleanReferencesAfterRun] - Whether to clean references to test fns and hooks when a suite is done.
- */
-function Runner(suite, opts) {
-  if (opts === undefined) {
-    opts = {};
-  }
-  if (typeof opts === 'boolean') {
-    this._delay = opts;
-    opts = {};
-  } else {
-    this._delay = opts.delay;
-  }
-  var self = this;
-  this._globals = [];
-  this._abort = false;
-  this.suite = suite;
-  this._opts = opts;
-  this.state = constants.STATE_IDLE;
-  this.total = suite.total();
-  this.failures = 0;
-  this._eventListeners = [];
-  this.on(constants.EVENT_TEST_END, function(test) {
-    if (test.type === 'test' && test.retriedTest() && test.parent) {
-      var idx =
-        test.parent.tests && test.parent.tests.indexOf(test.retriedTest());
-      if (idx > -1) test.parent.tests[idx] = test;
-    }
-    self.checkGlobals(test);
-  });
-  this.on(constants.EVENT_HOOK_END, function(hook) {
-    self.checkGlobals(hook);
-  });
-  this._defaultGrep = /.*/;
-  this.grep(this._defaultGrep);
-  this.globals(this.globalProps());
-
-  this.uncaught = this._uncaught.bind(this);
-}
-
-/**
- * Wrapper for setImmediate, process.nextTick, or browser polyfill.
- *
- * @param {Function} fn
- * @private
- */
-Runner.immediately = global.setImmediate || process.nextTick;
-
-/**
- * Inherit from `EventEmitter.prototype`.
- */
-inherits(Runner, EventEmitter);
-
-/**
- * Replacement for `target.on(eventName, listener)` that does bookkeeping to remove them when this runner instance is disposed.
- * @param {EventEmitter} target - The `EventEmitter`
- * @param {string} eventName - The event name
- * @param {string} fn - Listener function
- * @private
- */
-Runner.prototype._addEventListener = function(target, eventName, listener) {
-  target.on(eventName, listener);
-  this._eventListeners.push([target, eventName, listener]);
-};
-
-/**
- * Replacement for `target.removeListener(eventName, listener)` that also updates the bookkeeping.
- * @param {EventEmitter} target - The `EventEmitter`
- * @param {string} eventName - The event anme
- * @param {function} listener - Listener function
- * @private
- */
-Runner.prototype._removeEventListener = function(target, eventName, listener) {
-  var eventListenerIndex = -1;
-  for (var i = 0; i < this._eventListeners.length; i++) {
-    var eventListenerDescriptor = this._eventListeners[i];
-    if (
-      eventListenerDescriptor[0] === target &&
-      eventListenerDescriptor[1] === eventName &&
-      eventListenerDescriptor[2] === listener
-    ) {
-      eventListenerIndex = i;
-      break;
-    }
-  }
-  if (eventListenerIndex !== -1) {
-    var removedListener = this._eventListeners.splice(eventListenerIndex, 1)[0];
-    removedListener[0].removeListener(removedListener[1], removedListener[2]);
-  }
-};
-
-/**
- * Removes all event handlers set during a run on this instance.
- * Remark: this does _not_ clean/dispose the tests or suites themselves.
- */
-Runner.prototype.dispose = function() {
-  this.removeAllListeners();
-  this._eventListeners.forEach(function(eventListenerDescriptor) {
-    eventListenerDescriptor[0].removeListener(
-      eventListenerDescriptor[1],
-      eventListenerDescriptor[2]
-    );
-  });
-};
-
-/**
- * Run tests with full titles matching `re`. Updates runner.total
- * with number of tests matched.
- *
- * @public
- * @memberof Runner
- * @param {RegExp} re
- * @param {boolean} invert
- * @return {Runner} Runner instance.
- */
-Runner.prototype.grep = function(re, invert) {
-  debug('grep(): setting to %s', re);
-  this._grep = re;
-  this._invert = invert;
-  this.total = this.grepTotal(this.suite);
-  return this;
-};
-
-/**
- * Returns the number of tests matching the grep search for the
- * given suite.
- *
- * @memberof Runner
- * @public
- * @param {Suite} suite
- * @return {number}
- */
-Runner.prototype.grepTotal = function(suite) {
-  var self = this;
-  var total = 0;
-
-  suite.eachTest(function(test) {
-    var match = self._grep.test(test.fullTitle());
-    if (self._invert) {
-      match = !match;
-    }
-    if (match) {
-      total++;
-    }
-  });
-
-  return total;
-};
-
-/**
- * Return a list of global properties.
- *
- * @return {Array}
- * @private
- */
-Runner.prototype.globalProps = function() {
-  var props = Object.keys(global);
-
-  // non-enumerables
-  for (var i = 0; i < globals.length; ++i) {
-    if (~props.indexOf(globals[i])) {
-      continue;
-    }
-    props.push(globals[i]);
-  }
-
-  return props;
-};
-
-/**
- * Allow the given `arr` of globals.
- *
- * @public
- * @memberof Runner
- * @param {Array} arr
- * @return {Runner} Runner instance.
- */
-Runner.prototype.globals = function(arr) {
-  if (!arguments.length) {
-    return this._globals;
-  }
-  debug('globals(): setting to %O', arr);
-  this._globals = this._globals.concat(arr);
-  return this;
-};
-
-/**
- * Check for global variable leaks.
- *
- * @private
- */
-Runner.prototype.checkGlobals = function(test) {
-  if (!this.checkLeaks) {
-    return;
-  }
-  var ok = this._globals;
-
-  var globals = this.globalProps();
-  var leaks;
-
-  if (test) {
-    ok = ok.concat(test._allowedGlobals || []);
-  }
-
-  if (this.prevGlobalsLength === globals.length) {
-    return;
-  }
-  this.prevGlobalsLength = globals.length;
-
-  leaks = filterLeaks(ok, globals);
-  this._globals = this._globals.concat(leaks);
-
-  if (leaks.length) {
-    var msg = 'global leak(s) detected: %s';
-    var error = new Error(util.format(msg, leaks.map(sQuote).join(', ')));
-    this.fail(test, error);
-  }
-};
-
-/**
- * Fail the given `test`.
- *
- * @private
- * @param {Runnable} test
- * @param {Error} err
- * @param {boolean} [force=false] - Whether to fail a pending test.
- */
-Runner.prototype.fail = function(test, err, force) {
-  force = force === true;
-  if (test.isPending() && !force) {
-    return;
-  }
-  if (this.state === constants.STATE_STOPPED) {
-    if (err.code === errors.constants.MULTIPLE_DONE) {
-      throw err;
-    }
-    throw createFatalError(
-      'Test failed after root suite execution completed!',
-      err
-    );
-  }
-
-  ++this.failures;
-  debug('total number of failures: %d', this.failures);
-  test.state = STATE_FAILED;
-
-  if (!isError(err)) {
-    err = thrown2Error(err);
-  }
-
-  try {
-    err.stack =
-      this.fullStackTrace || !err.stack ? err.stack : stackFilter(err.stack);
-  } catch (ignore) {
-    // some environments do not take kindly to monkeying with the stack
-  }
-
-  this.emit(constants.EVENT_TEST_FAIL, test, err);
-};
-
-/**
- * Fail the given `hook` with `err`.
- *
- * Hook failures work in the following pattern:
- * - If bail, run corresponding `after each` and `after` hooks,
- *   then exit
- * - Failed `before` hook skips all tests in a suite and subsuites,
- *   but jumps to corresponding `after` hook
- * - Failed `before each` hook skips remaining tests in a
- *   suite and jumps to corresponding `after each` hook,
- *   which is run only once
- * - Failed `after` hook does not alter execution order
- * - Failed `after each` hook skips remaining tests in a
- *   suite and subsuites, but executes other `after each`
- *   hooks
- *
- * @private
- * @param {Hook} hook
- * @param {Error} err
- */
-Runner.prototype.failHook = function(hook, err) {
-  hook.originalTitle = hook.originalTitle || hook.title;
-  if (hook.ctx && hook.ctx.currentTest) {
-    hook.title =
-      hook.originalTitle + ' for ' + dQuote(hook.ctx.currentTest.title);
-  } else {
-    var parentTitle;
-    if (hook.parent.title) {
-      parentTitle = hook.parent.title;
-    } else {
-      parentTitle = hook.parent.root ? '{root}' : '';
-    }
-    hook.title = hook.originalTitle + ' in ' + dQuote(parentTitle);
-  }
-
-  this.fail(hook, err);
-};
-
-/**
- * Run hook `name` callbacks and then invoke `fn()`.
- *
- * @private
- * @param {string} name
- * @param {Function} fn
- */
-
-Runner.prototype.hook = function(name, fn) {
-  var suite = this.suite;
-  var hooks = suite.getHooks(name);
-  var self = this;
-
-  function next(i) {
-    var hook = hooks[i];
-    if (!hook) {
-      return fn();
-    }
-    self.currentRunnable = hook;
-
-    if (name === HOOK_TYPE_BEFORE_ALL) {
-      hook.ctx.currentTest = hook.parent.tests[0];
-    } else if (name === HOOK_TYPE_AFTER_ALL) {
-      hook.ctx.currentTest = hook.parent.tests[hook.parent.tests.length - 1];
-    } else {
-      hook.ctx.currentTest = self.test;
-    }
-
-    hook.allowUncaught = self.allowUncaught;
-
-    self.emit(constants.EVENT_HOOK_BEGIN, hook);
-
-    if (!hook.listeners('error').length) {
-      self._addEventListener(hook, 'error', function(err) {
-        self.failHook(hook, err);
-      });
-    }
-
-    hook.run(function cbHookRun(err) {
-      var testError = hook.error();
-      if (testError) {
-        self.fail(self.test, testError);
-      }
-      // conditional skip
-      if (hook.pending) {
-        if (name === HOOK_TYPE_AFTER_EACH) {
-          // TODO define and implement use case
-          if (self.test) {
-            self.test.pending = true;
-          }
-        } else if (name === HOOK_TYPE_BEFORE_EACH) {
-          if (self.test) {
-            self.test.pending = true;
-          }
-          self.emit(constants.EVENT_HOOK_END, hook);
-          hook.pending = false; // activates hook for next test
-          return fn(new Error('abort hookDown'));
-        } else if (name === HOOK_TYPE_BEFORE_ALL) {
-          suite.tests.forEach(function(test) {
-            test.pending = true;
-          });
-          suite.suites.forEach(function(suite) {
-            suite.pending = true;
-          });
-          hooks = [];
-        } else {
-          hook.pending = false;
-          var errForbid = createUnsupportedError('`this.skip` forbidden');
-          self.failHook(hook, errForbid);
-          return fn(errForbid);
-        }
-      } else if (err) {
-        self.failHook(hook, err);
-        // stop executing hooks, notify callee of hook err
-        return fn(err);
-      }
-      self.emit(constants.EVENT_HOOK_END, hook);
-      delete hook.ctx.currentTest;
-      next(++i);
-    });
-  }
-
-  Runner.immediately(function() {
-    next(0);
-  });
-};
-
-/**
- * Run hook `name` for the given array of `suites`
- * in order, and callback `fn(err, errSuite)`.
- *
- * @private
- * @param {string} name
- * @param {Array} suites
- * @param {Function} fn
- */
-Runner.prototype.hooks = function(name, suites, fn) {
-  var self = this;
-  var orig = this.suite;
-
-  function next(suite) {
-    self.suite = suite;
-
-    if (!suite) {
-      self.suite = orig;
-      return fn();
-    }
-
-    self.hook(name, function(err) {
-      if (err) {
-        var errSuite = self.suite;
-        self.suite = orig;
-        return fn(err, errSuite);
-      }
-
-      next(suites.pop());
-    });
-  }
-
-  next(suites.pop());
-};
-
-/**
- * Run hooks from the top level down.
- *
- * @param {String} name
- * @param {Function} fn
- * @private
- */
-Runner.prototype.hookUp = function(name, fn) {
-  var suites = [this.suite].concat(this.parents()).reverse();
-  this.hooks(name, suites, fn);
-};
-
-/**
- * Run hooks from the bottom up.
- *
- * @param {String} name
- * @param {Function} fn
- * @private
- */
-Runner.prototype.hookDown = function(name, fn) {
-  var suites = [this.suite].concat(this.parents());
-  this.hooks(name, suites, fn);
-};
-
-/**
- * Return an array of parent Suites from
- * closest to furthest.
- *
- * @return {Array}
- * @private
- */
-Runner.prototype.parents = function() {
-  var suite = this.suite;
-  var suites = [];
-  while (suite.parent) {
-    suite = suite.parent;
-    suites.push(suite);
-  }
-  return suites;
-};
-
-/**
- * Run the current test and callback `fn(err)`.
- *
- * @param {Function} fn
- * @private
- */
-Runner.prototype.runTest = function(fn) {
-  var self = this;
-  var test = this.test;
-
-  if (!test) {
-    return;
-  }
-
-  if (this.asyncOnly) {
-    test.asyncOnly = true;
-  }
-  this._addEventListener(test, 'error', function(err) {
-    self.fail(test, err);
-  });
-  if (this.allowUncaught) {
-    test.allowUncaught = true;
-    return test.run(fn);
-  }
-  try {
-    test.run(fn);
-  } catch (err) {
-    fn(err);
-  }
-};
-
-/**
- * Run tests in the given `suite` and invoke the callback `fn()` when complete.
- *
- * @private
- * @param {Suite} suite
- * @param {Function} fn
- */
-Runner.prototype.runTests = function(suite, fn) {
-  var self = this;
-  var tests = suite.tests.slice();
-  var test;
-
-  function hookErr(_, errSuite, after) {
-    // before/after Each hook for errSuite failed:
-    var orig = self.suite;
-
-    // for failed 'after each' hook start from errSuite parent,
-    // otherwise start from errSuite itself
-    self.suite = after ? errSuite.parent : errSuite;
-
-    if (self.suite) {
-      // call hookUp afterEach
-      self.hookUp(HOOK_TYPE_AFTER_EACH, function(err2, errSuite2) {
-        self.suite = orig;
-        // some hooks may fail even now
-        if (err2) {
-          return hookErr(err2, errSuite2, true);
-        }
-        // report error suite
-        fn(errSuite);
-      });
-    } else {
-      // there is no need calling other 'after each' hooks
-      self.suite = orig;
-      fn(errSuite);
-    }
-  }
-
-  function next(err, errSuite) {
-    // if we bail after first err
-    if (self.failures && suite._bail) {
-      tests = [];
-    }
-
-    if (self._abort) {
-      return fn();
-    }
-
-    if (err) {
-      return hookErr(err, errSuite, true);
-    }
-
-    // next test
-    test = tests.shift();
-
-    // all done
-    if (!test) {
-      return fn();
-    }
-
-    // grep
-    var match = self._grep.test(test.fullTitle());
-    if (self._invert) {
-      match = !match;
-    }
-    if (!match) {
-      // Run immediately only if we have defined a grep. When we
-      // define a grep — It can cause maximum callstack error if
-      // the grep is doing a large recursive loop by neglecting
-      // all tests. The run immediately function also comes with
-      // a performance cost. So we don't want to run immediately
-      // if we run the whole test suite, because running the whole
-      // test suite don't do any immediate recursive loops. Thus,
-      // allowing a JS runtime to breathe.
-      if (self._grep !== self._defaultGrep) {
-        Runner.immediately(next);
-      } else {
-        next();
-      }
-      return;
-    }
-
-    // static skip, no hooks are executed
-    if (test.isPending()) {
-      if (self.forbidPending) {
-        self.fail(test, new Error('Pending test forbidden'), true);
-      } else {
-        test.state = STATE_PENDING;
-        self.emit(constants.EVENT_TEST_PENDING, test);
-      }
-      self.emit(constants.EVENT_TEST_END, test);
-      return next();
-    }
-
-    // execute test and hook(s)
-    self.emit(constants.EVENT_TEST_BEGIN, (self.test = test));
-    self.hookDown(HOOK_TYPE_BEFORE_EACH, function(err, errSuite) {
-      // conditional skip within beforeEach
-      if (test.isPending()) {
-        if (self.forbidPending) {
-          self.fail(test, new Error('Pending test forbidden'), true);
-        } else {
-          test.state = STATE_PENDING;
-          self.emit(constants.EVENT_TEST_PENDING, test);
-        }
-        self.emit(constants.EVENT_TEST_END, test);
-        // skip inner afterEach hooks below errSuite level
-        var origSuite = self.suite;
-        self.suite = errSuite || self.suite;
-        return self.hookUp(HOOK_TYPE_AFTER_EACH, function(e, eSuite) {
-          self.suite = origSuite;
-          next(e, eSuite);
-        });
-      }
-      if (err) {
-        return hookErr(err, errSuite, false);
-      }
-      self.currentRunnable = self.test;
-      self.runTest(function(err) {
-        test = self.test;
-        // conditional skip within it
-        if (test.pending) {
-          if (self.forbidPending) {
-            self.fail(test, new Error('Pending test forbidden'), true);
-          } else {
-            test.state = STATE_PENDING;
-            self.emit(constants.EVENT_TEST_PENDING, test);
-          }
-          self.emit(constants.EVENT_TEST_END, test);
-          return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
-        } else if (err) {
-          var retry = test.currentRetry();
-          if (retry < test.retries()) {
-            var clonedTest = test.clone();
-            clonedTest.currentRetry(retry + 1);
-            tests.unshift(clonedTest);
-
-            self.emit(constants.EVENT_TEST_RETRY, test, err);
-
-            // Early return + hook trigger so that it doesn't
-            // increment the count wrong
-            return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
-          } else {
-            self.fail(test, err);
-          }
-          self.emit(constants.EVENT_TEST_END, test);
-          return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
-        }
-
-        test.state = STATE_PASSED;
-        self.emit(constants.EVENT_TEST_PASS, test);
-        self.emit(constants.EVENT_TEST_END, test);
-        self.hookUp(HOOK_TYPE_AFTER_EACH, next);
-      });
-    });
-  }
-
-  this.next = next;
-  this.hookErr = hookErr;
-  next();
-};
-
-/**
- * Run the given `suite` and invoke the callback `fn()` when complete.
- *
- * @private
- * @param {Suite} suite
- * @param {Function} fn
- */
-Runner.prototype.runSuite = function(suite, fn) {
-  var i = 0;
-  var self = this;
-  var total = this.grepTotal(suite);
-
-  debug('runSuite(): running %s', suite.fullTitle());
-
-  if (!total || (self.failures && suite._bail)) {
-    debug('runSuite(): bailing');
-    return fn();
-  }
-
-  this.emit(constants.EVENT_SUITE_BEGIN, (this.suite = suite));
-
-  function next(errSuite) {
-    if (errSuite) {
-      // current suite failed on a hook from errSuite
-      if (errSuite === suite) {
-        // if errSuite is current suite
-        // continue to the next sibling suite
-        return done();
-      }
-      // errSuite is among the parents of current suite
-      // stop execution of errSuite and all sub-suites
-      return done(errSuite);
-    }
-
-    if (self._abort) {
-      return done();
-    }
-
-    var curr = suite.suites[i++];
-    if (!curr) {
-      return done();
-    }
-
-    // Avoid grep neglecting large number of tests causing a
-    // huge recursive loop and thus a maximum call stack error.
-    // See comment in `this.runTests()` for more information.
-    if (self._grep !== self._defaultGrep) {
-      Runner.immediately(function() {
-        self.runSuite(curr, next);
-      });
-    } else {
-      self.runSuite(curr, next);
-    }
-  }
-
-  function done(errSuite) {
-    self.suite = suite;
-    self.nextSuite = next;
-
-    // remove reference to test
-    delete self.test;
-
-    self.hook(HOOK_TYPE_AFTER_ALL, function() {
-      self.emit(constants.EVENT_SUITE_END, suite);
-      fn(errSuite);
-    });
-  }
-
-  this.nextSuite = next;
-
-  this.hook(HOOK_TYPE_BEFORE_ALL, function(err) {
-    if (err) {
-      return done();
-    }
-    self.runTests(suite, next);
-  });
-};
-
-/**
- * Handle uncaught exceptions within runner.
- *
- * This function is bound to the instance as `Runner#uncaught` at instantiation
- * time. It's intended to be listening on the `Process.uncaughtException` event.
- * In order to not leak EE listeners, we need to ensure no more than a single
- * `uncaughtException` listener exists per `Runner`.  The only way to do
- * this--because this function needs the context (and we don't have lambdas)--is
- * to use `Function.prototype.bind`. We need strict equality to unregister and
- * _only_ unregister the _one_ listener we set from the
- * `Process.uncaughtException` event; would be poor form to just remove
- * everything. See {@link Runner#run} for where the event listener is registered
- * and unregistered.
- * @param {Error} err - Some uncaught error
- * @private
- */
-Runner.prototype._uncaught = function(err) {
-  // this is defensive to prevent future developers from mis-calling this function.
-  // it's more likely that it'd be called with the incorrect context--say, the global
-  // `process` object--than it would to be called with a context that is not a "subclass"
-  // of `Runner`.
-  if (!(this instanceof Runner)) {
-    throw createFatalError(
-      'Runner#uncaught() called with invalid context',
-      this
-    );
-  }
-  if (err instanceof Pending) {
-    debug('uncaught(): caught a Pending');
-    return;
-  }
-  // browser does not exit script when throwing in global.onerror()
-  if (this.allowUncaught && !utils.isBrowser()) {
-    debug('uncaught(): bubbling exception due to --allow-uncaught');
-    throw err;
-  }
-
-  if (this.state === constants.STATE_STOPPED) {
-    debug('uncaught(): throwing after run has completed!');
-    throw err;
-  }
-
-  if (err) {
-    debug('uncaught(): got truthy exception %O', err);
-  } else {
-    debug('uncaught(): undefined/falsy exception');
-    err = createInvalidExceptionError(
-      'Caught falsy/undefined exception which would otherwise be uncaught. No stack trace found; try a debugger',
-      err
-    );
-  }
-
-  if (!isError(err)) {
-    err = thrown2Error(err);
-    debug('uncaught(): converted "error" %o to Error', err);
-  }
-  err.uncaught = true;
-
-  var runnable = this.currentRunnable;
-
-  if (!runnable) {
-    runnable = new Runnable('Uncaught error outside test suite');
-    debug('uncaught(): no current Runnable; created a phony one');
-    runnable.parent = this.suite;
-
-    if (this.state === constants.STATE_RUNNING) {
-      debug('uncaught(): failing gracefully');
-      this.fail(runnable, err);
-    } else {
-      // Can't recover from this failure
-      debug('uncaught(): test run has not yet started; unrecoverable');
-      this.emit(constants.EVENT_RUN_BEGIN);
-      this.fail(runnable, err);
-      this.emit(constants.EVENT_RUN_END);
-    }
-
-    return;
-  }
-
-  runnable.clearTimeout();
-
-  if (runnable.isFailed()) {
-    debug('uncaught(): Runnable has already failed');
-    // Ignore error if already failed
-    return;
-  } else if (runnable.isPending()) {
-    debug('uncaught(): pending Runnable wound up failing!');
-    // report 'pending test' retrospectively as failed
-    this.fail(runnable, err, true);
-    return;
-  }
-
-  // we cannot recover gracefully if a Runnable has already passed
-  // then fails asynchronously
-  if (runnable.isPassed()) {
-    debug('uncaught(): Runnable has already passed; bailing gracefully');
-    this.fail(runnable, err);
-    this.abort();
-  } else {
-    debug('uncaught(): forcing Runnable to complete with Error');
-    return runnable.callback(err);
-  }
-};
-
-/**
- * Run the root suite and invoke `fn(failures)`
- * on completion.
- *
- * @public
- * @memberof Runner
- * @param {Function} fn - Callback when finished
- * @param {{files: string[], options: Options}} [opts] - For subclasses
- * @return {Runner} Runner instance.
- */
-Runner.prototype.run = function(fn, opts) {
-  var self = this;
-  var rootSuite = this.suite;
-
-  fn = fn || function() {};
-
-  function start() {
-    debug('run(): starting');
-    // If there is an `only` filter
-    if (rootSuite.hasOnly()) {
-      rootSuite.filterOnly();
-      debug('run(): filtered exclusive Runnables');
-    }
-    self.state = constants.STATE_RUNNING;
-    if (self._delay) {
-      self.emit(constants.EVENT_DELAY_END);
-      debug('run(): "delay" ended');
-    }
-    debug('run(): emitting %s', constants.EVENT_RUN_BEGIN);
-    self.emit(constants.EVENT_RUN_BEGIN);
-    debug('run(): emitted %s', constants.EVENT_RUN_BEGIN);
-
-    self.runSuite(rootSuite, function() {
-      debug(
-        'run(): root suite completed; emitting %s',
-        constants.EVENT_RUN_END
-      );
-      self.emit(constants.EVENT_RUN_END);
-      debug('run(): emitted %s', constants.EVENT_RUN_END);
-    });
-  }
-
-  // references cleanup to avoid memory leaks
-  if (this._opts.cleanReferencesAfterRun) {
-    this.on(constants.EVENT_SUITE_END, function(suite) {
-      suite.cleanReferences();
-    });
-  }
-
-  // callback
-  this.on(constants.EVENT_RUN_END, function() {
-    self.state = constants.STATE_STOPPED;
-    debug(constants.EVENT_RUN_END);
-    debug('run(): emitted %s', constants.EVENT_RUN_END);
-    fn(self.failures);
-  });
-
-  self._removeEventListener(process, 'uncaughtException', self.uncaught);
-  self._addEventListener(process, 'uncaughtException', self.uncaught);
-
-  if (this._delay) {
-    // for reporters, I guess.
-    // might be nice to debounce some dots while we wait.
-    this.emit(constants.EVENT_DELAY_BEGIN, rootSuite);
-    rootSuite.once(EVENT_ROOT_SUITE_RUN, start);
-    debug('run(): waiting for green light due to --delay');
-  } else {
-    Runner.immediately(function() {
-      start();
-    });
-  }
-
-  return this;
-};
-
-/**
- * Cleanly abort execution.
- *
- * @memberof Runner
- * @public
- * @return {Runner} Runner instance.
- */
-Runner.prototype.abort = function() {
-  debug('abort(): aborting');
-  this._abort = true;
-
-  return this;
-};
-
-/**
- * Filter leaks with the given globals flagged as `ok`.
- *
- * @private
- * @param {Array} ok
- * @param {Array} globals
- * @return {Array}
- */
-function filterLeaks(ok, globals) {
-  return globals.filter(function(key) {
-    // Firefox and Chrome exposes iframes as index inside the window object
-    if (/^\d+/.test(key)) {
-      return false;
-    }
-
-    // in firefox
-    // if runner runs in an iframe, this iframe's window.getInterface method
-    // not init at first it is assigned in some seconds
-    if (global.navigator && /^getInterface/.test(key)) {
-      return false;
-    }
-
-    // an iframe could be approached by window[iframeIndex]
-    // in ie6,7,8 and opera, iframeIndex is enumerable, this could cause leak
-    if (global.navigator && /^\d+/.test(key)) {
-      return false;
-    }
-
-    // Opera and IE expose global variables for HTML element IDs (issue #243)
-    if (/^mocha-/.test(key)) {
-      return false;
-    }
-
-    var matched = ok.filter(function(ok) {
-      if (~ok.indexOf('*')) {
-        return key.indexOf(ok.split('*')[0]) === 0;
-      }
-      return key === ok;
-    });
-    return !matched.length && (!global.navigator || key !== 'onerror');
-  });
-}
-
-/**
- * Check if argument is an instance of Error object or a duck-typed equivalent.
- *
- * @private
- * @param {Object} err - object to check
- * @param {string} err.message - error message
- * @returns {boolean}
- */
-function isError(err) {
-  return err instanceof Error || (err && typeof err.message === 'string');
-}
-
-/**
- *
- * Converts thrown non-extensible type into proper Error.
- *
- * @private
- * @param {*} thrown - Non-extensible type thrown by code
- * @return {Error}
- */
-function thrown2Error(err) {
-  return new Error(
-    'the ' + type(err) + ' ' + stringify(err) + ' was thrown, throw an Error :)'
-  );
-}
-
-Runner.constants = constants;
-
-/**
- * Node.js' `EventEmitter`
- * @external EventEmitter
- * @see {@link https://nodejs.org/api/events.html#events_class_eventemitter}
- */
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./errors":6,"./pending":16,"./runnable":33,"./suite":36,"./utils":38,"_process":67,"debug":45,"events":50,"util":89}],35:[function(require,module,exports){
-(function (global){
-'use strict';
-
-/**
- * Provides a factory function for a {@link StatsCollector} object.
- * @module
- */
-
-var constants = require('./runner').constants;
-var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
-var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
-var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
-var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
-var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
-var EVENT_RUN_END = constants.EVENT_RUN_END;
-var EVENT_TEST_END = constants.EVENT_TEST_END;
-
-/**
- * Test statistics collector.
- *
- * @public
- * @typedef {Object} StatsCollector
- * @property {number} suites - integer count of suites run.
- * @property {number} tests - integer count of tests run.
- * @property {number} passes - integer count of passing tests.
- * @property {number} pending - integer count of pending tests.
- * @property {number} failures - integer count of failed tests.
- * @property {Date} start - time when testing began.
- * @property {Date} end - time when testing concluded.
- * @property {number} duration - number of msecs that testing took.
- */
-
-var Date = global.Date;
-
-/**
- * Provides stats such as test duration, number of tests passed / failed etc., by listening for events emitted by `runner`.
- *
- * @private
- * @param {Runner} runner - Runner instance
- * @throws {TypeError} If falsy `runner`
- */
-function createStatsCollector(runner) {
-  /**
-   * @type StatsCollector
-   */
-  var stats = {
-    suites: 0,
-    tests: 0,
-    passes: 0,
-    pending: 0,
-    failures: 0
-  };
-
-  if (!runner) {
-    throw new TypeError('Missing runner argument');
-  }
-
-  runner.stats = stats;
-
-  runner.once(EVENT_RUN_BEGIN, function() {
-    stats.start = new Date();
-  });
-  runner.on(EVENT_SUITE_BEGIN, function(suite) {
-    suite.root || stats.suites++;
-  });
-  runner.on(EVENT_TEST_PASS, function() {
-    stats.passes++;
-  });
-  runner.on(EVENT_TEST_FAIL, function() {
-    stats.failures++;
-  });
-  runner.on(EVENT_TEST_PENDING, function() {
-    stats.pending++;
-  });
-  runner.on(EVENT_TEST_END, function() {
-    stats.tests++;
-  });
-  runner.once(EVENT_RUN_END, function() {
-    stats.end = new Date();
-    stats.duration = stats.end - stats.start;
-  });
-}
-
-module.exports = createStatsCollector;
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./runner":34}],36:[function(require,module,exports){
-'use strict';
-
-/**
- * Module dependencies.
- */
-var EventEmitter = require('events').EventEmitter;
-var Hook = require('./hook');
-var utils = require('./utils');
-var inherits = utils.inherits;
-var debug = require('debug')('mocha:suite');
-var milliseconds = require('ms');
-var errors = require('./errors');
-var createInvalidArgumentTypeError = errors.createInvalidArgumentTypeError;
-
-/**
- * Expose `Suite`.
- */
-
-exports = module.exports = Suite;
-
-/**
- * Create a new `Suite` with the given `title` and parent `Suite`.
- *
- * @public
- * @param {Suite} parent - Parent suite (required!)
- * @param {string} title - Title
- * @return {Suite}
- */
-Suite.create = function(parent, title) {
-  var suite = new Suite(title, parent.ctx);
-  suite.parent = parent;
-  title = suite.fullTitle();
-  parent.addSuite(suite);
-  return suite;
-};
-
-/**
- * Constructs a new `Suite` instance with the given `title`, `ctx`, and `isRoot`.
- *
- * @public
- * @class
- * @extends EventEmitter
- * @see {@link https://nodejs.org/api/events.html#events_class_eventemitter|EventEmitter}
- * @param {string} title - Suite title.
- * @param {Context} parentContext - Parent context instance.
- * @param {boolean} [isRoot=false] - Whether this is the root suite.
- */
-function Suite(title, parentContext, isRoot) {
-  if (!utils.isString(title)) {
-    throw createInvalidArgumentTypeError(
-      'Suite argument "title" must be a string. Received type "' +
-        typeof title +
-        '"',
-      'title',
-      'string'
-    );
-  }
-  this.title = title;
-  function Context() {}
-  Context.prototype = parentContext;
-  this.ctx = new Context();
-  this.suites = [];
-  this.tests = [];
-  this.root = isRoot === true;
-  this.pending = false;
-  this._retries = -1;
-  this._beforeEach = [];
-  this._beforeAll = [];
-  this._afterEach = [];
-  this._afterAll = [];
-  this._timeout = 2000;
-  this._slow = 75;
-  this._bail = false;
-  this._onlyTests = [];
-  this._onlySuites = [];
-  this.reset();
-
-  this.on('newListener', function(event) {
-    if (deprecatedEvents[event]) {
-      utils.deprecate(
-        'Event "' +
-          event +
-          '" is deprecated.  Please let the Mocha team know about your use case: https://git.io/v6Lwm'
-      );
-    }
-  });
-}
-
-/**
- * Inherit from `EventEmitter.prototype`.
- */
-inherits(Suite, EventEmitter);
-
-/**
- * Resets the state initially or for a next run.
- */
-Suite.prototype.reset = function() {
-  this.delayed = false;
-  function doReset(thingToReset) {
-    thingToReset.reset();
-  }
-  this.suites.forEach(doReset);
-  this.tests.forEach(doReset);
-  this._beforeEach.forEach(doReset);
-  this._afterEach.forEach(doReset);
-  this._beforeAll.forEach(doReset);
-  this._afterAll.forEach(doReset);
-};
-
-/**
- * Return a clone of this `Suite`.
- *
- * @private
- * @return {Suite}
- */
-Suite.prototype.clone = function() {
-  var suite = new Suite(this.title);
-  debug('clone');
-  suite.ctx = this.ctx;
-  suite.root = this.root;
-  suite.timeout(this.timeout());
-  suite.retries(this.retries());
-  suite.slow(this.slow());
-  suite.bail(this.bail());
-  return suite;
-};
-
-/**
- * Set or get timeout `ms` or short-hand such as "2s".
- *
- * @private
- * @todo Do not attempt to set value if `ms` is undefined
- * @param {number|string} ms
- * @return {Suite|number} for chaining
- */
-Suite.prototype.timeout = function(ms) {
-  if (!arguments.length) {
-    return this._timeout;
-  }
-  if (typeof ms === 'string') {
-    ms = milliseconds(ms);
-  }
-
-  // Clamp to range
-  var INT_MAX = Math.pow(2, 31) - 1;
-  var range = [0, INT_MAX];
-  ms = utils.clamp(ms, range);
-
-  debug('timeout %d', ms);
-  this._timeout = parseInt(ms, 10);
-  return this;
-};
-
-/**
- * Set or get number of times to retry a failed test.
- *
- * @private
- * @param {number|string} n
- * @return {Suite|number} for chaining
- */
-Suite.prototype.retries = function(n) {
-  if (!arguments.length) {
-    return this._retries;
-  }
-  debug('retries %d', n);
-  this._retries = parseInt(n, 10) || 0;
-  return this;
-};
-
-/**
- * Set or get slow `ms` or short-hand such as "2s".
- *
- * @private
- * @param {number|string} ms
- * @return {Suite|number} for chaining
- */
-Suite.prototype.slow = function(ms) {
-  if (!arguments.length) {
-    return this._slow;
-  }
-  if (typeof ms === 'string') {
-    ms = milliseconds(ms);
-  }
-  debug('slow %d', ms);
-  this._slow = ms;
-  return this;
-};
-
-/**
- * Set or get whether to bail after first error.
- *
- * @private
- * @param {boolean} bail
- * @return {Suite|number} for chaining
- */
-Suite.prototype.bail = function(bail) {
-  if (!arguments.length) {
-    return this._bail;
-  }
-  debug('bail %s', bail);
-  this._bail = bail;
-  return this;
-};
-
-/**
- * Check if this suite or its parent suite is marked as pending.
- *
- * @private
- */
-Suite.prototype.isPending = function() {
-  return this.pending || (this.parent && this.parent.isPending());
-};
-
-/**
- * Generic hook-creator.
- * @private
- * @param {string} title - Title of hook
- * @param {Function} fn - Hook callback
- * @returns {Hook} A new hook
- */
-Suite.prototype._createHook = function(title, fn) {
-  var hook = new Hook(title, fn);
-  hook.parent = this;
-  hook.timeout(this.timeout());
-  hook.retries(this.retries());
-  hook.slow(this.slow());
-  hook.ctx = this.ctx;
-  hook.file = this.file;
-  return hook;
-};
-
-/**
- * Run `fn(test[, done])` before running tests.
- *
- * @private
- * @param {string} title
- * @param {Function} fn
- * @return {Suite} for chaining
- */
-Suite.prototype.beforeAll = function(title, fn) {
-  if (this.isPending()) {
-    return this;
-  }
-  if (typeof title === 'function') {
-    fn = title;
-    title = fn.name;
-  }
-  title = '"before all" hook' + (title ? ': ' + title : '');
-
-  var hook = this._createHook(title, fn);
-  this._beforeAll.push(hook);
-  this.emit(constants.EVENT_SUITE_ADD_HOOK_BEFORE_ALL, hook);
-  return this;
-};
-
-/**
- * Run `fn(test[, done])` after running tests.
- *
- * @private
- * @param {string} title
- * @param {Function} fn
- * @return {Suite} for chaining
- */
-Suite.prototype.afterAll = function(title, fn) {
-  if (this.isPending()) {
-    return this;
-  }
-  if (typeof title === 'function') {
-    fn = title;
-    title = fn.name;
-  }
-  title = '"after all" hook' + (title ? ': ' + title : '');
-
-  var hook = this._createHook(title, fn);
-  this._afterAll.push(hook);
-  this.emit(constants.EVENT_SUITE_ADD_HOOK_AFTER_ALL, hook);
-  return this;
-};
-
-/**
- * Run `fn(test[, done])` before each test case.
- *
- * @private
- * @param {string} title
- * @param {Function} fn
- * @return {Suite} for chaining
- */
-Suite.prototype.beforeEach = function(title, fn) {
-  if (this.isPending()) {
-    return this;
-  }
-  if (typeof title === 'function') {
-    fn = title;
-    title = fn.name;
-  }
-  title = '"before each" hook' + (title ? ': ' + title : '');
-
-  var hook = this._createHook(title, fn);
-  this._beforeEach.push(hook);
-  this.emit(constants.EVENT_SUITE_ADD_HOOK_BEFORE_EACH, hook);
-  return this;
-};
-
-/**
- * Run `fn(test[, done])` after each test case.
- *
- * @private
- * @param {string} title
- * @param {Function} fn
- * @return {Suite} for chaining
- */
-Suite.prototype.afterEach = function(title, fn) {
-  if (this.isPending()) {
-    return this;
-  }
-  if (typeof title === 'function') {
-    fn = title;
-    title = fn.name;
-  }
-  title = '"after each" hook' + (title ? ': ' + title : '');
-
-  var hook = this._createHook(title, fn);
-  this._afterEach.push(hook);
-  this.emit(constants.EVENT_SUITE_ADD_HOOK_AFTER_EACH, hook);
-  return this;
-};
-
-/**
- * Add a test `suite`.
- *
- * @private
- * @param {Suite} suite
- * @return {Suite} for chaining
- */
-Suite.prototype.addSuite = function(suite) {
-  suite.parent = this;
-  suite.root = false;
-  suite.timeout(this.timeout());
-  suite.retries(this.retries());
-  suite.slow(this.slow());
-  suite.bail(this.bail());
-  this.suites.push(suite);
-  this.emit(constants.EVENT_SUITE_ADD_SUITE, suite);
-  return this;
-};
-
-/**
- * Add a `test` to this suite.
- *
- * @private
- * @param {Test} test
- * @return {Suite} for chaining
- */
-Suite.prototype.addTest = function(test) {
-  test.parent = this;
-  test.timeout(this.timeout());
-  test.retries(this.retries());
-  test.slow(this.slow());
-  test.ctx = this.ctx;
-  this.tests.push(test);
-  this.emit(constants.EVENT_SUITE_ADD_TEST, test);
-  return this;
-};
-
-/**
- * Return the full title generated by recursively concatenating the parent's
- * full title.
- *
- * @memberof Suite
- * @public
- * @return {string}
- */
-Suite.prototype.fullTitle = function() {
-  return this.titlePath().join(' ');
-};
-
-/**
- * Return the title path generated by recursively concatenating the parent's
- * title path.
- *
- * @memberof Suite
- * @public
- * @return {string}
- */
-Suite.prototype.titlePath = function() {
-  var result = [];
-  if (this.parent) {
-    result = result.concat(this.parent.titlePath());
-  }
-  if (!this.root) {
-    result.push(this.title);
-  }
-  return result;
-};
-
-/**
- * Return the total number of tests.
- *
- * @memberof Suite
- * @public
- * @return {number}
- */
-Suite.prototype.total = function() {
-  return (
-    this.suites.reduce(function(sum, suite) {
-      return sum + suite.total();
-    }, 0) + this.tests.length
-  );
-};
-
-/**
- * Iterates through each suite recursively to find all tests. Applies a
- * function in the format `fn(test)`.
- *
- * @private
- * @param {Function} fn
- * @return {Suite}
- */
-Suite.prototype.eachTest = function(fn) {
-  this.tests.forEach(fn);
-  this.suites.forEach(function(suite) {
-    suite.eachTest(fn);
-  });
-  return this;
-};
-
-/**
- * This will run the root suite if we happen to be running in delayed mode.
- * @private
- */
-Suite.prototype.run = function run() {
-  if (this.root) {
-    this.emit(constants.EVENT_ROOT_SUITE_RUN);
-  }
-};
-
-/**
- * Determines whether a suite has an `only` test or suite as a descendant.
- *
- * @private
- * @returns {Boolean}
- */
-Suite.prototype.hasOnly = function hasOnly() {
-  return (
-    this._onlyTests.length > 0 ||
-    this._onlySuites.length > 0 ||
-    this.suites.some(function(suite) {
-      return suite.hasOnly();
-    })
-  );
-};
-
-/**
- * Filter suites based on `isOnly` logic.
- *
- * @private
- * @returns {Boolean}
- */
-Suite.prototype.filterOnly = function filterOnly() {
-  if (this._onlyTests.length) {
-    // If the suite contains `only` tests, run those and ignore any nested suites.
-    this.tests = this._onlyTests;
-    this.suites = [];
-  } else {
-    // Otherwise, do not run any of the tests in this suite.
-    this.tests = [];
-    this._onlySuites.forEach(function(onlySuite) {
-      // If there are other `only` tests/suites nested in the current `only` suite, then filter that `only` suite.
-      // Otherwise, all of the tests on this `only` suite should be run, so don't filter it.
-      if (onlySuite.hasOnly()) {
-        onlySuite.filterOnly();
-      }
-    });
-    // Run the `only` suites, as well as any other suites that have `only` tests/suites as descendants.
-    var onlySuites = this._onlySuites;
-    this.suites = this.suites.filter(function(childSuite) {
-      return onlySuites.indexOf(childSuite) !== -1 || childSuite.filterOnly();
-    });
-  }
-  // Keep the suite only if there is something to run
-  return this.tests.length > 0 || this.suites.length > 0;
-};
-
-/**
- * Adds a suite to the list of subsuites marked `only`.
- *
- * @private
- * @param {Suite} suite
- */
-Suite.prototype.appendOnlySuite = function(suite) {
-  this._onlySuites.push(suite);
-};
-
-/**
- * Marks a suite to be `only`.
- *
- * @private
- */
-Suite.prototype.markOnly = function() {
-  this.parent && this.parent.appendOnlySuite(this);
-};
-
-/**
- * Adds a test to the list of tests marked `only`.
- *
- * @private
- * @param {Test} test
- */
-Suite.prototype.appendOnlyTest = function(test) {
-  this._onlyTests.push(test);
-};
-
-/**
- * Returns the array of hooks by hook name; see `HOOK_TYPE_*` constants.
- * @private
- */
-Suite.prototype.getHooks = function getHooks(name) {
-  return this['_' + name];
-};
-
-/**
- * cleans all references from this suite and all child suites.
- */
-Suite.prototype.dispose = function() {
-  this.suites.forEach(function(suite) {
-    suite.dispose();
-  });
-  this.cleanReferences();
-};
-
-/**
- * Cleans up the references to all the deferred functions
- * (before/after/beforeEach/afterEach) and tests of a Suite.
- * These must be deleted otherwise a memory leak can happen,
- * as those functions may reference variables from closures,
- * thus those variables can never be garbage collected as long
- * as the deferred functions exist.
- *
- * @private
- */
-Suite.prototype.cleanReferences = function cleanReferences() {
-  function cleanArrReferences(arr) {
-    for (var i = 0; i < arr.length; i++) {
-      delete arr[i].fn;
-    }
-  }
-
-  if (Array.isArray(this._beforeAll)) {
-    cleanArrReferences(this._beforeAll);
-  }
-
-  if (Array.isArray(this._beforeEach)) {
-    cleanArrReferences(this._beforeEach);
-  }
-
-  if (Array.isArray(this._afterAll)) {
-    cleanArrReferences(this._afterAll);
-  }
-
-  if (Array.isArray(this._afterEach)) {
-    cleanArrReferences(this._afterEach);
-  }
-
-  for (var i = 0; i < this.tests.length; i++) {
-    delete this.tests[i].fn;
-  }
-};
-
-/**
- * Returns an object suitable for IPC.
- * Functions are represented by keys beginning with `$$`.
- * @private
- * @returns {Object}
- */
-Suite.prototype.serialize = function serialize() {
-  return {
-    _bail: this._bail,
-    $$fullTitle: this.fullTitle(),
-    $$isPending: this.isPending(),
-    root: this.root,
-    title: this.title
-  };
-};
-
-var constants = utils.defineConstants(
-  /**
-   * {@link Suite}-related constants.
-   * @public
-   * @memberof Suite
-   * @alias constants
-   * @readonly
-   * @static
-   * @enum {string}
-   */
-  {
-    /**
-     * Event emitted after a test file has been loaded Not emitted in browser.
-     */
-    EVENT_FILE_POST_REQUIRE: 'post-require',
-    /**
-     * Event emitted before a test file has been loaded. In browser, this is emitted once an interface has been selected.
-     */
-    EVENT_FILE_PRE_REQUIRE: 'pre-require',
-    /**
-     * Event emitted immediately after a test file has been loaded. Not emitted in browser.
-     */
-    EVENT_FILE_REQUIRE: 'require',
-    /**
-     * Event emitted when `global.run()` is called (use with `delay` option)
-     */
-    EVENT_ROOT_SUITE_RUN: 'run',
-
-    /**
-     * Namespace for collection of a `Suite`'s "after all" hooks
-     */
-    HOOK_TYPE_AFTER_ALL: 'afterAll',
-    /**
-     * Namespace for collection of a `Suite`'s "after each" hooks
-     */
-    HOOK_TYPE_AFTER_EACH: 'afterEach',
-    /**
-     * Namespace for collection of a `Suite`'s "before all" hooks
-     */
-    HOOK_TYPE_BEFORE_ALL: 'beforeAll',
-    /**
-     * Namespace for collection of a `Suite`'s "before all" hooks
-     */
-    HOOK_TYPE_BEFORE_EACH: 'beforeEach',
-
-    // the following events are all deprecated
-
-    /**
-     * Emitted after an "after all" `Hook` has been added to a `Suite`. Deprecated
-     */
-    EVENT_SUITE_ADD_HOOK_AFTER_ALL: 'afterAll',
-    /**
-     * Emitted after an "after each" `Hook` has been added to a `Suite` Deprecated
-     */
-    EVENT_SUITE_ADD_HOOK_AFTER_EACH: 'afterEach',
-    /**
-     * Emitted after an "before all" `Hook` has been added to a `Suite` Deprecated
-     */
-    EVENT_SUITE_ADD_HOOK_BEFORE_ALL: 'beforeAll',
-    /**
-     * Emitted after an "before each" `Hook` has been added to a `Suite` Deprecated
-     */
-    EVENT_SUITE_ADD_HOOK_BEFORE_EACH: 'beforeEach',
-    /**
-     * Emitted after a child `Suite` has been added to a `Suite`. Deprecated
-     */
-    EVENT_SUITE_ADD_SUITE: 'suite',
-    /**
-     * Emitted after a `Test` has been added to a `Suite`. Deprecated
-     */
-    EVENT_SUITE_ADD_TEST: 'test'
-  }
-);
-
-/**
- * @summary There are no known use cases for these events.
- * @desc This is a `Set`-like object having all keys being the constant's string value and the value being `true`.
- * @todo Remove eventually
- * @type {Object<string,boolean>}
- * @ignore
- */
-var deprecatedEvents = Object.keys(constants)
-  .filter(function(constant) {
-    return constant.substring(0, 15) === 'EVENT_SUITE_ADD';
-  })
-  .reduce(function(acc, constant) {
-    acc[constants[constant]] = true;
-    return acc;
-  }, utils.createMap());
-
-Suite.constants = constants;
-
-},{"./errors":6,"./hook":7,"./utils":38,"debug":45,"events":50,"ms":58}],37:[function(require,module,exports){
-'use strict';
-var Runnable = require('./runnable');
-var utils = require('./utils');
-var errors = require('./errors');
-var createInvalidArgumentTypeError = errors.createInvalidArgumentTypeError;
-var isString = utils.isString;
-
-module.exports = Test;
-
-/**
- * Initialize a new `Test` with the given `title` and callback `fn`.
- *
- * @public
- * @class
- * @extends Runnable
- * @param {String} title - Test title (required)
- * @param {Function} [fn] - Test callback.  If omitted, the Test is considered "pending"
- */
-function Test(title, fn) {
-  if (!isString(title)) {
-    throw createInvalidArgumentTypeError(
-      'Test argument "title" should be a string. Received type "' +
-        typeof title +
-        '"',
-      'title',
-      'string'
-    );
-  }
-  this.type = 'test';
-  Runnable.call(this, title, fn);
-  this.reset();
-}
-
-/**
- * Inherit from `Runnable.prototype`.
- */
-utils.inherits(Test, Runnable);
-
-/**
- * Resets the state initially or for a next run.
- */
-Test.prototype.reset = function() {
-  Runnable.prototype.reset.call(this);
-  this.pending = !this.fn;
-  delete this.state;
-};
-
-/**
- * Set or get retried test
- *
- * @private
- */
-Test.prototype.retriedTest = function(n) {
-  if (!arguments.length) {
-    return this._retriedTest;
-  }
-  this._retriedTest = n;
-};
-
-/**
- * Add test to the list of tests marked `only`.
- *
- * @private
- */
-Test.prototype.markOnly = function() {
-  this.parent.appendOnlyTest(this);
-};
-
-Test.prototype.clone = function() {
-  var test = new Test(this.title, this.fn);
-  test.timeout(this.timeout());
-  test.slow(this.slow());
-  test.retries(this.retries());
-  test.currentRetry(this.currentRetry());
-  test.retriedTest(this.retriedTest() || this);
-  test.globals(this.globals());
-  test.parent = this.parent;
-  test.file = this.file;
-  test.ctx = this.ctx;
-  return test;
-};
-
-/**
- * Returns an minimal object suitable for transmission over IPC.
- * Functions are represented by keys beginning with `$$`.
- * @private
- * @returns {Object}
- */
-Test.prototype.serialize = function serialize() {
-  return {
-    $$currentRetry: this._currentRetry,
-    $$fullTitle: this.fullTitle(),
-    $$isPending: this.pending,
-    $$retriedTest: this._retriedTest || null,
-    $$slow: this._slow,
-    $$titlePath: this.titlePath(),
-    body: this.body,
-    duration: this.duration,
-    err: this.err,
-    parent: {
-      $$fullTitle: this.parent.fullTitle()
-    },
-    speed: this.speed,
-    state: this.state,
-    title: this.title,
-    type: this.type,
-    file: this.file
-  };
-};
-
-},{"./errors":6,"./runnable":33,"./utils":38}],38:[function(require,module,exports){
-(function (process,Buffer){
-'use strict';
-
-/**
- * Various utility functions used throughout Mocha's codebase.
- * @module utils
- */
-
-/**
- * Module dependencies.
- */
-
-var fs = require('fs');
-var path = require('path');
-var util = require('util');
-var glob = require('glob');
-var he = require('he');
-var errors = require('./errors');
-var createNoFilesMatchPatternError = errors.createNoFilesMatchPatternError;
-var createMissingArgumentError = errors.createMissingArgumentError;
-
-var assign = (exports.assign = require('object.assign').getPolyfill());
-
-/**
- * Inherit the prototype methods from one constructor into another.
- *
- * @param {function} ctor - Constructor function which needs to inherit the
- *     prototype.
- * @param {function} superCtor - Constructor function to inherit prototype from.
- * @throws {TypeError} if either constructor is null, or if super constructor
- *     lacks a prototype.
- */
-exports.inherits = util.inherits;
-
-/**
- * Escape special characters in the given string of html.
- *
- * @private
- * @param  {string} html
- * @return {string}
- */
-exports.escape = function(html) {
-  return he.encode(String(html), {useNamedReferences: false});
-};
-
-/**
- * Test if the given obj is type of string.
- *
- * @private
- * @param {Object} obj
- * @return {boolean}
- */
-exports.isString = function(obj) {
-  return typeof obj === 'string';
-};
-
-/**
- * Compute a slug from the given `str`.
- *
- * @private
- * @param {string} str
- * @return {string}
- */
-exports.slug = function(str) {
-  return str
-    .toLowerCase()
-    .replace(/\s+/g, '-')
-    .replace(/[^-\w]/g, '')
-    .replace(/-{2,}/g, '-');
-};
-
-/**
- * Strip the function definition from `str`, and re-indent for pre whitespace.
- *
- * @param {string} str
- * @return {string}
- */
-exports.clean = function(str) {
-  str = str
-    .replace(/\r\n?|[\n\u2028\u2029]/g, '\n')
-    .replace(/^\uFEFF/, '')
-    // (traditional)->  space/name     parameters    body     (lambda)-> parameters       body   multi-statement/single          keep body content
-    .replace(
-      /^function(?:\s*|\s+[^(]*)\([^)]*\)\s*\{((?:.|\n)*?)\s*\}$|^\([^)]*\)\s*=>\s*(?:\{((?:.|\n)*?)\s*\}|((?:.|\n)*))$/,
-      '$1$2$3'
-    );
-
-  var spaces = str.match(/^\n?( *)/)[1].length;
-  var tabs = str.match(/^\n?(\t*)/)[1].length;
-  var re = new RegExp(
-    '^\n?' + (tabs ? '\t' : ' ') + '{' + (tabs || spaces) + '}',
-    'gm'
-  );
-
-  str = str.replace(re, '');
-
-  return str.trim();
-};
-
-/**
- * Parse the given `qs`.
- *
- * @private
- * @param {string} qs
- * @return {Object}
- */
-exports.parseQuery = function(qs) {
-  return qs
-    .replace('?', '')
-    .split('&')
-    .reduce(function(obj, pair) {
-      var i = pair.indexOf('=');
-      var key = pair.slice(0, i);
-      var val = pair.slice(++i);
-
-      // Due to how the URLSearchParams API treats spaces
-      obj[key] = decodeURIComponent(val.replace(/\+/g, '%20'));
-
-      return obj;
-    }, {});
-};
-
-/**
- * Highlight the given string of `js`.
- *
- * @private
- * @param {string} js
- * @return {string}
- */
-function highlight(js) {
-  return js
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/\/\/(.*)/gm, '<span class="comment">//$1</span>')
-    .replace(/('.*?')/gm, '<span class="string">$1</span>')
-    .replace(/(\d+\.\d+)/gm, '<span class="number">$1</span>')
-    .replace(/(\d+)/gm, '<span class="number">$1</span>')
-    .replace(
-      /\bnew[ \t]+(\w+)/gm,
-      '<span class="keyword">new</span> <span class="init">$1</span>'
-    )
-    .replace(
-      /\b(function|new|throw|return|var|if|else)\b/gm,
-      '<span class="keyword">$1</span>'
-    );
-}
-
-/**
- * Highlight the contents of tag `name`.
- *
- * @private
- * @param {string} name
- */
-exports.highlightTags = function(name) {
-  var code = document.getElementById('mocha').getElementsByTagName(name);
-  for (var i = 0, len = code.length; i < len; ++i) {
-    code[i].innerHTML = highlight(code[i].innerHTML);
-  }
-};
-
-/**
- * If a value could have properties, and has none, this function is called,
- * which returns a string representation of the empty value.
- *
- * Functions w/ no properties return `'[Function]'`
- * Arrays w/ length === 0 return `'[]'`
- * Objects w/ no properties return `'{}'`
- * All else: return result of `value.toString()`
- *
- * @private
- * @param {*} value The value to inspect.
- * @param {string} typeHint The type of the value
- * @returns {string}
- */
-function emptyRepresentation(value, typeHint) {
-  switch (typeHint) {
-    case 'function':
-      return '[Function]';
-    case 'object':
-      return '{}';
-    case 'array':
-      return '[]';
-    default:
-      return value.toString();
-  }
-}
-
-/**
- * Takes some variable and asks `Object.prototype.toString()` what it thinks it
- * is.
- *
- * @private
- * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
- * @param {*} value The value to test.
- * @returns {string} Computed type
- * @example
- * type({}) // 'object'
- * type([]) // 'array'
- * type(1) // 'number'
- * type(false) // 'boolean'
- * type(Infinity) // 'number'
- * type(null) // 'null'
- * type(new Date()) // 'date'
- * type(/foo/) // 'regexp'
- * type('type') // 'string'
- * type(global) // 'global'
- * type(new String('foo') // 'object'
- */
-var type = (exports.type = function type(value) {
-  if (value === undefined) {
-    return 'undefined';
-  } else if (value === null) {
-    return 'null';
-  } else if (Buffer.isBuffer(value)) {
-    return 'buffer';
-  }
-  return Object.prototype.toString
-    .call(value)
-    .replace(/^\[.+\s(.+?)]$/, '$1')
-    .toLowerCase();
-});
-
-/**
- * Stringify `value`. Different behavior depending on type of value:
- *
- * - If `value` is undefined or null, return `'[undefined]'` or `'[null]'`, respectively.
- * - If `value` is not an object, function or array, return result of `value.toString()` wrapped in double-quotes.
- * - If `value` is an *empty* object, function, or array, return result of function
- *   {@link emptyRepresentation}.
- * - If `value` has properties, call {@link exports.canonicalize} on it, then return result of
- *   JSON.stringify().
- *
- * @private
- * @see exports.type
- * @param {*} value
- * @return {string}
- */
-exports.stringify = function(value) {
-  var typeHint = type(value);
-
-  if (!~['object', 'array', 'function'].indexOf(typeHint)) {
-    if (typeHint === 'buffer') {
-      var json = Buffer.prototype.toJSON.call(value);
-      // Based on the toJSON result
-      return jsonStringify(
-        json.data && json.type ? json.data : json,
-        2
-      ).replace(/,(\n|$)/g, '$1');
-    }
-
-    // IE7/IE8 has a bizarre String constructor; needs to be coerced
-    // into an array and back to obj.
-    if (typeHint === 'string' && typeof value === 'object') {
-      value = value.split('').reduce(function(acc, char, idx) {
-        acc[idx] = char;
-        return acc;
-      }, {});
-      typeHint = 'object';
-    } else {
-      return jsonStringify(value);
-    }
-  }
-
-  for (var prop in value) {
-    if (Object.prototype.hasOwnProperty.call(value, prop)) {
-      return jsonStringify(
-        exports.canonicalize(value, null, typeHint),
-        2
-      ).replace(/,(\n|$)/g, '$1');
-    }
-  }
-
-  return emptyRepresentation(value, typeHint);
-};
-
-/**
- * like JSON.stringify but more sense.
- *
- * @private
- * @param {Object}  object
- * @param {number=} spaces
- * @param {number=} depth
- * @returns {*}
- */
-function jsonStringify(object, spaces, depth) {
-  if (typeof spaces === 'undefined') {
-    // primitive types
-    return _stringify(object);
-  }
-
-  depth = depth || 1;
-  var space = spaces * depth;
-  var str = Array.isArray(object) ? '[' : '{';
-  var end = Array.isArray(object) ? ']' : '}';
-  var length =
-    typeof object.length === 'number'
-      ? object.length
-      : Object.keys(object).length;
-  // `.repeat()` polyfill
-  function repeat(s, n) {
-    return new Array(n).join(s);
-  }
-
-  function _stringify(val) {
-    switch (type(val)) {
-      case 'null':
-      case 'undefined':
-        val = '[' + val + ']';
-        break;
-      case 'array':
-      case 'object':
-        val = jsonStringify(val, spaces, depth + 1);
-        break;
-      case 'boolean':
-      case 'regexp':
-      case 'symbol':
-      case 'number':
-        val =
-          val === 0 && 1 / val === -Infinity // `-0`
-            ? '-0'
-            : val.toString();
-        break;
-      case 'date':
-        var sDate = isNaN(val.getTime()) ? val.toString() : val.toISOString();
-        val = '[Date: ' + sDate + ']';
-        break;
-      case 'buffer':
-        var json = val.toJSON();
-        // Based on the toJSON result
-        json = json.data && json.type ? json.data : json;
-        val = '[Buffer: ' + jsonStringify(json, 2, depth + 1) + ']';
-        break;
-      default:
-        val =
-          val === '[Function]' || val === '[Circular]'
-            ? val
-            : JSON.stringify(val); // string
-    }
-    return val;
-  }
-
-  for (var i in object) {
-    if (!Object.prototype.hasOwnProperty.call(object, i)) {
-      continue; // not my business
-    }
-    --length;
-    str +=
-      '\n ' +
-      repeat(' ', space) +
-      (Array.isArray(object) ? '' : '"' + i + '": ') + // key
-      _stringify(object[i]) + // value
-      (length ? ',' : ''); // comma
-  }
-
-  return (
-    str +
-    // [], {}
-    (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end)
-  );
-}
-
-/**
- * Return a new Thing that has the keys in sorted order. Recursive.
- *
- * If the Thing...
- * - has already been seen, return string `'[Circular]'`
- * - is `undefined`, return string `'[undefined]'`
- * - is `null`, return value `null`
- * - is some other primitive, return the value
- * - is not a primitive or an `Array`, `Object`, or `Function`, return the value of the Thing's `toString()` method
- * - is a non-empty `Array`, `Object`, or `Function`, return the result of calling this function again.
- * - is an empty `Array`, `Object`, or `Function`, return the result of calling `emptyRepresentation()`
- *
- * @private
- * @see {@link exports.stringify}
- * @param {*} value Thing to inspect.  May or may not have properties.
- * @param {Array} [stack=[]] Stack of seen values
- * @param {string} [typeHint] Type hint
- * @return {(Object|Array|Function|string|undefined)}
- */
-exports.canonicalize = function canonicalize(value, stack, typeHint) {
-  var canonicalizedObj;
-  /* eslint-disable no-unused-vars */
-  var prop;
-  /* eslint-enable no-unused-vars */
-  typeHint = typeHint || type(value);
-  function withStack(value, fn) {
-    stack.push(value);
-    fn();
-    stack.pop();
-  }
-
-  stack = stack || [];
-
-  if (stack.indexOf(value) !== -1) {
-    return '[Circular]';
-  }
-
-  switch (typeHint) {
-    case 'undefined':
-    case 'buffer':
-    case 'null':
-      canonicalizedObj = value;
-      break;
-    case 'array':
-      withStack(value, function() {
-        canonicalizedObj = value.map(function(item) {
-          return exports.canonicalize(item, stack);
-        });
-      });
-      break;
-    case 'function':
-      /* eslint-disable guard-for-in */
-      for (prop in value) {
-        canonicalizedObj = {};
-        break;
-      }
-      /* eslint-enable guard-for-in */
-      if (!canonicalizedObj) {
-        canonicalizedObj = emptyRepresentation(value, typeHint);
-        break;
-      }
-    /* falls through */
-    case 'object':
-      canonicalizedObj = canonicalizedObj || {};
-      withStack(value, function() {
-        Object.keys(value)
-          .sort()
-          .forEach(function(key) {
-            canonicalizedObj[key] = exports.canonicalize(value[key], stack);
-          });
-      });
-      break;
-    case 'date':
-    case 'number':
-    case 'regexp':
-    case 'boolean':
-    case 'symbol':
-      canonicalizedObj = value;
-      break;
-    default:
-      canonicalizedObj = value + '';
-  }
-
-  return canonicalizedObj;
-};
-
-/**
- * Determines if pathname has a matching file extension.
- *
- * @private
- * @param {string} pathname - Pathname to check for match.
- * @param {string[]} exts - List of file extensions (sans period).
- * @return {boolean} whether file extension matches.
- * @example
- * hasMatchingExtname('foo.html', ['js', 'css']); // => false
- */
-function hasMatchingExtname(pathname, exts) {
-  var suffix = path.extname(pathname).slice(1);
-  return exts.some(function(element) {
-    return suffix === element;
-  });
-}
-
-/**
- * Determines if pathname would be a "hidden" file (or directory) on UN*X.
- *
- * @description
- * On UN*X, pathnames beginning with a full stop (aka dot) are hidden during
- * typical usage. Dotfiles, plain-text configuration files, are prime examples.
- *
- * @see {@link http://xahlee.info/UnixResource_dir/writ/unix_origin_of_dot_filename.html|Origin of Dot File Names}
- *
- * @private
- * @param {string} pathname - Pathname to check for match.
- * @return {boolean} whether pathname would be considered a hidden file.
- * @example
- * isHiddenOnUnix('.profile'); // => true
- */
-function isHiddenOnUnix(pathname) {
-  return path.basename(pathname)[0] === '.';
-}
-
-/**
- * Lookup file names at the given `path`.
- *
- * @description
- * Filenames are returned in _traversal_ order by the OS/filesystem.
- * **Make no assumption that the names will be sorted in any fashion.**
- *
- * @public
- * @param {string} filepath - Base path to start searching from.
- * @param {string[]} [extensions=[]] - File extensions to look for.
- * @param {boolean} [recursive=false] - Whether to recurse into subdirectories.
- * @return {string[]} An array of paths.
- * @throws {Error} if no files match pattern.
- * @throws {TypeError} if `filepath` is directory and `extensions` not provided.
- */
-exports.lookupFiles = function lookupFiles(filepath, extensions, recursive) {
-  extensions = extensions || [];
-  recursive = recursive || false;
-  var files = [];
-  var stat;
-
-  if (!fs.existsSync(filepath)) {
-    var pattern;
-    if (glob.hasMagic(filepath)) {
-      // Handle glob as is without extensions
-      pattern = filepath;
-    } else {
-      // glob pattern e.g. 'filepath+(.js|.ts)'
-      var strExtensions = extensions
-        .map(function(v) {
-          return '.' + v;
-        })
-        .join('|');
-      pattern = filepath + '+(' + strExtensions + ')';
-    }
-    files = glob.sync(pattern, {nodir: true});
-    if (!files.length) {
-      throw createNoFilesMatchPatternError(
-        'Cannot find any files matching pattern ' + exports.dQuote(filepath),
-        filepath
-      );
-    }
-    return files;
-  }
-
-  // Handle file
-  try {
-    stat = fs.statSync(filepath);
-    if (stat.isFile()) {
-      return filepath;
-    }
-  } catch (err) {
-    // ignore error
-    return;
-  }
-
-  // Handle directory
-  fs.readdirSync(filepath).forEach(function(dirent) {
-    var pathname = path.join(filepath, dirent);
-    var stat;
-
-    try {
-      stat = fs.statSync(pathname);
-      if (stat.isDirectory()) {
-        if (recursive) {
-          files = files.concat(lookupFiles(pathname, extensions, recursive));
-        }
-        return;
-      }
-    } catch (err) {
-      // ignore error
-      return;
-    }
-    if (!extensions.length) {
-      throw createMissingArgumentError(
-        util.format(
-          'Argument %s required when argument %s is a directory',
-          exports.sQuote('extensions'),
-          exports.sQuote('filepath')
-        ),
-        'extensions',
-        'array'
-      );
-    }
-
-    if (
-      !stat.isFile() ||
-      !hasMatchingExtname(pathname, extensions) ||
-      isHiddenOnUnix(pathname)
-    ) {
-      return;
-    }
-    files.push(pathname);
-  });
-
-  return files;
-};
-
-/**
- * process.emitWarning or a polyfill
- * @see https://nodejs.org/api/process.html#process_process_emitwarning_warning_options
- * @ignore
- */
-function emitWarning(msg, type) {
-  if (process.emitWarning) {
-    process.emitWarning(msg, type);
-  } else {
-    process.nextTick(function() {
-      console.warn(type + ': ' + msg);
-    });
-  }
-}
-
-/**
- * Show a deprecation warning. Each distinct message is only displayed once.
- * Ignores empty messages.
- *
- * @param {string} [msg] - Warning to print
- * @private
- */
-exports.deprecate = function deprecate(msg) {
-  msg = String(msg);
-  if (msg && !deprecate.cache[msg]) {
-    deprecate.cache[msg] = true;
-    emitWarning(msg, 'DeprecationWarning');
-  }
-};
-exports.deprecate.cache = {};
-
-/**
- * Show a generic warning.
- * Ignores empty messages.
- *
- * @param {string} [msg] - Warning to print
- * @private
- */
-exports.warn = function warn(msg) {
-  if (msg) {
-    emitWarning(msg);
-  }
-};
-
-/**
- * @summary
- * This Filter based on `mocha-clean` module.(see: `github.com/rstacruz/mocha-clean`)
- * @description
- * When invoking this function you get a filter function that get the Error.stack as an input,
- * and return a prettify output.
- * (i.e: strip Mocha and internal node functions from stack trace).
- * @returns {Function}
- */
-exports.stackTraceFilter = function() {
-  // TODO: Replace with `process.browser`
-  var is = typeof document === 'undefined' ? {node: true} : {browser: true};
-  var slash = path.sep;
-  var cwd;
-  if (is.node) {
-    cwd = exports.cwd() + slash;
-  } else {
-    cwd = (typeof location === 'undefined'
-      ? window.location
-      : location
-    ).href.replace(/\/[^/]*$/, '/');
-    slash = '/';
-  }
-
-  function isMochaInternal(line) {
-    return (
-      ~line.indexOf('node_modules' + slash + 'mocha' + slash) ||
-      ~line.indexOf(slash + 'mocha.js') ||
-      ~line.indexOf(slash + 'mocha.min.js')
-    );
-  }
-
-  function isNodeInternal(line) {
-    return (
-      ~line.indexOf('(timers.js:') ||
-      ~line.indexOf('(events.js:') ||
-      ~line.indexOf('(node.js:') ||
-      ~line.indexOf('(module.js:') ||
-      ~line.indexOf('GeneratorFunctionPrototype.next (native)') ||
-      false
-    );
-  }
-
-  return function(stack) {
-    stack = stack.split('\n');
-
-    stack = stack.reduce(function(list, line) {
-      if (isMochaInternal(line)) {
-        return list;
-      }
-
-      if (is.node && isNodeInternal(line)) {
-        return list;
-      }
-
-      // Clean up cwd(absolute)
-      if (/:\d+:\d+\)?$/.test(line)) {
-        line = line.replace('(' + cwd, '(');
-      }
-
-      list.push(line);
-      return list;
-    }, []);
-
-    return stack.join('\n');
-  };
-};
-
-/**
- * Crude, but effective.
- * @public
- * @param {*} value
- * @returns {boolean} Whether or not `value` is a Promise
- */
-exports.isPromise = function isPromise(value) {
-  return (
-    typeof value === 'object' &&
-    value !== null &&
-    typeof value.then === 'function'
-  );
-};
-
-/**
- * Clamps a numeric value to an inclusive range.
- *
- * @param {number} value - Value to be clamped.
- * @param {numer[]} range - Two element array specifying [min, max] range.
- * @returns {number} clamped value
- */
-exports.clamp = function clamp(value, range) {
-  return Math.min(Math.max(value, range[0]), range[1]);
-};
-
-/**
- * Single quote text by combining with undirectional ASCII quotation marks.
- *
- * @description
- * Provides a simple means of markup for quoting text to be used in output.
- * Use this to quote names of variables, methods, and packages.
- *
- * <samp>package 'foo' cannot be found</samp>
- *
- * @private
- * @param {string} str - Value to be quoted.
- * @returns {string} quoted value
- * @example
- * sQuote('n') // => 'n'
- */
-exports.sQuote = function(str) {
-  return "'" + str + "'";
-};
-
-/**
- * Double quote text by combining with undirectional ASCII quotation marks.
- *
- * @description
- * Provides a simple means of markup for quoting text to be used in output.
- * Use this to quote names of datatypes, classes, pathnames, and strings.
- *
- * <samp>argument 'value' must be "string" or "number"</samp>
- *
- * @private
- * @param {string} str - Value to be quoted.
- * @returns {string} quoted value
- * @example
- * dQuote('number') // => "number"
- */
-exports.dQuote = function(str) {
-  return '"' + str + '"';
-};
-
-/**
- * It's a noop.
- * @public
- */
-exports.noop = function() {};
-
-/**
- * Creates a map-like object.
- *
- * @description
- * A "map" is an object with no prototype, for our purposes. In some cases
- * this would be more appropriate than a `Map`, especially if your environment
- * doesn't support it. Recommended for use in Mocha's public APIs.
- *
- * @public
- * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map|MDN:Map}
- * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create#Custom_and_Null_objects|MDN:Object.create - Custom objects}
- * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign|MDN:Object.assign}
- * @param {...*} [obj] - Arguments to `Object.assign()`.
- * @returns {Object} An object with no prototype, having `...obj` properties
- */
-exports.createMap = function(obj) {
-  return assign.apply(
-    null,
-    [Object.create(null)].concat(Array.prototype.slice.call(arguments))
-  );
-};
-
-/**
- * Creates a read-only map-like object.
- *
- * @description
- * This differs from {@link module:utils.createMap createMap} only in that
- * the argument must be non-empty, because the result is frozen.
- *
- * @see {@link module:utils.createMap createMap}
- * @param {...*} [obj] - Arguments to `Object.assign()`.
- * @returns {Object} A frozen object with no prototype, having `...obj` properties
- * @throws {TypeError} if argument is not a non-empty object.
- */
-exports.defineConstants = function(obj) {
-  if (type(obj) !== 'object' || !Object.keys(obj).length) {
-    throw new TypeError('Invalid argument; expected a non-empty object');
-  }
-  return Object.freeze(exports.createMap(obj));
-};
-
-/**
- * Whether current version of Node support ES modules
- *
- * @description
- * Versions prior to 10 did not support ES Modules, and version 10 has an old incompatibile version of ESM.
- * This function returns whether Node.JS has ES Module supports that is compatible with Mocha's needs,
- * which is version >=12.11.
- *
- * @param {partialSupport} whether the full Node.js ESM support is available (>= 12) or just something that supports the runtime (>= 10)
- *
- * @returns {Boolean} whether the current version of Node.JS supports ES Modules in a way that is compatible with Mocha
- */
-exports.supportsEsModules = function(partialSupport) {
-  if (!exports.isBrowser() && process.versions && process.versions.node) {
-    var versionFields = process.versions.node.split('.');
-    var major = +versionFields[0];
-    var minor = +versionFields[1];
-
-    if (!partialSupport) {
-      return major >= 13 || (major === 12 && minor >= 11);
-    } else {
-      return major >= 10;
-    }
-  }
-};
-
-/**
- * Returns current working directory
- *
- * Wrapper around `process.cwd()` for isolation
- * @private
- */
-exports.cwd = function cwd() {
-  return process.cwd();
-};
-
-/**
- * Returns `true` if Mocha is running in a browser.
- * Checks for `process.browser`.
- * @returns {boolean}
- * @private
- */
-exports.isBrowser = function isBrowser() {
-  return Boolean(process.browser);
-};
-
-}).call(this,require('_process'),require("buffer").Buffer)
-},{"./errors":6,"_process":67,"buffer":43,"fs":42,"glob":42,"he":54,"object.assign":63,"path":42,"util":89}],39:[function(require,module,exports){
-'use strict'
-
-exports.byteLength = byteLength
-exports.toByteArray = toByteArray
-exports.fromByteArray = fromByteArray
-
-var lookup = []
-var revLookup = []
-var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
-
-var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
-for (var i = 0, len = code.length; i < len; ++i) {
-  lookup[i] = code[i]
-  revLookup[code.charCodeAt(i)] = i
-}
-
-// Support decoding URL-safe base64 strings, as Node.js does.
-// See: https://en.wikipedia.org/wiki/Base64#URL_applications
-revLookup['-'.charCodeAt(0)] = 62
-revLookup['_'.charCodeAt(0)] = 63
-
-function getLens (b64) {
-  var len = b64.length
-
-  if (len % 4 > 0) {
-    throw new Error('Invalid string. Length must be a multiple of 4')
-  }
-
-  // Trim off extra bytes after placeholder bytes are found
-  // See: https://github.com/beatgammit/base64-js/issues/42
-  var validLen = b64.indexOf('=')
-  if (validLen === -1) validLen = len
-
-  var placeHoldersLen = validLen === len
-    ? 0
-    : 4 - (validLen % 4)
-
-  return [validLen, placeHoldersLen]
-}
-
-// base64 is 4/3 + up to two characters of the original data
-function byteLength (b64) {
-  var lens = getLens(b64)
-  var validLen = lens[0]
-  var placeHoldersLen = lens[1]
-  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
-}
-
-function _byteLength (b64, validLen, placeHoldersLen) {
-  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
-}
-
-function toByteArray (b64) {
-  var tmp
-  var lens = getLens(b64)
-  var validLen = lens[0]
-  var placeHoldersLen = lens[1]
-
-  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
-
-  var curByte = 0
-
-  // if there are placeholders, only get up to the last complete 4 chars
-  var len = placeHoldersLen > 0
-    ? validLen - 4
-    : validLen
-
-  var i
-  for (i = 0; i < len; i += 4) {
-    tmp =
-      (revLookup[b64.charCodeAt(i)] << 18) |
-      (revLookup[b64.charCodeAt(i + 1)] << 12) |
-      (revLookup[b64.charCodeAt(i + 2)] << 6) |
-      revLookup[b64.charCodeAt(i + 3)]
-    arr[curByte++] = (tmp >> 16) & 0xFF
-    arr[curByte++] = (tmp >> 8) & 0xFF
-    arr[curByte++] = tmp & 0xFF
-  }
-
-  if (placeHoldersLen === 2) {
-    tmp =
-      (revLookup[b64.charCodeAt(i)] << 2) |
-      (revLookup[b64.charCodeAt(i + 1)] >> 4)
-    arr[curByte++] = tmp & 0xFF
-  }
-
-  if (placeHoldersLen === 1) {
-    tmp =
-      (revLookup[b64.charCodeAt(i)] << 10) |
-      (revLookup[b64.charCodeAt(i + 1)] << 4) |
-      (revLookup[b64.charCodeAt(i + 2)] >> 2)
-    arr[curByte++] = (tmp >> 8) & 0xFF
-    arr[curByte++] = tmp & 0xFF
-  }
-
-  return arr
-}
-
-function tripletToBase64 (num) {
-  return lookup[num >> 18 & 0x3F] +
-    lookup[num >> 12 & 0x3F] +
-    lookup[num >> 6 & 0x3F] +
-    lookup[num & 0x3F]
-}
-
-function encodeChunk (uint8, start, end) {
-  var tmp
-  var output = []
-  for (var i = start; i < end; i += 3) {
-    tmp =
-      ((uint8[i] << 16) & 0xFF0000) +
-      ((uint8[i + 1] << 8) & 0xFF00) +
-      (uint8[i + 2] & 0xFF)
-    output.push(tripletToBase64(tmp))
-  }
-  return output.join('')
-}
-
-function fromByteArray (uint8) {
-  var tmp
-  var len = uint8.length
-  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
-  var parts = []
-  var maxChunkLength = 16383 // must be multiple of 3
-
-  // go through the array every three bytes, we'll deal with trailing stuff later
-  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
-    parts.push(encodeChunk(
-      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
-    ))
-  }
-
-  // pad the end with zeros, but make sure to not forget the extra bytes
-  if (extraBytes === 1) {
-    tmp = uint8[len - 1]
-    parts.push(
-      lookup[tmp >> 2] +
-      lookup[(tmp << 4) & 0x3F] +
-      '=='
-    )
-  } else if (extraBytes === 2) {
-    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
-    parts.push(
-      lookup[tmp >> 10] +
-      lookup[(tmp >> 4) & 0x3F] +
-      lookup[(tmp << 2) & 0x3F] +
-      '='
-    )
-  }
-
-  return parts.join('')
-}
-
-},{}],40:[function(require,module,exports){
-
-},{}],41:[function(require,module,exports){
-(function (process){
-var WritableStream = require('stream').Writable
-var inherits = require('util').inherits
-
-module.exports = BrowserStdout
-
-
-inherits(BrowserStdout, WritableStream)
-
-function BrowserStdout(opts) {
-  if (!(this instanceof BrowserStdout)) return new BrowserStdout(opts)
-
-  opts = opts || {}
-  WritableStream.call(this, opts)
-  this.label = (opts.label !== undefined) ? opts.label : 'stdout'
-}
-
-BrowserStdout.prototype._write = function(chunks, encoding, cb) {
-  var output = chunks.toString ? chunks.toString() : chunks
-  if (this.label === false) {
-    console.log(output)
-  } else {
-    console.log(this.label+':', output)
-  }
-  process.nextTick(cb)
-}
-
-}).call(this,require('_process'))
-},{"_process":67,"stream":83,"util":89}],42:[function(require,module,exports){
-arguments[4][40][0].apply(exports,arguments)
-},{"dup":40}],43:[function(require,module,exports){
-(function (Buffer){
-/*!
- * The buffer module from node.js, for the browser.
- *
- * @author   Feross Aboukhadijeh <https://feross.org>
- * @license  MIT
- */
-/* eslint-disable no-proto */
-
-'use strict'
-
-var base64 = require('base64-js')
-var ieee754 = require('ieee754')
-
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
-
-var K_MAX_LENGTH = 0x7fffffff
-exports.kMaxLength = K_MAX_LENGTH
-
-/**
- * If `Buffer.TYPED_ARRAY_SUPPORT`:
- *   === true    Use Uint8Array implementation (fastest)
- *   === false   Print warning and recommend using `buffer` v4.x which has an Object
- *               implementation (most compatible, even IE6)
- *
- * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
- * Opera 11.6+, iOS 4.2+.
- *
- * We report that the browser does not support typed arrays if the are not subclassable
- * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
- * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
- * for __proto__ and has a buggy typed array implementation.
- */
-Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
-
-if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
-    typeof console.error === 'function') {
-  console.error(
-    'This browser lacks typed array (Uint8Array) support which is required by ' +
-    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
-  )
-}
-
-function typedArraySupport () {
-  // Can typed array instances can be augmented?
-  try {
-    var arr = new Uint8Array(1)
-    arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
-    return arr.foo() === 42
-  } catch (e) {
-    return false
-  }
-}
-
-Object.defineProperty(Buffer.prototype, 'parent', {
-  enumerable: true,
-  get: function () {
-    if (!Buffer.isBuffer(this)) return undefined
-    return this.buffer
-  }
-})
-
-Object.defineProperty(Buffer.prototype, 'offset', {
-  enumerable: true,
-  get: function () {
-    if (!Buffer.isBuffer(this)) return undefined
-    return this.byteOffset
-  }
-})
-
-function createBuffer (length) {
-  if (length > K_MAX_LENGTH) {
-    throw new RangeError('The value "' + length + '" is invalid for option "size"')
-  }
-  // Return an augmented `Uint8Array` instance
-  var buf = new Uint8Array(length)
-  buf.__proto__ = Buffer.prototype
-  return buf
-}
-
-/**
- * The Buffer constructor returns instances of `Uint8Array` that have their
- * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
- * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
- * and the `Uint8Array` methods. Square bracket notation works as expected -- it
- * returns a single octet.
- *
- * The `Uint8Array` prototype remains unmodified.
- */
-
-function Buffer (arg, encodingOrOffset, length) {
-  // Common case.
-  if (typeof arg === 'number') {
-    if (typeof encodingOrOffset === 'string') {
-      throw new TypeError(
-        'The "string" argument must be of type string. Received type number'
-      )
-    }
-    return allocUnsafe(arg)
-  }
-  return from(arg, encodingOrOffset, length)
-}
-
-// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-if (typeof Symbol !== 'undefined' && Symbol.species != null &&
-    Buffer[Symbol.species] === Buffer) {
-  Object.defineProperty(Buffer, Symbol.species, {
-    value: null,
-    configurable: true,
-    enumerable: false,
-    writable: false
-  })
-}
-
-Buffer.poolSize = 8192 // not used by this implementation
-
-function from (value, encodingOrOffset, length) {
-  if (typeof value === 'string') {
-    return fromString(value, encodingOrOffset)
-  }
-
-  if (ArrayBuffer.isView(value)) {
-    return fromArrayLike(value)
-  }
-
-  if (value == null) {
-    throw TypeError(
-      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
-      'or Array-like Object. Received type ' + (typeof value)
-    )
-  }
-
-  if (isInstance(value, ArrayBuffer) ||
-      (value && isInstance(value.buffer, ArrayBuffer))) {
-    return fromArrayBuffer(value, encodingOrOffset, length)
-  }
-
-  if (typeof value === 'number') {
-    throw new TypeError(
-      'The "value" argument must not be of type number. Received type number'
-    )
-  }
-
-  var valueOf = value.valueOf && value.valueOf()
-  if (valueOf != null && valueOf !== value) {
-    return Buffer.from(valueOf, encodingOrOffset, length)
-  }
-
-  var b = fromObject(value)
-  if (b) return b
-
-  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
-      typeof value[Symbol.toPrimitive] === 'function') {
-    return Buffer.from(
-      value[Symbol.toPrimitive]('string'), encodingOrOffset, length
-    )
-  }
-
-  throw new TypeError(
-    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
-    'or Array-like Object. Received type ' + (typeof value)
-  )
-}
-
-/**
- * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
- * if value is a number.
- * Buffer.from(str[, encoding])
- * Buffer.from(array)
- * Buffer.from(buffer)
- * Buffer.from(arrayBuffer[, byteOffset[, length]])
- **/
-Buffer.from = function (value, encodingOrOffset, length) {
-  return from(value, encodingOrOffset, length)
-}
-
-// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
-// https://github.com/feross/buffer/pull/148
-Buffer.prototype.__proto__ = Uint8Array.prototype
-Buffer.__proto__ = Uint8Array
-
-function assertSize (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('"size" argument must be of type number')
-  } else if (size < 0) {
-    throw new RangeError('The value "' + size + '" is invalid for option "size"')
-  }
-}
-
-function alloc (size, fill, encoding) {
-  assertSize(size)
-  if (size <= 0) {
-    return createBuffer(size)
-  }
-  if (fill !== undefined) {
-    // Only pay attention to encoding if it's a string. This
-    // prevents accidentally sending in a number that would
-    // be interpretted as a start offset.
-    return typeof encoding === 'string'
-      ? createBuffer(size).fill(fill, encoding)
-      : createBuffer(size).fill(fill)
-  }
-  return createBuffer(size)
-}
-
-/**
- * Creates a new filled Buffer instance.
- * alloc(size[, fill[, encoding]])
- **/
-Buffer.alloc = function (size, fill, encoding) {
-  return alloc(size, fill, encoding)
-}
-
-function allocUnsafe (size) {
-  assertSize(size)
-  return createBuffer(size < 0 ? 0 : checked(size) | 0)
-}
-
-/**
- * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
- * */
-Buffer.allocUnsafe = function (size) {
-  return allocUnsafe(size)
-}
-/**
- * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
- */
-Buffer.allocUnsafeSlow = function (size) {
-  return allocUnsafe(size)
-}
-
-function fromString (string, encoding) {
-  if (typeof encoding !== 'string' || encoding === '') {
-    encoding = 'utf8'
-  }
-
-  if (!Buffer.isEncoding(encoding)) {
-    throw new TypeError('Unknown encoding: ' + encoding)
-  }
-
-  var length = byteLength(string, encoding) | 0
-  var buf = createBuffer(length)
-
-  var actual = buf.write(string, encoding)
-
-  if (actual !== length) {
-    // Writing a hex string, for example, that contains invalid characters will
-    // cause everything after the first invalid character to be ignored. (e.g.
-    // 'abxxcd' will be treated as 'ab')
-    buf = buf.slice(0, actual)
-  }
-
-  return buf
-}
-
-function fromArrayLike (array) {
-  var length = array.length < 0 ? 0 : checked(array.length) | 0
-  var buf = createBuffer(length)
-  for (var i = 0; i < length; i += 1) {
-    buf[i] = array[i] & 255
-  }
-  return buf
-}
-
-function fromArrayBuffer (array, byteOffset, length) {
-  if (byteOffset < 0 || array.byteLength < byteOffset) {
-    throw new RangeError('"offset" is outside of buffer bounds')
-  }
-
-  if (array.byteLength < byteOffset + (length || 0)) {
-    throw new RangeError('"length" is outside of buffer bounds')
-  }
-
-  var buf
-  if (byteOffset === undefined && length === undefined) {
-    buf = new Uint8Array(array)
-  } else if (length === undefined) {
-    buf = new Uint8Array(array, byteOffset)
-  } else {
-    buf = new Uint8Array(array, byteOffset, length)
-  }
-
-  // Return an augmented `Uint8Array` instance
-  buf.__proto__ = Buffer.prototype
-  return buf
-}
-
-function fromObject (obj) {
-  if (Buffer.isBuffer(obj)) {
-    var len = checked(obj.length) | 0
-    var buf = createBuffer(len)
-
-    if (buf.length === 0) {
-      return buf
-    }
-
-    obj.copy(buf, 0, 0, len)
-    return buf
-  }
-
-  if (obj.length !== undefined) {
-    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
-      return createBuffer(0)
-    }
-    return fromArrayLike(obj)
-  }
-
-  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
-    return fromArrayLike(obj.data)
-  }
-}
-
-function checked (length) {
-  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
-  // length is NaN (which is otherwise coerced to zero.)
-  if (length >= K_MAX_LENGTH) {
-    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
-  }
-  return length | 0
-}
-
-function SlowBuffer (length) {
-  if (+length != length) { // eslint-disable-line eqeqeq
-    length = 0
-  }
-  return Buffer.alloc(+length)
-}
-
-Buffer.isBuffer = function isBuffer (b) {
-  return b != null && b._isBuffer === true &&
-    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
-}
-
-Buffer.compare = function compare (a, b) {
-  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
-  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
-  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
-    throw new TypeError(
-      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
-    )
-  }
-
-  if (a === b) return 0
-
-  var x = a.length
-  var y = b.length
-
-  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
-    if (a[i] !== b[i]) {
-      x = a[i]
-      y = b[i]
-      break
-    }
-  }
-
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
-}
-
-Buffer.isEncoding = function isEncoding (encoding) {
-  switch (String(encoding).toLowerCase()) {
-    case 'hex':
-    case 'utf8':
-    case 'utf-8':
-    case 'ascii':
-    case 'latin1':
-    case 'binary':
-    case 'base64':
-    case 'ucs2':
-    case 'ucs-2':
-    case 'utf16le':
-    case 'utf-16le':
-      return true
-    default:
-      return false
-  }
-}
-
-Buffer.concat = function concat (list, length) {
-  if (!Array.isArray(list)) {
-    throw new TypeError('"list" argument must be an Array of Buffers')
-  }
-
-  if (list.length === 0) {
-    return Buffer.alloc(0)
-  }
-
-  var i
-  if (length === undefined) {
-    length = 0
-    for (i = 0; i < list.length; ++i) {
-      length += list[i].length
-    }
-  }
-
-  var buffer = Buffer.allocUnsafe(length)
-  var pos = 0
-  for (i = 0; i < list.length; ++i) {
-    var buf = list[i]
-    if (isInstance(buf, Uint8Array)) {
-      buf = Buffer.from(buf)
-    }
-    if (!Buffer.isBuffer(buf)) {
-      throw new TypeError('"list" argument must be an Array of Buffers')
-    }
-    buf.copy(buffer, pos)
-    pos += buf.length
-  }
-  return buffer
-}
-
-function byteLength (string, encoding) {
-  if (Buffer.isBuffer(string)) {
-    return string.length
-  }
-  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
-    return string.byteLength
-  }
-  if (typeof string !== 'string') {
-    throw new TypeError(
-      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
-      'Received type ' + typeof string
-    )
-  }
-
-  var len = string.length
-  var mustMatch = (arguments.length > 2 && arguments[2] === true)
-  if (!mustMatch && len === 0) return 0
-
-  // Use a for loop to avoid recursion
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'ascii':
-      case 'latin1':
-      case 'binary':
-        return len
-      case 'utf8':
-      case 'utf-8':
-        return utf8ToBytes(string).length
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return len * 2
-      case 'hex':
-        return len >>> 1
-      case 'base64':
-        return base64ToBytes(string).length
-      default:
-        if (loweredCase) {
-          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
-        }
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
-    }
-  }
-}
-Buffer.byteLength = byteLength
-
-function slowToString (encoding, start, end) {
-  var loweredCase = false
-
-  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
-  // property of a typed array.
-
-  // This behaves neither like String nor Uint8Array in that we set start/end
-  // to their upper/lower bounds if the value passed is out of range.
-  // undefined is handled specially as per ECMA-262 6th Edition,
-  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
-  if (start === undefined || start < 0) {
-    start = 0
-  }
-  // Return early if start > this.length. Done here to prevent potential uint32
-  // coercion fail below.
-  if (start > this.length) {
-    return ''
-  }
-
-  if (end === undefined || end > this.length) {
-    end = this.length
-  }
-
-  if (end <= 0) {
-    return ''
-  }
-
-  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
-  end >>>= 0
-  start >>>= 0
-
-  if (end <= start) {
-    return ''
-  }
-
-  if (!encoding) encoding = 'utf8'
-
-  while (true) {
-    switch (encoding) {
-      case 'hex':
-        return hexSlice(this, start, end)
-
-      case 'utf8':
-      case 'utf-8':
-        return utf8Slice(this, start, end)
-
-      case 'ascii':
-        return asciiSlice(this, start, end)
-
-      case 'latin1':
-      case 'binary':
-        return latin1Slice(this, start, end)
-
-      case 'base64':
-        return base64Slice(this, start, end)
-
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return utf16leSlice(this, start, end)
-
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = (encoding + '').toLowerCase()
-        loweredCase = true
-    }
-  }
-}
-
-// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
-// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
-// reliably in a browserify context because there could be multiple different
-// copies of the 'buffer' package in use. This method works even for Buffer
-// instances that were created from another copy of the `buffer` package.
-// See: https://github.com/feross/buffer/issues/154
-Buffer.prototype._isBuffer = true
-
-function swap (b, n, m) {
-  var i = b[n]
-  b[n] = b[m]
-  b[m] = i
-}
-
-Buffer.prototype.swap16 = function swap16 () {
-  var len = this.length
-  if (len % 2 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 16-bits')
-  }
-  for (var i = 0; i < len; i += 2) {
-    swap(this, i, i + 1)
-  }
-  return this
-}
-
-Buffer.prototype.swap32 = function swap32 () {
-  var len = this.length
-  if (len % 4 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 32-bits')
-  }
-  for (var i = 0; i < len; i += 4) {
-    swap(this, i, i + 3)
-    swap(this, i + 1, i + 2)
-  }
-  return this
-}
-
-Buffer.prototype.swap64 = function swap64 () {
-  var len = this.length
-  if (len % 8 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 64-bits')
-  }
-  for (var i = 0; i < len; i += 8) {
-    swap(this, i, i + 7)
-    swap(this, i + 1, i + 6)
-    swap(this, i + 2, i + 5)
-    swap(this, i + 3, i + 4)
-  }
-  return this
-}
-
-Buffer.prototype.toString = function toString () {
-  var length = this.length
-  if (length === 0) return ''
-  if (arguments.length === 0) return utf8Slice(this, 0, length)
-  return slowToString.apply(this, arguments)
-}
-
-Buffer.prototype.toLocaleString = Buffer.prototype.toString
-
-Buffer.prototype.equals = function equals (b) {
-  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
-  if (this === b) return true
-  return Buffer.compare(this, b) === 0
-}
-
-Buffer.prototype.inspect = function inspect () {
-  var str = ''
-  var max = exports.INSPECT_MAX_BYTES
-  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
-  if (this.length > max) str += ' ... '
-  return '<Buffer ' + str + '>'
-}
-
-Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
-  if (isInstance(target, Uint8Array)) {
-    target = Buffer.from(target, target.offset, target.byteLength)
-  }
-  if (!Buffer.isBuffer(target)) {
-    throw new TypeError(
-      'The "target" argument must be one of type Buffer or Uint8Array. ' +
-      'Received type ' + (typeof target)
-    )
-  }
-
-  if (start === undefined) {
-    start = 0
-  }
-  if (end === undefined) {
-    end = target ? target.length : 0
-  }
-  if (thisStart === undefined) {
-    thisStart = 0
-  }
-  if (thisEnd === undefined) {
-    thisEnd = this.length
-  }
-
-  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
-    throw new RangeError('out of range index')
-  }
-
-  if (thisStart >= thisEnd && start >= end) {
-    return 0
-  }
-  if (thisStart >= thisEnd) {
-    return -1
-  }
-  if (start >= end) {
-    return 1
-  }
-
-  start >>>= 0
-  end >>>= 0
-  thisStart >>>= 0
-  thisEnd >>>= 0
-
-  if (this === target) return 0
-
-  var x = thisEnd - thisStart
-  var y = end - start
-  var len = Math.min(x, y)
-
-  var thisCopy = this.slice(thisStart, thisEnd)
-  var targetCopy = target.slice(start, end)
-
-  for (var i = 0; i < len; ++i) {
-    if (thisCopy[i] !== targetCopy[i]) {
-      x = thisCopy[i]
-      y = targetCopy[i]
-      break
-    }
-  }
-
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
-}
-
-// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
-// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
-//
-// Arguments:
-// - buffer - a Buffer to search
-// - val - a string, Buffer, or number
-// - byteOffset - an index into `buffer`; will be clamped to an int32
-// - encoding - an optional encoding, relevant is val is a string
-// - dir - true for indexOf, false for lastIndexOf
-function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
-  // Empty buffer means no match
-  if (buffer.length === 0) return -1
-
-  // Normalize byteOffset
-  if (typeof byteOffset === 'string') {
-    encoding = byteOffset
-    byteOffset = 0
-  } else if (byteOffset > 0x7fffffff) {
-    byteOffset = 0x7fffffff
-  } else if (byteOffset < -0x80000000) {
-    byteOffset = -0x80000000
-  }
-  byteOffset = +byteOffset // Coerce to Number.
-  if (numberIsNaN(byteOffset)) {
-    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
-    byteOffset = dir ? 0 : (buffer.length - 1)
-  }
-
-  // Normalize byteOffset: negative offsets start from the end of the buffer
-  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
-  if (byteOffset >= buffer.length) {
-    if (dir) return -1
-    else byteOffset = buffer.length - 1
-  } else if (byteOffset < 0) {
-    if (dir) byteOffset = 0
-    else return -1
-  }
-
-  // Normalize val
-  if (typeof val === 'string') {
-    val = Buffer.from(val, encoding)
-  }
-
-  // Finally, search either indexOf (if dir is true) or lastIndexOf
-  if (Buffer.isBuffer(val)) {
-    // Special case: looking for empty string/buffer always fails
-    if (val.length === 0) {
-      return -1
-    }
-    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
-  } else if (typeof val === 'number') {
-    val = val & 0xFF // Search for a byte value [0-255]
-    if (typeof Uint8Array.prototype.indexOf === 'function') {
-      if (dir) {
-        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
-      } else {
-        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
-      }
-    }
-    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
-  }
-
-  throw new TypeError('val must be string, number or Buffer')
-}
-
-function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
-  var indexSize = 1
-  var arrLength = arr.length
-  var valLength = val.length
-
-  if (encoding !== undefined) {
-    encoding = String(encoding).toLowerCase()
-    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
-        encoding === 'utf16le' || encoding === 'utf-16le') {
-      if (arr.length < 2 || val.length < 2) {
-        return -1
-      }
-      indexSize = 2
-      arrLength /= 2
-      valLength /= 2
-      byteOffset /= 2
-    }
-  }
-
-  function read (buf, i) {
-    if (indexSize === 1) {
-      return buf[i]
-    } else {
-      return buf.readUInt16BE(i * indexSize)
-    }
-  }
-
-  var i
-  if (dir) {
-    var foundIndex = -1
-    for (i = byteOffset; i < arrLength; i++) {
-      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
-        if (foundIndex === -1) foundIndex = i
-        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
-      } else {
-        if (foundIndex !== -1) i -= i - foundIndex
-        foundIndex = -1
-      }
-    }
-  } else {
-    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
-    for (i = byteOffset; i >= 0; i--) {
-      var found = true
-      for (var j = 0; j < valLength; j++) {
-        if (read(arr, i + j) !== read(val, j)) {
-          found = false
-          break
-        }
-      }
-      if (found) return i
-    }
-  }
-
-  return -1
-}
-
-Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
-  return this.indexOf(val, byteOffset, encoding) !== -1
-}
-
-Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
-  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
-}
-
-Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
-  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
-}
-
-function hexWrite (buf, string, offset, length) {
-  offset = Number(offset) || 0
-  var remaining = buf.length - offset
-  if (!length) {
-    length = remaining
-  } else {
-    length = Number(length)
-    if (length > remaining) {
-      length = remaining
-    }
-  }
-
-  var strLen = string.length
-
-  if (length > strLen / 2) {
-    length = strLen / 2
-  }
-  for (var i = 0; i < length; ++i) {
-    var parsed = parseInt(string.substr(i * 2, 2), 16)
-    if (numberIsNaN(parsed)) return i
-    buf[offset + i] = parsed
-  }
-  return i
-}
-
-function utf8Write (buf, string, offset, length) {
-  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
-
-function asciiWrite (buf, string, offset, length) {
-  return blitBuffer(asciiToBytes(string), buf, offset, length)
-}
-
-function latin1Write (buf, string, offset, length) {
-  return asciiWrite(buf, string, offset, length)
-}
-
-function base64Write (buf, string, offset, length) {
-  return blitBuffer(base64ToBytes(string), buf, offset, length)
-}
-
-function ucs2Write (buf, string, offset, length) {
-  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
-}
-
-Buffer.prototype.write = function write (string, offset, length, encoding) {
-  // Buffer#write(string)
-  if (offset === undefined) {
-    encoding = 'utf8'
-    length = this.length
-    offset = 0
-  // Buffer#write(string, encoding)
-  } else if (length === undefined && typeof offset === 'string') {
-    encoding = offset
-    length = this.length
-    offset = 0
-  // Buffer#write(string, offset[, length][, encoding])
-  } else if (isFinite(offset)) {
-    offset = offset >>> 0
-    if (isFinite(length)) {
-      length = length >>> 0
-      if (encoding === undefined) encoding = 'utf8'
-    } else {
-      encoding = length
-      length = undefined
-    }
-  } else {
-    throw new Error(
-      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
-    )
-  }
-
-  var remaining = this.length - offset
-  if (length === undefined || length > remaining) length = remaining
-
-  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('Attempt to write outside buffer bounds')
-  }
-
-  if (!encoding) encoding = 'utf8'
-
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'hex':
-        return hexWrite(this, string, offset, length)
-
-      case 'utf8':
-      case 'utf-8':
-        return utf8Write(this, string, offset, length)
-
-      case 'ascii':
-        return asciiWrite(this, string, offset, length)
-
-      case 'latin1':
-      case 'binary':
-        return latin1Write(this, string, offset, length)
-
-      case 'base64':
-        // Warning: maxLength not taken into account in base64Write
-        return base64Write(this, string, offset, length)
-
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return ucs2Write(this, string, offset, length)
-
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
-    }
-  }
-}
-
-Buffer.prototype.toJSON = function toJSON () {
-  return {
-    type: 'Buffer',
-    data: Array.prototype.slice.call(this._arr || this, 0)
-  }
-}
-
-function base64Slice (buf, start, end) {
-  if (start === 0 && end === buf.length) {
-    return base64.fromByteArray(buf)
-  } else {
-    return base64.fromByteArray(buf.slice(start, end))
-  }
-}
-
-function utf8Slice (buf, start, end) {
-  end = Math.min(buf.length, end)
-  var res = []
-
-  var i = start
-  while (i < end) {
-    var firstByte = buf[i]
-    var codePoint = null
-    var bytesPerSequence = (firstByte > 0xEF) ? 4
-      : (firstByte > 0xDF) ? 3
-        : (firstByte > 0xBF) ? 2
-          : 1
-
-    if (i + bytesPerSequence <= end) {
-      var secondByte, thirdByte, fourthByte, tempCodePoint
-
-      switch (bytesPerSequence) {
-        case 1:
-          if (firstByte < 0x80) {
-            codePoint = firstByte
-          }
-          break
-        case 2:
-          secondByte = buf[i + 1]
-          if ((secondByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
-            if (tempCodePoint > 0x7F) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 3:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
-            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 4:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          fourthByte = buf[i + 3]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
-            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
-              codePoint = tempCodePoint
-            }
-          }
-      }
-    }
-
-    if (codePoint === null) {
-      // we did not generate a valid codePoint so insert a
-      // replacement char (U+FFFD) and advance only 1 byte
-      codePoint = 0xFFFD
-      bytesPerSequence = 1
-    } else if (codePoint > 0xFFFF) {
-      // encode to utf16 (surrogate pair dance)
-      codePoint -= 0x10000
-      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
-      codePoint = 0xDC00 | codePoint & 0x3FF
-    }
-
-    res.push(codePoint)
-    i += bytesPerSequence
-  }
-
-  return decodeCodePointsArray(res)
-}
-
-// Based on http://stackoverflow.com/a/22747272/680742, the browser with
-// the lowest limit is Chrome, with 0x10000 args.
-// We go 1 magnitude less, for safety
-var MAX_ARGUMENTS_LENGTH = 0x1000
-
-function decodeCodePointsArray (codePoints) {
-  var len = codePoints.length
-  if (len <= MAX_ARGUMENTS_LENGTH) {
-    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
-  }
-
-  // Decode in chunks to avoid "call stack size exceeded".
-  var res = ''
-  var i = 0
-  while (i < len) {
-    res += String.fromCharCode.apply(
-      String,
-      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
-    )
-  }
-  return res
-}
-
-function asciiSlice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
-
-  for (var i = start; i < end; ++i) {
-    ret += String.fromCharCode(buf[i] & 0x7F)
-  }
-  return ret
-}
-
-function latin1Slice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
-
-  for (var i = start; i < end; ++i) {
-    ret += String.fromCharCode(buf[i])
-  }
-  return ret
-}
-
-function hexSlice (buf, start, end) {
-  var len = buf.length
-
-  if (!start || start < 0) start = 0
-  if (!end || end < 0 || end > len) end = len
-
-  var out = ''
-  for (var i = start; i < end; ++i) {
-    out += toHex(buf[i])
-  }
-  return out
-}
-
-function utf16leSlice (buf, start, end) {
-  var bytes = buf.slice(start, end)
-  var res = ''
-  for (var i = 0; i < bytes.length; i += 2) {
-    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
-  }
-  return res
-}
-
-Buffer.prototype.slice = function slice (start, end) {
-  var len = this.length
-  start = ~~start
-  end = end === undefined ? len : ~~end
-
-  if (start < 0) {
-    start += len
-    if (start < 0) start = 0
-  } else if (start > len) {
-    start = len
-  }
-
-  if (end < 0) {
-    end += len
-    if (end < 0) end = 0
-  } else if (end > len) {
-    end = len
-  }
-
-  if (end < start) end = start
-
-  var newBuf = this.subarray(start, end)
-  // Return an augmented `Uint8Array` instance
-  newBuf.__proto__ = Buffer.prototype
-  return newBuf
-}
-
-/*
- * Need to make sure that buffer isn't trying to write out of bounds.
- */
-function checkOffset (offset, ext, length) {
-  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
-  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
-}
-
-Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
-
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
-
-  return val
-}
-
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) {
-    checkOffset(offset, byteLength, this.length)
-  }
-
-  var val = this[offset + --byteLength]
-  var mul = 1
-  while (byteLength > 0 && (mul *= 0x100)) {
-    val += this[offset + --byteLength] * mul
-  }
-
-  return val
-}
-
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  return this[offset]
-}
-
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return this[offset] | (this[offset + 1] << 8)
-}
-
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return (this[offset] << 8) | this[offset + 1]
-}
-
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return ((this[offset]) |
-      (this[offset + 1] << 8) |
-      (this[offset + 2] << 16)) +
-      (this[offset + 3] * 0x1000000)
-}
-
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return (this[offset] * 0x1000000) +
-    ((this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    this[offset + 3])
-}
-
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
-
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
-  mul *= 0x80
-
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-
-  return val
-}
-
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
-
-  var i = byteLength
-  var mul = 1
-  var val = this[offset + --i]
-  while (i > 0 && (mul *= 0x100)) {
-    val += this[offset + --i] * mul
-  }
-  mul *= 0x80
-
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-
-  return val
-}
-
-Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  if (!(this[offset] & 0x80)) return (this[offset])
-  return ((0xff - this[offset] + 1) * -1)
-}
-
-Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset] | (this[offset + 1] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
-
-Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset + 1] | (this[offset] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
-
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return (this[offset]) |
-    (this[offset + 1] << 8) |
-    (this[offset + 2] << 16) |
-    (this[offset + 3] << 24)
-}
-
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return (this[offset] << 24) |
-    (this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    (this[offset + 3])
-}
-
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, true, 23, 4)
-}
-
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, false, 23, 4)
-}
-
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, true, 52, 8)
-}
-
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, false, 52, 8)
-}
-
-function checkInt (buf, value, offset, ext, max, min) {
-  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
-  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('Index out of range')
-}
-
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) {
-    var maxBytes = Math.pow(2, 8 * byteLength) - 1
-    checkInt(this, value, offset, byteLength, maxBytes, 0)
-  }
-
-  var mul = 1
-  var i = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) {
-    var maxBytes = Math.pow(2, 8 * byteLength) - 1
-    checkInt(this, value, offset, byteLength, maxBytes, 0)
-  }
-
-  var i = byteLength - 1
-  var mul = 1
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
-  this[offset] = (value & 0xff)
-  return offset + 1
-}
-
-Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  this[offset] = (value & 0xff)
-  this[offset + 1] = (value >>> 8)
-  return offset + 2
-}
-
-Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  this[offset] = (value >>> 8)
-  this[offset + 1] = (value & 0xff)
-  return offset + 2
-}
-
-Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  this[offset + 3] = (value >>> 24)
-  this[offset + 2] = (value >>> 16)
-  this[offset + 1] = (value >>> 8)
-  this[offset] = (value & 0xff)
-  return offset + 4
-}
-
-Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  this[offset] = (value >>> 24)
-  this[offset + 1] = (value >>> 16)
-  this[offset + 2] = (value >>> 8)
-  this[offset + 3] = (value & 0xff)
-  return offset + 4
-}
-
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    var limit = Math.pow(2, (8 * byteLength) - 1)
-
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
-
-  var i = 0
-  var mul = 1
-  var sub = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
-      sub = 1
-    }
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    var limit = Math.pow(2, (8 * byteLength) - 1)
-
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
-
-  var i = byteLength - 1
-  var mul = 1
-  var sub = 0
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
-      sub = 1
-    }
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
-  if (value < 0) value = 0xff + value + 1
-  this[offset] = (value & 0xff)
-  return offset + 1
-}
-
-Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  this[offset] = (value & 0xff)
-  this[offset + 1] = (value >>> 8)
-  return offset + 2
-}
-
-Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  this[offset] = (value >>> 8)
-  this[offset + 1] = (value & 0xff)
-  return offset + 2
-}
-
-Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  this[offset] = (value & 0xff)
-  this[offset + 1] = (value >>> 8)
-  this[offset + 2] = (value >>> 16)
-  this[offset + 3] = (value >>> 24)
-  return offset + 4
-}
-
-Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (value < 0) value = 0xffffffff + value + 1
-  this[offset] = (value >>> 24)
-  this[offset + 1] = (value >>> 16)
-  this[offset + 2] = (value >>> 8)
-  this[offset + 3] = (value & 0xff)
-  return offset + 4
-}
-
-function checkIEEE754 (buf, value, offset, ext, max, min) {
-  if (offset + ext > buf.length) throw new RangeError('Index out of range')
-  if (offset < 0) throw new RangeError('Index out of range')
-}
-
-function writeFloat (buf, value, offset, littleEndian, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 23, 4)
-  return offset + 4
-}
-
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, true, noAssert)
-}
-
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, false, noAssert)
-}
-
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 52, 8)
-  return offset + 8
-}
-
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, true, noAssert)
-}
-
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, false, noAssert)
-}
-
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
-  if (!start) start = 0
-  if (!end && end !== 0) end = this.length
-  if (targetStart >= target.length) targetStart = target.length
-  if (!targetStart) targetStart = 0
-  if (end > 0 && end < start) end = start
-
-  // Copy 0 bytes; we're done
-  if (end === start) return 0
-  if (target.length === 0 || this.length === 0) return 0
-
-  // Fatal error conditions
-  if (targetStart < 0) {
-    throw new RangeError('targetStart out of bounds')
-  }
-  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
-  if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
-  // Are we oob?
-  if (end > this.length) end = this.length
-  if (target.length - targetStart < end - start) {
-    end = target.length - targetStart + start
-  }
-
-  var len = end - start
-
-  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
-    // Use built-in when available, missing from IE11
-    this.copyWithin(targetStart, start, end)
-  } else if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (var i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start]
-    }
-  } else {
-    Uint8Array.prototype.set.call(
-      target,
-      this.subarray(start, end),
-      targetStart
-    )
-  }
-
-  return len
-}
-
-// Usage:
-//    buffer.fill(number[, offset[, end]])
-//    buffer.fill(buffer[, offset[, end]])
-//    buffer.fill(string[, offset[, end]][, encoding])
-Buffer.prototype.fill = function fill (val, start, end, encoding) {
-  // Handle string cases:
-  if (typeof val === 'string') {
-    if (typeof start === 'string') {
-      encoding = start
-      start = 0
-      end = this.length
-    } else if (typeof end === 'string') {
-      encoding = end
-      end = this.length
-    }
-    if (encoding !== undefined && typeof encoding !== 'string') {
-      throw new TypeError('encoding must be a string')
-    }
-    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
-      throw new TypeError('Unknown encoding: ' + encoding)
-    }
-    if (val.length === 1) {
-      var code = val.charCodeAt(0)
-      if ((encoding === 'utf8' && code < 128) ||
-          encoding === 'latin1') {
-        // Fast path: If `val` fits into a single byte, use that numeric value.
-        val = code
-      }
-    }
-  } else if (typeof val === 'number') {
-    val = val & 255
-  }
-
-  // Invalid ranges are not set to a default, so can range check early.
-  if (start < 0 || this.length < start || this.length < end) {
-    throw new RangeError('Out of range index')
-  }
-
-  if (end <= start) {
-    return this
-  }
-
-  start = start >>> 0
-  end = end === undefined ? this.length : end >>> 0
-
-  if (!val) val = 0
-
-  var i
-  if (typeof val === 'number') {
-    for (i = start; i < end; ++i) {
-      this[i] = val
-    }
-  } else {
-    var bytes = Buffer.isBuffer(val)
-      ? val
-      : Buffer.from(val, encoding)
-    var len = bytes.length
-    if (len === 0) {
-      throw new TypeError('The value "' + val +
-        '" is invalid for argument "value"')
-    }
-    for (i = 0; i < end - start; ++i) {
-      this[i + start] = bytes[i % len]
-    }
-  }
-
-  return this
-}
-
-// HELPER FUNCTIONS
-// ================
-
-var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
-
-function base64clean (str) {
-  // Node takes equal signs as end of the Base64 encoding
-  str = str.split('=')[0]
-  // Node strips out invalid characters like \n and \t from the string, base64-js does not
-  str = str.trim().replace(INVALID_BASE64_RE, '')
-  // Node converts strings with length < 2 to ''
-  if (str.length < 2) return ''
-  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
-  while (str.length % 4 !== 0) {
-    str = str + '='
-  }
-  return str
-}
-
-function toHex (n) {
-  if (n < 16) return '0' + n.toString(16)
-  return n.toString(16)
-}
-
-function utf8ToBytes (string, units) {
-  units = units || Infinity
-  var codePoint
-  var length = string.length
-  var leadSurrogate = null
-  var bytes = []
-
-  for (var i = 0; i < length; ++i) {
-    codePoint = string.charCodeAt(i)
-
-    // is surrogate component
-    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-      // last char was a lead
-      if (!leadSurrogate) {
-        // no lead yet
-        if (codePoint > 0xDBFF) {
-          // unexpected trail
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        } else if (i + 1 === length) {
-          // unpaired lead
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        }
-
-        // valid lead
-        leadSurrogate = codePoint
-
-        continue
-      }
-
-      // 2 leads in a row
-      if (codePoint < 0xDC00) {
-        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-        leadSurrogate = codePoint
-        continue
-      }
-
-      // valid surrogate pair
-      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
-    } else if (leadSurrogate) {
-      // valid bmp char, but last char was a lead
-      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-    }
-
-    leadSurrogate = null
-
-    // encode utf8
-    if (codePoint < 0x80) {
-      if ((units -= 1) < 0) break
-      bytes.push(codePoint)
-    } else if (codePoint < 0x800) {
-      if ((units -= 2) < 0) break
-      bytes.push(
-        codePoint >> 0x6 | 0xC0,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x10000) {
-      if ((units -= 3) < 0) break
-      bytes.push(
-        codePoint >> 0xC | 0xE0,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x110000) {
-      if ((units -= 4) < 0) break
-      bytes.push(
-        codePoint >> 0x12 | 0xF0,
-        codePoint >> 0xC & 0x3F | 0x80,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else {
-      throw new Error('Invalid code point')
-    }
-  }
-
-  return bytes
-}
-
-function asciiToBytes (str) {
-  var byteArray = []
-  for (var i = 0; i < str.length; ++i) {
-    // Node's code seems to be doing this and not & 0x7F..
-    byteArray.push(str.charCodeAt(i) & 0xFF)
-  }
-  return byteArray
-}
-
-function utf16leToBytes (str, units) {
-  var c, hi, lo
-  var byteArray = []
-  for (var i = 0; i < str.length; ++i) {
-    if ((units -= 2) < 0) break
-
-    c = str.charCodeAt(i)
-    hi = c >> 8
-    lo = c % 256
-    byteArray.push(lo)
-    byteArray.push(hi)
-  }
-
-  return byteArray
-}
-
-function base64ToBytes (str) {
-  return base64.toByteArray(base64clean(str))
-}
-
-function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; ++i) {
-    if ((i + offset >= dst.length) || (i >= src.length)) break
-    dst[i + offset] = src[i]
-  }
-  return i
-}
-
-// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
-// the `instanceof` check but they should be treated as of that type.
-// See: https://github.com/feross/buffer/issues/166
-function isInstance (obj, type) {
-  return obj instanceof type ||
-    (obj != null && obj.constructor != null && obj.constructor.name != null &&
-      obj.constructor.name === type.name)
-}
-function numberIsNaN (obj) {
-  // For IE11 support
-  return obj !== obj // eslint-disable-line no-self-compare
-}
-
-}).call(this,require("buffer").Buffer)
-},{"base64-js":39,"buffer":43,"ieee754":55}],44:[function(require,module,exports){
-(function (Buffer){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-
-function isArray(arg) {
-  if (Array.isArray) {
-    return Array.isArray(arg);
-  }
-  return objectToString(arg) === '[object Array]';
-}
-exports.isArray = isArray;
-
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
-
-function isNull(arg) {
-  return arg === null;
-}
-exports.isNull = isNull;
-
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
-
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
-
-function isString(arg) {
-  return typeof arg === 'string';
-}
-exports.isString = isString;
-
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
-
-function isUndefined(arg) {
-  return arg === void 0;
-}
-exports.isUndefined = isUndefined;
-
-function isRegExp(re) {
-  return objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
-
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
-
-function isDate(d) {
-  return objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
-
-function isError(e) {
-  return (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
-
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
-
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
-}
-exports.isPrimitive = isPrimitive;
-
-exports.isBuffer = Buffer.isBuffer;
-
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
-}
-
-}).call(this,{"isBuffer":require("../../insert-module-globals/node_modules/is-buffer/index.js")})
-},{"../../insert-module-globals/node_modules/is-buffer/index.js":57}],45:[function(require,module,exports){
-(function (process){
-"use strict";
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-/* eslint-env browser */
-
-/**
- * This is the web browser implementation of `debug()`.
- */
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = localstorage();
-/**
- * Colors.
- */
-
-exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-// eslint-disable-next-line complexity
-
-function useColors() {
-  // NB: In an Electron preload script, document will be defined but not fully
-  // initialized. Since we know we're in Chrome, we'll just detect this case
-  // explicitly
-  if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
-    return true;
-  } // Internet Explorer and Edge do not support colors.
-
-
-  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
-    return false;
-  } // Is webkit? http://stackoverflow.com/a/16459606/376773
-  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
-
-
-  return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || // Is firebug? http://stackoverflow.com/a/398120/376773
-  typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || // Is firefox >= v31?
-  // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
-  typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || // Double check webkit in userAgent just in case we are in a worker
-  typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
-}
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
-
-
-function formatArgs(args) {
-  args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
-
-  if (!this.useColors) {
-    return;
-  }
-
-  var c = 'color: ' + this.color;
-  args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
-  // arguments passed either before or after the %c, so we need to
-  // figure out the correct index to insert the CSS into
-
-  var index = 0;
-  var lastC = 0;
-  args[0].replace(/%[a-zA-Z%]/g, function (match) {
-    if (match === '%%') {
-      return;
-    }
-
-    index++;
-
-    if (match === '%c') {
-      // We only are interested in the *last* %c
-      // (the user may have provided their own)
-      lastC = index;
-    }
-  });
-  args.splice(lastC, 0, c);
-}
-/**
- * Invokes `console.log()` when available.
- * No-op when `console.log` is not a "function".
- *
- * @api public
- */
-
-
-function log() {
-  var _console;
-
-  // This hackery is required for IE8/9, where
-  // the `console.log` function doesn't have 'apply'
-  return (typeof console === "undefined" ? "undefined" : _typeof(console)) === 'object' && console.log && (_console = console).log.apply(_console, arguments);
-}
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-
-function save(namespaces) {
-  try {
-    if (namespaces) {
-      exports.storage.setItem('debug', namespaces);
-    } else {
-      exports.storage.removeItem('debug');
-    }
-  } catch (error) {// Swallow
-    // XXX (@Qix-) should we be logging these?
-  }
-}
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-
-function load() {
-  var r;
-
-  try {
-    r = exports.storage.getItem('debug');
-  } catch (error) {} // Swallow
-  // XXX (@Qix-) should we be logging these?
-  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
-
-
-  if (!r && typeof process !== 'undefined' && 'env' in process) {
-    r = process.env.DEBUG;
-  }
-
-  return r;
-}
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
-
-
-function localstorage() {
-  try {
-    // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
-    // The Browser also has localStorage in the global context.
-    return localStorage;
-  } catch (error) {// Swallow
-    // XXX (@Qix-) should we be logging these?
-  }
-}
-
-module.exports = require('./common')(exports);
-var formatters = module.exports.formatters;
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
-
-formatters.j = function (v) {
-  try {
-    return JSON.stringify(v);
-  } catch (error) {
-    return '[UnexpectedJSONParseError]: ' + error.message;
-  }
-};
-
-
-}).call(this,require('_process'))
-},{"./common":46,"_process":67}],46:[function(require,module,exports){
-"use strict";
-
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- */
-function setup(env) {
-  createDebug.debug = createDebug;
-  createDebug.default = createDebug;
-  createDebug.coerce = coerce;
-  createDebug.disable = disable;
-  createDebug.enable = enable;
-  createDebug.enabled = enabled;
-  createDebug.humanize = require('ms');
-  Object.keys(env).forEach(function (key) {
-    createDebug[key] = env[key];
-  });
-  /**
-  * Active `debug` instances.
-  */
-
-  createDebug.instances = [];
-  /**
-  * The currently active debug mode names, and names to skip.
-  */
-
-  createDebug.names = [];
-  createDebug.skips = [];
-  /**
-  * Map of special "%n" handling functions, for the debug "format" argument.
-  *
-  * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
-  */
-
-  createDebug.formatters = {};
-  /**
-  * Selects a color for a debug namespace
-  * @param {String} namespace The namespace string for the for the debug instance to be colored
-  * @return {Number|String} An ANSI color code for the given namespace
-  * @api private
-  */
-
-  function selectColor(namespace) {
-    var hash = 0;
-
-    for (var i = 0; i < namespace.length; i++) {
-      hash = (hash << 5) - hash + namespace.charCodeAt(i);
-      hash |= 0; // Convert to 32bit integer
-    }
-
-    return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
-  }
-
-  createDebug.selectColor = selectColor;
-  /**
-  * Create a debugger with the given `namespace`.
-  *
-  * @param {String} namespace
-  * @return {Function}
-  * @api public
-  */
-
-  function createDebug(namespace) {
-    var prevTime;
-
-    function debug() {
-      // Disabled?
-      if (!debug.enabled) {
-        return;
-      }
-
-      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-        args[_key] = arguments[_key];
-      }
-
-      var self = debug; // Set `diff` timestamp
-
-      var curr = Number(new Date());
-      var ms = curr - (prevTime || curr);
-      self.diff = ms;
-      self.prev = prevTime;
-      self.curr = curr;
-      prevTime = curr;
-      args[0] = createDebug.coerce(args[0]);
-
-      if (typeof args[0] !== 'string') {
-        // Anything else let's inspect with %O
-        args.unshift('%O');
-      } // Apply any `formatters` transformations
-
-
-      var index = 0;
-      args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
-        // If we encounter an escaped % then don't increase the array index
-        if (match === '%%') {
-          return match;
-        }
-
-        index++;
-        var formatter = createDebug.formatters[format];
-
-        if (typeof formatter === 'function') {
-          var val = args[index];
-          match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
-
-          args.splice(index, 1);
-          index--;
-        }
-
-        return match;
-      }); // Apply env-specific formatting (colors, etc.)
-
-      createDebug.formatArgs.call(self, args);
-      var logFn = self.log || createDebug.log;
-      logFn.apply(self, args);
-    }
-
-    debug.namespace = namespace;
-    debug.enabled = createDebug.enabled(namespace);
-    debug.useColors = createDebug.useColors();
-    debug.color = selectColor(namespace);
-    debug.destroy = destroy;
-    debug.extend = extend; // Debug.formatArgs = formatArgs;
-    // debug.rawLog = rawLog;
-    // env-specific initialization logic for debug instances
-
-    if (typeof createDebug.init === 'function') {
-      createDebug.init(debug);
-    }
-
-    createDebug.instances.push(debug);
-    return debug;
-  }
-
-  function destroy() {
-    var index = createDebug.instances.indexOf(this);
-
-    if (index !== -1) {
-      createDebug.instances.splice(index, 1);
-      return true;
-    }
-
-    return false;
-  }
-
-  function extend(namespace, delimiter) {
-    return createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
-  }
-  /**
-  * Enables a debug mode by namespaces. This can include modes
-  * separated by a colon and wildcards.
-  *
-  * @param {String} namespaces
-  * @api public
-  */
-
-
-  function enable(namespaces) {
-    createDebug.save(namespaces);
-    createDebug.names = [];
-    createDebug.skips = [];
-    var i;
-    var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
-    var len = split.length;
-
-    for (i = 0; i < len; i++) {
-      if (!split[i]) {
-        // ignore empty strings
-        continue;
-      }
-
-      namespaces = split[i].replace(/\*/g, '.*?');
-
-      if (namespaces[0] === '-') {
-        createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
-      } else {
-        createDebug.names.push(new RegExp('^' + namespaces + '$'));
-      }
-    }
-
-    for (i = 0; i < createDebug.instances.length; i++) {
-      var instance = createDebug.instances[i];
-      instance.enabled = createDebug.enabled(instance.namespace);
-    }
-  }
-  /**
-  * Disable debug output.
-  *
-  * @api public
-  */
-
-
-  function disable() {
-    createDebug.enable('');
-  }
-  /**
-  * Returns true if the given mode name is enabled, false otherwise.
-  *
-  * @param {String} name
-  * @return {Boolean}
-  * @api public
-  */
-
-
-  function enabled(name) {
-    if (name[name.length - 1] === '*') {
-      return true;
-    }
-
-    var i;
-    var len;
-
-    for (i = 0, len = createDebug.skips.length; i < len; i++) {
-      if (createDebug.skips[i].test(name)) {
-        return false;
-      }
-    }
-
-    for (i = 0, len = createDebug.names.length; i < len; i++) {
-      if (createDebug.names[i].test(name)) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-  /**
-  * Coerce `val`.
-  *
-  * @param {Mixed} val
-  * @return {Mixed}
-  * @api private
-  */
-
-
-  function coerce(val) {
-    if (val instanceof Error) {
-      return val.stack || val.message;
-    }
-
-    return val;
-  }
-
-  createDebug.enable(createDebug.load());
-  return createDebug;
-}
-
-module.exports = setup;
-
-
-},{"ms":58}],47:[function(require,module,exports){
-'use strict';
-
-var keys = require('object-keys');
-var hasSymbols = typeof Symbol === 'function' && typeof Symbol('foo') === 'symbol';
-
-var toStr = Object.prototype.toString;
-var concat = Array.prototype.concat;
-var origDefineProperty = Object.defineProperty;
-
-var isFunction = function (fn) {
-	return typeof fn === 'function' && toStr.call(fn) === '[object Function]';
-};
-
-var arePropertyDescriptorsSupported = function () {
-	var obj = {};
+// mocha@9.1.2 transpiled to javascript ES5
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.mocha = factory());
+})(this, (function () { 'use strict';
+
+	var regeneratorRuntime;
+
+	var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+	function createCommonjsModule(fn, basedir, module) {
+		return module = {
+		  path: basedir,
+		  exports: {},
+		  require: function (path, base) {
+	      return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
+	    }
+		}, fn(module, module.exports), module.exports;
+	}
+
+	function getCjsExportFromNamespace (n) {
+		return n && n['default'] || n;
+	}
+
+	function commonjsRequire () {
+		throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
+	}
+
+	var check = function (it) {
+	  return it && it.Math == Math && it;
+	};
+
+	// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
+	var global_1 =
+	  // eslint-disable-next-line es/no-global-this -- safe
+	  check(typeof globalThis == 'object' && globalThis) ||
+	  check(typeof window == 'object' && window) ||
+	  // eslint-disable-next-line no-restricted-globals -- safe
+	  check(typeof self == 'object' && self) ||
+	  check(typeof commonjsGlobal == 'object' && commonjsGlobal) ||
+	  // eslint-disable-next-line no-new-func -- fallback
+	  (function () { return this; })() || Function('return this')();
+
+	var fails = function (exec) {
+	  try {
+	    return !!exec();
+	  } catch (error) {
+	    return true;
+	  }
+	};
+
+	// Detect IE8's incomplete defineProperty implementation
+	var descriptors = !fails(function () {
+	  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
+	  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
+	});
+
+	var $propertyIsEnumerable$1 = {}.propertyIsEnumerable;
+	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
+	var getOwnPropertyDescriptor$3 = Object.getOwnPropertyDescriptor;
+
+	// Nashorn ~ JDK8 bug
+	var NASHORN_BUG = getOwnPropertyDescriptor$3 && !$propertyIsEnumerable$1.call({ 1: 2 }, 1);
+
+	// `Object.prototype.propertyIsEnumerable` method implementation
+	// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
+	var f$7 = NASHORN_BUG ? function propertyIsEnumerable(V) {
+	  var descriptor = getOwnPropertyDescriptor$3(this, V);
+	  return !!descriptor && descriptor.enumerable;
+	} : $propertyIsEnumerable$1;
+
+	var objectPropertyIsEnumerable = {
+		f: f$7
+	};
+
+	var createPropertyDescriptor = function (bitmap, value) {
+	  return {
+	    enumerable: !(bitmap & 1),
+	    configurable: !(bitmap & 2),
+	    writable: !(bitmap & 4),
+	    value: value
+	  };
+	};
+
+	var toString$4 = {}.toString;
+
+	var classofRaw = function (it) {
+	  return toString$4.call(it).slice(8, -1);
+	};
+
+	var split = ''.split;
+
+	// fallback for non-array-like ES3 and non-enumerable old V8 strings
+	var indexedObject = fails(function () {
+	  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
+	  // eslint-disable-next-line no-prototype-builtins -- safe
+	  return !Object('z').propertyIsEnumerable(0);
+	}) ? function (it) {
+	  return classofRaw(it) == 'String' ? split.call(it, '') : Object(it);
+	} : Object;
+
+	// `RequireObjectCoercible` abstract operation
+	// https://tc39.es/ecma262/#sec-requireobjectcoercible
+	var requireObjectCoercible = function (it) {
+	  if (it == undefined) throw TypeError("Can't call method on " + it);
+	  return it;
+	};
+
+	// toObject with fallback for non-array-like ES3 strings
+
+
+
+	var toIndexedObject = function (it) {
+	  return indexedObject(requireObjectCoercible(it));
+	};
+
+	// `isCallable` abstract operation
+	// https://tc39.es/ecma262/#sec-iscallable
+	var isCallable = function (argument) {
+	  return typeof argument === 'function';
+	};
+
+	var isObject$1 = function (it) {
+	  return typeof it === 'object' ? it !== null : isCallable(it);
+	};
+
+	var aFunction = function (argument) {
+	  return isCallable(argument) ? argument : undefined;
+	};
+
+	var getBuiltIn = function (namespace, method) {
+	  return arguments.length < 2 ? aFunction(global_1[namespace]) : global_1[namespace] && global_1[namespace][method];
+	};
+
+	var engineUserAgent = getBuiltIn('navigator', 'userAgent') || '';
+
+	var process$5 = global_1.process;
+	var Deno = global_1.Deno;
+	var versions$2 = process$5 && process$5.versions || Deno && Deno.version;
+	var v8 = versions$2 && versions$2.v8;
+	var match, version$3;
+
+	if (v8) {
+	  match = v8.split('.');
+	  version$3 = match[0] < 4 ? 1 : match[0] + match[1];
+	} else if (engineUserAgent) {
+	  match = engineUserAgent.match(/Edge\/(\d+)/);
+	  if (!match || match[1] >= 74) {
+	    match = engineUserAgent.match(/Chrome\/(\d+)/);
+	    if (match) version$3 = match[1];
+	  }
+	}
+
+	var engineV8Version = version$3 && +version$3;
+
+	/* eslint-disable es/no-symbol -- required for testing */
+
+
+
+	// eslint-disable-next-line es/no-object-getownpropertysymbols -- required for testing
+	var nativeSymbol$1 = !!Object.getOwnPropertySymbols && !fails(function () {
+	  var symbol = Symbol();
+	  // Chrome 38 Symbol has incorrect toString conversion
+	  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
+	  return !String(symbol) || !(Object(symbol) instanceof Symbol) ||
+	    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
+	    !Symbol.sham && engineV8Version && engineV8Version < 41;
+	});
+
+	/* eslint-disable es/no-symbol -- required for testing */
+
+
+	var useSymbolAsUid = nativeSymbol$1
+	  && !Symbol.sham
+	  && typeof Symbol.iterator == 'symbol';
+
+	var isSymbol$1 = useSymbolAsUid ? function (it) {
+	  return typeof it == 'symbol';
+	} : function (it) {
+	  var $Symbol = getBuiltIn('Symbol');
+	  return isCallable($Symbol) && Object(it) instanceof $Symbol;
+	};
+
+	var tryToString = function (argument) {
+	  try {
+	    return String(argument);
+	  } catch (error) {
+	    return 'Object';
+	  }
+	};
+
+	// `Assert: IsCallable(argument) is true`
+	var aCallable = function (argument) {
+	  if (isCallable(argument)) return argument;
+	  throw TypeError(tryToString(argument) + ' is not a function');
+	};
+
+	// `GetMethod` abstract operation
+	// https://tc39.es/ecma262/#sec-getmethod
+	var getMethod = function (V, P) {
+	  var func = V[P];
+	  return func == null ? undefined : aCallable(func);
+	};
+
+	// `OrdinaryToPrimitive` abstract operation
+	// https://tc39.es/ecma262/#sec-ordinarytoprimitive
+	var ordinaryToPrimitive = function (input, pref) {
+	  var fn, val;
+	  if (pref === 'string' && isCallable(fn = input.toString) && !isObject$1(val = fn.call(input))) return val;
+	  if (isCallable(fn = input.valueOf) && !isObject$1(val = fn.call(input))) return val;
+	  if (pref !== 'string' && isCallable(fn = input.toString) && !isObject$1(val = fn.call(input))) return val;
+	  throw TypeError("Can't convert object to primitive value");
+	};
+
+	var setGlobal = function (key, value) {
+	  try {
+	    // eslint-disable-next-line es/no-object-defineproperty -- safe
+	    Object.defineProperty(global_1, key, { value: value, configurable: true, writable: true });
+	  } catch (error) {
+	    global_1[key] = value;
+	  } return value;
+	};
+
+	var SHARED = '__core-js_shared__';
+	var store$1 = global_1[SHARED] || setGlobal(SHARED, {});
+
+	var sharedStore = store$1;
+
+	var shared = createCommonjsModule(function (module) {
+	(module.exports = function (key, value) {
+	  return sharedStore[key] || (sharedStore[key] = value !== undefined ? value : {});
+	})('versions', []).push({
+	  version: '3.18.0',
+	  mode: 'global',
+	  copyright: '© 2021 Denis Pushkarev (zloirock.ru)'
+	});
+	});
+
+	// `ToObject` abstract operation
+	// https://tc39.es/ecma262/#sec-toobject
+	var toObject = function (argument) {
+	  return Object(requireObjectCoercible(argument));
+	};
+
+	var hasOwnProperty$1 = {}.hasOwnProperty;
+
+	var has$1 = Object.hasOwn || function hasOwn(it, key) {
+	  return hasOwnProperty$1.call(toObject(it), key);
+	};
+
+	var id = 0;
+	var postfix = Math.random();
+
+	var uid = function (key) {
+	  return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);
+	};
+
+	var WellKnownSymbolsStore$1 = shared('wks');
+	var Symbol$1 = global_1.Symbol;
+	var createWellKnownSymbol = useSymbolAsUid ? Symbol$1 : Symbol$1 && Symbol$1.withoutSetter || uid;
+
+	var wellKnownSymbol = function (name) {
+	  if (!has$1(WellKnownSymbolsStore$1, name) || !(nativeSymbol$1 || typeof WellKnownSymbolsStore$1[name] == 'string')) {
+	    if (nativeSymbol$1 && has$1(Symbol$1, name)) {
+	      WellKnownSymbolsStore$1[name] = Symbol$1[name];
+	    } else {
+	      WellKnownSymbolsStore$1[name] = createWellKnownSymbol('Symbol.' + name);
+	    }
+	  } return WellKnownSymbolsStore$1[name];
+	};
+
+	var TO_PRIMITIVE$1 = wellKnownSymbol('toPrimitive');
+
+	// `ToPrimitive` abstract operation
+	// https://tc39.es/ecma262/#sec-toprimitive
+	var toPrimitive = function (input, pref) {
+	  if (!isObject$1(input) || isSymbol$1(input)) return input;
+	  var exoticToPrim = getMethod(input, TO_PRIMITIVE$1);
+	  var result;
+	  if (exoticToPrim) {
+	    if (pref === undefined) pref = 'default';
+	    result = exoticToPrim.call(input, pref);
+	    if (!isObject$1(result) || isSymbol$1(result)) return result;
+	    throw TypeError("Can't convert object to primitive value");
+	  }
+	  if (pref === undefined) pref = 'number';
+	  return ordinaryToPrimitive(input, pref);
+	};
+
+	// `ToPropertyKey` abstract operation
+	// https://tc39.es/ecma262/#sec-topropertykey
+	var toPropertyKey = function (argument) {
+	  var key = toPrimitive(argument, 'string');
+	  return isSymbol$1(key) ? key : String(key);
+	};
+
+	var document$3 = global_1.document;
+	// typeof document.createElement is 'object' in old IE
+	var EXISTS$1 = isObject$1(document$3) && isObject$1(document$3.createElement);
+
+	var documentCreateElement = function (it) {
+	  return EXISTS$1 ? document$3.createElement(it) : {};
+	};
+
+	// Thank's IE8 for his funny defineProperty
+	var ie8DomDefine = !descriptors && !fails(function () {
+	  // eslint-disable-next-line es/no-object-defineproperty -- requied for testing
+	  return Object.defineProperty(documentCreateElement('div'), 'a', {
+	    get: function () { return 7; }
+	  }).a != 7;
+	});
+
+	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
+	var $getOwnPropertyDescriptor$1 = Object.getOwnPropertyDescriptor;
+
+	// `Object.getOwnPropertyDescriptor` method
+	// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
+	var f$6 = descriptors ? $getOwnPropertyDescriptor$1 : function getOwnPropertyDescriptor(O, P) {
+	  O = toIndexedObject(O);
+	  P = toPropertyKey(P);
+	  if (ie8DomDefine) try {
+	    return $getOwnPropertyDescriptor$1(O, P);
+	  } catch (error) { /* empty */ }
+	  if (has$1(O, P)) return createPropertyDescriptor(!objectPropertyIsEnumerable.f.call(O, P), O[P]);
+	};
+
+	var objectGetOwnPropertyDescriptor = {
+		f: f$6
+	};
+
+	// `Assert: Type(argument) is Object`
+	var anObject = function (argument) {
+	  if (isObject$1(argument)) return argument;
+	  throw TypeError(String(argument) + ' is not an object');
+	};
+
+	// eslint-disable-next-line es/no-object-defineproperty -- safe
+	var $defineProperty$1 = Object.defineProperty;
+
+	// `Object.defineProperty` method
+	// https://tc39.es/ecma262/#sec-object.defineproperty
+	var f$5 = descriptors ? $defineProperty$1 : function defineProperty(O, P, Attributes) {
+	  anObject(O);
+	  P = toPropertyKey(P);
+	  anObject(Attributes);
+	  if (ie8DomDefine) try {
+	    return $defineProperty$1(O, P, Attributes);
+	  } catch (error) { /* empty */ }
+	  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
+	  if ('value' in Attributes) O[P] = Attributes.value;
+	  return O;
+	};
+
+	var objectDefineProperty = {
+		f: f$5
+	};
+
+	var createNonEnumerableProperty = descriptors ? function (object, key, value) {
+	  return objectDefineProperty.f(object, key, createPropertyDescriptor(1, value));
+	} : function (object, key, value) {
+	  object[key] = value;
+	  return object;
+	};
+
+	var functionToString = Function.toString;
+
+	// this helper broken in `core-js@3.4.1-3.4.4`, so we can't use `shared` helper
+	if (!isCallable(sharedStore.inspectSource)) {
+	  sharedStore.inspectSource = function (it) {
+	    return functionToString.call(it);
+	  };
+	}
+
+	var inspectSource = sharedStore.inspectSource;
+
+	var WeakMap$1 = global_1.WeakMap;
+
+	var nativeWeakMap = isCallable(WeakMap$1) && /native code/.test(inspectSource(WeakMap$1));
+
+	var keys$4 = shared('keys');
+
+	var sharedKey = function (key) {
+	  return keys$4[key] || (keys$4[key] = uid(key));
+	};
+
+	var hiddenKeys$1 = {};
+
+	var OBJECT_ALREADY_INITIALIZED = 'Object already initialized';
+	var WeakMap = global_1.WeakMap;
+	var set$2, get$1, has;
+
+	var enforce = function (it) {
+	  return has(it) ? get$1(it) : set$2(it, {});
+	};
+
+	var getterFor = function (TYPE) {
+	  return function (it) {
+	    var state;
+	    if (!isObject$1(it) || (state = get$1(it)).type !== TYPE) {
+	      throw TypeError('Incompatible receiver, ' + TYPE + ' required');
+	    } return state;
+	  };
+	};
+
+	if (nativeWeakMap || sharedStore.state) {
+	  var store = sharedStore.state || (sharedStore.state = new WeakMap());
+	  var wmget = store.get;
+	  var wmhas = store.has;
+	  var wmset = store.set;
+	  set$2 = function (it, metadata) {
+	    if (wmhas.call(store, it)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
+	    metadata.facade = it;
+	    wmset.call(store, it, metadata);
+	    return metadata;
+	  };
+	  get$1 = function (it) {
+	    return wmget.call(store, it) || {};
+	  };
+	  has = function (it) {
+	    return wmhas.call(store, it);
+	  };
+	} else {
+	  var STATE = sharedKey('state');
+	  hiddenKeys$1[STATE] = true;
+	  set$2 = function (it, metadata) {
+	    if (has$1(it, STATE)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
+	    metadata.facade = it;
+	    createNonEnumerableProperty(it, STATE, metadata);
+	    return metadata;
+	  };
+	  get$1 = function (it) {
+	    return has$1(it, STATE) ? it[STATE] : {};
+	  };
+	  has = function (it) {
+	    return has$1(it, STATE);
+	  };
+	}
+
+	var internalState = {
+	  set: set$2,
+	  get: get$1,
+	  has: has,
+	  enforce: enforce,
+	  getterFor: getterFor
+	};
+
+	var FunctionPrototype$1 = Function.prototype;
+	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
+	var getDescriptor = descriptors && Object.getOwnPropertyDescriptor;
+
+	var EXISTS = has$1(FunctionPrototype$1, 'name');
+	// additional protection from minified / mangled / dropped function names
+	var PROPER = EXISTS && (function something() { /* empty */ }).name === 'something';
+	var CONFIGURABLE = EXISTS && (!descriptors || (descriptors && getDescriptor(FunctionPrototype$1, 'name').configurable));
+
+	var functionName = {
+	  EXISTS: EXISTS,
+	  PROPER: PROPER,
+	  CONFIGURABLE: CONFIGURABLE
+	};
+
+	var redefine = createCommonjsModule(function (module) {
+	var CONFIGURABLE_FUNCTION_NAME = functionName.CONFIGURABLE;
+
+	var getInternalState = internalState.get;
+	var enforceInternalState = internalState.enforce;
+	var TEMPLATE = String(String).split('String');
+
+	(module.exports = function (O, key, value, options) {
+	  var unsafe = options ? !!options.unsafe : false;
+	  var simple = options ? !!options.enumerable : false;
+	  var noTargetGet = options ? !!options.noTargetGet : false;
+	  var name = options && options.name !== undefined ? options.name : key;
+	  var state;
+	  if (isCallable(value)) {
+	    if (String(name).slice(0, 7) === 'Symbol(') {
+	      name = '[' + String(name).replace(/^Symbol\(([^)]*)\)/, '$1') + ']';
+	    }
+	    if (!has$1(value, 'name') || (CONFIGURABLE_FUNCTION_NAME && value.name !== name)) {
+	      createNonEnumerableProperty(value, 'name', name);
+	    }
+	    state = enforceInternalState(value);
+	    if (!state.source) {
+	      state.source = TEMPLATE.join(typeof name == 'string' ? name : '');
+	    }
+	  }
+	  if (O === global_1) {
+	    if (simple) O[key] = value;
+	    else setGlobal(key, value);
+	    return;
+	  } else if (!unsafe) {
+	    delete O[key];
+	  } else if (!noTargetGet && O[key]) {
+	    simple = true;
+	  }
+	  if (simple) O[key] = value;
+	  else createNonEnumerableProperty(O, key, value);
+	// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
+	})(Function.prototype, 'toString', function toString() {
+	  return isCallable(this) && getInternalState(this).source || inspectSource(this);
+	});
+	});
+
+	var ceil = Math.ceil;
+	var floor$6 = Math.floor;
+
+	// `ToInteger` abstract operation
+	// https://tc39.es/ecma262/#sec-tointeger
+	var toInteger = function (argument) {
+	  return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor$6 : ceil)(argument);
+	};
+
+	var min$7 = Math.min;
+
+	// `ToLength` abstract operation
+	// https://tc39.es/ecma262/#sec-tolength
+	var toLength = function (argument) {
+	  return argument > 0 ? min$7(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
+	};
+
+	var max$3 = Math.max;
+	var min$6 = Math.min;
+
+	// Helper for a popular repeating case of the spec:
+	// Let integer be ? ToInteger(index).
+	// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
+	var toAbsoluteIndex = function (index, length) {
+	  var integer = toInteger(index);
+	  return integer < 0 ? max$3(integer + length, 0) : min$6(integer, length);
+	};
+
+	// `Array.prototype.{ indexOf, includes }` methods implementation
+	var createMethod$5 = function (IS_INCLUDES) {
+	  return function ($this, el, fromIndex) {
+	    var O = toIndexedObject($this);
+	    var length = toLength(O.length);
+	    var index = toAbsoluteIndex(fromIndex, length);
+	    var value;
+	    // Array#includes uses SameValueZero equality algorithm
+	    // eslint-disable-next-line no-self-compare -- NaN check
+	    if (IS_INCLUDES && el != el) while (length > index) {
+	      value = O[index++];
+	      // eslint-disable-next-line no-self-compare -- NaN check
+	      if (value != value) return true;
+	    // Array#indexOf ignores holes, Array#includes - not
+	    } else for (;length > index; index++) {
+	      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
+	    } return !IS_INCLUDES && -1;
+	  };
+	};
+
+	var arrayIncludes = {
+	  // `Array.prototype.includes` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.includes
+	  includes: createMethod$5(true),
+	  // `Array.prototype.indexOf` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.indexof
+	  indexOf: createMethod$5(false)
+	};
+
+	var indexOf$1 = arrayIncludes.indexOf;
+
+
+	var objectKeysInternal = function (object, names) {
+	  var O = toIndexedObject(object);
+	  var i = 0;
+	  var result = [];
+	  var key;
+	  for (key in O) !has$1(hiddenKeys$1, key) && has$1(O, key) && result.push(key);
+	  // Don't enum bug & hidden keys
+	  while (names.length > i) if (has$1(O, key = names[i++])) {
+	    ~indexOf$1(result, key) || result.push(key);
+	  }
+	  return result;
+	};
+
+	// IE8- don't enum bug keys
+	var enumBugKeys = [
+	  'constructor',
+	  'hasOwnProperty',
+	  'isPrototypeOf',
+	  'propertyIsEnumerable',
+	  'toLocaleString',
+	  'toString',
+	  'valueOf'
+	];
+
+	var hiddenKeys = enumBugKeys.concat('length', 'prototype');
+
+	// `Object.getOwnPropertyNames` method
+	// https://tc39.es/ecma262/#sec-object.getownpropertynames
+	// eslint-disable-next-line es/no-object-getownpropertynames -- safe
+	var f$4 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
+	  return objectKeysInternal(O, hiddenKeys);
+	};
+
+	var objectGetOwnPropertyNames = {
+		f: f$4
+	};
+
+	// eslint-disable-next-line es/no-object-getownpropertysymbols -- safe
+	var f$3 = Object.getOwnPropertySymbols;
+
+	var objectGetOwnPropertySymbols = {
+		f: f$3
+	};
+
+	// all object keys, includes non-enumerable and symbols
+	var ownKeys$1 = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
+	  var keys = objectGetOwnPropertyNames.f(anObject(it));
+	  var getOwnPropertySymbols = objectGetOwnPropertySymbols.f;
+	  return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;
+	};
+
+	var copyConstructorProperties = function (target, source) {
+	  var keys = ownKeys$1(source);
+	  var defineProperty = objectDefineProperty.f;
+	  var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
+	  for (var i = 0; i < keys.length; i++) {
+	    var key = keys[i];
+	    if (!has$1(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));
+	  }
+	};
+
+	var replacement = /#|\.prototype\./;
+
+	var isForced = function (feature, detection) {
+	  var value = data[normalize$1(feature)];
+	  return value == POLYFILL ? true
+	    : value == NATIVE ? false
+	    : isCallable(detection) ? fails(detection)
+	    : !!detection;
+	};
+
+	var normalize$1 = isForced.normalize = function (string) {
+	  return String(string).replace(replacement, '.').toLowerCase();
+	};
+
+	var data = isForced.data = {};
+	var NATIVE = isForced.NATIVE = 'N';
+	var POLYFILL = isForced.POLYFILL = 'P';
+
+	var isForced_1 = isForced;
+
+	var getOwnPropertyDescriptor$2 = objectGetOwnPropertyDescriptor.f;
+
+
+
+
+
+
+	/*
+	  options.target      - name of the target object
+	  options.global      - target is the global object
+	  options.stat        - export as static methods of target
+	  options.proto       - export as prototype methods of target
+	  options.real        - real prototype method for the `pure` version
+	  options.forced      - export even if the native feature is available
+	  options.bind        - bind methods to the target, required for the `pure` version
+	  options.wrap        - wrap constructors to preventing global pollution, required for the `pure` version
+	  options.unsafe      - use the simple assignment of property instead of delete + defineProperty
+	  options.sham        - add a flag to not completely full polyfills
+	  options.enumerable  - export as enumerable property
+	  options.noTargetGet - prevent calling a getter on target
+	  options.name        - the .name of the function if it does not match the key
+	*/
+	var _export = function (options, source) {
+	  var TARGET = options.target;
+	  var GLOBAL = options.global;
+	  var STATIC = options.stat;
+	  var FORCED, target, key, targetProperty, sourceProperty, descriptor;
+	  if (GLOBAL) {
+	    target = global_1;
+	  } else if (STATIC) {
+	    target = global_1[TARGET] || setGlobal(TARGET, {});
+	  } else {
+	    target = (global_1[TARGET] || {}).prototype;
+	  }
+	  if (target) for (key in source) {
+	    sourceProperty = source[key];
+	    if (options.noTargetGet) {
+	      descriptor = getOwnPropertyDescriptor$2(target, key);
+	      targetProperty = descriptor && descriptor.value;
+	    } else targetProperty = target[key];
+	    FORCED = isForced_1(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
+	    // contained in target
+	    if (!FORCED && targetProperty !== undefined) {
+	      if (typeof sourceProperty === typeof targetProperty) continue;
+	      copyConstructorProperties(sourceProperty, targetProperty);
+	    }
+	    // add a flag to not completely full polyfills
+	    if (options.sham || (targetProperty && targetProperty.sham)) {
+	      createNonEnumerableProperty(sourceProperty, 'sham', true);
+	    }
+	    // extend global
+	    redefine(target, key, sourceProperty, options);
+	  }
+	};
+
+	// `IsArray` abstract operation
+	// https://tc39.es/ecma262/#sec-isarray
+	// eslint-disable-next-line es/no-array-isarray -- safe
+	var isArray$3 = Array.isArray || function isArray(argument) {
+	  return classofRaw(argument) == 'Array';
+	};
+
+	var TO_STRING_TAG$4 = wellKnownSymbol('toStringTag');
+	var test$2 = {};
+
+	test$2[TO_STRING_TAG$4] = 'z';
+
+	var toStringTagSupport = String(test$2) === '[object z]';
+
+	var TO_STRING_TAG$3 = wellKnownSymbol('toStringTag');
+	// ES3 wrong here
+	var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';
+
+	// fallback for IE11 Script Access Denied error
+	var tryGet = function (it, key) {
+	  try {
+	    return it[key];
+	  } catch (error) { /* empty */ }
+	};
+
+	// getting tag from ES6+ `Object.prototype.toString`
+	var classof = toStringTagSupport ? classofRaw : function (it) {
+	  var O, tag, result;
+	  return it === undefined ? 'Undefined' : it === null ? 'Null'
+	    // @@toStringTag case
+	    : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG$3)) == 'string' ? tag
+	    // builtinTag case
+	    : CORRECT_ARGUMENTS ? classofRaw(O)
+	    // ES3 arguments fallback
+	    : (result = classofRaw(O)) == 'Object' && isCallable(O.callee) ? 'Arguments' : result;
+	};
+
+	var empty = [];
+	var construct = getBuiltIn('Reflect', 'construct');
+	var constructorRegExp = /^\s*(?:class|function)\b/;
+	var exec = constructorRegExp.exec;
+	var INCORRECT_TO_STRING = !constructorRegExp.exec(function () { /* empty */ });
+
+	var isConstructorModern = function (argument) {
+	  if (!isCallable(argument)) return false;
+	  try {
+	    construct(Object, empty, argument);
+	    return true;
+	  } catch (error) {
+	    return false;
+	  }
+	};
+
+	var isConstructorLegacy = function (argument) {
+	  if (!isCallable(argument)) return false;
+	  switch (classof(argument)) {
+	    case 'AsyncFunction':
+	    case 'GeneratorFunction':
+	    case 'AsyncGeneratorFunction': return false;
+	    // we can't check .prototype since constructors produced by .bind haven't it
+	  } return INCORRECT_TO_STRING || !!exec.call(constructorRegExp, inspectSource(argument));
+	};
+
+	// `IsConstructor` abstract operation
+	// https://tc39.es/ecma262/#sec-isconstructor
+	var isConstructor = !construct || fails(function () {
+	  var called;
+	  return isConstructorModern(isConstructorModern.call)
+	    || !isConstructorModern(Object)
+	    || !isConstructorModern(function () { called = true; })
+	    || called;
+	}) ? isConstructorLegacy : isConstructorModern;
+
+	var SPECIES$6 = wellKnownSymbol('species');
+
+	// a part of `ArraySpeciesCreate` abstract operation
+	// https://tc39.es/ecma262/#sec-arrayspeciescreate
+	var arraySpeciesConstructor = function (originalArray) {
+	  var C;
+	  if (isArray$3(originalArray)) {
+	    C = originalArray.constructor;
+	    // cross-realm fallback
+	    if (isConstructor(C) && (C === Array || isArray$3(C.prototype))) C = undefined;
+	    else if (isObject$1(C)) {
+	      C = C[SPECIES$6];
+	      if (C === null) C = undefined;
+	    }
+	  } return C === undefined ? Array : C;
+	};
+
+	// `ArraySpeciesCreate` abstract operation
+	// https://tc39.es/ecma262/#sec-arrayspeciescreate
+	var arraySpeciesCreate = function (originalArray, length) {
+	  return new (arraySpeciesConstructor(originalArray))(length === 0 ? 0 : length);
+	};
+
+	var createProperty = function (object, key, value) {
+	  var propertyKey = toPropertyKey(key);
+	  if (propertyKey in object) objectDefineProperty.f(object, propertyKey, createPropertyDescriptor(0, value));
+	  else object[propertyKey] = value;
+	};
+
+	var SPECIES$5 = wellKnownSymbol('species');
+
+	var arrayMethodHasSpeciesSupport = function (METHOD_NAME) {
+	  // We can't use this feature detection in V8 since it causes
+	  // deoptimization and serious performance degradation
+	  // https://github.com/zloirock/core-js/issues/677
+	  return engineV8Version >= 51 || !fails(function () {
+	    var array = [];
+	    var constructor = array.constructor = {};
+	    constructor[SPECIES$5] = function () {
+	      return { foo: 1 };
+	    };
+	    return array[METHOD_NAME](Boolean).foo !== 1;
+	  });
+	};
+
+	var HAS_SPECIES_SUPPORT$3 = arrayMethodHasSpeciesSupport('splice');
+
+	var max$2 = Math.max;
+	var min$5 = Math.min;
+	var MAX_SAFE_INTEGER$1 = 0x1FFFFFFFFFFFFF;
+	var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';
+
+	// `Array.prototype.splice` method
+	// https://tc39.es/ecma262/#sec-array.prototype.splice
+	// with adding support of @@species
+	_export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$3 }, {
+	  splice: function splice(start, deleteCount /* , ...items */) {
+	    var O = toObject(this);
+	    var len = toLength(O.length);
+	    var actualStart = toAbsoluteIndex(start, len);
+	    var argumentsLength = arguments.length;
+	    var insertCount, actualDeleteCount, A, k, from, to;
+	    if (argumentsLength === 0) {
+	      insertCount = actualDeleteCount = 0;
+	    } else if (argumentsLength === 1) {
+	      insertCount = 0;
+	      actualDeleteCount = len - actualStart;
+	    } else {
+	      insertCount = argumentsLength - 2;
+	      actualDeleteCount = min$5(max$2(toInteger(deleteCount), 0), len - actualStart);
+	    }
+	    if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER$1) {
+	      throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);
+	    }
+	    A = arraySpeciesCreate(O, actualDeleteCount);
+	    for (k = 0; k < actualDeleteCount; k++) {
+	      from = actualStart + k;
+	      if (from in O) createProperty(A, k, O[from]);
+	    }
+	    A.length = actualDeleteCount;
+	    if (insertCount < actualDeleteCount) {
+	      for (k = actualStart; k < len - actualDeleteCount; k++) {
+	        from = k + actualDeleteCount;
+	        to = k + insertCount;
+	        if (from in O) O[to] = O[from];
+	        else delete O[to];
+	      }
+	      for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];
+	    } else if (insertCount > actualDeleteCount) {
+	      for (k = len - actualDeleteCount; k > actualStart; k--) {
+	        from = k + actualDeleteCount - 1;
+	        to = k + insertCount - 1;
+	        if (from in O) O[to] = O[from];
+	        else delete O[to];
+	      }
+	    }
+	    for (k = 0; k < insertCount; k++) {
+	      O[k + actualStart] = arguments[k + 2];
+	    }
+	    O.length = len - actualDeleteCount + insertCount;
+	    return A;
+	  }
+	});
+
+	// iterable DOM collections
+	// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
+	var domIterables = {
+	  CSSRuleList: 0,
+	  CSSStyleDeclaration: 0,
+	  CSSValueList: 0,
+	  ClientRectList: 0,
+	  DOMRectList: 0,
+	  DOMStringList: 0,
+	  DOMTokenList: 1,
+	  DataTransferItemList: 0,
+	  FileList: 0,
+	  HTMLAllCollection: 0,
+	  HTMLCollection: 0,
+	  HTMLFormElement: 0,
+	  HTMLSelectElement: 0,
+	  MediaList: 0,
+	  MimeTypeArray: 0,
+	  NamedNodeMap: 0,
+	  NodeList: 1,
+	  PaintRequestList: 0,
+	  Plugin: 0,
+	  PluginArray: 0,
+	  SVGLengthList: 0,
+	  SVGNumberList: 0,
+	  SVGPathSegList: 0,
+	  SVGPointList: 0,
+	  SVGStringList: 0,
+	  SVGTransformList: 0,
+	  SourceBufferList: 0,
+	  StyleSheetList: 0,
+	  TextTrackCueList: 0,
+	  TextTrackList: 0,
+	  TouchList: 0
+	};
+
+	// in old WebKit versions, `element.classList` is not an instance of global `DOMTokenList`
+
+
+	var classList = documentCreateElement('span').classList;
+	var DOMTokenListPrototype = classList && classList.constructor && classList.constructor.prototype;
+
+	var domTokenListPrototype = DOMTokenListPrototype === Object.prototype ? undefined : DOMTokenListPrototype;
+
+	// optional / simple context binding
+	var functionBindContext = function (fn, that, length) {
+	  aCallable(fn);
+	  if (that === undefined) return fn;
+	  switch (length) {
+	    case 0: return function () {
+	      return fn.call(that);
+	    };
+	    case 1: return function (a) {
+	      return fn.call(that, a);
+	    };
+	    case 2: return function (a, b) {
+	      return fn.call(that, a, b);
+	    };
+	    case 3: return function (a, b, c) {
+	      return fn.call(that, a, b, c);
+	    };
+	  }
+	  return function (/* ...args */) {
+	    return fn.apply(that, arguments);
+	  };
+	};
+
+	var push = [].push;
+
+	// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex, filterReject }` methods implementation
+	var createMethod$4 = function (TYPE) {
+	  var IS_MAP = TYPE == 1;
+	  var IS_FILTER = TYPE == 2;
+	  var IS_SOME = TYPE == 3;
+	  var IS_EVERY = TYPE == 4;
+	  var IS_FIND_INDEX = TYPE == 6;
+	  var IS_FILTER_REJECT = TYPE == 7;
+	  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
+	  return function ($this, callbackfn, that, specificCreate) {
+	    var O = toObject($this);
+	    var self = indexedObject(O);
+	    var boundFunction = functionBindContext(callbackfn, that, 3);
+	    var length = toLength(self.length);
+	    var index = 0;
+	    var create = specificCreate || arraySpeciesCreate;
+	    var target = IS_MAP ? create($this, length) : IS_FILTER || IS_FILTER_REJECT ? create($this, 0) : undefined;
+	    var value, result;
+	    for (;length > index; index++) if (NO_HOLES || index in self) {
+	      value = self[index];
+	      result = boundFunction(value, index, O);
+	      if (TYPE) {
+	        if (IS_MAP) target[index] = result; // map
+	        else if (result) switch (TYPE) {
+	          case 3: return true;              // some
+	          case 5: return value;             // find
+	          case 6: return index;             // findIndex
+	          case 2: push.call(target, value); // filter
+	        } else switch (TYPE) {
+	          case 4: return false;             // every
+	          case 7: push.call(target, value); // filterReject
+	        }
+	      }
+	    }
+	    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
+	  };
+	};
+
+	var arrayIteration = {
+	  // `Array.prototype.forEach` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.foreach
+	  forEach: createMethod$4(0),
+	  // `Array.prototype.map` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.map
+	  map: createMethod$4(1),
+	  // `Array.prototype.filter` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.filter
+	  filter: createMethod$4(2),
+	  // `Array.prototype.some` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.some
+	  some: createMethod$4(3),
+	  // `Array.prototype.every` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.every
+	  every: createMethod$4(4),
+	  // `Array.prototype.find` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.find
+	  find: createMethod$4(5),
+	  // `Array.prototype.findIndex` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.findIndex
+	  findIndex: createMethod$4(6),
+	  // `Array.prototype.filterReject` method
+	  // https://github.com/tc39/proposal-array-filtering
+	  filterReject: createMethod$4(7)
+	};
+
+	var arrayMethodIsStrict = function (METHOD_NAME, argument) {
+	  var method = [][METHOD_NAME];
+	  return !!method && fails(function () {
+	    // eslint-disable-next-line no-useless-call,no-throw-literal -- required for testing
+	    method.call(null, argument || function () { throw 1; }, 1);
+	  });
+	};
+
+	var $forEach$2 = arrayIteration.forEach;
+
+
+	var STRICT_METHOD$3 = arrayMethodIsStrict('forEach');
+
+	// `Array.prototype.forEach` method implementation
+	// https://tc39.es/ecma262/#sec-array.prototype.foreach
+	var arrayForEach = !STRICT_METHOD$3 ? function forEach(callbackfn /* , thisArg */) {
+	  return $forEach$2(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	// eslint-disable-next-line es/no-array-prototype-foreach -- safe
+	} : [].forEach;
+
+	var handlePrototype$1 = function (CollectionPrototype) {
+	  // some Chrome versions have non-configurable methods on DOMTokenList
+	  if (CollectionPrototype && CollectionPrototype.forEach !== arrayForEach) try {
+	    createNonEnumerableProperty(CollectionPrototype, 'forEach', arrayForEach);
+	  } catch (error) {
+	    CollectionPrototype.forEach = arrayForEach;
+	  }
+	};
+
+	for (var COLLECTION_NAME$1 in domIterables) {
+	  handlePrototype$1(global_1[COLLECTION_NAME$1] && global_1[COLLECTION_NAME$1].prototype);
+	}
+
+	handlePrototype$1(domTokenListPrototype);
+
+	var $filter$1 = arrayIteration.filter;
+
+
+	var HAS_SPECIES_SUPPORT$2 = arrayMethodHasSpeciesSupport('filter');
+
+	// `Array.prototype.filter` method
+	// https://tc39.es/ecma262/#sec-array.prototype.filter
+	// with adding support of @@species
+	_export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$2 }, {
+	  filter: function filter(callbackfn /* , thisArg */) {
+	    return $filter$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	  }
+	});
+
+	// `Object.keys` method
+	// https://tc39.es/ecma262/#sec-object.keys
+	// eslint-disable-next-line es/no-object-keys -- safe
+	var objectKeys = Object.keys || function keys(O) {
+	  return objectKeysInternal(O, enumBugKeys);
+	};
+
+	var FAILS_ON_PRIMITIVES$4 = fails(function () { objectKeys(1); });
+
+	// `Object.keys` method
+	// https://tc39.es/ecma262/#sec-object.keys
+	_export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$4 }, {
+	  keys: function keys(it) {
+	    return objectKeys(toObject(it));
+	  }
+	});
+
+	var toString_1 = function (argument) {
+	  if (classof(argument) === 'Symbol') throw TypeError('Cannot convert a Symbol value to a string');
+	  return String(argument);
+	};
+
+	// `RegExp.prototype.flags` getter implementation
+	// https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
+	var regexpFlags = function () {
+	  var that = anObject(this);
+	  var result = '';
+	  if (that.global) result += 'g';
+	  if (that.ignoreCase) result += 'i';
+	  if (that.multiline) result += 'm';
+	  if (that.dotAll) result += 's';
+	  if (that.unicode) result += 'u';
+	  if (that.sticky) result += 'y';
+	  return result;
+	};
+
+	// babel-minify and Closure Compiler transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError
+	var $RegExp$2 = global_1.RegExp;
+
+	var UNSUPPORTED_Y$3 = fails(function () {
+	  var re = $RegExp$2('a', 'y');
+	  re.lastIndex = 2;
+	  return re.exec('abcd') != null;
+	});
+
+	var BROKEN_CARET = fails(function () {
+	  // https://bugzilla.mozilla.org/show_bug.cgi?id=773687
+	  var re = $RegExp$2('^r', 'gy');
+	  re.lastIndex = 2;
+	  return re.exec('str') != null;
+	});
+
+	var regexpStickyHelpers = {
+		UNSUPPORTED_Y: UNSUPPORTED_Y$3,
+		BROKEN_CARET: BROKEN_CARET
+	};
+
+	// `Object.defineProperties` method
+	// https://tc39.es/ecma262/#sec-object.defineproperties
+	// eslint-disable-next-line es/no-object-defineproperties -- safe
+	var objectDefineProperties = descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
+	  anObject(O);
+	  var keys = objectKeys(Properties);
+	  var length = keys.length;
+	  var index = 0;
+	  var key;
+	  while (length > index) objectDefineProperty.f(O, key = keys[index++], Properties[key]);
+	  return O;
+	};
+
+	var html$1 = getBuiltIn('document', 'documentElement');
+
+	/* global ActiveXObject -- old IE, WSH */
+
+
+
+
+
+
+
+
+	var GT = '>';
+	var LT = '<';
+	var PROTOTYPE$2 = 'prototype';
+	var SCRIPT = 'script';
+	var IE_PROTO$1 = sharedKey('IE_PROTO');
+
+	var EmptyConstructor = function () { /* empty */ };
+
+	var scriptTag = function (content) {
+	  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
+	};
+
+	// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
+	var NullProtoObjectViaActiveX = function (activeXDocument) {
+	  activeXDocument.write(scriptTag(''));
+	  activeXDocument.close();
+	  var temp = activeXDocument.parentWindow.Object;
+	  activeXDocument = null; // avoid memory leak
+	  return temp;
+	};
+
+	// Create object with fake `null` prototype: use iframe Object with cleared prototype
+	var NullProtoObjectViaIFrame = function () {
+	  // Thrash, waste and sodomy: IE GC bug
+	  var iframe = documentCreateElement('iframe');
+	  var JS = 'java' + SCRIPT + ':';
+	  var iframeDocument;
+	  iframe.style.display = 'none';
+	  html$1.appendChild(iframe);
+	  // https://github.com/zloirock/core-js/issues/475
+	  iframe.src = String(JS);
+	  iframeDocument = iframe.contentWindow.document;
+	  iframeDocument.open();
+	  iframeDocument.write(scriptTag('document.F=Object'));
+	  iframeDocument.close();
+	  return iframeDocument.F;
+	};
+
+	// Check for document.domain and active x support
+	// No need to use active x approach when document.domain is not set
+	// see https://github.com/es-shims/es5-shim/issues/150
+	// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
+	// avoid IE GC bug
+	var activeXDocument;
+	var NullProtoObject = function () {
+	  try {
+	    activeXDocument = new ActiveXObject('htmlfile');
+	  } catch (error) { /* ignore */ }
+	  NullProtoObject = typeof document != 'undefined'
+	    ? document.domain && activeXDocument
+	      ? NullProtoObjectViaActiveX(activeXDocument) // old IE
+	      : NullProtoObjectViaIFrame()
+	    : NullProtoObjectViaActiveX(activeXDocument); // WSH
+	  var length = enumBugKeys.length;
+	  while (length--) delete NullProtoObject[PROTOTYPE$2][enumBugKeys[length]];
+	  return NullProtoObject();
+	};
+
+	hiddenKeys$1[IE_PROTO$1] = true;
+
+	// `Object.create` method
+	// https://tc39.es/ecma262/#sec-object.create
+	var objectCreate = Object.create || function create(O, Properties) {
+	  var result;
+	  if (O !== null) {
+	    EmptyConstructor[PROTOTYPE$2] = anObject(O);
+	    result = new EmptyConstructor();
+	    EmptyConstructor[PROTOTYPE$2] = null;
+	    // add "__proto__" for Object.getPrototypeOf polyfill
+	    result[IE_PROTO$1] = O;
+	  } else result = NullProtoObject();
+	  return Properties === undefined ? result : objectDefineProperties(result, Properties);
+	};
+
+	// babel-minify and Closure Compiler transpiles RegExp('.', 's') -> /./s and it causes SyntaxError
+	var $RegExp$1 = global_1.RegExp;
+
+	var regexpUnsupportedDotAll = fails(function () {
+	  var re = $RegExp$1('.', 's');
+	  return !(re.dotAll && re.exec('\n') && re.flags === 's');
+	});
+
+	// babel-minify and Closure Compiler transpiles RegExp('(?<a>b)', 'g') -> /(?<a>b)/g and it causes SyntaxError
+	var $RegExp = global_1.RegExp;
+
+	var regexpUnsupportedNcg = fails(function () {
+	  var re = $RegExp('(?<a>b)', 'g');
+	  return re.exec('b').groups.a !== 'b' ||
+	    'b'.replace(re, '$<a>c') !== 'bc';
+	});
+
+	/* eslint-disable regexp/no-empty-capturing-group, regexp/no-empty-group, regexp/no-lazy-ends -- testing */
+	/* eslint-disable regexp/no-useless-quantifier -- testing */
+
+
+
+
+
+	var getInternalState$5 = internalState.get;
+
+
+
+	var nativeExec = RegExp.prototype.exec;
+	var nativeReplace = shared('native-string-replace', String.prototype.replace);
+
+	var patchedExec = nativeExec;
+
+	var UPDATES_LAST_INDEX_WRONG = (function () {
+	  var re1 = /a/;
+	  var re2 = /b*/g;
+	  nativeExec.call(re1, 'a');
+	  nativeExec.call(re2, 'a');
+	  return re1.lastIndex !== 0 || re2.lastIndex !== 0;
+	})();
+
+	var UNSUPPORTED_Y$2 = regexpStickyHelpers.UNSUPPORTED_Y || regexpStickyHelpers.BROKEN_CARET;
+
+	// nonparticipating capturing group, copied from es5-shim's String#split patch.
+	var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
+
+	var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED || UNSUPPORTED_Y$2 || regexpUnsupportedDotAll || regexpUnsupportedNcg;
+
+	if (PATCH) {
+	  // eslint-disable-next-line max-statements -- TODO
+	  patchedExec = function exec(string) {
+	    var re = this;
+	    var state = getInternalState$5(re);
+	    var str = toString_1(string);
+	    var raw = state.raw;
+	    var result, reCopy, lastIndex, match, i, object, group;
+
+	    if (raw) {
+	      raw.lastIndex = re.lastIndex;
+	      result = patchedExec.call(raw, str);
+	      re.lastIndex = raw.lastIndex;
+	      return result;
+	    }
+
+	    var groups = state.groups;
+	    var sticky = UNSUPPORTED_Y$2 && re.sticky;
+	    var flags = regexpFlags.call(re);
+	    var source = re.source;
+	    var charsAdded = 0;
+	    var strCopy = str;
+
+	    if (sticky) {
+	      flags = flags.replace('y', '');
+	      if (flags.indexOf('g') === -1) {
+	        flags += 'g';
+	      }
+
+	      strCopy = str.slice(re.lastIndex);
+	      // Support anchored sticky behavior.
+	      if (re.lastIndex > 0 && (!re.multiline || re.multiline && str.charAt(re.lastIndex - 1) !== '\n')) {
+	        source = '(?: ' + source + ')';
+	        strCopy = ' ' + strCopy;
+	        charsAdded++;
+	      }
+	      // ^(? + rx + ) is needed, in combination with some str slicing, to
+	      // simulate the 'y' flag.
+	      reCopy = new RegExp('^(?:' + source + ')', flags);
+	    }
+
+	    if (NPCG_INCLUDED) {
+	      reCopy = new RegExp('^' + source + '$(?!\\s)', flags);
+	    }
+	    if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;
+
+	    match = nativeExec.call(sticky ? reCopy : re, strCopy);
+
+	    if (sticky) {
+	      if (match) {
+	        match.input = match.input.slice(charsAdded);
+	        match[0] = match[0].slice(charsAdded);
+	        match.index = re.lastIndex;
+	        re.lastIndex += match[0].length;
+	      } else re.lastIndex = 0;
+	    } else if (UPDATES_LAST_INDEX_WRONG && match) {
+	      re.lastIndex = re.global ? match.index + match[0].length : lastIndex;
+	    }
+	    if (NPCG_INCLUDED && match && match.length > 1) {
+	      // Fix browsers whose `exec` methods don't consistently return `undefined`
+	      // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
+	      nativeReplace.call(match[0], reCopy, function () {
+	        for (i = 1; i < arguments.length - 2; i++) {
+	          if (arguments[i] === undefined) match[i] = undefined;
+	        }
+	      });
+	    }
+
+	    if (match && groups) {
+	      match.groups = object = objectCreate(null);
+	      for (i = 0; i < groups.length; i++) {
+	        group = groups[i];
+	        object[group[0]] = match[group[1]];
+	      }
+	    }
+
+	    return match;
+	  };
+	}
+
+	var regexpExec = patchedExec;
+
+	// `RegExp.prototype.exec` method
+	// https://tc39.es/ecma262/#sec-regexp.prototype.exec
+	_export({ target: 'RegExp', proto: true, forced: /./.exec !== regexpExec }, {
+	  exec: regexpExec
+	});
+
+	// TODO: Remove from `core-js@4` since it's moved to entry points
+
+
+
+
+
+
+
+	var SPECIES$4 = wellKnownSymbol('species');
+	var RegExpPrototype$2 = RegExp.prototype;
+
+	var fixRegexpWellKnownSymbolLogic = function (KEY, exec, FORCED, SHAM) {
+	  var SYMBOL = wellKnownSymbol(KEY);
+
+	  var DELEGATES_TO_SYMBOL = !fails(function () {
+	    // String methods call symbol-named RegEp methods
+	    var O = {};
+	    O[SYMBOL] = function () { return 7; };
+	    return ''[KEY](O) != 7;
+	  });
+
+	  var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {
+	    // Symbol-named RegExp methods call .exec
+	    var execCalled = false;
+	    var re = /a/;
+
+	    if (KEY === 'split') {
+	      // We can't use real regex here since it causes deoptimization
+	      // and serious performance degradation in V8
+	      // https://github.com/zloirock/core-js/issues/306
+	      re = {};
+	      // RegExp[@@split] doesn't call the regex's exec method, but first creates
+	      // a new one. We need to return the patched regex when creating the new one.
+	      re.constructor = {};
+	      re.constructor[SPECIES$4] = function () { return re; };
+	      re.flags = '';
+	      re[SYMBOL] = /./[SYMBOL];
+	    }
+
+	    re.exec = function () { execCalled = true; return null; };
+
+	    re[SYMBOL]('');
+	    return !execCalled;
+	  });
+
+	  if (
+	    !DELEGATES_TO_SYMBOL ||
+	    !DELEGATES_TO_EXEC ||
+	    FORCED
+	  ) {
+	    var nativeRegExpMethod = /./[SYMBOL];
+	    var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {
+	      var $exec = regexp.exec;
+	      if ($exec === regexpExec || $exec === RegExpPrototype$2.exec) {
+	        if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
+	          // The native String method already delegates to @@method (this
+	          // polyfilled function), leasing to infinite recursion.
+	          // We avoid it by directly calling the native @@method method.
+	          return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
+	        }
+	        return { done: true, value: nativeMethod.call(str, regexp, arg2) };
+	      }
+	      return { done: false };
+	    });
+
+	    redefine(String.prototype, KEY, methods[0]);
+	    redefine(RegExpPrototype$2, SYMBOL, methods[1]);
+	  }
+
+	  if (SHAM) createNonEnumerableProperty(RegExpPrototype$2[SYMBOL], 'sham', true);
+	};
+
+	// `SameValue` abstract operation
+	// https://tc39.es/ecma262/#sec-samevalue
+	// eslint-disable-next-line es/no-object-is -- safe
+	var sameValue = Object.is || function is(x, y) {
+	  // eslint-disable-next-line no-self-compare -- NaN check
+	  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
+	};
+
+	// `RegExpExec` abstract operation
+	// https://tc39.es/ecma262/#sec-regexpexec
+	var regexpExecAbstract = function (R, S) {
+	  var exec = R.exec;
+	  if (isCallable(exec)) {
+	    var result = exec.call(R, S);
+	    if (result !== null) anObject(result);
+	    return result;
+	  }
+	  if (classofRaw(R) === 'RegExp') return regexpExec.call(R, S);
+	  throw TypeError('RegExp#exec called on incompatible receiver');
+	};
+
+	// @@search logic
+	fixRegexpWellKnownSymbolLogic('search', function (SEARCH, nativeSearch, maybeCallNative) {
+	  return [
+	    // `String.prototype.search` method
+	    // https://tc39.es/ecma262/#sec-string.prototype.search
+	    function search(regexp) {
+	      var O = requireObjectCoercible(this);
+	      var searcher = regexp == undefined ? undefined : getMethod(regexp, SEARCH);
+	      return searcher ? searcher.call(regexp, O) : new RegExp(regexp)[SEARCH](toString_1(O));
+	    },
+	    // `RegExp.prototype[@@search]` method
+	    // https://tc39.es/ecma262/#sec-regexp.prototype-@@search
+	    function (string) {
+	      var rx = anObject(this);
+	      var S = toString_1(string);
+	      var res = maybeCallNative(nativeSearch, rx, S);
+
+	      if (res.done) return res.value;
+
+	      var previousLastIndex = rx.lastIndex;
+	      if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;
+	      var result = regexpExecAbstract(rx, S);
+	      if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;
+	      return result === null ? -1 : result.index;
+	    }
+	  ];
+	});
+
+	var IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');
+	var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
+	var MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded';
+
+	// We can't use this feature detection in V8 since it causes
+	// deoptimization and serious performance degradation
+	// https://github.com/zloirock/core-js/issues/679
+	var IS_CONCAT_SPREADABLE_SUPPORT = engineV8Version >= 51 || !fails(function () {
+	  var array = [];
+	  array[IS_CONCAT_SPREADABLE] = false;
+	  return array.concat()[0] !== array;
+	});
+
+	var SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');
+
+	var isConcatSpreadable = function (O) {
+	  if (!isObject$1(O)) return false;
+	  var spreadable = O[IS_CONCAT_SPREADABLE];
+	  return spreadable !== undefined ? !!spreadable : isArray$3(O);
+	};
+
+	var FORCED$8 = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;
+
+	// `Array.prototype.concat` method
+	// https://tc39.es/ecma262/#sec-array.prototype.concat
+	// with adding support of @@isConcatSpreadable and @@species
+	_export({ target: 'Array', proto: true, forced: FORCED$8 }, {
+	  // eslint-disable-next-line no-unused-vars -- required for `.length`
+	  concat: function concat(arg) {
+	    var O = toObject(this);
+	    var A = arraySpeciesCreate(O, 0);
+	    var n = 0;
+	    var i, k, length, len, E;
+	    for (i = -1, length = arguments.length; i < length; i++) {
+	      E = i === -1 ? O : arguments[i];
+	      if (isConcatSpreadable(E)) {
+	        len = toLength(E.length);
+	        if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
+	        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);
+	      } else {
+	        if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
+	        createProperty(A, n++, E);
+	      }
+	    }
+	    A.length = n;
+	    return A;
+	  }
+	});
+
+	var global$2 = typeof global$1 !== "undefined" ? global$1 : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {};
+
+	var global$1 = typeof global$2 !== "undefined" ? global$2 : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {};
+
+	// based off https://github.com/defunctzombie/node-process/blob/master/browser.js
+
+	function defaultSetTimout$1() {
+	  throw new Error('setTimeout has not been defined');
+	}
+
+	function defaultClearTimeout$1() {
+	  throw new Error('clearTimeout has not been defined');
+	}
+
+	var cachedSetTimeout$1 = defaultSetTimout$1;
+	var cachedClearTimeout$1 = defaultClearTimeout$1;
+
+	if (typeof global$1.setTimeout === 'function') {
+	  cachedSetTimeout$1 = setTimeout;
+	}
+
+	if (typeof global$1.clearTimeout === 'function') {
+	  cachedClearTimeout$1 = clearTimeout;
+	}
+
+	function runTimeout$1(fun) {
+	  if (cachedSetTimeout$1 === setTimeout) {
+	    //normal enviroments in sane situations
+	    return setTimeout(fun, 0);
+	  } // if setTimeout wasn't available but was latter defined
+
+
+	  if ((cachedSetTimeout$1 === defaultSetTimout$1 || !cachedSetTimeout$1) && setTimeout) {
+	    cachedSetTimeout$1 = setTimeout;
+	    return setTimeout(fun, 0);
+	  }
+
+	  try {
+	    // when when somebody has screwed with setTimeout but no I.E. maddness
+	    return cachedSetTimeout$1(fun, 0);
+	  } catch (e) {
+	    try {
+	      // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+	      return cachedSetTimeout$1.call(null, fun, 0);
+	    } catch (e) {
+	      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+	      return cachedSetTimeout$1.call(this, fun, 0);
+	    }
+	  }
+	}
+
+	function runClearTimeout$1(marker) {
+	  if (cachedClearTimeout$1 === clearTimeout) {
+	    //normal enviroments in sane situations
+	    return clearTimeout(marker);
+	  } // if clearTimeout wasn't available but was latter defined
+
+
+	  if ((cachedClearTimeout$1 === defaultClearTimeout$1 || !cachedClearTimeout$1) && clearTimeout) {
+	    cachedClearTimeout$1 = clearTimeout;
+	    return clearTimeout(marker);
+	  }
+
+	  try {
+	    // when when somebody has screwed with setTimeout but no I.E. maddness
+	    return cachedClearTimeout$1(marker);
+	  } catch (e) {
+	    try {
+	      // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+	      return cachedClearTimeout$1.call(null, marker);
+	    } catch (e) {
+	      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+	      // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+	      return cachedClearTimeout$1.call(this, marker);
+	    }
+	  }
+	}
+
+	var queue$2 = [];
+	var draining$1 = false;
+	var currentQueue$1;
+	var queueIndex$1 = -1;
+
+	function cleanUpNextTick$1() {
+	  if (!draining$1 || !currentQueue$1) {
+	    return;
+	  }
+
+	  draining$1 = false;
+
+	  if (currentQueue$1.length) {
+	    queue$2 = currentQueue$1.concat(queue$2);
+	  } else {
+	    queueIndex$1 = -1;
+	  }
+
+	  if (queue$2.length) {
+	    drainQueue$1();
+	  }
+	}
+
+	function drainQueue$1() {
+	  if (draining$1) {
+	    return;
+	  }
+
+	  var timeout = runTimeout$1(cleanUpNextTick$1);
+	  draining$1 = true;
+	  var len = queue$2.length;
+
+	  while (len) {
+	    currentQueue$1 = queue$2;
+	    queue$2 = [];
+
+	    while (++queueIndex$1 < len) {
+	      if (currentQueue$1) {
+	        currentQueue$1[queueIndex$1].run();
+	      }
+	    }
+
+	    queueIndex$1 = -1;
+	    len = queue$2.length;
+	  }
+
+	  currentQueue$1 = null;
+	  draining$1 = false;
+	  runClearTimeout$1(timeout);
+	}
+
+	function nextTick$1(fun) {
+	  var args = new Array(arguments.length - 1);
+
+	  if (arguments.length > 1) {
+	    for (var i = 1; i < arguments.length; i++) {
+	      args[i - 1] = arguments[i];
+	    }
+	  }
+
+	  queue$2.push(new Item$1(fun, args));
+
+	  if (queue$2.length === 1 && !draining$1) {
+	    runTimeout$1(drainQueue$1);
+	  }
+	} // v8 likes predictible objects
+
+	function Item$1(fun, array) {
+	  this.fun = fun;
+	  this.array = array;
+	}
+
+	Item$1.prototype.run = function () {
+	  this.fun.apply(null, this.array);
+	};
+
+	var title$1 = 'browser';
+	var platform$1 = 'browser';
+	var browser$4 = true;
+	var env$1 = {};
+	var argv$1 = [];
+	var version$2 = ''; // empty string to avoid regexp issues
+
+	var versions$1 = {};
+	var release$1 = {};
+	var config$1 = {};
+
+	function noop$1() {}
+
+	var on$1 = noop$1;
+	var addListener$1 = noop$1;
+	var once$1 = noop$1;
+	var off$1 = noop$1;
+	var removeListener$1 = noop$1;
+	var removeAllListeners$1 = noop$1;
+	var emit$1 = noop$1;
+	function binding$1(name) {
+	  throw new Error('process.binding is not supported');
+	}
+	function cwd$1() {
+	  return '/';
+	}
+	function chdir$1(dir) {
+	  throw new Error('process.chdir is not supported');
+	}
+	function umask$1() {
+	  return 0;
+	} // from https://github.com/kumavis/browser-process-hrtime/blob/master/index.js
+
+	var performance$1 = global$1.performance || {};
+
+	var performanceNow$1 = performance$1.now || performance$1.mozNow || performance$1.msNow || performance$1.oNow || performance$1.webkitNow || function () {
+	  return new Date().getTime();
+	}; // generate timestamp or delta
+	// see http://nodejs.org/api/process.html#process_process_hrtime
+
+
+	function hrtime$1(previousTimestamp) {
+	  var clocktime = performanceNow$1.call(performance$1) * 1e-3;
+	  var seconds = Math.floor(clocktime);
+	  var nanoseconds = Math.floor(clocktime % 1 * 1e9);
+
+	  if (previousTimestamp) {
+	    seconds = seconds - previousTimestamp[0];
+	    nanoseconds = nanoseconds - previousTimestamp[1];
+
+	    if (nanoseconds < 0) {
+	      seconds--;
+	      nanoseconds += 1e9;
+	    }
+	  }
+
+	  return [seconds, nanoseconds];
+	}
+	var startTime$1 = new Date();
+	function uptime$1() {
+	  var currentTime = new Date();
+	  var dif = currentTime - startTime$1;
+	  return dif / 1000;
+	}
+	var process$4 = {
+	  nextTick: nextTick$1,
+	  title: title$1,
+	  browser: browser$4,
+	  env: env$1,
+	  argv: argv$1,
+	  version: version$2,
+	  versions: versions$1,
+	  on: on$1,
+	  addListener: addListener$1,
+	  once: once$1,
+	  off: off$1,
+	  removeListener: removeListener$1,
+	  removeAllListeners: removeAllListeners$1,
+	  emit: emit$1,
+	  binding: binding$1,
+	  cwd: cwd$1,
+	  chdir: chdir$1,
+	  umask: umask$1,
+	  hrtime: hrtime$1,
+	  platform: platform$1,
+	  release: release$1,
+	  config: config$1,
+	  uptime: uptime$1
+	};
+
+	// `Object.prototype.toString` method implementation
+	// https://tc39.es/ecma262/#sec-object.prototype.tostring
+	var objectToString$1 = toStringTagSupport ? {}.toString : function toString() {
+	  return '[object ' + classof(this) + ']';
+	};
+
+	// `Object.prototype.toString` method
+	// https://tc39.es/ecma262/#sec-object.prototype.tostring
+	if (!toStringTagSupport) {
+	  redefine(Object.prototype, 'toString', objectToString$1, { unsafe: true });
+	}
+
+	var PROPER_FUNCTION_NAME$4 = functionName.PROPER;
+
+
+
+
+
+
+	var TO_STRING = 'toString';
+	var RegExpPrototype$1 = RegExp.prototype;
+	var nativeToString = RegExpPrototype$1[TO_STRING];
+
+	var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });
+	// FF44- RegExp#toString has a wrong name
+	var INCORRECT_NAME = PROPER_FUNCTION_NAME$4 && nativeToString.name != TO_STRING;
+
+	// `RegExp.prototype.toString` method
+	// https://tc39.es/ecma262/#sec-regexp.prototype.tostring
+	if (NOT_GENERIC || INCORRECT_NAME) {
+	  redefine(RegExp.prototype, TO_STRING, function toString() {
+	    var R = anObject(this);
+	    var p = toString_1(R.source);
+	    var rf = R.flags;
+	    var f = toString_1(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype$1) ? regexpFlags.call(R) : rf);
+	    return '/' + p + '/' + f;
+	  }, { unsafe: true });
+	}
+
+	var correctPrototypeGetter = !fails(function () {
+	  function F() { /* empty */ }
+	  F.prototype.constructor = null;
+	  // eslint-disable-next-line es/no-object-getprototypeof -- required for testing
+	  return Object.getPrototypeOf(new F()) !== F.prototype;
+	});
+
+	var IE_PROTO = sharedKey('IE_PROTO');
+	var ObjectPrototype$3 = Object.prototype;
+
+	// `Object.getPrototypeOf` method
+	// https://tc39.es/ecma262/#sec-object.getprototypeof
+	// eslint-disable-next-line es/no-object-getprototypeof -- safe
+	var objectGetPrototypeOf = correctPrototypeGetter ? Object.getPrototypeOf : function (O) {
+	  var object = toObject(O);
+	  if (has$1(object, IE_PROTO)) return object[IE_PROTO];
+	  var constructor = object.constructor;
+	  if (isCallable(constructor) && object instanceof constructor) {
+	    return constructor.prototype;
+	  } return object instanceof Object ? ObjectPrototype$3 : null;
+	};
+
+	var FAILS_ON_PRIMITIVES$3 = fails(function () { objectGetPrototypeOf(1); });
+
+	// `Object.getPrototypeOf` method
+	// https://tc39.es/ecma262/#sec-object.getprototypeof
+	_export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$3, sham: !correctPrototypeGetter }, {
+	  getPrototypeOf: function getPrototypeOf(it) {
+	    return objectGetPrototypeOf(toObject(it));
+	  }
+	});
+
+	var FUNCTION_NAME_EXISTS = functionName.EXISTS;
+	var defineProperty$9 = objectDefineProperty.f;
+
+	var FunctionPrototype = Function.prototype;
+	var FunctionPrototypeToString = FunctionPrototype.toString;
+	var nameRE = /^\s*function ([^ (]*)/;
+	var NAME$1 = 'name';
+
+	// Function instances `.name` property
+	// https://tc39.es/ecma262/#sec-function-instances-name
+	if (descriptors && !FUNCTION_NAME_EXISTS) {
+	  defineProperty$9(FunctionPrototype, NAME$1, {
+	    configurable: true,
+	    get: function () {
+	      try {
+	        return FunctionPrototypeToString.call(this).match(nameRE)[1];
+	      } catch (error) {
+	        return '';
+	      }
+	    }
+	  });
+	}
+
+	// `Reflect.ownKeys` method
+	// https://tc39.es/ecma262/#sec-reflect.ownkeys
+	_export({ target: 'Reflect', stat: true }, {
+	  ownKeys: ownKeys$1
+	});
+
+	var domain; // This constructor is used to store event handlers. Instantiating this is
+	// faster than explicitly calling `Object.create(null)` to get a "clean" empty
+	// object (tested with v8 v4.9).
+
+	function EventHandlers() {}
+
+	EventHandlers.prototype = Object.create(null);
+
+	function EventEmitter$2() {
+	  EventEmitter$2.init.call(this);
+	}
+	// require('events') === require('events').EventEmitter
+
+	EventEmitter$2.EventEmitter = EventEmitter$2;
+	EventEmitter$2.usingDomains = false;
+	EventEmitter$2.prototype.domain = undefined;
+	EventEmitter$2.prototype._events = undefined;
+	EventEmitter$2.prototype._maxListeners = undefined; // By default EventEmitters will print a warning if more than 10 listeners are
+	// added to it. This is a useful default which helps finding memory leaks.
+
+	EventEmitter$2.defaultMaxListeners = 10;
+
+	EventEmitter$2.init = function () {
+	  this.domain = null;
+
+	  if (EventEmitter$2.usingDomains) {
+	    // if there is an active domain, then attach to it.
+	    if (domain.active ) ;
+	  }
+
+	  if (!this._events || this._events === Object.getPrototypeOf(this)._events) {
+	    this._events = new EventHandlers();
+	    this._eventsCount = 0;
+	  }
+
+	  this._maxListeners = this._maxListeners || undefined;
+	}; // Obviously not all Emitters should be limited to 10. This function allows
+	// that to be increased. Set to zero for unlimited.
+
+
+	EventEmitter$2.prototype.setMaxListeners = function setMaxListeners(n) {
+	  if (typeof n !== 'number' || n < 0 || isNaN(n)) throw new TypeError('"n" argument must be a positive number');
+	  this._maxListeners = n;
+	  return this;
+	};
+
+	function $getMaxListeners(that) {
+	  if (that._maxListeners === undefined) return EventEmitter$2.defaultMaxListeners;
+	  return that._maxListeners;
+	}
+
+	EventEmitter$2.prototype.getMaxListeners = function getMaxListeners() {
+	  return $getMaxListeners(this);
+	}; // These standalone emit* functions are used to optimize calling of event
+	// handlers for fast cases because emit() itself often has a variable number of
+	// arguments and can be deoptimized because of that. These functions always have
+	// the same number of arguments and thus do not get deoptimized, so the code
+	// inside them can execute faster.
+
+
+	function emitNone(handler, isFn, self) {
+	  if (isFn) handler.call(self);else {
+	    var len = handler.length;
+	    var listeners = arrayClone(handler, len);
+
+	    for (var i = 0; i < len; ++i) {
+	      listeners[i].call(self);
+	    }
+	  }
+	}
+
+	function emitOne(handler, isFn, self, arg1) {
+	  if (isFn) handler.call(self, arg1);else {
+	    var len = handler.length;
+	    var listeners = arrayClone(handler, len);
+
+	    for (var i = 0; i < len; ++i) {
+	      listeners[i].call(self, arg1);
+	    }
+	  }
+	}
+
+	function emitTwo(handler, isFn, self, arg1, arg2) {
+	  if (isFn) handler.call(self, arg1, arg2);else {
+	    var len = handler.length;
+	    var listeners = arrayClone(handler, len);
+
+	    for (var i = 0; i < len; ++i) {
+	      listeners[i].call(self, arg1, arg2);
+	    }
+	  }
+	}
+
+	function emitThree(handler, isFn, self, arg1, arg2, arg3) {
+	  if (isFn) handler.call(self, arg1, arg2, arg3);else {
+	    var len = handler.length;
+	    var listeners = arrayClone(handler, len);
+
+	    for (var i = 0; i < len; ++i) {
+	      listeners[i].call(self, arg1, arg2, arg3);
+	    }
+	  }
+	}
+
+	function emitMany(handler, isFn, self, args) {
+	  if (isFn) handler.apply(self, args);else {
+	    var len = handler.length;
+	    var listeners = arrayClone(handler, len);
+
+	    for (var i = 0; i < len; ++i) {
+	      listeners[i].apply(self, args);
+	    }
+	  }
+	}
+
+	EventEmitter$2.prototype.emit = function emit(type) {
+	  var er, handler, len, args, i, events, domain;
+	  var doError = type === 'error';
+	  events = this._events;
+	  if (events) doError = doError && events.error == null;else if (!doError) return false;
+	  domain = this.domain; // If there is no 'error' event listener then throw.
+
+	  if (doError) {
+	    er = arguments[1];
+
+	    if (domain) {
+	      if (!er) er = new Error('Uncaught, unspecified "error" event');
+	      er.domainEmitter = this;
+	      er.domain = domain;
+	      er.domainThrown = false;
+	      domain.emit('error', er);
+	    } else if (er instanceof Error) {
+	      throw er; // Unhandled 'error' event
+	    } else {
+	      // At least give some kind of context to the user
+	      var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+	      err.context = er;
+	      throw err;
+	    }
+
+	    return false;
+	  }
+
+	  handler = events[type];
+	  if (!handler) return false;
+	  var isFn = typeof handler === 'function';
+	  len = arguments.length;
+
+	  switch (len) {
+	    // fast cases
+	    case 1:
+	      emitNone(handler, isFn, this);
+	      break;
+
+	    case 2:
+	      emitOne(handler, isFn, this, arguments[1]);
+	      break;
+
+	    case 3:
+	      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
+	      break;
+
+	    case 4:
+	      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
+	      break;
+	    // slower
+
+	    default:
+	      args = new Array(len - 1);
+
+	      for (i = 1; i < len; i++) {
+	        args[i - 1] = arguments[i];
+	      }
+
+	      emitMany(handler, isFn, this, args);
+	  }
+	  return true;
+	};
+
+	function _addListener(target, type, listener, prepend) {
+	  var m;
+	  var events;
+	  var existing;
+	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
+	  events = target._events;
+
+	  if (!events) {
+	    events = target._events = new EventHandlers();
+	    target._eventsCount = 0;
+	  } else {
+	    // To avoid recursion in the case that type === "newListener"! Before
+	    // adding it to the listeners, first emit "newListener".
+	    if (events.newListener) {
+	      target.emit('newListener', type, listener.listener ? listener.listener : listener); // Re-assign `events` because a newListener handler could have caused the
+	      // this._events to be assigned to a new object
+
+	      events = target._events;
+	    }
+
+	    existing = events[type];
+	  }
+
+	  if (!existing) {
+	    // Optimize the case of one listener. Don't need the extra array object.
+	    existing = events[type] = listener;
+	    ++target._eventsCount;
+	  } else {
+	    if (typeof existing === 'function') {
+	      // Adding the second element, need to change to array.
+	      existing = events[type] = prepend ? [listener, existing] : [existing, listener];
+	    } else {
+	      // If we've already got an array, just append.
+	      if (prepend) {
+	        existing.unshift(listener);
+	      } else {
+	        existing.push(listener);
+	      }
+	    } // Check for listener leak
+
+
+	    if (!existing.warned) {
+	      m = $getMaxListeners(target);
+
+	      if (m && m > 0 && existing.length > m) {
+	        existing.warned = true;
+	        var w = new Error('Possible EventEmitter memory leak detected. ' + existing.length + ' ' + type + ' listeners added. ' + 'Use emitter.setMaxListeners() to increase limit');
+	        w.name = 'MaxListenersExceededWarning';
+	        w.emitter = target;
+	        w.type = type;
+	        w.count = existing.length;
+	        emitWarning$1(w);
+	      }
+	    }
+	  }
+
+	  return target;
+	}
+
+	function emitWarning$1(e) {
+	  typeof console.warn === 'function' ? console.warn(e) : console.log(e);
+	}
+
+	EventEmitter$2.prototype.addListener = function addListener(type, listener) {
+	  return _addListener(this, type, listener, false);
+	};
+
+	EventEmitter$2.prototype.on = EventEmitter$2.prototype.addListener;
+
+	EventEmitter$2.prototype.prependListener = function prependListener(type, listener) {
+	  return _addListener(this, type, listener, true);
+	};
+
+	function _onceWrap(target, type, listener) {
+	  var fired = false;
+
+	  function g() {
+	    target.removeListener(type, g);
+
+	    if (!fired) {
+	      fired = true;
+	      listener.apply(target, arguments);
+	    }
+	  }
+
+	  g.listener = listener;
+	  return g;
+	}
+
+	EventEmitter$2.prototype.once = function once(type, listener) {
+	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
+	  this.on(type, _onceWrap(this, type, listener));
+	  return this;
+	};
+
+	EventEmitter$2.prototype.prependOnceListener = function prependOnceListener(type, listener) {
+	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
+	  this.prependListener(type, _onceWrap(this, type, listener));
+	  return this;
+	}; // emits a 'removeListener' event iff the listener was removed
+
+
+	EventEmitter$2.prototype.removeListener = function removeListener(type, listener) {
+	  var list, events, position, i, originalListener;
+	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
+	  events = this._events;
+	  if (!events) return this;
+	  list = events[type];
+	  if (!list) return this;
+
+	  if (list === listener || list.listener && list.listener === listener) {
+	    if (--this._eventsCount === 0) this._events = new EventHandlers();else {
+	      delete events[type];
+	      if (events.removeListener) this.emit('removeListener', type, list.listener || listener);
+	    }
+	  } else if (typeof list !== 'function') {
+	    position = -1;
+
+	    for (i = list.length; i-- > 0;) {
+	      if (list[i] === listener || list[i].listener && list[i].listener === listener) {
+	        originalListener = list[i].listener;
+	        position = i;
+	        break;
+	      }
+	    }
+
+	    if (position < 0) return this;
+
+	    if (list.length === 1) {
+	      list[0] = undefined;
+
+	      if (--this._eventsCount === 0) {
+	        this._events = new EventHandlers();
+	        return this;
+	      } else {
+	        delete events[type];
+	      }
+	    } else {
+	      spliceOne(list, position);
+	    }
+
+	    if (events.removeListener) this.emit('removeListener', type, originalListener || listener);
+	  }
+
+	  return this;
+	};
+
+	EventEmitter$2.prototype.removeAllListeners = function removeAllListeners(type) {
+	  var listeners, events;
+	  events = this._events;
+	  if (!events) return this; // not listening for removeListener, no need to emit
+
+	  if (!events.removeListener) {
+	    if (arguments.length === 0) {
+	      this._events = new EventHandlers();
+	      this._eventsCount = 0;
+	    } else if (events[type]) {
+	      if (--this._eventsCount === 0) this._events = new EventHandlers();else delete events[type];
+	    }
+
+	    return this;
+	  } // emit removeListener for all listeners on all events
+
+
+	  if (arguments.length === 0) {
+	    var keys = Object.keys(events);
+
+	    for (var i = 0, key; i < keys.length; ++i) {
+	      key = keys[i];
+	      if (key === 'removeListener') continue;
+	      this.removeAllListeners(key);
+	    }
+
+	    this.removeAllListeners('removeListener');
+	    this._events = new EventHandlers();
+	    this._eventsCount = 0;
+	    return this;
+	  }
+
+	  listeners = events[type];
+
+	  if (typeof listeners === 'function') {
+	    this.removeListener(type, listeners);
+	  } else if (listeners) {
+	    // LIFO order
+	    do {
+	      this.removeListener(type, listeners[listeners.length - 1]);
+	    } while (listeners[0]);
+	  }
+
+	  return this;
+	};
+
+	EventEmitter$2.prototype.listeners = function listeners(type) {
+	  var evlistener;
+	  var ret;
+	  var events = this._events;
+	  if (!events) ret = [];else {
+	    evlistener = events[type];
+	    if (!evlistener) ret = [];else if (typeof evlistener === 'function') ret = [evlistener.listener || evlistener];else ret = unwrapListeners(evlistener);
+	  }
+	  return ret;
+	};
+
+	EventEmitter$2.listenerCount = function (emitter, type) {
+	  if (typeof emitter.listenerCount === 'function') {
+	    return emitter.listenerCount(type);
+	  } else {
+	    return listenerCount$1.call(emitter, type);
+	  }
+	};
+
+	EventEmitter$2.prototype.listenerCount = listenerCount$1;
+
+	function listenerCount$1(type) {
+	  var events = this._events;
+
+	  if (events) {
+	    var evlistener = events[type];
+
+	    if (typeof evlistener === 'function') {
+	      return 1;
+	    } else if (evlistener) {
+	      return evlistener.length;
+	    }
+	  }
+
+	  return 0;
+	}
+
+	EventEmitter$2.prototype.eventNames = function eventNames() {
+	  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
+	}; // About 1.5x faster than the two-arg version of Array#splice().
+
+
+	function spliceOne(list, index) {
+	  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1) {
+	    list[i] = list[k];
+	  }
+
+	  list.pop();
+	}
+
+	function arrayClone(arr, i) {
+	  var copy = new Array(i);
+
+	  while (i--) {
+	    copy[i] = arr[i];
+	  }
+
+	  return copy;
+	}
+
+	function unwrapListeners(arr) {
+	  var ret = new Array(arr.length);
+
+	  for (var i = 0; i < ret.length; ++i) {
+	    ret[i] = arr[i].listener || arr[i];
+	  }
+
+	  return ret;
+	}
+
+	function ownKeys(object, enumerableOnly) {
+	  var keys = Object.keys(object);
+
+	  if (Object.getOwnPropertySymbols) {
+	    var symbols = Object.getOwnPropertySymbols(object);
+
+	    if (enumerableOnly) {
+	      symbols = symbols.filter(function (sym) {
+	        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
+	      });
+	    }
+
+	    keys.push.apply(keys, symbols);
+	  }
+
+	  return keys;
+	}
+
+	function _objectSpread2(target) {
+	  for (var i = 1; i < arguments.length; i++) {
+	    var source = arguments[i] != null ? arguments[i] : {};
+
+	    if (i % 2) {
+	      ownKeys(Object(source), true).forEach(function (key) {
+	        _defineProperty(target, key, source[key]);
+	      });
+	    } else if (Object.getOwnPropertyDescriptors) {
+	      Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
+	    } else {
+	      ownKeys(Object(source)).forEach(function (key) {
+	        Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
+	      });
+	    }
+	  }
+
+	  return target;
+	}
+
+	function _typeof(obj) {
+	  "@babel/helpers - typeof";
+
+	  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+	    _typeof = function (obj) {
+	      return typeof obj;
+	    };
+	  } else {
+	    _typeof = function (obj) {
+	      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+	    };
+	  }
+
+	  return _typeof(obj);
+	}
+
+	function _asyncIterator(iterable) {
+	  var method;
+
+	  if (typeof Symbol !== "undefined") {
+	    if (Symbol.asyncIterator) method = iterable[Symbol.asyncIterator];
+	    if (method == null && Symbol.iterator) method = iterable[Symbol.iterator];
+	  }
+
+	  if (method == null) method = iterable["@@asyncIterator"];
+	  if (method == null) method = iterable["@@iterator"];
+	  if (method == null) throw new TypeError("Object is not async iterable");
+	  return method.call(iterable);
+	}
+
+	function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+	  try {
+	    var info = gen[key](arg);
+	    var value = info.value;
+	  } catch (error) {
+	    reject(error);
+	    return;
+	  }
+
+	  if (info.done) {
+	    resolve(value);
+	  } else {
+	    Promise.resolve(value).then(_next, _throw);
+	  }
+	}
+
+	function _asyncToGenerator(fn) {
+	  return function () {
+	    var self = this,
+	        args = arguments;
+	    return new Promise(function (resolve, reject) {
+	      var gen = fn.apply(self, args);
+
+	      function _next(value) {
+	        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+	      }
+
+	      function _throw(err) {
+	        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+	      }
+
+	      _next(undefined);
+	    });
+	  };
+	}
+
+	function _classCallCheck(instance, Constructor) {
+	  if (!(instance instanceof Constructor)) {
+	    throw new TypeError("Cannot call a class as a function");
+	  }
+	}
+
+	function _defineProperty(obj, key, value) {
+	  if (key in obj) {
+	    Object.defineProperty(obj, key, {
+	      value: value,
+	      enumerable: true,
+	      configurable: true,
+	      writable: true
+	    });
+	  } else {
+	    obj[key] = value;
+	  }
+
+	  return obj;
+	}
+
+	function _inherits(subClass, superClass) {
+	  if (typeof superClass !== "function" && superClass !== null) {
+	    throw new TypeError("Super expression must either be null or a function");
+	  }
+
+	  subClass.prototype = Object.create(superClass && superClass.prototype, {
+	    constructor: {
+	      value: subClass,
+	      writable: true,
+	      configurable: true
+	    }
+	  });
+	  if (superClass) _setPrototypeOf(subClass, superClass);
+	}
+
+	function _getPrototypeOf(o) {
+	  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
+	    return o.__proto__ || Object.getPrototypeOf(o);
+	  };
+	  return _getPrototypeOf(o);
+	}
+
+	function _setPrototypeOf(o, p) {
+	  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
+	    o.__proto__ = p;
+	    return o;
+	  };
+
+	  return _setPrototypeOf(o, p);
+	}
+
+	function _isNativeReflectConstruct() {
+	  if (typeof Reflect === "undefined" || !Reflect.construct) return false;
+	  if (Reflect.construct.sham) return false;
+	  if (typeof Proxy === "function") return true;
+
+	  try {
+	    Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+	    return true;
+	  } catch (e) {
+	    return false;
+	  }
+	}
+
+	function _assertThisInitialized(self) {
+	  if (self === void 0) {
+	    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+	  }
+
+	  return self;
+	}
+
+	function _possibleConstructorReturn(self, call) {
+	  if (call && (typeof call === "object" || typeof call === "function")) {
+	    return call;
+	  } else if (call !== void 0) {
+	    throw new TypeError("Derived constructors may only return object or undefined");
+	  }
+
+	  return _assertThisInitialized(self);
+	}
+
+	function _createSuper(Derived) {
+	  var hasNativeReflectConstruct = _isNativeReflectConstruct();
+
+	  return function _createSuperInternal() {
+	    var Super = _getPrototypeOf(Derived),
+	        result;
+
+	    if (hasNativeReflectConstruct) {
+	      var NewTarget = _getPrototypeOf(this).constructor;
+
+	      result = Reflect.construct(Super, arguments, NewTarget);
+	    } else {
+	      result = Super.apply(this, arguments);
+	    }
+
+	    return _possibleConstructorReturn(this, result);
+	  };
+	}
+
+	function _toConsumableArray(arr) {
+	  return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
+	}
+
+	function _arrayWithoutHoles(arr) {
+	  if (Array.isArray(arr)) return _arrayLikeToArray(arr);
+	}
+
+	function _iterableToArray(iter) {
+	  if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
+	}
+
+	function _unsupportedIterableToArray(o, minLen) {
+	  if (!o) return;
+	  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+	  var n = Object.prototype.toString.call(o).slice(8, -1);
+	  if (n === "Object" && o.constructor) n = o.constructor.name;
+	  if (n === "Map" || n === "Set") return Array.from(o);
+	  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
+	}
+
+	function _arrayLikeToArray(arr, len) {
+	  if (len == null || len > arr.length) len = arr.length;
+
+	  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+
+	  return arr2;
+	}
+
+	function _nonIterableSpread() {
+	  throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+	}
+
+	var nativeJoin = [].join;
+
+	var ES3_STRINGS = indexedObject != Object;
+	var STRICT_METHOD$2 = arrayMethodIsStrict('join', ',');
+
+	// `Array.prototype.join` method
+	// https://tc39.es/ecma262/#sec-array.prototype.join
+	_export({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD$2 }, {
+	  join: function join(separator) {
+	    return nativeJoin.call(toIndexedObject(this), separator === undefined ? ',' : separator);
+	  }
+	});
+
+	// `String.prototype.codePointAt` methods implementation
+	var createMethod$3 = function (CONVERT_TO_STRING) {
+	  return function ($this, pos) {
+	    var S = toString_1(requireObjectCoercible($this));
+	    var position = toInteger(pos);
+	    var size = S.length;
+	    var first, second;
+	    if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
+	    first = S.charCodeAt(position);
+	    return first < 0xD800 || first > 0xDBFF || position + 1 === size
+	      || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF
+	        ? CONVERT_TO_STRING ? S.charAt(position) : first
+	        : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
+	  };
+	};
+
+	var stringMultibyte = {
+	  // `String.prototype.codePointAt` method
+	  // https://tc39.es/ecma262/#sec-string.prototype.codepointat
+	  codeAt: createMethod$3(false),
+	  // `String.prototype.at` method
+	  // https://github.com/mathiasbynens/String.prototype.at
+	  charAt: createMethod$3(true)
+	};
+
+	var charAt$1 = stringMultibyte.charAt;
+
+	// `AdvanceStringIndex` abstract operation
+	// https://tc39.es/ecma262/#sec-advancestringindex
+	var advanceStringIndex = function (S, index, unicode) {
+	  return index + (unicode ? charAt$1(S, index).length : 1);
+	};
+
+	var floor$5 = Math.floor;
+	var replace = ''.replace;
+	var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d{1,2}|<[^>]*>)/g;
+	var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d{1,2})/g;
+
+	// `GetSubstitution` abstract operation
+	// https://tc39.es/ecma262/#sec-getsubstitution
+	var getSubstitution = function (matched, str, position, captures, namedCaptures, replacement) {
+	  var tailPos = position + matched.length;
+	  var m = captures.length;
+	  var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
+	  if (namedCaptures !== undefined) {
+	    namedCaptures = toObject(namedCaptures);
+	    symbols = SUBSTITUTION_SYMBOLS;
+	  }
+	  return replace.call(replacement, symbols, function (match, ch) {
+	    var capture;
+	    switch (ch.charAt(0)) {
+	      case '$': return '$';
+	      case '&': return matched;
+	      case '`': return str.slice(0, position);
+	      case "'": return str.slice(tailPos);
+	      case '<':
+	        capture = namedCaptures[ch.slice(1, -1)];
+	        break;
+	      default: // \d\d?
+	        var n = +ch;
+	        if (n === 0) return match;
+	        if (n > m) {
+	          var f = floor$5(n / 10);
+	          if (f === 0) return match;
+	          if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
+	          return match;
+	        }
+	        capture = captures[n - 1];
+	    }
+	    return capture === undefined ? '' : capture;
+	  });
+	};
+
+	var REPLACE = wellKnownSymbol('replace');
+	var max$1 = Math.max;
+	var min$4 = Math.min;
+
+	var maybeToString = function (it) {
+	  return it === undefined ? it : String(it);
+	};
+
+	// IE <= 11 replaces $0 with the whole match, as if it was $&
+	// https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
+	var REPLACE_KEEPS_$0 = (function () {
+	  // eslint-disable-next-line regexp/prefer-escape-replacement-dollar-char -- required for testing
+	  return 'a'.replace(/./, '$0') === '$0';
+	})();
+
+	// Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
+	var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
+	  if (/./[REPLACE]) {
+	    return /./[REPLACE]('a', '$0') === '';
+	  }
+	  return false;
+	})();
+
+	var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
+	  var re = /./;
+	  re.exec = function () {
+	    var result = [];
+	    result.groups = { a: '7' };
+	    return result;
+	  };
+	  // eslint-disable-next-line regexp/no-useless-dollar-replacements -- false positive
+	  return ''.replace(re, '$<a>') !== '7';
+	});
+
+	// @@replace logic
+	fixRegexpWellKnownSymbolLogic('replace', function (_, nativeReplace, maybeCallNative) {
+	  var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';
+
+	  return [
+	    // `String.prototype.replace` method
+	    // https://tc39.es/ecma262/#sec-string.prototype.replace
+	    function replace(searchValue, replaceValue) {
+	      var O = requireObjectCoercible(this);
+	      var replacer = searchValue == undefined ? undefined : getMethod(searchValue, REPLACE);
+	      return replacer
+	        ? replacer.call(searchValue, O, replaceValue)
+	        : nativeReplace.call(toString_1(O), searchValue, replaceValue);
+	    },
+	    // `RegExp.prototype[@@replace]` method
+	    // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
+	    function (string, replaceValue) {
+	      var rx = anObject(this);
+	      var S = toString_1(string);
+
+	      if (
+	        typeof replaceValue === 'string' &&
+	        replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1 &&
+	        replaceValue.indexOf('$<') === -1
+	      ) {
+	        var res = maybeCallNative(nativeReplace, rx, S, replaceValue);
+	        if (res.done) return res.value;
+	      }
+
+	      var functionalReplace = isCallable(replaceValue);
+	      if (!functionalReplace) replaceValue = toString_1(replaceValue);
+
+	      var global = rx.global;
+	      if (global) {
+	        var fullUnicode = rx.unicode;
+	        rx.lastIndex = 0;
+	      }
+	      var results = [];
+	      while (true) {
+	        var result = regexpExecAbstract(rx, S);
+	        if (result === null) break;
+
+	        results.push(result);
+	        if (!global) break;
+
+	        var matchStr = toString_1(result[0]);
+	        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
+	      }
+
+	      var accumulatedResult = '';
+	      var nextSourcePosition = 0;
+	      for (var i = 0; i < results.length; i++) {
+	        result = results[i];
+
+	        var matched = toString_1(result[0]);
+	        var position = max$1(min$4(toInteger(result.index), S.length), 0);
+	        var captures = [];
+	        // NOTE: This is equivalent to
+	        //   captures = result.slice(1).map(maybeToString)
+	        // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
+	        // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
+	        // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
+	        for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
+	        var namedCaptures = result.groups;
+	        if (functionalReplace) {
+	          var replacerArgs = [matched].concat(captures, position, S);
+	          if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
+	          var replacement = toString_1(replaceValue.apply(undefined, replacerArgs));
+	        } else {
+	          replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
+	        }
+	        if (position >= nextSourcePosition) {
+	          accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
+	          nextSourcePosition = position + matched.length;
+	        }
+	      }
+	      return accumulatedResult + S.slice(nextSourcePosition);
+	    }
+	  ];
+	}, !REPLACE_SUPPORTS_NAMED_GROUPS || !REPLACE_KEEPS_$0 || REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE);
+
+	var aPossiblePrototype = function (argument) {
+	  if (typeof argument === 'object' || isCallable(argument)) return argument;
+	  throw TypeError("Can't set " + String(argument) + ' as a prototype');
+	};
+
+	/* eslint-disable no-proto -- safe */
+
+
+
+	// `Object.setPrototypeOf` method
+	// https://tc39.es/ecma262/#sec-object.setprototypeof
+	// Works with __proto__ only. Old v8 can't work with null proto objects.
+	// eslint-disable-next-line es/no-object-setprototypeof -- safe
+	var objectSetPrototypeOf = Object.setPrototypeOf || ('__proto__' in {} ? function () {
+	  var CORRECT_SETTER = false;
+	  var test = {};
+	  var setter;
+	  try {
+	    // eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
+	    setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;
+	    setter.call(test, []);
+	    CORRECT_SETTER = test instanceof Array;
+	  } catch (error) { /* empty */ }
+	  return function setPrototypeOf(O, proto) {
+	    anObject(O);
+	    aPossiblePrototype(proto);
+	    if (CORRECT_SETTER) setter.call(O, proto);
+	    else O.__proto__ = proto;
+	    return O;
+	  };
+	}() : undefined);
+
+	// makes subclassing work correct for wrapped built-ins
+	var inheritIfRequired = function ($this, dummy, Wrapper) {
+	  var NewTarget, NewTargetPrototype;
+	  if (
+	    // it can work only with native `setPrototypeOf`
+	    objectSetPrototypeOf &&
+	    // we haven't completely correct pre-ES6 way for getting `new.target`, so use this
+	    isCallable(NewTarget = dummy.constructor) &&
+	    NewTarget !== Wrapper &&
+	    isObject$1(NewTargetPrototype = NewTarget.prototype) &&
+	    NewTargetPrototype !== Wrapper.prototype
+	  ) objectSetPrototypeOf($this, NewTargetPrototype);
+	  return $this;
+	};
+
+	// a string of all valid unicode whitespaces
+	var whitespaces = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002' +
+	  '\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
+
+	var whitespace = '[' + whitespaces + ']';
+	var ltrim = RegExp('^' + whitespace + whitespace + '*');
+	var rtrim = RegExp(whitespace + whitespace + '*$');
+
+	// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
+	var createMethod$2 = function (TYPE) {
+	  return function ($this) {
+	    var string = toString_1(requireObjectCoercible($this));
+	    if (TYPE & 1) string = string.replace(ltrim, '');
+	    if (TYPE & 2) string = string.replace(rtrim, '');
+	    return string;
+	  };
+	};
+
+	var stringTrim = {
+	  // `String.prototype.{ trimLeft, trimStart }` methods
+	  // https://tc39.es/ecma262/#sec-string.prototype.trimstart
+	  start: createMethod$2(1),
+	  // `String.prototype.{ trimRight, trimEnd }` methods
+	  // https://tc39.es/ecma262/#sec-string.prototype.trimend
+	  end: createMethod$2(2),
+	  // `String.prototype.trim` method
+	  // https://tc39.es/ecma262/#sec-string.prototype.trim
+	  trim: createMethod$2(3)
+	};
+
+	var getOwnPropertyNames$3 = objectGetOwnPropertyNames.f;
+	var getOwnPropertyDescriptor$1 = objectGetOwnPropertyDescriptor.f;
+	var defineProperty$8 = objectDefineProperty.f;
+	var trim = stringTrim.trim;
+
+	var NUMBER = 'Number';
+	var NativeNumber = global_1[NUMBER];
+	var NumberPrototype = NativeNumber.prototype;
+
+	// Opera ~12 has broken Object#toString
+	var BROKEN_CLASSOF = classofRaw(objectCreate(NumberPrototype)) == NUMBER;
+
+	// `ToNumber` abstract operation
+	// https://tc39.es/ecma262/#sec-tonumber
+	var toNumber = function (argument) {
+	  if (isSymbol$1(argument)) throw TypeError('Cannot convert a Symbol value to a number');
+	  var it = toPrimitive(argument, 'number');
+	  var first, third, radix, maxCode, digits, length, index, code;
+	  if (typeof it == 'string' && it.length > 2) {
+	    it = trim(it);
+	    first = it.charCodeAt(0);
+	    if (first === 43 || first === 45) {
+	      third = it.charCodeAt(2);
+	      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
+	    } else if (first === 48) {
+	      switch (it.charCodeAt(1)) {
+	        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i
+	        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i
+	        default: return +it;
+	      }
+	      digits = it.slice(2);
+	      length = digits.length;
+	      for (index = 0; index < length; index++) {
+	        code = digits.charCodeAt(index);
+	        // parseInt parses a string to a first unavailable symbol
+	        // but ToNumber should return NaN if a string contains unavailable symbols
+	        if (code < 48 || code > maxCode) return NaN;
+	      } return parseInt(digits, radix);
+	    }
+	  } return +it;
+	};
+
+	// `Number` constructor
+	// https://tc39.es/ecma262/#sec-number-constructor
+	if (isForced_1(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {
+	  var NumberWrapper = function Number(value) {
+	    var it = arguments.length < 1 ? 0 : value;
+	    var dummy = this;
+	    return dummy instanceof NumberWrapper
+	      // check on 1..constructor(foo) case
+	      && (BROKEN_CLASSOF ? fails(function () { NumberPrototype.valueOf.call(dummy); }) : classofRaw(dummy) != NUMBER)
+	        ? inheritIfRequired(new NativeNumber(toNumber(it)), dummy, NumberWrapper) : toNumber(it);
+	  };
+	  for (var keys$3 = descriptors ? getOwnPropertyNames$3(NativeNumber) : (
+	    // ES3:
+	    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
+	    // ES2015 (in case, if modules with ES2015 Number statics required before):
+	    'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
+	    'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger,' +
+	    // ESNext
+	    'fromString,range'
+	  ).split(','), j$1 = 0, key$1; keys$3.length > j$1; j$1++) {
+	    if (has$1(NativeNumber, key$1 = keys$3[j$1]) && !has$1(NumberWrapper, key$1)) {
+	      defineProperty$8(NumberWrapper, key$1, getOwnPropertyDescriptor$1(NativeNumber, key$1));
+	    }
+	  }
+	  NumberWrapper.prototype = NumberPrototype;
+	  NumberPrototype.constructor = NumberWrapper;
+	  redefine(global_1, NUMBER, NumberWrapper);
+	}
+
+	var MATCH$2 = wellKnownSymbol('match');
+
+	// `IsRegExp` abstract operation
+	// https://tc39.es/ecma262/#sec-isregexp
+	var isRegexp = function (it) {
+	  var isRegExp;
+	  return isObject$1(it) && ((isRegExp = it[MATCH$2]) !== undefined ? !!isRegExp : classofRaw(it) == 'RegExp');
+	};
+
+	var SPECIES$3 = wellKnownSymbol('species');
+
+	var setSpecies = function (CONSTRUCTOR_NAME) {
+	  var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
+	  var defineProperty = objectDefineProperty.f;
+
+	  if (descriptors && Constructor && !Constructor[SPECIES$3]) {
+	    defineProperty(Constructor, SPECIES$3, {
+	      configurable: true,
+	      get: function () { return this; }
+	    });
+	  }
+	};
+
+	var defineProperty$7 = objectDefineProperty.f;
+	var getOwnPropertyNames$2 = objectGetOwnPropertyNames.f;
+
+
+
+
+
+
+
+	var enforceInternalState = internalState.enforce;
+
+
+
+
+
+	var MATCH$1 = wellKnownSymbol('match');
+	var NativeRegExp = global_1.RegExp;
+	var RegExpPrototype = NativeRegExp.prototype;
+	// TODO: Use only propper RegExpIdentifierName
+	var IS_NCG = /^\?<[^\s\d!#%&*+<=>@^][^\s!#%&*+<=>@^]*>/;
+	var re1 = /a/g;
+	var re2 = /a/g;
+
+	// "new" should create a new object, old webkit bug
+	var CORRECT_NEW = new NativeRegExp(re1) !== re1;
+
+	var UNSUPPORTED_Y$1 = regexpStickyHelpers.UNSUPPORTED_Y;
+
+	var BASE_FORCED = descriptors &&
+	  (!CORRECT_NEW || UNSUPPORTED_Y$1 || regexpUnsupportedDotAll || regexpUnsupportedNcg || fails(function () {
+	    re2[MATCH$1] = false;
+	    // RegExp constructor can alter flags and IsRegExp works correct with @@match
+	    return NativeRegExp(re1) != re1 || NativeRegExp(re2) == re2 || NativeRegExp(re1, 'i') != '/a/i';
+	  }));
+
+	var handleDotAll = function (string) {
+	  var length = string.length;
+	  var index = 0;
+	  var result = '';
+	  var brackets = false;
+	  var chr;
+	  for (; index <= length; index++) {
+	    chr = string.charAt(index);
+	    if (chr === '\\') {
+	      result += chr + string.charAt(++index);
+	      continue;
+	    }
+	    if (!brackets && chr === '.') {
+	      result += '[\\s\\S]';
+	    } else {
+	      if (chr === '[') {
+	        brackets = true;
+	      } else if (chr === ']') {
+	        brackets = false;
+	      } result += chr;
+	    }
+	  } return result;
+	};
+
+	var handleNCG = function (string) {
+	  var length = string.length;
+	  var index = 0;
+	  var result = '';
+	  var named = [];
+	  var names = {};
+	  var brackets = false;
+	  var ncg = false;
+	  var groupid = 0;
+	  var groupname = '';
+	  var chr;
+	  for (; index <= length; index++) {
+	    chr = string.charAt(index);
+	    if (chr === '\\') {
+	      chr = chr + string.charAt(++index);
+	    } else if (chr === ']') {
+	      brackets = false;
+	    } else if (!brackets) switch (true) {
+	      case chr === '[':
+	        brackets = true;
+	        break;
+	      case chr === '(':
+	        if (IS_NCG.test(string.slice(index + 1))) {
+	          index += 2;
+	          ncg = true;
+	        }
+	        result += chr;
+	        groupid++;
+	        continue;
+	      case chr === '>' && ncg:
+	        if (groupname === '' || has$1(names, groupname)) {
+	          throw new SyntaxError('Invalid capture group name');
+	        }
+	        names[groupname] = true;
+	        named.push([groupname, groupid]);
+	        ncg = false;
+	        groupname = '';
+	        continue;
+	    }
+	    if (ncg) groupname += chr;
+	    else result += chr;
+	  } return [result, named];
+	};
+
+	// `RegExp` constructor
+	// https://tc39.es/ecma262/#sec-regexp-constructor
+	if (isForced_1('RegExp', BASE_FORCED)) {
+	  var RegExpWrapper = function RegExp(pattern, flags) {
+	    var thisIsRegExp = this instanceof RegExpWrapper;
+	    var patternIsRegExp = isRegexp(pattern);
+	    var flagsAreUndefined = flags === undefined;
+	    var groups = [];
+	    var rawPattern = pattern;
+	    var rawFlags, dotAll, sticky, handled, result, state;
+
+	    if (!thisIsRegExp && patternIsRegExp && flagsAreUndefined && pattern.constructor === RegExpWrapper) {
+	      return pattern;
+	    }
+
+	    if (patternIsRegExp || pattern instanceof RegExpWrapper) {
+	      pattern = pattern.source;
+	      if (flagsAreUndefined) flags = 'flags' in rawPattern ? rawPattern.flags : regexpFlags.call(rawPattern);
+	    }
+
+	    pattern = pattern === undefined ? '' : toString_1(pattern);
+	    flags = flags === undefined ? '' : toString_1(flags);
+	    rawPattern = pattern;
+
+	    if (regexpUnsupportedDotAll && 'dotAll' in re1) {
+	      dotAll = !!flags && flags.indexOf('s') > -1;
+	      if (dotAll) flags = flags.replace(/s/g, '');
+	    }
+
+	    rawFlags = flags;
+
+	    if (UNSUPPORTED_Y$1 && 'sticky' in re1) {
+	      sticky = !!flags && flags.indexOf('y') > -1;
+	      if (sticky) flags = flags.replace(/y/g, '');
+	    }
+
+	    if (regexpUnsupportedNcg) {
+	      handled = handleNCG(pattern);
+	      pattern = handled[0];
+	      groups = handled[1];
+	    }
+
+	    result = inheritIfRequired(NativeRegExp(pattern, flags), thisIsRegExp ? this : RegExpPrototype, RegExpWrapper);
+
+	    if (dotAll || sticky || groups.length) {
+	      state = enforceInternalState(result);
+	      if (dotAll) {
+	        state.dotAll = true;
+	        state.raw = RegExpWrapper(handleDotAll(pattern), rawFlags);
+	      }
+	      if (sticky) state.sticky = true;
+	      if (groups.length) state.groups = groups;
+	    }
+
+	    if (pattern !== rawPattern) try {
+	      // fails in old engines, but we have no alternatives for unsupported regex syntax
+	      createNonEnumerableProperty(result, 'source', rawPattern === '' ? '(?:)' : rawPattern);
+	    } catch (error) { /* empty */ }
+
+	    return result;
+	  };
+
+	  var proxy = function (key) {
+	    key in RegExpWrapper || defineProperty$7(RegExpWrapper, key, {
+	      configurable: true,
+	      get: function () { return NativeRegExp[key]; },
+	      set: function (it) { NativeRegExp[key] = it; }
+	    });
+	  };
+
+	  for (var keys$2 = getOwnPropertyNames$2(NativeRegExp), index = 0; keys$2.length > index;) {
+	    proxy(keys$2[index++]);
+	  }
+
+	  RegExpPrototype.constructor = RegExpWrapper;
+	  RegExpWrapper.prototype = RegExpPrototype;
+	  redefine(global_1, 'RegExp', RegExpWrapper);
+	}
+
+	// https://tc39.es/ecma262/#sec-get-regexp-@@species
+	setSpecies('RegExp');
+
+	/* eslint-disable es/no-object-getownpropertynames -- safe */
+
+	var $getOwnPropertyNames$1 = objectGetOwnPropertyNames.f;
+
+	var toString$3 = {}.toString;
+
+	var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
+	  ? Object.getOwnPropertyNames(window) : [];
+
+	var getWindowNames = function (it) {
+	  try {
+	    return $getOwnPropertyNames$1(it);
+	  } catch (error) {
+	    return windowNames.slice();
+	  }
+	};
+
+	// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
+	var f$2 = function getOwnPropertyNames(it) {
+	  return windowNames && toString$3.call(it) == '[object Window]'
+	    ? getWindowNames(it)
+	    : $getOwnPropertyNames$1(toIndexedObject(it));
+	};
+
+	var objectGetOwnPropertyNamesExternal = {
+		f: f$2
+	};
+
+	var getOwnPropertyNames$1 = objectGetOwnPropertyNamesExternal.f;
+
+	// eslint-disable-next-line es/no-object-getownpropertynames -- required for testing
+	var FAILS_ON_PRIMITIVES$2 = fails(function () { return !Object.getOwnPropertyNames(1); });
+
+	// `Object.getOwnPropertyNames` method
+	// https://tc39.es/ecma262/#sec-object.getownpropertynames
+	_export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$2 }, {
+	  getOwnPropertyNames: getOwnPropertyNames$1
+	});
+
+	var $map$1 = arrayIteration.map;
+
+
+	var HAS_SPECIES_SUPPORT$1 = arrayMethodHasSpeciesSupport('map');
+
+	// `Array.prototype.map` method
+	// https://tc39.es/ecma262/#sec-array.prototype.map
+	// with adding support of @@species
+	_export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$1 }, {
+	  map: function map(callbackfn /* , thisArg */) {
+	    return $map$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	  }
+	});
+
+	// @@match logic
+	fixRegexpWellKnownSymbolLogic('match', function (MATCH, nativeMatch, maybeCallNative) {
+	  return [
+	    // `String.prototype.match` method
+	    // https://tc39.es/ecma262/#sec-string.prototype.match
+	    function match(regexp) {
+	      var O = requireObjectCoercible(this);
+	      var matcher = regexp == undefined ? undefined : getMethod(regexp, MATCH);
+	      return matcher ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](toString_1(O));
+	    },
+	    // `RegExp.prototype[@@match]` method
+	    // https://tc39.es/ecma262/#sec-regexp.prototype-@@match
+	    function (string) {
+	      var rx = anObject(this);
+	      var S = toString_1(string);
+	      var res = maybeCallNative(nativeMatch, rx, S);
+
+	      if (res.done) return res.value;
+
+	      if (!rx.global) return regexpExecAbstract(rx, S);
+
+	      var fullUnicode = rx.unicode;
+	      rx.lastIndex = 0;
+	      var A = [];
+	      var n = 0;
+	      var result;
+	      while ((result = regexpExecAbstract(rx, S)) !== null) {
+	        var matchStr = toString_1(result[0]);
+	        A[n] = matchStr;
+	        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
+	        n++;
+	      }
+	      return n === 0 ? null : A;
+	    }
+	  ];
+	});
+
+	var nativeGetOwnPropertyDescriptor$1 = objectGetOwnPropertyDescriptor.f;
+
+
+	var FAILS_ON_PRIMITIVES$1 = fails(function () { nativeGetOwnPropertyDescriptor$1(1); });
+	var FORCED$7 = !descriptors || FAILS_ON_PRIMITIVES$1;
+
+	// `Object.getOwnPropertyDescriptor` method
+	// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
+	_export({ target: 'Object', stat: true, forced: FORCED$7, sham: !descriptors }, {
+	  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
+	    return nativeGetOwnPropertyDescriptor$1(toIndexedObject(it), key);
+	  }
+	});
+
+	// `Assert: IsConstructor(argument) is true`
+	var aConstructor = function (argument) {
+	  if (isConstructor(argument)) return argument;
+	  throw TypeError(tryToString(argument) + ' is not a constructor');
+	};
+
+	var SPECIES$2 = wellKnownSymbol('species');
+
+	// `SpeciesConstructor` abstract operation
+	// https://tc39.es/ecma262/#sec-speciesconstructor
+	var speciesConstructor = function (O, defaultConstructor) {
+	  var C = anObject(O).constructor;
+	  var S;
+	  return C === undefined || (S = anObject(C)[SPECIES$2]) == undefined ? defaultConstructor : aConstructor(S);
+	};
+
+	var UNSUPPORTED_Y = regexpStickyHelpers.UNSUPPORTED_Y;
+	var arrayPush = [].push;
+	var min$3 = Math.min;
+	var MAX_UINT32 = 0xFFFFFFFF;
+
+	// Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
+	// Weex JS has frozen built-in prototypes, so use try / catch wrapper
+	var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
+	  // eslint-disable-next-line regexp/no-empty-group -- required for testing
+	  var re = /(?:)/;
+	  var originalExec = re.exec;
+	  re.exec = function () { return originalExec.apply(this, arguments); };
+	  var result = 'ab'.split(re);
+	  return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';
+	});
+
+	// @@split logic
+	fixRegexpWellKnownSymbolLogic('split', function (SPLIT, nativeSplit, maybeCallNative) {
+	  var internalSplit;
+	  if (
+	    'abbc'.split(/(b)*/)[1] == 'c' ||
+	    // eslint-disable-next-line regexp/no-empty-group -- required for testing
+	    'test'.split(/(?:)/, -1).length != 4 ||
+	    'ab'.split(/(?:ab)*/).length != 2 ||
+	    '.'.split(/(.?)(.?)/).length != 4 ||
+	    // eslint-disable-next-line regexp/no-empty-capturing-group, regexp/no-empty-group -- required for testing
+	    '.'.split(/()()/).length > 1 ||
+	    ''.split(/.?/).length
+	  ) {
+	    // based on es5-shim implementation, need to rework it
+	    internalSplit = function (separator, limit) {
+	      var string = toString_1(requireObjectCoercible(this));
+	      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
+	      if (lim === 0) return [];
+	      if (separator === undefined) return [string];
+	      // If `separator` is not a regex, use native split
+	      if (!isRegexp(separator)) {
+	        return nativeSplit.call(string, separator, lim);
+	      }
+	      var output = [];
+	      var flags = (separator.ignoreCase ? 'i' : '') +
+	                  (separator.multiline ? 'm' : '') +
+	                  (separator.unicode ? 'u' : '') +
+	                  (separator.sticky ? 'y' : '');
+	      var lastLastIndex = 0;
+	      // Make `global` and avoid `lastIndex` issues by working with a copy
+	      var separatorCopy = new RegExp(separator.source, flags + 'g');
+	      var match, lastIndex, lastLength;
+	      while (match = regexpExec.call(separatorCopy, string)) {
+	        lastIndex = separatorCopy.lastIndex;
+	        if (lastIndex > lastLastIndex) {
+	          output.push(string.slice(lastLastIndex, match.index));
+	          if (match.length > 1 && match.index < string.length) arrayPush.apply(output, match.slice(1));
+	          lastLength = match[0].length;
+	          lastLastIndex = lastIndex;
+	          if (output.length >= lim) break;
+	        }
+	        if (separatorCopy.lastIndex === match.index) separatorCopy.lastIndex++; // Avoid an infinite loop
+	      }
+	      if (lastLastIndex === string.length) {
+	        if (lastLength || !separatorCopy.test('')) output.push('');
+	      } else output.push(string.slice(lastLastIndex));
+	      return output.length > lim ? output.slice(0, lim) : output;
+	    };
+	  // Chakra, V8
+	  } else if ('0'.split(undefined, 0).length) {
+	    internalSplit = function (separator, limit) {
+	      return separator === undefined && limit === 0 ? [] : nativeSplit.call(this, separator, limit);
+	    };
+	  } else internalSplit = nativeSplit;
+
+	  return [
+	    // `String.prototype.split` method
+	    // https://tc39.es/ecma262/#sec-string.prototype.split
+	    function split(separator, limit) {
+	      var O = requireObjectCoercible(this);
+	      var splitter = separator == undefined ? undefined : getMethod(separator, SPLIT);
+	      return splitter
+	        ? splitter.call(separator, O, limit)
+	        : internalSplit.call(toString_1(O), separator, limit);
+	    },
+	    // `RegExp.prototype[@@split]` method
+	    // https://tc39.es/ecma262/#sec-regexp.prototype-@@split
+	    //
+	    // NOTE: This cannot be properly polyfilled in engines that don't support
+	    // the 'y' flag.
+	    function (string, limit) {
+	      var rx = anObject(this);
+	      var S = toString_1(string);
+	      var res = maybeCallNative(internalSplit, rx, S, limit, internalSplit !== nativeSplit);
+
+	      if (res.done) return res.value;
+
+	      var C = speciesConstructor(rx, RegExp);
+
+	      var unicodeMatching = rx.unicode;
+	      var flags = (rx.ignoreCase ? 'i' : '') +
+	                  (rx.multiline ? 'm' : '') +
+	                  (rx.unicode ? 'u' : '') +
+	                  (UNSUPPORTED_Y ? 'g' : 'y');
+
+	      // ^(? + rx + ) is needed, in combination with some S slicing, to
+	      // simulate the 'y' flag.
+	      var splitter = new C(UNSUPPORTED_Y ? '^(?:' + rx.source + ')' : rx, flags);
+	      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
+	      if (lim === 0) return [];
+	      if (S.length === 0) return regexpExecAbstract(splitter, S) === null ? [S] : [];
+	      var p = 0;
+	      var q = 0;
+	      var A = [];
+	      while (q < S.length) {
+	        splitter.lastIndex = UNSUPPORTED_Y ? 0 : q;
+	        var z = regexpExecAbstract(splitter, UNSUPPORTED_Y ? S.slice(q) : S);
+	        var e;
+	        if (
+	          z === null ||
+	          (e = min$3(toLength(splitter.lastIndex + (UNSUPPORTED_Y ? q : 0)), S.length)) === p
+	        ) {
+	          q = advanceStringIndex(S, q, unicodeMatching);
+	        } else {
+	          A.push(S.slice(p, q));
+	          if (A.length === lim) return A;
+	          for (var i = 1; i <= z.length - 1; i++) {
+	            A.push(z[i]);
+	            if (A.length === lim) return A;
+	          }
+	          q = p = e;
+	        }
+	      }
+	      A.push(S.slice(p));
+	      return A;
+	    }
+	  ];
+	}, !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC, UNSUPPORTED_Y);
+
+	var UNSCOPABLES = wellKnownSymbol('unscopables');
+	var ArrayPrototype$1 = Array.prototype;
+
+	// Array.prototype[@@unscopables]
+	// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+	if (ArrayPrototype$1[UNSCOPABLES] == undefined) {
+	  objectDefineProperty.f(ArrayPrototype$1, UNSCOPABLES, {
+	    configurable: true,
+	    value: objectCreate(null)
+	  });
+	}
+
+	// add a key to Array.prototype[@@unscopables]
+	var addToUnscopables = function (key) {
+	  ArrayPrototype$1[UNSCOPABLES][key] = true;
+	};
+
+	var iterators = {};
+
+	var ITERATOR$6 = wellKnownSymbol('iterator');
+	var BUGGY_SAFARI_ITERATORS$1 = false;
+
+	// `%IteratorPrototype%` object
+	// https://tc39.es/ecma262/#sec-%iteratorprototype%-object
+	var IteratorPrototype$2, PrototypeOfArrayIteratorPrototype, arrayIterator;
+
+	/* eslint-disable es/no-array-prototype-keys -- safe */
+	if ([].keys) {
+	  arrayIterator = [].keys();
+	  // Safari 8 has buggy iterators w/o `next`
+	  if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS$1 = true;
+	  else {
+	    PrototypeOfArrayIteratorPrototype = objectGetPrototypeOf(objectGetPrototypeOf(arrayIterator));
+	    if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype$2 = PrototypeOfArrayIteratorPrototype;
+	  }
+	}
+
+	var NEW_ITERATOR_PROTOTYPE = IteratorPrototype$2 == undefined || fails(function () {
+	  var test = {};
+	  // FF44- legacy iterators case
+	  return IteratorPrototype$2[ITERATOR$6].call(test) !== test;
+	});
+
+	if (NEW_ITERATOR_PROTOTYPE) IteratorPrototype$2 = {};
+
+	// `%IteratorPrototype%[@@iterator]()` method
+	// https://tc39.es/ecma262/#sec-%iteratorprototype%-@@iterator
+	if (!isCallable(IteratorPrototype$2[ITERATOR$6])) {
+	  redefine(IteratorPrototype$2, ITERATOR$6, function () {
+	    return this;
+	  });
+	}
+
+	var iteratorsCore = {
+	  IteratorPrototype: IteratorPrototype$2,
+	  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS$1
+	};
+
+	var defineProperty$6 = objectDefineProperty.f;
+
+
+
+	var TO_STRING_TAG$2 = wellKnownSymbol('toStringTag');
+
+	var setToStringTag = function (it, TAG, STATIC) {
+	  if (it && !has$1(it = STATIC ? it : it.prototype, TO_STRING_TAG$2)) {
+	    defineProperty$6(it, TO_STRING_TAG$2, { configurable: true, value: TAG });
+	  }
+	};
+
+	var IteratorPrototype$1 = iteratorsCore.IteratorPrototype;
+
+
+
+
+
+	var returnThis$1 = function () { return this; };
+
+	var createIteratorConstructor = function (IteratorConstructor, NAME, next) {
+	  var TO_STRING_TAG = NAME + ' Iterator';
+	  IteratorConstructor.prototype = objectCreate(IteratorPrototype$1, { next: createPropertyDescriptor(1, next) });
+	  setToStringTag(IteratorConstructor, TO_STRING_TAG, false);
+	  iterators[TO_STRING_TAG] = returnThis$1;
+	  return IteratorConstructor;
+	};
+
+	var PROPER_FUNCTION_NAME$3 = functionName.PROPER;
+	var CONFIGURABLE_FUNCTION_NAME$1 = functionName.CONFIGURABLE;
+	var IteratorPrototype = iteratorsCore.IteratorPrototype;
+	var BUGGY_SAFARI_ITERATORS = iteratorsCore.BUGGY_SAFARI_ITERATORS;
+	var ITERATOR$5 = wellKnownSymbol('iterator');
+	var KEYS = 'keys';
+	var VALUES = 'values';
+	var ENTRIES = 'entries';
+
+	var returnThis = function () { return this; };
+
+	var defineIterator = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
+	  createIteratorConstructor(IteratorConstructor, NAME, next);
+
+	  var getIterationMethod = function (KIND) {
+	    if (KIND === DEFAULT && defaultIterator) return defaultIterator;
+	    if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype) return IterablePrototype[KIND];
+	    switch (KIND) {
+	      case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };
+	      case VALUES: return function values() { return new IteratorConstructor(this, KIND); };
+	      case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };
+	    } return function () { return new IteratorConstructor(this); };
+	  };
+
+	  var TO_STRING_TAG = NAME + ' Iterator';
+	  var INCORRECT_VALUES_NAME = false;
+	  var IterablePrototype = Iterable.prototype;
+	  var nativeIterator = IterablePrototype[ITERATOR$5]
+	    || IterablePrototype['@@iterator']
+	    || DEFAULT && IterablePrototype[DEFAULT];
+	  var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);
+	  var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
+	  var CurrentIteratorPrototype, methods, KEY;
+
+	  // fix native
+	  if (anyNativeIterator) {
+	    CurrentIteratorPrototype = objectGetPrototypeOf(anyNativeIterator.call(new Iterable()));
+	    if (CurrentIteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
+	      if (objectGetPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {
+	        if (objectSetPrototypeOf) {
+	          objectSetPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);
+	        } else if (!isCallable(CurrentIteratorPrototype[ITERATOR$5])) {
+	          redefine(CurrentIteratorPrototype, ITERATOR$5, returnThis);
+	        }
+	      }
+	      // Set @@toStringTag to native iterators
+	      setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true);
+	    }
+	  }
+
+	  // fix Array.prototype.{ values, @@iterator }.name in V8 / FF
+	  if (PROPER_FUNCTION_NAME$3 && DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
+	    if (CONFIGURABLE_FUNCTION_NAME$1) {
+	      createNonEnumerableProperty(IterablePrototype, 'name', VALUES);
+	    } else {
+	      INCORRECT_VALUES_NAME = true;
+	      defaultIterator = function values() { return nativeIterator.call(this); };
+	    }
+	  }
+
+	  // export additional methods
+	  if (DEFAULT) {
+	    methods = {
+	      values: getIterationMethod(VALUES),
+	      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
+	      entries: getIterationMethod(ENTRIES)
+	    };
+	    if (FORCED) for (KEY in methods) {
+	      if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
+	        redefine(IterablePrototype, KEY, methods[KEY]);
+	      }
+	    } else _export({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);
+	  }
+
+	  // define iterator
+	  if (IterablePrototype[ITERATOR$5] !== defaultIterator) {
+	    redefine(IterablePrototype, ITERATOR$5, defaultIterator, { name: DEFAULT });
+	  }
+	  iterators[NAME] = defaultIterator;
+
+	  return methods;
+	};
+
+	var ARRAY_ITERATOR = 'Array Iterator';
+	var setInternalState$5 = internalState.set;
+	var getInternalState$4 = internalState.getterFor(ARRAY_ITERATOR);
+
+	// `Array.prototype.entries` method
+	// https://tc39.es/ecma262/#sec-array.prototype.entries
+	// `Array.prototype.keys` method
+	// https://tc39.es/ecma262/#sec-array.prototype.keys
+	// `Array.prototype.values` method
+	// https://tc39.es/ecma262/#sec-array.prototype.values
+	// `Array.prototype[@@iterator]` method
+	// https://tc39.es/ecma262/#sec-array.prototype-@@iterator
+	// `CreateArrayIterator` internal method
+	// https://tc39.es/ecma262/#sec-createarrayiterator
+	var es_array_iterator = defineIterator(Array, 'Array', function (iterated, kind) {
+	  setInternalState$5(this, {
+	    type: ARRAY_ITERATOR,
+	    target: toIndexedObject(iterated), // target
+	    index: 0,                          // next index
+	    kind: kind                         // kind
+	  });
+	// `%ArrayIteratorPrototype%.next` method
+	// https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
+	}, function () {
+	  var state = getInternalState$4(this);
+	  var target = state.target;
+	  var kind = state.kind;
+	  var index = state.index++;
+	  if (!target || index >= target.length) {
+	    state.target = undefined;
+	    return { value: undefined, done: true };
+	  }
+	  if (kind == 'keys') return { value: index, done: false };
+	  if (kind == 'values') return { value: target[index], done: false };
+	  return { value: [index, target[index]], done: false };
+	}, 'values');
+
+	// argumentsList[@@iterator] is %ArrayProto_values%
+	// https://tc39.es/ecma262/#sec-createunmappedargumentsobject
+	// https://tc39.es/ecma262/#sec-createmappedargumentsobject
+	iterators.Arguments = iterators.Array;
+
+	// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+	addToUnscopables('keys');
+	addToUnscopables('values');
+	addToUnscopables('entries');
+
+	var ITERATOR$4 = wellKnownSymbol('iterator');
+	var SAFE_CLOSING = false;
+
+	try {
+	  var called = 0;
+	  var iteratorWithReturn = {
+	    next: function () {
+	      return { done: !!called++ };
+	    },
+	    'return': function () {
+	      SAFE_CLOSING = true;
+	    }
+	  };
+	  iteratorWithReturn[ITERATOR$4] = function () {
+	    return this;
+	  };
+	  // eslint-disable-next-line es/no-array-from, no-throw-literal -- required for testing
+	  Array.from(iteratorWithReturn, function () { throw 2; });
+	} catch (error) { /* empty */ }
+
+	var checkCorrectnessOfIteration = function (exec, SKIP_CLOSING) {
+	  if (!SKIP_CLOSING && !SAFE_CLOSING) return false;
+	  var ITERATION_SUPPORT = false;
+	  try {
+	    var object = {};
+	    object[ITERATOR$4] = function () {
+	      return {
+	        next: function () {
+	          return { done: ITERATION_SUPPORT = true };
+	        }
+	      };
+	    };
+	    exec(object);
+	  } catch (error) { /* empty */ }
+	  return ITERATION_SUPPORT;
+	};
+
+	// eslint-disable-next-line es/no-typed-arrays -- safe
+	var arrayBufferNative = typeof ArrayBuffer !== 'undefined' && typeof DataView !== 'undefined';
+
+	var defineProperty$5 = objectDefineProperty.f;
+
+
+
+
+
+	var Int8Array$3 = global_1.Int8Array;
+	var Int8ArrayPrototype = Int8Array$3 && Int8Array$3.prototype;
+	var Uint8ClampedArray = global_1.Uint8ClampedArray;
+	var Uint8ClampedArrayPrototype = Uint8ClampedArray && Uint8ClampedArray.prototype;
+	var TypedArray = Int8Array$3 && objectGetPrototypeOf(Int8Array$3);
+	var TypedArrayPrototype = Int8ArrayPrototype && objectGetPrototypeOf(Int8ArrayPrototype);
+	var ObjectPrototype$2 = Object.prototype;
+	var isPrototypeOf = ObjectPrototype$2.isPrototypeOf;
+
+	var TO_STRING_TAG$1 = wellKnownSymbol('toStringTag');
+	var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
+	var TYPED_ARRAY_CONSTRUCTOR$1 = uid('TYPED_ARRAY_CONSTRUCTOR');
+	// Fixing native typed arrays in Opera Presto crashes the browser, see #595
+	var NATIVE_ARRAY_BUFFER_VIEWS$1 = arrayBufferNative && !!objectSetPrototypeOf && classof(global_1.opera) !== 'Opera';
+	var TYPED_ARRAY_TAG_REQIRED = false;
+	var NAME, Constructor, Prototype;
+
+	var TypedArrayConstructorsList = {
+	  Int8Array: 1,
+	  Uint8Array: 1,
+	  Uint8ClampedArray: 1,
+	  Int16Array: 2,
+	  Uint16Array: 2,
+	  Int32Array: 4,
+	  Uint32Array: 4,
+	  Float32Array: 4,
+	  Float64Array: 8
+	};
+
+	var BigIntArrayConstructorsList = {
+	  BigInt64Array: 8,
+	  BigUint64Array: 8
+	};
+
+	var isView = function isView(it) {
+	  if (!isObject$1(it)) return false;
+	  var klass = classof(it);
+	  return klass === 'DataView'
+	    || has$1(TypedArrayConstructorsList, klass)
+	    || has$1(BigIntArrayConstructorsList, klass);
+	};
+
+	var isTypedArray = function (it) {
+	  if (!isObject$1(it)) return false;
+	  var klass = classof(it);
+	  return has$1(TypedArrayConstructorsList, klass)
+	    || has$1(BigIntArrayConstructorsList, klass);
+	};
+
+	var aTypedArray$m = function (it) {
+	  if (isTypedArray(it)) return it;
+	  throw TypeError('Target is not a typed array');
+	};
+
+	var aTypedArrayConstructor$2 = function (C) {
+	  if (isCallable(C) && (!objectSetPrototypeOf || isPrototypeOf.call(TypedArray, C))) return C;
+	  throw TypeError(tryToString(C) + ' is not a typed array constructor');
+	};
+
+	var exportTypedArrayMethod$n = function (KEY, property, forced) {
+	  if (!descriptors) return;
+	  if (forced) for (var ARRAY in TypedArrayConstructorsList) {
+	    var TypedArrayConstructor = global_1[ARRAY];
+	    if (TypedArrayConstructor && has$1(TypedArrayConstructor.prototype, KEY)) try {
+	      delete TypedArrayConstructor.prototype[KEY];
+	    } catch (error) { /* empty */ }
+	  }
+	  if (!TypedArrayPrototype[KEY] || forced) {
+	    redefine(TypedArrayPrototype, KEY, forced ? property
+	      : NATIVE_ARRAY_BUFFER_VIEWS$1 && Int8ArrayPrototype[KEY] || property);
+	  }
+	};
+
+	var exportTypedArrayStaticMethod = function (KEY, property, forced) {
+	  var ARRAY, TypedArrayConstructor;
+	  if (!descriptors) return;
+	  if (objectSetPrototypeOf) {
+	    if (forced) for (ARRAY in TypedArrayConstructorsList) {
+	      TypedArrayConstructor = global_1[ARRAY];
+	      if (TypedArrayConstructor && has$1(TypedArrayConstructor, KEY)) try {
+	        delete TypedArrayConstructor[KEY];
+	      } catch (error) { /* empty */ }
+	    }
+	    if (!TypedArray[KEY] || forced) {
+	      // V8 ~ Chrome 49-50 `%TypedArray%` methods are non-writable non-configurable
+	      try {
+	        return redefine(TypedArray, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS$1 && TypedArray[KEY] || property);
+	      } catch (error) { /* empty */ }
+	    } else return;
+	  }
+	  for (ARRAY in TypedArrayConstructorsList) {
+	    TypedArrayConstructor = global_1[ARRAY];
+	    if (TypedArrayConstructor && (!TypedArrayConstructor[KEY] || forced)) {
+	      redefine(TypedArrayConstructor, KEY, property);
+	    }
+	  }
+	};
+
+	for (NAME in TypedArrayConstructorsList) {
+	  Constructor = global_1[NAME];
+	  Prototype = Constructor && Constructor.prototype;
+	  if (Prototype) createNonEnumerableProperty(Prototype, TYPED_ARRAY_CONSTRUCTOR$1, Constructor);
+	  else NATIVE_ARRAY_BUFFER_VIEWS$1 = false;
+	}
+
+	for (NAME in BigIntArrayConstructorsList) {
+	  Constructor = global_1[NAME];
+	  Prototype = Constructor && Constructor.prototype;
+	  if (Prototype) createNonEnumerableProperty(Prototype, TYPED_ARRAY_CONSTRUCTOR$1, Constructor);
+	}
+
+	// WebKit bug - typed arrays constructors prototype is Object.prototype
+	if (!NATIVE_ARRAY_BUFFER_VIEWS$1 || !isCallable(TypedArray) || TypedArray === Function.prototype) {
+	  // eslint-disable-next-line no-shadow -- safe
+	  TypedArray = function TypedArray() {
+	    throw TypeError('Incorrect invocation');
+	  };
+	  if (NATIVE_ARRAY_BUFFER_VIEWS$1) for (NAME in TypedArrayConstructorsList) {
+	    if (global_1[NAME]) objectSetPrototypeOf(global_1[NAME], TypedArray);
+	  }
+	}
+
+	if (!NATIVE_ARRAY_BUFFER_VIEWS$1 || !TypedArrayPrototype || TypedArrayPrototype === ObjectPrototype$2) {
+	  TypedArrayPrototype = TypedArray.prototype;
+	  if (NATIVE_ARRAY_BUFFER_VIEWS$1) for (NAME in TypedArrayConstructorsList) {
+	    if (global_1[NAME]) objectSetPrototypeOf(global_1[NAME].prototype, TypedArrayPrototype);
+	  }
+	}
+
+	// WebKit bug - one more object in Uint8ClampedArray prototype chain
+	if (NATIVE_ARRAY_BUFFER_VIEWS$1 && objectGetPrototypeOf(Uint8ClampedArrayPrototype) !== TypedArrayPrototype) {
+	  objectSetPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);
+	}
+
+	if (descriptors && !has$1(TypedArrayPrototype, TO_STRING_TAG$1)) {
+	  TYPED_ARRAY_TAG_REQIRED = true;
+	  defineProperty$5(TypedArrayPrototype, TO_STRING_TAG$1, { get: function () {
+	    return isObject$1(this) ? this[TYPED_ARRAY_TAG] : undefined;
+	  } });
+	  for (NAME in TypedArrayConstructorsList) if (global_1[NAME]) {
+	    createNonEnumerableProperty(global_1[NAME], TYPED_ARRAY_TAG, NAME);
+	  }
+	}
+
+	var arrayBufferViewCore = {
+	  NATIVE_ARRAY_BUFFER_VIEWS: NATIVE_ARRAY_BUFFER_VIEWS$1,
+	  TYPED_ARRAY_CONSTRUCTOR: TYPED_ARRAY_CONSTRUCTOR$1,
+	  TYPED_ARRAY_TAG: TYPED_ARRAY_TAG_REQIRED && TYPED_ARRAY_TAG,
+	  aTypedArray: aTypedArray$m,
+	  aTypedArrayConstructor: aTypedArrayConstructor$2,
+	  exportTypedArrayMethod: exportTypedArrayMethod$n,
+	  exportTypedArrayStaticMethod: exportTypedArrayStaticMethod,
+	  isView: isView,
+	  isTypedArray: isTypedArray,
+	  TypedArray: TypedArray,
+	  TypedArrayPrototype: TypedArrayPrototype
+	};
+
+	/* eslint-disable no-new -- required for testing */
+
+
+
+	var NATIVE_ARRAY_BUFFER_VIEWS = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
+
+	var ArrayBuffer$2 = global_1.ArrayBuffer;
+	var Int8Array$2 = global_1.Int8Array;
+
+	var typedArrayConstructorsRequireWrappers = !NATIVE_ARRAY_BUFFER_VIEWS || !fails(function () {
+	  Int8Array$2(1);
+	}) || !fails(function () {
+	  new Int8Array$2(-1);
+	}) || !checkCorrectnessOfIteration(function (iterable) {
+	  new Int8Array$2();
+	  new Int8Array$2(null);
+	  new Int8Array$2(1.5);
+	  new Int8Array$2(iterable);
+	}, true) || fails(function () {
+	  // Safari (11+) bug - a reason why even Safari 13 should load a typed array polyfill
+	  return new Int8Array$2(new ArrayBuffer$2(2), 1, undefined).length !== 1;
+	});
+
+	var redefineAll = function (target, src, options) {
+	  for (var key in src) redefine(target, key, src[key], options);
+	  return target;
+	};
+
+	var anInstance = function (it, Constructor, name) {
+	  if (it instanceof Constructor) return it;
+	  throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');
+	};
+
+	// `ToIndex` abstract operation
+	// https://tc39.es/ecma262/#sec-toindex
+	var toIndex = function (it) {
+	  if (it === undefined) return 0;
+	  var number = toInteger(it);
+	  var length = toLength(number);
+	  if (number !== length) throw RangeError('Wrong length or index');
+	  return length;
+	};
+
+	// IEEE754 conversions based on https://github.com/feross/ieee754
+	var abs = Math.abs;
+	var pow$1 = Math.pow;
+	var floor$4 = Math.floor;
+	var log$2 = Math.log;
+	var LN2 = Math.LN2;
+
+	var pack = function (number, mantissaLength, bytes) {
+	  var buffer = new Array(bytes);
+	  var exponentLength = bytes * 8 - mantissaLength - 1;
+	  var eMax = (1 << exponentLength) - 1;
+	  var eBias = eMax >> 1;
+	  var rt = mantissaLength === 23 ? pow$1(2, -24) - pow$1(2, -77) : 0;
+	  var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;
+	  var index = 0;
+	  var exponent, mantissa, c;
+	  number = abs(number);
+	  // eslint-disable-next-line no-self-compare -- NaN check
+	  if (number != number || number === Infinity) {
+	    // eslint-disable-next-line no-self-compare -- NaN check
+	    mantissa = number != number ? 1 : 0;
+	    exponent = eMax;
+	  } else {
+	    exponent = floor$4(log$2(number) / LN2);
+	    if (number * (c = pow$1(2, -exponent)) < 1) {
+	      exponent--;
+	      c *= 2;
+	    }
+	    if (exponent + eBias >= 1) {
+	      number += rt / c;
+	    } else {
+	      number += rt * pow$1(2, 1 - eBias);
+	    }
+	    if (number * c >= 2) {
+	      exponent++;
+	      c /= 2;
+	    }
+	    if (exponent + eBias >= eMax) {
+	      mantissa = 0;
+	      exponent = eMax;
+	    } else if (exponent + eBias >= 1) {
+	      mantissa = (number * c - 1) * pow$1(2, mantissaLength);
+	      exponent = exponent + eBias;
+	    } else {
+	      mantissa = number * pow$1(2, eBias - 1) * pow$1(2, mantissaLength);
+	      exponent = 0;
+	    }
+	  }
+	  for (; mantissaLength >= 8; buffer[index++] = mantissa & 255, mantissa /= 256, mantissaLength -= 8);
+	  exponent = exponent << mantissaLength | mantissa;
+	  exponentLength += mantissaLength;
+	  for (; exponentLength > 0; buffer[index++] = exponent & 255, exponent /= 256, exponentLength -= 8);
+	  buffer[--index] |= sign * 128;
+	  return buffer;
+	};
+
+	var unpack = function (buffer, mantissaLength) {
+	  var bytes = buffer.length;
+	  var exponentLength = bytes * 8 - mantissaLength - 1;
+	  var eMax = (1 << exponentLength) - 1;
+	  var eBias = eMax >> 1;
+	  var nBits = exponentLength - 7;
+	  var index = bytes - 1;
+	  var sign = buffer[index--];
+	  var exponent = sign & 127;
+	  var mantissa;
+	  sign >>= 7;
+	  for (; nBits > 0; exponent = exponent * 256 + buffer[index], index--, nBits -= 8);
+	  mantissa = exponent & (1 << -nBits) - 1;
+	  exponent >>= -nBits;
+	  nBits += mantissaLength;
+	  for (; nBits > 0; mantissa = mantissa * 256 + buffer[index], index--, nBits -= 8);
+	  if (exponent === 0) {
+	    exponent = 1 - eBias;
+	  } else if (exponent === eMax) {
+	    return mantissa ? NaN : sign ? -Infinity : Infinity;
+	  } else {
+	    mantissa = mantissa + pow$1(2, mantissaLength);
+	    exponent = exponent - eBias;
+	  } return (sign ? -1 : 1) * mantissa * pow$1(2, exponent - mantissaLength);
+	};
+
+	var ieee754 = {
+	  pack: pack,
+	  unpack: unpack
+	};
+
+	// `Array.prototype.fill` method implementation
+	// https://tc39.es/ecma262/#sec-array.prototype.fill
+	var arrayFill = function fill(value /* , start = 0, end = @length */) {
+	  var O = toObject(this);
+	  var length = toLength(O.length);
+	  var argumentsLength = arguments.length;
+	  var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
+	  var end = argumentsLength > 2 ? arguments[2] : undefined;
+	  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
+	  while (endPos > index) O[index++] = value;
+	  return O;
+	};
+
+	var getOwnPropertyNames = objectGetOwnPropertyNames.f;
+	var defineProperty$4 = objectDefineProperty.f;
+
+
+
+
+	var PROPER_FUNCTION_NAME$2 = functionName.PROPER;
+	var CONFIGURABLE_FUNCTION_NAME = functionName.CONFIGURABLE;
+	var getInternalState$3 = internalState.get;
+	var setInternalState$4 = internalState.set;
+	var ARRAY_BUFFER$1 = 'ArrayBuffer';
+	var DATA_VIEW = 'DataView';
+	var PROTOTYPE$1 = 'prototype';
+	var WRONG_LENGTH = 'Wrong length';
+	var WRONG_INDEX = 'Wrong index';
+	var NativeArrayBuffer$1 = global_1[ARRAY_BUFFER$1];
+	var $ArrayBuffer = NativeArrayBuffer$1;
+	var $DataView = global_1[DATA_VIEW];
+	var $DataViewPrototype = $DataView && $DataView[PROTOTYPE$1];
+	var ObjectPrototype$1 = Object.prototype;
+	var RangeError$1 = global_1.RangeError;
+
+	var packIEEE754 = ieee754.pack;
+	var unpackIEEE754 = ieee754.unpack;
+
+	var packInt8 = function (number) {
+	  return [number & 0xFF];
+	};
+
+	var packInt16 = function (number) {
+	  return [number & 0xFF, number >> 8 & 0xFF];
+	};
+
+	var packInt32 = function (number) {
+	  return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
+	};
+
+	var unpackInt32 = function (buffer) {
+	  return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
+	};
+
+	var packFloat32 = function (number) {
+	  return packIEEE754(number, 23, 4);
+	};
+
+	var packFloat64 = function (number) {
+	  return packIEEE754(number, 52, 8);
+	};
+
+	var addGetter = function (Constructor, key) {
+	  defineProperty$4(Constructor[PROTOTYPE$1], key, { get: function () { return getInternalState$3(this)[key]; } });
+	};
+
+	var get = function (view, count, index, isLittleEndian) {
+	  var intIndex = toIndex(index);
+	  var store = getInternalState$3(view);
+	  if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
+	  var bytes = getInternalState$3(store.buffer).bytes;
+	  var start = intIndex + store.byteOffset;
+	  var pack = bytes.slice(start, start + count);
+	  return isLittleEndian ? pack : pack.reverse();
+	};
+
+	var set$1 = function (view, count, index, conversion, value, isLittleEndian) {
+	  var intIndex = toIndex(index);
+	  var store = getInternalState$3(view);
+	  if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
+	  var bytes = getInternalState$3(store.buffer).bytes;
+	  var start = intIndex + store.byteOffset;
+	  var pack = conversion(+value);
+	  for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
+	};
+
+	if (!arrayBufferNative) {
+	  $ArrayBuffer = function ArrayBuffer(length) {
+	    anInstance(this, $ArrayBuffer, ARRAY_BUFFER$1);
+	    var byteLength = toIndex(length);
+	    setInternalState$4(this, {
+	      bytes: arrayFill.call(new Array(byteLength), 0),
+	      byteLength: byteLength
+	    });
+	    if (!descriptors) this.byteLength = byteLength;
+	  };
+
+	  $DataView = function DataView(buffer, byteOffset, byteLength) {
+	    anInstance(this, $DataView, DATA_VIEW);
+	    anInstance(buffer, $ArrayBuffer, DATA_VIEW);
+	    var bufferLength = getInternalState$3(buffer).byteLength;
+	    var offset = toInteger(byteOffset);
+	    if (offset < 0 || offset > bufferLength) throw RangeError$1('Wrong offset');
+	    byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
+	    if (offset + byteLength > bufferLength) throw RangeError$1(WRONG_LENGTH);
+	    setInternalState$4(this, {
+	      buffer: buffer,
+	      byteLength: byteLength,
+	      byteOffset: offset
+	    });
+	    if (!descriptors) {
+	      this.buffer = buffer;
+	      this.byteLength = byteLength;
+	      this.byteOffset = offset;
+	    }
+	  };
+
+	  if (descriptors) {
+	    addGetter($ArrayBuffer, 'byteLength');
+	    addGetter($DataView, 'buffer');
+	    addGetter($DataView, 'byteLength');
+	    addGetter($DataView, 'byteOffset');
+	  }
+
+	  redefineAll($DataView[PROTOTYPE$1], {
+	    getInt8: function getInt8(byteOffset) {
+	      return get(this, 1, byteOffset)[0] << 24 >> 24;
+	    },
+	    getUint8: function getUint8(byteOffset) {
+	      return get(this, 1, byteOffset)[0];
+	    },
+	    getInt16: function getInt16(byteOffset /* , littleEndian */) {
+	      var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
+	      return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
+	    },
+	    getUint16: function getUint16(byteOffset /* , littleEndian */) {
+	      var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
+	      return bytes[1] << 8 | bytes[0];
+	    },
+	    getInt32: function getInt32(byteOffset /* , littleEndian */) {
+	      return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined));
+	    },
+	    getUint32: function getUint32(byteOffset /* , littleEndian */) {
+	      return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined)) >>> 0;
+	    },
+	    getFloat32: function getFloat32(byteOffset /* , littleEndian */) {
+	      return unpackIEEE754(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 23);
+	    },
+	    getFloat64: function getFloat64(byteOffset /* , littleEndian */) {
+	      return unpackIEEE754(get(this, 8, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 52);
+	    },
+	    setInt8: function setInt8(byteOffset, value) {
+	      set$1(this, 1, byteOffset, packInt8, value);
+	    },
+	    setUint8: function setUint8(byteOffset, value) {
+	      set$1(this, 1, byteOffset, packInt8, value);
+	    },
+	    setInt16: function setInt16(byteOffset, value /* , littleEndian */) {
+	      set$1(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
+	    },
+	    setUint16: function setUint16(byteOffset, value /* , littleEndian */) {
+	      set$1(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
+	    },
+	    setInt32: function setInt32(byteOffset, value /* , littleEndian */) {
+	      set$1(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
+	    },
+	    setUint32: function setUint32(byteOffset, value /* , littleEndian */) {
+	      set$1(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
+	    },
+	    setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {
+	      set$1(this, 4, byteOffset, packFloat32, value, arguments.length > 2 ? arguments[2] : undefined);
+	    },
+	    setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {
+	      set$1(this, 8, byteOffset, packFloat64, value, arguments.length > 2 ? arguments[2] : undefined);
+	    }
+	  });
+	} else {
+	  var INCORRECT_ARRAY_BUFFER_NAME = PROPER_FUNCTION_NAME$2 && NativeArrayBuffer$1.name !== ARRAY_BUFFER$1;
+	  /* eslint-disable no-new -- required for testing */
+	  if (!fails(function () {
+	    NativeArrayBuffer$1(1);
+	  }) || !fails(function () {
+	    new NativeArrayBuffer$1(-1);
+	  }) || fails(function () {
+	    new NativeArrayBuffer$1();
+	    new NativeArrayBuffer$1(1.5);
+	    new NativeArrayBuffer$1(NaN);
+	    return INCORRECT_ARRAY_BUFFER_NAME && !CONFIGURABLE_FUNCTION_NAME;
+	  })) {
+	  /* eslint-enable no-new -- required for testing */
+	    $ArrayBuffer = function ArrayBuffer(length) {
+	      anInstance(this, $ArrayBuffer);
+	      return new NativeArrayBuffer$1(toIndex(length));
+	    };
+	    var ArrayBufferPrototype = $ArrayBuffer[PROTOTYPE$1] = NativeArrayBuffer$1[PROTOTYPE$1];
+	    for (var keys$1 = getOwnPropertyNames(NativeArrayBuffer$1), j = 0, key; keys$1.length > j;) {
+	      if (!((key = keys$1[j++]) in $ArrayBuffer)) {
+	        createNonEnumerableProperty($ArrayBuffer, key, NativeArrayBuffer$1[key]);
+	      }
+	    }
+	    ArrayBufferPrototype.constructor = $ArrayBuffer;
+	  } else if (INCORRECT_ARRAY_BUFFER_NAME && CONFIGURABLE_FUNCTION_NAME) {
+	    createNonEnumerableProperty(NativeArrayBuffer$1, 'name', ARRAY_BUFFER$1);
+	  }
+
+	  // WebKit bug - the same parent prototype for typed arrays and data view
+	  if (objectSetPrototypeOf && objectGetPrototypeOf($DataViewPrototype) !== ObjectPrototype$1) {
+	    objectSetPrototypeOf($DataViewPrototype, ObjectPrototype$1);
+	  }
+
+	  // iOS Safari 7.x bug
+	  var testView = new $DataView(new $ArrayBuffer(2));
+	  var $setInt8 = $DataViewPrototype.setInt8;
+	  testView.setInt8(0, 2147483648);
+	  testView.setInt8(1, 2147483649);
+	  if (testView.getInt8(0) || !testView.getInt8(1)) redefineAll($DataViewPrototype, {
+	    setInt8: function setInt8(byteOffset, value) {
+	      $setInt8.call(this, byteOffset, value << 24 >> 24);
+	    },
+	    setUint8: function setUint8(byteOffset, value) {
+	      $setInt8.call(this, byteOffset, value << 24 >> 24);
+	    }
+	  }, { unsafe: true });
+	}
+
+	setToStringTag($ArrayBuffer, ARRAY_BUFFER$1);
+	setToStringTag($DataView, DATA_VIEW);
+
+	var arrayBuffer = {
+	  ArrayBuffer: $ArrayBuffer,
+	  DataView: $DataView
+	};
+
+	var floor$3 = Math.floor;
+
+	// `Number.isInteger` method implementation
+	// https://tc39.es/ecma262/#sec-number.isinteger
+	var isInteger = function isInteger(it) {
+	  return !isObject$1(it) && isFinite(it) && floor$3(it) === it;
+	};
+
+	var toPositiveInteger = function (it) {
+	  var result = toInteger(it);
+	  if (result < 0) throw RangeError("The argument can't be less than 0");
+	  return result;
+	};
+
+	var toOffset = function (it, BYTES) {
+	  var offset = toPositiveInteger(it);
+	  if (offset % BYTES) throw RangeError('Wrong offset');
+	  return offset;
+	};
+
+	var ITERATOR$3 = wellKnownSymbol('iterator');
+
+	var getIteratorMethod = function (it) {
+	  if (it != undefined) return getMethod(it, ITERATOR$3)
+	    || getMethod(it, '@@iterator')
+	    || iterators[classof(it)];
+	};
+
+	var getIterator = function (argument, usingIterator) {
+	  var iteratorMethod = arguments.length < 2 ? getIteratorMethod(argument) : usingIterator;
+	  if (aCallable(iteratorMethod)) return anObject(iteratorMethod.call(argument));
+	  throw TypeError(String(argument) + ' is not iterable');
+	};
+
+	var ITERATOR$2 = wellKnownSymbol('iterator');
+	var ArrayPrototype = Array.prototype;
+
+	// check on default Array iterator
+	var isArrayIteratorMethod = function (it) {
+	  return it !== undefined && (iterators.Array === it || ArrayPrototype[ITERATOR$2] === it);
+	};
+
+	var aTypedArrayConstructor$1 = arrayBufferViewCore.aTypedArrayConstructor;
+
+	var typedArrayFrom = function from(source /* , mapfn, thisArg */) {
+	  var C = aConstructor(this);
+	  var O = toObject(source);
+	  var argumentsLength = arguments.length;
+	  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
+	  var mapping = mapfn !== undefined;
+	  var iteratorMethod = getIteratorMethod(O);
+	  var i, length, result, step, iterator, next;
+	  if (iteratorMethod && !isArrayIteratorMethod(iteratorMethod)) {
+	    iterator = getIterator(O, iteratorMethod);
+	    next = iterator.next;
+	    O = [];
+	    while (!(step = next.call(iterator)).done) {
+	      O.push(step.value);
+	    }
+	  }
+	  if (mapping && argumentsLength > 2) {
+	    mapfn = functionBindContext(mapfn, arguments[2], 2);
+	  }
+	  length = toLength(O.length);
+	  result = new (aTypedArrayConstructor$1(C))(length);
+	  for (i = 0; length > i; i++) {
+	    result[i] = mapping ? mapfn(O[i], i) : O[i];
+	  }
+	  return result;
+	};
+
+	var typedArrayConstructor = createCommonjsModule(function (module) {
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+	var getOwnPropertyNames = objectGetOwnPropertyNames.f;
+
+	var forEach = arrayIteration.forEach;
+
+
+
+
+
+
+	var getInternalState = internalState.get;
+	var setInternalState = internalState.set;
+	var nativeDefineProperty = objectDefineProperty.f;
+	var nativeGetOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
+	var round = Math.round;
+	var RangeError = global_1.RangeError;
+	var ArrayBuffer = arrayBuffer.ArrayBuffer;
+	var DataView = arrayBuffer.DataView;
+	var NATIVE_ARRAY_BUFFER_VIEWS = arrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
+	var TYPED_ARRAY_CONSTRUCTOR = arrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;
+	var TYPED_ARRAY_TAG = arrayBufferViewCore.TYPED_ARRAY_TAG;
+	var TypedArray = arrayBufferViewCore.TypedArray;
+	var TypedArrayPrototype = arrayBufferViewCore.TypedArrayPrototype;
+	var aTypedArrayConstructor = arrayBufferViewCore.aTypedArrayConstructor;
+	var isTypedArray = arrayBufferViewCore.isTypedArray;
+	var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
+	var WRONG_LENGTH = 'Wrong length';
+
+	var fromList = function (C, list) {
+	  var index = 0;
+	  var length = list.length;
+	  var result = new (aTypedArrayConstructor(C))(length);
+	  while (length > index) result[index] = list[index++];
+	  return result;
+	};
+
+	var addGetter = function (it, key) {
+	  nativeDefineProperty(it, key, { get: function () {
+	    return getInternalState(this)[key];
+	  } });
+	};
+
+	var isArrayBuffer = function (it) {
+	  var klass;
+	  return it instanceof ArrayBuffer || (klass = classof(it)) == 'ArrayBuffer' || klass == 'SharedArrayBuffer';
+	};
+
+	var isTypedArrayIndex = function (target, key) {
+	  return isTypedArray(target)
+	    && !isSymbol$1(key)
+	    && key in target
+	    && isInteger(+key)
+	    && key >= 0;
+	};
+
+	var wrappedGetOwnPropertyDescriptor = function getOwnPropertyDescriptor(target, key) {
+	  key = toPropertyKey(key);
+	  return isTypedArrayIndex(target, key)
+	    ? createPropertyDescriptor(2, target[key])
+	    : nativeGetOwnPropertyDescriptor(target, key);
+	};
+
+	var wrappedDefineProperty = function defineProperty(target, key, descriptor) {
+	  key = toPropertyKey(key);
+	  if (isTypedArrayIndex(target, key)
+	    && isObject$1(descriptor)
+	    && has$1(descriptor, 'value')
+	    && !has$1(descriptor, 'get')
+	    && !has$1(descriptor, 'set')
+	    // TODO: add validation descriptor w/o calling accessors
+	    && !descriptor.configurable
+	    && (!has$1(descriptor, 'writable') || descriptor.writable)
+	    && (!has$1(descriptor, 'enumerable') || descriptor.enumerable)
+	  ) {
+	    target[key] = descriptor.value;
+	    return target;
+	  } return nativeDefineProperty(target, key, descriptor);
+	};
+
+	if (descriptors) {
+	  if (!NATIVE_ARRAY_BUFFER_VIEWS) {
+	    objectGetOwnPropertyDescriptor.f = wrappedGetOwnPropertyDescriptor;
+	    objectDefineProperty.f = wrappedDefineProperty;
+	    addGetter(TypedArrayPrototype, 'buffer');
+	    addGetter(TypedArrayPrototype, 'byteOffset');
+	    addGetter(TypedArrayPrototype, 'byteLength');
+	    addGetter(TypedArrayPrototype, 'length');
+	  }
+
+	  _export({ target: 'Object', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
+	    getOwnPropertyDescriptor: wrappedGetOwnPropertyDescriptor,
+	    defineProperty: wrappedDefineProperty
+	  });
+
+	  module.exports = function (TYPE, wrapper, CLAMPED) {
+	    var BYTES = TYPE.match(/\d+$/)[0] / 8;
+	    var CONSTRUCTOR_NAME = TYPE + (CLAMPED ? 'Clamped' : '') + 'Array';
+	    var GETTER = 'get' + TYPE;
+	    var SETTER = 'set' + TYPE;
+	    var NativeTypedArrayConstructor = global_1[CONSTRUCTOR_NAME];
+	    var TypedArrayConstructor = NativeTypedArrayConstructor;
+	    var TypedArrayConstructorPrototype = TypedArrayConstructor && TypedArrayConstructor.prototype;
+	    var exported = {};
+
+	    var getter = function (that, index) {
+	      var data = getInternalState(that);
+	      return data.view[GETTER](index * BYTES + data.byteOffset, true);
+	    };
+
+	    var setter = function (that, index, value) {
+	      var data = getInternalState(that);
+	      if (CLAMPED) value = (value = round(value)) < 0 ? 0 : value > 0xFF ? 0xFF : value & 0xFF;
+	      data.view[SETTER](index * BYTES + data.byteOffset, value, true);
+	    };
+
+	    var addElement = function (that, index) {
+	      nativeDefineProperty(that, index, {
+	        get: function () {
+	          return getter(this, index);
+	        },
+	        set: function (value) {
+	          return setter(this, index, value);
+	        },
+	        enumerable: true
+	      });
+	    };
+
+	    if (!NATIVE_ARRAY_BUFFER_VIEWS) {
+	      TypedArrayConstructor = wrapper(function (that, data, offset, $length) {
+	        anInstance(that, TypedArrayConstructor, CONSTRUCTOR_NAME);
+	        var index = 0;
+	        var byteOffset = 0;
+	        var buffer, byteLength, length;
+	        if (!isObject$1(data)) {
+	          length = toIndex(data);
+	          byteLength = length * BYTES;
+	          buffer = new ArrayBuffer(byteLength);
+	        } else if (isArrayBuffer(data)) {
+	          buffer = data;
+	          byteOffset = toOffset(offset, BYTES);
+	          var $len = data.byteLength;
+	          if ($length === undefined) {
+	            if ($len % BYTES) throw RangeError(WRONG_LENGTH);
+	            byteLength = $len - byteOffset;
+	            if (byteLength < 0) throw RangeError(WRONG_LENGTH);
+	          } else {
+	            byteLength = toLength($length) * BYTES;
+	            if (byteLength + byteOffset > $len) throw RangeError(WRONG_LENGTH);
+	          }
+	          length = byteLength / BYTES;
+	        } else if (isTypedArray(data)) {
+	          return fromList(TypedArrayConstructor, data);
+	        } else {
+	          return typedArrayFrom.call(TypedArrayConstructor, data);
+	        }
+	        setInternalState(that, {
+	          buffer: buffer,
+	          byteOffset: byteOffset,
+	          byteLength: byteLength,
+	          length: length,
+	          view: new DataView(buffer)
+	        });
+	        while (index < length) addElement(that, index++);
+	      });
+
+	      if (objectSetPrototypeOf) objectSetPrototypeOf(TypedArrayConstructor, TypedArray);
+	      TypedArrayConstructorPrototype = TypedArrayConstructor.prototype = objectCreate(TypedArrayPrototype);
+	    } else if (typedArrayConstructorsRequireWrappers) {
+	      TypedArrayConstructor = wrapper(function (dummy, data, typedArrayOffset, $length) {
+	        anInstance(dummy, TypedArrayConstructor, CONSTRUCTOR_NAME);
+	        return inheritIfRequired(function () {
+	          if (!isObject$1(data)) return new NativeTypedArrayConstructor(toIndex(data));
+	          if (isArrayBuffer(data)) return $length !== undefined
+	            ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES), $length)
+	            : typedArrayOffset !== undefined
+	              ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES))
+	              : new NativeTypedArrayConstructor(data);
+	          if (isTypedArray(data)) return fromList(TypedArrayConstructor, data);
+	          return typedArrayFrom.call(TypedArrayConstructor, data);
+	        }(), dummy, TypedArrayConstructor);
+	      });
+
+	      if (objectSetPrototypeOf) objectSetPrototypeOf(TypedArrayConstructor, TypedArray);
+	      forEach(getOwnPropertyNames(NativeTypedArrayConstructor), function (key) {
+	        if (!(key in TypedArrayConstructor)) {
+	          createNonEnumerableProperty(TypedArrayConstructor, key, NativeTypedArrayConstructor[key]);
+	        }
+	      });
+	      TypedArrayConstructor.prototype = TypedArrayConstructorPrototype;
+	    }
+
+	    if (TypedArrayConstructorPrototype.constructor !== TypedArrayConstructor) {
+	      createNonEnumerableProperty(TypedArrayConstructorPrototype, 'constructor', TypedArrayConstructor);
+	    }
+
+	    createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_CONSTRUCTOR, TypedArrayConstructor);
+
+	    if (TYPED_ARRAY_TAG) {
+	      createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_TAG, CONSTRUCTOR_NAME);
+	    }
+
+	    exported[CONSTRUCTOR_NAME] = TypedArrayConstructor;
+
+	    _export({
+	      global: true, forced: TypedArrayConstructor != NativeTypedArrayConstructor, sham: !NATIVE_ARRAY_BUFFER_VIEWS
+	    }, exported);
+
+	    if (!(BYTES_PER_ELEMENT in TypedArrayConstructor)) {
+	      createNonEnumerableProperty(TypedArrayConstructor, BYTES_PER_ELEMENT, BYTES);
+	    }
+
+	    if (!(BYTES_PER_ELEMENT in TypedArrayConstructorPrototype)) {
+	      createNonEnumerableProperty(TypedArrayConstructorPrototype, BYTES_PER_ELEMENT, BYTES);
+	    }
+
+	    setSpecies(CONSTRUCTOR_NAME);
+	  };
+	} else module.exports = function () { /* empty */ };
+	});
+
+	// `Uint8Array` constructor
+	// https://tc39.es/ecma262/#sec-typedarray-objects
+	typedArrayConstructor('Uint8', function (init) {
+	  return function Uint8Array(data, byteOffset, length) {
+	    return init(this, data, byteOffset, length);
+	  };
+	});
+
+	var min$2 = Math.min;
+
+	// `Array.prototype.copyWithin` method implementation
+	// https://tc39.es/ecma262/#sec-array.prototype.copywithin
+	// eslint-disable-next-line es/no-array-prototype-copywithin -- safe
+	var arrayCopyWithin = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
+	  var O = toObject(this);
+	  var len = toLength(O.length);
+	  var to = toAbsoluteIndex(target, len);
+	  var from = toAbsoluteIndex(start, len);
+	  var end = arguments.length > 2 ? arguments[2] : undefined;
+	  var count = min$2((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
+	  var inc = 1;
+	  if (from < to && to < from + count) {
+	    inc = -1;
+	    from += count - 1;
+	    to += count - 1;
+	  }
+	  while (count-- > 0) {
+	    if (from in O) O[to] = O[from];
+	    else delete O[to];
+	    to += inc;
+	    from += inc;
+	  } return O;
+	};
+
+	var aTypedArray$l = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$m = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.copyWithin` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.copywithin
+	exportTypedArrayMethod$m('copyWithin', function copyWithin(target, start /* , end */) {
+	  return arrayCopyWithin.call(aTypedArray$l(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
+	});
+
+	var $every = arrayIteration.every;
+
+	var aTypedArray$k = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$l = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.every` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.every
+	exportTypedArrayMethod$l('every', function every(callbackfn /* , thisArg */) {
+	  return $every(aTypedArray$k(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var aTypedArray$j = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$k = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.fill` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.fill
+	// eslint-disable-next-line no-unused-vars -- required for `.length`
+	exportTypedArrayMethod$k('fill', function fill(value /* , start, end */) {
+	  return arrayFill.apply(aTypedArray$j(this), arguments);
+	});
+
+	var arrayFromConstructorAndList = function (Constructor, list) {
+	  var index = 0;
+	  var length = list.length;
+	  var result = new Constructor(length);
+	  while (length > index) result[index] = list[index++];
+	  return result;
+	};
+
+	var TYPED_ARRAY_CONSTRUCTOR = arrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;
+	var aTypedArrayConstructor = arrayBufferViewCore.aTypedArrayConstructor;
+
+	// a part of `TypedArraySpeciesCreate` abstract operation
+	// https://tc39.es/ecma262/#typedarray-species-create
+	var typedArraySpeciesConstructor = function (originalArray) {
+	  return aTypedArrayConstructor(speciesConstructor(originalArray, originalArray[TYPED_ARRAY_CONSTRUCTOR]));
+	};
+
+	var typedArrayFromSpeciesAndList = function (instance, list) {
+	  return arrayFromConstructorAndList(typedArraySpeciesConstructor(instance), list);
+	};
+
+	var $filter = arrayIteration.filter;
+
+
+	var aTypedArray$i = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$j = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.filter` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.filter
+	exportTypedArrayMethod$j('filter', function filter(callbackfn /* , thisArg */) {
+	  var list = $filter(aTypedArray$i(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	  return typedArrayFromSpeciesAndList(this, list);
+	});
+
+	var $find = arrayIteration.find;
+
+	var aTypedArray$h = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$i = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.find` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.find
+	exportTypedArrayMethod$i('find', function find(predicate /* , thisArg */) {
+	  return $find(aTypedArray$h(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var $findIndex = arrayIteration.findIndex;
+
+	var aTypedArray$g = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$h = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.findIndex` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.findindex
+	exportTypedArrayMethod$h('findIndex', function findIndex(predicate /* , thisArg */) {
+	  return $findIndex(aTypedArray$g(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var $forEach$1 = arrayIteration.forEach;
+
+	var aTypedArray$f = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$g = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.forEach` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.foreach
+	exportTypedArrayMethod$g('forEach', function forEach(callbackfn /* , thisArg */) {
+	  $forEach$1(aTypedArray$f(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var $includes$1 = arrayIncludes.includes;
+
+	var aTypedArray$e = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$f = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.includes` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.includes
+	exportTypedArrayMethod$f('includes', function includes(searchElement /* , fromIndex */) {
+	  return $includes$1(aTypedArray$e(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var $indexOf = arrayIncludes.indexOf;
+
+	var aTypedArray$d = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$e = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.indexOf` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.indexof
+	exportTypedArrayMethod$e('indexOf', function indexOf(searchElement /* , fromIndex */) {
+	  return $indexOf(aTypedArray$d(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var PROPER_FUNCTION_NAME$1 = functionName.PROPER;
+
+
+
+
+	var ITERATOR$1 = wellKnownSymbol('iterator');
+	var Uint8Array$2 = global_1.Uint8Array;
+	var arrayValues = es_array_iterator.values;
+	var arrayKeys = es_array_iterator.keys;
+	var arrayEntries = es_array_iterator.entries;
+	var aTypedArray$c = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$d = arrayBufferViewCore.exportTypedArrayMethod;
+	var nativeTypedArrayIterator = Uint8Array$2 && Uint8Array$2.prototype[ITERATOR$1];
+
+	var PROPER_ARRAY_VALUES_NAME = !!nativeTypedArrayIterator && nativeTypedArrayIterator.name === 'values';
+
+	var typedArrayValues = function values() {
+	  return arrayValues.call(aTypedArray$c(this));
+	};
+
+	// `%TypedArray%.prototype.entries` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.entries
+	exportTypedArrayMethod$d('entries', function entries() {
+	  return arrayEntries.call(aTypedArray$c(this));
+	});
+	// `%TypedArray%.prototype.keys` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.keys
+	exportTypedArrayMethod$d('keys', function keys() {
+	  return arrayKeys.call(aTypedArray$c(this));
+	});
+	// `%TypedArray%.prototype.values` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.values
+	exportTypedArrayMethod$d('values', typedArrayValues, PROPER_FUNCTION_NAME$1 && !PROPER_ARRAY_VALUES_NAME);
+	// `%TypedArray%.prototype[@@iterator]` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype-@@iterator
+	exportTypedArrayMethod$d(ITERATOR$1, typedArrayValues, PROPER_FUNCTION_NAME$1 && !PROPER_ARRAY_VALUES_NAME);
+
+	var aTypedArray$b = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$c = arrayBufferViewCore.exportTypedArrayMethod;
+	var $join = [].join;
+
+	// `%TypedArray%.prototype.join` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.join
+	// eslint-disable-next-line no-unused-vars -- required for `.length`
+	exportTypedArrayMethod$c('join', function join(separator) {
+	  return $join.apply(aTypedArray$b(this), arguments);
+	});
+
+	/* eslint-disable es/no-array-prototype-lastindexof -- safe */
+
+
+
+
+
+	var min$1 = Math.min;
+	var $lastIndexOf = [].lastIndexOf;
+	var NEGATIVE_ZERO = !!$lastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;
+	var STRICT_METHOD$1 = arrayMethodIsStrict('lastIndexOf');
+	var FORCED$6 = NEGATIVE_ZERO || !STRICT_METHOD$1;
+
+	// `Array.prototype.lastIndexOf` method implementation
+	// https://tc39.es/ecma262/#sec-array.prototype.lastindexof
+	var arrayLastIndexOf = FORCED$6 ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {
+	  // convert -0 to +0
+	  if (NEGATIVE_ZERO) return $lastIndexOf.apply(this, arguments) || 0;
+	  var O = toIndexedObject(this);
+	  var length = toLength(O.length);
+	  var index = length - 1;
+	  if (arguments.length > 1) index = min$1(index, toInteger(arguments[1]));
+	  if (index < 0) index = length + index;
+	  for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;
+	  return -1;
+	} : $lastIndexOf;
+
+	var aTypedArray$a = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$b = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.lastIndexOf` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.lastindexof
+	// eslint-disable-next-line no-unused-vars -- required for `.length`
+	exportTypedArrayMethod$b('lastIndexOf', function lastIndexOf(searchElement /* , fromIndex */) {
+	  return arrayLastIndexOf.apply(aTypedArray$a(this), arguments);
+	});
+
+	var $map = arrayIteration.map;
+
+
+	var aTypedArray$9 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$a = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.map` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.map
+	exportTypedArrayMethod$a('map', function map(mapfn /* , thisArg */) {
+	  return $map(aTypedArray$9(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {
+	    return new (typedArraySpeciesConstructor(O))(length);
+	  });
+	});
+
+	// `Array.prototype.{ reduce, reduceRight }` methods implementation
+	var createMethod$1 = function (IS_RIGHT) {
+	  return function (that, callbackfn, argumentsLength, memo) {
+	    aCallable(callbackfn);
+	    var O = toObject(that);
+	    var self = indexedObject(O);
+	    var length = toLength(O.length);
+	    var index = IS_RIGHT ? length - 1 : 0;
+	    var i = IS_RIGHT ? -1 : 1;
+	    if (argumentsLength < 2) while (true) {
+	      if (index in self) {
+	        memo = self[index];
+	        index += i;
+	        break;
+	      }
+	      index += i;
+	      if (IS_RIGHT ? index < 0 : length <= index) {
+	        throw TypeError('Reduce of empty array with no initial value');
+	      }
+	    }
+	    for (;IS_RIGHT ? index >= 0 : length > index; index += i) if (index in self) {
+	      memo = callbackfn(memo, self[index], index, O);
+	    }
+	    return memo;
+	  };
+	};
+
+	var arrayReduce = {
+	  // `Array.prototype.reduce` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.reduce
+	  left: createMethod$1(false),
+	  // `Array.prototype.reduceRight` method
+	  // https://tc39.es/ecma262/#sec-array.prototype.reduceright
+	  right: createMethod$1(true)
+	};
+
+	var $reduce = arrayReduce.left;
+
+	var aTypedArray$8 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$9 = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.reduce` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduce
+	exportTypedArrayMethod$9('reduce', function reduce(callbackfn /* , initialValue */) {
+	  return $reduce(aTypedArray$8(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var $reduceRight = arrayReduce.right;
+
+	var aTypedArray$7 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$8 = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.reduceRicht` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduceright
+	exportTypedArrayMethod$8('reduceRight', function reduceRight(callbackfn /* , initialValue */) {
+	  return $reduceRight(aTypedArray$7(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	var aTypedArray$6 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$7 = arrayBufferViewCore.exportTypedArrayMethod;
+	var floor$2 = Math.floor;
+
+	// `%TypedArray%.prototype.reverse` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reverse
+	exportTypedArrayMethod$7('reverse', function reverse() {
+	  var that = this;
+	  var length = aTypedArray$6(that).length;
+	  var middle = floor$2(length / 2);
+	  var index = 0;
+	  var value;
+	  while (index < middle) {
+	    value = that[index];
+	    that[index++] = that[--length];
+	    that[length] = value;
+	  } return that;
+	});
+
+	var aTypedArray$5 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$6 = arrayBufferViewCore.exportTypedArrayMethod;
+
+	var FORCED$5 = fails(function () {
+	  // eslint-disable-next-line es/no-typed-arrays -- required for testing
+	  new Int8Array(1).set({});
+	});
+
+	// `%TypedArray%.prototype.set` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.set
+	exportTypedArrayMethod$6('set', function set(arrayLike /* , offset */) {
+	  aTypedArray$5(this);
+	  var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);
+	  var length = this.length;
+	  var src = toObject(arrayLike);
+	  var len = toLength(src.length);
+	  var index = 0;
+	  if (len + offset > length) throw RangeError('Wrong length');
+	  while (index < len) this[offset + index] = src[index++];
+	}, FORCED$5);
+
+	var aTypedArray$4 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$5 = arrayBufferViewCore.exportTypedArrayMethod;
+	var $slice$1 = [].slice;
+
+	var FORCED$4 = fails(function () {
+	  // eslint-disable-next-line es/no-typed-arrays -- required for testing
+	  new Int8Array(1).slice();
+	});
+
+	// `%TypedArray%.prototype.slice` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.slice
+	exportTypedArrayMethod$5('slice', function slice(start, end) {
+	  var list = $slice$1.call(aTypedArray$4(this), start, end);
+	  var C = typedArraySpeciesConstructor(this);
+	  var index = 0;
+	  var length = list.length;
+	  var result = new C(length);
+	  while (length > index) result[index] = list[index++];
+	  return result;
+	}, FORCED$4);
+
+	var $some = arrayIteration.some;
+
+	var aTypedArray$3 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$4 = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.some` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.some
+	exportTypedArrayMethod$4('some', function some(callbackfn /* , thisArg */) {
+	  return $some(aTypedArray$3(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+	});
+
+	// TODO: use something more complex like timsort?
+	var floor$1 = Math.floor;
+
+	var mergeSort = function (array, comparefn) {
+	  var length = array.length;
+	  var middle = floor$1(length / 2);
+	  return length < 8 ? insertionSort(array, comparefn) : merge(
+	    mergeSort(array.slice(0, middle), comparefn),
+	    mergeSort(array.slice(middle), comparefn),
+	    comparefn
+	  );
+	};
+
+	var insertionSort = function (array, comparefn) {
+	  var length = array.length;
+	  var i = 1;
+	  var element, j;
+
+	  while (i < length) {
+	    j = i;
+	    element = array[i];
+	    while (j && comparefn(array[j - 1], element) > 0) {
+	      array[j] = array[--j];
+	    }
+	    if (j !== i++) array[j] = element;
+	  } return array;
+	};
+
+	var merge = function (left, right, comparefn) {
+	  var llength = left.length;
+	  var rlength = right.length;
+	  var lindex = 0;
+	  var rindex = 0;
+	  var result = [];
+
+	  while (lindex < llength || rindex < rlength) {
+	    if (lindex < llength && rindex < rlength) {
+	      result.push(comparefn(left[lindex], right[rindex]) <= 0 ? left[lindex++] : right[rindex++]);
+	    } else {
+	      result.push(lindex < llength ? left[lindex++] : right[rindex++]);
+	    }
+	  } return result;
+	};
+
+	var arraySort = mergeSort;
+
+	var firefox = engineUserAgent.match(/firefox\/(\d+)/i);
+
+	var engineFfVersion = !!firefox && +firefox[1];
+
+	var engineIsIeOrEdge = /MSIE|Trident/.test(engineUserAgent);
+
+	var webkit = engineUserAgent.match(/AppleWebKit\/(\d+)\./);
+
+	var engineWebkitVersion = !!webkit && +webkit[1];
+
+	var aTypedArray$2 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$3 = arrayBufferViewCore.exportTypedArrayMethod;
+	var Uint16Array = global_1.Uint16Array;
+	var nativeSort$1 = Uint16Array && Uint16Array.prototype.sort;
+
+	// WebKit
+	var ACCEPT_INCORRECT_ARGUMENTS = !!nativeSort$1 && !fails(function () {
+	  var array = new Uint16Array(2);
+	  array.sort(null);
+	  array.sort({});
+	});
+
+	var STABLE_SORT$1 = !!nativeSort$1 && !fails(function () {
+	  // feature detection can be too slow, so check engines versions
+	  if (engineV8Version) return engineV8Version < 74;
+	  if (engineFfVersion) return engineFfVersion < 67;
+	  if (engineIsIeOrEdge) return true;
+	  if (engineWebkitVersion) return engineWebkitVersion < 602;
+
+	  var array = new Uint16Array(516);
+	  var expected = Array(516);
+	  var index, mod;
+
+	  for (index = 0; index < 516; index++) {
+	    mod = index % 4;
+	    array[index] = 515 - index;
+	    expected[index] = index - 2 * mod + 3;
+	  }
+
+	  array.sort(function (a, b) {
+	    return (a / 4 | 0) - (b / 4 | 0);
+	  });
+
+	  for (index = 0; index < 516; index++) {
+	    if (array[index] !== expected[index]) return true;
+	  }
+	});
+
+	var getSortCompare$1 = function (comparefn) {
+	  return function (x, y) {
+	    if (comparefn !== undefined) return +comparefn(x, y) || 0;
+	    // eslint-disable-next-line no-self-compare -- NaN check
+	    if (y !== y) return -1;
+	    // eslint-disable-next-line no-self-compare -- NaN check
+	    if (x !== x) return 1;
+	    if (x === 0 && y === 0) return 1 / x > 0 && 1 / y < 0 ? 1 : -1;
+	    return x > y;
+	  };
+	};
+
+	// `%TypedArray%.prototype.sort` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort
+	exportTypedArrayMethod$3('sort', function sort(comparefn) {
+	  var array = this;
+	  if (comparefn !== undefined) aCallable(comparefn);
+	  if (STABLE_SORT$1) return nativeSort$1.call(array, comparefn);
+
+	  aTypedArray$2(array);
+	  var arrayLength = toLength(array.length);
+	  var items = Array(arrayLength);
+	  var index;
+
+	  for (index = 0; index < arrayLength; index++) {
+	    items[index] = array[index];
+	  }
+
+	  items = arraySort(array, getSortCompare$1(comparefn));
+
+	  for (index = 0; index < arrayLength; index++) {
+	    array[index] = items[index];
+	  }
+
+	  return array;
+	}, !STABLE_SORT$1 || ACCEPT_INCORRECT_ARGUMENTS);
+
+	var aTypedArray$1 = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$2 = arrayBufferViewCore.exportTypedArrayMethod;
+
+	// `%TypedArray%.prototype.subarray` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.subarray
+	exportTypedArrayMethod$2('subarray', function subarray(begin, end) {
+	  var O = aTypedArray$1(this);
+	  var length = O.length;
+	  var beginIndex = toAbsoluteIndex(begin, length);
+	  var C = typedArraySpeciesConstructor(O);
+	  return new C(
+	    O.buffer,
+	    O.byteOffset + beginIndex * O.BYTES_PER_ELEMENT,
+	    toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - beginIndex)
+	  );
+	});
+
+	var Int8Array$1 = global_1.Int8Array;
+	var aTypedArray = arrayBufferViewCore.aTypedArray;
+	var exportTypedArrayMethod$1 = arrayBufferViewCore.exportTypedArrayMethod;
+	var $toLocaleString = [].toLocaleString;
+	var $slice = [].slice;
+
+	// iOS Safari 6.x fails here
+	var TO_LOCALE_STRING_BUG = !!Int8Array$1 && fails(function () {
+	  $toLocaleString.call(new Int8Array$1(1));
+	});
+
+	var FORCED$3 = fails(function () {
+	  return [1, 2].toLocaleString() != new Int8Array$1([1, 2]).toLocaleString();
+	}) || !fails(function () {
+	  Int8Array$1.prototype.toLocaleString.call([1, 2]);
+	});
+
+	// `%TypedArray%.prototype.toLocaleString` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.tolocalestring
+	exportTypedArrayMethod$1('toLocaleString', function toLocaleString() {
+	  return $toLocaleString.apply(TO_LOCALE_STRING_BUG ? $slice.call(aTypedArray(this)) : aTypedArray(this), arguments);
+	}, FORCED$3);
+
+	var exportTypedArrayMethod = arrayBufferViewCore.exportTypedArrayMethod;
+
+
+
+	var Uint8Array$1 = global_1.Uint8Array;
+	var Uint8ArrayPrototype = Uint8Array$1 && Uint8Array$1.prototype || {};
+	var arrayToString = [].toString;
+	var arrayJoin = [].join;
+
+	if (fails(function () { arrayToString.call({}); })) {
+	  arrayToString = function toString() {
+	    return arrayJoin.call(this);
+	  };
+	}
+
+	var IS_NOT_ARRAY_METHOD = Uint8ArrayPrototype.toString != arrayToString;
+
+	// `%TypedArray%.prototype.toString` method
+	// https://tc39.es/ecma262/#sec-%typedarray%.prototype.tostring
+	exportTypedArrayMethod('toString', arrayToString, IS_NOT_ARRAY_METHOD);
+
+	var ARRAY_BUFFER = 'ArrayBuffer';
+	var ArrayBuffer$1 = arrayBuffer[ARRAY_BUFFER];
+	var NativeArrayBuffer = global_1[ARRAY_BUFFER];
+
+	// `ArrayBuffer` constructor
+	// https://tc39.es/ecma262/#sec-arraybuffer-constructor
+	_export({ global: true, forced: NativeArrayBuffer !== ArrayBuffer$1 }, {
+	  ArrayBuffer: ArrayBuffer$1
+	});
+
+	setSpecies(ARRAY_BUFFER);
+
+	var f$1 = wellKnownSymbol;
+
+	var wellKnownSymbolWrapped = {
+		f: f$1
+	};
+
+	var path$1 = global_1;
+
+	var defineProperty$3 = objectDefineProperty.f;
+
+	var defineWellKnownSymbol = function (NAME) {
+	  var Symbol = path$1.Symbol || (path$1.Symbol = {});
+	  if (!has$1(Symbol, NAME)) defineProperty$3(Symbol, NAME, {
+	    value: wellKnownSymbolWrapped.f(NAME)
+	  });
+	};
+
+	var $forEach = arrayIteration.forEach;
+
+	var HIDDEN = sharedKey('hidden');
+	var SYMBOL = 'Symbol';
+	var PROTOTYPE = 'prototype';
+	var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
+	var setInternalState$3 = internalState.set;
+	var getInternalState$2 = internalState.getterFor(SYMBOL);
+	var ObjectPrototype = Object[PROTOTYPE];
+	var $Symbol = global_1.Symbol;
+	var $stringify = getBuiltIn('JSON', 'stringify');
+	var nativeGetOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
+	var nativeDefineProperty = objectDefineProperty.f;
+	var nativeGetOwnPropertyNames = objectGetOwnPropertyNamesExternal.f;
+	var nativePropertyIsEnumerable = objectPropertyIsEnumerable.f;
+	var AllSymbols = shared('symbols');
+	var ObjectPrototypeSymbols = shared('op-symbols');
+	var StringToSymbolRegistry = shared('string-to-symbol-registry');
+	var SymbolToStringRegistry = shared('symbol-to-string-registry');
+	var WellKnownSymbolsStore = shared('wks');
+	var QObject = global_1.QObject;
+	// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
+	var USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
+
+	// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
+	var setSymbolDescriptor = descriptors && fails(function () {
+	  return objectCreate(nativeDefineProperty({}, 'a', {
+	    get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }
+	  })).a != 7;
+	}) ? function (O, P, Attributes) {
+	  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);
+	  if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
+	  nativeDefineProperty(O, P, Attributes);
+	  if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
+	    nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);
+	  }
+	} : nativeDefineProperty;
+
+	var wrap = function (tag, description) {
+	  var symbol = AllSymbols[tag] = objectCreate($Symbol[PROTOTYPE]);
+	  setInternalState$3(symbol, {
+	    type: SYMBOL,
+	    tag: tag,
+	    description: description
+	  });
+	  if (!descriptors) symbol.description = description;
+	  return symbol;
+	};
+
+	var $defineProperty = function defineProperty(O, P, Attributes) {
+	  if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
+	  anObject(O);
+	  var key = toPropertyKey(P);
+	  anObject(Attributes);
+	  if (has$1(AllSymbols, key)) {
+	    if (!Attributes.enumerable) {
+	      if (!has$1(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));
+	      O[HIDDEN][key] = true;
+	    } else {
+	      if (has$1(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;
+	      Attributes = objectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });
+	    } return setSymbolDescriptor(O, key, Attributes);
+	  } return nativeDefineProperty(O, key, Attributes);
+	};
+
+	var $defineProperties = function defineProperties(O, Properties) {
+	  anObject(O);
+	  var properties = toIndexedObject(Properties);
+	  var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));
+	  $forEach(keys, function (key) {
+	    if (!descriptors || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);
+	  });
+	  return O;
+	};
+
+	var $create = function create(O, Properties) {
+	  return Properties === undefined ? objectCreate(O) : $defineProperties(objectCreate(O), Properties);
+	};
+
+	var $propertyIsEnumerable = function propertyIsEnumerable(V) {
+	  var P = toPropertyKey(V);
+	  var enumerable = nativePropertyIsEnumerable.call(this, P);
+	  if (this === ObjectPrototype && has$1(AllSymbols, P) && !has$1(ObjectPrototypeSymbols, P)) return false;
+	  return enumerable || !has$1(this, P) || !has$1(AllSymbols, P) || has$1(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;
+	};
+
+	var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
+	  var it = toIndexedObject(O);
+	  var key = toPropertyKey(P);
+	  if (it === ObjectPrototype && has$1(AllSymbols, key) && !has$1(ObjectPrototypeSymbols, key)) return;
+	  var descriptor = nativeGetOwnPropertyDescriptor(it, key);
+	  if (descriptor && has$1(AllSymbols, key) && !(has$1(it, HIDDEN) && it[HIDDEN][key])) {
+	    descriptor.enumerable = true;
+	  }
+	  return descriptor;
+	};
+
+	var $getOwnPropertyNames = function getOwnPropertyNames(O) {
+	  var names = nativeGetOwnPropertyNames(toIndexedObject(O));
+	  var result = [];
+	  $forEach(names, function (key) {
+	    if (!has$1(AllSymbols, key) && !has$1(hiddenKeys$1, key)) result.push(key);
+	  });
+	  return result;
+	};
+
+	var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
+	  var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
+	  var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
+	  var result = [];
+	  $forEach(names, function (key) {
+	    if (has$1(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has$1(ObjectPrototype, key))) {
+	      result.push(AllSymbols[key]);
+	    }
+	  });
+	  return result;
+	};
+
+	// `Symbol` constructor
+	// https://tc39.es/ecma262/#sec-symbol-constructor
+	if (!nativeSymbol$1) {
+	  $Symbol = function Symbol() {
+	    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');
+	    var description = !arguments.length || arguments[0] === undefined ? undefined : toString_1(arguments[0]);
+	    var tag = uid(description);
+	    var setter = function (value) {
+	      if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);
+	      if (has$1(this, HIDDEN) && has$1(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
+	      setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
+	    };
+	    if (descriptors && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });
+	    return wrap(tag, description);
+	  };
+
+	  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
+	    return getInternalState$2(this).tag;
+	  });
+
+	  redefine($Symbol, 'withoutSetter', function (description) {
+	    return wrap(uid(description), description);
+	  });
+
+	  objectPropertyIsEnumerable.f = $propertyIsEnumerable;
+	  objectDefineProperty.f = $defineProperty;
+	  objectGetOwnPropertyDescriptor.f = $getOwnPropertyDescriptor;
+	  objectGetOwnPropertyNames.f = objectGetOwnPropertyNamesExternal.f = $getOwnPropertyNames;
+	  objectGetOwnPropertySymbols.f = $getOwnPropertySymbols;
+
+	  wellKnownSymbolWrapped.f = function (name) {
+	    return wrap(wellKnownSymbol(name), name);
+	  };
+
+	  if (descriptors) {
+	    // https://github.com/tc39/proposal-Symbol-description
+	    nativeDefineProperty($Symbol[PROTOTYPE], 'description', {
+	      configurable: true,
+	      get: function description() {
+	        return getInternalState$2(this).description;
+	      }
+	    });
+	    {
+	      redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
+	    }
+	  }
+	}
+
+	_export({ global: true, wrap: true, forced: !nativeSymbol$1, sham: !nativeSymbol$1 }, {
+	  Symbol: $Symbol
+	});
+
+	$forEach(objectKeys(WellKnownSymbolsStore), function (name) {
+	  defineWellKnownSymbol(name);
+	});
+
+	_export({ target: SYMBOL, stat: true, forced: !nativeSymbol$1 }, {
+	  // `Symbol.for` method
+	  // https://tc39.es/ecma262/#sec-symbol.for
+	  'for': function (key) {
+	    var string = toString_1(key);
+	    if (has$1(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
+	    var symbol = $Symbol(string);
+	    StringToSymbolRegistry[string] = symbol;
+	    SymbolToStringRegistry[symbol] = string;
+	    return symbol;
+	  },
+	  // `Symbol.keyFor` method
+	  // https://tc39.es/ecma262/#sec-symbol.keyfor
+	  keyFor: function keyFor(sym) {
+	    if (!isSymbol$1(sym)) throw TypeError(sym + ' is not a symbol');
+	    if (has$1(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
+	  },
+	  useSetter: function () { USE_SETTER = true; },
+	  useSimple: function () { USE_SETTER = false; }
+	});
+
+	_export({ target: 'Object', stat: true, forced: !nativeSymbol$1, sham: !descriptors }, {
+	  // `Object.create` method
+	  // https://tc39.es/ecma262/#sec-object.create
+	  create: $create,
+	  // `Object.defineProperty` method
+	  // https://tc39.es/ecma262/#sec-object.defineproperty
+	  defineProperty: $defineProperty,
+	  // `Object.defineProperties` method
+	  // https://tc39.es/ecma262/#sec-object.defineproperties
+	  defineProperties: $defineProperties,
+	  // `Object.getOwnPropertyDescriptor` method
+	  // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
+	  getOwnPropertyDescriptor: $getOwnPropertyDescriptor
+	});
+
+	_export({ target: 'Object', stat: true, forced: !nativeSymbol$1 }, {
+	  // `Object.getOwnPropertyNames` method
+	  // https://tc39.es/ecma262/#sec-object.getownpropertynames
+	  getOwnPropertyNames: $getOwnPropertyNames,
+	  // `Object.getOwnPropertySymbols` method
+	  // https://tc39.es/ecma262/#sec-object.getownpropertysymbols
+	  getOwnPropertySymbols: $getOwnPropertySymbols
+	});
+
+	// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
+	// https://bugs.chromium.org/p/v8/issues/detail?id=3443
+	_export({ target: 'Object', stat: true, forced: fails(function () { objectGetOwnPropertySymbols.f(1); }) }, {
+	  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
+	    return objectGetOwnPropertySymbols.f(toObject(it));
+	  }
+	});
+
+	// `JSON.stringify` method behavior with symbols
+	// https://tc39.es/ecma262/#sec-json.stringify
+	if ($stringify) {
+	  var FORCED_JSON_STRINGIFY = !nativeSymbol$1 || fails(function () {
+	    var symbol = $Symbol();
+	    // MS Edge converts symbol values to JSON as {}
+	    return $stringify([symbol]) != '[null]'
+	      // WebKit converts symbol values to JSON as null
+	      || $stringify({ a: symbol }) != '{}'
+	      // V8 throws on boxed symbols
+	      || $stringify(Object(symbol)) != '{}';
+	  });
+
+	  _export({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {
+	    // eslint-disable-next-line no-unused-vars -- required for `.length`
+	    stringify: function stringify(it, replacer, space) {
+	      var args = [it];
+	      var index = 1;
+	      var $replacer;
+	      while (arguments.length > index) args.push(arguments[index++]);
+	      $replacer = replacer;
+	      if (!isObject$1(replacer) && it === undefined || isSymbol$1(it)) return; // IE8 returns string on undefined
+	      if (!isArray$3(replacer)) replacer = function (key, value) {
+	        if (isCallable($replacer)) value = $replacer.call(this, key, value);
+	        if (!isSymbol$1(value)) return value;
+	      };
+	      args[1] = replacer;
+	      return $stringify.apply(null, args);
+	    }
+	  });
+	}
+
+	// `Symbol.prototype[@@toPrimitive]` method
+	// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
+	if (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {
+	  var valueOf$1 = $Symbol[PROTOTYPE].valueOf;
+	  redefine($Symbol[PROTOTYPE], TO_PRIMITIVE, function () {
+	    return valueOf$1.apply(this, arguments);
+	  });
+	}
+	// `Symbol.prototype[@@toStringTag]` property
+	// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
+	setToStringTag($Symbol, SYMBOL);
+
+	hiddenKeys$1[HIDDEN] = true;
+
+	var defineProperty$2 = objectDefineProperty.f;
+
+
+	var NativeSymbol = global_1.Symbol;
+
+	if (descriptors && isCallable(NativeSymbol) && (!('description' in NativeSymbol.prototype) ||
+	  // Safari 12 bug
+	  NativeSymbol().description !== undefined
+	)) {
+	  var EmptyStringDescriptionStore = {};
+	  // wrap Symbol constructor for correct work with undefined description
+	  var SymbolWrapper = function Symbol() {
+	    var description = arguments.length < 1 || arguments[0] === undefined ? undefined : String(arguments[0]);
+	    var result = this instanceof SymbolWrapper
+	      ? new NativeSymbol(description)
+	      // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'
+	      : description === undefined ? NativeSymbol() : NativeSymbol(description);
+	    if (description === '') EmptyStringDescriptionStore[result] = true;
+	    return result;
+	  };
+	  copyConstructorProperties(SymbolWrapper, NativeSymbol);
+	  var symbolPrototype = SymbolWrapper.prototype = NativeSymbol.prototype;
+	  symbolPrototype.constructor = SymbolWrapper;
+
+	  var symbolToString = symbolPrototype.toString;
+	  var nativeSymbol = String(NativeSymbol('test')) == 'Symbol(test)';
+	  var regexp = /^Symbol\((.*)\)[^)]+$/;
+	  defineProperty$2(symbolPrototype, 'description', {
+	    configurable: true,
+	    get: function description() {
+	      var symbol = isObject$1(this) ? this.valueOf() : this;
+	      var string = symbolToString.call(symbol);
+	      if (has$1(EmptyStringDescriptionStore, symbol)) return '';
+	      var desc = nativeSymbol ? string.slice(7, -1) : string.replace(regexp, '$1');
+	      return desc === '' ? undefined : desc;
+	    }
+	  });
+
+	  _export({ global: true, forced: true }, {
+	    Symbol: SymbolWrapper
+	  });
+	}
+
+	// `Symbol.species` well-known symbol
+	// https://tc39.es/ecma262/#sec-symbol.species
+	defineWellKnownSymbol('species');
+
+	// `Array[@@species]` getter
+	// https://tc39.es/ecma262/#sec-get-array-@@species
+	setSpecies('Array');
+
+	// `Array.prototype.fill` method
+	// https://tc39.es/ecma262/#sec-array.prototype.fill
+	_export({ target: 'Array', proto: true }, {
+	  fill: arrayFill
+	});
+
+	// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+	addToUnscopables('fill');
+
+	var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');
+
+	var SPECIES$1 = wellKnownSymbol('species');
+	var nativeSlice = [].slice;
+	var max = Math.max;
+
+	// `Array.prototype.slice` method
+	// https://tc39.es/ecma262/#sec-array.prototype.slice
+	// fallback for not array-like ES3 strings and DOM objects
+	_export({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
+	  slice: function slice(start, end) {
+	    var O = toIndexedObject(this);
+	    var length = toLength(O.length);
+	    var k = toAbsoluteIndex(start, length);
+	    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
+	    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
+	    var Constructor, result, n;
+	    if (isArray$3(O)) {
+	      Constructor = O.constructor;
+	      // cross-realm fallback
+	      if (isConstructor(Constructor) && (Constructor === Array || isArray$3(Constructor.prototype))) {
+	        Constructor = undefined;
+	      } else if (isObject$1(Constructor)) {
+	        Constructor = Constructor[SPECIES$1];
+	        if (Constructor === null) Constructor = undefined;
+	      }
+	      if (Constructor === Array || Constructor === undefined) {
+	        return nativeSlice.call(O, k, fin);
+	      }
+	    }
+	    result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));
+	    for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
+	    result.length = n;
+	    return result;
+	  }
+	});
+
+	var $includes = arrayIncludes.includes;
+
+
+	// `Array.prototype.includes` method
+	// https://tc39.es/ecma262/#sec-array.prototype.includes
+	_export({ target: 'Array', proto: true }, {
+	  includes: function includes(el /* , fromIndex = 0 */) {
+	    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
+	  }
+	});
+
+	// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
+	addToUnscopables('includes');
+
+	var notARegexp = function (it) {
+	  if (isRegexp(it)) {
+	    throw TypeError("The method doesn't accept regular expressions");
+	  } return it;
+	};
+
+	var MATCH = wellKnownSymbol('match');
+
+	var correctIsRegexpLogic = function (METHOD_NAME) {
+	  var regexp = /./;
+	  try {
+	    '/./'[METHOD_NAME](regexp);
+	  } catch (error1) {
+	    try {
+	      regexp[MATCH] = false;
+	      return '/./'[METHOD_NAME](regexp);
+	    } catch (error2) { /* empty */ }
+	  } return false;
+	};
+
+	// `String.prototype.includes` method
+	// https://tc39.es/ecma262/#sec-string.prototype.includes
+	_export({ target: 'String', proto: true, forced: !correctIsRegexpLogic('includes') }, {
+	  includes: function includes(searchString /* , position = 0 */) {
+	    return !!~toString_1(requireObjectCoercible(this))
+	      .indexOf(toString_1(notARegexp(searchString)), arguments.length > 1 ? arguments[1] : undefined);
+	  }
+	});
+
+	// `URL.prototype.toJSON` method
+	// https://url.spec.whatwg.org/#dom-url-tojson
+	_export({ target: 'URL', proto: true, enumerable: true }, {
+	  toJSON: function toJSON() {
+	    return URL.prototype.toString.call(this);
+	  }
+	});
+
+	var PROPER_FUNCTION_NAME = functionName.PROPER;
+
+
+
+	var non = '\u200B\u0085\u180E';
+
+	// check that a method works with the correct list
+	// of whitespaces and has a correct name
+	var stringTrimForced = function (METHOD_NAME) {
+	  return fails(function () {
+	    return !!whitespaces[METHOD_NAME]()
+	      || non[METHOD_NAME]() !== non
+	      || (PROPER_FUNCTION_NAME && whitespaces[METHOD_NAME].name !== METHOD_NAME);
+	  });
+	};
+
+	var $trim = stringTrim.trim;
+
+
+	// `String.prototype.trim` method
+	// https://tc39.es/ecma262/#sec-string.prototype.trim
+	_export({ target: 'String', proto: true, forced: stringTrimForced('trim') }, {
+	  trim: function trim() {
+	    return $trim(this);
+	  }
+	});
+
+	var lookup$1 = [];
+	var revLookup$1 = [];
+	var Arr$1 = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;
+	var inited$1 = false;
+
+	function init$1() {
+	  inited$1 = true;
+	  var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+	  for (var i = 0, len = code.length; i < len; ++i) {
+	    lookup$1[i] = code[i];
+	    revLookup$1[code.charCodeAt(i)] = i;
+	  }
+
+	  revLookup$1['-'.charCodeAt(0)] = 62;
+	  revLookup$1['_'.charCodeAt(0)] = 63;
+	}
+
+	function toByteArray$1(b64) {
+	  if (!inited$1) {
+	    init$1();
+	  }
+
+	  var i, j, l, tmp, placeHolders, arr;
+	  var len = b64.length;
+
+	  if (len % 4 > 0) {
+	    throw new Error('Invalid string. Length must be a multiple of 4');
+	  } // the number of equal signs (place holders)
+	  // if there are two placeholders, than the two characters before it
+	  // represent one byte
+	  // if there is only one, then the three characters before it represent 2 bytes
+	  // this is just a cheap hack to not do indexOf twice
+
+
+	  placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0; // base64 is 4/3 + up to two characters of the original data
+
+	  arr = new Arr$1(len * 3 / 4 - placeHolders); // if there are placeholders, only get up to the last complete 4 chars
+
+	  l = placeHolders > 0 ? len - 4 : len;
+	  var L = 0;
+
+	  for (i = 0, j = 0; i < l; i += 4, j += 3) {
+	    tmp = revLookup$1[b64.charCodeAt(i)] << 18 | revLookup$1[b64.charCodeAt(i + 1)] << 12 | revLookup$1[b64.charCodeAt(i + 2)] << 6 | revLookup$1[b64.charCodeAt(i + 3)];
+	    arr[L++] = tmp >> 16 & 0xFF;
+	    arr[L++] = tmp >> 8 & 0xFF;
+	    arr[L++] = tmp & 0xFF;
+	  }
+
+	  if (placeHolders === 2) {
+	    tmp = revLookup$1[b64.charCodeAt(i)] << 2 | revLookup$1[b64.charCodeAt(i + 1)] >> 4;
+	    arr[L++] = tmp & 0xFF;
+	  } else if (placeHolders === 1) {
+	    tmp = revLookup$1[b64.charCodeAt(i)] << 10 | revLookup$1[b64.charCodeAt(i + 1)] << 4 | revLookup$1[b64.charCodeAt(i + 2)] >> 2;
+	    arr[L++] = tmp >> 8 & 0xFF;
+	    arr[L++] = tmp & 0xFF;
+	  }
+
+	  return arr;
+	}
+
+	function tripletToBase64$1(num) {
+	  return lookup$1[num >> 18 & 0x3F] + lookup$1[num >> 12 & 0x3F] + lookup$1[num >> 6 & 0x3F] + lookup$1[num & 0x3F];
+	}
+
+	function encodeChunk$1(uint8, start, end) {
+	  var tmp;
+	  var output = [];
+
+	  for (var i = start; i < end; i += 3) {
+	    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + uint8[i + 2];
+	    output.push(tripletToBase64$1(tmp));
+	  }
+
+	  return output.join('');
+	}
+
+	function fromByteArray$1(uint8) {
+	  if (!inited$1) {
+	    init$1();
+	  }
+
+	  var tmp;
+	  var len = uint8.length;
+	  var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes
+
+	  var output = '';
+	  var parts = [];
+	  var maxChunkLength = 16383; // must be multiple of 3
+	  // go through the array every three bytes, we'll deal with trailing stuff later
+
+	  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+	    parts.push(encodeChunk$1(uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength));
+	  } // pad the end with zeros, but make sure to not forget the extra bytes
+
+
+	  if (extraBytes === 1) {
+	    tmp = uint8[len - 1];
+	    output += lookup$1[tmp >> 2];
+	    output += lookup$1[tmp << 4 & 0x3F];
+	    output += '==';
+	  } else if (extraBytes === 2) {
+	    tmp = (uint8[len - 2] << 8) + uint8[len - 1];
+	    output += lookup$1[tmp >> 10];
+	    output += lookup$1[tmp >> 4 & 0x3F];
+	    output += lookup$1[tmp << 2 & 0x3F];
+	    output += '=';
+	  }
+
+	  parts.push(output);
+	  return parts.join('');
+	}
+
+	function read$1(buffer, offset, isLE, mLen, nBytes) {
+	  var e, m;
+	  var eLen = nBytes * 8 - mLen - 1;
+	  var eMax = (1 << eLen) - 1;
+	  var eBias = eMax >> 1;
+	  var nBits = -7;
+	  var i = isLE ? nBytes - 1 : 0;
+	  var d = isLE ? -1 : 1;
+	  var s = buffer[offset + i];
+	  i += d;
+	  e = s & (1 << -nBits) - 1;
+	  s >>= -nBits;
+	  nBits += eLen;
+
+	  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+	  m = e & (1 << -nBits) - 1;
+	  e >>= -nBits;
+	  nBits += mLen;
+
+	  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+	  if (e === 0) {
+	    e = 1 - eBias;
+	  } else if (e === eMax) {
+	    return m ? NaN : (s ? -1 : 1) * Infinity;
+	  } else {
+	    m = m + Math.pow(2, mLen);
+	    e = e - eBias;
+	  }
+
+	  return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
+	}
+	function write$1(buffer, value, offset, isLE, mLen, nBytes) {
+	  var e, m, c;
+	  var eLen = nBytes * 8 - mLen - 1;
+	  var eMax = (1 << eLen) - 1;
+	  var eBias = eMax >> 1;
+	  var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;
+	  var i = isLE ? 0 : nBytes - 1;
+	  var d = isLE ? 1 : -1;
+	  var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;
+	  value = Math.abs(value);
+
+	  if (isNaN(value) || value === Infinity) {
+	    m = isNaN(value) ? 1 : 0;
+	    e = eMax;
+	  } else {
+	    e = Math.floor(Math.log(value) / Math.LN2);
+
+	    if (value * (c = Math.pow(2, -e)) < 1) {
+	      e--;
+	      c *= 2;
+	    }
+
+	    if (e + eBias >= 1) {
+	      value += rt / c;
+	    } else {
+	      value += rt * Math.pow(2, 1 - eBias);
+	    }
+
+	    if (value * c >= 2) {
+	      e++;
+	      c /= 2;
+	    }
+
+	    if (e + eBias >= eMax) {
+	      m = 0;
+	      e = eMax;
+	    } else if (e + eBias >= 1) {
+	      m = (value * c - 1) * Math.pow(2, mLen);
+	      e = e + eBias;
+	    } else {
+	      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
+	      e = 0;
+	    }
+	  }
+
+	  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+	  e = e << mLen | m;
+	  eLen += mLen;
+
+	  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+	  buffer[offset + i - d] |= s * 128;
+	}
+
+	var toString$2 = {}.toString;
+	var isArray$2 = Array.isArray || function (arr) {
+	  return toString$2.call(arr) == '[object Array]';
+	};
+
+	var INSPECT_MAX_BYTES$1 = 50;
+	/**
+	 * If `Buffer.TYPED_ARRAY_SUPPORT`:
+	 *   === true    Use Uint8Array implementation (fastest)
+	 *   === false   Use Object implementation (most compatible, even IE6)
+	 *
+	 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+	 * Opera 11.6+, iOS 4.2+.
+	 *
+	 * Due to various browser bugs, sometimes the Object implementation will be used even
+	 * when the browser supports typed arrays.
+	 *
+	 * Note:
+	 *
+	 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
+	 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
+	 *
+	 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
+	 *
+	 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
+	 *     incorrect length in some situations.
+
+	 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
+	 * get the Object implementation, which is slower but behaves correctly.
+	 */
+
+	Buffer$1.TYPED_ARRAY_SUPPORT = global$1.TYPED_ARRAY_SUPPORT !== undefined ? global$1.TYPED_ARRAY_SUPPORT : true;
+
+	function kMaxLength$1() {
+	  return Buffer$1.TYPED_ARRAY_SUPPORT ? 0x7fffffff : 0x3fffffff;
+	}
+
+	function createBuffer$1(that, length) {
+	  if (kMaxLength$1() < length) {
+	    throw new RangeError('Invalid typed array length');
+	  }
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    // Return an augmented `Uint8Array` instance, for best performance
+	    that = new Uint8Array(length);
+	    that.__proto__ = Buffer$1.prototype;
+	  } else {
+	    // Fallback: Return an object instance of the Buffer class
+	    if (that === null) {
+	      that = new Buffer$1(length);
+	    }
+
+	    that.length = length;
+	  }
+
+	  return that;
+	}
+	/**
+	 * The Buffer constructor returns instances of `Uint8Array` that have their
+	 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+	 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+	 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+	 * returns a single octet.
+	 *
+	 * The `Uint8Array` prototype remains unmodified.
+	 */
+
+
+	function Buffer$1(arg, encodingOrOffset, length) {
+	  if (!Buffer$1.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer$1)) {
+	    return new Buffer$1(arg, encodingOrOffset, length);
+	  } // Common case.
+
+
+	  if (typeof arg === 'number') {
+	    if (typeof encodingOrOffset === 'string') {
+	      throw new Error('If encoding is specified then the first argument must be a string');
+	    }
+
+	    return allocUnsafe$1(this, arg);
+	  }
+
+	  return from$1(this, arg, encodingOrOffset, length);
+	}
+	Buffer$1.poolSize = 8192; // not used by this implementation
+	// TODO: Legacy, not needed anymore. Remove in next major version.
+
+	Buffer$1._augment = function (arr) {
+	  arr.__proto__ = Buffer$1.prototype;
+	  return arr;
+	};
+
+	function from$1(that, value, encodingOrOffset, length) {
+	  if (typeof value === 'number') {
+	    throw new TypeError('"value" argument must not be a number');
+	  }
+
+	  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
+	    return fromArrayBuffer$1(that, value, encodingOrOffset, length);
+	  }
+
+	  if (typeof value === 'string') {
+	    return fromString$1(that, value, encodingOrOffset);
+	  }
+
+	  return fromObject$1(that, value);
+	}
+	/**
+	 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+	 * if value is a number.
+	 * Buffer.from(str[, encoding])
+	 * Buffer.from(array)
+	 * Buffer.from(buffer)
+	 * Buffer.from(arrayBuffer[, byteOffset[, length]])
+	 **/
+
+
+	Buffer$1.from = function (value, encodingOrOffset, length) {
+	  return from$1(null, value, encodingOrOffset, length);
+	};
+
+	if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	  Buffer$1.prototype.__proto__ = Uint8Array.prototype;
+	  Buffer$1.__proto__ = Uint8Array;
+	}
+
+	function assertSize$1(size) {
+	  if (typeof size !== 'number') {
+	    throw new TypeError('"size" argument must be a number');
+	  } else if (size < 0) {
+	    throw new RangeError('"size" argument must not be negative');
+	  }
+	}
+
+	function alloc$1(that, size, fill, encoding) {
+	  assertSize$1(size);
+
+	  if (size <= 0) {
+	    return createBuffer$1(that, size);
+	  }
+
+	  if (fill !== undefined) {
+	    // Only pay attention to encoding if it's a string. This
+	    // prevents accidentally sending in a number that would
+	    // be interpretted as a start offset.
+	    return typeof encoding === 'string' ? createBuffer$1(that, size).fill(fill, encoding) : createBuffer$1(that, size).fill(fill);
+	  }
+
+	  return createBuffer$1(that, size);
+	}
+	/**
+	 * Creates a new filled Buffer instance.
+	 * alloc(size[, fill[, encoding]])
+	 **/
+
+
+	Buffer$1.alloc = function (size, fill, encoding) {
+	  return alloc$1(null, size, fill, encoding);
+	};
+
+	function allocUnsafe$1(that, size) {
+	  assertSize$1(size);
+	  that = createBuffer$1(that, size < 0 ? 0 : checked$1(size) | 0);
+
+	  if (!Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    for (var i = 0; i < size; ++i) {
+	      that[i] = 0;
+	    }
+	  }
+
+	  return that;
+	}
+	/**
+	 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+	 * */
+
+
+	Buffer$1.allocUnsafe = function (size) {
+	  return allocUnsafe$1(null, size);
+	};
+	/**
+	 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+	 */
+
+
+	Buffer$1.allocUnsafeSlow = function (size) {
+	  return allocUnsafe$1(null, size);
+	};
+
+	function fromString$1(that, string, encoding) {
+	  if (typeof encoding !== 'string' || encoding === '') {
+	    encoding = 'utf8';
+	  }
+
+	  if (!Buffer$1.isEncoding(encoding)) {
+	    throw new TypeError('"encoding" must be a valid string encoding');
+	  }
+
+	  var length = byteLength$1(string, encoding) | 0;
+	  that = createBuffer$1(that, length);
+	  var actual = that.write(string, encoding);
+
+	  if (actual !== length) {
+	    // Writing a hex string, for example, that contains invalid characters will
+	    // cause everything after the first invalid character to be ignored. (e.g.
+	    // 'abxxcd' will be treated as 'ab')
+	    that = that.slice(0, actual);
+	  }
+
+	  return that;
+	}
+
+	function fromArrayLike$1(that, array) {
+	  var length = array.length < 0 ? 0 : checked$1(array.length) | 0;
+	  that = createBuffer$1(that, length);
+
+	  for (var i = 0; i < length; i += 1) {
+	    that[i] = array[i] & 255;
+	  }
+
+	  return that;
+	}
+
+	function fromArrayBuffer$1(that, array, byteOffset, length) {
+	  array.byteLength; // this throws if `array` is not a valid ArrayBuffer
+
+	  if (byteOffset < 0 || array.byteLength < byteOffset) {
+	    throw new RangeError('\'offset\' is out of bounds');
+	  }
+
+	  if (array.byteLength < byteOffset + (length || 0)) {
+	    throw new RangeError('\'length\' is out of bounds');
+	  }
+
+	  if (byteOffset === undefined && length === undefined) {
+	    array = new Uint8Array(array);
+	  } else if (length === undefined) {
+	    array = new Uint8Array(array, byteOffset);
+	  } else {
+	    array = new Uint8Array(array, byteOffset, length);
+	  }
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    // Return an augmented `Uint8Array` instance, for best performance
+	    that = array;
+	    that.__proto__ = Buffer$1.prototype;
+	  } else {
+	    // Fallback: Return an object instance of the Buffer class
+	    that = fromArrayLike$1(that, array);
+	  }
+
+	  return that;
+	}
+
+	function fromObject$1(that, obj) {
+	  if (internalIsBuffer$1(obj)) {
+	    var len = checked$1(obj.length) | 0;
+	    that = createBuffer$1(that, len);
+
+	    if (that.length === 0) {
+	      return that;
+	    }
+
+	    obj.copy(that, 0, 0, len);
+	    return that;
+	  }
+
+	  if (obj) {
+	    if (typeof ArrayBuffer !== 'undefined' && obj.buffer instanceof ArrayBuffer || 'length' in obj) {
+	      if (typeof obj.length !== 'number' || isnan$1(obj.length)) {
+	        return createBuffer$1(that, 0);
+	      }
+
+	      return fromArrayLike$1(that, obj);
+	    }
+
+	    if (obj.type === 'Buffer' && isArray$2(obj.data)) {
+	      return fromArrayLike$1(that, obj.data);
+	    }
+	  }
+
+	  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.');
+	}
+
+	function checked$1(length) {
+	  // Note: cannot use `length < kMaxLength()` here because that fails when
+	  // length is NaN (which is otherwise coerced to zero.)
+	  if (length >= kMaxLength$1()) {
+	    throw new RangeError('Attempt to allocate Buffer larger than maximum ' + 'size: 0x' + kMaxLength$1().toString(16) + ' bytes');
+	  }
+
+	  return length | 0;
+	}
+	Buffer$1.isBuffer = isBuffer$2;
+
+	function internalIsBuffer$1(b) {
+	  return !!(b != null && b._isBuffer);
+	}
+
+	Buffer$1.compare = function compare(a, b) {
+	  if (!internalIsBuffer$1(a) || !internalIsBuffer$1(b)) {
+	    throw new TypeError('Arguments must be Buffers');
+	  }
+
+	  if (a === b) return 0;
+	  var x = a.length;
+	  var y = b.length;
+
+	  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+	    if (a[i] !== b[i]) {
+	      x = a[i];
+	      y = b[i];
+	      break;
+	    }
+	  }
+
+	  if (x < y) return -1;
+	  if (y < x) return 1;
+	  return 0;
+	};
+
+	Buffer$1.isEncoding = function isEncoding(encoding) {
+	  switch (String(encoding).toLowerCase()) {
+	    case 'hex':
+	    case 'utf8':
+	    case 'utf-8':
+	    case 'ascii':
+	    case 'latin1':
+	    case 'binary':
+	    case 'base64':
+	    case 'ucs2':
+	    case 'ucs-2':
+	    case 'utf16le':
+	    case 'utf-16le':
+	      return true;
+
+	    default:
+	      return false;
+	  }
+	};
+
+	Buffer$1.concat = function concat(list, length) {
+	  if (!isArray$2(list)) {
+	    throw new TypeError('"list" argument must be an Array of Buffers');
+	  }
+
+	  if (list.length === 0) {
+	    return Buffer$1.alloc(0);
+	  }
+
+	  var i;
+
+	  if (length === undefined) {
+	    length = 0;
+
+	    for (i = 0; i < list.length; ++i) {
+	      length += list[i].length;
+	    }
+	  }
+
+	  var buffer = Buffer$1.allocUnsafe(length);
+	  var pos = 0;
+
+	  for (i = 0; i < list.length; ++i) {
+	    var buf = list[i];
+
+	    if (!internalIsBuffer$1(buf)) {
+	      throw new TypeError('"list" argument must be an Array of Buffers');
+	    }
+
+	    buf.copy(buffer, pos);
+	    pos += buf.length;
+	  }
+
+	  return buffer;
+	};
+
+	function byteLength$1(string, encoding) {
+	  if (internalIsBuffer$1(string)) {
+	    return string.length;
+	  }
+
+	  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' && (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
+	    return string.byteLength;
+	  }
+
+	  if (typeof string !== 'string') {
+	    string = '' + string;
+	  }
+
+	  var len = string.length;
+	  if (len === 0) return 0; // Use a for loop to avoid recursion
+
+	  var loweredCase = false;
+
+	  for (;;) {
+	    switch (encoding) {
+	      case 'ascii':
+	      case 'latin1':
+	      case 'binary':
+	        return len;
+
+	      case 'utf8':
+	      case 'utf-8':
+	      case undefined:
+	        return utf8ToBytes$1(string).length;
+
+	      case 'ucs2':
+	      case 'ucs-2':
+	      case 'utf16le':
+	      case 'utf-16le':
+	        return len * 2;
+
+	      case 'hex':
+	        return len >>> 1;
+
+	      case 'base64':
+	        return base64ToBytes$1(string).length;
+
+	      default:
+	        if (loweredCase) return utf8ToBytes$1(string).length; // assume utf8
+
+	        encoding = ('' + encoding).toLowerCase();
+	        loweredCase = true;
+	    }
+	  }
+	}
+
+	Buffer$1.byteLength = byteLength$1;
+
+	function slowToString$1(encoding, start, end) {
+	  var loweredCase = false; // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+	  // property of a typed array.
+	  // This behaves neither like String nor Uint8Array in that we set start/end
+	  // to their upper/lower bounds if the value passed is out of range.
+	  // undefined is handled specially as per ECMA-262 6th Edition,
+	  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+
+	  if (start === undefined || start < 0) {
+	    start = 0;
+	  } // Return early if start > this.length. Done here to prevent potential uint32
+	  // coercion fail below.
+
+
+	  if (start > this.length) {
+	    return '';
+	  }
+
+	  if (end === undefined || end > this.length) {
+	    end = this.length;
+	  }
+
+	  if (end <= 0) {
+	    return '';
+	  } // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+
+
+	  end >>>= 0;
+	  start >>>= 0;
+
+	  if (end <= start) {
+	    return '';
+	  }
+
+	  if (!encoding) encoding = 'utf8';
+
+	  while (true) {
+	    switch (encoding) {
+	      case 'hex':
+	        return hexSlice$1(this, start, end);
+
+	      case 'utf8':
+	      case 'utf-8':
+	        return utf8Slice$1(this, start, end);
+
+	      case 'ascii':
+	        return asciiSlice$1(this, start, end);
+
+	      case 'latin1':
+	      case 'binary':
+	        return latin1Slice$1(this, start, end);
+
+	      case 'base64':
+	        return base64Slice$1(this, start, end);
+
+	      case 'ucs2':
+	      case 'ucs-2':
+	      case 'utf16le':
+	      case 'utf-16le':
+	        return utf16leSlice$1(this, start, end);
+
+	      default:
+	        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);
+	        encoding = (encoding + '').toLowerCase();
+	        loweredCase = true;
+	    }
+	  }
+	} // The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
+	// Buffer instances.
+
+
+	Buffer$1.prototype._isBuffer = true;
+
+	function swap$1(b, n, m) {
+	  var i = b[n];
+	  b[n] = b[m];
+	  b[m] = i;
+	}
+
+	Buffer$1.prototype.swap16 = function swap16() {
+	  var len = this.length;
+
+	  if (len % 2 !== 0) {
+	    throw new RangeError('Buffer size must be a multiple of 16-bits');
+	  }
+
+	  for (var i = 0; i < len; i += 2) {
+	    swap$1(this, i, i + 1);
+	  }
+
+	  return this;
+	};
+
+	Buffer$1.prototype.swap32 = function swap32() {
+	  var len = this.length;
+
+	  if (len % 4 !== 0) {
+	    throw new RangeError('Buffer size must be a multiple of 32-bits');
+	  }
+
+	  for (var i = 0; i < len; i += 4) {
+	    swap$1(this, i, i + 3);
+	    swap$1(this, i + 1, i + 2);
+	  }
+
+	  return this;
+	};
+
+	Buffer$1.prototype.swap64 = function swap64() {
+	  var len = this.length;
+
+	  if (len % 8 !== 0) {
+	    throw new RangeError('Buffer size must be a multiple of 64-bits');
+	  }
+
+	  for (var i = 0; i < len; i += 8) {
+	    swap$1(this, i, i + 7);
+	    swap$1(this, i + 1, i + 6);
+	    swap$1(this, i + 2, i + 5);
+	    swap$1(this, i + 3, i + 4);
+	  }
+
+	  return this;
+	};
+
+	Buffer$1.prototype.toString = function toString() {
+	  var length = this.length | 0;
+	  if (length === 0) return '';
+	  if (arguments.length === 0) return utf8Slice$1(this, 0, length);
+	  return slowToString$1.apply(this, arguments);
+	};
+
+	Buffer$1.prototype.equals = function equals(b) {
+	  if (!internalIsBuffer$1(b)) throw new TypeError('Argument must be a Buffer');
+	  if (this === b) return true;
+	  return Buffer$1.compare(this, b) === 0;
+	};
+
+	Buffer$1.prototype.inspect = function inspect() {
+	  var str = '';
+	  var max = INSPECT_MAX_BYTES$1;
+
+	  if (this.length > 0) {
+	    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ');
+	    if (this.length > max) str += ' ... ';
+	  }
+
+	  return '<Buffer ' + str + '>';
+	};
+
+	Buffer$1.prototype.compare = function compare(target, start, end, thisStart, thisEnd) {
+	  if (!internalIsBuffer$1(target)) {
+	    throw new TypeError('Argument must be a Buffer');
+	  }
+
+	  if (start === undefined) {
+	    start = 0;
+	  }
+
+	  if (end === undefined) {
+	    end = target ? target.length : 0;
+	  }
+
+	  if (thisStart === undefined) {
+	    thisStart = 0;
+	  }
+
+	  if (thisEnd === undefined) {
+	    thisEnd = this.length;
+	  }
+
+	  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+	    throw new RangeError('out of range index');
+	  }
+
+	  if (thisStart >= thisEnd && start >= end) {
+	    return 0;
+	  }
+
+	  if (thisStart >= thisEnd) {
+	    return -1;
+	  }
+
+	  if (start >= end) {
+	    return 1;
+	  }
+
+	  start >>>= 0;
+	  end >>>= 0;
+	  thisStart >>>= 0;
+	  thisEnd >>>= 0;
+	  if (this === target) return 0;
+	  var x = thisEnd - thisStart;
+	  var y = end - start;
+	  var len = Math.min(x, y);
+	  var thisCopy = this.slice(thisStart, thisEnd);
+	  var targetCopy = target.slice(start, end);
+
+	  for (var i = 0; i < len; ++i) {
+	    if (thisCopy[i] !== targetCopy[i]) {
+	      x = thisCopy[i];
+	      y = targetCopy[i];
+	      break;
+	    }
+	  }
+
+	  if (x < y) return -1;
+	  if (y < x) return 1;
+	  return 0;
+	}; // Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+	// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+	//
+	// Arguments:
+	// - buffer - a Buffer to search
+	// - val - a string, Buffer, or number
+	// - byteOffset - an index into `buffer`; will be clamped to an int32
+	// - encoding - an optional encoding, relevant is val is a string
+	// - dir - true for indexOf, false for lastIndexOf
+
+
+	function bidirectionalIndexOf$1(buffer, val, byteOffset, encoding, dir) {
+	  // Empty buffer means no match
+	  if (buffer.length === 0) return -1; // Normalize byteOffset
+
+	  if (typeof byteOffset === 'string') {
+	    encoding = byteOffset;
+	    byteOffset = 0;
+	  } else if (byteOffset > 0x7fffffff) {
+	    byteOffset = 0x7fffffff;
+	  } else if (byteOffset < -0x80000000) {
+	    byteOffset = -0x80000000;
+	  }
+
+	  byteOffset = +byteOffset; // Coerce to Number.
+
+	  if (isNaN(byteOffset)) {
+	    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+	    byteOffset = dir ? 0 : buffer.length - 1;
+	  } // Normalize byteOffset: negative offsets start from the end of the buffer
+
+
+	  if (byteOffset < 0) byteOffset = buffer.length + byteOffset;
+
+	  if (byteOffset >= buffer.length) {
+	    if (dir) return -1;else byteOffset = buffer.length - 1;
+	  } else if (byteOffset < 0) {
+	    if (dir) byteOffset = 0;else return -1;
+	  } // Normalize val
+
+
+	  if (typeof val === 'string') {
+	    val = Buffer$1.from(val, encoding);
+	  } // Finally, search either indexOf (if dir is true) or lastIndexOf
+
+
+	  if (internalIsBuffer$1(val)) {
+	    // Special case: looking for empty string/buffer always fails
+	    if (val.length === 0) {
+	      return -1;
+	    }
+
+	    return arrayIndexOf$1(buffer, val, byteOffset, encoding, dir);
+	  } else if (typeof val === 'number') {
+	    val = val & 0xFF; // Search for a byte value [0-255]
+
+	    if (Buffer$1.TYPED_ARRAY_SUPPORT && typeof Uint8Array.prototype.indexOf === 'function') {
+	      if (dir) {
+	        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset);
+	      } else {
+	        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);
+	      }
+	    }
+
+	    return arrayIndexOf$1(buffer, [val], byteOffset, encoding, dir);
+	  }
+
+	  throw new TypeError('val must be string, number or Buffer');
+	}
+
+	function arrayIndexOf$1(arr, val, byteOffset, encoding, dir) {
+	  var indexSize = 1;
+	  var arrLength = arr.length;
+	  var valLength = val.length;
+
+	  if (encoding !== undefined) {
+	    encoding = String(encoding).toLowerCase();
+
+	    if (encoding === 'ucs2' || encoding === 'ucs-2' || encoding === 'utf16le' || encoding === 'utf-16le') {
+	      if (arr.length < 2 || val.length < 2) {
+	        return -1;
+	      }
+
+	      indexSize = 2;
+	      arrLength /= 2;
+	      valLength /= 2;
+	      byteOffset /= 2;
+	    }
+	  }
+
+	  function read(buf, i) {
+	    if (indexSize === 1) {
+	      return buf[i];
+	    } else {
+	      return buf.readUInt16BE(i * indexSize);
+	    }
+	  }
+
+	  var i;
+
+	  if (dir) {
+	    var foundIndex = -1;
+
+	    for (i = byteOffset; i < arrLength; i++) {
+	      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+	        if (foundIndex === -1) foundIndex = i;
+	        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize;
+	      } else {
+	        if (foundIndex !== -1) i -= i - foundIndex;
+	        foundIndex = -1;
+	      }
+	    }
+	  } else {
+	    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;
+
+	    for (i = byteOffset; i >= 0; i--) {
+	      var found = true;
+
+	      for (var j = 0; j < valLength; j++) {
+	        if (read(arr, i + j) !== read(val, j)) {
+	          found = false;
+	          break;
+	        }
+	      }
+
+	      if (found) return i;
+	    }
+	  }
+
+	  return -1;
+	}
+
+	Buffer$1.prototype.includes = function includes(val, byteOffset, encoding) {
+	  return this.indexOf(val, byteOffset, encoding) !== -1;
+	};
+
+	Buffer$1.prototype.indexOf = function indexOf(val, byteOffset, encoding) {
+	  return bidirectionalIndexOf$1(this, val, byteOffset, encoding, true);
+	};
+
+	Buffer$1.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {
+	  return bidirectionalIndexOf$1(this, val, byteOffset, encoding, false);
+	};
+
+	function hexWrite$1(buf, string, offset, length) {
+	  offset = Number(offset) || 0;
+	  var remaining = buf.length - offset;
+
+	  if (!length) {
+	    length = remaining;
+	  } else {
+	    length = Number(length);
+
+	    if (length > remaining) {
+	      length = remaining;
+	    }
+	  } // must be an even number of digits
+
+
+	  var strLen = string.length;
+	  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string');
+
+	  if (length > strLen / 2) {
+	    length = strLen / 2;
+	  }
+
+	  for (var i = 0; i < length; ++i) {
+	    var parsed = parseInt(string.substr(i * 2, 2), 16);
+	    if (isNaN(parsed)) return i;
+	    buf[offset + i] = parsed;
+	  }
+
+	  return i;
+	}
+
+	function utf8Write$1(buf, string, offset, length) {
+	  return blitBuffer$1(utf8ToBytes$1(string, buf.length - offset), buf, offset, length);
+	}
+
+	function asciiWrite$1(buf, string, offset, length) {
+	  return blitBuffer$1(asciiToBytes$1(string), buf, offset, length);
+	}
+
+	function latin1Write$1(buf, string, offset, length) {
+	  return asciiWrite$1(buf, string, offset, length);
+	}
+
+	function base64Write$1(buf, string, offset, length) {
+	  return blitBuffer$1(base64ToBytes$1(string), buf, offset, length);
+	}
+
+	function ucs2Write$1(buf, string, offset, length) {
+	  return blitBuffer$1(utf16leToBytes$1(string, buf.length - offset), buf, offset, length);
+	}
+
+	Buffer$1.prototype.write = function write(string, offset, length, encoding) {
+	  // Buffer#write(string)
+	  if (offset === undefined) {
+	    encoding = 'utf8';
+	    length = this.length;
+	    offset = 0; // Buffer#write(string, encoding)
+	  } else if (length === undefined && typeof offset === 'string') {
+	    encoding = offset;
+	    length = this.length;
+	    offset = 0; // Buffer#write(string, offset[, length][, encoding])
+	  } else if (isFinite(offset)) {
+	    offset = offset | 0;
+
+	    if (isFinite(length)) {
+	      length = length | 0;
+	      if (encoding === undefined) encoding = 'utf8';
+	    } else {
+	      encoding = length;
+	      length = undefined;
+	    } // legacy write(string, encoding, offset, length) - remove in v0.13
+
+	  } else {
+	    throw new Error('Buffer.write(string, encoding, offset[, length]) is no longer supported');
+	  }
+
+	  var remaining = this.length - offset;
+	  if (length === undefined || length > remaining) length = remaining;
+
+	  if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {
+	    throw new RangeError('Attempt to write outside buffer bounds');
+	  }
+
+	  if (!encoding) encoding = 'utf8';
+	  var loweredCase = false;
+
+	  for (;;) {
+	    switch (encoding) {
+	      case 'hex':
+	        return hexWrite$1(this, string, offset, length);
+
+	      case 'utf8':
+	      case 'utf-8':
+	        return utf8Write$1(this, string, offset, length);
+
+	      case 'ascii':
+	        return asciiWrite$1(this, string, offset, length);
+
+	      case 'latin1':
+	      case 'binary':
+	        return latin1Write$1(this, string, offset, length);
+
+	      case 'base64':
+	        // Warning: maxLength not taken into account in base64Write
+	        return base64Write$1(this, string, offset, length);
+
+	      case 'ucs2':
+	      case 'ucs-2':
+	      case 'utf16le':
+	      case 'utf-16le':
+	        return ucs2Write$1(this, string, offset, length);
+
+	      default:
+	        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);
+	        encoding = ('' + encoding).toLowerCase();
+	        loweredCase = true;
+	    }
+	  }
+	};
+
+	Buffer$1.prototype.toJSON = function toJSON() {
+	  return {
+	    type: 'Buffer',
+	    data: Array.prototype.slice.call(this._arr || this, 0)
+	  };
+	};
+
+	function base64Slice$1(buf, start, end) {
+	  if (start === 0 && end === buf.length) {
+	    return fromByteArray$1(buf);
+	  } else {
+	    return fromByteArray$1(buf.slice(start, end));
+	  }
+	}
+
+	function utf8Slice$1(buf, start, end) {
+	  end = Math.min(buf.length, end);
+	  var res = [];
+	  var i = start;
+
+	  while (i < end) {
+	    var firstByte = buf[i];
+	    var codePoint = null;
+	    var bytesPerSequence = firstByte > 0xEF ? 4 : firstByte > 0xDF ? 3 : firstByte > 0xBF ? 2 : 1;
+
+	    if (i + bytesPerSequence <= end) {
+	      var secondByte, thirdByte, fourthByte, tempCodePoint;
+
+	      switch (bytesPerSequence) {
+	        case 1:
+	          if (firstByte < 0x80) {
+	            codePoint = firstByte;
+	          }
+
+	          break;
+
+	        case 2:
+	          secondByte = buf[i + 1];
+
+	          if ((secondByte & 0xC0) === 0x80) {
+	            tempCodePoint = (firstByte & 0x1F) << 0x6 | secondByte & 0x3F;
+
+	            if (tempCodePoint > 0x7F) {
+	              codePoint = tempCodePoint;
+	            }
+	          }
+
+	          break;
+
+	        case 3:
+	          secondByte = buf[i + 1];
+	          thirdByte = buf[i + 2];
+
+	          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+	            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | thirdByte & 0x3F;
+
+	            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+	              codePoint = tempCodePoint;
+	            }
+	          }
+
+	          break;
+
+	        case 4:
+	          secondByte = buf[i + 1];
+	          thirdByte = buf[i + 2];
+	          fourthByte = buf[i + 3];
+
+	          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+	            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | fourthByte & 0x3F;
+
+	            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+	              codePoint = tempCodePoint;
+	            }
+	          }
+
+	      }
+	    }
+
+	    if (codePoint === null) {
+	      // we did not generate a valid codePoint so insert a
+	      // replacement char (U+FFFD) and advance only 1 byte
+	      codePoint = 0xFFFD;
+	      bytesPerSequence = 1;
+	    } else if (codePoint > 0xFFFF) {
+	      // encode to utf16 (surrogate pair dance)
+	      codePoint -= 0x10000;
+	      res.push(codePoint >>> 10 & 0x3FF | 0xD800);
+	      codePoint = 0xDC00 | codePoint & 0x3FF;
+	    }
+
+	    res.push(codePoint);
+	    i += bytesPerSequence;
+	  }
+
+	  return decodeCodePointsArray$1(res);
+	} // Based on http://stackoverflow.com/a/22747272/680742, the browser with
+	// the lowest limit is Chrome, with 0x10000 args.
+	// We go 1 magnitude less, for safety
+
+
+	var MAX_ARGUMENTS_LENGTH$1 = 0x1000;
+
+	function decodeCodePointsArray$1(codePoints) {
+	  var len = codePoints.length;
+
+	  if (len <= MAX_ARGUMENTS_LENGTH$1) {
+	    return String.fromCharCode.apply(String, codePoints); // avoid extra slice()
+	  } // Decode in chunks to avoid "call stack size exceeded".
+
+
+	  var res = '';
+	  var i = 0;
+
+	  while (i < len) {
+	    res += String.fromCharCode.apply(String, codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH$1));
+	  }
+
+	  return res;
+	}
+
+	function asciiSlice$1(buf, start, end) {
+	  var ret = '';
+	  end = Math.min(buf.length, end);
+
+	  for (var i = start; i < end; ++i) {
+	    ret += String.fromCharCode(buf[i] & 0x7F);
+	  }
+
+	  return ret;
+	}
+
+	function latin1Slice$1(buf, start, end) {
+	  var ret = '';
+	  end = Math.min(buf.length, end);
+
+	  for (var i = start; i < end; ++i) {
+	    ret += String.fromCharCode(buf[i]);
+	  }
+
+	  return ret;
+	}
+
+	function hexSlice$1(buf, start, end) {
+	  var len = buf.length;
+	  if (!start || start < 0) start = 0;
+	  if (!end || end < 0 || end > len) end = len;
+	  var out = '';
+
+	  for (var i = start; i < end; ++i) {
+	    out += toHex$1(buf[i]);
+	  }
+
+	  return out;
+	}
+
+	function utf16leSlice$1(buf, start, end) {
+	  var bytes = buf.slice(start, end);
+	  var res = '';
+
+	  for (var i = 0; i < bytes.length; i += 2) {
+	    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
+	  }
+
+	  return res;
+	}
+
+	Buffer$1.prototype.slice = function slice(start, end) {
+	  var len = this.length;
+	  start = ~~start;
+	  end = end === undefined ? len : ~~end;
+
+	  if (start < 0) {
+	    start += len;
+	    if (start < 0) start = 0;
+	  } else if (start > len) {
+	    start = len;
+	  }
+
+	  if (end < 0) {
+	    end += len;
+	    if (end < 0) end = 0;
+	  } else if (end > len) {
+	    end = len;
+	  }
+
+	  if (end < start) end = start;
+	  var newBuf;
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    newBuf = this.subarray(start, end);
+	    newBuf.__proto__ = Buffer$1.prototype;
+	  } else {
+	    var sliceLen = end - start;
+	    newBuf = new Buffer$1(sliceLen, undefined);
+
+	    for (var i = 0; i < sliceLen; ++i) {
+	      newBuf[i] = this[i + start];
+	    }
+	  }
+
+	  return newBuf;
+	};
+	/*
+	 * Need to make sure that buffer isn't trying to write out of bounds.
+	 */
+
+
+	function checkOffset$1(offset, ext, length) {
+	  if (offset % 1 !== 0 || offset < 0) throw new RangeError('offset is not uint');
+	  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length');
+	}
+
+	Buffer$1.prototype.readUIntLE = function readUIntLE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+	  if (!noAssert) checkOffset$1(offset, byteLength, this.length);
+	  var val = this[offset];
+	  var mul = 1;
+	  var i = 0;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    val += this[offset + i] * mul;
+	  }
+
+	  return val;
+	};
+
+	Buffer$1.prototype.readUIntBE = function readUIntBE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+
+	  if (!noAssert) {
+	    checkOffset$1(offset, byteLength, this.length);
+	  }
+
+	  var val = this[offset + --byteLength];
+	  var mul = 1;
+
+	  while (byteLength > 0 && (mul *= 0x100)) {
+	    val += this[offset + --byteLength] * mul;
+	  }
+
+	  return val;
+	};
+
+	Buffer$1.prototype.readUInt8 = function readUInt8(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 1, this.length);
+	  return this[offset];
+	};
+
+	Buffer$1.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 2, this.length);
+	  return this[offset] | this[offset + 1] << 8;
+	};
+
+	Buffer$1.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 2, this.length);
+	  return this[offset] << 8 | this[offset + 1];
+	};
+
+	Buffer$1.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 4, this.length);
+	  return (this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16) + this[offset + 3] * 0x1000000;
+	};
+
+	Buffer$1.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 4, this.length);
+	  return this[offset] * 0x1000000 + (this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3]);
+	};
+
+	Buffer$1.prototype.readIntLE = function readIntLE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+	  if (!noAssert) checkOffset$1(offset, byteLength, this.length);
+	  var val = this[offset];
+	  var mul = 1;
+	  var i = 0;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    val += this[offset + i] * mul;
+	  }
+
+	  mul *= 0x80;
+	  if (val >= mul) val -= Math.pow(2, 8 * byteLength);
+	  return val;
+	};
+
+	Buffer$1.prototype.readIntBE = function readIntBE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+	  if (!noAssert) checkOffset$1(offset, byteLength, this.length);
+	  var i = byteLength;
+	  var mul = 1;
+	  var val = this[offset + --i];
+
+	  while (i > 0 && (mul *= 0x100)) {
+	    val += this[offset + --i] * mul;
+	  }
+
+	  mul *= 0x80;
+	  if (val >= mul) val -= Math.pow(2, 8 * byteLength);
+	  return val;
+	};
+
+	Buffer$1.prototype.readInt8 = function readInt8(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 1, this.length);
+	  if (!(this[offset] & 0x80)) return this[offset];
+	  return (0xff - this[offset] + 1) * -1;
+	};
+
+	Buffer$1.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 2, this.length);
+	  var val = this[offset] | this[offset + 1] << 8;
+	  return val & 0x8000 ? val | 0xFFFF0000 : val;
+	};
+
+	Buffer$1.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 2, this.length);
+	  var val = this[offset + 1] | this[offset] << 8;
+	  return val & 0x8000 ? val | 0xFFFF0000 : val;
+	};
+
+	Buffer$1.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 4, this.length);
+	  return this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16 | this[offset + 3] << 24;
+	};
+
+	Buffer$1.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 4, this.length);
+	  return this[offset] << 24 | this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3];
+	};
+
+	Buffer$1.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 4, this.length);
+	  return read$1(this, offset, true, 23, 4);
+	};
+
+	Buffer$1.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 4, this.length);
+	  return read$1(this, offset, false, 23, 4);
+	};
+
+	Buffer$1.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 8, this.length);
+	  return read$1(this, offset, true, 52, 8);
+	};
+
+	Buffer$1.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
+	  if (!noAssert) checkOffset$1(offset, 8, this.length);
+	  return read$1(this, offset, false, 52, 8);
+	};
+
+	function checkInt$1(buf, value, offset, ext, max, min) {
+	  if (!internalIsBuffer$1(buf)) throw new TypeError('"buffer" argument must be a Buffer instance');
+	  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds');
+	  if (offset + ext > buf.length) throw new RangeError('Index out of range');
+	}
+
+	Buffer$1.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+
+	  if (!noAssert) {
+	    var maxBytes = Math.pow(2, 8 * byteLength) - 1;
+	    checkInt$1(this, value, offset, byteLength, maxBytes, 0);
+	  }
+
+	  var mul = 1;
+	  var i = 0;
+	  this[offset] = value & 0xFF;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    this[offset + i] = value / mul & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer$1.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+
+	  if (!noAssert) {
+	    var maxBytes = Math.pow(2, 8 * byteLength) - 1;
+	    checkInt$1(this, value, offset, byteLength, maxBytes, 0);
+	  }
+
+	  var i = byteLength - 1;
+	  var mul = 1;
+	  this[offset + i] = value & 0xFF;
+
+	  while (--i >= 0 && (mul *= 0x100)) {
+	    this[offset + i] = value / mul & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer$1.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 1, 0xff, 0);
+	  if (!Buffer$1.TYPED_ARRAY_SUPPORT) value = Math.floor(value);
+	  this[offset] = value & 0xff;
+	  return offset + 1;
+	};
+
+	function objectWriteUInt16$1(buf, value, offset, littleEndian) {
+	  if (value < 0) value = 0xffff + value + 1;
+
+	  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
+	    buf[offset + i] = (value & 0xff << 8 * (littleEndian ? i : 1 - i)) >>> (littleEndian ? i : 1 - i) * 8;
+	  }
+	}
+
+	Buffer$1.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 2, 0xffff, 0);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value & 0xff;
+	    this[offset + 1] = value >>> 8;
+	  } else {
+	    objectWriteUInt16$1(this, value, offset, true);
+	  }
+
+	  return offset + 2;
+	};
+
+	Buffer$1.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 2, 0xffff, 0);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 8;
+	    this[offset + 1] = value & 0xff;
+	  } else {
+	    objectWriteUInt16$1(this, value, offset, false);
+	  }
+
+	  return offset + 2;
+	};
+
+	function objectWriteUInt32$1(buf, value, offset, littleEndian) {
+	  if (value < 0) value = 0xffffffff + value + 1;
+
+	  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
+	    buf[offset + i] = value >>> (littleEndian ? i : 3 - i) * 8 & 0xff;
+	  }
+	}
+
+	Buffer$1.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 4, 0xffffffff, 0);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset + 3] = value >>> 24;
+	    this[offset + 2] = value >>> 16;
+	    this[offset + 1] = value >>> 8;
+	    this[offset] = value & 0xff;
+	  } else {
+	    objectWriteUInt32$1(this, value, offset, true);
+	  }
+
+	  return offset + 4;
+	};
+
+	Buffer$1.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 4, 0xffffffff, 0);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 24;
+	    this[offset + 1] = value >>> 16;
+	    this[offset + 2] = value >>> 8;
+	    this[offset + 3] = value & 0xff;
+	  } else {
+	    objectWriteUInt32$1(this, value, offset, false);
+	  }
+
+	  return offset + 4;
+	};
+
+	Buffer$1.prototype.writeIntLE = function writeIntLE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+
+	  if (!noAssert) {
+	    var limit = Math.pow(2, 8 * byteLength - 1);
+	    checkInt$1(this, value, offset, byteLength, limit - 1, -limit);
+	  }
+
+	  var i = 0;
+	  var mul = 1;
+	  var sub = 0;
+	  this[offset] = value & 0xFF;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+	      sub = 1;
+	    }
+
+	    this[offset + i] = (value / mul >> 0) - sub & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer$1.prototype.writeIntBE = function writeIntBE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+
+	  if (!noAssert) {
+	    var limit = Math.pow(2, 8 * byteLength - 1);
+	    checkInt$1(this, value, offset, byteLength, limit - 1, -limit);
+	  }
+
+	  var i = byteLength - 1;
+	  var mul = 1;
+	  var sub = 0;
+	  this[offset + i] = value & 0xFF;
+
+	  while (--i >= 0 && (mul *= 0x100)) {
+	    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+	      sub = 1;
+	    }
+
+	    this[offset + i] = (value / mul >> 0) - sub & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer$1.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 1, 0x7f, -0x80);
+	  if (!Buffer$1.TYPED_ARRAY_SUPPORT) value = Math.floor(value);
+	  if (value < 0) value = 0xff + value + 1;
+	  this[offset] = value & 0xff;
+	  return offset + 1;
+	};
+
+	Buffer$1.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 2, 0x7fff, -0x8000);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value & 0xff;
+	    this[offset + 1] = value >>> 8;
+	  } else {
+	    objectWriteUInt16$1(this, value, offset, true);
+	  }
+
+	  return offset + 2;
+	};
+
+	Buffer$1.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 2, 0x7fff, -0x8000);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 8;
+	    this[offset + 1] = value & 0xff;
+	  } else {
+	    objectWriteUInt16$1(this, value, offset, false);
+	  }
+
+	  return offset + 2;
+	};
+
+	Buffer$1.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 4, 0x7fffffff, -0x80000000);
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value & 0xff;
+	    this[offset + 1] = value >>> 8;
+	    this[offset + 2] = value >>> 16;
+	    this[offset + 3] = value >>> 24;
+	  } else {
+	    objectWriteUInt32$1(this, value, offset, true);
+	  }
+
+	  return offset + 4;
+	};
+
+	Buffer$1.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt$1(this, value, offset, 4, 0x7fffffff, -0x80000000);
+	  if (value < 0) value = 0xffffffff + value + 1;
+
+	  if (Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 24;
+	    this[offset + 1] = value >>> 16;
+	    this[offset + 2] = value >>> 8;
+	    this[offset + 3] = value & 0xff;
+	  } else {
+	    objectWriteUInt32$1(this, value, offset, false);
+	  }
+
+	  return offset + 4;
+	};
+
+	function checkIEEE754$1(buf, value, offset, ext, max, min) {
+	  if (offset + ext > buf.length) throw new RangeError('Index out of range');
+	  if (offset < 0) throw new RangeError('Index out of range');
+	}
+
+	function writeFloat$1(buf, value, offset, littleEndian, noAssert) {
+	  if (!noAssert) {
+	    checkIEEE754$1(buf, value, offset, 4);
+	  }
+
+	  write$1(buf, value, offset, littleEndian, 23, 4);
+	  return offset + 4;
+	}
+
+	Buffer$1.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
+	  return writeFloat$1(this, value, offset, true, noAssert);
+	};
+
+	Buffer$1.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
+	  return writeFloat$1(this, value, offset, false, noAssert);
+	};
+
+	function writeDouble$1(buf, value, offset, littleEndian, noAssert) {
+	  if (!noAssert) {
+	    checkIEEE754$1(buf, value, offset, 8);
+	  }
+
+	  write$1(buf, value, offset, littleEndian, 52, 8);
+	  return offset + 8;
+	}
+
+	Buffer$1.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {
+	  return writeDouble$1(this, value, offset, true, noAssert);
+	};
+
+	Buffer$1.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {
+	  return writeDouble$1(this, value, offset, false, noAssert);
+	}; // copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+
+
+	Buffer$1.prototype.copy = function copy(target, targetStart, start, end) {
+	  if (!start) start = 0;
+	  if (!end && end !== 0) end = this.length;
+	  if (targetStart >= target.length) targetStart = target.length;
+	  if (!targetStart) targetStart = 0;
+	  if (end > 0 && end < start) end = start; // Copy 0 bytes; we're done
+
+	  if (end === start) return 0;
+	  if (target.length === 0 || this.length === 0) return 0; // Fatal error conditions
+
+	  if (targetStart < 0) {
+	    throw new RangeError('targetStart out of bounds');
+	  }
+
+	  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds');
+	  if (end < 0) throw new RangeError('sourceEnd out of bounds'); // Are we oob?
+
+	  if (end > this.length) end = this.length;
+
+	  if (target.length - targetStart < end - start) {
+	    end = target.length - targetStart + start;
+	  }
+
+	  var len = end - start;
+	  var i;
+
+	  if (this === target && start < targetStart && targetStart < end) {
+	    // descending copy from end
+	    for (i = len - 1; i >= 0; --i) {
+	      target[i + targetStart] = this[i + start];
+	    }
+	  } else if (len < 1000 || !Buffer$1.TYPED_ARRAY_SUPPORT) {
+	    // ascending copy from start
+	    for (i = 0; i < len; ++i) {
+	      target[i + targetStart] = this[i + start];
+	    }
+	  } else {
+	    Uint8Array.prototype.set.call(target, this.subarray(start, start + len), targetStart);
+	  }
+
+	  return len;
+	}; // Usage:
+	//    buffer.fill(number[, offset[, end]])
+	//    buffer.fill(buffer[, offset[, end]])
+	//    buffer.fill(string[, offset[, end]][, encoding])
+
+
+	Buffer$1.prototype.fill = function fill(val, start, end, encoding) {
+	  // Handle string cases:
+	  if (typeof val === 'string') {
+	    if (typeof start === 'string') {
+	      encoding = start;
+	      start = 0;
+	      end = this.length;
+	    } else if (typeof end === 'string') {
+	      encoding = end;
+	      end = this.length;
+	    }
+
+	    if (val.length === 1) {
+	      var code = val.charCodeAt(0);
+
+	      if (code < 256) {
+	        val = code;
+	      }
+	    }
+
+	    if (encoding !== undefined && typeof encoding !== 'string') {
+	      throw new TypeError('encoding must be a string');
+	    }
+
+	    if (typeof encoding === 'string' && !Buffer$1.isEncoding(encoding)) {
+	      throw new TypeError('Unknown encoding: ' + encoding);
+	    }
+	  } else if (typeof val === 'number') {
+	    val = val & 255;
+	  } // Invalid ranges are not set to a default, so can range check early.
+
+
+	  if (start < 0 || this.length < start || this.length < end) {
+	    throw new RangeError('Out of range index');
+	  }
+
+	  if (end <= start) {
+	    return this;
+	  }
+
+	  start = start >>> 0;
+	  end = end === undefined ? this.length : end >>> 0;
+	  if (!val) val = 0;
+	  var i;
+
+	  if (typeof val === 'number') {
+	    for (i = start; i < end; ++i) {
+	      this[i] = val;
+	    }
+	  } else {
+	    var bytes = internalIsBuffer$1(val) ? val : utf8ToBytes$1(new Buffer$1(val, encoding).toString());
+	    var len = bytes.length;
+
+	    for (i = 0; i < end - start; ++i) {
+	      this[i + start] = bytes[i % len];
+	    }
+	  }
+
+	  return this;
+	}; // HELPER FUNCTIONS
+	// ================
+
+
+	var INVALID_BASE64_RE$1 = /[^+\/0-9A-Za-z-_]/g;
+
+	function base64clean$1(str) {
+	  // Node strips out invalid characters like \n and \t from the string, base64-js does not
+	  str = stringtrim$1(str).replace(INVALID_BASE64_RE$1, ''); // Node converts strings with length < 2 to ''
+
+	  if (str.length < 2) return ''; // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+
+	  while (str.length % 4 !== 0) {
+	    str = str + '=';
+	  }
+
+	  return str;
+	}
+
+	function stringtrim$1(str) {
+	  if (str.trim) return str.trim();
+	  return str.replace(/^\s+|\s+$/g, '');
+	}
+
+	function toHex$1(n) {
+	  if (n < 16) return '0' + n.toString(16);
+	  return n.toString(16);
+	}
+
+	function utf8ToBytes$1(string, units) {
+	  units = units || Infinity;
+	  var codePoint;
+	  var length = string.length;
+	  var leadSurrogate = null;
+	  var bytes = [];
+
+	  for (var i = 0; i < length; ++i) {
+	    codePoint = string.charCodeAt(i); // is surrogate component
+
+	    if (codePoint > 0xD7FF && codePoint < 0xE000) {
+	      // last char was a lead
+	      if (!leadSurrogate) {
+	        // no lead yet
+	        if (codePoint > 0xDBFF) {
+	          // unexpected trail
+	          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	          continue;
+	        } else if (i + 1 === length) {
+	          // unpaired lead
+	          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	          continue;
+	        } // valid lead
+
+
+	        leadSurrogate = codePoint;
+	        continue;
+	      } // 2 leads in a row
+
+
+	      if (codePoint < 0xDC00) {
+	        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	        leadSurrogate = codePoint;
+	        continue;
+	      } // valid surrogate pair
+
+
+	      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;
+	    } else if (leadSurrogate) {
+	      // valid bmp char, but last char was a lead
+	      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	    }
+
+	    leadSurrogate = null; // encode utf8
+
+	    if (codePoint < 0x80) {
+	      if ((units -= 1) < 0) break;
+	      bytes.push(codePoint);
+	    } else if (codePoint < 0x800) {
+	      if ((units -= 2) < 0) break;
+	      bytes.push(codePoint >> 0x6 | 0xC0, codePoint & 0x3F | 0x80);
+	    } else if (codePoint < 0x10000) {
+	      if ((units -= 3) < 0) break;
+	      bytes.push(codePoint >> 0xC | 0xE0, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);
+	    } else if (codePoint < 0x110000) {
+	      if ((units -= 4) < 0) break;
+	      bytes.push(codePoint >> 0x12 | 0xF0, codePoint >> 0xC & 0x3F | 0x80, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);
+	    } else {
+	      throw new Error('Invalid code point');
+	    }
+	  }
+
+	  return bytes;
+	}
+
+	function asciiToBytes$1(str) {
+	  var byteArray = [];
+
+	  for (var i = 0; i < str.length; ++i) {
+	    // Node's code seems to be doing this and not & 0x7F..
+	    byteArray.push(str.charCodeAt(i) & 0xFF);
+	  }
+
+	  return byteArray;
+	}
+
+	function utf16leToBytes$1(str, units) {
+	  var c, hi, lo;
+	  var byteArray = [];
+
+	  for (var i = 0; i < str.length; ++i) {
+	    if ((units -= 2) < 0) break;
+	    c = str.charCodeAt(i);
+	    hi = c >> 8;
+	    lo = c % 256;
+	    byteArray.push(lo);
+	    byteArray.push(hi);
+	  }
+
+	  return byteArray;
+	}
+
+	function base64ToBytes$1(str) {
+	  return toByteArray$1(base64clean$1(str));
+	}
+
+	function blitBuffer$1(src, dst, offset, length) {
+	  for (var i = 0; i < length; ++i) {
+	    if (i + offset >= dst.length || i >= src.length) break;
+	    dst[i + offset] = src[i];
+	  }
+
+	  return i;
+	}
+
+	function isnan$1(val) {
+	  return val !== val; // eslint-disable-line no-self-compare
+	} // the following is from is-buffer, also by Feross Aboukhadijeh and with same lisence
+	// The _isBuffer check is for Safari 5-7 support, because it's missing
+	// Object.prototype.constructor. Remove this eventually
+
+
+	function isBuffer$2(obj) {
+	  return obj != null && (!!obj._isBuffer || isFastBuffer$1(obj) || isSlowBuffer$1(obj));
+	}
+
+	function isFastBuffer$1(obj) {
+	  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj);
+	} // For Node v0.10 support. Remove this eventually.
+
+
+	function isSlowBuffer$1(obj) {
+	  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isFastBuffer$1(obj.slice(0, 0));
+	}
+
+	// based off https://github.com/defunctzombie/node-process/blob/master/browser.js
+
+	function defaultSetTimout() {
+	  throw new Error('setTimeout has not been defined');
+	}
+
+	function defaultClearTimeout() {
+	  throw new Error('clearTimeout has not been defined');
+	}
+
+	var cachedSetTimeout = defaultSetTimout;
+	var cachedClearTimeout = defaultClearTimeout;
+
+	if (typeof global$1.setTimeout === 'function') {
+	  cachedSetTimeout = setTimeout;
+	}
+
+	if (typeof global$1.clearTimeout === 'function') {
+	  cachedClearTimeout = clearTimeout;
+	}
+
+	function runTimeout(fun) {
+	  if (cachedSetTimeout === setTimeout) {
+	    //normal enviroments in sane situations
+	    return setTimeout(fun, 0);
+	  } // if setTimeout wasn't available but was latter defined
+
+
+	  if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+	    cachedSetTimeout = setTimeout;
+	    return setTimeout(fun, 0);
+	  }
+
+	  try {
+	    // when when somebody has screwed with setTimeout but no I.E. maddness
+	    return cachedSetTimeout(fun, 0);
+	  } catch (e) {
+	    try {
+	      // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+	      return cachedSetTimeout.call(null, fun, 0);
+	    } catch (e) {
+	      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+	      return cachedSetTimeout.call(this, fun, 0);
+	    }
+	  }
+	}
+
+	function runClearTimeout(marker) {
+	  if (cachedClearTimeout === clearTimeout) {
+	    //normal enviroments in sane situations
+	    return clearTimeout(marker);
+	  } // if clearTimeout wasn't available but was latter defined
+
+
+	  if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+	    cachedClearTimeout = clearTimeout;
+	    return clearTimeout(marker);
+	  }
+
+	  try {
+	    // when when somebody has screwed with setTimeout but no I.E. maddness
+	    return cachedClearTimeout(marker);
+	  } catch (e) {
+	    try {
+	      // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+	      return cachedClearTimeout.call(null, marker);
+	    } catch (e) {
+	      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+	      // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+	      return cachedClearTimeout.call(this, marker);
+	    }
+	  }
+	}
+
+	var queue$1 = [];
+	var draining = false;
+	var currentQueue;
+	var queueIndex = -1;
+
+	function cleanUpNextTick() {
+	  if (!draining || !currentQueue) {
+	    return;
+	  }
+
+	  draining = false;
+
+	  if (currentQueue.length) {
+	    queue$1 = currentQueue.concat(queue$1);
+	  } else {
+	    queueIndex = -1;
+	  }
+
+	  if (queue$1.length) {
+	    drainQueue();
+	  }
+	}
+
+	function drainQueue() {
+	  if (draining) {
+	    return;
+	  }
+
+	  var timeout = runTimeout(cleanUpNextTick);
+	  draining = true;
+	  var len = queue$1.length;
+
+	  while (len) {
+	    currentQueue = queue$1;
+	    queue$1 = [];
+
+	    while (++queueIndex < len) {
+	      if (currentQueue) {
+	        currentQueue[queueIndex].run();
+	      }
+	    }
+
+	    queueIndex = -1;
+	    len = queue$1.length;
+	  }
+
+	  currentQueue = null;
+	  draining = false;
+	  runClearTimeout(timeout);
+	}
+
+	function nextTick(fun) {
+	  var args = new Array(arguments.length - 1);
+
+	  if (arguments.length > 1) {
+	    for (var i = 1; i < arguments.length; i++) {
+	      args[i - 1] = arguments[i];
+	    }
+	  }
+
+	  queue$1.push(new Item(fun, args));
+
+	  if (queue$1.length === 1 && !draining) {
+	    runTimeout(drainQueue);
+	  }
+	} // v8 likes predictible objects
+
+
+	function Item(fun, array) {
+	  this.fun = fun;
+	  this.array = array;
+	}
+
+	Item.prototype.run = function () {
+	  this.fun.apply(null, this.array);
+	};
+
+	var title = 'browser';
+	var platform = 'browser';
+	var browser$3 = true;
+	var env = {};
+	var argv = [];
+	var version$1 = ''; // empty string to avoid regexp issues
+
+	var versions = {};
+	var release = {};
+	var config = {};
+
+	function noop() {}
+
+	var on = noop;
+	var addListener = noop;
+	var once = noop;
+	var off = noop;
+	var removeListener = noop;
+	var removeAllListeners = noop;
+	var emit = noop;
+
+	function binding(name) {
+	  throw new Error('process.binding is not supported');
+	}
+
+	function cwd() {
+	  return '/';
+	}
+
+	function chdir(dir) {
+	  throw new Error('process.chdir is not supported');
+	}
+
+	function umask() {
+	  return 0;
+	} // from https://github.com/kumavis/browser-process-hrtime/blob/master/index.js
+
+
+	var performance = global$1.performance || {};
+
+	var performanceNow = performance.now || performance.mozNow || performance.msNow || performance.oNow || performance.webkitNow || function () {
+	  return new Date().getTime();
+	}; // generate timestamp or delta
+	// see http://nodejs.org/api/process.html#process_process_hrtime
+
+
+	function hrtime(previousTimestamp) {
+	  var clocktime = performanceNow.call(performance) * 1e-3;
+	  var seconds = Math.floor(clocktime);
+	  var nanoseconds = Math.floor(clocktime % 1 * 1e9);
+
+	  if (previousTimestamp) {
+	    seconds = seconds - previousTimestamp[0];
+	    nanoseconds = nanoseconds - previousTimestamp[1];
+
+	    if (nanoseconds < 0) {
+	      seconds--;
+	      nanoseconds += 1e9;
+	    }
+	  }
+
+	  return [seconds, nanoseconds];
+	}
+
+	var startTime = new Date();
+
+	function uptime() {
+	  var currentTime = new Date();
+	  var dif = currentTime - startTime;
+	  return dif / 1000;
+	}
+
+	var browser$1$1 = {
+	  nextTick: nextTick,
+	  title: title,
+	  browser: browser$3,
+	  env: env,
+	  argv: argv,
+	  version: version$1,
+	  versions: versions,
+	  on: on,
+	  addListener: addListener,
+	  once: once,
+	  off: off,
+	  removeListener: removeListener,
+	  removeAllListeners: removeAllListeners,
+	  emit: emit,
+	  binding: binding,
+	  cwd: cwd,
+	  chdir: chdir,
+	  umask: umask,
+	  hrtime: hrtime,
+	  platform: platform,
+	  release: release,
+	  config: config,
+	  uptime: uptime
+	};
+	var process$3 = browser$1$1;
+
+	var inherits$2;
+
+	if (typeof Object.create === 'function') {
+	  inherits$2 = function inherits(ctor, superCtor) {
+	    // implementation from standard node.js 'util' module
+	    ctor.super_ = superCtor;
+	    ctor.prototype = Object.create(superCtor.prototype, {
+	      constructor: {
+	        value: ctor,
+	        enumerable: false,
+	        writable: true,
+	        configurable: true
+	      }
+	    });
+	  };
+	} else {
+	  inherits$2 = function inherits(ctor, superCtor) {
+	    ctor.super_ = superCtor;
+
+	    var TempCtor = function TempCtor() {};
+
+	    TempCtor.prototype = superCtor.prototype;
+	    ctor.prototype = new TempCtor();
+	    ctor.prototype.constructor = ctor;
+	  };
+	}
+
+	var inherits$3 = inherits$2;
+
+	var formatRegExp = /%[sdj%]/g;
+	function format$1(f) {
+	  if (!isString$1(f)) {
+	    var objects = [];
+
+	    for (var i = 0; i < arguments.length; i++) {
+	      objects.push(inspect(arguments[i]));
+	    }
+
+	    return objects.join(' ');
+	  }
+
+	  var i = 1;
+	  var args = arguments;
+	  var len = args.length;
+	  var str = String(f).replace(formatRegExp, function (x) {
+	    if (x === '%%') return '%';
+	    if (i >= len) return x;
+
+	    switch (x) {
+	      case '%s':
+	        return String(args[i++]);
+
+	      case '%d':
+	        return Number(args[i++]);
+
+	      case '%j':
+	        try {
+	          return JSON.stringify(args[i++]);
+	        } catch (_) {
+	          return '[Circular]';
+	        }
+
+	      default:
+	        return x;
+	    }
+	  });
+
+	  for (var x = args[i]; i < len; x = args[++i]) {
+	    if (isNull(x) || !isObject(x)) {
+	      str += ' ' + x;
+	    } else {
+	      str += ' ' + inspect(x);
+	    }
+	  }
+
+	  return str;
+	}
+	// Returns a modified function which warns once by default.
+	// If --no-deprecation is set, then it is a no-op.
+
+	function deprecate$1(fn, msg) {
+	  // Allow for deprecating things in the process of starting up.
+	  if (isUndefined(global$1.process)) {
+	    return function () {
+	      return deprecate$1(fn, msg).apply(this, arguments);
+	    };
+	  }
+
+	  if (process$3.noDeprecation === true) {
+	    return fn;
+	  }
+
+	  var warned = false;
+
+	  function deprecated() {
+	    if (!warned) {
+	      if (process$3.throwDeprecation) {
+	        throw new Error(msg);
+	      } else if (process$3.traceDeprecation) {
+	        console.trace(msg);
+	      } else {
+	        console.error(msg);
+	      }
+
+	      warned = true;
+	    }
+
+	    return fn.apply(this, arguments);
+	  }
+
+	  return deprecated;
+	}
+	var debugs = {};
+	var debugEnviron;
+	function debuglog(set) {
+	  if (isUndefined(debugEnviron)) debugEnviron = process$3.env.NODE_DEBUG || '';
+	  set = set.toUpperCase();
+
+	  if (!debugs[set]) {
+	    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
+	      var pid = 0;
+
+	      debugs[set] = function () {
+	        var msg = format$1.apply(null, arguments);
+	        console.error('%s %d: %s', set, pid, msg);
+	      };
+	    } else {
+	      debugs[set] = function () {};
+	    }
+	  }
+
+	  return debugs[set];
+	}
+	/**
+	 * Echos the value of a value. Trys to print the value out
+	 * in the best way possible given the different types.
+	 *
+	 * @param {Object} obj The object to print out.
+	 * @param {Object} opts Optional options object that alters the output.
+	 */
+
+	/* legacy: obj, showHidden, depth, colors*/
+
+	function inspect(obj, opts) {
+	  // default options
+	  var ctx = {
+	    seen: [],
+	    stylize: stylizeNoColor
+	  }; // legacy...
+
+	  if (arguments.length >= 3) ctx.depth = arguments[2];
+	  if (arguments.length >= 4) ctx.colors = arguments[3];
+
+	  if (isBoolean(opts)) {
+	    // legacy...
+	    ctx.showHidden = opts;
+	  } else if (opts) {
+	    // got an "options" object
+	    _extend(ctx, opts);
+	  } // set default options
+
+
+	  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
+	  if (isUndefined(ctx.depth)) ctx.depth = 2;
+	  if (isUndefined(ctx.colors)) ctx.colors = false;
+	  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
+	  if (ctx.colors) ctx.stylize = stylizeWithColor;
+	  return formatValue(ctx, obj, ctx.depth);
+	} // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+
+	inspect.colors = {
+	  'bold': [1, 22],
+	  'italic': [3, 23],
+	  'underline': [4, 24],
+	  'inverse': [7, 27],
+	  'white': [37, 39],
+	  'grey': [90, 39],
+	  'black': [30, 39],
+	  'blue': [34, 39],
+	  'cyan': [36, 39],
+	  'green': [32, 39],
+	  'magenta': [35, 39],
+	  'red': [31, 39],
+	  'yellow': [33, 39]
+	}; // Don't use 'blue' not visible on cmd.exe
+
+	inspect.styles = {
+	  'special': 'cyan',
+	  'number': 'yellow',
+	  'boolean': 'yellow',
+	  'undefined': 'grey',
+	  'null': 'bold',
+	  'string': 'green',
+	  'date': 'magenta',
+	  // "name": intentionally not styling
+	  'regexp': 'red'
+	};
+
+	function stylizeWithColor(str, styleType) {
+	  var style = inspect.styles[styleType];
+
+	  if (style) {
+	    return "\x1B[" + inspect.colors[style][0] + 'm' + str + "\x1B[" + inspect.colors[style][1] + 'm';
+	  } else {
+	    return str;
+	  }
+	}
+
+	function stylizeNoColor(str, styleType) {
+	  return str;
+	}
+
+	function arrayToHash(array) {
+	  var hash = {};
+	  array.forEach(function (val, idx) {
+	    hash[val] = true;
+	  });
+	  return hash;
+	}
+
+	function formatValue(ctx, value, recurseTimes) {
+	  // Provide a hook for user-specified inspect functions.
+	  // Check that value is an object with an inspect function on it
+	  if (ctx.customInspect && value && isFunction(value.inspect) && // Filter out the util module, it's inspect function is special
+	  value.inspect !== inspect && // Also filter out any prototype objects using the circular check.
+	  !(value.constructor && value.constructor.prototype === value)) {
+	    var ret = value.inspect(recurseTimes, ctx);
+
+	    if (!isString$1(ret)) {
+	      ret = formatValue(ctx, ret, recurseTimes);
+	    }
+
+	    return ret;
+	  } // Primitive types cannot have properties
+
+
+	  var primitive = formatPrimitive(ctx, value);
+
+	  if (primitive) {
+	    return primitive;
+	  } // Look up the keys of the object.
+
+
+	  var keys = Object.keys(value);
+	  var visibleKeys = arrayToHash(keys);
+
+	  if (ctx.showHidden) {
+	    keys = Object.getOwnPropertyNames(value);
+	  } // IE doesn't make error fields non-enumerable
+	  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
+
+
+	  if (isError$1(value) && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
+	    return formatError(value);
+	  } // Some type of object without properties can be shortcutted.
+
+
+	  if (keys.length === 0) {
+	    if (isFunction(value)) {
+	      var name = value.name ? ': ' + value.name : '';
+	      return ctx.stylize('[Function' + name + ']', 'special');
+	    }
+
+	    if (isRegExp(value)) {
+	      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+	    }
+
+	    if (isDate(value)) {
+	      return ctx.stylize(Date.prototype.toString.call(value), 'date');
+	    }
+
+	    if (isError$1(value)) {
+	      return formatError(value);
+	    }
+	  }
+
+	  var base = '',
+	      array = false,
+	      braces = ['{', '}']; // Make Array say that they are Array
+
+	  if (isArray$1(value)) {
+	    array = true;
+	    braces = ['[', ']'];
+	  } // Make functions say that they are functions
+
+
+	  if (isFunction(value)) {
+	    var n = value.name ? ': ' + value.name : '';
+	    base = ' [Function' + n + ']';
+	  } // Make RegExps say that they are RegExps
+
+
+	  if (isRegExp(value)) {
+	    base = ' ' + RegExp.prototype.toString.call(value);
+	  } // Make dates with properties first say the date
+
+
+	  if (isDate(value)) {
+	    base = ' ' + Date.prototype.toUTCString.call(value);
+	  } // Make error with message first say the error
+
+
+	  if (isError$1(value)) {
+	    base = ' ' + formatError(value);
+	  }
+
+	  if (keys.length === 0 && (!array || value.length == 0)) {
+	    return braces[0] + base + braces[1];
+	  }
+
+	  if (recurseTimes < 0) {
+	    if (isRegExp(value)) {
+	      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+	    } else {
+	      return ctx.stylize('[Object]', 'special');
+	    }
+	  }
+
+	  ctx.seen.push(value);
+	  var output;
+
+	  if (array) {
+	    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+	  } else {
+	    output = keys.map(function (key) {
+	      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
+	    });
+	  }
+
+	  ctx.seen.pop();
+	  return reduceToSingleString(output, base, braces);
+	}
+
+	function formatPrimitive(ctx, value) {
+	  if (isUndefined(value)) return ctx.stylize('undefined', 'undefined');
+
+	  if (isString$1(value)) {
+	    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '').replace(/'/g, "\\'").replace(/\\"/g, '"') + '\'';
+	    return ctx.stylize(simple, 'string');
+	  }
+
+	  if (isNumber(value)) return ctx.stylize('' + value, 'number');
+	  if (isBoolean(value)) return ctx.stylize('' + value, 'boolean'); // For some reason typeof null is "object", so special case here.
+
+	  if (isNull(value)) return ctx.stylize('null', 'null');
+	}
+
+	function formatError(value) {
+	  return '[' + Error.prototype.toString.call(value) + ']';
+	}
+
+	function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
+	  var output = [];
+
+	  for (var i = 0, l = value.length; i < l; ++i) {
+	    if (hasOwnProperty(value, String(i))) {
+	      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, String(i), true));
+	    } else {
+	      output.push('');
+	    }
+	  }
+
+	  keys.forEach(function (key) {
+	    if (!key.match(/^\d+$/)) {
+	      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, key, true));
+	    }
+	  });
+	  return output;
+	}
+
+	function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+	  var name, str, desc;
+	  desc = Object.getOwnPropertyDescriptor(value, key) || {
+	    value: value[key]
+	  };
+
+	  if (desc.get) {
+	    if (desc.set) {
+	      str = ctx.stylize('[Getter/Setter]', 'special');
+	    } else {
+	      str = ctx.stylize('[Getter]', 'special');
+	    }
+	  } else {
+	    if (desc.set) {
+	      str = ctx.stylize('[Setter]', 'special');
+	    }
+	  }
+
+	  if (!hasOwnProperty(visibleKeys, key)) {
+	    name = '[' + key + ']';
+	  }
+
+	  if (!str) {
+	    if (ctx.seen.indexOf(desc.value) < 0) {
+	      if (isNull(recurseTimes)) {
+	        str = formatValue(ctx, desc.value, null);
+	      } else {
+	        str = formatValue(ctx, desc.value, recurseTimes - 1);
+	      }
+
+	      if (str.indexOf('\n') > -1) {
+	        if (array) {
+	          str = str.split('\n').map(function (line) {
+	            return '  ' + line;
+	          }).join('\n').substr(2);
+	        } else {
+	          str = '\n' + str.split('\n').map(function (line) {
+	            return '   ' + line;
+	          }).join('\n');
+	        }
+	      }
+	    } else {
+	      str = ctx.stylize('[Circular]', 'special');
+	    }
+	  }
+
+	  if (isUndefined(name)) {
+	    if (array && key.match(/^\d+$/)) {
+	      return str;
+	    }
+
+	    name = JSON.stringify('' + key);
+
+	    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+	      name = name.substr(1, name.length - 2);
+	      name = ctx.stylize(name, 'name');
+	    } else {
+	      name = name.replace(/'/g, "\\'").replace(/\\"/g, '"').replace(/(^"|"$)/g, "'");
+	      name = ctx.stylize(name, 'string');
+	    }
+	  }
+
+	  return name + ': ' + str;
+	}
+
+	function reduceToSingleString(output, base, braces) {
+	  var length = output.reduce(function (prev, cur) {
+	    if (cur.indexOf('\n') >= 0) ;
+	    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
+	  }, 0);
+
+	  if (length > 60) {
+	    return braces[0] + (base === '' ? '' : base + '\n ') + ' ' + output.join(',\n  ') + ' ' + braces[1];
+	  }
+
+	  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+	} // NOTE: These type checking functions intentionally don't use `instanceof`
+	// because it is fragile and can be easily faked with `Object.create()`.
+
+
+	function isArray$1(ar) {
+	  return Array.isArray(ar);
+	}
+	function isBoolean(arg) {
+	  return typeof arg === 'boolean';
+	}
+	function isNull(arg) {
+	  return arg === null;
+	}
+	function isNullOrUndefined(arg) {
+	  return arg == null;
+	}
+	function isNumber(arg) {
+	  return typeof arg === 'number';
+	}
+	function isString$1(arg) {
+	  return typeof arg === 'string';
+	}
+	function isSymbol(arg) {
+	  return _typeof(arg) === 'symbol';
+	}
+	function isUndefined(arg) {
+	  return arg === void 0;
+	}
+	function isRegExp(re) {
+	  return isObject(re) && objectToString(re) === '[object RegExp]';
+	}
+	function isObject(arg) {
+	  return _typeof(arg) === 'object' && arg !== null;
+	}
+	function isDate(d) {
+	  return isObject(d) && objectToString(d) === '[object Date]';
+	}
+	function isError$1(e) {
+	  return isObject(e) && (objectToString(e) === '[object Error]' || e instanceof Error);
+	}
+	function isFunction(arg) {
+	  return typeof arg === 'function';
+	}
+	function isPrimitive(arg) {
+	  return arg === null || typeof arg === 'boolean' || typeof arg === 'number' || typeof arg === 'string' || _typeof(arg) === 'symbol' || // ES6 symbol
+	  typeof arg === 'undefined';
+	}
+	function isBuffer$1(maybeBuf) {
+	  return isBuffer$2(maybeBuf);
+	}
+
+	function objectToString(o) {
+	  return Object.prototype.toString.call(o);
+	}
+
+	function pad(n) {
+	  return n < 10 ? '0' + n.toString(10) : n.toString(10);
+	}
+
+	var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; // 26 Feb 16:19:34
+
+	function timestamp() {
+	  var d = new Date();
+	  var time = [pad(d.getHours()), pad(d.getMinutes()), pad(d.getSeconds())].join(':');
+	  return [d.getDate(), months[d.getMonth()], time].join(' ');
+	} // log is just a thin wrapper to console.log that prepends a timestamp
+
+
+	function log$1() {
+	  console.log('%s - %s', timestamp(), format$1.apply(null, arguments));
+	}
+	function _extend(origin, add) {
+	  // Don't do anything if add isn't an object
+	  if (!add || !isObject(add)) return origin;
+	  var keys = Object.keys(add);
+	  var i = keys.length;
+
+	  while (i--) {
+	    origin[keys[i]] = add[keys[i]];
+	  }
+
+	  return origin;
+	}
+
+	function hasOwnProperty(obj, prop) {
+	  return Object.prototype.hasOwnProperty.call(obj, prop);
+	}
+
+	var util = {
+	  inherits: inherits$3,
+	  _extend: _extend,
+	  log: log$1,
+	  isBuffer: isBuffer$1,
+	  isPrimitive: isPrimitive,
+	  isFunction: isFunction,
+	  isError: isError$1,
+	  isDate: isDate,
+	  isObject: isObject,
+	  isRegExp: isRegExp,
+	  isUndefined: isUndefined,
+	  isSymbol: isSymbol,
+	  isString: isString$1,
+	  isNumber: isNumber,
+	  isNullOrUndefined: isNullOrUndefined,
+	  isNull: isNull,
+	  isBoolean: isBoolean,
+	  isArray: isArray$1,
+	  inspect: inspect,
+	  deprecate: deprecate$1,
+	  format: format$1,
+	  debuglog: debuglog
+	};
+
+	var lookup = [];
+	var revLookup = [];
+	var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;
+	var inited = false;
+
+	function init() {
+	  inited = true;
+	  var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+	  for (var i = 0, len = code.length; i < len; ++i) {
+	    lookup[i] = code[i];
+	    revLookup[code.charCodeAt(i)] = i;
+	  }
+
+	  revLookup['-'.charCodeAt(0)] = 62;
+	  revLookup['_'.charCodeAt(0)] = 63;
+	}
+
+	function toByteArray(b64) {
+	  if (!inited) {
+	    init();
+	  }
+
+	  var i, j, l, tmp, placeHolders, arr;
+	  var len = b64.length;
+
+	  if (len % 4 > 0) {
+	    throw new Error('Invalid string. Length must be a multiple of 4');
+	  } // the number of equal signs (place holders)
+	  // if there are two placeholders, than the two characters before it
+	  // represent one byte
+	  // if there is only one, then the three characters before it represent 2 bytes
+	  // this is just a cheap hack to not do indexOf twice
+
+
+	  placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0; // base64 is 4/3 + up to two characters of the original data
+
+	  arr = new Arr(len * 3 / 4 - placeHolders); // if there are placeholders, only get up to the last complete 4 chars
+
+	  l = placeHolders > 0 ? len - 4 : len;
+	  var L = 0;
+
+	  for (i = 0, j = 0; i < l; i += 4, j += 3) {
+	    tmp = revLookup[b64.charCodeAt(i)] << 18 | revLookup[b64.charCodeAt(i + 1)] << 12 | revLookup[b64.charCodeAt(i + 2)] << 6 | revLookup[b64.charCodeAt(i + 3)];
+	    arr[L++] = tmp >> 16 & 0xFF;
+	    arr[L++] = tmp >> 8 & 0xFF;
+	    arr[L++] = tmp & 0xFF;
+	  }
+
+	  if (placeHolders === 2) {
+	    tmp = revLookup[b64.charCodeAt(i)] << 2 | revLookup[b64.charCodeAt(i + 1)] >> 4;
+	    arr[L++] = tmp & 0xFF;
+	  } else if (placeHolders === 1) {
+	    tmp = revLookup[b64.charCodeAt(i)] << 10 | revLookup[b64.charCodeAt(i + 1)] << 4 | revLookup[b64.charCodeAt(i + 2)] >> 2;
+	    arr[L++] = tmp >> 8 & 0xFF;
+	    arr[L++] = tmp & 0xFF;
+	  }
+
+	  return arr;
+	}
+
+	function tripletToBase64(num) {
+	  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];
+	}
+
+	function encodeChunk(uint8, start, end) {
+	  var tmp;
+	  var output = [];
+
+	  for (var i = start; i < end; i += 3) {
+	    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + uint8[i + 2];
+	    output.push(tripletToBase64(tmp));
+	  }
+
+	  return output.join('');
+	}
+
+	function fromByteArray(uint8) {
+	  if (!inited) {
+	    init();
+	  }
+
+	  var tmp;
+	  var len = uint8.length;
+	  var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes
+
+	  var output = '';
+	  var parts = [];
+	  var maxChunkLength = 16383; // must be multiple of 3
+	  // go through the array every three bytes, we'll deal with trailing stuff later
+
+	  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+	    parts.push(encodeChunk(uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength));
+	  } // pad the end with zeros, but make sure to not forget the extra bytes
+
+
+	  if (extraBytes === 1) {
+	    tmp = uint8[len - 1];
+	    output += lookup[tmp >> 2];
+	    output += lookup[tmp << 4 & 0x3F];
+	    output += '==';
+	  } else if (extraBytes === 2) {
+	    tmp = (uint8[len - 2] << 8) + uint8[len - 1];
+	    output += lookup[tmp >> 10];
+	    output += lookup[tmp >> 4 & 0x3F];
+	    output += lookup[tmp << 2 & 0x3F];
+	    output += '=';
+	  }
+
+	  parts.push(output);
+	  return parts.join('');
+	}
+
+	function read(buffer, offset, isLE, mLen, nBytes) {
+	  var e, m;
+	  var eLen = nBytes * 8 - mLen - 1;
+	  var eMax = (1 << eLen) - 1;
+	  var eBias = eMax >> 1;
+	  var nBits = -7;
+	  var i = isLE ? nBytes - 1 : 0;
+	  var d = isLE ? -1 : 1;
+	  var s = buffer[offset + i];
+	  i += d;
+	  e = s & (1 << -nBits) - 1;
+	  s >>= -nBits;
+	  nBits += eLen;
+
+	  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+	  m = e & (1 << -nBits) - 1;
+	  e >>= -nBits;
+	  nBits += mLen;
+
+	  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+	  if (e === 0) {
+	    e = 1 - eBias;
+	  } else if (e === eMax) {
+	    return m ? NaN : (s ? -1 : 1) * Infinity;
+	  } else {
+	    m = m + Math.pow(2, mLen);
+	    e = e - eBias;
+	  }
+
+	  return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
+	}
+
+	function write(buffer, value, offset, isLE, mLen, nBytes) {
+	  var e, m, c;
+	  var eLen = nBytes * 8 - mLen - 1;
+	  var eMax = (1 << eLen) - 1;
+	  var eBias = eMax >> 1;
+	  var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;
+	  var i = isLE ? 0 : nBytes - 1;
+	  var d = isLE ? 1 : -1;
+	  var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;
+	  value = Math.abs(value);
+
+	  if (isNaN(value) || value === Infinity) {
+	    m = isNaN(value) ? 1 : 0;
+	    e = eMax;
+	  } else {
+	    e = Math.floor(Math.log(value) / Math.LN2);
+
+	    if (value * (c = Math.pow(2, -e)) < 1) {
+	      e--;
+	      c *= 2;
+	    }
+
+	    if (e + eBias >= 1) {
+	      value += rt / c;
+	    } else {
+	      value += rt * Math.pow(2, 1 - eBias);
+	    }
+
+	    if (value * c >= 2) {
+	      e++;
+	      c /= 2;
+	    }
+
+	    if (e + eBias >= eMax) {
+	      m = 0;
+	      e = eMax;
+	    } else if (e + eBias >= 1) {
+	      m = (value * c - 1) * Math.pow(2, mLen);
+	      e = e + eBias;
+	    } else {
+	      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
+	      e = 0;
+	    }
+	  }
+
+	  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+	  e = e << mLen | m;
+	  eLen += mLen;
+
+	  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+	  buffer[offset + i - d] |= s * 128;
+	}
+
+	var toString$1 = {}.toString;
+
+	var isArray = Array.isArray || function (arr) {
+	  return toString$1.call(arr) == '[object Array]';
+	};
+	/*!
+	 * The buffer module from node.js, for the browser.
+	 *
+	 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+	 * @license  MIT
+	 */
+
+
+	var INSPECT_MAX_BYTES = 50;
+	/**
+	 * If `Buffer.TYPED_ARRAY_SUPPORT`:
+	 *   === true    Use Uint8Array implementation (fastest)
+	 *   === false   Use Object implementation (most compatible, even IE6)
+	 *
+	 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+	 * Opera 11.6+, iOS 4.2+.
+	 *
+	 * Due to various browser bugs, sometimes the Object implementation will be used even
+	 * when the browser supports typed arrays.
+	 *
+	 * Note:
+	 *
+	 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
+	 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
+	 *
+	 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
+	 *
+	 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
+	 *     incorrect length in some situations.
+
+	 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
+	 * get the Object implementation, which is slower but behaves correctly.
+	 */
+
+	Buffer.TYPED_ARRAY_SUPPORT = global$1.TYPED_ARRAY_SUPPORT !== undefined ? global$1.TYPED_ARRAY_SUPPORT : true;
+
+	function kMaxLength() {
+	  return Buffer.TYPED_ARRAY_SUPPORT ? 0x7fffffff : 0x3fffffff;
+	}
+
+	function createBuffer(that, length) {
+	  if (kMaxLength() < length) {
+	    throw new RangeError('Invalid typed array length');
+	  }
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    // Return an augmented `Uint8Array` instance, for best performance
+	    that = new Uint8Array(length);
+	    that.__proto__ = Buffer.prototype;
+	  } else {
+	    // Fallback: Return an object instance of the Buffer class
+	    if (that === null) {
+	      that = new Buffer(length);
+	    }
+
+	    that.length = length;
+	  }
+
+	  return that;
+	}
+	/**
+	 * The Buffer constructor returns instances of `Uint8Array` that have their
+	 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+	 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+	 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+	 * returns a single octet.
+	 *
+	 * The `Uint8Array` prototype remains unmodified.
+	 */
+
+
+	function Buffer(arg, encodingOrOffset, length) {
+	  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
+	    return new Buffer(arg, encodingOrOffset, length);
+	  } // Common case.
+
+
+	  if (typeof arg === 'number') {
+	    if (typeof encodingOrOffset === 'string') {
+	      throw new Error('If encoding is specified then the first argument must be a string');
+	    }
+
+	    return allocUnsafe(this, arg);
+	  }
+
+	  return from(this, arg, encodingOrOffset, length);
+	}
+
+	Buffer.poolSize = 8192; // not used by this implementation
+	// TODO: Legacy, not needed anymore. Remove in next major version.
+
+	Buffer._augment = function (arr) {
+	  arr.__proto__ = Buffer.prototype;
+	  return arr;
+	};
+
+	function from(that, value, encodingOrOffset, length) {
+	  if (typeof value === 'number') {
+	    throw new TypeError('"value" argument must not be a number');
+	  }
+
+	  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
+	    return fromArrayBuffer(that, value, encodingOrOffset, length);
+	  }
+
+	  if (typeof value === 'string') {
+	    return fromString(that, value, encodingOrOffset);
+	  }
+
+	  return fromObject(that, value);
+	}
+	/**
+	 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+	 * if value is a number.
+	 * Buffer.from(str[, encoding])
+	 * Buffer.from(array)
+	 * Buffer.from(buffer)
+	 * Buffer.from(arrayBuffer[, byteOffset[, length]])
+	 **/
+
+
+	Buffer.from = function (value, encodingOrOffset, length) {
+	  return from(null, value, encodingOrOffset, length);
+	};
+
+	if (Buffer.TYPED_ARRAY_SUPPORT) {
+	  Buffer.prototype.__proto__ = Uint8Array.prototype;
+	  Buffer.__proto__ = Uint8Array;
+	}
+
+	function assertSize(size) {
+	  if (typeof size !== 'number') {
+	    throw new TypeError('"size" argument must be a number');
+	  } else if (size < 0) {
+	    throw new RangeError('"size" argument must not be negative');
+	  }
+	}
+
+	function alloc(that, size, fill, encoding) {
+	  assertSize(size);
+
+	  if (size <= 0) {
+	    return createBuffer(that, size);
+	  }
+
+	  if (fill !== undefined) {
+	    // Only pay attention to encoding if it's a string. This
+	    // prevents accidentally sending in a number that would
+	    // be interpretted as a start offset.
+	    return typeof encoding === 'string' ? createBuffer(that, size).fill(fill, encoding) : createBuffer(that, size).fill(fill);
+	  }
+
+	  return createBuffer(that, size);
+	}
+	/**
+	 * Creates a new filled Buffer instance.
+	 * alloc(size[, fill[, encoding]])
+	 **/
+
+
+	Buffer.alloc = function (size, fill, encoding) {
+	  return alloc(null, size, fill, encoding);
+	};
+
+	function allocUnsafe(that, size) {
+	  assertSize(size);
+	  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0);
+
+	  if (!Buffer.TYPED_ARRAY_SUPPORT) {
+	    for (var i = 0; i < size; ++i) {
+	      that[i] = 0;
+	    }
+	  }
+
+	  return that;
+	}
+	/**
+	 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+	 * */
+
+
+	Buffer.allocUnsafe = function (size) {
+	  return allocUnsafe(null, size);
+	};
+	/**
+	 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+	 */
+
+
+	Buffer.allocUnsafeSlow = function (size) {
+	  return allocUnsafe(null, size);
+	};
+
+	function fromString(that, string, encoding) {
+	  if (typeof encoding !== 'string' || encoding === '') {
+	    encoding = 'utf8';
+	  }
+
+	  if (!Buffer.isEncoding(encoding)) {
+	    throw new TypeError('"encoding" must be a valid string encoding');
+	  }
+
+	  var length = byteLength(string, encoding) | 0;
+	  that = createBuffer(that, length);
+	  var actual = that.write(string, encoding);
+
+	  if (actual !== length) {
+	    // Writing a hex string, for example, that contains invalid characters will
+	    // cause everything after the first invalid character to be ignored. (e.g.
+	    // 'abxxcd' will be treated as 'ab')
+	    that = that.slice(0, actual);
+	  }
+
+	  return that;
+	}
+
+	function fromArrayLike(that, array) {
+	  var length = array.length < 0 ? 0 : checked(array.length) | 0;
+	  that = createBuffer(that, length);
+
+	  for (var i = 0; i < length; i += 1) {
+	    that[i] = array[i] & 255;
+	  }
+
+	  return that;
+	}
+
+	function fromArrayBuffer(that, array, byteOffset, length) {
+	  array.byteLength; // this throws if `array` is not a valid ArrayBuffer
+
+	  if (byteOffset < 0 || array.byteLength < byteOffset) {
+	    throw new RangeError('\'offset\' is out of bounds');
+	  }
+
+	  if (array.byteLength < byteOffset + (length || 0)) {
+	    throw new RangeError('\'length\' is out of bounds');
+	  }
+
+	  if (byteOffset === undefined && length === undefined) {
+	    array = new Uint8Array(array);
+	  } else if (length === undefined) {
+	    array = new Uint8Array(array, byteOffset);
+	  } else {
+	    array = new Uint8Array(array, byteOffset, length);
+	  }
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    // Return an augmented `Uint8Array` instance, for best performance
+	    that = array;
+	    that.__proto__ = Buffer.prototype;
+	  } else {
+	    // Fallback: Return an object instance of the Buffer class
+	    that = fromArrayLike(that, array);
+	  }
+
+	  return that;
+	}
+
+	function fromObject(that, obj) {
+	  if (internalIsBuffer(obj)) {
+	    var len = checked(obj.length) | 0;
+	    that = createBuffer(that, len);
+
+	    if (that.length === 0) {
+	      return that;
+	    }
+
+	    obj.copy(that, 0, 0, len);
+	    return that;
+	  }
+
+	  if (obj) {
+	    if (typeof ArrayBuffer !== 'undefined' && obj.buffer instanceof ArrayBuffer || 'length' in obj) {
+	      if (typeof obj.length !== 'number' || isnan(obj.length)) {
+	        return createBuffer(that, 0);
+	      }
+
+	      return fromArrayLike(that, obj);
+	    }
+
+	    if (obj.type === 'Buffer' && isArray(obj.data)) {
+	      return fromArrayLike(that, obj.data);
+	    }
+	  }
+
+	  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.');
+	}
+
+	function checked(length) {
+	  // Note: cannot use `length < kMaxLength()` here because that fails when
+	  // length is NaN (which is otherwise coerced to zero.)
+	  if (length >= kMaxLength()) {
+	    throw new RangeError('Attempt to allocate Buffer larger than maximum ' + 'size: 0x' + kMaxLength().toString(16) + ' bytes');
+	  }
+
+	  return length | 0;
+	}
+
+	Buffer.isBuffer = isBuffer;
+
+	function internalIsBuffer(b) {
+	  return !!(b != null && b._isBuffer);
+	}
+
+	Buffer.compare = function compare(a, b) {
+	  if (!internalIsBuffer(a) || !internalIsBuffer(b)) {
+	    throw new TypeError('Arguments must be Buffers');
+	  }
+
+	  if (a === b) return 0;
+	  var x = a.length;
+	  var y = b.length;
+
+	  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+	    if (a[i] !== b[i]) {
+	      x = a[i];
+	      y = b[i];
+	      break;
+	    }
+	  }
+
+	  if (x < y) return -1;
+	  if (y < x) return 1;
+	  return 0;
+	};
+
+	Buffer.isEncoding = function isEncoding(encoding) {
+	  switch (String(encoding).toLowerCase()) {
+	    case 'hex':
+	    case 'utf8':
+	    case 'utf-8':
+	    case 'ascii':
+	    case 'latin1':
+	    case 'binary':
+	    case 'base64':
+	    case 'ucs2':
+	    case 'ucs-2':
+	    case 'utf16le':
+	    case 'utf-16le':
+	      return true;
+
+	    default:
+	      return false;
+	  }
+	};
+
+	Buffer.concat = function concat(list, length) {
+	  if (!isArray(list)) {
+	    throw new TypeError('"list" argument must be an Array of Buffers');
+	  }
+
+	  if (list.length === 0) {
+	    return Buffer.alloc(0);
+	  }
+
+	  var i;
+
+	  if (length === undefined) {
+	    length = 0;
+
+	    for (i = 0; i < list.length; ++i) {
+	      length += list[i].length;
+	    }
+	  }
+
+	  var buffer = Buffer.allocUnsafe(length);
+	  var pos = 0;
+
+	  for (i = 0; i < list.length; ++i) {
+	    var buf = list[i];
+
+	    if (!internalIsBuffer(buf)) {
+	      throw new TypeError('"list" argument must be an Array of Buffers');
+	    }
+
+	    buf.copy(buffer, pos);
+	    pos += buf.length;
+	  }
+
+	  return buffer;
+	};
+
+	function byteLength(string, encoding) {
+	  if (internalIsBuffer(string)) {
+	    return string.length;
+	  }
+
+	  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' && (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
+	    return string.byteLength;
+	  }
+
+	  if (typeof string !== 'string') {
+	    string = '' + string;
+	  }
+
+	  var len = string.length;
+	  if (len === 0) return 0; // Use a for loop to avoid recursion
+
+	  var loweredCase = false;
+
+	  for (;;) {
+	    switch (encoding) {
+	      case 'ascii':
+	      case 'latin1':
+	      case 'binary':
+	        return len;
+
+	      case 'utf8':
+	      case 'utf-8':
+	      case undefined:
+	        return utf8ToBytes(string).length;
+
+	      case 'ucs2':
+	      case 'ucs-2':
+	      case 'utf16le':
+	      case 'utf-16le':
+	        return len * 2;
+
+	      case 'hex':
+	        return len >>> 1;
+
+	      case 'base64':
+	        return base64ToBytes(string).length;
+
+	      default:
+	        if (loweredCase) return utf8ToBytes(string).length; // assume utf8
+
+	        encoding = ('' + encoding).toLowerCase();
+	        loweredCase = true;
+	    }
+	  }
+	}
+
+	Buffer.byteLength = byteLength;
+
+	function slowToString(encoding, start, end) {
+	  var loweredCase = false; // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+	  // property of a typed array.
+	  // This behaves neither like String nor Uint8Array in that we set start/end
+	  // to their upper/lower bounds if the value passed is out of range.
+	  // undefined is handled specially as per ECMA-262 6th Edition,
+	  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+
+	  if (start === undefined || start < 0) {
+	    start = 0;
+	  } // Return early if start > this.length. Done here to prevent potential uint32
+	  // coercion fail below.
+
+
+	  if (start > this.length) {
+	    return '';
+	  }
+
+	  if (end === undefined || end > this.length) {
+	    end = this.length;
+	  }
+
+	  if (end <= 0) {
+	    return '';
+	  } // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+
+
+	  end >>>= 0;
+	  start >>>= 0;
+
+	  if (end <= start) {
+	    return '';
+	  }
+
+	  if (!encoding) encoding = 'utf8';
+
+	  while (true) {
+	    switch (encoding) {
+	      case 'hex':
+	        return hexSlice(this, start, end);
+
+	      case 'utf8':
+	      case 'utf-8':
+	        return utf8Slice(this, start, end);
+
+	      case 'ascii':
+	        return asciiSlice(this, start, end);
+
+	      case 'latin1':
+	      case 'binary':
+	        return latin1Slice(this, start, end);
+
+	      case 'base64':
+	        return base64Slice(this, start, end);
+
+	      case 'ucs2':
+	      case 'ucs-2':
+	      case 'utf16le':
+	      case 'utf-16le':
+	        return utf16leSlice(this, start, end);
+
+	      default:
+	        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);
+	        encoding = (encoding + '').toLowerCase();
+	        loweredCase = true;
+	    }
+	  }
+	} // The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
+	// Buffer instances.
+
+
+	Buffer.prototype._isBuffer = true;
+
+	function swap(b, n, m) {
+	  var i = b[n];
+	  b[n] = b[m];
+	  b[m] = i;
+	}
+
+	Buffer.prototype.swap16 = function swap16() {
+	  var len = this.length;
+
+	  if (len % 2 !== 0) {
+	    throw new RangeError('Buffer size must be a multiple of 16-bits');
+	  }
+
+	  for (var i = 0; i < len; i += 2) {
+	    swap(this, i, i + 1);
+	  }
+
+	  return this;
+	};
+
+	Buffer.prototype.swap32 = function swap32() {
+	  var len = this.length;
+
+	  if (len % 4 !== 0) {
+	    throw new RangeError('Buffer size must be a multiple of 32-bits');
+	  }
+
+	  for (var i = 0; i < len; i += 4) {
+	    swap(this, i, i + 3);
+	    swap(this, i + 1, i + 2);
+	  }
+
+	  return this;
+	};
+
+	Buffer.prototype.swap64 = function swap64() {
+	  var len = this.length;
+
+	  if (len % 8 !== 0) {
+	    throw new RangeError('Buffer size must be a multiple of 64-bits');
+	  }
+
+	  for (var i = 0; i < len; i += 8) {
+	    swap(this, i, i + 7);
+	    swap(this, i + 1, i + 6);
+	    swap(this, i + 2, i + 5);
+	    swap(this, i + 3, i + 4);
+	  }
+
+	  return this;
+	};
+
+	Buffer.prototype.toString = function toString() {
+	  var length = this.length | 0;
+	  if (length === 0) return '';
+	  if (arguments.length === 0) return utf8Slice(this, 0, length);
+	  return slowToString.apply(this, arguments);
+	};
+
+	Buffer.prototype.equals = function equals(b) {
+	  if (!internalIsBuffer(b)) throw new TypeError('Argument must be a Buffer');
+	  if (this === b) return true;
+	  return Buffer.compare(this, b) === 0;
+	};
+
+	Buffer.prototype.inspect = function inspect() {
+	  var str = '';
+	  var max = INSPECT_MAX_BYTES;
+
+	  if (this.length > 0) {
+	    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ');
+	    if (this.length > max) str += ' ... ';
+	  }
+
+	  return '<Buffer ' + str + '>';
+	};
+
+	Buffer.prototype.compare = function compare(target, start, end, thisStart, thisEnd) {
+	  if (!internalIsBuffer(target)) {
+	    throw new TypeError('Argument must be a Buffer');
+	  }
+
+	  if (start === undefined) {
+	    start = 0;
+	  }
+
+	  if (end === undefined) {
+	    end = target ? target.length : 0;
+	  }
+
+	  if (thisStart === undefined) {
+	    thisStart = 0;
+	  }
+
+	  if (thisEnd === undefined) {
+	    thisEnd = this.length;
+	  }
+
+	  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+	    throw new RangeError('out of range index');
+	  }
+
+	  if (thisStart >= thisEnd && start >= end) {
+	    return 0;
+	  }
+
+	  if (thisStart >= thisEnd) {
+	    return -1;
+	  }
+
+	  if (start >= end) {
+	    return 1;
+	  }
+
+	  start >>>= 0;
+	  end >>>= 0;
+	  thisStart >>>= 0;
+	  thisEnd >>>= 0;
+	  if (this === target) return 0;
+	  var x = thisEnd - thisStart;
+	  var y = end - start;
+	  var len = Math.min(x, y);
+	  var thisCopy = this.slice(thisStart, thisEnd);
+	  var targetCopy = target.slice(start, end);
+
+	  for (var i = 0; i < len; ++i) {
+	    if (thisCopy[i] !== targetCopy[i]) {
+	      x = thisCopy[i];
+	      y = targetCopy[i];
+	      break;
+	    }
+	  }
+
+	  if (x < y) return -1;
+	  if (y < x) return 1;
+	  return 0;
+	}; // Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+	// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+	//
+	// Arguments:
+	// - buffer - a Buffer to search
+	// - val - a string, Buffer, or number
+	// - byteOffset - an index into `buffer`; will be clamped to an int32
+	// - encoding - an optional encoding, relevant is val is a string
+	// - dir - true for indexOf, false for lastIndexOf
+
+
+	function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {
+	  // Empty buffer means no match
+	  if (buffer.length === 0) return -1; // Normalize byteOffset
+
+	  if (typeof byteOffset === 'string') {
+	    encoding = byteOffset;
+	    byteOffset = 0;
+	  } else if (byteOffset > 0x7fffffff) {
+	    byteOffset = 0x7fffffff;
+	  } else if (byteOffset < -0x80000000) {
+	    byteOffset = -0x80000000;
+	  }
+
+	  byteOffset = +byteOffset; // Coerce to Number.
+
+	  if (isNaN(byteOffset)) {
+	    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+	    byteOffset = dir ? 0 : buffer.length - 1;
+	  } // Normalize byteOffset: negative offsets start from the end of the buffer
+
+
+	  if (byteOffset < 0) byteOffset = buffer.length + byteOffset;
+
+	  if (byteOffset >= buffer.length) {
+	    if (dir) return -1;else byteOffset = buffer.length - 1;
+	  } else if (byteOffset < 0) {
+	    if (dir) byteOffset = 0;else return -1;
+	  } // Normalize val
+
+
+	  if (typeof val === 'string') {
+	    val = Buffer.from(val, encoding);
+	  } // Finally, search either indexOf (if dir is true) or lastIndexOf
+
+
+	  if (internalIsBuffer(val)) {
+	    // Special case: looking for empty string/buffer always fails
+	    if (val.length === 0) {
+	      return -1;
+	    }
+
+	    return arrayIndexOf(buffer, val, byteOffset, encoding, dir);
+	  } else if (typeof val === 'number') {
+	    val = val & 0xFF; // Search for a byte value [0-255]
+
+	    if (Buffer.TYPED_ARRAY_SUPPORT && typeof Uint8Array.prototype.indexOf === 'function') {
+	      if (dir) {
+	        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset);
+	      } else {
+	        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);
+	      }
+	    }
+
+	    return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);
+	  }
+
+	  throw new TypeError('val must be string, number or Buffer');
+	}
+
+	function arrayIndexOf(arr, val, byteOffset, encoding, dir) {
+	  var indexSize = 1;
+	  var arrLength = arr.length;
+	  var valLength = val.length;
+
+	  if (encoding !== undefined) {
+	    encoding = String(encoding).toLowerCase();
+
+	    if (encoding === 'ucs2' || encoding === 'ucs-2' || encoding === 'utf16le' || encoding === 'utf-16le') {
+	      if (arr.length < 2 || val.length < 2) {
+	        return -1;
+	      }
+
+	      indexSize = 2;
+	      arrLength /= 2;
+	      valLength /= 2;
+	      byteOffset /= 2;
+	    }
+	  }
+
+	  function read(buf, i) {
+	    if (indexSize === 1) {
+	      return buf[i];
+	    } else {
+	      return buf.readUInt16BE(i * indexSize);
+	    }
+	  }
+
+	  var i;
+
+	  if (dir) {
+	    var foundIndex = -1;
+
+	    for (i = byteOffset; i < arrLength; i++) {
+	      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+	        if (foundIndex === -1) foundIndex = i;
+	        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize;
+	      } else {
+	        if (foundIndex !== -1) i -= i - foundIndex;
+	        foundIndex = -1;
+	      }
+	    }
+	  } else {
+	    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;
+
+	    for (i = byteOffset; i >= 0; i--) {
+	      var found = true;
+
+	      for (var j = 0; j < valLength; j++) {
+	        if (read(arr, i + j) !== read(val, j)) {
+	          found = false;
+	          break;
+	        }
+	      }
+
+	      if (found) return i;
+	    }
+	  }
+
+	  return -1;
+	}
+
+	Buffer.prototype.includes = function includes(val, byteOffset, encoding) {
+	  return this.indexOf(val, byteOffset, encoding) !== -1;
+	};
+
+	Buffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {
+	  return bidirectionalIndexOf(this, val, byteOffset, encoding, true);
+	};
+
+	Buffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {
+	  return bidirectionalIndexOf(this, val, byteOffset, encoding, false);
+	};
+
+	function hexWrite(buf, string, offset, length) {
+	  offset = Number(offset) || 0;
+	  var remaining = buf.length - offset;
+
+	  if (!length) {
+	    length = remaining;
+	  } else {
+	    length = Number(length);
+
+	    if (length > remaining) {
+	      length = remaining;
+	    }
+	  } // must be an even number of digits
+
+
+	  var strLen = string.length;
+	  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string');
+
+	  if (length > strLen / 2) {
+	    length = strLen / 2;
+	  }
+
+	  for (var i = 0; i < length; ++i) {
+	    var parsed = parseInt(string.substr(i * 2, 2), 16);
+	    if (isNaN(parsed)) return i;
+	    buf[offset + i] = parsed;
+	  }
+
+	  return i;
+	}
+
+	function utf8Write(buf, string, offset, length) {
+	  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length);
+	}
+
+	function asciiWrite(buf, string, offset, length) {
+	  return blitBuffer(asciiToBytes(string), buf, offset, length);
+	}
+
+	function latin1Write(buf, string, offset, length) {
+	  return asciiWrite(buf, string, offset, length);
+	}
+
+	function base64Write(buf, string, offset, length) {
+	  return blitBuffer(base64ToBytes(string), buf, offset, length);
+	}
+
+	function ucs2Write(buf, string, offset, length) {
+	  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length);
+	}
+
+	Buffer.prototype.write = function write(string, offset, length, encoding) {
+	  // Buffer#write(string)
+	  if (offset === undefined) {
+	    encoding = 'utf8';
+	    length = this.length;
+	    offset = 0; // Buffer#write(string, encoding)
+	  } else if (length === undefined && typeof offset === 'string') {
+	    encoding = offset;
+	    length = this.length;
+	    offset = 0; // Buffer#write(string, offset[, length][, encoding])
+	  } else if (isFinite(offset)) {
+	    offset = offset | 0;
+
+	    if (isFinite(length)) {
+	      length = length | 0;
+	      if (encoding === undefined) encoding = 'utf8';
+	    } else {
+	      encoding = length;
+	      length = undefined;
+	    } // legacy write(string, encoding, offset, length) - remove in v0.13
+
+	  } else {
+	    throw new Error('Buffer.write(string, encoding, offset[, length]) is no longer supported');
+	  }
+
+	  var remaining = this.length - offset;
+	  if (length === undefined || length > remaining) length = remaining;
+
+	  if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {
+	    throw new RangeError('Attempt to write outside buffer bounds');
+	  }
+
+	  if (!encoding) encoding = 'utf8';
+	  var loweredCase = false;
+
+	  for (;;) {
+	    switch (encoding) {
+	      case 'hex':
+	        return hexWrite(this, string, offset, length);
+
+	      case 'utf8':
+	      case 'utf-8':
+	        return utf8Write(this, string, offset, length);
+
+	      case 'ascii':
+	        return asciiWrite(this, string, offset, length);
+
+	      case 'latin1':
+	      case 'binary':
+	        return latin1Write(this, string, offset, length);
+
+	      case 'base64':
+	        // Warning: maxLength not taken into account in base64Write
+	        return base64Write(this, string, offset, length);
+
+	      case 'ucs2':
+	      case 'ucs-2':
+	      case 'utf16le':
+	      case 'utf-16le':
+	        return ucs2Write(this, string, offset, length);
+
+	      default:
+	        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);
+	        encoding = ('' + encoding).toLowerCase();
+	        loweredCase = true;
+	    }
+	  }
+	};
+
+	Buffer.prototype.toJSON = function toJSON() {
+	  return {
+	    type: 'Buffer',
+	    data: Array.prototype.slice.call(this._arr || this, 0)
+	  };
+	};
+
+	function base64Slice(buf, start, end) {
+	  if (start === 0 && end === buf.length) {
+	    return fromByteArray(buf);
+	  } else {
+	    return fromByteArray(buf.slice(start, end));
+	  }
+	}
+
+	function utf8Slice(buf, start, end) {
+	  end = Math.min(buf.length, end);
+	  var res = [];
+	  var i = start;
+
+	  while (i < end) {
+	    var firstByte = buf[i];
+	    var codePoint = null;
+	    var bytesPerSequence = firstByte > 0xEF ? 4 : firstByte > 0xDF ? 3 : firstByte > 0xBF ? 2 : 1;
+
+	    if (i + bytesPerSequence <= end) {
+	      var secondByte, thirdByte, fourthByte, tempCodePoint;
+
+	      switch (bytesPerSequence) {
+	        case 1:
+	          if (firstByte < 0x80) {
+	            codePoint = firstByte;
+	          }
+
+	          break;
+
+	        case 2:
+	          secondByte = buf[i + 1];
+
+	          if ((secondByte & 0xC0) === 0x80) {
+	            tempCodePoint = (firstByte & 0x1F) << 0x6 | secondByte & 0x3F;
+
+	            if (tempCodePoint > 0x7F) {
+	              codePoint = tempCodePoint;
+	            }
+	          }
+
+	          break;
+
+	        case 3:
+	          secondByte = buf[i + 1];
+	          thirdByte = buf[i + 2];
+
+	          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+	            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | thirdByte & 0x3F;
+
+	            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+	              codePoint = tempCodePoint;
+	            }
+	          }
+
+	          break;
+
+	        case 4:
+	          secondByte = buf[i + 1];
+	          thirdByte = buf[i + 2];
+	          fourthByte = buf[i + 3];
+
+	          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+	            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | fourthByte & 0x3F;
+
+	            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+	              codePoint = tempCodePoint;
+	            }
+	          }
+
+	      }
+	    }
+
+	    if (codePoint === null) {
+	      // we did not generate a valid codePoint so insert a
+	      // replacement char (U+FFFD) and advance only 1 byte
+	      codePoint = 0xFFFD;
+	      bytesPerSequence = 1;
+	    } else if (codePoint > 0xFFFF) {
+	      // encode to utf16 (surrogate pair dance)
+	      codePoint -= 0x10000;
+	      res.push(codePoint >>> 10 & 0x3FF | 0xD800);
+	      codePoint = 0xDC00 | codePoint & 0x3FF;
+	    }
+
+	    res.push(codePoint);
+	    i += bytesPerSequence;
+	  }
+
+	  return decodeCodePointsArray(res);
+	} // Based on http://stackoverflow.com/a/22747272/680742, the browser with
+	// the lowest limit is Chrome, with 0x10000 args.
+	// We go 1 magnitude less, for safety
+
+
+	var MAX_ARGUMENTS_LENGTH = 0x1000;
+
+	function decodeCodePointsArray(codePoints) {
+	  var len = codePoints.length;
+
+	  if (len <= MAX_ARGUMENTS_LENGTH) {
+	    return String.fromCharCode.apply(String, codePoints); // avoid extra slice()
+	  } // Decode in chunks to avoid "call stack size exceeded".
+
+
+	  var res = '';
+	  var i = 0;
+
+	  while (i < len) {
+	    res += String.fromCharCode.apply(String, codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH));
+	  }
+
+	  return res;
+	}
+
+	function asciiSlice(buf, start, end) {
+	  var ret = '';
+	  end = Math.min(buf.length, end);
+
+	  for (var i = start; i < end; ++i) {
+	    ret += String.fromCharCode(buf[i] & 0x7F);
+	  }
+
+	  return ret;
+	}
+
+	function latin1Slice(buf, start, end) {
+	  var ret = '';
+	  end = Math.min(buf.length, end);
+
+	  for (var i = start; i < end; ++i) {
+	    ret += String.fromCharCode(buf[i]);
+	  }
+
+	  return ret;
+	}
+
+	function hexSlice(buf, start, end) {
+	  var len = buf.length;
+	  if (!start || start < 0) start = 0;
+	  if (!end || end < 0 || end > len) end = len;
+	  var out = '';
+
+	  for (var i = start; i < end; ++i) {
+	    out += toHex(buf[i]);
+	  }
+
+	  return out;
+	}
+
+	function utf16leSlice(buf, start, end) {
+	  var bytes = buf.slice(start, end);
+	  var res = '';
+
+	  for (var i = 0; i < bytes.length; i += 2) {
+	    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
+	  }
+
+	  return res;
+	}
+
+	Buffer.prototype.slice = function slice(start, end) {
+	  var len = this.length;
+	  start = ~~start;
+	  end = end === undefined ? len : ~~end;
+
+	  if (start < 0) {
+	    start += len;
+	    if (start < 0) start = 0;
+	  } else if (start > len) {
+	    start = len;
+	  }
+
+	  if (end < 0) {
+	    end += len;
+	    if (end < 0) end = 0;
+	  } else if (end > len) {
+	    end = len;
+	  }
+
+	  if (end < start) end = start;
+	  var newBuf;
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    newBuf = this.subarray(start, end);
+	    newBuf.__proto__ = Buffer.prototype;
+	  } else {
+	    var sliceLen = end - start;
+	    newBuf = new Buffer(sliceLen, undefined);
+
+	    for (var i = 0; i < sliceLen; ++i) {
+	      newBuf[i] = this[i + start];
+	    }
+	  }
+
+	  return newBuf;
+	};
+	/*
+	 * Need to make sure that buffer isn't trying to write out of bounds.
+	 */
+
+
+	function checkOffset(offset, ext, length) {
+	  if (offset % 1 !== 0 || offset < 0) throw new RangeError('offset is not uint');
+	  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length');
+	}
+
+	Buffer.prototype.readUIntLE = function readUIntLE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+	  if (!noAssert) checkOffset(offset, byteLength, this.length);
+	  var val = this[offset];
+	  var mul = 1;
+	  var i = 0;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    val += this[offset + i] * mul;
+	  }
+
+	  return val;
+	};
+
+	Buffer.prototype.readUIntBE = function readUIntBE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+
+	  if (!noAssert) {
+	    checkOffset(offset, byteLength, this.length);
+	  }
+
+	  var val = this[offset + --byteLength];
+	  var mul = 1;
+
+	  while (byteLength > 0 && (mul *= 0x100)) {
+	    val += this[offset + --byteLength] * mul;
+	  }
+
+	  return val;
+	};
+
+	Buffer.prototype.readUInt8 = function readUInt8(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 1, this.length);
+	  return this[offset];
+	};
+
+	Buffer.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 2, this.length);
+	  return this[offset] | this[offset + 1] << 8;
+	};
+
+	Buffer.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 2, this.length);
+	  return this[offset] << 8 | this[offset + 1];
+	};
+
+	Buffer.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 4, this.length);
+	  return (this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16) + this[offset + 3] * 0x1000000;
+	};
+
+	Buffer.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 4, this.length);
+	  return this[offset] * 0x1000000 + (this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3]);
+	};
+
+	Buffer.prototype.readIntLE = function readIntLE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+	  if (!noAssert) checkOffset(offset, byteLength, this.length);
+	  var val = this[offset];
+	  var mul = 1;
+	  var i = 0;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    val += this[offset + i] * mul;
+	  }
+
+	  mul *= 0x80;
+	  if (val >= mul) val -= Math.pow(2, 8 * byteLength);
+	  return val;
+	};
+
+	Buffer.prototype.readIntBE = function readIntBE(offset, byteLength, noAssert) {
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+	  if (!noAssert) checkOffset(offset, byteLength, this.length);
+	  var i = byteLength;
+	  var mul = 1;
+	  var val = this[offset + --i];
+
+	  while (i > 0 && (mul *= 0x100)) {
+	    val += this[offset + --i] * mul;
+	  }
+
+	  mul *= 0x80;
+	  if (val >= mul) val -= Math.pow(2, 8 * byteLength);
+	  return val;
+	};
+
+	Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 1, this.length);
+	  if (!(this[offset] & 0x80)) return this[offset];
+	  return (0xff - this[offset] + 1) * -1;
+	};
+
+	Buffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 2, this.length);
+	  var val = this[offset] | this[offset + 1] << 8;
+	  return val & 0x8000 ? val | 0xFFFF0000 : val;
+	};
+
+	Buffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 2, this.length);
+	  var val = this[offset + 1] | this[offset] << 8;
+	  return val & 0x8000 ? val | 0xFFFF0000 : val;
+	};
+
+	Buffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 4, this.length);
+	  return this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16 | this[offset + 3] << 24;
+	};
+
+	Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 4, this.length);
+	  return this[offset] << 24 | this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3];
+	};
+
+	Buffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 4, this.length);
+	  return read(this, offset, true, 23, 4);
+	};
+
+	Buffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 4, this.length);
+	  return read(this, offset, false, 23, 4);
+	};
+
+	Buffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 8, this.length);
+	  return read(this, offset, true, 52, 8);
+	};
+
+	Buffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
+	  if (!noAssert) checkOffset(offset, 8, this.length);
+	  return read(this, offset, false, 52, 8);
+	};
+
+	function checkInt(buf, value, offset, ext, max, min) {
+	  if (!internalIsBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance');
+	  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds');
+	  if (offset + ext > buf.length) throw new RangeError('Index out of range');
+	}
+
+	Buffer.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+
+	  if (!noAssert) {
+	    var maxBytes = Math.pow(2, 8 * byteLength) - 1;
+	    checkInt(this, value, offset, byteLength, maxBytes, 0);
+	  }
+
+	  var mul = 1;
+	  var i = 0;
+	  this[offset] = value & 0xFF;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    this[offset + i] = value / mul & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  byteLength = byteLength | 0;
+
+	  if (!noAssert) {
+	    var maxBytes = Math.pow(2, 8 * byteLength) - 1;
+	    checkInt(this, value, offset, byteLength, maxBytes, 0);
+	  }
+
+	  var i = byteLength - 1;
+	  var mul = 1;
+	  this[offset + i] = value & 0xFF;
+
+	  while (--i >= 0 && (mul *= 0x100)) {
+	    this[offset + i] = value / mul & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0);
+	  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value);
+	  this[offset] = value & 0xff;
+	  return offset + 1;
+	};
+
+	function objectWriteUInt16(buf, value, offset, littleEndian) {
+	  if (value < 0) value = 0xffff + value + 1;
+
+	  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
+	    buf[offset + i] = (value & 0xff << 8 * (littleEndian ? i : 1 - i)) >>> (littleEndian ? i : 1 - i) * 8;
+	  }
+	}
+
+	Buffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value & 0xff;
+	    this[offset + 1] = value >>> 8;
+	  } else {
+	    objectWriteUInt16(this, value, offset, true);
+	  }
+
+	  return offset + 2;
+	};
+
+	Buffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 8;
+	    this[offset + 1] = value & 0xff;
+	  } else {
+	    objectWriteUInt16(this, value, offset, false);
+	  }
+
+	  return offset + 2;
+	};
+
+	function objectWriteUInt32(buf, value, offset, littleEndian) {
+	  if (value < 0) value = 0xffffffff + value + 1;
+
+	  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
+	    buf[offset + i] = value >>> (littleEndian ? i : 3 - i) * 8 & 0xff;
+	  }
+	}
+
+	Buffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset + 3] = value >>> 24;
+	    this[offset + 2] = value >>> 16;
+	    this[offset + 1] = value >>> 8;
+	    this[offset] = value & 0xff;
+	  } else {
+	    objectWriteUInt32(this, value, offset, true);
+	  }
+
+	  return offset + 4;
+	};
+
+	Buffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 24;
+	    this[offset + 1] = value >>> 16;
+	    this[offset + 2] = value >>> 8;
+	    this[offset + 3] = value & 0xff;
+	  } else {
+	    objectWriteUInt32(this, value, offset, false);
+	  }
+
+	  return offset + 4;
+	};
+
+	Buffer.prototype.writeIntLE = function writeIntLE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+
+	  if (!noAssert) {
+	    var limit = Math.pow(2, 8 * byteLength - 1);
+	    checkInt(this, value, offset, byteLength, limit - 1, -limit);
+	  }
+
+	  var i = 0;
+	  var mul = 1;
+	  var sub = 0;
+	  this[offset] = value & 0xFF;
+
+	  while (++i < byteLength && (mul *= 0x100)) {
+	    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+	      sub = 1;
+	    }
+
+	    this[offset + i] = (value / mul >> 0) - sub & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer.prototype.writeIntBE = function writeIntBE(value, offset, byteLength, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+
+	  if (!noAssert) {
+	    var limit = Math.pow(2, 8 * byteLength - 1);
+	    checkInt(this, value, offset, byteLength, limit - 1, -limit);
+	  }
+
+	  var i = byteLength - 1;
+	  var mul = 1;
+	  var sub = 0;
+	  this[offset + i] = value & 0xFF;
+
+	  while (--i >= 0 && (mul *= 0x100)) {
+	    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+	      sub = 1;
+	    }
+
+	    this[offset + i] = (value / mul >> 0) - sub & 0xFF;
+	  }
+
+	  return offset + byteLength;
+	};
+
+	Buffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80);
+	  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value);
+	  if (value < 0) value = 0xff + value + 1;
+	  this[offset] = value & 0xff;
+	  return offset + 1;
+	};
+
+	Buffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value & 0xff;
+	    this[offset + 1] = value >>> 8;
+	  } else {
+	    objectWriteUInt16(this, value, offset, true);
+	  }
+
+	  return offset + 2;
+	};
+
+	Buffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 8;
+	    this[offset + 1] = value & 0xff;
+	  } else {
+	    objectWriteUInt16(this, value, offset, false);
+	  }
+
+	  return offset + 2;
+	};
+
+	Buffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value & 0xff;
+	    this[offset + 1] = value >>> 8;
+	    this[offset + 2] = value >>> 16;
+	    this[offset + 3] = value >>> 24;
+	  } else {
+	    objectWriteUInt32(this, value, offset, true);
+	  }
+
+	  return offset + 4;
+	};
+
+	Buffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
+	  value = +value;
+	  offset = offset | 0;
+	  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
+	  if (value < 0) value = 0xffffffff + value + 1;
+
+	  if (Buffer.TYPED_ARRAY_SUPPORT) {
+	    this[offset] = value >>> 24;
+	    this[offset + 1] = value >>> 16;
+	    this[offset + 2] = value >>> 8;
+	    this[offset + 3] = value & 0xff;
+	  } else {
+	    objectWriteUInt32(this, value, offset, false);
+	  }
+
+	  return offset + 4;
+	};
+
+	function checkIEEE754(buf, value, offset, ext, max, min) {
+	  if (offset + ext > buf.length) throw new RangeError('Index out of range');
+	  if (offset < 0) throw new RangeError('Index out of range');
+	}
+
+	function writeFloat(buf, value, offset, littleEndian, noAssert) {
+	  if (!noAssert) {
+	    checkIEEE754(buf, value, offset, 4);
+	  }
+
+	  write(buf, value, offset, littleEndian, 23, 4);
+	  return offset + 4;
+	}
+
+	Buffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
+	  return writeFloat(this, value, offset, true, noAssert);
+	};
+
+	Buffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
+	  return writeFloat(this, value, offset, false, noAssert);
+	};
+
+	function writeDouble(buf, value, offset, littleEndian, noAssert) {
+	  if (!noAssert) {
+	    checkIEEE754(buf, value, offset, 8);
+	  }
+
+	  write(buf, value, offset, littleEndian, 52, 8);
+	  return offset + 8;
+	}
+
+	Buffer.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {
+	  return writeDouble(this, value, offset, true, noAssert);
+	};
+
+	Buffer.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {
+	  return writeDouble(this, value, offset, false, noAssert);
+	}; // copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+
+
+	Buffer.prototype.copy = function copy(target, targetStart, start, end) {
+	  if (!start) start = 0;
+	  if (!end && end !== 0) end = this.length;
+	  if (targetStart >= target.length) targetStart = target.length;
+	  if (!targetStart) targetStart = 0;
+	  if (end > 0 && end < start) end = start; // Copy 0 bytes; we're done
+
+	  if (end === start) return 0;
+	  if (target.length === 0 || this.length === 0) return 0; // Fatal error conditions
+
+	  if (targetStart < 0) {
+	    throw new RangeError('targetStart out of bounds');
+	  }
+
+	  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds');
+	  if (end < 0) throw new RangeError('sourceEnd out of bounds'); // Are we oob?
+
+	  if (end > this.length) end = this.length;
+
+	  if (target.length - targetStart < end - start) {
+	    end = target.length - targetStart + start;
+	  }
+
+	  var len = end - start;
+	  var i;
+
+	  if (this === target && start < targetStart && targetStart < end) {
+	    // descending copy from end
+	    for (i = len - 1; i >= 0; --i) {
+	      target[i + targetStart] = this[i + start];
+	    }
+	  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
+	    // ascending copy from start
+	    for (i = 0; i < len; ++i) {
+	      target[i + targetStart] = this[i + start];
+	    }
+	  } else {
+	    Uint8Array.prototype.set.call(target, this.subarray(start, start + len), targetStart);
+	  }
+
+	  return len;
+	}; // Usage:
+	//    buffer.fill(number[, offset[, end]])
+	//    buffer.fill(buffer[, offset[, end]])
+	//    buffer.fill(string[, offset[, end]][, encoding])
+
+
+	Buffer.prototype.fill = function fill(val, start, end, encoding) {
+	  // Handle string cases:
+	  if (typeof val === 'string') {
+	    if (typeof start === 'string') {
+	      encoding = start;
+	      start = 0;
+	      end = this.length;
+	    } else if (typeof end === 'string') {
+	      encoding = end;
+	      end = this.length;
+	    }
+
+	    if (val.length === 1) {
+	      var code = val.charCodeAt(0);
+
+	      if (code < 256) {
+	        val = code;
+	      }
+	    }
+
+	    if (encoding !== undefined && typeof encoding !== 'string') {
+	      throw new TypeError('encoding must be a string');
+	    }
+
+	    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+	      throw new TypeError('Unknown encoding: ' + encoding);
+	    }
+	  } else if (typeof val === 'number') {
+	    val = val & 255;
+	  } // Invalid ranges are not set to a default, so can range check early.
+
+
+	  if (start < 0 || this.length < start || this.length < end) {
+	    throw new RangeError('Out of range index');
+	  }
+
+	  if (end <= start) {
+	    return this;
+	  }
+
+	  start = start >>> 0;
+	  end = end === undefined ? this.length : end >>> 0;
+	  if (!val) val = 0;
+	  var i;
+
+	  if (typeof val === 'number') {
+	    for (i = start; i < end; ++i) {
+	      this[i] = val;
+	    }
+	  } else {
+	    var bytes = internalIsBuffer(val) ? val : utf8ToBytes(new Buffer(val, encoding).toString());
+	    var len = bytes.length;
+
+	    for (i = 0; i < end - start; ++i) {
+	      this[i + start] = bytes[i % len];
+	    }
+	  }
+
+	  return this;
+	}; // HELPER FUNCTIONS
+	// ================
+
+
+	var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g;
+
+	function base64clean(str) {
+	  // Node strips out invalid characters like \n and \t from the string, base64-js does not
+	  str = stringtrim(str).replace(INVALID_BASE64_RE, ''); // Node converts strings with length < 2 to ''
+
+	  if (str.length < 2) return ''; // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+
+	  while (str.length % 4 !== 0) {
+	    str = str + '=';
+	  }
+
+	  return str;
+	}
+
+	function stringtrim(str) {
+	  if (str.trim) return str.trim();
+	  return str.replace(/^\s+|\s+$/g, '');
+	}
+
+	function toHex(n) {
+	  if (n < 16) return '0' + n.toString(16);
+	  return n.toString(16);
+	}
+
+	function utf8ToBytes(string, units) {
+	  units = units || Infinity;
+	  var codePoint;
+	  var length = string.length;
+	  var leadSurrogate = null;
+	  var bytes = [];
+
+	  for (var i = 0; i < length; ++i) {
+	    codePoint = string.charCodeAt(i); // is surrogate component
+
+	    if (codePoint > 0xD7FF && codePoint < 0xE000) {
+	      // last char was a lead
+	      if (!leadSurrogate) {
+	        // no lead yet
+	        if (codePoint > 0xDBFF) {
+	          // unexpected trail
+	          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	          continue;
+	        } else if (i + 1 === length) {
+	          // unpaired lead
+	          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	          continue;
+	        } // valid lead
+
+
+	        leadSurrogate = codePoint;
+	        continue;
+	      } // 2 leads in a row
+
+
+	      if (codePoint < 0xDC00) {
+	        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	        leadSurrogate = codePoint;
+	        continue;
+	      } // valid surrogate pair
+
+
+	      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;
+	    } else if (leadSurrogate) {
+	      // valid bmp char, but last char was a lead
+	      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
+	    }
+
+	    leadSurrogate = null; // encode utf8
+
+	    if (codePoint < 0x80) {
+	      if ((units -= 1) < 0) break;
+	      bytes.push(codePoint);
+	    } else if (codePoint < 0x800) {
+	      if ((units -= 2) < 0) break;
+	      bytes.push(codePoint >> 0x6 | 0xC0, codePoint & 0x3F | 0x80);
+	    } else if (codePoint < 0x10000) {
+	      if ((units -= 3) < 0) break;
+	      bytes.push(codePoint >> 0xC | 0xE0, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);
+	    } else if (codePoint < 0x110000) {
+	      if ((units -= 4) < 0) break;
+	      bytes.push(codePoint >> 0x12 | 0xF0, codePoint >> 0xC & 0x3F | 0x80, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);
+	    } else {
+	      throw new Error('Invalid code point');
+	    }
+	  }
+
+	  return bytes;
+	}
+
+	function asciiToBytes(str) {
+	  var byteArray = [];
+
+	  for (var i = 0; i < str.length; ++i) {
+	    // Node's code seems to be doing this and not & 0x7F..
+	    byteArray.push(str.charCodeAt(i) & 0xFF);
+	  }
+
+	  return byteArray;
+	}
+
+	function utf16leToBytes(str, units) {
+	  var c, hi, lo;
+	  var byteArray = [];
+
+	  for (var i = 0; i < str.length; ++i) {
+	    if ((units -= 2) < 0) break;
+	    c = str.charCodeAt(i);
+	    hi = c >> 8;
+	    lo = c % 256;
+	    byteArray.push(lo);
+	    byteArray.push(hi);
+	  }
+
+	  return byteArray;
+	}
+
+	function base64ToBytes(str) {
+	  return toByteArray(base64clean(str));
+	}
+
+	function blitBuffer(src, dst, offset, length) {
+	  for (var i = 0; i < length; ++i) {
+	    if (i + offset >= dst.length || i >= src.length) break;
+	    dst[i + offset] = src[i];
+	  }
+
+	  return i;
+	}
+
+	function isnan(val) {
+	  return val !== val; // eslint-disable-line no-self-compare
+	} // the following is from is-buffer, also by Feross Aboukhadijeh and with same lisence
+	// The _isBuffer check is for Safari 5-7 support, because it's missing
+	// Object.prototype.constructor. Remove this eventually
+
+
+	function isBuffer(obj) {
+	  return obj != null && (!!obj._isBuffer || isFastBuffer(obj) || isSlowBuffer(obj));
+	}
+
+	function isFastBuffer(obj) {
+	  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj);
+	} // For Node v0.10 support. Remove this eventually.
+
+
+	function isSlowBuffer(obj) {
+	  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isFastBuffer(obj.slice(0, 0));
+	}
+
+	function BufferList() {
+	  this.head = null;
+	  this.tail = null;
+	  this.length = 0;
+	}
+
+	BufferList.prototype.push = function (v) {
+	  var entry = {
+	    data: v,
+	    next: null
+	  };
+	  if (this.length > 0) this.tail.next = entry;else this.head = entry;
+	  this.tail = entry;
+	  ++this.length;
+	};
+
+	BufferList.prototype.unshift = function (v) {
+	  var entry = {
+	    data: v,
+	    next: this.head
+	  };
+	  if (this.length === 0) this.tail = entry;
+	  this.head = entry;
+	  ++this.length;
+	};
+
+	BufferList.prototype.shift = function () {
+	  if (this.length === 0) return;
+	  var ret = this.head.data;
+	  if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+	  --this.length;
+	  return ret;
+	};
+
+	BufferList.prototype.clear = function () {
+	  this.head = this.tail = null;
+	  this.length = 0;
+	};
+
+	BufferList.prototype.join = function (s) {
+	  if (this.length === 0) return '';
+	  var p = this.head;
+	  var ret = '' + p.data;
+
+	  while (p = p.next) {
+	    ret += s + p.data;
+	  }
+
+	  return ret;
+	};
+
+	BufferList.prototype.concat = function (n) {
+	  if (this.length === 0) return Buffer.alloc(0);
+	  if (this.length === 1) return this.head.data;
+	  var ret = Buffer.allocUnsafe(n >>> 0);
+	  var p = this.head;
+	  var i = 0;
+
+	  while (p) {
+	    p.data.copy(ret, i);
+	    i += p.data.length;
+	    p = p.next;
+	  }
+
+	  return ret;
+	};
+
+	var isBufferEncoding = Buffer.isEncoding || function (encoding) {
+	  switch (encoding && encoding.toLowerCase()) {
+	    case 'hex':
+	    case 'utf8':
+	    case 'utf-8':
+	    case 'ascii':
+	    case 'binary':
+	    case 'base64':
+	    case 'ucs2':
+	    case 'ucs-2':
+	    case 'utf16le':
+	    case 'utf-16le':
+	    case 'raw':
+	      return true;
+
+	    default:
+	      return false;
+	  }
+	};
+
+	function assertEncoding(encoding) {
+	  if (encoding && !isBufferEncoding(encoding)) {
+	    throw new Error('Unknown encoding: ' + encoding);
+	  }
+	} // StringDecoder provides an interface for efficiently splitting a series of
+	// buffers into a series of JS strings without breaking apart multi-byte
+	// characters. CESU-8 is handled as part of the UTF-8 encoding.
+	//
+	// @TODO Handling all encodings inside a single object makes it very difficult
+	// to reason about this code, so it should be split up in the future.
+	// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
+	// points as used by CESU-8.
+
+
+	function StringDecoder(encoding) {
+	  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
+	  assertEncoding(encoding);
+
+	  switch (this.encoding) {
+	    case 'utf8':
+	      // CESU-8 represents each of Surrogate Pair by 3-bytes
+	      this.surrogateSize = 3;
+	      break;
+
+	    case 'ucs2':
+	    case 'utf16le':
+	      // UTF-16 represents each of Surrogate Pair by 2-bytes
+	      this.surrogateSize = 2;
+	      this.detectIncompleteChar = utf16DetectIncompleteChar;
+	      break;
+
+	    case 'base64':
+	      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
+	      this.surrogateSize = 3;
+	      this.detectIncompleteChar = base64DetectIncompleteChar;
+	      break;
+
+	    default:
+	      this.write = passThroughWrite;
+	      return;
+	  } // Enough space to store all bytes of a single character. UTF-8 needs 4
+	  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
+
+
+	  this.charBuffer = new Buffer(6); // Number of bytes received for the current incomplete multi-byte character.
+
+	  this.charReceived = 0; // Number of bytes expected for the current incomplete multi-byte character.
+
+	  this.charLength = 0;
+	}
+	// guaranteed to not contain any partial multi-byte characters. Any partial
+	// character found at the end of the buffer is buffered up, and will be
+	// returned when calling write again with the remaining bytes.
+	//
+	// Note: Converting a Buffer containing an orphan surrogate to a String
+	// currently works, but converting a String to a Buffer (via `new Buffer`, or
+	// Buffer#write) will replace incomplete surrogates with the unicode
+	// replacement character. See https://codereview.chromium.org/121173009/ .
+
+	StringDecoder.prototype.write = function (buffer) {
+	  var charStr = ''; // if our last write ended with an incomplete multibyte character
+
+	  while (this.charLength) {
+	    // determine how many remaining bytes this buffer has to offer for this char
+	    var available = buffer.length >= this.charLength - this.charReceived ? this.charLength - this.charReceived : buffer.length; // add the new bytes to the char buffer
+
+	    buffer.copy(this.charBuffer, this.charReceived, 0, available);
+	    this.charReceived += available;
+
+	    if (this.charReceived < this.charLength) {
+	      // still not enough chars in this buffer? wait for more ...
+	      return '';
+	    } // remove bytes belonging to the current character from the buffer
+
+
+	    buffer = buffer.slice(available, buffer.length); // get the character that was split
+
+	    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding); // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
+
+	    var charCode = charStr.charCodeAt(charStr.length - 1);
+
+	    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+	      this.charLength += this.surrogateSize;
+	      charStr = '';
+	      continue;
+	    }
+
+	    this.charReceived = this.charLength = 0; // if there are no more bytes in this buffer, just emit our char
+
+	    if (buffer.length === 0) {
+	      return charStr;
+	    }
+
+	    break;
+	  } // determine and set charLength / charReceived
+
+
+	  this.detectIncompleteChar(buffer);
+	  var end = buffer.length;
+
+	  if (this.charLength) {
+	    // buffer the incomplete character bytes we got
+	    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
+	    end -= this.charReceived;
+	  }
+
+	  charStr += buffer.toString(this.encoding, 0, end);
+	  var end = charStr.length - 1;
+	  var charCode = charStr.charCodeAt(end); // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
+
+	  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+	    var size = this.surrogateSize;
+	    this.charLength += size;
+	    this.charReceived += size;
+	    this.charBuffer.copy(this.charBuffer, size, 0, size);
+	    buffer.copy(this.charBuffer, 0, 0, size);
+	    return charStr.substring(0, end);
+	  } // or just emit the charStr
+
+
+	  return charStr;
+	}; // detectIncompleteChar determines if there is an incomplete UTF-8 character at
+	// the end of the given buffer. If so, it sets this.charLength to the byte
+	// length that character, and sets this.charReceived to the number of bytes
+	// that are available for this character.
+
+
+	StringDecoder.prototype.detectIncompleteChar = function (buffer) {
+	  // determine how many bytes we have to check at the end of this buffer
+	  var i = buffer.length >= 3 ? 3 : buffer.length; // Figure out if one of the last i bytes of our buffer announces an
+	  // incomplete char.
+
+	  for (; i > 0; i--) {
+	    var c = buffer[buffer.length - i]; // See http://en.wikipedia.org/wiki/UTF-8#Description
+	    // 110XXXXX
+
+	    if (i == 1 && c >> 5 == 0x06) {
+	      this.charLength = 2;
+	      break;
+	    } // 1110XXXX
+
+
+	    if (i <= 2 && c >> 4 == 0x0E) {
+	      this.charLength = 3;
+	      break;
+	    } // 11110XXX
+
+
+	    if (i <= 3 && c >> 3 == 0x1E) {
+	      this.charLength = 4;
+	      break;
+	    }
+	  }
+
+	  this.charReceived = i;
+	};
+
+	StringDecoder.prototype.end = function (buffer) {
+	  var res = '';
+	  if (buffer && buffer.length) res = this.write(buffer);
+
+	  if (this.charReceived) {
+	    var cr = this.charReceived;
+	    var buf = this.charBuffer;
+	    var enc = this.encoding;
+	    res += buf.slice(0, cr).toString(enc);
+	  }
+
+	  return res;
+	};
+
+	function passThroughWrite(buffer) {
+	  return buffer.toString(this.encoding);
+	}
+
+	function utf16DetectIncompleteChar(buffer) {
+	  this.charReceived = buffer.length % 2;
+	  this.charLength = this.charReceived ? 2 : 0;
+	}
+
+	function base64DetectIncompleteChar(buffer) {
+	  this.charReceived = buffer.length % 3;
+	  this.charLength = this.charReceived ? 3 : 0;
+	}
+
+	Readable.ReadableState = ReadableState;
+	var debug$2 = debuglog('stream');
+	inherits$3(Readable, EventEmitter$2);
+
+	function prependListener(emitter, event, fn) {
+	  // Sadly this is not cacheable as some libraries bundle their own
+	  // event emitter implementation with them.
+	  if (typeof emitter.prependListener === 'function') {
+	    return emitter.prependListener(event, fn);
+	  } else {
+	    // This is a hack to make sure that our error handler is attached before any
+	    // userland ones.  NEVER DO THIS. This is here only because this code needs
+	    // to continue to work with older versions of Node.js that do not include
+	    // the prependListener() method. The goal is to eventually remove this hack.
+	    if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+	  }
+	}
+
+	function listenerCount(emitter, type) {
+	  return emitter.listeners(type).length;
+	}
+
+	function ReadableState(options, stream) {
+	  options = options || {}; // object stream flag. Used to make read(n) ignore n and to
+	  // make all the buffer merging and length checks go away
+
+	  this.objectMode = !!options.objectMode;
+	  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode; // the point at which it stops calling _read() to fill the buffer
+	  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+
+	  var hwm = options.highWaterMark;
+	  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+	  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm; // cast to ints.
+
+	  this.highWaterMark = ~~this.highWaterMark; // A linked list is used to store data chunks instead of an array because the
+	  // linked list can remove elements from the beginning faster than
+	  // array.shift()
+
+	  this.buffer = new BufferList();
+	  this.length = 0;
+	  this.pipes = null;
+	  this.pipesCount = 0;
+	  this.flowing = null;
+	  this.ended = false;
+	  this.endEmitted = false;
+	  this.reading = false; // a flag to be able to tell if the onwrite cb is called immediately,
+	  // or on a later tick.  We set this to true at first, because any
+	  // actions that shouldn't happen until "later" should generally also
+	  // not happen before the first write call.
+
+	  this.sync = true; // whenever we return null, then we set a flag to say
+	  // that we're awaiting a 'readable' event emission.
+
+	  this.needReadable = false;
+	  this.emittedReadable = false;
+	  this.readableListening = false;
+	  this.resumeScheduled = false; // Crypto is kind of old and crusty.  Historically, its default string
+	  // encoding is 'binary' so we have to make this configurable.
+	  // Everything else in the universe uses 'utf8', though.
+
+	  this.defaultEncoding = options.defaultEncoding || 'utf8'; // when piping, we only care about 'readable' events that happen
+	  // after read()ing all the bytes and not getting any pushback.
+
+	  this.ranOut = false; // the number of writers that are awaiting a drain event in .pipe()s
+
+	  this.awaitDrain = 0; // if true, a maybeReadMore has been scheduled
+
+	  this.readingMore = false;
+	  this.decoder = null;
+	  this.encoding = null;
+
+	  if (options.encoding) {
+	    this.decoder = new StringDecoder(options.encoding);
+	    this.encoding = options.encoding;
+	  }
+	}
+	function Readable(options) {
+	  if (!(this instanceof Readable)) return new Readable(options);
+	  this._readableState = new ReadableState(options, this); // legacy
+
+	  this.readable = true;
+	  if (options && typeof options.read === 'function') this._read = options.read;
+	  EventEmitter$2.call(this);
+	} // Manually shove something into the read() buffer.
+	// This returns true if the highWaterMark has not been hit yet,
+	// similar to how Writable.write() returns true if you should
+	// write() some more.
+
+	Readable.prototype.push = function (chunk, encoding) {
+	  var state = this._readableState;
+
+	  if (!state.objectMode && typeof chunk === 'string') {
+	    encoding = encoding || state.defaultEncoding;
+
+	    if (encoding !== state.encoding) {
+	      chunk = Buffer$1.from(chunk, encoding);
+	      encoding = '';
+	    }
+	  }
+
+	  return readableAddChunk(this, state, chunk, encoding, false);
+	}; // Unshift should *always* be something directly out of read()
+
+
+	Readable.prototype.unshift = function (chunk) {
+	  var state = this._readableState;
+	  return readableAddChunk(this, state, chunk, '', true);
+	};
+
+	Readable.prototype.isPaused = function () {
+	  return this._readableState.flowing === false;
+	};
+
+	function readableAddChunk(stream, state, chunk, encoding, addToFront) {
+	  var er = chunkInvalid(state, chunk);
+
+	  if (er) {
+	    stream.emit('error', er);
+	  } else if (chunk === null) {
+	    state.reading = false;
+	    onEofChunk(stream, state);
+	  } else if (state.objectMode || chunk && chunk.length > 0) {
+	    if (state.ended && !addToFront) {
+	      var e = new Error('stream.push() after EOF');
+	      stream.emit('error', e);
+	    } else if (state.endEmitted && addToFront) {
+	      var _e = new Error('stream.unshift() after end event');
+
+	      stream.emit('error', _e);
+	    } else {
+	      var skipAdd;
+
+	      if (state.decoder && !addToFront && !encoding) {
+	        chunk = state.decoder.write(chunk);
+	        skipAdd = !state.objectMode && chunk.length === 0;
+	      }
+
+	      if (!addToFront) state.reading = false; // Don't add to the buffer if we've decoded to an empty string chunk and
+	      // we're not in object mode
+
+	      if (!skipAdd) {
+	        // if we want the data now, just emit it.
+	        if (state.flowing && state.length === 0 && !state.sync) {
+	          stream.emit('data', chunk);
+	          stream.read(0);
+	        } else {
+	          // update the buffer info.
+	          state.length += state.objectMode ? 1 : chunk.length;
+	          if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
+	          if (state.needReadable) emitReadable(stream);
+	        }
+	      }
+
+	      maybeReadMore(stream, state);
+	    }
+	  } else if (!addToFront) {
+	    state.reading = false;
+	  }
+
+	  return needMoreData(state);
+	} // if it's past the high water mark, we can push in some more.
+	// Also, if we have no data yet, we can stand some
+	// more bytes.  This is to work around cases where hwm=0,
+	// such as the repl.  Also, if the push() triggered a
+	// readable event, and the user called read(largeNumber) such that
+	// needReadable was set, then we ought to push more, so that another
+	// 'readable' event will be triggered.
+
+
+	function needMoreData(state) {
+	  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
+	} // backwards compatibility.
+
+
+	Readable.prototype.setEncoding = function (enc) {
+	  this._readableState.decoder = new StringDecoder(enc);
+	  this._readableState.encoding = enc;
+	  return this;
+	}; // Don't raise the hwm > 8MB
+
+
+	var MAX_HWM = 0x800000;
+
+	function computeNewHighWaterMark(n) {
+	  if (n >= MAX_HWM) {
+	    n = MAX_HWM;
+	  } else {
+	    // Get the next highest power of 2 to prevent increasing hwm excessively in
+	    // tiny amounts
+	    n--;
+	    n |= n >>> 1;
+	    n |= n >>> 2;
+	    n |= n >>> 4;
+	    n |= n >>> 8;
+	    n |= n >>> 16;
+	    n++;
+	  }
+
+	  return n;
+	} // This function is designed to be inlinable, so please take care when making
+	// changes to the function body.
+
+
+	function howMuchToRead(n, state) {
+	  if (n <= 0 || state.length === 0 && state.ended) return 0;
+	  if (state.objectMode) return 1;
+
+	  if (n !== n) {
+	    // Only flow one buffer at a time
+	    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+	  } // If we're asking for more than the current hwm, then raise the hwm.
+
+
+	  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+	  if (n <= state.length) return n; // Don't have enough
+
+	  if (!state.ended) {
+	    state.needReadable = true;
+	    return 0;
+	  }
+
+	  return state.length;
+	} // you can override either this method, or the async _read(n) below.
+
+
+	Readable.prototype.read = function (n) {
+	  debug$2('read', n);
+	  n = parseInt(n, 10);
+	  var state = this._readableState;
+	  var nOrig = n;
+	  if (n !== 0) state.emittedReadable = false; // if we're doing read(0) to trigger a readable event, but we
+	  // already have a bunch of data in the buffer, then just trigger
+	  // the 'readable' event and move on.
+
+	  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+	    debug$2('read: emitReadable', state.length, state.ended);
+	    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+	    return null;
+	  }
+
+	  n = howMuchToRead(n, state); // if we've ended, and we're now clear, then finish it up.
+
+	  if (n === 0 && state.ended) {
+	    if (state.length === 0) endReadable(this);
+	    return null;
+	  } // All the actual chunk generation logic needs to be
+	  // *below* the call to _read.  The reason is that in certain
+	  // synthetic stream cases, such as passthrough streams, _read
+	  // may be a completely synchronous operation which may change
+	  // the state of the read buffer, providing enough data when
+	  // before there was *not* enough.
+	  //
+	  // So, the steps are:
+	  // 1. Figure out what the state of things will be after we do
+	  // a read from the buffer.
+	  //
+	  // 2. If that resulting state will trigger a _read, then call _read.
+	  // Note that this may be asynchronous, or synchronous.  Yes, it is
+	  // deeply ugly to write APIs this way, but that still doesn't mean
+	  // that the Readable class should behave improperly, as streams are
+	  // designed to be sync/async agnostic.
+	  // Take note if the _read call is sync or async (ie, if the read call
+	  // has returned yet), so that we know whether or not it's safe to emit
+	  // 'readable' etc.
+	  //
+	  // 3. Actually pull the requested chunks out of the buffer and return.
+	  // if we need a readable event, then we need to do some reading.
+
+
+	  var doRead = state.needReadable;
+	  debug$2('need readable', doRead); // if we currently have less than the highWaterMark, then also read some
+
+	  if (state.length === 0 || state.length - n < state.highWaterMark) {
+	    doRead = true;
+	    debug$2('length less than watermark', doRead);
+	  } // however, if we've ended, then there's no point, and if we're already
+	  // reading, then it's unnecessary.
+
+
+	  if (state.ended || state.reading) {
+	    doRead = false;
+	    debug$2('reading or ended', doRead);
+	  } else if (doRead) {
+	    debug$2('do read');
+	    state.reading = true;
+	    state.sync = true; // if the length is currently zero, then we *need* a readable event.
+
+	    if (state.length === 0) state.needReadable = true; // call internal read method
+
+	    this._read(state.highWaterMark);
+
+	    state.sync = false; // If _read pushed data synchronously, then `reading` will be false,
+	    // and we need to re-evaluate how much data we can return to the user.
+
+	    if (!state.reading) n = howMuchToRead(nOrig, state);
+	  }
+
+	  var ret;
+	  if (n > 0) ret = fromList(n, state);else ret = null;
+
+	  if (ret === null) {
+	    state.needReadable = true;
+	    n = 0;
+	  } else {
+	    state.length -= n;
+	  }
+
+	  if (state.length === 0) {
+	    // If we have nothing in the buffer, then we want to know
+	    // as soon as we *do* get something into the buffer.
+	    if (!state.ended) state.needReadable = true; // If we tried to read() past the EOF, then emit end on the next tick.
+
+	    if (nOrig !== n && state.ended) endReadable(this);
+	  }
+
+	  if (ret !== null) this.emit('data', ret);
+	  return ret;
+	};
+
+	function chunkInvalid(state, chunk) {
+	  var er = null;
+
+	  if (!isBuffer$2(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
+	    er = new TypeError('Invalid non-string/buffer chunk');
+	  }
+
+	  return er;
+	}
+
+	function onEofChunk(stream, state) {
+	  if (state.ended) return;
+
+	  if (state.decoder) {
+	    var chunk = state.decoder.end();
+
+	    if (chunk && chunk.length) {
+	      state.buffer.push(chunk);
+	      state.length += state.objectMode ? 1 : chunk.length;
+	    }
+	  }
+
+	  state.ended = true; // emit 'readable' now to make sure it gets picked up.
+
+	  emitReadable(stream);
+	} // Don't emit readable right away in sync mode, because this can trigger
+	// another read() call => stack overflow.  This way, it might trigger
+	// a nextTick recursion warning, but that's not so bad.
+
+
+	function emitReadable(stream) {
+	  var state = stream._readableState;
+	  state.needReadable = false;
+
+	  if (!state.emittedReadable) {
+	    debug$2('emitReadable', state.flowing);
+	    state.emittedReadable = true;
+	    if (state.sync) nextTick(emitReadable_, stream);else emitReadable_(stream);
+	  }
+	}
+
+	function emitReadable_(stream) {
+	  debug$2('emit readable');
+	  stream.emit('readable');
+	  flow(stream);
+	} // at this point, the user has presumably seen the 'readable' event,
+	// and called read() to consume some data.  that may have triggered
+	// in turn another _read(n) call, in which case reading = true if
+	// it's in progress.
+	// However, if we're not ended, or reading, and the length < hwm,
+	// then go ahead and try to read some more preemptively.
+
+
+	function maybeReadMore(stream, state) {
+	  if (!state.readingMore) {
+	    state.readingMore = true;
+	    nextTick(maybeReadMore_, stream, state);
+	  }
+	}
+
+	function maybeReadMore_(stream, state) {
+	  var len = state.length;
+
+	  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+	    debug$2('maybeReadMore read 0');
+	    stream.read(0);
+	    if (len === state.length) // didn't get any data, stop spinning.
+	      break;else len = state.length;
+	  }
+
+	  state.readingMore = false;
+	} // abstract method.  to be overridden in specific implementation classes.
+	// call cb(er, data) where data is <= n in length.
+	// for virtual (non-string, non-buffer) streams, "length" is somewhat
+	// arbitrary, and perhaps not very meaningful.
+
+
+	Readable.prototype._read = function (n) {
+	  this.emit('error', new Error('not implemented'));
+	};
+
+	Readable.prototype.pipe = function (dest, pipeOpts) {
+	  var src = this;
+	  var state = this._readableState;
+
+	  switch (state.pipesCount) {
+	    case 0:
+	      state.pipes = dest;
+	      break;
+
+	    case 1:
+	      state.pipes = [state.pipes, dest];
+	      break;
+
+	    default:
+	      state.pipes.push(dest);
+	      break;
+	  }
+
+	  state.pipesCount += 1;
+	  debug$2('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+	  var doEnd = !pipeOpts || pipeOpts.end !== false;
+	  var endFn = doEnd ? onend : cleanup;
+	  if (state.endEmitted) nextTick(endFn);else src.once('end', endFn);
+	  dest.on('unpipe', onunpipe);
+
+	  function onunpipe(readable) {
+	    debug$2('onunpipe');
+
+	    if (readable === src) {
+	      cleanup();
+	    }
+	  }
+
+	  function onend() {
+	    debug$2('onend');
+	    dest.end();
+	  } // when the dest drains, it reduces the awaitDrain counter
+	  // on the source.  This would be more elegant with a .once()
+	  // handler in flow(), but adding and removing repeatedly is
+	  // too slow.
+
+
+	  var ondrain = pipeOnDrain(src);
+	  dest.on('drain', ondrain);
+	  var cleanedUp = false;
+
+	  function cleanup() {
+	    debug$2('cleanup'); // cleanup event handlers once the pipe is broken
+
+	    dest.removeListener('close', onclose);
+	    dest.removeListener('finish', onfinish);
+	    dest.removeListener('drain', ondrain);
+	    dest.removeListener('error', onerror);
+	    dest.removeListener('unpipe', onunpipe);
+	    src.removeListener('end', onend);
+	    src.removeListener('end', cleanup);
+	    src.removeListener('data', ondata);
+	    cleanedUp = true; // if the reader is waiting for a drain event from this
+	    // specific writer, then it would cause it to never start
+	    // flowing again.
+	    // So, if this is awaiting a drain, then we just call it now.
+	    // If we don't know, then assume that we are waiting for one.
+
+	    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
+	  } // If the user pushes more data while we're writing to dest then we'll end up
+	  // in ondata again. However, we only want to increase awaitDrain once because
+	  // dest will only emit one 'drain' event for the multiple writes.
+	  // => Introduce a guard on increasing awaitDrain.
+
+
+	  var increasedAwaitDrain = false;
+	  src.on('data', ondata);
+
+	  function ondata(chunk) {
+	    debug$2('ondata');
+	    increasedAwaitDrain = false;
+	    var ret = dest.write(chunk);
+
+	    if (false === ret && !increasedAwaitDrain) {
+	      // If the user unpiped during `dest.write()`, it is possible
+	      // to get stuck in a permanently paused state if that write
+	      // also returned false.
+	      // => Check whether `dest` is still a piping destination.
+	      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+	        debug$2('false write response, pause', src._readableState.awaitDrain);
+	        src._readableState.awaitDrain++;
+	        increasedAwaitDrain = true;
+	      }
+
+	      src.pause();
+	    }
+	  } // if the dest has an error, then stop piping into it.
+	  // however, don't suppress the throwing behavior for this.
+
+
+	  function onerror(er) {
+	    debug$2('onerror', er);
+	    unpipe();
+	    dest.removeListener('error', onerror);
+	    if (listenerCount(dest, 'error') === 0) dest.emit('error', er);
+	  } // Make sure our error handler is attached before userland ones.
+
+
+	  prependListener(dest, 'error', onerror); // Both close and finish should trigger unpipe, but only once.
+
+	  function onclose() {
+	    dest.removeListener('finish', onfinish);
+	    unpipe();
+	  }
+
+	  dest.once('close', onclose);
+
+	  function onfinish() {
+	    debug$2('onfinish');
+	    dest.removeListener('close', onclose);
+	    unpipe();
+	  }
+
+	  dest.once('finish', onfinish);
+
+	  function unpipe() {
+	    debug$2('unpipe');
+	    src.unpipe(dest);
+	  } // tell the dest that it's being piped to
+
+
+	  dest.emit('pipe', src); // start the flow if it hasn't been started already.
+
+	  if (!state.flowing) {
+	    debug$2('pipe resume');
+	    src.resume();
+	  }
+
+	  return dest;
+	};
+
+	function pipeOnDrain(src) {
+	  return function () {
+	    var state = src._readableState;
+	    debug$2('pipeOnDrain', state.awaitDrain);
+	    if (state.awaitDrain) state.awaitDrain--;
+
+	    if (state.awaitDrain === 0 && src.listeners('data').length) {
+	      state.flowing = true;
+	      flow(src);
+	    }
+	  };
+	}
+
+	Readable.prototype.unpipe = function (dest) {
+	  var state = this._readableState; // if we're not piping anywhere, then do nothing.
+
+	  if (state.pipesCount === 0) return this; // just one destination.  most common case.
+
+	  if (state.pipesCount === 1) {
+	    // passed in one, but it's not the right one.
+	    if (dest && dest !== state.pipes) return this;
+	    if (!dest) dest = state.pipes; // got a match.
+
+	    state.pipes = null;
+	    state.pipesCount = 0;
+	    state.flowing = false;
+	    if (dest) dest.emit('unpipe', this);
+	    return this;
+	  } // slow case. multiple pipe destinations.
+
+
+	  if (!dest) {
+	    // remove all.
+	    var dests = state.pipes;
+	    var len = state.pipesCount;
+	    state.pipes = null;
+	    state.pipesCount = 0;
+	    state.flowing = false;
+
+	    for (var _i = 0; _i < len; _i++) {
+	      dests[_i].emit('unpipe', this);
+	    }
+
+	    return this;
+	  } // try to find the right one.
+
+
+	  var i = indexOf(state.pipes, dest);
+	  if (i === -1) return this;
+	  state.pipes.splice(i, 1);
+	  state.pipesCount -= 1;
+	  if (state.pipesCount === 1) state.pipes = state.pipes[0];
+	  dest.emit('unpipe', this);
+	  return this;
+	}; // set up data events if they are asked for
+	// Ensure readable listeners eventually get something
+
+
+	Readable.prototype.on = function (ev, fn) {
+	  var res = EventEmitter$2.prototype.on.call(this, ev, fn);
+
+	  if (ev === 'data') {
+	    // Start flowing on next tick if stream isn't explicitly paused
+	    if (this._readableState.flowing !== false) this.resume();
+	  } else if (ev === 'readable') {
+	    var state = this._readableState;
+
+	    if (!state.endEmitted && !state.readableListening) {
+	      state.readableListening = state.needReadable = true;
+	      state.emittedReadable = false;
+
+	      if (!state.reading) {
+	        nextTick(nReadingNextTick, this);
+	      } else if (state.length) {
+	        emitReadable(this);
+	      }
+	    }
+	  }
+
+	  return res;
+	};
+
+	Readable.prototype.addListener = Readable.prototype.on;
+
+	function nReadingNextTick(self) {
+	  debug$2('readable nexttick read 0');
+	  self.read(0);
+	} // pause() and resume() are remnants of the legacy readable stream API
+	// If the user uses them, then switch into old mode.
+
+
+	Readable.prototype.resume = function () {
+	  var state = this._readableState;
+
+	  if (!state.flowing) {
+	    debug$2('resume');
+	    state.flowing = true;
+	    resume(this, state);
+	  }
+
+	  return this;
+	};
+
+	function resume(stream, state) {
+	  if (!state.resumeScheduled) {
+	    state.resumeScheduled = true;
+	    nextTick(resume_, stream, state);
+	  }
+	}
+
+	function resume_(stream, state) {
+	  if (!state.reading) {
+	    debug$2('resume read 0');
+	    stream.read(0);
+	  }
+
+	  state.resumeScheduled = false;
+	  state.awaitDrain = 0;
+	  stream.emit('resume');
+	  flow(stream);
+	  if (state.flowing && !state.reading) stream.read(0);
+	}
+
+	Readable.prototype.pause = function () {
+	  debug$2('call pause flowing=%j', this._readableState.flowing);
+
+	  if (false !== this._readableState.flowing) {
+	    debug$2('pause');
+	    this._readableState.flowing = false;
+	    this.emit('pause');
+	  }
+
+	  return this;
+	};
+
+	function flow(stream) {
+	  var state = stream._readableState;
+	  debug$2('flow', state.flowing);
+
+	  while (state.flowing && stream.read() !== null) {}
+	} // wrap an old-style stream as the async data source.
+	// This is *not* part of the readable stream interface.
+	// It is an ugly unfortunate mess of history.
+
+
+	Readable.prototype.wrap = function (stream) {
+	  var state = this._readableState;
+	  var paused = false;
+	  var self = this;
+	  stream.on('end', function () {
+	    debug$2('wrapped end');
+
+	    if (state.decoder && !state.ended) {
+	      var chunk = state.decoder.end();
+	      if (chunk && chunk.length) self.push(chunk);
+	    }
+
+	    self.push(null);
+	  });
+	  stream.on('data', function (chunk) {
+	    debug$2('wrapped data');
+	    if (state.decoder) chunk = state.decoder.write(chunk); // don't skip over falsy values in objectMode
+
+	    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+	    var ret = self.push(chunk);
+
+	    if (!ret) {
+	      paused = true;
+	      stream.pause();
+	    }
+	  }); // proxy all the other methods.
+	  // important when wrapping filters and duplexes.
+
+	  for (var i in stream) {
+	    if (this[i] === undefined && typeof stream[i] === 'function') {
+	      this[i] = function (method) {
+	        return function () {
+	          return stream[method].apply(stream, arguments);
+	        };
+	      }(i);
+	    }
+	  } // proxy certain important events.
+
+
+	  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
+	  forEach(events, function (ev) {
+	    stream.on(ev, self.emit.bind(self, ev));
+	  }); // when we try to consume some more bytes, simply unpause the
+	  // underlying stream.
+
+	  self._read = function (n) {
+	    debug$2('wrapped _read', n);
+
+	    if (paused) {
+	      paused = false;
+	      stream.resume();
+	    }
+	  };
+
+	  return self;
+	}; // exposed for testing purposes only.
+
+
+	Readable._fromList = fromList; // Pluck off n bytes from an array of buffers.
+	// Length is the combined lengths of all the buffers in the list.
+	// This function is designed to be inlinable, so please take care when making
+	// changes to the function body.
+
+	function fromList(n, state) {
+	  // nothing buffered
+	  if (state.length === 0) return null;
+	  var ret;
+	  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+	    // read it all, truncate the list
+	    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+	    state.buffer.clear();
+	  } else {
+	    // read part of list
+	    ret = fromListPartial(n, state.buffer, state.decoder);
+	  }
+	  return ret;
+	} // Extracts only enough buffered data to satisfy the amount requested.
+	// This function is designed to be inlinable, so please take care when making
+	// changes to the function body.
+
+
+	function fromListPartial(n, list, hasStrings) {
+	  var ret;
+
+	  if (n < list.head.data.length) {
+	    // slice is the same for buffers and strings
+	    ret = list.head.data.slice(0, n);
+	    list.head.data = list.head.data.slice(n);
+	  } else if (n === list.head.data.length) {
+	    // first chunk is a perfect match
+	    ret = list.shift();
+	  } else {
+	    // result spans more than one buffer
+	    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
+	  }
+
+	  return ret;
+	} // Copies a specified amount of characters from the list of buffered data
+	// chunks.
+	// This function is designed to be inlinable, so please take care when making
+	// changes to the function body.
+
+
+	function copyFromBufferString(n, list) {
+	  var p = list.head;
+	  var c = 1;
+	  var ret = p.data;
+	  n -= ret.length;
+
+	  while (p = p.next) {
+	    var str = p.data;
+	    var nb = n > str.length ? str.length : n;
+	    if (nb === str.length) ret += str;else ret += str.slice(0, n);
+	    n -= nb;
+
+	    if (n === 0) {
+	      if (nb === str.length) {
+	        ++c;
+	        if (p.next) list.head = p.next;else list.head = list.tail = null;
+	      } else {
+	        list.head = p;
+	        p.data = str.slice(nb);
+	      }
+
+	      break;
+	    }
+
+	    ++c;
+	  }
+
+	  list.length -= c;
+	  return ret;
+	} // Copies a specified amount of bytes from the list of buffered data chunks.
+	// This function is designed to be inlinable, so please take care when making
+	// changes to the function body.
+
+
+	function copyFromBuffer(n, list) {
+	  var ret = Buffer$1.allocUnsafe(n);
+	  var p = list.head;
+	  var c = 1;
+	  p.data.copy(ret);
+	  n -= p.data.length;
+
+	  while (p = p.next) {
+	    var buf = p.data;
+	    var nb = n > buf.length ? buf.length : n;
+	    buf.copy(ret, ret.length - n, 0, nb);
+	    n -= nb;
+
+	    if (n === 0) {
+	      if (nb === buf.length) {
+	        ++c;
+	        if (p.next) list.head = p.next;else list.head = list.tail = null;
+	      } else {
+	        list.head = p;
+	        p.data = buf.slice(nb);
+	      }
+
+	      break;
+	    }
+
+	    ++c;
+	  }
+
+	  list.length -= c;
+	  return ret;
+	}
+
+	function endReadable(stream) {
+	  var state = stream._readableState; // If we get here before consuming all the bytes, then that is a
+	  // bug in node.  Should never happen.
+
+	  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
+
+	  if (!state.endEmitted) {
+	    state.ended = true;
+	    nextTick(endReadableNT, state, stream);
+	  }
+	}
+
+	function endReadableNT(state, stream) {
+	  // Check that we didn't get one last unshift.
+	  if (!state.endEmitted && state.length === 0) {
+	    state.endEmitted = true;
+	    stream.readable = false;
+	    stream.emit('end');
+	  }
+	}
+
+	function forEach(xs, f) {
+	  for (var i = 0, l = xs.length; i < l; i++) {
+	    f(xs[i], i);
+	  }
+	}
+
+	function indexOf(xs, x) {
+	  for (var i = 0, l = xs.length; i < l; i++) {
+	    if (xs[i] === x) return i;
+	  }
+
+	  return -1;
+	}
+
+	// A bit simpler than readable streams.
+	Writable.WritableState = WritableState;
+	inherits$3(Writable, EventEmitter$2);
+
+	function nop() {}
+
+	function WriteReq(chunk, encoding, cb) {
+	  this.chunk = chunk;
+	  this.encoding = encoding;
+	  this.callback = cb;
+	  this.next = null;
+	}
+
+	function WritableState(options, stream) {
+	  Object.defineProperty(this, 'buffer', {
+	    get: deprecate$1(function () {
+	      return this.getBuffer();
+	    }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.')
+	  });
+	  options = options || {}; // object stream flag to indicate whether or not this stream
+	  // contains buffers or objects.
+
+	  this.objectMode = !!options.objectMode;
+	  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode; // the point at which write() starts returning false
+	  // Note: 0 is a valid value, means that we always return false if
+	  // the entire buffer is not flushed immediately on write()
+
+	  var hwm = options.highWaterMark;
+	  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+	  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm; // cast to ints.
+
+	  this.highWaterMark = ~~this.highWaterMark;
+	  this.needDrain = false; // at the start of calling end()
+
+	  this.ending = false; // when end() has been called, and returned
+
+	  this.ended = false; // when 'finish' is emitted
+
+	  this.finished = false; // should we decode strings into buffers before passing to _write?
+	  // this is here so that some node-core streams can optimize string
+	  // handling at a lower level.
+
+	  var noDecode = options.decodeStrings === false;
+	  this.decodeStrings = !noDecode; // Crypto is kind of old and crusty.  Historically, its default string
+	  // encoding is 'binary' so we have to make this configurable.
+	  // Everything else in the universe uses 'utf8', though.
+
+	  this.defaultEncoding = options.defaultEncoding || 'utf8'; // not an actual buffer we keep track of, but a measurement
+	  // of how much we're waiting to get pushed to some underlying
+	  // socket or file.
+
+	  this.length = 0; // a flag to see when we're in the middle of a write.
+
+	  this.writing = false; // when true all writes will be buffered until .uncork() call
+
+	  this.corked = 0; // a flag to be able to tell if the onwrite cb is called immediately,
+	  // or on a later tick.  We set this to true at first, because any
+	  // actions that shouldn't happen until "later" should generally also
+	  // not happen before the first write call.
+
+	  this.sync = true; // a flag to know if we're processing previously buffered items, which
+	  // may call the _write() callback in the same tick, so that we don't
+	  // end up in an overlapped onwrite situation.
+
+	  this.bufferProcessing = false; // the callback that's passed to _write(chunk,cb)
+
+	  this.onwrite = function (er) {
+	    onwrite(stream, er);
+	  }; // the callback that the user supplies to write(chunk,encoding,cb)
+
+
+	  this.writecb = null; // the amount that is being written when _write is called.
+
+	  this.writelen = 0;
+	  this.bufferedRequest = null;
+	  this.lastBufferedRequest = null; // number of pending user-supplied write callbacks
+	  // this must be 0 before 'finish' can be emitted
+
+	  this.pendingcb = 0; // emit prefinish if the only thing we're waiting for is _write cbs
+	  // This is relevant for synchronous Transform streams
+
+	  this.prefinished = false; // True if the error was already emitted and should not be thrown again
+
+	  this.errorEmitted = false; // count buffered requests
+
+	  this.bufferedRequestCount = 0; // allocate the first CorkedRequest, there is always
+	  // one allocated and free to use, and we maintain at most two
+
+	  this.corkedRequestsFree = new CorkedRequest(this);
+	}
+
+	WritableState.prototype.getBuffer = function writableStateGetBuffer() {
+	  var current = this.bufferedRequest;
+	  var out = [];
+
+	  while (current) {
+	    out.push(current);
+	    current = current.next;
+	  }
+
+	  return out;
+	};
+	function Writable(options) {
+	  // Writable ctor is applied to Duplexes, though they're not
+	  // instanceof Writable, they're instanceof Readable.
+	  if (!(this instanceof Writable) && !(this instanceof Duplex)) return new Writable(options);
+	  this._writableState = new WritableState(options, this); // legacy.
+
+	  this.writable = true;
+
+	  if (options) {
+	    if (typeof options.write === 'function') this._write = options.write;
+	    if (typeof options.writev === 'function') this._writev = options.writev;
+	  }
+
+	  EventEmitter$2.call(this);
+	} // Otherwise people can pipe Writable streams, which is just wrong.
+
+	Writable.prototype.pipe = function () {
+	  this.emit('error', new Error('Cannot pipe, not readable'));
+	};
+
+	function writeAfterEnd(stream, cb) {
+	  var er = new Error('write after end'); // TODO: defer error events consistently everywhere, not just the cb
+
+	  stream.emit('error', er);
+	  nextTick(cb, er);
+	} // If we get something that is not a buffer, string, null, or undefined,
+	// and we're not in objectMode, then that's an error.
+	// Otherwise stream chunks are all considered to be of length=1, and the
+	// watermarks determine how many objects to keep in the buffer, rather than
+	// how many bytes or characters.
+
+
+	function validChunk(stream, state, chunk, cb) {
+	  var valid = true;
+	  var er = false; // Always throw error if a null is written
+	  // if we are not in object mode then throw
+	  // if it is not a buffer, string, or undefined.
+
+	  if (chunk === null) {
+	    er = new TypeError('May not write null values to stream');
+	  } else if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+	    er = new TypeError('Invalid non-string/buffer chunk');
+	  }
+
+	  if (er) {
+	    stream.emit('error', er);
+	    nextTick(cb, er);
+	    valid = false;
+	  }
+
+	  return valid;
+	}
+
+	Writable.prototype.write = function (chunk, encoding, cb) {
+	  var state = this._writableState;
+	  var ret = false;
+
+	  if (typeof encoding === 'function') {
+	    cb = encoding;
+	    encoding = null;
+	  }
+
+	  if (Buffer.isBuffer(chunk)) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+	  if (typeof cb !== 'function') cb = nop;
+	  if (state.ended) writeAfterEnd(this, cb);else if (validChunk(this, state, chunk, cb)) {
+	    state.pendingcb++;
+	    ret = writeOrBuffer(this, state, chunk, encoding, cb);
+	  }
+	  return ret;
+	};
+
+	Writable.prototype.cork = function () {
+	  var state = this._writableState;
+	  state.corked++;
+	};
+
+	Writable.prototype.uncork = function () {
+	  var state = this._writableState;
+
+	  if (state.corked) {
+	    state.corked--;
+	    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+	  }
+	};
+
+	Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+	  // node::ParseEncoding() requires lower case.
+	  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+	  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+	  this._writableState.defaultEncoding = encoding;
+	  return this;
+	};
+
+	function decodeChunk(state, chunk, encoding) {
+	  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+	    chunk = Buffer.from(chunk, encoding);
+	  }
+
+	  return chunk;
+	} // if we're already writing something, then just put this
+	// in the queue, and wait our turn.  Otherwise, call _write
+	// If we return false, then we need a drain event, so set that flag.
+
+
+	function writeOrBuffer(stream, state, chunk, encoding, cb) {
+	  chunk = decodeChunk(state, chunk, encoding);
+	  if (Buffer.isBuffer(chunk)) encoding = 'buffer';
+	  var len = state.objectMode ? 1 : chunk.length;
+	  state.length += len;
+	  var ret = state.length < state.highWaterMark; // we must ensure that previous needDrain will not be reset to false.
+
+	  if (!ret) state.needDrain = true;
+
+	  if (state.writing || state.corked) {
+	    var last = state.lastBufferedRequest;
+	    state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
+
+	    if (last) {
+	      last.next = state.lastBufferedRequest;
+	    } else {
+	      state.bufferedRequest = state.lastBufferedRequest;
+	    }
+
+	    state.bufferedRequestCount += 1;
+	  } else {
+	    doWrite(stream, state, false, len, chunk, encoding, cb);
+	  }
+
+	  return ret;
+	}
+
+	function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+	  state.writelen = len;
+	  state.writecb = cb;
+	  state.writing = true;
+	  state.sync = true;
+	  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+	  state.sync = false;
+	}
+
+	function onwriteError(stream, state, sync, er, cb) {
+	  --state.pendingcb;
+	  if (sync) nextTick(cb, er);else cb(er);
+	  stream._writableState.errorEmitted = true;
+	  stream.emit('error', er);
+	}
+
+	function onwriteStateUpdate(state) {
+	  state.writing = false;
+	  state.writecb = null;
+	  state.length -= state.writelen;
+	  state.writelen = 0;
+	}
+
+	function onwrite(stream, er) {
+	  var state = stream._writableState;
+	  var sync = state.sync;
+	  var cb = state.writecb;
+	  onwriteStateUpdate(state);
+	  if (er) onwriteError(stream, state, sync, er, cb);else {
+	    // Check if we're actually ready to finish, but don't emit yet
+	    var finished = needFinish(state);
+
+	    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+	      clearBuffer(stream, state);
+	    }
+
+	    if (sync) {
+	      /*<replacement>*/
+	      nextTick(afterWrite, stream, state, finished, cb);
+	      /*</replacement>*/
+	    } else {
+	      afterWrite(stream, state, finished, cb);
+	    }
+	  }
+	}
+
+	function afterWrite(stream, state, finished, cb) {
+	  if (!finished) onwriteDrain(stream, state);
+	  state.pendingcb--;
+	  cb();
+	  finishMaybe(stream, state);
+	} // Must force callback to be called on nextTick, so that we don't
+	// emit 'drain' before the write() consumer gets the 'false' return
+	// value, and has a chance to attach a 'drain' listener.
+
+
+	function onwriteDrain(stream, state) {
+	  if (state.length === 0 && state.needDrain) {
+	    state.needDrain = false;
+	    stream.emit('drain');
+	  }
+	} // if there's something in the buffer waiting, then process it
+
+
+	function clearBuffer(stream, state) {
+	  state.bufferProcessing = true;
+	  var entry = state.bufferedRequest;
+
+	  if (stream._writev && entry && entry.next) {
+	    // Fast case, write everything using _writev()
+	    var l = state.bufferedRequestCount;
+	    var buffer = new Array(l);
+	    var holder = state.corkedRequestsFree;
+	    holder.entry = entry;
+	    var count = 0;
+
+	    while (entry) {
+	      buffer[count] = entry;
+	      entry = entry.next;
+	      count += 1;
+	    }
+
+	    doWrite(stream, state, true, state.length, buffer, '', holder.finish); // doWrite is almost always async, defer these to save a bit of time
+	    // as the hot path ends with doWrite
+
+	    state.pendingcb++;
+	    state.lastBufferedRequest = null;
+
+	    if (holder.next) {
+	      state.corkedRequestsFree = holder.next;
+	      holder.next = null;
+	    } else {
+	      state.corkedRequestsFree = new CorkedRequest(state);
+	    }
+	  } else {
+	    // Slow case, write chunks one-by-one
+	    while (entry) {
+	      var chunk = entry.chunk;
+	      var encoding = entry.encoding;
+	      var cb = entry.callback;
+	      var len = state.objectMode ? 1 : chunk.length;
+	      doWrite(stream, state, false, len, chunk, encoding, cb);
+	      entry = entry.next; // if we didn't call the onwrite immediately, then
+	      // it means that we need to wait until it does.
+	      // also, that means that the chunk and cb are currently
+	      // being processed, so move the buffer counter past them.
+
+	      if (state.writing) {
+	        break;
+	      }
+	    }
+
+	    if (entry === null) state.lastBufferedRequest = null;
+	  }
+
+	  state.bufferedRequestCount = 0;
+	  state.bufferedRequest = entry;
+	  state.bufferProcessing = false;
+	}
+
+	Writable.prototype._write = function (chunk, encoding, cb) {
+	  cb(new Error('not implemented'));
+	};
+
+	Writable.prototype._writev = null;
+
+	Writable.prototype.end = function (chunk, encoding, cb) {
+	  var state = this._writableState;
+
+	  if (typeof chunk === 'function') {
+	    cb = chunk;
+	    chunk = null;
+	    encoding = null;
+	  } else if (typeof encoding === 'function') {
+	    cb = encoding;
+	    encoding = null;
+	  }
+
+	  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks
+
+	  if (state.corked) {
+	    state.corked = 1;
+	    this.uncork();
+	  } // ignore unnecessary end() calls.
+
+
+	  if (!state.ending && !state.finished) endWritable(this, state, cb);
+	};
+
+	function needFinish(state) {
+	  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+	}
+
+	function prefinish(stream, state) {
+	  if (!state.prefinished) {
+	    state.prefinished = true;
+	    stream.emit('prefinish');
+	  }
+	}
+
+	function finishMaybe(stream, state) {
+	  var need = needFinish(state);
+
+	  if (need) {
+	    if (state.pendingcb === 0) {
+	      prefinish(stream, state);
+	      state.finished = true;
+	      stream.emit('finish');
+	    } else {
+	      prefinish(stream, state);
+	    }
+	  }
+
+	  return need;
+	}
+
+	function endWritable(stream, state, cb) {
+	  state.ending = true;
+	  finishMaybe(stream, state);
+
+	  if (cb) {
+	    if (state.finished) nextTick(cb);else stream.once('finish', cb);
+	  }
+
+	  state.ended = true;
+	  stream.writable = false;
+	} // It seems a linked list but it is not
+	// there will be only 2 of these for each stream
+
+
+	function CorkedRequest(state) {
+	  var _this = this;
+
+	  this.next = null;
+	  this.entry = null;
+
+	  this.finish = function (err) {
+	    var entry = _this.entry;
+	    _this.entry = null;
+
+	    while (entry) {
+	      var cb = entry.callback;
+	      state.pendingcb--;
+	      cb(err);
+	      entry = entry.next;
+	    }
+
+	    if (state.corkedRequestsFree) {
+	      state.corkedRequestsFree.next = _this;
+	    } else {
+	      state.corkedRequestsFree = _this;
+	    }
+	  };
+	}
+
+	inherits$3(Duplex, Readable);
+	var keys = Object.keys(Writable.prototype);
+
+	for (var v = 0; v < keys.length; v++) {
+	  var method = keys[v];
+	  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+	}
+	function Duplex(options) {
+	  if (!(this instanceof Duplex)) return new Duplex(options);
+	  Readable.call(this, options);
+	  Writable.call(this, options);
+	  if (options && options.readable === false) this.readable = false;
+	  if (options && options.writable === false) this.writable = false;
+	  this.allowHalfOpen = true;
+	  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
+	  this.once('end', onend);
+	} // the no-half-open enforcer
+
+	function onend() {
+	  // if we allow half-open state, or if the writable side ended,
+	  // then we're ok.
+	  if (this.allowHalfOpen || this._writableState.ended) return; // no more data can be written.
+	  // But allow more writes to happen in this tick.
+
+	  nextTick(onEndNT, this);
+	}
+
+	function onEndNT(self) {
+	  self.end();
+	}
+
+	// a transform stream is a readable/writable stream where you do
+	inherits$3(Transform, Duplex);
+
+	function TransformState(stream) {
+	  this.afterTransform = function (er, data) {
+	    return afterTransform(stream, er, data);
+	  };
+
+	  this.needTransform = false;
+	  this.transforming = false;
+	  this.writecb = null;
+	  this.writechunk = null;
+	  this.writeencoding = null;
+	}
+
+	function afterTransform(stream, er, data) {
+	  var ts = stream._transformState;
+	  ts.transforming = false;
+	  var cb = ts.writecb;
+	  if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));
+	  ts.writechunk = null;
+	  ts.writecb = null;
+	  if (data !== null && data !== undefined) stream.push(data);
+	  cb(er);
+	  var rs = stream._readableState;
+	  rs.reading = false;
+
+	  if (rs.needReadable || rs.length < rs.highWaterMark) {
+	    stream._read(rs.highWaterMark);
+	  }
+	}
+	function Transform(options) {
+	  if (!(this instanceof Transform)) return new Transform(options);
+	  Duplex.call(this, options);
+	  this._transformState = new TransformState(this); // when the writable side finishes, then flush out anything remaining.
+
+	  var stream = this; // start out asking for a readable event once data is transformed.
+
+	  this._readableState.needReadable = true; // we have implemented the _read method, and done the other things
+	  // that Readable wants before the first _read call, so unset the
+	  // sync guard flag.
+
+	  this._readableState.sync = false;
+
+	  if (options) {
+	    if (typeof options.transform === 'function') this._transform = options.transform;
+	    if (typeof options.flush === 'function') this._flush = options.flush;
+	  }
+
+	  this.once('prefinish', function () {
+	    if (typeof this._flush === 'function') this._flush(function (er) {
+	      done(stream, er);
+	    });else done(stream);
+	  });
+	}
+
+	Transform.prototype.push = function (chunk, encoding) {
+	  this._transformState.needTransform = false;
+	  return Duplex.prototype.push.call(this, chunk, encoding);
+	}; // This is the part where you do stuff!
+	// override this function in implementation classes.
+	// 'chunk' is an input chunk.
+	//
+	// Call `push(newChunk)` to pass along transformed output
+	// to the readable side.  You may call 'push' zero or more times.
+	//
+	// Call `cb(err)` when you are done with this chunk.  If you pass
+	// an error, then that'll put the hurt on the whole operation.  If you
+	// never call cb(), then you'll never get another chunk.
+
+
+	Transform.prototype._transform = function (chunk, encoding, cb) {
+	  throw new Error('Not implemented');
+	};
+
+	Transform.prototype._write = function (chunk, encoding, cb) {
+	  var ts = this._transformState;
+	  ts.writecb = cb;
+	  ts.writechunk = chunk;
+	  ts.writeencoding = encoding;
+
+	  if (!ts.transforming) {
+	    var rs = this._readableState;
+	    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+	  }
+	}; // Doesn't matter what the args are here.
+	// _transform does all the work.
+	// That we got here means that the readable side wants more data.
+
+
+	Transform.prototype._read = function (n) {
+	  var ts = this._transformState;
+
+	  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+	    ts.transforming = true;
+
+	    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+	  } else {
+	    // mark that we need a transform, so that any data that comes in
+	    // will get processed, now that we've asked for it.
+	    ts.needTransform = true;
+	  }
+	};
+
+	function done(stream, er) {
+	  if (er) return stream.emit('error', er); // if there's nothing in the write buffer, then that means
+	  // that nothing more will ever be provided
+
+	  var ws = stream._writableState;
+	  var ts = stream._transformState;
+	  if (ws.length) throw new Error('Calling transform done when ws.length != 0');
+	  if (ts.transforming) throw new Error('Calling transform done when still transforming');
+	  return stream.push(null);
+	}
+
+	inherits$3(PassThrough, Transform);
+	function PassThrough(options) {
+	  if (!(this instanceof PassThrough)) return new PassThrough(options);
+	  Transform.call(this, options);
+	}
+
+	PassThrough.prototype._transform = function (chunk, encoding, cb) {
+	  cb(null, chunk);
+	};
+
+	inherits$3(Stream, EventEmitter$2);
+	Stream.Readable = Readable;
+	Stream.Writable = Writable;
+	Stream.Duplex = Duplex;
+	Stream.Transform = Transform;
+	Stream.PassThrough = PassThrough; // Backwards-compat with node 0.4.x
+
+	Stream.Stream = Stream;
+	// part of this class) is overridden in the Readable class.
+
+	function Stream() {
+	  EventEmitter$2.call(this);
+	}
+
+	Stream.prototype.pipe = function (dest, options) {
+	  var source = this;
+
+	  function ondata(chunk) {
+	    if (dest.writable) {
+	      if (false === dest.write(chunk) && source.pause) {
+	        source.pause();
+	      }
+	    }
+	  }
+
+	  source.on('data', ondata);
+
+	  function ondrain() {
+	    if (source.readable && source.resume) {
+	      source.resume();
+	    }
+	  }
+
+	  dest.on('drain', ondrain); // If the 'end' option is not supplied, dest.end() will be called when
+	  // source gets the 'end' or 'close' events.  Only dest.end() once.
+
+	  if (!dest._isStdio && (!options || options.end !== false)) {
+	    source.on('end', onend);
+	    source.on('close', onclose);
+	  }
+
+	  var didOnEnd = false;
+
+	  function onend() {
+	    if (didOnEnd) return;
+	    didOnEnd = true;
+	    dest.end();
+	  }
+
+	  function onclose() {
+	    if (didOnEnd) return;
+	    didOnEnd = true;
+	    if (typeof dest.destroy === 'function') dest.destroy();
+	  } // don't leave dangling pipes when there are errors.
+
+
+	  function onerror(er) {
+	    cleanup();
+
+	    if (EventEmitter$2.listenerCount(this, 'error') === 0) {
+	      throw er; // Unhandled stream error in pipe.
+	    }
+	  }
+
+	  source.on('error', onerror);
+	  dest.on('error', onerror); // remove all the event listeners that were added.
+
+	  function cleanup() {
+	    source.removeListener('data', ondata);
+	    dest.removeListener('drain', ondrain);
+	    source.removeListener('end', onend);
+	    source.removeListener('close', onclose);
+	    source.removeListener('error', onerror);
+	    dest.removeListener('error', onerror);
+	    source.removeListener('end', cleanup);
+	    source.removeListener('close', cleanup);
+	    dest.removeListener('close', cleanup);
+	  }
+
+	  source.on('end', cleanup);
+	  source.on('close', cleanup);
+	  dest.on('close', cleanup);
+	  dest.emit('pipe', source); // Allow for unix-like usage: A.pipe(B).pipe(C)
+
+	  return dest;
+	};
+
+	var WritableStream = Stream.Writable;
+	var inherits$1 = util.inherits;
+	var browserStdout = BrowserStdout;
+	inherits$1(BrowserStdout, WritableStream);
+
+	function BrowserStdout(opts) {
+	  if (!(this instanceof BrowserStdout)) return new BrowserStdout(opts);
+	  opts = opts || {};
+	  WritableStream.call(this, opts);
+	  this.label = opts.label !== undefined ? opts.label : 'stdout';
+	}
+
+	BrowserStdout.prototype._write = function (chunks, encoding, cb) {
+	  var output = chunks.toString ? chunks.toString() : chunks;
+
+	  if (this.label === false) {
+	    console.log(output);
+	  } else {
+	    console.log(this.label + ':', output);
+	  }
+
+	  nextTick$1(cb);
+	};
+
+	var parseQuery = function parseQuery(qs) {
+	  return qs.replace('?', '').split('&').reduce(function (obj, pair) {
+	    var i = pair.indexOf('=');
+	    var key = pair.slice(0, i);
+	    var val = pair.slice(++i); // Due to how the URLSearchParams API treats spaces
+
+	    obj[key] = decodeURIComponent(val.replace(/\+/g, '%20'));
+	    return obj;
+	  }, {});
+	};
+
+	function highlight(js) {
+	  return js.replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/\/\/(.*)/gm, '<span class="comment">//$1</span>').replace(/('.*?')/gm, '<span class="string">$1</span>').replace(/(\d+\.\d+)/gm, '<span class="number">$1</span>').replace(/(\d+)/gm, '<span class="number">$1</span>').replace(/\bnew[ \t]+(\w+)/gm, '<span class="keyword">new</span> <span class="init">$1</span>').replace(/\b(function|new|throw|return|var|if|else)\b/gm, '<span class="keyword">$1</span>');
+	}
+	/**
+	 * Highlight the contents of tag `name`.
+	 *
+	 * @private
+	 * @param {string} name
+	 */
+
+
+	var highlightTags = function highlightTags(name) {
+	  var code = document.getElementById('mocha').getElementsByTagName(name);
+
+	  for (var i = 0, len = code.length; i < len; ++i) {
+	    code[i].innerHTML = highlight(code[i].innerHTML);
+	  }
+	};
+
+	// `Symbol.iterator` well-known symbol
+	// https://tc39.es/ecma262/#sec-symbol.iterator
+	defineWellKnownSymbol('iterator');
+
+	var charAt = stringMultibyte.charAt;
+
+
+
+
+	var STRING_ITERATOR = 'String Iterator';
+	var setInternalState$2 = internalState.set;
+	var getInternalState$1 = internalState.getterFor(STRING_ITERATOR);
+
+	// `String.prototype[@@iterator]` method
+	// https://tc39.es/ecma262/#sec-string.prototype-@@iterator
+	defineIterator(String, 'String', function (iterated) {
+	  setInternalState$2(this, {
+	    type: STRING_ITERATOR,
+	    string: toString_1(iterated),
+	    index: 0
+	  });
+	// `%StringIteratorPrototype%.next` method
+	// https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
+	}, function next() {
+	  var state = getInternalState$1(this);
+	  var string = state.string;
+	  var index = state.index;
+	  var point;
+	  if (index >= string.length) return { value: undefined, done: true };
+	  point = charAt(string, index);
+	  state.index += point.length;
+	  return { value: point, done: false };
+	});
+
+	var ITERATOR = wellKnownSymbol('iterator');
+	var TO_STRING_TAG = wellKnownSymbol('toStringTag');
+	var ArrayValues = es_array_iterator.values;
+
+	var handlePrototype = function (CollectionPrototype, COLLECTION_NAME) {
+	  if (CollectionPrototype) {
+	    // some Chrome versions have non-configurable methods on DOMTokenList
+	    if (CollectionPrototype[ITERATOR] !== ArrayValues) try {
+	      createNonEnumerableProperty(CollectionPrototype, ITERATOR, ArrayValues);
+	    } catch (error) {
+	      CollectionPrototype[ITERATOR] = ArrayValues;
+	    }
+	    if (!CollectionPrototype[TO_STRING_TAG]) {
+	      createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);
+	    }
+	    if (domIterables[COLLECTION_NAME]) for (var METHOD_NAME in es_array_iterator) {
+	      // some Chrome versions have non-configurable methods on DOMTokenList
+	      if (CollectionPrototype[METHOD_NAME] !== es_array_iterator[METHOD_NAME]) try {
+	        createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, es_array_iterator[METHOD_NAME]);
+	      } catch (error) {
+	        CollectionPrototype[METHOD_NAME] = es_array_iterator[METHOD_NAME];
+	      }
+	    }
+	  }
+	};
+
+	for (var COLLECTION_NAME in domIterables) {
+	  handlePrototype(global_1[COLLECTION_NAME] && global_1[COLLECTION_NAME].prototype, COLLECTION_NAME);
+	}
+
+	handlePrototype(domTokenListPrototype, 'DOMTokenList');
+
+	// `Symbol.asyncIterator` well-known symbol
+	// https://tc39.es/ecma262/#sec-symbol.asynciterator
+	defineWellKnownSymbol('asyncIterator');
+
+	// `Symbol.toStringTag` well-known symbol
+	// https://tc39.es/ecma262/#sec-symbol.tostringtag
+	defineWellKnownSymbol('toStringTag');
+
+	// JSON[@@toStringTag] property
+	// https://tc39.es/ecma262/#sec-json-@@tostringtag
+	setToStringTag(global_1.JSON, 'JSON', true);
+
+	// Math[@@toStringTag] property
+	// https://tc39.es/ecma262/#sec-math-@@tostringtag
+	setToStringTag(Math, 'Math', true);
+
+	var nativePromiseConstructor = global_1.Promise;
+
+	var iteratorClose = function (iterator, kind, value) {
+	  var innerResult, innerError;
+	  anObject(iterator);
+	  try {
+	    innerResult = getMethod(iterator, 'return');
+	    if (!innerResult) {
+	      if (kind === 'throw') throw value;
+	      return value;
+	    }
+	    innerResult = innerResult.call(iterator);
+	  } catch (error) {
+	    innerError = true;
+	    innerResult = error;
+	  }
+	  if (kind === 'throw') throw value;
+	  if (innerError) throw innerResult;
+	  anObject(innerResult);
+	  return value;
+	};
+
+	var Result = function (stopped, result) {
+	  this.stopped = stopped;
+	  this.result = result;
+	};
+
+	var iterate = function (iterable, unboundFunction, options) {
+	  var that = options && options.that;
+	  var AS_ENTRIES = !!(options && options.AS_ENTRIES);
+	  var IS_ITERATOR = !!(options && options.IS_ITERATOR);
+	  var INTERRUPTED = !!(options && options.INTERRUPTED);
+	  var fn = functionBindContext(unboundFunction, that, 1 + AS_ENTRIES + INTERRUPTED);
+	  var iterator, iterFn, index, length, result, next, step;
+
+	  var stop = function (condition) {
+	    if (iterator) iteratorClose(iterator, 'normal', condition);
+	    return new Result(true, condition);
+	  };
+
+	  var callFn = function (value) {
+	    if (AS_ENTRIES) {
+	      anObject(value);
+	      return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
+	    } return INTERRUPTED ? fn(value, stop) : fn(value);
+	  };
+
+	  if (IS_ITERATOR) {
+	    iterator = iterable;
+	  } else {
+	    iterFn = getIteratorMethod(iterable);
+	    if (!iterFn) throw TypeError(String(iterable) + ' is not iterable');
+	    // optimisation for array iterators
+	    if (isArrayIteratorMethod(iterFn)) {
+	      for (index = 0, length = toLength(iterable.length); length > index; index++) {
+	        result = callFn(iterable[index]);
+	        if (result && result instanceof Result) return result;
+	      } return new Result(false);
+	    }
+	    iterator = getIterator(iterable, iterFn);
+	  }
+
+	  next = iterator.next;
+	  while (!(step = next.call(iterator)).done) {
+	    try {
+	      result = callFn(step.value);
+	    } catch (error) {
+	      iteratorClose(iterator, 'throw', error);
+	    }
+	    if (typeof result == 'object' && result && result instanceof Result) return result;
+	  } return new Result(false);
+	};
+
+	var engineIsIos = /(?:ipad|iphone|ipod).*applewebkit/i.test(engineUserAgent);
+
+	var engineIsNode = classofRaw(global_1.process) == 'process';
+
+	var set = global_1.setImmediate;
+	var clear = global_1.clearImmediate;
+	var process$2 = global_1.process;
+	var MessageChannel = global_1.MessageChannel;
+	var Dispatch = global_1.Dispatch;
+	var counter = 0;
+	var queue = {};
+	var ONREADYSTATECHANGE = 'onreadystatechange';
+	var location$1, defer, channel, port;
+
 	try {
-		origDefineProperty(obj, 'x', { enumerable: false, value: obj });
-		// eslint-disable-next-line no-unused-vars, no-restricted-syntax
-		for (var _ in obj) { // jscs:ignore disallowUnusedVariables
-			return false;
-		}
-		return obj.x === obj;
-	} catch (e) { /* this is IE 8. */
-		return false;
-	}
-};
-var supportsDescriptors = origDefineProperty && arePropertyDescriptorsSupported();
-
-var defineProperty = function (object, name, value, predicate) {
-	if (name in object && (!isFunction(predicate) || !predicate())) {
-		return;
-	}
-	if (supportsDescriptors) {
-		origDefineProperty(object, name, {
-			configurable: true,
-			enumerable: false,
-			value: value,
-			writable: true
-		});
-	} else {
-		object[name] = value;
+	  // Deno throws a ReferenceError on `location` access without `--location` flag
+	  location$1 = global_1.location;
+	} catch (error) { /* empty */ }
+
+	var run = function (id) {
+	  // eslint-disable-next-line no-prototype-builtins -- safe
+	  if (queue.hasOwnProperty(id)) {
+	    var fn = queue[id];
+	    delete queue[id];
+	    fn();
+	  }
+	};
+
+	var runner$1 = function (id) {
+	  return function () {
+	    run(id);
+	  };
+	};
+
+	var listener = function (event) {
+	  run(event.data);
+	};
+
+	var post = function (id) {
+	  // old engines have not location.origin
+	  global_1.postMessage(String(id), location$1.protocol + '//' + location$1.host);
+	};
+
+	// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
+	if (!set || !clear) {
+	  set = function setImmediate(fn) {
+	    var args = [];
+	    var argumentsLength = arguments.length;
+	    var i = 1;
+	    while (argumentsLength > i) args.push(arguments[i++]);
+	    queue[++counter] = function () {
+	      // eslint-disable-next-line no-new-func -- spec requirement
+	      (isCallable(fn) ? fn : Function(fn)).apply(undefined, args);
+	    };
+	    defer(counter);
+	    return counter;
+	  };
+	  clear = function clearImmediate(id) {
+	    delete queue[id];
+	  };
+	  // Node.js 0.8-
+	  if (engineIsNode) {
+	    defer = function (id) {
+	      process$2.nextTick(runner$1(id));
+	    };
+	  // Sphere (JS game engine) Dispatch API
+	  } else if (Dispatch && Dispatch.now) {
+	    defer = function (id) {
+	      Dispatch.now(runner$1(id));
+	    };
+	  // Browsers with MessageChannel, includes WebWorkers
+	  // except iOS - https://github.com/zloirock/core-js/issues/624
+	  } else if (MessageChannel && !engineIsIos) {
+	    channel = new MessageChannel();
+	    port = channel.port2;
+	    channel.port1.onmessage = listener;
+	    defer = functionBindContext(port.postMessage, port, 1);
+	  // Browsers with postMessage, skip WebWorkers
+	  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
+	  } else if (
+	    global_1.addEventListener &&
+	    isCallable(global_1.postMessage) &&
+	    !global_1.importScripts &&
+	    location$1 && location$1.protocol !== 'file:' &&
+	    !fails(post)
+	  ) {
+	    defer = post;
+	    global_1.addEventListener('message', listener, false);
+	  // IE8-
+	  } else if (ONREADYSTATECHANGE in documentCreateElement('script')) {
+	    defer = function (id) {
+	      html$1.appendChild(documentCreateElement('script'))[ONREADYSTATECHANGE] = function () {
+	        html$1.removeChild(this);
+	        run(id);
+	      };
+	    };
+	  // Rest old browsers
+	  } else {
+	    defer = function (id) {
+	      setTimeout(runner$1(id), 0);
+	    };
+	  }
+	}
+
+	var task$1 = {
+	  set: set,
+	  clear: clear
+	};
+
+	var engineIsIosPebble = /ipad|iphone|ipod/i.test(engineUserAgent) && global_1.Pebble !== undefined;
+
+	var engineIsWebosWebkit = /web0s(?!.*chrome)/i.test(engineUserAgent);
+
+	var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
+	var macrotask = task$1.set;
+
+
+
+
+
+	var MutationObserver = global_1.MutationObserver || global_1.WebKitMutationObserver;
+	var document$2 = global_1.document;
+	var process$1 = global_1.process;
+	var Promise$1 = global_1.Promise;
+	// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`
+	var queueMicrotaskDescriptor = getOwnPropertyDescriptor(global_1, 'queueMicrotask');
+	var queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;
+
+	var flush, head, last, notify$2, toggle, node, promise, then;
+
+	// modern engines have queueMicrotask method
+	if (!queueMicrotask) {
+	  flush = function () {
+	    var parent, fn;
+	    if (engineIsNode && (parent = process$1.domain)) parent.exit();
+	    while (head) {
+	      fn = head.fn;
+	      head = head.next;
+	      try {
+	        fn();
+	      } catch (error) {
+	        if (head) notify$2();
+	        else last = undefined;
+	        throw error;
+	      }
+	    } last = undefined;
+	    if (parent) parent.enter();
+	  };
+
+	  // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
+	  // also except WebOS Webkit https://github.com/zloirock/core-js/issues/898
+	  if (!engineIsIos && !engineIsNode && !engineIsWebosWebkit && MutationObserver && document$2) {
+	    toggle = true;
+	    node = document$2.createTextNode('');
+	    new MutationObserver(flush).observe(node, { characterData: true });
+	    notify$2 = function () {
+	      node.data = toggle = !toggle;
+	    };
+	  // environments with maybe non-completely correct, but existent Promise
+	  } else if (!engineIsIosPebble && Promise$1 && Promise$1.resolve) {
+	    // Promise.resolve without an argument throws an error in LG WebOS 2
+	    promise = Promise$1.resolve(undefined);
+	    // workaround of WebKit ~ iOS Safari 10.1 bug
+	    promise.constructor = Promise$1;
+	    then = promise.then;
+	    notify$2 = function () {
+	      then.call(promise, flush);
+	    };
+	  // Node.js without promises
+	  } else if (engineIsNode) {
+	    notify$2 = function () {
+	      process$1.nextTick(flush);
+	    };
+	  // for other environments - macrotask based on:
+	  // - setImmediate
+	  // - MessageChannel
+	  // - window.postMessag
+	  // - onreadystatechange
+	  // - setTimeout
+	  } else {
+	    notify$2 = function () {
+	      // strange IE + webpack dev server bug - use .call(global)
+	      macrotask.call(global_1, flush);
+	    };
+	  }
+	}
+
+	var microtask = queueMicrotask || function (fn) {
+	  var task = { fn: fn, next: undefined };
+	  if (last) last.next = task;
+	  if (!head) {
+	    head = task;
+	    notify$2();
+	  } last = task;
+	};
+
+	var PromiseCapability = function (C) {
+	  var resolve, reject;
+	  this.promise = new C(function ($$resolve, $$reject) {
+	    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
+	    resolve = $$resolve;
+	    reject = $$reject;
+	  });
+	  this.resolve = aCallable(resolve);
+	  this.reject = aCallable(reject);
+	};
+
+	// `NewPromiseCapability` abstract operation
+	// https://tc39.es/ecma262/#sec-newpromisecapability
+	var f = function (C) {
+	  return new PromiseCapability(C);
+	};
+
+	var newPromiseCapability$1 = {
+		f: f
+	};
+
+	var promiseResolve = function (C, x) {
+	  anObject(C);
+	  if (isObject$1(x) && x.constructor === C) return x;
+	  var promiseCapability = newPromiseCapability$1.f(C);
+	  var resolve = promiseCapability.resolve;
+	  resolve(x);
+	  return promiseCapability.promise;
+	};
+
+	var hostReportErrors = function (a, b) {
+	  var console = global_1.console;
+	  if (console && console.error) {
+	    arguments.length === 1 ? console.error(a) : console.error(a, b);
+	  }
+	};
+
+	var perform = function (exec) {
+	  try {
+	    return { error: false, value: exec() };
+	  } catch (error) {
+	    return { error: true, value: error };
+	  }
+	};
+
+	var engineIsBrowser = typeof window == 'object';
+
+	var task = task$1.set;
+
+
+
+
+
+
+
+
+
+
+
+
+	var SPECIES = wellKnownSymbol('species');
+	var PROMISE = 'Promise';
+	var getInternalState = internalState.get;
+	var setInternalState$1 = internalState.set;
+	var getInternalPromiseState = internalState.getterFor(PROMISE);
+	var NativePromisePrototype = nativePromiseConstructor && nativePromiseConstructor.prototype;
+	var PromiseConstructor = nativePromiseConstructor;
+	var PromiseConstructorPrototype = NativePromisePrototype;
+	var TypeError$1 = global_1.TypeError;
+	var document$1 = global_1.document;
+	var process = global_1.process;
+	var newPromiseCapability = newPromiseCapability$1.f;
+	var newGenericPromiseCapability = newPromiseCapability;
+	var DISPATCH_EVENT = !!(document$1 && document$1.createEvent && global_1.dispatchEvent);
+	var NATIVE_REJECTION_EVENT = isCallable(global_1.PromiseRejectionEvent);
+	var UNHANDLED_REJECTION = 'unhandledrejection';
+	var REJECTION_HANDLED = 'rejectionhandled';
+	var PENDING = 0;
+	var FULFILLED = 1;
+	var REJECTED = 2;
+	var HANDLED = 1;
+	var UNHANDLED = 2;
+	var SUBCLASSING = false;
+	var Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;
+
+	var FORCED$2 = isForced_1(PROMISE, function () {
+	  var PROMISE_CONSTRUCTOR_SOURCE = inspectSource(PromiseConstructor);
+	  var GLOBAL_CORE_JS_PROMISE = PROMISE_CONSTRUCTOR_SOURCE !== String(PromiseConstructor);
+	  // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
+	  // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
+	  // We can't detect it synchronously, so just check versions
+	  if (!GLOBAL_CORE_JS_PROMISE && engineV8Version === 66) return true;
+	  // We can't use @@species feature detection in V8 since it causes
+	  // deoptimization and performance degradation
+	  // https://github.com/zloirock/core-js/issues/679
+	  if (engineV8Version >= 51 && /native code/.test(PROMISE_CONSTRUCTOR_SOURCE)) return false;
+	  // Detect correctness of subclassing with @@species support
+	  var promise = new PromiseConstructor(function (resolve) { resolve(1); });
+	  var FakePromise = function (exec) {
+	    exec(function () { /* empty */ }, function () { /* empty */ });
+	  };
+	  var constructor = promise.constructor = {};
+	  constructor[SPECIES] = FakePromise;
+	  SUBCLASSING = promise.then(function () { /* empty */ }) instanceof FakePromise;
+	  if (!SUBCLASSING) return true;
+	  // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test
+	  return !GLOBAL_CORE_JS_PROMISE && engineIsBrowser && !NATIVE_REJECTION_EVENT;
+	});
+
+	var INCORRECT_ITERATION$1 = FORCED$2 || !checkCorrectnessOfIteration(function (iterable) {
+	  PromiseConstructor.all(iterable)['catch'](function () { /* empty */ });
+	});
+
+	// helpers
+	var isThenable = function (it) {
+	  var then;
+	  return isObject$1(it) && isCallable(then = it.then) ? then : false;
+	};
+
+	var notify$1 = function (state, isReject) {
+	  if (state.notified) return;
+	  state.notified = true;
+	  var chain = state.reactions;
+	  microtask(function () {
+	    var value = state.value;
+	    var ok = state.state == FULFILLED;
+	    var index = 0;
+	    // variable length - can't use forEach
+	    while (chain.length > index) {
+	      var reaction = chain[index++];
+	      var handler = ok ? reaction.ok : reaction.fail;
+	      var resolve = reaction.resolve;
+	      var reject = reaction.reject;
+	      var domain = reaction.domain;
+	      var result, then, exited;
+	      try {
+	        if (handler) {
+	          if (!ok) {
+	            if (state.rejection === UNHANDLED) onHandleUnhandled(state);
+	            state.rejection = HANDLED;
+	          }
+	          if (handler === true) result = value;
+	          else {
+	            if (domain) domain.enter();
+	            result = handler(value); // can throw
+	            if (domain) {
+	              domain.exit();
+	              exited = true;
+	            }
+	          }
+	          if (result === reaction.promise) {
+	            reject(TypeError$1('Promise-chain cycle'));
+	          } else if (then = isThenable(result)) {
+	            then.call(result, resolve, reject);
+	          } else resolve(result);
+	        } else reject(value);
+	      } catch (error) {
+	        if (domain && !exited) domain.exit();
+	        reject(error);
+	      }
+	    }
+	    state.reactions = [];
+	    state.notified = false;
+	    if (isReject && !state.rejection) onUnhandled(state);
+	  });
+	};
+
+	var dispatchEvent = function (name, promise, reason) {
+	  var event, handler;
+	  if (DISPATCH_EVENT) {
+	    event = document$1.createEvent('Event');
+	    event.promise = promise;
+	    event.reason = reason;
+	    event.initEvent(name, false, true);
+	    global_1.dispatchEvent(event);
+	  } else event = { promise: promise, reason: reason };
+	  if (!NATIVE_REJECTION_EVENT && (handler = global_1['on' + name])) handler(event);
+	  else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);
+	};
+
+	var onUnhandled = function (state) {
+	  task.call(global_1, function () {
+	    var promise = state.facade;
+	    var value = state.value;
+	    var IS_UNHANDLED = isUnhandled(state);
+	    var result;
+	    if (IS_UNHANDLED) {
+	      result = perform(function () {
+	        if (engineIsNode) {
+	          process.emit('unhandledRejection', value, promise);
+	        } else dispatchEvent(UNHANDLED_REJECTION, promise, value);
+	      });
+	      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
+	      state.rejection = engineIsNode || isUnhandled(state) ? UNHANDLED : HANDLED;
+	      if (result.error) throw result.value;
+	    }
+	  });
+	};
+
+	var isUnhandled = function (state) {
+	  return state.rejection !== HANDLED && !state.parent;
+	};
+
+	var onHandleUnhandled = function (state) {
+	  task.call(global_1, function () {
+	    var promise = state.facade;
+	    if (engineIsNode) {
+	      process.emit('rejectionHandled', promise);
+	    } else dispatchEvent(REJECTION_HANDLED, promise, state.value);
+	  });
+	};
+
+	var bind = function (fn, state, unwrap) {
+	  return function (value) {
+	    fn(state, value, unwrap);
+	  };
+	};
+
+	var internalReject = function (state, value, unwrap) {
+	  if (state.done) return;
+	  state.done = true;
+	  if (unwrap) state = unwrap;
+	  state.value = value;
+	  state.state = REJECTED;
+	  notify$1(state, true);
+	};
+
+	var internalResolve = function (state, value, unwrap) {
+	  if (state.done) return;
+	  state.done = true;
+	  if (unwrap) state = unwrap;
+	  try {
+	    if (state.facade === value) throw TypeError$1("Promise can't be resolved itself");
+	    var then = isThenable(value);
+	    if (then) {
+	      microtask(function () {
+	        var wrapper = { done: false };
+	        try {
+	          then.call(value,
+	            bind(internalResolve, wrapper, state),
+	            bind(internalReject, wrapper, state)
+	          );
+	        } catch (error) {
+	          internalReject(wrapper, error, state);
+	        }
+	      });
+	    } else {
+	      state.value = value;
+	      state.state = FULFILLED;
+	      notify$1(state, false);
+	    }
+	  } catch (error) {
+	    internalReject({ done: false }, error, state);
+	  }
+	};
+
+	// constructor polyfill
+	if (FORCED$2) {
+	  // 25.4.3.1 Promise(executor)
+	  PromiseConstructor = function Promise(executor) {
+	    anInstance(this, PromiseConstructor, PROMISE);
+	    aCallable(executor);
+	    Internal.call(this);
+	    var state = getInternalState(this);
+	    try {
+	      executor(bind(internalResolve, state), bind(internalReject, state));
+	    } catch (error) {
+	      internalReject(state, error);
+	    }
+	  };
+	  PromiseConstructorPrototype = PromiseConstructor.prototype;
+	  // eslint-disable-next-line no-unused-vars -- required for `.length`
+	  Internal = function Promise(executor) {
+	    setInternalState$1(this, {
+	      type: PROMISE,
+	      done: false,
+	      notified: false,
+	      parent: false,
+	      reactions: [],
+	      rejection: false,
+	      state: PENDING,
+	      value: undefined
+	    });
+	  };
+	  Internal.prototype = redefineAll(PromiseConstructorPrototype, {
+	    // `Promise.prototype.then` method
+	    // https://tc39.es/ecma262/#sec-promise.prototype.then
+	    then: function then(onFulfilled, onRejected) {
+	      var state = getInternalPromiseState(this);
+	      var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));
+	      reaction.ok = isCallable(onFulfilled) ? onFulfilled : true;
+	      reaction.fail = isCallable(onRejected) && onRejected;
+	      reaction.domain = engineIsNode ? process.domain : undefined;
+	      state.parent = true;
+	      state.reactions.push(reaction);
+	      if (state.state != PENDING) notify$1(state, false);
+	      return reaction.promise;
+	    },
+	    // `Promise.prototype.catch` method
+	    // https://tc39.es/ecma262/#sec-promise.prototype.catch
+	    'catch': function (onRejected) {
+	      return this.then(undefined, onRejected);
+	    }
+	  });
+	  OwnPromiseCapability = function () {
+	    var promise = new Internal();
+	    var state = getInternalState(promise);
+	    this.promise = promise;
+	    this.resolve = bind(internalResolve, state);
+	    this.reject = bind(internalReject, state);
+	  };
+	  newPromiseCapability$1.f = newPromiseCapability = function (C) {
+	    return C === PromiseConstructor || C === PromiseWrapper
+	      ? new OwnPromiseCapability(C)
+	      : newGenericPromiseCapability(C);
+	  };
+
+	  if (isCallable(nativePromiseConstructor) && NativePromisePrototype !== Object.prototype) {
+	    nativeThen = NativePromisePrototype.then;
+
+	    if (!SUBCLASSING) {
+	      // make `Promise#then` return a polyfilled `Promise` for native promise-based APIs
+	      redefine(NativePromisePrototype, 'then', function then(onFulfilled, onRejected) {
+	        var that = this;
+	        return new PromiseConstructor(function (resolve, reject) {
+	          nativeThen.call(that, resolve, reject);
+	        }).then(onFulfilled, onRejected);
+	      // https://github.com/zloirock/core-js/issues/640
+	      }, { unsafe: true });
+
+	      // makes sure that native promise-based APIs `Promise#catch` properly works with patched `Promise#then`
+	      redefine(NativePromisePrototype, 'catch', PromiseConstructorPrototype['catch'], { unsafe: true });
+	    }
+
+	    // make `.constructor === Promise` work for native promise-based APIs
+	    try {
+	      delete NativePromisePrototype.constructor;
+	    } catch (error) { /* empty */ }
+
+	    // make `instanceof Promise` work for native promise-based APIs
+	    if (objectSetPrototypeOf) {
+	      objectSetPrototypeOf(NativePromisePrototype, PromiseConstructorPrototype);
+	    }
+	  }
+	}
+
+	_export({ global: true, wrap: true, forced: FORCED$2 }, {
+	  Promise: PromiseConstructor
+	});
+
+	setToStringTag(PromiseConstructor, PROMISE, false);
+	setSpecies(PROMISE);
+
+	PromiseWrapper = getBuiltIn(PROMISE);
+
+	// statics
+	_export({ target: PROMISE, stat: true, forced: FORCED$2 }, {
+	  // `Promise.reject` method
+	  // https://tc39.es/ecma262/#sec-promise.reject
+	  reject: function reject(r) {
+	    var capability = newPromiseCapability(this);
+	    capability.reject.call(undefined, r);
+	    return capability.promise;
+	  }
+	});
+
+	_export({ target: PROMISE, stat: true, forced: FORCED$2 }, {
+	  // `Promise.resolve` method
+	  // https://tc39.es/ecma262/#sec-promise.resolve
+	  resolve: function resolve(x) {
+	    return promiseResolve(this, x);
+	  }
+	});
+
+	_export({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION$1 }, {
+	  // `Promise.all` method
+	  // https://tc39.es/ecma262/#sec-promise.all
+	  all: function all(iterable) {
+	    var C = this;
+	    var capability = newPromiseCapability(C);
+	    var resolve = capability.resolve;
+	    var reject = capability.reject;
+	    var result = perform(function () {
+	      var $promiseResolve = aCallable(C.resolve);
+	      var values = [];
+	      var counter = 0;
+	      var remaining = 1;
+	      iterate(iterable, function (promise) {
+	        var index = counter++;
+	        var alreadyCalled = false;
+	        values.push(undefined);
+	        remaining++;
+	        $promiseResolve.call(C, promise).then(function (value) {
+	          if (alreadyCalled) return;
+	          alreadyCalled = true;
+	          values[index] = value;
+	          --remaining || resolve(values);
+	        }, reject);
+	      });
+	      --remaining || resolve(values);
+	    });
+	    if (result.error) reject(result.value);
+	    return capability.promise;
+	  },
+	  // `Promise.race` method
+	  // https://tc39.es/ecma262/#sec-promise.race
+	  race: function race(iterable) {
+	    var C = this;
+	    var capability = newPromiseCapability(C);
+	    var reject = capability.reject;
+	    var result = perform(function () {
+	      var $promiseResolve = aCallable(C.resolve);
+	      iterate(iterable, function (promise) {
+	        $promiseResolve.call(C, promise).then(capability.resolve, reject);
+	      });
+	    });
+	    if (result.error) reject(result.value);
+	    return capability.promise;
+	  }
+	});
+
+	createCommonjsModule(function (module) {
+	  /**
+	   * Copyright (c) 2014-present, Facebook, Inc.
+	   *
+	   * This source code is licensed under the MIT license found in the
+	   * LICENSE file in the root directory of this source tree.
+	   */
+	  var runtime = function (exports) {
+
+	    var Op = Object.prototype;
+	    var hasOwn = Op.hasOwnProperty;
+	    var undefined$1; // More compressible than void 0.
+
+	    var $Symbol = typeof Symbol === "function" ? Symbol : {};
+	    var iteratorSymbol = $Symbol.iterator || "@@iterator";
+	    var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
+	    var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
+
+	    function define(obj, key, value) {
+	      Object.defineProperty(obj, key, {
+	        value: value,
+	        enumerable: true,
+	        configurable: true,
+	        writable: true
+	      });
+	      return obj[key];
+	    }
+
+	    try {
+	      // IE 8 has a broken Object.defineProperty that only works on DOM objects.
+	      define({}, "");
+	    } catch (err) {
+	      define = function define(obj, key, value) {
+	        return obj[key] = value;
+	      };
+	    }
+
+	    function wrap(innerFn, outerFn, self, tryLocsList) {
+	      // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
+	      var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
+	      var generator = Object.create(protoGenerator.prototype);
+	      var context = new Context(tryLocsList || []); // The ._invoke method unifies the implementations of the .next,
+	      // .throw, and .return methods.
+
+	      generator._invoke = makeInvokeMethod(innerFn, self, context);
+	      return generator;
+	    }
+
+	    exports.wrap = wrap; // Try/catch helper to minimize deoptimizations. Returns a completion
+	    // record like context.tryEntries[i].completion. This interface could
+	    // have been (and was previously) designed to take a closure to be
+	    // invoked without arguments, but in all the cases we care about we
+	    // already have an existing method we want to call, so there's no need
+	    // to create a new function object. We can even get away with assuming
+	    // the method takes exactly one argument, since that happens to be true
+	    // in every case, so we don't have to touch the arguments object. The
+	    // only additional allocation required is the completion record, which
+	    // has a stable shape and so hopefully should be cheap to allocate.
+
+	    function tryCatch(fn, obj, arg) {
+	      try {
+	        return {
+	          type: "normal",
+	          arg: fn.call(obj, arg)
+	        };
+	      } catch (err) {
+	        return {
+	          type: "throw",
+	          arg: err
+	        };
+	      }
+	    }
+
+	    var GenStateSuspendedStart = "suspendedStart";
+	    var GenStateSuspendedYield = "suspendedYield";
+	    var GenStateExecuting = "executing";
+	    var GenStateCompleted = "completed"; // Returning this object from the innerFn has the same effect as
+	    // breaking out of the dispatch switch statement.
+
+	    var ContinueSentinel = {}; // Dummy constructor functions that we use as the .constructor and
+	    // .constructor.prototype properties for functions that return Generator
+	    // objects. For full spec compliance, you may wish to configure your
+	    // minifier not to mangle the names of these two functions.
+
+	    function Generator() {}
+
+	    function GeneratorFunction() {}
+
+	    function GeneratorFunctionPrototype() {} // This is a polyfill for %IteratorPrototype% for environments that
+	    // don't natively support it.
+
+
+	    var IteratorPrototype = {};
+
+	    IteratorPrototype[iteratorSymbol] = function () {
+	      return this;
+	    };
+
+	    var getProto = Object.getPrototypeOf;
+	    var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
+
+	    if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
+	      // This environment has a native %IteratorPrototype%; use it instead
+	      // of the polyfill.
+	      IteratorPrototype = NativeIteratorPrototype;
+	    }
+
+	    var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
+	    GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
+	    GeneratorFunctionPrototype.constructor = GeneratorFunction;
+	    GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction"); // Helper for defining the .next, .throw, and .return methods of the
+	    // Iterator interface in terms of a single ._invoke method.
+
+	    function defineIteratorMethods(prototype) {
+	      ["next", "throw", "return"].forEach(function (method) {
+	        define(prototype, method, function (arg) {
+	          return this._invoke(method, arg);
+	        });
+	      });
+	    }
+
+	    exports.isGeneratorFunction = function (genFun) {
+	      var ctor = typeof genFun === "function" && genFun.constructor;
+	      return ctor ? ctor === GeneratorFunction || // For the native GeneratorFunction constructor, the best we can
+	      // do is to check its .name property.
+	      (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
+	    };
+
+	    exports.mark = function (genFun) {
+	      if (Object.setPrototypeOf) {
+	        Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
+	      } else {
+	        genFun.__proto__ = GeneratorFunctionPrototype;
+	        define(genFun, toStringTagSymbol, "GeneratorFunction");
+	      }
+
+	      genFun.prototype = Object.create(Gp);
+	      return genFun;
+	    }; // Within the body of any async function, `await x` is transformed to
+	    // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
+	    // `hasOwn.call(value, "__await")` to determine if the yielded value is
+	    // meant to be awaited.
+
+
+	    exports.awrap = function (arg) {
+	      return {
+	        __await: arg
+	      };
+	    };
+
+	    function AsyncIterator(generator, PromiseImpl) {
+	      function invoke(method, arg, resolve, reject) {
+	        var record = tryCatch(generator[method], generator, arg);
+
+	        if (record.type === "throw") {
+	          reject(record.arg);
+	        } else {
+	          var result = record.arg;
+	          var value = result.value;
+
+	          if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
+	            return PromiseImpl.resolve(value.__await).then(function (value) {
+	              invoke("next", value, resolve, reject);
+	            }, function (err) {
+	              invoke("throw", err, resolve, reject);
+	            });
+	          }
+
+	          return PromiseImpl.resolve(value).then(function (unwrapped) {
+	            // When a yielded Promise is resolved, its final value becomes
+	            // the .value of the Promise<{value,done}> result for the
+	            // current iteration.
+	            result.value = unwrapped;
+	            resolve(result);
+	          }, function (error) {
+	            // If a rejected Promise was yielded, throw the rejection back
+	            // into the async generator function so it can be handled there.
+	            return invoke("throw", error, resolve, reject);
+	          });
+	        }
+	      }
+
+	      var previousPromise;
+
+	      function enqueue(method, arg) {
+	        function callInvokeWithMethodAndArg() {
+	          return new PromiseImpl(function (resolve, reject) {
+	            invoke(method, arg, resolve, reject);
+	          });
+	        }
+
+	        return previousPromise = // If enqueue has been called before, then we want to wait until
+	        // all previous Promises have been resolved before calling invoke,
+	        // so that results are always delivered in the correct order. If
+	        // enqueue has not been called before, then it is important to
+	        // call invoke immediately, without waiting on a callback to fire,
+	        // so that the async generator function has the opportunity to do
+	        // any necessary setup in a predictable way. This predictability
+	        // is why the Promise constructor synchronously invokes its
+	        // executor callback, and why async functions synchronously
+	        // execute code before the first await. Since we implement simple
+	        // async functions in terms of async generators, it is especially
+	        // important to get this right, even though it requires care.
+	        previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, // Avoid propagating failures to Promises returned by later
+	        // invocations of the iterator.
+	        callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
+	      } // Define the unified helper method that is used to implement .next,
+	      // .throw, and .return (see defineIteratorMethods).
+
+
+	      this._invoke = enqueue;
+	    }
+
+	    defineIteratorMethods(AsyncIterator.prototype);
+
+	    AsyncIterator.prototype[asyncIteratorSymbol] = function () {
+	      return this;
+	    };
+
+	    exports.AsyncIterator = AsyncIterator; // Note that simple async functions are implemented on top of
+	    // AsyncIterator objects; they just return a Promise for the value of
+	    // the final result produced by the iterator.
+
+	    exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) {
+	      if (PromiseImpl === void 0) PromiseImpl = Promise;
+	      var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
+	      return exports.isGeneratorFunction(outerFn) ? iter // If outerFn is a generator, return the full iterator.
+	      : iter.next().then(function (result) {
+	        return result.done ? result.value : iter.next();
+	      });
+	    };
+
+	    function makeInvokeMethod(innerFn, self, context) {
+	      var state = GenStateSuspendedStart;
+	      return function invoke(method, arg) {
+	        if (state === GenStateExecuting) {
+	          throw new Error("Generator is already running");
+	        }
+
+	        if (state === GenStateCompleted) {
+	          if (method === "throw") {
+	            throw arg;
+	          } // Be forgiving, per 25.3.3.3.3 of the spec:
+	          // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
+
+
+	          return doneResult();
+	        }
+
+	        context.method = method;
+	        context.arg = arg;
+
+	        while (true) {
+	          var delegate = context.delegate;
+
+	          if (delegate) {
+	            var delegateResult = maybeInvokeDelegate(delegate, context);
+
+	            if (delegateResult) {
+	              if (delegateResult === ContinueSentinel) continue;
+	              return delegateResult;
+	            }
+	          }
+
+	          if (context.method === "next") {
+	            // Setting context._sent for legacy support of Babel's
+	            // function.sent implementation.
+	            context.sent = context._sent = context.arg;
+	          } else if (context.method === "throw") {
+	            if (state === GenStateSuspendedStart) {
+	              state = GenStateCompleted;
+	              throw context.arg;
+	            }
+
+	            context.dispatchException(context.arg);
+	          } else if (context.method === "return") {
+	            context.abrupt("return", context.arg);
+	          }
+
+	          state = GenStateExecuting;
+	          var record = tryCatch(innerFn, self, context);
+
+	          if (record.type === "normal") {
+	            // If an exception is thrown from innerFn, we leave state ===
+	            // GenStateExecuting and loop back for another invocation.
+	            state = context.done ? GenStateCompleted : GenStateSuspendedYield;
+
+	            if (record.arg === ContinueSentinel) {
+	              continue;
+	            }
+
+	            return {
+	              value: record.arg,
+	              done: context.done
+	            };
+	          } else if (record.type === "throw") {
+	            state = GenStateCompleted; // Dispatch the exception by looping back around to the
+	            // context.dispatchException(context.arg) call above.
+
+	            context.method = "throw";
+	            context.arg = record.arg;
+	          }
+	        }
+	      };
+	    } // Call delegate.iterator[context.method](context.arg) and handle the
+	    // result, either by returning a { value, done } result from the
+	    // delegate iterator, or by modifying context.method and context.arg,
+	    // setting context.delegate to null, and returning the ContinueSentinel.
+
+
+	    function maybeInvokeDelegate(delegate, context) {
+	      var method = delegate.iterator[context.method];
+
+	      if (method === undefined$1) {
+	        // A .throw or .return when the delegate iterator has no .throw
+	        // method always terminates the yield* loop.
+	        context.delegate = null;
+
+	        if (context.method === "throw") {
+	          // Note: ["return"] must be used for ES3 parsing compatibility.
+	          if (delegate.iterator["return"]) {
+	            // If the delegate iterator has a return method, give it a
+	            // chance to clean up.
+	            context.method = "return";
+	            context.arg = undefined$1;
+	            maybeInvokeDelegate(delegate, context);
+
+	            if (context.method === "throw") {
+	              // If maybeInvokeDelegate(context) changed context.method from
+	              // "return" to "throw", let that override the TypeError below.
+	              return ContinueSentinel;
+	            }
+	          }
+
+	          context.method = "throw";
+	          context.arg = new TypeError("The iterator does not provide a 'throw' method");
+	        }
+
+	        return ContinueSentinel;
+	      }
+
+	      var record = tryCatch(method, delegate.iterator, context.arg);
+
+	      if (record.type === "throw") {
+	        context.method = "throw";
+	        context.arg = record.arg;
+	        context.delegate = null;
+	        return ContinueSentinel;
+	      }
+
+	      var info = record.arg;
+
+	      if (!info) {
+	        context.method = "throw";
+	        context.arg = new TypeError("iterator result is not an object");
+	        context.delegate = null;
+	        return ContinueSentinel;
+	      }
+
+	      if (info.done) {
+	        // Assign the result of the finished delegate to the temporary
+	        // variable specified by delegate.resultName (see delegateYield).
+	        context[delegate.resultName] = info.value; // Resume execution at the desired location (see delegateYield).
+
+	        context.next = delegate.nextLoc; // If context.method was "throw" but the delegate handled the
+	        // exception, let the outer generator proceed normally. If
+	        // context.method was "next", forget context.arg since it has been
+	        // "consumed" by the delegate iterator. If context.method was
+	        // "return", allow the original .return call to continue in the
+	        // outer generator.
+
+	        if (context.method !== "return") {
+	          context.method = "next";
+	          context.arg = undefined$1;
+	        }
+	      } else {
+	        // Re-yield the result returned by the delegate method.
+	        return info;
+	      } // The delegate iterator is finished, so forget it and continue with
+	      // the outer generator.
+
+
+	      context.delegate = null;
+	      return ContinueSentinel;
+	    } // Define Generator.prototype.{next,throw,return} in terms of the
+	    // unified ._invoke helper method.
+
+
+	    defineIteratorMethods(Gp);
+	    define(Gp, toStringTagSymbol, "Generator"); // A Generator should always return itself as the iterator object when the
+	    // @@iterator function is called on it. Some browsers' implementations of the
+	    // iterator prototype chain incorrectly implement this, causing the Generator
+	    // object to not be returned from this call. This ensures that doesn't happen.
+	    // See https://github.com/facebook/regenerator/issues/274 for more details.
+
+	    Gp[iteratorSymbol] = function () {
+	      return this;
+	    };
+
+	    Gp.toString = function () {
+	      return "[object Generator]";
+	    };
+
+	    function pushTryEntry(locs) {
+	      var entry = {
+	        tryLoc: locs[0]
+	      };
+
+	      if (1 in locs) {
+	        entry.catchLoc = locs[1];
+	      }
+
+	      if (2 in locs) {
+	        entry.finallyLoc = locs[2];
+	        entry.afterLoc = locs[3];
+	      }
+
+	      this.tryEntries.push(entry);
+	    }
+
+	    function resetTryEntry(entry) {
+	      var record = entry.completion || {};
+	      record.type = "normal";
+	      delete record.arg;
+	      entry.completion = record;
+	    }
+
+	    function Context(tryLocsList) {
+	      // The root entry object (effectively a try statement without a catch
+	      // or a finally block) gives us a place to store values thrown from
+	      // locations where there is no enclosing try statement.
+	      this.tryEntries = [{
+	        tryLoc: "root"
+	      }];
+	      tryLocsList.forEach(pushTryEntry, this);
+	      this.reset(true);
+	    }
+
+	    exports.keys = function (object) {
+	      var keys = [];
+
+	      for (var key in object) {
+	        keys.push(key);
+	      }
+
+	      keys.reverse(); // Rather than returning an object with a next method, we keep
+	      // things simple and return the next function itself.
+
+	      return function next() {
+	        while (keys.length) {
+	          var key = keys.pop();
+
+	          if (key in object) {
+	            next.value = key;
+	            next.done = false;
+	            return next;
+	          }
+	        } // To avoid creating an additional object, we just hang the .value
+	        // and .done properties off the next function object itself. This
+	        // also ensures that the minifier will not anonymize the function.
+
+
+	        next.done = true;
+	        return next;
+	      };
+	    };
+
+	    function values(iterable) {
+	      if (iterable) {
+	        var iteratorMethod = iterable[iteratorSymbol];
+
+	        if (iteratorMethod) {
+	          return iteratorMethod.call(iterable);
+	        }
+
+	        if (typeof iterable.next === "function") {
+	          return iterable;
+	        }
+
+	        if (!isNaN(iterable.length)) {
+	          var i = -1,
+	              next = function next() {
+	            while (++i < iterable.length) {
+	              if (hasOwn.call(iterable, i)) {
+	                next.value = iterable[i];
+	                next.done = false;
+	                return next;
+	              }
+	            }
+
+	            next.value = undefined$1;
+	            next.done = true;
+	            return next;
+	          };
+
+	          return next.next = next;
+	        }
+	      } // Return an iterator with no values.
+
+
+	      return {
+	        next: doneResult
+	      };
+	    }
+
+	    exports.values = values;
+
+	    function doneResult() {
+	      return {
+	        value: undefined$1,
+	        done: true
+	      };
+	    }
+
+	    Context.prototype = {
+	      constructor: Context,
+	      reset: function reset(skipTempReset) {
+	        this.prev = 0;
+	        this.next = 0; // Resetting context._sent for legacy support of Babel's
+	        // function.sent implementation.
+
+	        this.sent = this._sent = undefined$1;
+	        this.done = false;
+	        this.delegate = null;
+	        this.method = "next";
+	        this.arg = undefined$1;
+	        this.tryEntries.forEach(resetTryEntry);
+
+	        if (!skipTempReset) {
+	          for (var name in this) {
+	            // Not sure about the optimal order of these conditions:
+	            if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
+	              this[name] = undefined$1;
+	            }
+	          }
+	        }
+	      },
+	      stop: function stop() {
+	        this.done = true;
+	        var rootEntry = this.tryEntries[0];
+	        var rootRecord = rootEntry.completion;
+
+	        if (rootRecord.type === "throw") {
+	          throw rootRecord.arg;
+	        }
+
+	        return this.rval;
+	      },
+	      dispatchException: function dispatchException(exception) {
+	        if (this.done) {
+	          throw exception;
+	        }
+
+	        var context = this;
+
+	        function handle(loc, caught) {
+	          record.type = "throw";
+	          record.arg = exception;
+	          context.next = loc;
+
+	          if (caught) {
+	            // If the dispatched exception was caught by a catch block,
+	            // then let that catch block handle the exception normally.
+	            context.method = "next";
+	            context.arg = undefined$1;
+	          }
+
+	          return !!caught;
+	        }
+
+	        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+	          var entry = this.tryEntries[i];
+	          var record = entry.completion;
+
+	          if (entry.tryLoc === "root") {
+	            // Exception thrown outside of any try block that could handle
+	            // it, so set the completion value of the entire function to
+	            // throw the exception.
+	            return handle("end");
+	          }
+
+	          if (entry.tryLoc <= this.prev) {
+	            var hasCatch = hasOwn.call(entry, "catchLoc");
+	            var hasFinally = hasOwn.call(entry, "finallyLoc");
+
+	            if (hasCatch && hasFinally) {
+	              if (this.prev < entry.catchLoc) {
+	                return handle(entry.catchLoc, true);
+	              } else if (this.prev < entry.finallyLoc) {
+	                return handle(entry.finallyLoc);
+	              }
+	            } else if (hasCatch) {
+	              if (this.prev < entry.catchLoc) {
+	                return handle(entry.catchLoc, true);
+	              }
+	            } else if (hasFinally) {
+	              if (this.prev < entry.finallyLoc) {
+	                return handle(entry.finallyLoc);
+	              }
+	            } else {
+	              throw new Error("try statement without catch or finally");
+	            }
+	          }
+	        }
+	      },
+	      abrupt: function abrupt(type, arg) {
+	        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+	          var entry = this.tryEntries[i];
+
+	          if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
+	            var finallyEntry = entry;
+	            break;
+	          }
+	        }
+
+	        if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
+	          // Ignore the finally entry if control is not jumping to a
+	          // location outside the try/catch block.
+	          finallyEntry = null;
+	        }
+
+	        var record = finallyEntry ? finallyEntry.completion : {};
+	        record.type = type;
+	        record.arg = arg;
+
+	        if (finallyEntry) {
+	          this.method = "next";
+	          this.next = finallyEntry.finallyLoc;
+	          return ContinueSentinel;
+	        }
+
+	        return this.complete(record);
+	      },
+	      complete: function complete(record, afterLoc) {
+	        if (record.type === "throw") {
+	          throw record.arg;
+	        }
+
+	        if (record.type === "break" || record.type === "continue") {
+	          this.next = record.arg;
+	        } else if (record.type === "return") {
+	          this.rval = this.arg = record.arg;
+	          this.method = "return";
+	          this.next = "end";
+	        } else if (record.type === "normal" && afterLoc) {
+	          this.next = afterLoc;
+	        }
+
+	        return ContinueSentinel;
+	      },
+	      finish: function finish(finallyLoc) {
+	        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+	          var entry = this.tryEntries[i];
+
+	          if (entry.finallyLoc === finallyLoc) {
+	            this.complete(entry.completion, entry.afterLoc);
+	            resetTryEntry(entry);
+	            return ContinueSentinel;
+	          }
+	        }
+	      },
+	      "catch": function _catch(tryLoc) {
+	        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+	          var entry = this.tryEntries[i];
+
+	          if (entry.tryLoc === tryLoc) {
+	            var record = entry.completion;
+
+	            if (record.type === "throw") {
+	              var thrown = record.arg;
+	              resetTryEntry(entry);
+	            }
+
+	            return thrown;
+	          }
+	        } // The context.catch method must only be called with a location
+	        // argument that corresponds to a known catch block.
+
+
+	        throw new Error("illegal catch attempt");
+	      },
+	      delegateYield: function delegateYield(iterable, resultName, nextLoc) {
+	        this.delegate = {
+	          iterator: values(iterable),
+	          resultName: resultName,
+	          nextLoc: nextLoc
+	        };
+
+	        if (this.method === "next") {
+	          // Deliberately forget the last sent value so that we don't
+	          // accidentally pass it on to the delegate.
+	          this.arg = undefined$1;
+	        }
+
+	        return ContinueSentinel;
+	      }
+	    }; // Regardless of whether this script is executing as a CommonJS module
+	    // or not, return the runtime object so that we can declare the variable
+	    // regeneratorRuntime in the outer scope, which allows this module to be
+	    // injected easily by `bin/regenerator --include-runtime script.js`.
+
+	    return exports;
+	  }( // If this script is executing as a CommonJS module, use module.exports
+	  // as the regeneratorRuntime namespace. Otherwise create a new empty
+	  // object. Either way, the resulting object will be used to initialize
+	  // the regeneratorRuntime variable at the top of this file.
+	  module.exports );
+
+	  try {
+	    regeneratorRuntime = runtime;
+	  } catch (accidentalStrictMode) {
+	    // This module should not be running in strict mode, so the above
+	    // assignment should always work unless something is misconfigured. Just
+	    // in case runtime.js accidentally runs in strict mode, we can escape
+	    // strict mode using a global Function call. This could conceivably fail
+	    // if a Content Security Policy forbids using Function, but in that case
+	    // the proper solution is to fix the accidental strict mode problem. If
+	    // you've misconfigured your bundler to force strict mode and applied a
+	    // CSP to forbid Function, and you're not willing to fix either of those
+	    // problems, please detail your unique predicament in a GitHub issue.
+	    Function("r", "regeneratorRuntime = r")(runtime);
+	  }
+	});
+
+	var escapeStringRegexp = function escapeStringRegexp(string) {
+	  if (typeof string !== 'string') {
+	    throw new TypeError('Expected a string');
+	  } // Escape characters with special meaning either inside or outside character sets.
+	  // Use a simple backslash escape when it’s always valid, and a \unnnn escape when the simpler form would be disallowed by Unicode patterns’ stricter grammar.
+
+
+	  return string.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&').replace(/-/g, '\\x2d');
+	};
+
+	// Copyright Joyent, Inc. and other Node contributors.
+	//
+	// Permission is hereby granted, free of charge, to any person obtaining a
+	// copy of this software and associated documentation files (the
+	// "Software"), to deal in the Software without restriction, including
+	// without limitation the rights to use, copy, modify, merge, publish,
+	// distribute, sublicense, and/or sell copies of the Software, and to permit
+	// persons to whom the Software is furnished to do so, subject to the
+	// following conditions:
+	//
+	// The above copyright notice and this permission notice shall be included
+	// in all copies or substantial portions of the Software.
+	//
+	// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+	// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+	// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+	// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+	// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+	// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+	// USE OR OTHER DEALINGS IN THE SOFTWARE.
+	// resolves . and .. elements in a path array with directory names there
+	// must be no slashes, empty elements, or device names (c:\) in the array
+	// (so also no leading and trailing slashes - it does not distinguish
+	// relative and absolute paths)
+	function normalizeArray(parts, allowAboveRoot) {
+	  // if the path tries to go above the root, `up` ends up > 0
+	  var up = 0;
+
+	  for (var i = parts.length - 1; i >= 0; i--) {
+	    var last = parts[i];
+
+	    if (last === '.') {
+	      parts.splice(i, 1);
+	    } else if (last === '..') {
+	      parts.splice(i, 1);
+	      up++;
+	    } else if (up) {
+	      parts.splice(i, 1);
+	      up--;
+	    }
+	  } // if the path is allowed to go above the root, restore leading ..s
+
+
+	  if (allowAboveRoot) {
+	    for (; up--; up) {
+	      parts.unshift('..');
+	    }
+	  }
+
+	  return parts;
+	} // Split a filename into [root, dir, basename, ext], unix version
+	// 'root' is just a slash, or nothing.
+
+
+	var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
+
+	var splitPath = function splitPath(filename) {
+	  return splitPathRe.exec(filename).slice(1);
+	}; // path.resolve([from ...], to)
+	// posix version
+
+
+	function resolve() {
+	  var resolvedPath = '',
+	      resolvedAbsolute = false;
+
+	  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
+	    var path = i >= 0 ? arguments[i] : '/'; // Skip empty and invalid entries
+
+	    if (typeof path !== 'string') {
+	      throw new TypeError('Arguments to path.resolve must be strings');
+	    } else if (!path) {
+	      continue;
+	    }
+
+	    resolvedPath = path + '/' + resolvedPath;
+	    resolvedAbsolute = path.charAt(0) === '/';
+	  } // At this point the path should be resolved to a full absolute path, but
+	  // handle relative paths to be safe (might happen when process.cwd() fails)
+	  // Normalize the path
+
+
+	  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function (p) {
+	    return !!p;
+	  }), !resolvedAbsolute).join('/');
+	  return (resolvedAbsolute ? '/' : '') + resolvedPath || '.';
+	}
+	// posix version
+
+	function normalize(path) {
+	  var isPathAbsolute = isAbsolute(path),
+	      trailingSlash = substr(path, -1) === '/'; // Normalize the path
+
+	  path = normalizeArray(filter(path.split('/'), function (p) {
+	    return !!p;
+	  }), !isPathAbsolute).join('/');
+
+	  if (!path && !isPathAbsolute) {
+	    path = '.';
+	  }
+
+	  if (path && trailingSlash) {
+	    path += '/';
+	  }
+
+	  return (isPathAbsolute ? '/' : '') + path;
+	}
+
+	function isAbsolute(path) {
+	  return path.charAt(0) === '/';
+	} // posix version
+
+	function join() {
+	  var paths = Array.prototype.slice.call(arguments, 0);
+	  return normalize(filter(paths, function (p, index) {
+	    if (typeof p !== 'string') {
+	      throw new TypeError('Arguments to path.join must be strings');
+	    }
+
+	    return p;
+	  }).join('/'));
+	} // path.relative(from, to)
+	// posix version
+
+	function relative(from, to) {
+	  from = resolve(from).substr(1);
+	  to = resolve(to).substr(1);
+
+	  function trim(arr) {
+	    var start = 0;
+
+	    for (; start < arr.length; start++) {
+	      if (arr[start] !== '') break;
+	    }
+
+	    var end = arr.length - 1;
+
+	    for (; end >= 0; end--) {
+	      if (arr[end] !== '') break;
+	    }
+
+	    if (start > end) return [];
+	    return arr.slice(start, end - start + 1);
+	  }
+
+	  var fromParts = trim(from.split('/'));
+	  var toParts = trim(to.split('/'));
+	  var length = Math.min(fromParts.length, toParts.length);
+	  var samePartsLength = length;
+
+	  for (var i = 0; i < length; i++) {
+	    if (fromParts[i] !== toParts[i]) {
+	      samePartsLength = i;
+	      break;
+	    }
+	  }
+
+	  var outputParts = [];
+
+	  for (var i = samePartsLength; i < fromParts.length; i++) {
+	    outputParts.push('..');
+	  }
+
+	  outputParts = outputParts.concat(toParts.slice(samePartsLength));
+	  return outputParts.join('/');
+	}
+	var sep = '/';
+	var delimiter = ':';
+	function dirname(path) {
+	  var result = splitPath(path),
+	      root = result[0],
+	      dir = result[1];
+
+	  if (!root && !dir) {
+	    // No dirname whatsoever
+	    return '.';
+	  }
+
+	  if (dir) {
+	    // It has a dirname, strip trailing slash
+	    dir = dir.substr(0, dir.length - 1);
+	  }
+
+	  return root + dir;
+	}
+	function basename(path, ext) {
+	  var f = splitPath(path)[2]; // TODO: make this comparison case-insensitive on windows?
+
+	  if (ext && f.substr(-1 * ext.length) === ext) {
+	    f = f.substr(0, f.length - ext.length);
+	  }
+
+	  return f;
+	}
+	function extname(path) {
+	  return splitPath(path)[3];
+	}
+	var path = {
+	  extname: extname,
+	  basename: basename,
+	  dirname: dirname,
+	  sep: sep,
+	  delimiter: delimiter,
+	  relative: relative,
+	  join: join,
+	  isAbsolute: isAbsolute,
+	  normalize: normalize,
+	  resolve: resolve
+	};
+
+	function filter(xs, f) {
+	  if (xs.filter) return xs.filter(f);
+	  var res = [];
+
+	  for (var i = 0; i < xs.length; i++) {
+	    if (f(xs[i], i, xs)) res.push(xs[i]);
+	  }
+
+	  return res;
+	} // String.prototype.substr - negative index don't work in IE8
+
+
+	var substr = 'ab'.substr(-1) === 'b' ? function (str, start, len) {
+	  return str.substr(start, len);
+	} : function (str, start, len) {
+	  if (start < 0) start = str.length + start;
+	  return str.substr(start, len);
+	};
+
+	// call something on iterator step with safe closing on error
+	var callWithSafeIterationClosing = function (iterator, fn, value, ENTRIES) {
+	  try {
+	    return ENTRIES ? fn(anObject(value)[0], value[1]) : fn(value);
+	  } catch (error) {
+	    iteratorClose(iterator, 'throw', error);
+	  }
+	};
+
+	// `Array.from` method implementation
+	// https://tc39.es/ecma262/#sec-array.from
+	var arrayFrom = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
+	  var O = toObject(arrayLike);
+	  var IS_CONSTRUCTOR = isConstructor(this);
+	  var argumentsLength = arguments.length;
+	  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
+	  var mapping = mapfn !== undefined;
+	  if (mapping) mapfn = functionBindContext(mapfn, argumentsLength > 2 ? arguments[2] : undefined, 2);
+	  var iteratorMethod = getIteratorMethod(O);
+	  var index = 0;
+	  var length, result, step, iterator, next, value;
+	  // if the target is not iterable or it's an array with the default iterator - use a simple case
+	  if (iteratorMethod && !(this == Array && isArrayIteratorMethod(iteratorMethod))) {
+	    iterator = getIterator(O, iteratorMethod);
+	    next = iterator.next;
+	    result = IS_CONSTRUCTOR ? new this() : [];
+	    for (;!(step = next.call(iterator)).done; index++) {
+	      value = mapping ? callWithSafeIterationClosing(iterator, mapfn, [step.value, index], true) : step.value;
+	      createProperty(result, index, value);
+	    }
+	  } else {
+	    length = toLength(O.length);
+	    result = IS_CONSTRUCTOR ? new this(length) : Array(length);
+	    for (;length > index; index++) {
+	      value = mapping ? mapfn(O[index], index) : O[index];
+	      createProperty(result, index, value);
+	    }
+	  }
+	  result.length = index;
+	  return result;
+	};
+
+	var INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {
+	  // eslint-disable-next-line es/no-array-from -- required for testing
+	  Array.from(iterable);
+	});
+
+	// `Array.from` method
+	// https://tc39.es/ecma262/#sec-array.from
+	_export({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {
+	  from: arrayFrom
+	});
+
+	var test$1 = [];
+	var nativeSort = test$1.sort;
+
+	// IE8-
+	var FAILS_ON_UNDEFINED = fails(function () {
+	  test$1.sort(undefined);
+	});
+	// V8 bug
+	var FAILS_ON_NULL = fails(function () {
+	  test$1.sort(null);
+	});
+	// Old WebKit
+	var STRICT_METHOD = arrayMethodIsStrict('sort');
+
+	var STABLE_SORT = !fails(function () {
+	  // feature detection can be too slow, so check engines versions
+	  if (engineV8Version) return engineV8Version < 70;
+	  if (engineFfVersion && engineFfVersion > 3) return;
+	  if (engineIsIeOrEdge) return true;
+	  if (engineWebkitVersion) return engineWebkitVersion < 603;
+
+	  var result = '';
+	  var code, chr, value, index;
+
+	  // generate an array with more 512 elements (Chakra and old V8 fails only in this case)
+	  for (code = 65; code < 76; code++) {
+	    chr = String.fromCharCode(code);
+
+	    switch (code) {
+	      case 66: case 69: case 70: case 72: value = 3; break;
+	      case 68: case 71: value = 4; break;
+	      default: value = 2;
+	    }
+
+	    for (index = 0; index < 47; index++) {
+	      test$1.push({ k: chr + index, v: value });
+	    }
+	  }
+
+	  test$1.sort(function (a, b) { return b.v - a.v; });
+
+	  for (index = 0; index < test$1.length; index++) {
+	    chr = test$1[index].k.charAt(0);
+	    if (result.charAt(result.length - 1) !== chr) result += chr;
+	  }
+
+	  return result !== 'DGBEFHACIJK';
+	});
+
+	var FORCED$1 = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD || !STABLE_SORT;
+
+	var getSortCompare = function (comparefn) {
+	  return function (x, y) {
+	    if (y === undefined) return -1;
+	    if (x === undefined) return 1;
+	    if (comparefn !== undefined) return +comparefn(x, y) || 0;
+	    return toString_1(x) > toString_1(y) ? 1 : -1;
+	  };
+	};
+
+	// `Array.prototype.sort` method
+	// https://tc39.es/ecma262/#sec-array.prototype.sort
+	_export({ target: 'Array', proto: true, forced: FORCED$1 }, {
+	  sort: function sort(comparefn) {
+	    if (comparefn !== undefined) aCallable(comparefn);
+
+	    var array = toObject(this);
+
+	    if (STABLE_SORT) return comparefn === undefined ? nativeSort.call(array) : nativeSort.call(array, comparefn);
+
+	    var items = [];
+	    var arrayLength = toLength(array.length);
+	    var itemsLength, index;
+
+	    for (index = 0; index < arrayLength; index++) {
+	      if (index in array) items.push(array[index]);
+	    }
+
+	    items = arraySort(items, getSortCompare(comparefn));
+	    itemsLength = items.length;
+	    index = 0;
+
+	    while (index < itemsLength) array[index] = items[index++];
+	    while (index < arrayLength) delete array[index++];
+
+	    return array;
+	  }
+	});
+
+	var diff$1 = createCommonjsModule(function (module, exports) {
+	  (function (global, factory) {
+	    factory(exports) ;
+	  })(commonjsGlobal, function (exports) {
+
+	    function Diff() {}
+
+	    Diff.prototype = {
+	      diff: function diff(oldString, newString) {
+	        var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+	        var callback = options.callback;
+
+	        if (typeof options === 'function') {
+	          callback = options;
+	          options = {};
+	        }
+
+	        this.options = options;
+	        var self = this;
+
+	        function done(value) {
+	          if (callback) {
+	            setTimeout(function () {
+	              callback(undefined, value);
+	            }, 0);
+	            return true;
+	          } else {
+	            return value;
+	          }
+	        } // Allow subclasses to massage the input prior to running
+
+
+	        oldString = this.castInput(oldString);
+	        newString = this.castInput(newString);
+	        oldString = this.removeEmpty(this.tokenize(oldString));
+	        newString = this.removeEmpty(this.tokenize(newString));
+	        var newLen = newString.length,
+	            oldLen = oldString.length;
+	        var editLength = 1;
+	        var maxEditLength = newLen + oldLen;
+	        var bestPath = [{
+	          newPos: -1,
+	          components: []
+	        }]; // Seed editLength = 0, i.e. the content starts with the same values
+
+	        var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
+
+	        if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
+	          // Identity per the equality and tokenizer
+	          return done([{
+	            value: this.join(newString),
+	            count: newString.length
+	          }]);
+	        } // Main worker method. checks all permutations of a given edit length for acceptance.
+
+
+	        function execEditLength() {
+	          for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
+	            var basePath = void 0;
+
+	            var addPath = bestPath[diagonalPath - 1],
+	                removePath = bestPath[diagonalPath + 1],
+	                _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
+
+	            if (addPath) {
+	              // No one else is going to attempt to use this value, clear it
+	              bestPath[diagonalPath - 1] = undefined;
+	            }
+
+	            var canAdd = addPath && addPath.newPos + 1 < newLen,
+	                canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
+
+	            if (!canAdd && !canRemove) {
+	              // If this path is a terminal then prune
+	              bestPath[diagonalPath] = undefined;
+	              continue;
+	            } // Select the diagonal that we want to branch from. We select the prior
+	            // path whose position in the new string is the farthest from the origin
+	            // and does not pass the bounds of the diff graph
+
+
+	            if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
+	              basePath = clonePath(removePath);
+	              self.pushComponent(basePath.components, undefined, true);
+	            } else {
+	              basePath = addPath; // No need to clone, we've pulled it from the list
+
+	              basePath.newPos++;
+	              self.pushComponent(basePath.components, true, undefined);
+	            }
+
+	            _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath); // If we have hit the end of both strings, then we are done
+
+	            if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
+	              return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
+	            } else {
+	              // Otherwise track this path as a potential candidate and continue.
+	              bestPath[diagonalPath] = basePath;
+	            }
+	          }
+
+	          editLength++;
+	        } // Performs the length of edit iteration. Is a bit fugly as this has to support the
+	        // sync and async mode which is never fun. Loops over execEditLength until a value
+	        // is produced.
+
+
+	        if (callback) {
+	          (function exec() {
+	            setTimeout(function () {
+	              // This should not happen, but we want to be safe.
+
+	              /* istanbul ignore next */
+	              if (editLength > maxEditLength) {
+	                return callback();
+	              }
+
+	              if (!execEditLength()) {
+	                exec();
+	              }
+	            }, 0);
+	          })();
+	        } else {
+	          while (editLength <= maxEditLength) {
+	            var ret = execEditLength();
+
+	            if (ret) {
+	              return ret;
+	            }
+	          }
+	        }
+	      },
+	      pushComponent: function pushComponent(components, added, removed) {
+	        var last = components[components.length - 1];
+
+	        if (last && last.added === added && last.removed === removed) {
+	          // We need to clone here as the component clone operation is just
+	          // as shallow array clone
+	          components[components.length - 1] = {
+	            count: last.count + 1,
+	            added: added,
+	            removed: removed
+	          };
+	        } else {
+	          components.push({
+	            count: 1,
+	            added: added,
+	            removed: removed
+	          });
+	        }
+	      },
+	      extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
+	        var newLen = newString.length,
+	            oldLen = oldString.length,
+	            newPos = basePath.newPos,
+	            oldPos = newPos - diagonalPath,
+	            commonCount = 0;
+
+	        while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
+	          newPos++;
+	          oldPos++;
+	          commonCount++;
+	        }
+
+	        if (commonCount) {
+	          basePath.components.push({
+	            count: commonCount
+	          });
+	        }
+
+	        basePath.newPos = newPos;
+	        return oldPos;
+	      },
+	      equals: function equals(left, right) {
+	        if (this.options.comparator) {
+	          return this.options.comparator(left, right);
+	        } else {
+	          return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
+	        }
+	      },
+	      removeEmpty: function removeEmpty(array) {
+	        var ret = [];
+
+	        for (var i = 0; i < array.length; i++) {
+	          if (array[i]) {
+	            ret.push(array[i]);
+	          }
+	        }
+
+	        return ret;
+	      },
+	      castInput: function castInput(value) {
+	        return value;
+	      },
+	      tokenize: function tokenize(value) {
+	        return value.split('');
+	      },
+	      join: function join(chars) {
+	        return chars.join('');
+	      }
+	    };
+
+	    function buildValues(diff, components, newString, oldString, useLongestToken) {
+	      var componentPos = 0,
+	          componentLen = components.length,
+	          newPos = 0,
+	          oldPos = 0;
+
+	      for (; componentPos < componentLen; componentPos++) {
+	        var component = components[componentPos];
+
+	        if (!component.removed) {
+	          if (!component.added && useLongestToken) {
+	            var value = newString.slice(newPos, newPos + component.count);
+	            value = value.map(function (value, i) {
+	              var oldValue = oldString[oldPos + i];
+	              return oldValue.length > value.length ? oldValue : value;
+	            });
+	            component.value = diff.join(value);
+	          } else {
+	            component.value = diff.join(newString.slice(newPos, newPos + component.count));
+	          }
+
+	          newPos += component.count; // Common case
+
+	          if (!component.added) {
+	            oldPos += component.count;
+	          }
+	        } else {
+	          component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
+	          oldPos += component.count; // Reverse add and remove so removes are output first to match common convention
+	          // The diffing algorithm is tied to add then remove output and this is the simplest
+	          // route to get the desired output with minimal overhead.
+
+	          if (componentPos && components[componentPos - 1].added) {
+	            var tmp = components[componentPos - 1];
+	            components[componentPos - 1] = components[componentPos];
+	            components[componentPos] = tmp;
+	          }
+	        }
+	      } // Special case handle for when one terminal is ignored (i.e. whitespace).
+	      // For this case we merge the terminal into the prior string and drop the change.
+	      // This is only available for string mode.
+
+
+	      var lastComponent = components[componentLen - 1];
+
+	      if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
+	        components[componentLen - 2].value += lastComponent.value;
+	        components.pop();
+	      }
+
+	      return components;
+	    }
+
+	    function clonePath(path) {
+	      return {
+	        newPos: path.newPos,
+	        components: path.components.slice(0)
+	      };
+	    }
+
+	    var characterDiff = new Diff();
+
+	    function diffChars(oldStr, newStr, options) {
+	      return characterDiff.diff(oldStr, newStr, options);
+	    }
+
+	    function generateOptions(options, defaults) {
+	      if (typeof options === 'function') {
+	        defaults.callback = options;
+	      } else if (options) {
+	        for (var name in options) {
+	          /* istanbul ignore else */
+	          if (options.hasOwnProperty(name)) {
+	            defaults[name] = options[name];
+	          }
+	        }
+	      }
+
+	      return defaults;
+	    } //
+	    // Ranges and exceptions:
+	    // Latin-1 Supplement, 0080–00FF
+	    //  - U+00D7  × Multiplication sign
+	    //  - U+00F7  ÷ Division sign
+	    // Latin Extended-A, 0100–017F
+	    // Latin Extended-B, 0180–024F
+	    // IPA Extensions, 0250–02AF
+	    // Spacing Modifier Letters, 02B0–02FF
+	    //  - U+02C7  ˇ &#711;  Caron
+	    //  - U+02D8  ˘ &#728;  Breve
+	    //  - U+02D9  ˙ &#729;  Dot Above
+	    //  - U+02DA  ˚ &#730;  Ring Above
+	    //  - U+02DB  ˛ &#731;  Ogonek
+	    //  - U+02DC  ˜ &#732;  Small Tilde
+	    //  - U+02DD  ˝ &#733;  Double Acute Accent
+	    // Latin Extended Additional, 1E00–1EFF
+
+
+	    var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
+	    var reWhitespace = /\S/;
+	    var wordDiff = new Diff();
+
+	    wordDiff.equals = function (left, right) {
+	      if (this.options.ignoreCase) {
+	        left = left.toLowerCase();
+	        right = right.toLowerCase();
+	      }
+
+	      return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
+	    };
+
+	    wordDiff.tokenize = function (value) {
+	      // All whitespace symbols except newline group into one token, each newline - in separate token
+	      var tokens = value.split(/([^\S\r\n]+|[()[\]{}'"\r\n]|\b)/); // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
+
+	      for (var i = 0; i < tokens.length - 1; i++) {
+	        // If we have an empty string in the next field and we have only word chars before and after, merge
+	        if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
+	          tokens[i] += tokens[i + 2];
+	          tokens.splice(i + 1, 2);
+	          i--;
+	        }
+	      }
+
+	      return tokens;
+	    };
+
+	    function diffWords(oldStr, newStr, options) {
+	      options = generateOptions(options, {
+	        ignoreWhitespace: true
+	      });
+	      return wordDiff.diff(oldStr, newStr, options);
+	    }
+
+	    function diffWordsWithSpace(oldStr, newStr, options) {
+	      return wordDiff.diff(oldStr, newStr, options);
+	    }
+
+	    var lineDiff = new Diff();
+
+	    lineDiff.tokenize = function (value) {
+	      var retLines = [],
+	          linesAndNewlines = value.split(/(\n|\r\n)/); // Ignore the final empty token that occurs if the string ends with a new line
+
+	      if (!linesAndNewlines[linesAndNewlines.length - 1]) {
+	        linesAndNewlines.pop();
+	      } // Merge the content and line separators into single tokens
+
+
+	      for (var i = 0; i < linesAndNewlines.length; i++) {
+	        var line = linesAndNewlines[i];
+
+	        if (i % 2 && !this.options.newlineIsToken) {
+	          retLines[retLines.length - 1] += line;
+	        } else {
+	          if (this.options.ignoreWhitespace) {
+	            line = line.trim();
+	          }
+
+	          retLines.push(line);
+	        }
+	      }
+
+	      return retLines;
+	    };
+
+	    function diffLines(oldStr, newStr, callback) {
+	      return lineDiff.diff(oldStr, newStr, callback);
+	    }
+
+	    function diffTrimmedLines(oldStr, newStr, callback) {
+	      var options = generateOptions(callback, {
+	        ignoreWhitespace: true
+	      });
+	      return lineDiff.diff(oldStr, newStr, options);
+	    }
+
+	    var sentenceDiff = new Diff();
+
+	    sentenceDiff.tokenize = function (value) {
+	      return value.split(/(\S.+?[.!?])(?=\s+|$)/);
+	    };
+
+	    function diffSentences(oldStr, newStr, callback) {
+	      return sentenceDiff.diff(oldStr, newStr, callback);
+	    }
+
+	    var cssDiff = new Diff();
+
+	    cssDiff.tokenize = function (value) {
+	      return value.split(/([{}:;,]|\s+)/);
+	    };
+
+	    function diffCss(oldStr, newStr, callback) {
+	      return cssDiff.diff(oldStr, newStr, callback);
+	    }
+
+	    function _typeof(obj) {
+	      "@babel/helpers - typeof";
+
+	      if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+	        _typeof = function _typeof(obj) {
+	          return typeof obj;
+	        };
+	      } else {
+	        _typeof = function _typeof(obj) {
+	          return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+	        };
+	      }
+
+	      return _typeof(obj);
+	    }
+
+	    function _toConsumableArray(arr) {
+	      return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
+	    }
+
+	    function _arrayWithoutHoles(arr) {
+	      if (Array.isArray(arr)) return _arrayLikeToArray(arr);
+	    }
+
+	    function _iterableToArray(iter) {
+	      if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
+	    }
+
+	    function _unsupportedIterableToArray(o, minLen) {
+	      if (!o) return;
+	      if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+	      var n = Object.prototype.toString.call(o).slice(8, -1);
+	      if (n === "Object" && o.constructor) n = o.constructor.name;
+	      if (n === "Map" || n === "Set") return Array.from(o);
+	      if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
+	    }
+
+	    function _arrayLikeToArray(arr, len) {
+	      if (len == null || len > arr.length) len = arr.length;
+
+	      for (var i = 0, arr2 = new Array(len); i < len; i++) {
+	        arr2[i] = arr[i];
+	      }
+
+	      return arr2;
+	    }
+
+	    function _nonIterableSpread() {
+	      throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+	    }
+
+	    var objectPrototypeToString = Object.prototype.toString;
+	    var jsonDiff = new Diff(); // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
+	    // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
+
+	    jsonDiff.useLongestToken = true;
+	    jsonDiff.tokenize = lineDiff.tokenize;
+
+	    jsonDiff.castInput = function (value) {
+	      var _this$options = this.options,
+	          undefinedReplacement = _this$options.undefinedReplacement,
+	          _this$options$stringi = _this$options.stringifyReplacer,
+	          stringifyReplacer = _this$options$stringi === void 0 ? function (k, v) {
+	        return typeof v === 'undefined' ? undefinedReplacement : v;
+	      } : _this$options$stringi;
+	      return typeof value === 'string' ? value : JSON.stringify(canonicalize(value, null, null, stringifyReplacer), stringifyReplacer, '  ');
+	    };
+
+	    jsonDiff.equals = function (left, right) {
+	      return Diff.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
+	    };
+
+	    function diffJson(oldObj, newObj, options) {
+	      return jsonDiff.diff(oldObj, newObj, options);
+	    } // This function handles the presence of circular references by bailing out when encountering an
+	    // object that is already on the "stack" of items being processed. Accepts an optional replacer
+
+
+	    function canonicalize(obj, stack, replacementStack, replacer, key) {
+	      stack = stack || [];
+	      replacementStack = replacementStack || [];
+
+	      if (replacer) {
+	        obj = replacer(key, obj);
+	      }
+
+	      var i;
+
+	      for (i = 0; i < stack.length; i += 1) {
+	        if (stack[i] === obj) {
+	          return replacementStack[i];
+	        }
+	      }
+
+	      var canonicalizedObj;
+
+	      if ('[object Array]' === objectPrototypeToString.call(obj)) {
+	        stack.push(obj);
+	        canonicalizedObj = new Array(obj.length);
+	        replacementStack.push(canonicalizedObj);
+
+	        for (i = 0; i < obj.length; i += 1) {
+	          canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack, replacer, key);
+	        }
+
+	        stack.pop();
+	        replacementStack.pop();
+	        return canonicalizedObj;
+	      }
+
+	      if (obj && obj.toJSON) {
+	        obj = obj.toJSON();
+	      }
+
+	      if (_typeof(obj) === 'object' && obj !== null) {
+	        stack.push(obj);
+	        canonicalizedObj = {};
+	        replacementStack.push(canonicalizedObj);
+
+	        var sortedKeys = [],
+	            _key;
+
+	        for (_key in obj) {
+	          /* istanbul ignore else */
+	          if (obj.hasOwnProperty(_key)) {
+	            sortedKeys.push(_key);
+	          }
+	        }
+
+	        sortedKeys.sort();
+
+	        for (i = 0; i < sortedKeys.length; i += 1) {
+	          _key = sortedKeys[i];
+	          canonicalizedObj[_key] = canonicalize(obj[_key], stack, replacementStack, replacer, _key);
+	        }
+
+	        stack.pop();
+	        replacementStack.pop();
+	      } else {
+	        canonicalizedObj = obj;
+	      }
+
+	      return canonicalizedObj;
+	    }
+
+	    var arrayDiff = new Diff();
+
+	    arrayDiff.tokenize = function (value) {
+	      return value.slice();
+	    };
+
+	    arrayDiff.join = arrayDiff.removeEmpty = function (value) {
+	      return value;
+	    };
+
+	    function diffArrays(oldArr, newArr, callback) {
+	      return arrayDiff.diff(oldArr, newArr, callback);
+	    }
+
+	    function parsePatch(uniDiff) {
+	      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+	      var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
+	          delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
+	          list = [],
+	          i = 0;
+
+	      function parseIndex() {
+	        var index = {};
+	        list.push(index); // Parse diff metadata
+
+	        while (i < diffstr.length) {
+	          var line = diffstr[i]; // File header found, end parsing diff metadata
+
+	          if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
+	            break;
+	          } // Diff index
+
+
+	          var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
+
+	          if (header) {
+	            index.index = header[1];
+	          }
+
+	          i++;
+	        } // Parse file headers if they are defined. Unified diff requires them, but
+	        // there's no technical issues to have an isolated hunk without file header
+
+
+	        parseFileHeader(index);
+	        parseFileHeader(index); // Parse hunks
+
+	        index.hunks = [];
+
+	        while (i < diffstr.length) {
+	          var _line = diffstr[i];
+
+	          if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
+	            break;
+	          } else if (/^@@/.test(_line)) {
+	            index.hunks.push(parseHunk());
+	          } else if (_line && options.strict) {
+	            // Ignore unexpected content unless in strict mode
+	            throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
+	          } else {
+	            i++;
+	          }
+	        }
+	      } // Parses the --- and +++ headers, if none are found, no lines
+	      // are consumed.
+
+
+	      function parseFileHeader(index) {
+	        var fileHeader = /^(---|\+\+\+)\s+(.*)$/.exec(diffstr[i]);
+
+	        if (fileHeader) {
+	          var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
+	          var data = fileHeader[2].split('\t', 2);
+	          var fileName = data[0].replace(/\\\\/g, '\\');
+
+	          if (/^".*"$/.test(fileName)) {
+	            fileName = fileName.substr(1, fileName.length - 2);
+	          }
+
+	          index[keyPrefix + 'FileName'] = fileName;
+	          index[keyPrefix + 'Header'] = (data[1] || '').trim();
+	          i++;
+	        }
+	      } // Parses a hunk
+	      // This assumes that we are at the start of a hunk.
+
+
+	      function parseHunk() {
+	        var chunkHeaderIndex = i,
+	            chunkHeaderLine = diffstr[i++],
+	            chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
+	        var hunk = {
+	          oldStart: +chunkHeader[1],
+	          oldLines: typeof chunkHeader[2] === 'undefined' ? 1 : +chunkHeader[2],
+	          newStart: +chunkHeader[3],
+	          newLines: typeof chunkHeader[4] === 'undefined' ? 1 : +chunkHeader[4],
+	          lines: [],
+	          linedelimiters: []
+	        }; // Unified Diff Format quirk: If the chunk size is 0,
+	        // the first number is one lower than one would expect.
+	        // https://www.artima.com/weblogs/viewpost.jsp?thread=164293
+
+	        if (hunk.oldLines === 0) {
+	          hunk.oldStart += 1;
+	        }
+
+	        if (hunk.newLines === 0) {
+	          hunk.newStart += 1;
+	        }
+
+	        var addCount = 0,
+	            removeCount = 0;
+
+	        for (; i < diffstr.length; i++) {
+	          // Lines starting with '---' could be mistaken for the "remove line" operation
+	          // But they could be the header for the next file. Therefore prune such cases out.
+	          if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
+	            break;
+	          }
+
+	          var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];
+
+	          if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
+	            hunk.lines.push(diffstr[i]);
+	            hunk.linedelimiters.push(delimiters[i] || '\n');
+
+	            if (operation === '+') {
+	              addCount++;
+	            } else if (operation === '-') {
+	              removeCount++;
+	            } else if (operation === ' ') {
+	              addCount++;
+	              removeCount++;
+	            }
+	          } else {
+	            break;
+	          }
+	        } // Handle the empty block count case
+
+
+	        if (!addCount && hunk.newLines === 1) {
+	          hunk.newLines = 0;
+	        }
+
+	        if (!removeCount && hunk.oldLines === 1) {
+	          hunk.oldLines = 0;
+	        } // Perform optional sanity checking
+
+
+	        if (options.strict) {
+	          if (addCount !== hunk.newLines) {
+	            throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
+	          }
+
+	          if (removeCount !== hunk.oldLines) {
+	            throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
+	          }
+	        }
+
+	        return hunk;
+	      }
+
+	      while (i < diffstr.length) {
+	        parseIndex();
+	      }
+
+	      return list;
+	    } // Iterator that traverses in the range of [min, max], stepping
+	    // by distance from a given start position. I.e. for [0, 4], with
+	    // start of 2, this will iterate 2, 3, 1, 4, 0.
+
+
+	    function distanceIterator(start, minLine, maxLine) {
+	      var wantForward = true,
+	          backwardExhausted = false,
+	          forwardExhausted = false,
+	          localOffset = 1;
+	      return function iterator() {
+	        if (wantForward && !forwardExhausted) {
+	          if (backwardExhausted) {
+	            localOffset++;
+	          } else {
+	            wantForward = false;
+	          } // Check if trying to fit beyond text length, and if not, check it fits
+	          // after offset location (or desired location on first iteration)
+
+
+	          if (start + localOffset <= maxLine) {
+	            return localOffset;
+	          }
+
+	          forwardExhausted = true;
+	        }
+
+	        if (!backwardExhausted) {
+	          if (!forwardExhausted) {
+	            wantForward = true;
+	          } // Check if trying to fit before text beginning, and if not, check it fits
+	          // before offset location
+
+
+	          if (minLine <= start - localOffset) {
+	            return -localOffset++;
+	          }
+
+	          backwardExhausted = true;
+	          return iterator();
+	        } // We tried to fit hunk before text beginning and beyond text length, then
+	        // hunk can't fit on the text. Return undefined
+
+	      };
+	    }
+
+	    function applyPatch(source, uniDiff) {
+	      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+	      if (typeof uniDiff === 'string') {
+	        uniDiff = parsePatch(uniDiff);
+	      }
+
+	      if (Array.isArray(uniDiff)) {
+	        if (uniDiff.length > 1) {
+	          throw new Error('applyPatch only works with a single input.');
+	        }
+
+	        uniDiff = uniDiff[0];
+	      } // Apply the diff to the input
+
+
+	      var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
+	          delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
+	          hunks = uniDiff.hunks,
+	          compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) {
+	        return line === patchContent;
+	      },
+	          errorCount = 0,
+	          fuzzFactor = options.fuzzFactor || 0,
+	          minLine = 0,
+	          offset = 0,
+	          removeEOFNL,
+	          addEOFNL;
+	      /**
+	       * Checks if the hunk exactly fits on the provided location
+	       */
+
+
+	      function hunkFits(hunk, toPos) {
+	        for (var j = 0; j < hunk.lines.length; j++) {
+	          var line = hunk.lines[j],
+	              operation = line.length > 0 ? line[0] : ' ',
+	              content = line.length > 0 ? line.substr(1) : line;
+
+	          if (operation === ' ' || operation === '-') {
+	            // Context sanity check
+	            if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
+	              errorCount++;
+
+	              if (errorCount > fuzzFactor) {
+	                return false;
+	              }
+	            }
+
+	            toPos++;
+	          }
+	        }
+
+	        return true;
+	      } // Search best fit offsets for each hunk based on the previous ones
+
+
+	      for (var i = 0; i < hunks.length; i++) {
+	        var hunk = hunks[i],
+	            maxLine = lines.length - hunk.oldLines,
+	            localOffset = 0,
+	            toPos = offset + hunk.oldStart - 1;
+	        var iterator = distanceIterator(toPos, minLine, maxLine);
+
+	        for (; localOffset !== undefined; localOffset = iterator()) {
+	          if (hunkFits(hunk, toPos + localOffset)) {
+	            hunk.offset = offset += localOffset;
+	            break;
+	          }
+	        }
+
+	        if (localOffset === undefined) {
+	          return false;
+	        } // Set lower text limit to end of the current hunk, so next ones don't try
+	        // to fit over already patched text
+
+
+	        minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
+	      } // Apply patch hunks
+
+
+	      var diffOffset = 0;
+
+	      for (var _i = 0; _i < hunks.length; _i++) {
+	        var _hunk = hunks[_i],
+	            _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;
+
+	        diffOffset += _hunk.newLines - _hunk.oldLines;
+
+	        for (var j = 0; j < _hunk.lines.length; j++) {
+	          var line = _hunk.lines[j],
+	              operation = line.length > 0 ? line[0] : ' ',
+	              content = line.length > 0 ? line.substr(1) : line,
+	              delimiter = _hunk.linedelimiters[j];
+
+	          if (operation === ' ') {
+	            _toPos++;
+	          } else if (operation === '-') {
+	            lines.splice(_toPos, 1);
+	            delimiters.splice(_toPos, 1);
+	            /* istanbul ignore else */
+	          } else if (operation === '+') {
+	            lines.splice(_toPos, 0, content);
+	            delimiters.splice(_toPos, 0, delimiter);
+	            _toPos++;
+	          } else if (operation === '\\') {
+	            var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;
+
+	            if (previousOperation === '+') {
+	              removeEOFNL = true;
+	            } else if (previousOperation === '-') {
+	              addEOFNL = true;
+	            }
+	          }
+	        }
+	      } // Handle EOFNL insertion/removal
+
+
+	      if (removeEOFNL) {
+	        while (!lines[lines.length - 1]) {
+	          lines.pop();
+	          delimiters.pop();
+	        }
+	      } else if (addEOFNL) {
+	        lines.push('');
+	        delimiters.push('\n');
+	      }
+
+	      for (var _k = 0; _k < lines.length - 1; _k++) {
+	        lines[_k] = lines[_k] + delimiters[_k];
+	      }
+
+	      return lines.join('');
+	    } // Wrapper that supports multiple file patches via callbacks.
+
+
+	    function applyPatches(uniDiff, options) {
+	      if (typeof uniDiff === 'string') {
+	        uniDiff = parsePatch(uniDiff);
+	      }
+
+	      var currentIndex = 0;
+
+	      function processIndex() {
+	        var index = uniDiff[currentIndex++];
+
+	        if (!index) {
+	          return options.complete();
+	        }
+
+	        options.loadFile(index, function (err, data) {
+	          if (err) {
+	            return options.complete(err);
+	          }
+
+	          var updatedContent = applyPatch(data, index, options);
+	          options.patched(index, updatedContent, function (err) {
+	            if (err) {
+	              return options.complete(err);
+	            }
+
+	            processIndex();
+	          });
+	        });
+	      }
+
+	      processIndex();
+	    }
+
+	    function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
+	      if (!options) {
+	        options = {};
+	      }
+
+	      if (typeof options.context === 'undefined') {
+	        options.context = 4;
+	      }
+
+	      var diff = diffLines(oldStr, newStr, options);
+	      diff.push({
+	        value: '',
+	        lines: []
+	      }); // Append an empty value to make cleanup easier
+
+	      function contextLines(lines) {
+	        return lines.map(function (entry) {
+	          return ' ' + entry;
+	        });
+	      }
+
+	      var hunks = [];
+	      var oldRangeStart = 0,
+	          newRangeStart = 0,
+	          curRange = [],
+	          oldLine = 1,
+	          newLine = 1;
+
+	      var _loop = function _loop(i) {
+	        var current = diff[i],
+	            lines = current.lines || current.value.replace(/\n$/, '').split('\n');
+	        current.lines = lines;
+
+	        if (current.added || current.removed) {
+	          var _curRange; // If we have previous context, start with that
+
+
+	          if (!oldRangeStart) {
+	            var prev = diff[i - 1];
+	            oldRangeStart = oldLine;
+	            newRangeStart = newLine;
+
+	            if (prev) {
+	              curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
+	              oldRangeStart -= curRange.length;
+	              newRangeStart -= curRange.length;
+	            }
+	          } // Output our changes
+
+
+	          (_curRange = curRange).push.apply(_curRange, _toConsumableArray(lines.map(function (entry) {
+	            return (current.added ? '+' : '-') + entry;
+	          }))); // Track the updated file position
+
+
+	          if (current.added) {
+	            newLine += lines.length;
+	          } else {
+	            oldLine += lines.length;
+	          }
+	        } else {
+	          // Identical context lines. Track line changes
+	          if (oldRangeStart) {
+	            // Close out any changes that have been output (or join overlapping)
+	            if (lines.length <= options.context * 2 && i < diff.length - 2) {
+	              var _curRange2; // Overlapping
+
+
+	              (_curRange2 = curRange).push.apply(_curRange2, _toConsumableArray(contextLines(lines)));
+	            } else {
+	              var _curRange3; // end the range and output
+
+
+	              var contextSize = Math.min(lines.length, options.context);
+
+	              (_curRange3 = curRange).push.apply(_curRange3, _toConsumableArray(contextLines(lines.slice(0, contextSize))));
+
+	              var hunk = {
+	                oldStart: oldRangeStart,
+	                oldLines: oldLine - oldRangeStart + contextSize,
+	                newStart: newRangeStart,
+	                newLines: newLine - newRangeStart + contextSize,
+	                lines: curRange
+	              };
+
+	              if (i >= diff.length - 2 && lines.length <= options.context) {
+	                // EOF is inside this hunk
+	                var oldEOFNewline = /\n$/.test(oldStr);
+	                var newEOFNewline = /\n$/.test(newStr);
+	                var noNlBeforeAdds = lines.length == 0 && curRange.length > hunk.oldLines;
+
+	                if (!oldEOFNewline && noNlBeforeAdds && oldStr.length > 0) {
+	                  // special case: old has no eol and no trailing context; no-nl can end up before adds
+	                  // however, if the old file is empty, do not output the no-nl line
+	                  curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
+	                }
+
+	                if (!oldEOFNewline && !noNlBeforeAdds || !newEOFNewline) {
+	                  curRange.push('\\ No newline at end of file');
+	                }
+	              }
+
+	              hunks.push(hunk);
+	              oldRangeStart = 0;
+	              newRangeStart = 0;
+	              curRange = [];
+	            }
+	          }
+
+	          oldLine += lines.length;
+	          newLine += lines.length;
+	        }
+	      };
+
+	      for (var i = 0; i < diff.length; i++) {
+	        _loop(i);
+	      }
+
+	      return {
+	        oldFileName: oldFileName,
+	        newFileName: newFileName,
+	        oldHeader: oldHeader,
+	        newHeader: newHeader,
+	        hunks: hunks
+	      };
+	    }
+
+	    function formatPatch(diff) {
+	      var ret = [];
+
+	      if (diff.oldFileName == diff.newFileName) {
+	        ret.push('Index: ' + diff.oldFileName);
+	      }
+
+	      ret.push('===================================================================');
+	      ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
+	      ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
+
+	      for (var i = 0; i < diff.hunks.length; i++) {
+	        var hunk = diff.hunks[i]; // Unified Diff Format quirk: If the chunk size is 0,
+	        // the first number is one lower than one would expect.
+	        // https://www.artima.com/weblogs/viewpost.jsp?thread=164293
+
+	        if (hunk.oldLines === 0) {
+	          hunk.oldStart -= 1;
+	        }
+
+	        if (hunk.newLines === 0) {
+	          hunk.newStart -= 1;
+	        }
+
+	        ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
+	        ret.push.apply(ret, hunk.lines);
+	      }
+
+	      return ret.join('\n') + '\n';
+	    }
+
+	    function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
+	      return formatPatch(structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options));
+	    }
+
+	    function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
+	      return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
+	    }
+
+	    function arrayEqual(a, b) {
+	      if (a.length !== b.length) {
+	        return false;
+	      }
+
+	      return arrayStartsWith(a, b);
+	    }
+
+	    function arrayStartsWith(array, start) {
+	      if (start.length > array.length) {
+	        return false;
+	      }
+
+	      for (var i = 0; i < start.length; i++) {
+	        if (start[i] !== array[i]) {
+	          return false;
+	        }
+	      }
+
+	      return true;
+	    }
+
+	    function calcLineCount(hunk) {
+	      var _calcOldNewLineCount = calcOldNewLineCount(hunk.lines),
+	          oldLines = _calcOldNewLineCount.oldLines,
+	          newLines = _calcOldNewLineCount.newLines;
+
+	      if (oldLines !== undefined) {
+	        hunk.oldLines = oldLines;
+	      } else {
+	        delete hunk.oldLines;
+	      }
+
+	      if (newLines !== undefined) {
+	        hunk.newLines = newLines;
+	      } else {
+	        delete hunk.newLines;
+	      }
+	    }
+
+	    function merge(mine, theirs, base) {
+	      mine = loadPatch(mine, base);
+	      theirs = loadPatch(theirs, base);
+	      var ret = {}; // For index we just let it pass through as it doesn't have any necessary meaning.
+	      // Leaving sanity checks on this to the API consumer that may know more about the
+	      // meaning in their own context.
+
+	      if (mine.index || theirs.index) {
+	        ret.index = mine.index || theirs.index;
+	      }
+
+	      if (mine.newFileName || theirs.newFileName) {
+	        if (!fileNameChanged(mine)) {
+	          // No header or no change in ours, use theirs (and ours if theirs does not exist)
+	          ret.oldFileName = theirs.oldFileName || mine.oldFileName;
+	          ret.newFileName = theirs.newFileName || mine.newFileName;
+	          ret.oldHeader = theirs.oldHeader || mine.oldHeader;
+	          ret.newHeader = theirs.newHeader || mine.newHeader;
+	        } else if (!fileNameChanged(theirs)) {
+	          // No header or no change in theirs, use ours
+	          ret.oldFileName = mine.oldFileName;
+	          ret.newFileName = mine.newFileName;
+	          ret.oldHeader = mine.oldHeader;
+	          ret.newHeader = mine.newHeader;
+	        } else {
+	          // Both changed... figure it out
+	          ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
+	          ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
+	          ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
+	          ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
+	        }
+	      }
+
+	      ret.hunks = [];
+	      var mineIndex = 0,
+	          theirsIndex = 0,
+	          mineOffset = 0,
+	          theirsOffset = 0;
+
+	      while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
+	        var mineCurrent = mine.hunks[mineIndex] || {
+	          oldStart: Infinity
+	        },
+	            theirsCurrent = theirs.hunks[theirsIndex] || {
+	          oldStart: Infinity
+	        };
+
+	        if (hunkBefore(mineCurrent, theirsCurrent)) {
+	          // This patch does not overlap with any of the others, yay.
+	          ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
+	          mineIndex++;
+	          theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
+	        } else if (hunkBefore(theirsCurrent, mineCurrent)) {
+	          // This patch does not overlap with any of the others, yay.
+	          ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
+	          theirsIndex++;
+	          mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
+	        } else {
+	          // Overlap, merge as best we can
+	          var mergedHunk = {
+	            oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
+	            oldLines: 0,
+	            newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
+	            newLines: 0,
+	            lines: []
+	          };
+	          mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
+	          theirsIndex++;
+	          mineIndex++;
+	          ret.hunks.push(mergedHunk);
+	        }
+	      }
+
+	      return ret;
+	    }
+
+	    function loadPatch(param, base) {
+	      if (typeof param === 'string') {
+	        if (/^@@/m.test(param) || /^Index:/m.test(param)) {
+	          return parsePatch(param)[0];
+	        }
+
+	        if (!base) {
+	          throw new Error('Must provide a base reference or pass in a patch');
+	        }
+
+	        return structuredPatch(undefined, undefined, base, param);
+	      }
+
+	      return param;
+	    }
+
+	    function fileNameChanged(patch) {
+	      return patch.newFileName && patch.newFileName !== patch.oldFileName;
+	    }
+
+	    function selectField(index, mine, theirs) {
+	      if (mine === theirs) {
+	        return mine;
+	      } else {
+	        index.conflict = true;
+	        return {
+	          mine: mine,
+	          theirs: theirs
+	        };
+	      }
+	    }
+
+	    function hunkBefore(test, check) {
+	      return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
+	    }
+
+	    function cloneHunk(hunk, offset) {
+	      return {
+	        oldStart: hunk.oldStart,
+	        oldLines: hunk.oldLines,
+	        newStart: hunk.newStart + offset,
+	        newLines: hunk.newLines,
+	        lines: hunk.lines
+	      };
+	    }
+
+	    function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
+	      // This will generally result in a conflicted hunk, but there are cases where the context
+	      // is the only overlap where we can successfully merge the content here.
+	      var mine = {
+	        offset: mineOffset,
+	        lines: mineLines,
+	        index: 0
+	      },
+	          their = {
+	        offset: theirOffset,
+	        lines: theirLines,
+	        index: 0
+	      }; // Handle any leading content
+
+	      insertLeading(hunk, mine, their);
+	      insertLeading(hunk, their, mine); // Now in the overlap content. Scan through and select the best changes from each.
+
+	      while (mine.index < mine.lines.length && their.index < their.lines.length) {
+	        var mineCurrent = mine.lines[mine.index],
+	            theirCurrent = their.lines[their.index];
+
+	        if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
+	          // Both modified ...
+	          mutualChange(hunk, mine, their);
+	        } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
+	          var _hunk$lines; // Mine inserted
+
+
+	          (_hunk$lines = hunk.lines).push.apply(_hunk$lines, _toConsumableArray(collectChange(mine)));
+	        } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
+	          var _hunk$lines2; // Theirs inserted
+
+
+	          (_hunk$lines2 = hunk.lines).push.apply(_hunk$lines2, _toConsumableArray(collectChange(their)));
+	        } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
+	          // Mine removed or edited
+	          removal(hunk, mine, their);
+	        } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
+	          // Their removed or edited
+	          removal(hunk, their, mine, true);
+	        } else if (mineCurrent === theirCurrent) {
+	          // Context identity
+	          hunk.lines.push(mineCurrent);
+	          mine.index++;
+	          their.index++;
+	        } else {
+	          // Context mismatch
+	          conflict(hunk, collectChange(mine), collectChange(their));
+	        }
+	      } // Now push anything that may be remaining
+
+
+	      insertTrailing(hunk, mine);
+	      insertTrailing(hunk, their);
+	      calcLineCount(hunk);
+	    }
+
+	    function mutualChange(hunk, mine, their) {
+	      var myChanges = collectChange(mine),
+	          theirChanges = collectChange(their);
+
+	      if (allRemoves(myChanges) && allRemoves(theirChanges)) {
+	        // Special case for remove changes that are supersets of one another
+	        if (arrayStartsWith(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
+	          var _hunk$lines3;
+
+	          (_hunk$lines3 = hunk.lines).push.apply(_hunk$lines3, _toConsumableArray(myChanges));
+
+	          return;
+	        } else if (arrayStartsWith(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
+	          var _hunk$lines4;
+
+	          (_hunk$lines4 = hunk.lines).push.apply(_hunk$lines4, _toConsumableArray(theirChanges));
+
+	          return;
+	        }
+	      } else if (arrayEqual(myChanges, theirChanges)) {
+	        var _hunk$lines5;
+
+	        (_hunk$lines5 = hunk.lines).push.apply(_hunk$lines5, _toConsumableArray(myChanges));
+
+	        return;
+	      }
+
+	      conflict(hunk, myChanges, theirChanges);
+	    }
+
+	    function removal(hunk, mine, their, swap) {
+	      var myChanges = collectChange(mine),
+	          theirChanges = collectContext(their, myChanges);
+
+	      if (theirChanges.merged) {
+	        var _hunk$lines6;
+
+	        (_hunk$lines6 = hunk.lines).push.apply(_hunk$lines6, _toConsumableArray(theirChanges.merged));
+	      } else {
+	        conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
+	      }
+	    }
+
+	    function conflict(hunk, mine, their) {
+	      hunk.conflict = true;
+	      hunk.lines.push({
+	        conflict: true,
+	        mine: mine,
+	        theirs: their
+	      });
+	    }
+
+	    function insertLeading(hunk, insert, their) {
+	      while (insert.offset < their.offset && insert.index < insert.lines.length) {
+	        var line = insert.lines[insert.index++];
+	        hunk.lines.push(line);
+	        insert.offset++;
+	      }
+	    }
+
+	    function insertTrailing(hunk, insert) {
+	      while (insert.index < insert.lines.length) {
+	        var line = insert.lines[insert.index++];
+	        hunk.lines.push(line);
+	      }
+	    }
+
+	    function collectChange(state) {
+	      var ret = [],
+	          operation = state.lines[state.index][0];
+
+	      while (state.index < state.lines.length) {
+	        var line = state.lines[state.index]; // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.
+
+	        if (operation === '-' && line[0] === '+') {
+	          operation = '+';
+	        }
+
+	        if (operation === line[0]) {
+	          ret.push(line);
+	          state.index++;
+	        } else {
+	          break;
+	        }
+	      }
+
+	      return ret;
+	    }
+
+	    function collectContext(state, matchChanges) {
+	      var changes = [],
+	          merged = [],
+	          matchIndex = 0,
+	          contextChanges = false,
+	          conflicted = false;
+
+	      while (matchIndex < matchChanges.length && state.index < state.lines.length) {
+	        var change = state.lines[state.index],
+	            match = matchChanges[matchIndex]; // Once we've hit our add, then we are done
+
+	        if (match[0] === '+') {
+	          break;
+	        }
+
+	        contextChanges = contextChanges || change[0] !== ' ';
+	        merged.push(match);
+	        matchIndex++; // Consume any additions in the other block as a conflict to attempt
+	        // to pull in the remaining context after this
+
+	        if (change[0] === '+') {
+	          conflicted = true;
+
+	          while (change[0] === '+') {
+	            changes.push(change);
+	            change = state.lines[++state.index];
+	          }
+	        }
+
+	        if (match.substr(1) === change.substr(1)) {
+	          changes.push(change);
+	          state.index++;
+	        } else {
+	          conflicted = true;
+	        }
+	      }
+
+	      if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
+	        conflicted = true;
+	      }
+
+	      if (conflicted) {
+	        return changes;
+	      }
+
+	      while (matchIndex < matchChanges.length) {
+	        merged.push(matchChanges[matchIndex++]);
+	      }
+
+	      return {
+	        merged: merged,
+	        changes: changes
+	      };
+	    }
+
+	    function allRemoves(changes) {
+	      return changes.reduce(function (prev, change) {
+	        return prev && change[0] === '-';
+	      }, true);
+	    }
+
+	    function skipRemoveSuperset(state, removeChanges, delta) {
+	      for (var i = 0; i < delta; i++) {
+	        var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);
+
+	        if (state.lines[state.index + i] !== ' ' + changeContent) {
+	          return false;
+	        }
+	      }
+
+	      state.index += delta;
+	      return true;
+	    }
+
+	    function calcOldNewLineCount(lines) {
+	      var oldLines = 0;
+	      var newLines = 0;
+	      lines.forEach(function (line) {
+	        if (typeof line !== 'string') {
+	          var myCount = calcOldNewLineCount(line.mine);
+	          var theirCount = calcOldNewLineCount(line.theirs);
+
+	          if (oldLines !== undefined) {
+	            if (myCount.oldLines === theirCount.oldLines) {
+	              oldLines += myCount.oldLines;
+	            } else {
+	              oldLines = undefined;
+	            }
+	          }
+
+	          if (newLines !== undefined) {
+	            if (myCount.newLines === theirCount.newLines) {
+	              newLines += myCount.newLines;
+	            } else {
+	              newLines = undefined;
+	            }
+	          }
+	        } else {
+	          if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
+	            newLines++;
+	          }
+
+	          if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
+	            oldLines++;
+	          }
+	        }
+	      });
+	      return {
+	        oldLines: oldLines,
+	        newLines: newLines
+	      };
+	    } // See: http://code.google.com/p/google-diff-match-patch/wiki/API
+
+
+	    function convertChangesToDMP(changes) {
+	      var ret = [],
+	          change,
+	          operation;
+
+	      for (var i = 0; i < changes.length; i++) {
+	        change = changes[i];
+
+	        if (change.added) {
+	          operation = 1;
+	        } else if (change.removed) {
+	          operation = -1;
+	        } else {
+	          operation = 0;
+	        }
+
+	        ret.push([operation, change.value]);
+	      }
+
+	      return ret;
+	    }
+
+	    function convertChangesToXML(changes) {
+	      var ret = [];
+
+	      for (var i = 0; i < changes.length; i++) {
+	        var change = changes[i];
+
+	        if (change.added) {
+	          ret.push('<ins>');
+	        } else if (change.removed) {
+	          ret.push('<del>');
+	        }
+
+	        ret.push(escapeHTML(change.value));
+
+	        if (change.added) {
+	          ret.push('</ins>');
+	        } else if (change.removed) {
+	          ret.push('</del>');
+	        }
+	      }
+
+	      return ret.join('');
+	    }
+
+	    function escapeHTML(s) {
+	      var n = s;
+	      n = n.replace(/&/g, '&amp;');
+	      n = n.replace(/</g, '&lt;');
+	      n = n.replace(/>/g, '&gt;');
+	      n = n.replace(/"/g, '&quot;');
+	      return n;
+	    }
+
+	    exports.Diff = Diff;
+	    exports.applyPatch = applyPatch;
+	    exports.applyPatches = applyPatches;
+	    exports.canonicalize = canonicalize;
+	    exports.convertChangesToDMP = convertChangesToDMP;
+	    exports.convertChangesToXML = convertChangesToXML;
+	    exports.createPatch = createPatch;
+	    exports.createTwoFilesPatch = createTwoFilesPatch;
+	    exports.diffArrays = diffArrays;
+	    exports.diffChars = diffChars;
+	    exports.diffCss = diffCss;
+	    exports.diffJson = diffJson;
+	    exports.diffLines = diffLines;
+	    exports.diffSentences = diffSentences;
+	    exports.diffTrimmedLines = diffTrimmedLines;
+	    exports.diffWords = diffWords;
+	    exports.diffWordsWithSpace = diffWordsWithSpace;
+	    exports.merge = merge;
+	    exports.parsePatch = parsePatch;
+	    exports.structuredPatch = structuredPatch;
+	    Object.defineProperty(exports, '__esModule', {
+	      value: true
+	    });
+	  });
+	});
+
+	/**
+	 * Helpers.
+	 */
+	var s$1 = 1000;
+	var m$1 = s$1 * 60;
+	var h$1 = m$1 * 60;
+	var d$1 = h$1 * 24;
+	var w$1 = d$1 * 7;
+	var y$1 = d$1 * 365.25;
+	/**
+	 * Parse or format the given `val`.
+	 *
+	 * Options:
+	 *
+	 *  - `long` verbose formatting [false]
+	 *
+	 * @param {String|Number} val
+	 * @param {Object} [options]
+	 * @throws {Error} throw an error if val is not a non-empty string or a number
+	 * @return {String|Number}
+	 * @api public
+	 */
+
+	var ms$1 = function ms(val, options) {
+	  options = options || {};
+
+	  var type = _typeof(val);
+
+	  if (type === 'string' && val.length > 0) {
+	    return parse$1(val);
+	  } else if (type === 'number' && isFinite(val)) {
+	    return options["long"] ? fmtLong$1(val) : fmtShort$1(val);
+	  }
+
+	  throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
+	};
+	/**
+	 * Parse the given `str` and return milliseconds.
+	 *
+	 * @param {String} str
+	 * @return {Number}
+	 * @api private
+	 */
+
+
+	function parse$1(str) {
+	  str = String(str);
+
+	  if (str.length > 100) {
+	    return;
+	  }
+
+	  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
+
+	  if (!match) {
+	    return;
+	  }
+
+	  var n = parseFloat(match[1]);
+	  var type = (match[2] || 'ms').toLowerCase();
+
+	  switch (type) {
+	    case 'years':
+	    case 'year':
+	    case 'yrs':
+	    case 'yr':
+	    case 'y':
+	      return n * y$1;
+
+	    case 'weeks':
+	    case 'week':
+	    case 'w':
+	      return n * w$1;
+
+	    case 'days':
+	    case 'day':
+	    case 'd':
+	      return n * d$1;
+
+	    case 'hours':
+	    case 'hour':
+	    case 'hrs':
+	    case 'hr':
+	    case 'h':
+	      return n * h$1;
+
+	    case 'minutes':
+	    case 'minute':
+	    case 'mins':
+	    case 'min':
+	    case 'm':
+	      return n * m$1;
+
+	    case 'seconds':
+	    case 'second':
+	    case 'secs':
+	    case 'sec':
+	    case 's':
+	      return n * s$1;
+
+	    case 'milliseconds':
+	    case 'millisecond':
+	    case 'msecs':
+	    case 'msec':
+	    case 'ms':
+	      return n;
+
+	    default:
+	      return undefined;
+	  }
+	}
+	/**
+	 * Short format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+
+
+	function fmtShort$1(ms) {
+	  var msAbs = Math.abs(ms);
+
+	  if (msAbs >= d$1) {
+	    return Math.round(ms / d$1) + 'd';
+	  }
+
+	  if (msAbs >= h$1) {
+	    return Math.round(ms / h$1) + 'h';
+	  }
+
+	  if (msAbs >= m$1) {
+	    return Math.round(ms / m$1) + 'm';
+	  }
+
+	  if (msAbs >= s$1) {
+	    return Math.round(ms / s$1) + 's';
+	  }
+
+	  return ms + 'ms';
+	}
+	/**
+	 * Long format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+
+
+	function fmtLong$1(ms) {
+	  var msAbs = Math.abs(ms);
+
+	  if (msAbs >= d$1) {
+	    return plural$1(ms, msAbs, d$1, 'day');
+	  }
+
+	  if (msAbs >= h$1) {
+	    return plural$1(ms, msAbs, h$1, 'hour');
+	  }
+
+	  if (msAbs >= m$1) {
+	    return plural$1(ms, msAbs, m$1, 'minute');
+	  }
+
+	  if (msAbs >= s$1) {
+	    return plural$1(ms, msAbs, s$1, 'second');
+	  }
+
+	  return ms + ' ms';
+	}
+	/**
+	 * Pluralization helper.
+	 */
+
+
+	function plural$1(ms, msAbs, n, name) {
+	  var isPlural = msAbs >= n * 1.5;
+	  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+	}
+
+	var freezing = !fails(function () {
+	  // eslint-disable-next-line es/no-object-isextensible, es/no-object-preventextensions -- required for testing
+	  return Object.isExtensible(Object.preventExtensions({}));
+	});
+
+	var internalMetadata = createCommonjsModule(function (module) {
+	var defineProperty = objectDefineProperty.f;
+
+
+
+
+
+	var REQUIRED = false;
+	var METADATA = uid('meta');
+	var id = 0;
+
+	// eslint-disable-next-line es/no-object-isextensible -- safe
+	var isExtensible = Object.isExtensible || function () {
+	  return true;
+	};
+
+	var setMetadata = function (it) {
+	  defineProperty(it, METADATA, { value: {
+	    objectID: 'O' + id++, // object ID
+	    weakData: {}          // weak collections IDs
+	  } });
+	};
+
+	var fastKey = function (it, create) {
+	  // return a primitive with prefix
+	  if (!isObject$1(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
+	  if (!has$1(it, METADATA)) {
+	    // can't set metadata to uncaught frozen object
+	    if (!isExtensible(it)) return 'F';
+	    // not necessary to add metadata
+	    if (!create) return 'E';
+	    // add missing metadata
+	    setMetadata(it);
+	  // return object ID
+	  } return it[METADATA].objectID;
+	};
+
+	var getWeakData = function (it, create) {
+	  if (!has$1(it, METADATA)) {
+	    // can't set metadata to uncaught frozen object
+	    if (!isExtensible(it)) return true;
+	    // not necessary to add metadata
+	    if (!create) return false;
+	    // add missing metadata
+	    setMetadata(it);
+	  // return the store of weak collections IDs
+	  } return it[METADATA].weakData;
+	};
+
+	// add metadata on freeze-family methods calling
+	var onFreeze = function (it) {
+	  if (freezing && REQUIRED && isExtensible(it) && !has$1(it, METADATA)) setMetadata(it);
+	  return it;
+	};
+
+	var enable = function () {
+	  meta.enable = function () { /* empty */ };
+	  REQUIRED = true;
+	  var getOwnPropertyNames = objectGetOwnPropertyNames.f;
+	  var splice = [].splice;
+	  var test = {};
+	  test[METADATA] = 1;
+
+	  // prevent exposing of metadata key
+	  if (getOwnPropertyNames(test).length) {
+	    objectGetOwnPropertyNames.f = function (it) {
+	      var result = getOwnPropertyNames(it);
+	      for (var i = 0, length = result.length; i < length; i++) {
+	        if (result[i] === METADATA) {
+	          splice.call(result, i, 1);
+	          break;
+	        }
+	      } return result;
+	    };
+
+	    _export({ target: 'Object', stat: true, forced: true }, {
+	      getOwnPropertyNames: objectGetOwnPropertyNamesExternal.f
+	    });
+	  }
+	};
+
+	var meta = module.exports = {
+	  enable: enable,
+	  fastKey: fastKey,
+	  getWeakData: getWeakData,
+	  onFreeze: onFreeze
+	};
+
+	hiddenKeys$1[METADATA] = true;
+	});
+
+	var collection = function (CONSTRUCTOR_NAME, wrapper, common) {
+	  var IS_MAP = CONSTRUCTOR_NAME.indexOf('Map') !== -1;
+	  var IS_WEAK = CONSTRUCTOR_NAME.indexOf('Weak') !== -1;
+	  var ADDER = IS_MAP ? 'set' : 'add';
+	  var NativeConstructor = global_1[CONSTRUCTOR_NAME];
+	  var NativePrototype = NativeConstructor && NativeConstructor.prototype;
+	  var Constructor = NativeConstructor;
+	  var exported = {};
+
+	  var fixMethod = function (KEY) {
+	    var nativeMethod = NativePrototype[KEY];
+	    redefine(NativePrototype, KEY,
+	      KEY == 'add' ? function add(value) {
+	        nativeMethod.call(this, value === 0 ? 0 : value);
+	        return this;
+	      } : KEY == 'delete' ? function (key) {
+	        return IS_WEAK && !isObject$1(key) ? false : nativeMethod.call(this, key === 0 ? 0 : key);
+	      } : KEY == 'get' ? function get(key) {
+	        return IS_WEAK && !isObject$1(key) ? undefined : nativeMethod.call(this, key === 0 ? 0 : key);
+	      } : KEY == 'has' ? function has(key) {
+	        return IS_WEAK && !isObject$1(key) ? false : nativeMethod.call(this, key === 0 ? 0 : key);
+	      } : function set(key, value) {
+	        nativeMethod.call(this, key === 0 ? 0 : key, value);
+	        return this;
+	      }
+	    );
+	  };
+
+	  var REPLACE = isForced_1(
+	    CONSTRUCTOR_NAME,
+	    !isCallable(NativeConstructor) || !(IS_WEAK || NativePrototype.forEach && !fails(function () {
+	      new NativeConstructor().entries().next();
+	    }))
+	  );
+
+	  if (REPLACE) {
+	    // create collection constructor
+	    Constructor = common.getConstructor(wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER);
+	    internalMetadata.enable();
+	  } else if (isForced_1(CONSTRUCTOR_NAME, true)) {
+	    var instance = new Constructor();
+	    // early implementations not supports chaining
+	    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
+	    // V8 ~ Chromium 40- weak-collections throws on primitives, but should return false
+	    var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });
+	    // most early implementations doesn't supports iterables, most modern - not close it correctly
+	    // eslint-disable-next-line no-new -- required for testing
+	    var ACCEPT_ITERABLES = checkCorrectnessOfIteration(function (iterable) { new NativeConstructor(iterable); });
+	    // for early implementations -0 and +0 not the same
+	    var BUGGY_ZERO = !IS_WEAK && fails(function () {
+	      // V8 ~ Chromium 42- fails only with 5+ elements
+	      var $instance = new NativeConstructor();
+	      var index = 5;
+	      while (index--) $instance[ADDER](index, index);
+	      return !$instance.has(-0);
+	    });
+
+	    if (!ACCEPT_ITERABLES) {
+	      Constructor = wrapper(function (dummy, iterable) {
+	        anInstance(dummy, Constructor, CONSTRUCTOR_NAME);
+	        var that = inheritIfRequired(new NativeConstructor(), dummy, Constructor);
+	        if (iterable != undefined) iterate(iterable, that[ADDER], { that: that, AS_ENTRIES: IS_MAP });
+	        return that;
+	      });
+	      Constructor.prototype = NativePrototype;
+	      NativePrototype.constructor = Constructor;
+	    }
+
+	    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
+	      fixMethod('delete');
+	      fixMethod('has');
+	      IS_MAP && fixMethod('get');
+	    }
+
+	    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
+
+	    // weak collections should not contains .clear method
+	    if (IS_WEAK && NativePrototype.clear) delete NativePrototype.clear;
+	  }
+
+	  exported[CONSTRUCTOR_NAME] = Constructor;
+	  _export({ global: true, forced: Constructor != NativeConstructor }, exported);
+
+	  setToStringTag(Constructor, CONSTRUCTOR_NAME);
+
+	  if (!IS_WEAK) common.setStrong(Constructor, CONSTRUCTOR_NAME, IS_MAP);
+
+	  return Constructor;
+	};
+
+	var defineProperty$1 = objectDefineProperty.f;
+
+
+
+
+
+
+
+
+	var fastKey = internalMetadata.fastKey;
+
+
+	var setInternalState = internalState.set;
+	var internalStateGetterFor = internalState.getterFor;
+
+	var collectionStrong = {
+	  getConstructor: function (wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER) {
+	    var C = wrapper(function (that, iterable) {
+	      anInstance(that, C, CONSTRUCTOR_NAME);
+	      setInternalState(that, {
+	        type: CONSTRUCTOR_NAME,
+	        index: objectCreate(null),
+	        first: undefined,
+	        last: undefined,
+	        size: 0
+	      });
+	      if (!descriptors) that.size = 0;
+	      if (iterable != undefined) iterate(iterable, that[ADDER], { that: that, AS_ENTRIES: IS_MAP });
+	    });
+
+	    var getInternalState = internalStateGetterFor(CONSTRUCTOR_NAME);
+
+	    var define = function (that, key, value) {
+	      var state = getInternalState(that);
+	      var entry = getEntry(that, key);
+	      var previous, index;
+	      // change existing entry
+	      if (entry) {
+	        entry.value = value;
+	      // create new entry
+	      } else {
+	        state.last = entry = {
+	          index: index = fastKey(key, true),
+	          key: key,
+	          value: value,
+	          previous: previous = state.last,
+	          next: undefined,
+	          removed: false
+	        };
+	        if (!state.first) state.first = entry;
+	        if (previous) previous.next = entry;
+	        if (descriptors) state.size++;
+	        else that.size++;
+	        // add to index
+	        if (index !== 'F') state.index[index] = entry;
+	      } return that;
+	    };
+
+	    var getEntry = function (that, key) {
+	      var state = getInternalState(that);
+	      // fast case
+	      var index = fastKey(key);
+	      var entry;
+	      if (index !== 'F') return state.index[index];
+	      // frozen object case
+	      for (entry = state.first; entry; entry = entry.next) {
+	        if (entry.key == key) return entry;
+	      }
+	    };
+
+	    redefineAll(C.prototype, {
+	      // `{ Map, Set }.prototype.clear()` methods
+	      // https://tc39.es/ecma262/#sec-map.prototype.clear
+	      // https://tc39.es/ecma262/#sec-set.prototype.clear
+	      clear: function clear() {
+	        var that = this;
+	        var state = getInternalState(that);
+	        var data = state.index;
+	        var entry = state.first;
+	        while (entry) {
+	          entry.removed = true;
+	          if (entry.previous) entry.previous = entry.previous.next = undefined;
+	          delete data[entry.index];
+	          entry = entry.next;
+	        }
+	        state.first = state.last = undefined;
+	        if (descriptors) state.size = 0;
+	        else that.size = 0;
+	      },
+	      // `{ Map, Set }.prototype.delete(key)` methods
+	      // https://tc39.es/ecma262/#sec-map.prototype.delete
+	      // https://tc39.es/ecma262/#sec-set.prototype.delete
+	      'delete': function (key) {
+	        var that = this;
+	        var state = getInternalState(that);
+	        var entry = getEntry(that, key);
+	        if (entry) {
+	          var next = entry.next;
+	          var prev = entry.previous;
+	          delete state.index[entry.index];
+	          entry.removed = true;
+	          if (prev) prev.next = next;
+	          if (next) next.previous = prev;
+	          if (state.first == entry) state.first = next;
+	          if (state.last == entry) state.last = prev;
+	          if (descriptors) state.size--;
+	          else that.size--;
+	        } return !!entry;
+	      },
+	      // `{ Map, Set }.prototype.forEach(callbackfn, thisArg = undefined)` methods
+	      // https://tc39.es/ecma262/#sec-map.prototype.foreach
+	      // https://tc39.es/ecma262/#sec-set.prototype.foreach
+	      forEach: function forEach(callbackfn /* , that = undefined */) {
+	        var state = getInternalState(this);
+	        var boundFunction = functionBindContext(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
+	        var entry;
+	        while (entry = entry ? entry.next : state.first) {
+	          boundFunction(entry.value, entry.key, this);
+	          // revert to the last existing entry
+	          while (entry && entry.removed) entry = entry.previous;
+	        }
+	      },
+	      // `{ Map, Set}.prototype.has(key)` methods
+	      // https://tc39.es/ecma262/#sec-map.prototype.has
+	      // https://tc39.es/ecma262/#sec-set.prototype.has
+	      has: function has(key) {
+	        return !!getEntry(this, key);
+	      }
+	    });
+
+	    redefineAll(C.prototype, IS_MAP ? {
+	      // `Map.prototype.get(key)` method
+	      // https://tc39.es/ecma262/#sec-map.prototype.get
+	      get: function get(key) {
+	        var entry = getEntry(this, key);
+	        return entry && entry.value;
+	      },
+	      // `Map.prototype.set(key, value)` method
+	      // https://tc39.es/ecma262/#sec-map.prototype.set
+	      set: function set(key, value) {
+	        return define(this, key === 0 ? 0 : key, value);
+	      }
+	    } : {
+	      // `Set.prototype.add(value)` method
+	      // https://tc39.es/ecma262/#sec-set.prototype.add
+	      add: function add(value) {
+	        return define(this, value = value === 0 ? 0 : value, value);
+	      }
+	    });
+	    if (descriptors) defineProperty$1(C.prototype, 'size', {
+	      get: function () {
+	        return getInternalState(this).size;
+	      }
+	    });
+	    return C;
+	  },
+	  setStrong: function (C, CONSTRUCTOR_NAME, IS_MAP) {
+	    var ITERATOR_NAME = CONSTRUCTOR_NAME + ' Iterator';
+	    var getInternalCollectionState = internalStateGetterFor(CONSTRUCTOR_NAME);
+	    var getInternalIteratorState = internalStateGetterFor(ITERATOR_NAME);
+	    // `{ Map, Set }.prototype.{ keys, values, entries, @@iterator }()` methods
+	    // https://tc39.es/ecma262/#sec-map.prototype.entries
+	    // https://tc39.es/ecma262/#sec-map.prototype.keys
+	    // https://tc39.es/ecma262/#sec-map.prototype.values
+	    // https://tc39.es/ecma262/#sec-map.prototype-@@iterator
+	    // https://tc39.es/ecma262/#sec-set.prototype.entries
+	    // https://tc39.es/ecma262/#sec-set.prototype.keys
+	    // https://tc39.es/ecma262/#sec-set.prototype.values
+	    // https://tc39.es/ecma262/#sec-set.prototype-@@iterator
+	    defineIterator(C, CONSTRUCTOR_NAME, function (iterated, kind) {
+	      setInternalState(this, {
+	        type: ITERATOR_NAME,
+	        target: iterated,
+	        state: getInternalCollectionState(iterated),
+	        kind: kind,
+	        last: undefined
+	      });
+	    }, function () {
+	      var state = getInternalIteratorState(this);
+	      var kind = state.kind;
+	      var entry = state.last;
+	      // revert to the last existing entry
+	      while (entry && entry.removed) entry = entry.previous;
+	      // get next entry
+	      if (!state.target || !(state.last = entry = entry ? entry.next : state.state.first)) {
+	        // or finish the iteration
+	        state.target = undefined;
+	        return { value: undefined, done: true };
+	      }
+	      // return step by kind
+	      if (kind == 'keys') return { value: entry.key, done: false };
+	      if (kind == 'values') return { value: entry.value, done: false };
+	      return { value: [entry.key, entry.value], done: false };
+	    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);
+
+	    // `{ Map, Set }.prototype[@@species]` accessors
+	    // https://tc39.es/ecma262/#sec-get-map-@@species
+	    // https://tc39.es/ecma262/#sec-get-set-@@species
+	    setSpecies(CONSTRUCTOR_NAME);
+	  }
+	};
+
+	// `Set` constructor
+	// https://tc39.es/ecma262/#sec-set-objects
+	collection('Set', function (init) {
+	  return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };
+	}, collectionStrong);
+
+	// eslint-disable-next-line es/no-object-assign -- safe
+	var $assign = Object.assign;
+	// eslint-disable-next-line es/no-object-defineproperty -- required for testing
+	var defineProperty = Object.defineProperty;
+
+	// `Object.assign` method
+	// https://tc39.es/ecma262/#sec-object.assign
+	var objectAssign = !$assign || fails(function () {
+	  // should have correct order of operations (Edge bug)
+	  if (descriptors && $assign({ b: 1 }, $assign(defineProperty({}, 'a', {
+	    enumerable: true,
+	    get: function () {
+	      defineProperty(this, 'b', {
+	        value: 3,
+	        enumerable: false
+	      });
+	    }
+	  }), { b: 2 })).b !== 1) return true;
+	  // should work with symbols and should have deterministic property order (V8 bug)
+	  var A = {};
+	  var B = {};
+	  // eslint-disable-next-line es/no-symbol -- safe
+	  var symbol = Symbol();
+	  var alphabet = 'abcdefghijklmnopqrst';
+	  A[symbol] = 7;
+	  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
+	  return $assign({}, A)[symbol] != 7 || objectKeys($assign({}, B)).join('') != alphabet;
+	}) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
+	  var T = toObject(target);
+	  var argumentsLength = arguments.length;
+	  var index = 1;
+	  var getOwnPropertySymbols = objectGetOwnPropertySymbols.f;
+	  var propertyIsEnumerable = objectPropertyIsEnumerable.f;
+	  while (argumentsLength > index) {
+	    var S = indexedObject(arguments[index++]);
+	    var keys = getOwnPropertySymbols ? objectKeys(S).concat(getOwnPropertySymbols(S)) : objectKeys(S);
+	    var length = keys.length;
+	    var j = 0;
+	    var key;
+	    while (length > j) {
+	      key = keys[j++];
+	      if (!descriptors || propertyIsEnumerable.call(S, key)) T[key] = S[key];
+	    }
+	  } return T;
+	} : $assign;
+
+	// `Object.assign` method
+	// https://tc39.es/ecma262/#sec-object.assign
+	// eslint-disable-next-line es/no-object-assign -- required for testing
+	_export({ target: 'Object', stat: true, forced: Object.assign !== objectAssign }, {
+	  assign: objectAssign
+	});
+
+	var onFreeze = internalMetadata.onFreeze;
+
+	// eslint-disable-next-line es/no-object-freeze -- safe
+	var $freeze = Object.freeze;
+	var FAILS_ON_PRIMITIVES = fails(function () { $freeze(1); });
+
+	// `Object.freeze` method
+	// https://tc39.es/ecma262/#sec-object.freeze
+	_export({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !freezing }, {
+	  freeze: function freeze(it) {
+	    return $freeze && isObject$1(it) ? $freeze(onFreeze(it)) : it;
+	  }
+	});
+
+	var browser$2 = true;
+
+	// This alphabet uses `A-Za-z0-9_-` symbols. The genetic algorithm helped
+	// optimize the gzip compression for this alphabet.
+	var urlAlphabet = 'ModuleSymbhasOwnPr-0123456789ABCDEFGHNRVfgctiUvz_KqYTJkLxpZXIjQW';
+
+	var customAlphabet = function customAlphabet(alphabet, size) {
+	  return function () {
+	    var id = ''; // A compact alternative for `for (var i = 0; i < step; i++)`.
+
+	    var i = size;
+
+	    while (i--) {
+	      // `| 0` is more compact and faster than `Math.floor()`.
+	      id += alphabet[Math.random() * alphabet.length | 0];
+	    }
+
+	    return id;
+	  };
+	};
+
+	var nanoid = function nanoid() {
+	  var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 21;
+	  var id = ''; // A compact alternative for `for (var i = 0; i < step; i++)`.
+
+	  var i = size;
+
+	  while (i--) {
+	    // `| 0` is more compact and faster than `Math.floor()`.
+	    id += urlAlphabet[Math.random() * 64 | 0];
+	  }
+
+	  return id;
+	};
+
+	var nonSecure = /*#__PURE__*/Object.freeze({
+		__proto__: null,
+		nanoid: nanoid,
+		customAlphabet: customAlphabet
+	});
+
+	var he = createCommonjsModule(function (module, exports) {
+
+	  (function (root) {
+	    // Detect free variables `exports`.
+	    var freeExports = exports; // Detect free variable `module`.
+
+	    var freeModule = module && module.exports == freeExports && module; // Detect free variable `global`, from Node.js or Browserified code,
+	    // and use it as `root`.
+
+	    var freeGlobal = _typeof(commonjsGlobal) == 'object' && commonjsGlobal;
+
+	    if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+	      root = freeGlobal;
+	    }
+	    /*--------------------------------------------------------------------------*/
+	    // All astral symbols.
+
+
+	    var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g; // All ASCII symbols (not just printable ASCII) except those listed in the
+	    // first column of the overrides table.
+	    // https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
+
+	    var regexAsciiWhitelist = /[\x01-\x7F]/g; // All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
+	    // code points listed in the first column of the overrides table on
+	    // https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
+
+	    var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
+	    var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
+	    var encodeMap = {
+	      '\xAD': 'shy',
+	      "\u200C": 'zwnj',
+	      "\u200D": 'zwj',
+	      "\u200E": 'lrm',
+	      "\u2063": 'ic',
+	      "\u2062": 'it',
+	      "\u2061": 'af',
+	      "\u200F": 'rlm',
+	      "\u200B": 'ZeroWidthSpace',
+	      "\u2060": 'NoBreak',
+	      "\u0311": 'DownBreve',
+	      "\u20DB": 'tdot',
+	      "\u20DC": 'DotDot',
+	      '\t': 'Tab',
+	      '\n': 'NewLine',
+	      "\u2008": 'puncsp',
+	      "\u205F": 'MediumSpace',
+	      "\u2009": 'thinsp',
+	      "\u200A": 'hairsp',
+	      "\u2004": 'emsp13',
+	      "\u2002": 'ensp',
+	      "\u2005": 'emsp14',
+	      "\u2003": 'emsp',
+	      "\u2007": 'numsp',
+	      '\xA0': 'nbsp',
+	      "\u205F\u200A": 'ThickSpace',
+	      "\u203E": 'oline',
+	      '_': 'lowbar',
+	      "\u2010": 'dash',
+	      "\u2013": 'ndash',
+	      "\u2014": 'mdash',
+	      "\u2015": 'horbar',
+	      ',': 'comma',
+	      ';': 'semi',
+	      "\u204F": 'bsemi',
+	      ':': 'colon',
+	      "\u2A74": 'Colone',
+	      '!': 'excl',
+	      '\xA1': 'iexcl',
+	      '?': 'quest',
+	      '\xBF': 'iquest',
+	      '.': 'period',
+	      "\u2025": 'nldr',
+	      "\u2026": 'mldr',
+	      '\xB7': 'middot',
+	      '\'': 'apos',
+	      "\u2018": 'lsquo',
+	      "\u2019": 'rsquo',
+	      "\u201A": 'sbquo',
+	      "\u2039": 'lsaquo',
+	      "\u203A": 'rsaquo',
+	      '"': 'quot',
+	      "\u201C": 'ldquo',
+	      "\u201D": 'rdquo',
+	      "\u201E": 'bdquo',
+	      '\xAB': 'laquo',
+	      '\xBB': 'raquo',
+	      '(': 'lpar',
+	      ')': 'rpar',
+	      '[': 'lsqb',
+	      ']': 'rsqb',
+	      '{': 'lcub',
+	      '}': 'rcub',
+	      "\u2308": 'lceil',
+	      "\u2309": 'rceil',
+	      "\u230A": 'lfloor',
+	      "\u230B": 'rfloor',
+	      "\u2985": 'lopar',
+	      "\u2986": 'ropar',
+	      "\u298B": 'lbrke',
+	      "\u298C": 'rbrke',
+	      "\u298D": 'lbrkslu',
+	      "\u298E": 'rbrksld',
+	      "\u298F": 'lbrksld',
+	      "\u2990": 'rbrkslu',
+	      "\u2991": 'langd',
+	      "\u2992": 'rangd',
+	      "\u2993": 'lparlt',
+	      "\u2994": 'rpargt',
+	      "\u2995": 'gtlPar',
+	      "\u2996": 'ltrPar',
+	      "\u27E6": 'lobrk',
+	      "\u27E7": 'robrk',
+	      "\u27E8": 'lang',
+	      "\u27E9": 'rang',
+	      "\u27EA": 'Lang',
+	      "\u27EB": 'Rang',
+	      "\u27EC": 'loang',
+	      "\u27ED": 'roang',
+	      "\u2772": 'lbbrk',
+	      "\u2773": 'rbbrk',
+	      "\u2016": 'Vert',
+	      '\xA7': 'sect',
+	      '\xB6': 'para',
+	      '@': 'commat',
+	      '*': 'ast',
+	      '/': 'sol',
+	      'undefined': null,
+	      '&': 'amp',
+	      '#': 'num',
+	      '%': 'percnt',
+	      "\u2030": 'permil',
+	      "\u2031": 'pertenk',
+	      "\u2020": 'dagger',
+	      "\u2021": 'Dagger',
+	      "\u2022": 'bull',
+	      "\u2043": 'hybull',
+	      "\u2032": 'prime',
+	      "\u2033": 'Prime',
+	      "\u2034": 'tprime',
+	      "\u2057": 'qprime',
+	      "\u2035": 'bprime',
+	      "\u2041": 'caret',
+	      '`': 'grave',
+	      '\xB4': 'acute',
+	      "\u02DC": 'tilde',
+	      '^': 'Hat',
+	      '\xAF': 'macr',
+	      "\u02D8": 'breve',
+	      "\u02D9": 'dot',
+	      '\xA8': 'die',
+	      "\u02DA": 'ring',
+	      "\u02DD": 'dblac',
+	      '\xB8': 'cedil',
+	      "\u02DB": 'ogon',
+	      "\u02C6": 'circ',
+	      "\u02C7": 'caron',
+	      '\xB0': 'deg',
+	      '\xA9': 'copy',
+	      '\xAE': 'reg',
+	      "\u2117": 'copysr',
+	      "\u2118": 'wp',
+	      "\u211E": 'rx',
+	      "\u2127": 'mho',
+	      "\u2129": 'iiota',
+	      "\u2190": 'larr',
+	      "\u219A": 'nlarr',
+	      "\u2192": 'rarr',
+	      "\u219B": 'nrarr',
+	      "\u2191": 'uarr',
+	      "\u2193": 'darr',
+	      "\u2194": 'harr',
+	      "\u21AE": 'nharr',
+	      "\u2195": 'varr',
+	      "\u2196": 'nwarr',
+	      "\u2197": 'nearr',
+	      "\u2198": 'searr',
+	      "\u2199": 'swarr',
+	      "\u219D": 'rarrw',
+	      "\u219D\u0338": 'nrarrw',
+	      "\u219E": 'Larr',
+	      "\u219F": 'Uarr',
+	      "\u21A0": 'Rarr',
+	      "\u21A1": 'Darr',
+	      "\u21A2": 'larrtl',
+	      "\u21A3": 'rarrtl',
+	      "\u21A4": 'mapstoleft',
+	      "\u21A5": 'mapstoup',
+	      "\u21A6": 'map',
+	      "\u21A7": 'mapstodown',
+	      "\u21A9": 'larrhk',
+	      "\u21AA": 'rarrhk',
+	      "\u21AB": 'larrlp',
+	      "\u21AC": 'rarrlp',
+	      "\u21AD": 'harrw',
+	      "\u21B0": 'lsh',
+	      "\u21B1": 'rsh',
+	      "\u21B2": 'ldsh',
+	      "\u21B3": 'rdsh',
+	      "\u21B5": 'crarr',
+	      "\u21B6": 'cularr',
+	      "\u21B7": 'curarr',
+	      "\u21BA": 'olarr',
+	      "\u21BB": 'orarr',
+	      "\u21BC": 'lharu',
+	      "\u21BD": 'lhard',
+	      "\u21BE": 'uharr',
+	      "\u21BF": 'uharl',
+	      "\u21C0": 'rharu',
+	      "\u21C1": 'rhard',
+	      "\u21C2": 'dharr',
+	      "\u21C3": 'dharl',
+	      "\u21C4": 'rlarr',
+	      "\u21C5": 'udarr',
+	      "\u21C6": 'lrarr',
+	      "\u21C7": 'llarr',
+	      "\u21C8": 'uuarr',
+	      "\u21C9": 'rrarr',
+	      "\u21CA": 'ddarr',
+	      "\u21CB": 'lrhar',
+	      "\u21CC": 'rlhar',
+	      "\u21D0": 'lArr',
+	      "\u21CD": 'nlArr',
+	      "\u21D1": 'uArr',
+	      "\u21D2": 'rArr',
+	      "\u21CF": 'nrArr',
+	      "\u21D3": 'dArr',
+	      "\u21D4": 'iff',
+	      "\u21CE": 'nhArr',
+	      "\u21D5": 'vArr',
+	      "\u21D6": 'nwArr',
+	      "\u21D7": 'neArr',
+	      "\u21D8": 'seArr',
+	      "\u21D9": 'swArr',
+	      "\u21DA": 'lAarr',
+	      "\u21DB": 'rAarr',
+	      "\u21DD": 'zigrarr',
+	      "\u21E4": 'larrb',
+	      "\u21E5": 'rarrb',
+	      "\u21F5": 'duarr',
+	      "\u21FD": 'loarr',
+	      "\u21FE": 'roarr',
+	      "\u21FF": 'hoarr',
+	      "\u2200": 'forall',
+	      "\u2201": 'comp',
+	      "\u2202": 'part',
+	      "\u2202\u0338": 'npart',
+	      "\u2203": 'exist',
+	      "\u2204": 'nexist',
+	      "\u2205": 'empty',
+	      "\u2207": 'Del',
+	      "\u2208": 'in',
+	      "\u2209": 'notin',
+	      "\u220B": 'ni',
+	      "\u220C": 'notni',
+	      "\u03F6": 'bepsi',
+	      "\u220F": 'prod',
+	      "\u2210": 'coprod',
+	      "\u2211": 'sum',
+	      '+': 'plus',
+	      '\xB1': 'pm',
+	      '\xF7': 'div',
+	      '\xD7': 'times',
+	      '<': 'lt',
+	      "\u226E": 'nlt',
+	      "<\u20D2": 'nvlt',
+	      '=': 'equals',
+	      "\u2260": 'ne',
+	      "=\u20E5": 'bne',
+	      "\u2A75": 'Equal',
+	      '>': 'gt',
+	      "\u226F": 'ngt',
+	      ">\u20D2": 'nvgt',
+	      '\xAC': 'not',
+	      '|': 'vert',
+	      '\xA6': 'brvbar',
+	      "\u2212": 'minus',
+	      "\u2213": 'mp',
+	      "\u2214": 'plusdo',
+	      "\u2044": 'frasl',
+	      "\u2216": 'setmn',
+	      "\u2217": 'lowast',
+	      "\u2218": 'compfn',
+	      "\u221A": 'Sqrt',
+	      "\u221D": 'prop',
+	      "\u221E": 'infin',
+	      "\u221F": 'angrt',
+	      "\u2220": 'ang',
+	      "\u2220\u20D2": 'nang',
+	      "\u2221": 'angmsd',
+	      "\u2222": 'angsph',
+	      "\u2223": 'mid',
+	      "\u2224": 'nmid',
+	      "\u2225": 'par',
+	      "\u2226": 'npar',
+	      "\u2227": 'and',
+	      "\u2228": 'or',
+	      "\u2229": 'cap',
+	      "\u2229\uFE00": 'caps',
+	      "\u222A": 'cup',
+	      "\u222A\uFE00": 'cups',
+	      "\u222B": 'int',
+	      "\u222C": 'Int',
+	      "\u222D": 'tint',
+	      "\u2A0C": 'qint',
+	      "\u222E": 'oint',
+	      "\u222F": 'Conint',
+	      "\u2230": 'Cconint',
+	      "\u2231": 'cwint',
+	      "\u2232": 'cwconint',
+	      "\u2233": 'awconint',
+	      "\u2234": 'there4',
+	      "\u2235": 'becaus',
+	      "\u2236": 'ratio',
+	      "\u2237": 'Colon',
+	      "\u2238": 'minusd',
+	      "\u223A": 'mDDot',
+	      "\u223B": 'homtht',
+	      "\u223C": 'sim',
+	      "\u2241": 'nsim',
+	      "\u223C\u20D2": 'nvsim',
+	      "\u223D": 'bsim',
+	      "\u223D\u0331": 'race',
+	      "\u223E": 'ac',
+	      "\u223E\u0333": 'acE',
+	      "\u223F": 'acd',
+	      "\u2240": 'wr',
+	      "\u2242": 'esim',
+	      "\u2242\u0338": 'nesim',
+	      "\u2243": 'sime',
+	      "\u2244": 'nsime',
+	      "\u2245": 'cong',
+	      "\u2247": 'ncong',
+	      "\u2246": 'simne',
+	      "\u2248": 'ap',
+	      "\u2249": 'nap',
+	      "\u224A": 'ape',
+	      "\u224B": 'apid',
+	      "\u224B\u0338": 'napid',
+	      "\u224C": 'bcong',
+	      "\u224D": 'CupCap',
+	      "\u226D": 'NotCupCap',
+	      "\u224D\u20D2": 'nvap',
+	      "\u224E": 'bump',
+	      "\u224E\u0338": 'nbump',
+	      "\u224F": 'bumpe',
+	      "\u224F\u0338": 'nbumpe',
+	      "\u2250": 'doteq',
+	      "\u2250\u0338": 'nedot',
+	      "\u2251": 'eDot',
+	      "\u2252": 'efDot',
+	      "\u2253": 'erDot',
+	      "\u2254": 'colone',
+	      "\u2255": 'ecolon',
+	      "\u2256": 'ecir',
+	      "\u2257": 'cire',
+	      "\u2259": 'wedgeq',
+	      "\u225A": 'veeeq',
+	      "\u225C": 'trie',
+	      "\u225F": 'equest',
+	      "\u2261": 'equiv',
+	      "\u2262": 'nequiv',
+	      "\u2261\u20E5": 'bnequiv',
+	      "\u2264": 'le',
+	      "\u2270": 'nle',
+	      "\u2264\u20D2": 'nvle',
+	      "\u2265": 'ge',
+	      "\u2271": 'nge',
+	      "\u2265\u20D2": 'nvge',
+	      "\u2266": 'lE',
+	      "\u2266\u0338": 'nlE',
+	      "\u2267": 'gE',
+	      "\u2267\u0338": 'ngE',
+	      "\u2268\uFE00": 'lvnE',
+	      "\u2268": 'lnE',
+	      "\u2269": 'gnE',
+	      "\u2269\uFE00": 'gvnE',
+	      "\u226A": 'll',
+	      "\u226A\u0338": 'nLtv',
+	      "\u226A\u20D2": 'nLt',
+	      "\u226B": 'gg',
+	      "\u226B\u0338": 'nGtv',
+	      "\u226B\u20D2": 'nGt',
+	      "\u226C": 'twixt',
+	      "\u2272": 'lsim',
+	      "\u2274": 'nlsim',
+	      "\u2273": 'gsim',
+	      "\u2275": 'ngsim',
+	      "\u2276": 'lg',
+	      "\u2278": 'ntlg',
+	      "\u2277": 'gl',
+	      "\u2279": 'ntgl',
+	      "\u227A": 'pr',
+	      "\u2280": 'npr',
+	      "\u227B": 'sc',
+	      "\u2281": 'nsc',
+	      "\u227C": 'prcue',
+	      "\u22E0": 'nprcue',
+	      "\u227D": 'sccue',
+	      "\u22E1": 'nsccue',
+	      "\u227E": 'prsim',
+	      "\u227F": 'scsim',
+	      "\u227F\u0338": 'NotSucceedsTilde',
+	      "\u2282": 'sub',
+	      "\u2284": 'nsub',
+	      "\u2282\u20D2": 'vnsub',
+	      "\u2283": 'sup',
+	      "\u2285": 'nsup',
+	      "\u2283\u20D2": 'vnsup',
+	      "\u2286": 'sube',
+	      "\u2288": 'nsube',
+	      "\u2287": 'supe',
+	      "\u2289": 'nsupe',
+	      "\u228A\uFE00": 'vsubne',
+	      "\u228A": 'subne',
+	      "\u228B\uFE00": 'vsupne',
+	      "\u228B": 'supne',
+	      "\u228D": 'cupdot',
+	      "\u228E": 'uplus',
+	      "\u228F": 'sqsub',
+	      "\u228F\u0338": 'NotSquareSubset',
+	      "\u2290": 'sqsup',
+	      "\u2290\u0338": 'NotSquareSuperset',
+	      "\u2291": 'sqsube',
+	      "\u22E2": 'nsqsube',
+	      "\u2292": 'sqsupe',
+	      "\u22E3": 'nsqsupe',
+	      "\u2293": 'sqcap',
+	      "\u2293\uFE00": 'sqcaps',
+	      "\u2294": 'sqcup',
+	      "\u2294\uFE00": 'sqcups',
+	      "\u2295": 'oplus',
+	      "\u2296": 'ominus',
+	      "\u2297": 'otimes',
+	      "\u2298": 'osol',
+	      "\u2299": 'odot',
+	      "\u229A": 'ocir',
+	      "\u229B": 'oast',
+	      "\u229D": 'odash',
+	      "\u229E": 'plusb',
+	      "\u229F": 'minusb',
+	      "\u22A0": 'timesb',
+	      "\u22A1": 'sdotb',
+	      "\u22A2": 'vdash',
+	      "\u22AC": 'nvdash',
+	      "\u22A3": 'dashv',
+	      "\u22A4": 'top',
+	      "\u22A5": 'bot',
+	      "\u22A7": 'models',
+	      "\u22A8": 'vDash',
+	      "\u22AD": 'nvDash',
+	      "\u22A9": 'Vdash',
+	      "\u22AE": 'nVdash',
+	      "\u22AA": 'Vvdash',
+	      "\u22AB": 'VDash',
+	      "\u22AF": 'nVDash',
+	      "\u22B0": 'prurel',
+	      "\u22B2": 'vltri',
+	      "\u22EA": 'nltri',
+	      "\u22B3": 'vrtri',
+	      "\u22EB": 'nrtri',
+	      "\u22B4": 'ltrie',
+	      "\u22EC": 'nltrie',
+	      "\u22B4\u20D2": 'nvltrie',
+	      "\u22B5": 'rtrie',
+	      "\u22ED": 'nrtrie',
+	      "\u22B5\u20D2": 'nvrtrie',
+	      "\u22B6": 'origof',
+	      "\u22B7": 'imof',
+	      "\u22B8": 'mumap',
+	      "\u22B9": 'hercon',
+	      "\u22BA": 'intcal',
+	      "\u22BB": 'veebar',
+	      "\u22BD": 'barvee',
+	      "\u22BE": 'angrtvb',
+	      "\u22BF": 'lrtri',
+	      "\u22C0": 'Wedge',
+	      "\u22C1": 'Vee',
+	      "\u22C2": 'xcap',
+	      "\u22C3": 'xcup',
+	      "\u22C4": 'diam',
+	      "\u22C5": 'sdot',
+	      "\u22C6": 'Star',
+	      "\u22C7": 'divonx',
+	      "\u22C8": 'bowtie',
+	      "\u22C9": 'ltimes',
+	      "\u22CA": 'rtimes',
+	      "\u22CB": 'lthree',
+	      "\u22CC": 'rthree',
+	      "\u22CD": 'bsime',
+	      "\u22CE": 'cuvee',
+	      "\u22CF": 'cuwed',
+	      "\u22D0": 'Sub',
+	      "\u22D1": 'Sup',
+	      "\u22D2": 'Cap',
+	      "\u22D3": 'Cup',
+	      "\u22D4": 'fork',
+	      "\u22D5": 'epar',
+	      "\u22D6": 'ltdot',
+	      "\u22D7": 'gtdot',
+	      "\u22D8": 'Ll',
+	      "\u22D8\u0338": 'nLl',
+	      "\u22D9": 'Gg',
+	      "\u22D9\u0338": 'nGg',
+	      "\u22DA\uFE00": 'lesg',
+	      "\u22DA": 'leg',
+	      "\u22DB": 'gel',
+	      "\u22DB\uFE00": 'gesl',
+	      "\u22DE": 'cuepr',
+	      "\u22DF": 'cuesc',
+	      "\u22E6": 'lnsim',
+	      "\u22E7": 'gnsim',
+	      "\u22E8": 'prnsim',
+	      "\u22E9": 'scnsim',
+	      "\u22EE": 'vellip',
+	      "\u22EF": 'ctdot',
+	      "\u22F0": 'utdot',
+	      "\u22F1": 'dtdot',
+	      "\u22F2": 'disin',
+	      "\u22F3": 'isinsv',
+	      "\u22F4": 'isins',
+	      "\u22F5": 'isindot',
+	      "\u22F5\u0338": 'notindot',
+	      "\u22F6": 'notinvc',
+	      "\u22F7": 'notinvb',
+	      "\u22F9": 'isinE',
+	      "\u22F9\u0338": 'notinE',
+	      "\u22FA": 'nisd',
+	      "\u22FB": 'xnis',
+	      "\u22FC": 'nis',
+	      "\u22FD": 'notnivc',
+	      "\u22FE": 'notnivb',
+	      "\u2305": 'barwed',
+	      "\u2306": 'Barwed',
+	      "\u230C": 'drcrop',
+	      "\u230D": 'dlcrop',
+	      "\u230E": 'urcrop',
+	      "\u230F": 'ulcrop',
+	      "\u2310": 'bnot',
+	      "\u2312": 'profline',
+	      "\u2313": 'profsurf',
+	      "\u2315": 'telrec',
+	      "\u2316": 'target',
+	      "\u231C": 'ulcorn',
+	      "\u231D": 'urcorn',
+	      "\u231E": 'dlcorn',
+	      "\u231F": 'drcorn',
+	      "\u2322": 'frown',
+	      "\u2323": 'smile',
+	      "\u232D": 'cylcty',
+	      "\u232E": 'profalar',
+	      "\u2336": 'topbot',
+	      "\u233D": 'ovbar',
+	      "\u233F": 'solbar',
+	      "\u237C": 'angzarr',
+	      "\u23B0": 'lmoust',
+	      "\u23B1": 'rmoust',
+	      "\u23B4": 'tbrk',
+	      "\u23B5": 'bbrk',
+	      "\u23B6": 'bbrktbrk',
+	      "\u23DC": 'OverParenthesis',
+	      "\u23DD": 'UnderParenthesis',
+	      "\u23DE": 'OverBrace',
+	      "\u23DF": 'UnderBrace',
+	      "\u23E2": 'trpezium',
+	      "\u23E7": 'elinters',
+	      "\u2423": 'blank',
+	      "\u2500": 'boxh',
+	      "\u2502": 'boxv',
+	      "\u250C": 'boxdr',
+	      "\u2510": 'boxdl',
+	      "\u2514": 'boxur',
+	      "\u2518": 'boxul',
+	      "\u251C": 'boxvr',
+	      "\u2524": 'boxvl',
+	      "\u252C": 'boxhd',
+	      "\u2534": 'boxhu',
+	      "\u253C": 'boxvh',
+	      "\u2550": 'boxH',
+	      "\u2551": 'boxV',
+	      "\u2552": 'boxdR',
+	      "\u2553": 'boxDr',
+	      "\u2554": 'boxDR',
+	      "\u2555": 'boxdL',
+	      "\u2556": 'boxDl',
+	      "\u2557": 'boxDL',
+	      "\u2558": 'boxuR',
+	      "\u2559": 'boxUr',
+	      "\u255A": 'boxUR',
+	      "\u255B": 'boxuL',
+	      "\u255C": 'boxUl',
+	      "\u255D": 'boxUL',
+	      "\u255E": 'boxvR',
+	      "\u255F": 'boxVr',
+	      "\u2560": 'boxVR',
+	      "\u2561": 'boxvL',
+	      "\u2562": 'boxVl',
+	      "\u2563": 'boxVL',
+	      "\u2564": 'boxHd',
+	      "\u2565": 'boxhD',
+	      "\u2566": 'boxHD',
+	      "\u2567": 'boxHu',
+	      "\u2568": 'boxhU',
+	      "\u2569": 'boxHU',
+	      "\u256A": 'boxvH',
+	      "\u256B": 'boxVh',
+	      "\u256C": 'boxVH',
+	      "\u2580": 'uhblk',
+	      "\u2584": 'lhblk',
+	      "\u2588": 'block',
+	      "\u2591": 'blk14',
+	      "\u2592": 'blk12',
+	      "\u2593": 'blk34',
+	      "\u25A1": 'squ',
+	      "\u25AA": 'squf',
+	      "\u25AB": 'EmptyVerySmallSquare',
+	      "\u25AD": 'rect',
+	      "\u25AE": 'marker',
+	      "\u25B1": 'fltns',
+	      "\u25B3": 'xutri',
+	      "\u25B4": 'utrif',
+	      "\u25B5": 'utri',
+	      "\u25B8": 'rtrif',
+	      "\u25B9": 'rtri',
+	      "\u25BD": 'xdtri',
+	      "\u25BE": 'dtrif',
+	      "\u25BF": 'dtri',
+	      "\u25C2": 'ltrif',
+	      "\u25C3": 'ltri',
+	      "\u25CA": 'loz',
+	      "\u25CB": 'cir',
+	      "\u25EC": 'tridot',
+	      "\u25EF": 'xcirc',
+	      "\u25F8": 'ultri',
+	      "\u25F9": 'urtri',
+	      "\u25FA": 'lltri',
+	      "\u25FB": 'EmptySmallSquare',
+	      "\u25FC": 'FilledSmallSquare',
+	      "\u2605": 'starf',
+	      "\u2606": 'star',
+	      "\u260E": 'phone',
+	      "\u2640": 'female',
+	      "\u2642": 'male',
+	      "\u2660": 'spades',
+	      "\u2663": 'clubs',
+	      "\u2665": 'hearts',
+	      "\u2666": 'diams',
+	      "\u266A": 'sung',
+	      "\u2713": 'check',
+	      "\u2717": 'cross',
+	      "\u2720": 'malt',
+	      "\u2736": 'sext',
+	      "\u2758": 'VerticalSeparator',
+	      "\u27C8": 'bsolhsub',
+	      "\u27C9": 'suphsol',
+	      "\u27F5": 'xlarr',
+	      "\u27F6": 'xrarr',
+	      "\u27F7": 'xharr',
+	      "\u27F8": 'xlArr',
+	      "\u27F9": 'xrArr',
+	      "\u27FA": 'xhArr',
+	      "\u27FC": 'xmap',
+	      "\u27FF": 'dzigrarr',
+	      "\u2902": 'nvlArr',
+	      "\u2903": 'nvrArr',
+	      "\u2904": 'nvHarr',
+	      "\u2905": 'Map',
+	      "\u290C": 'lbarr',
+	      "\u290D": 'rbarr',
+	      "\u290E": 'lBarr',
+	      "\u290F": 'rBarr',
+	      "\u2910": 'RBarr',
+	      "\u2911": 'DDotrahd',
+	      "\u2912": 'UpArrowBar',
+	      "\u2913": 'DownArrowBar',
+	      "\u2916": 'Rarrtl',
+	      "\u2919": 'latail',
+	      "\u291A": 'ratail',
+	      "\u291B": 'lAtail',
+	      "\u291C": 'rAtail',
+	      "\u291D": 'larrfs',
+	      "\u291E": 'rarrfs',
+	      "\u291F": 'larrbfs',
+	      "\u2920": 'rarrbfs',
+	      "\u2923": 'nwarhk',
+	      "\u2924": 'nearhk',
+	      "\u2925": 'searhk',
+	      "\u2926": 'swarhk',
+	      "\u2927": 'nwnear',
+	      "\u2928": 'toea',
+	      "\u2929": 'tosa',
+	      "\u292A": 'swnwar',
+	      "\u2933": 'rarrc',
+	      "\u2933\u0338": 'nrarrc',
+	      "\u2935": 'cudarrr',
+	      "\u2936": 'ldca',
+	      "\u2937": 'rdca',
+	      "\u2938": 'cudarrl',
+	      "\u2939": 'larrpl',
+	      "\u293C": 'curarrm',
+	      "\u293D": 'cularrp',
+	      "\u2945": 'rarrpl',
+	      "\u2948": 'harrcir',
+	      "\u2949": 'Uarrocir',
+	      "\u294A": 'lurdshar',
+	      "\u294B": 'ldrushar',
+	      "\u294E": 'LeftRightVector',
+	      "\u294F": 'RightUpDownVector',
+	      "\u2950": 'DownLeftRightVector',
+	      "\u2951": 'LeftUpDownVector',
+	      "\u2952": 'LeftVectorBar',
+	      "\u2953": 'RightVectorBar',
+	      "\u2954": 'RightUpVectorBar',
+	      "\u2955": 'RightDownVectorBar',
+	      "\u2956": 'DownLeftVectorBar',
+	      "\u2957": 'DownRightVectorBar',
+	      "\u2958": 'LeftUpVectorBar',
+	      "\u2959": 'LeftDownVectorBar',
+	      "\u295A": 'LeftTeeVector',
+	      "\u295B": 'RightTeeVector',
+	      "\u295C": 'RightUpTeeVector',
+	      "\u295D": 'RightDownTeeVector',
+	      "\u295E": 'DownLeftTeeVector',
+	      "\u295F": 'DownRightTeeVector',
+	      "\u2960": 'LeftUpTeeVector',
+	      "\u2961": 'LeftDownTeeVector',
+	      "\u2962": 'lHar',
+	      "\u2963": 'uHar',
+	      "\u2964": 'rHar',
+	      "\u2965": 'dHar',
+	      "\u2966": 'luruhar',
+	      "\u2967": 'ldrdhar',
+	      "\u2968": 'ruluhar',
+	      "\u2969": 'rdldhar',
+	      "\u296A": 'lharul',
+	      "\u296B": 'llhard',
+	      "\u296C": 'rharul',
+	      "\u296D": 'lrhard',
+	      "\u296E": 'udhar',
+	      "\u296F": 'duhar',
+	      "\u2970": 'RoundImplies',
+	      "\u2971": 'erarr',
+	      "\u2972": 'simrarr',
+	      "\u2973": 'larrsim',
+	      "\u2974": 'rarrsim',
+	      "\u2975": 'rarrap',
+	      "\u2976": 'ltlarr',
+	      "\u2978": 'gtrarr',
+	      "\u2979": 'subrarr',
+	      "\u297B": 'suplarr',
+	      "\u297C": 'lfisht',
+	      "\u297D": 'rfisht',
+	      "\u297E": 'ufisht',
+	      "\u297F": 'dfisht',
+	      "\u299A": 'vzigzag',
+	      "\u299C": 'vangrt',
+	      "\u299D": 'angrtvbd',
+	      "\u29A4": 'ange',
+	      "\u29A5": 'range',
+	      "\u29A6": 'dwangle',
+	      "\u29A7": 'uwangle',
+	      "\u29A8": 'angmsdaa',
+	      "\u29A9": 'angmsdab',
+	      "\u29AA": 'angmsdac',
+	      "\u29AB": 'angmsdad',
+	      "\u29AC": 'angmsdae',
+	      "\u29AD": 'angmsdaf',
+	      "\u29AE": 'angmsdag',
+	      "\u29AF": 'angmsdah',
+	      "\u29B0": 'bemptyv',
+	      "\u29B1": 'demptyv',
+	      "\u29B2": 'cemptyv',
+	      "\u29B3": 'raemptyv',
+	      "\u29B4": 'laemptyv',
+	      "\u29B5": 'ohbar',
+	      "\u29B6": 'omid',
+	      "\u29B7": 'opar',
+	      "\u29B9": 'operp',
+	      "\u29BB": 'olcross',
+	      "\u29BC": 'odsold',
+	      "\u29BE": 'olcir',
+	      "\u29BF": 'ofcir',
+	      "\u29C0": 'olt',
+	      "\u29C1": 'ogt',
+	      "\u29C2": 'cirscir',
+	      "\u29C3": 'cirE',
+	      "\u29C4": 'solb',
+	      "\u29C5": 'bsolb',
+	      "\u29C9": 'boxbox',
+	      "\u29CD": 'trisb',
+	      "\u29CE": 'rtriltri',
+	      "\u29CF": 'LeftTriangleBar',
+	      "\u29CF\u0338": 'NotLeftTriangleBar',
+	      "\u29D0": 'RightTriangleBar',
+	      "\u29D0\u0338": 'NotRightTriangleBar',
+	      "\u29DC": 'iinfin',
+	      "\u29DD": 'infintie',
+	      "\u29DE": 'nvinfin',
+	      "\u29E3": 'eparsl',
+	      "\u29E4": 'smeparsl',
+	      "\u29E5": 'eqvparsl',
+	      "\u29EB": 'lozf',
+	      "\u29F4": 'RuleDelayed',
+	      "\u29F6": 'dsol',
+	      "\u2A00": 'xodot',
+	      "\u2A01": 'xoplus',
+	      "\u2A02": 'xotime',
+	      "\u2A04": 'xuplus',
+	      "\u2A06": 'xsqcup',
+	      "\u2A0D": 'fpartint',
+	      "\u2A10": 'cirfnint',
+	      "\u2A11": 'awint',
+	      "\u2A12": 'rppolint',
+	      "\u2A13": 'scpolint',
+	      "\u2A14": 'npolint',
+	      "\u2A15": 'pointint',
+	      "\u2A16": 'quatint',
+	      "\u2A17": 'intlarhk',
+	      "\u2A22": 'pluscir',
+	      "\u2A23": 'plusacir',
+	      "\u2A24": 'simplus',
+	      "\u2A25": 'plusdu',
+	      "\u2A26": 'plussim',
+	      "\u2A27": 'plustwo',
+	      "\u2A29": 'mcomma',
+	      "\u2A2A": 'minusdu',
+	      "\u2A2D": 'loplus',
+	      "\u2A2E": 'roplus',
+	      "\u2A2F": 'Cross',
+	      "\u2A30": 'timesd',
+	      "\u2A31": 'timesbar',
+	      "\u2A33": 'smashp',
+	      "\u2A34": 'lotimes',
+	      "\u2A35": 'rotimes',
+	      "\u2A36": 'otimesas',
+	      "\u2A37": 'Otimes',
+	      "\u2A38": 'odiv',
+	      "\u2A39": 'triplus',
+	      "\u2A3A": 'triminus',
+	      "\u2A3B": 'tritime',
+	      "\u2A3C": 'iprod',
+	      "\u2A3F": 'amalg',
+	      "\u2A40": 'capdot',
+	      "\u2A42": 'ncup',
+	      "\u2A43": 'ncap',
+	      "\u2A44": 'capand',
+	      "\u2A45": 'cupor',
+	      "\u2A46": 'cupcap',
+	      "\u2A47": 'capcup',
+	      "\u2A48": 'cupbrcap',
+	      "\u2A49": 'capbrcup',
+	      "\u2A4A": 'cupcup',
+	      "\u2A4B": 'capcap',
+	      "\u2A4C": 'ccups',
+	      "\u2A4D": 'ccaps',
+	      "\u2A50": 'ccupssm',
+	      "\u2A53": 'And',
+	      "\u2A54": 'Or',
+	      "\u2A55": 'andand',
+	      "\u2A56": 'oror',
+	      "\u2A57": 'orslope',
+	      "\u2A58": 'andslope',
+	      "\u2A5A": 'andv',
+	      "\u2A5B": 'orv',
+	      "\u2A5C": 'andd',
+	      "\u2A5D": 'ord',
+	      "\u2A5F": 'wedbar',
+	      "\u2A66": 'sdote',
+	      "\u2A6A": 'simdot',
+	      "\u2A6D": 'congdot',
+	      "\u2A6D\u0338": 'ncongdot',
+	      "\u2A6E": 'easter',
+	      "\u2A6F": 'apacir',
+	      "\u2A70": 'apE',
+	      "\u2A70\u0338": 'napE',
+	      "\u2A71": 'eplus',
+	      "\u2A72": 'pluse',
+	      "\u2A73": 'Esim',
+	      "\u2A77": 'eDDot',
+	      "\u2A78": 'equivDD',
+	      "\u2A79": 'ltcir',
+	      "\u2A7A": 'gtcir',
+	      "\u2A7B": 'ltquest',
+	      "\u2A7C": 'gtquest',
+	      "\u2A7D": 'les',
+	      "\u2A7D\u0338": 'nles',
+	      "\u2A7E": 'ges',
+	      "\u2A7E\u0338": 'nges',
+	      "\u2A7F": 'lesdot',
+	      "\u2A80": 'gesdot',
+	      "\u2A81": 'lesdoto',
+	      "\u2A82": 'gesdoto',
+	      "\u2A83": 'lesdotor',
+	      "\u2A84": 'gesdotol',
+	      "\u2A85": 'lap',
+	      "\u2A86": 'gap',
+	      "\u2A87": 'lne',
+	      "\u2A88": 'gne',
+	      "\u2A89": 'lnap',
+	      "\u2A8A": 'gnap',
+	      "\u2A8B": 'lEg',
+	      "\u2A8C": 'gEl',
+	      "\u2A8D": 'lsime',
+	      "\u2A8E": 'gsime',
+	      "\u2A8F": 'lsimg',
+	      "\u2A90": 'gsiml',
+	      "\u2A91": 'lgE',
+	      "\u2A92": 'glE',
+	      "\u2A93": 'lesges',
+	      "\u2A94": 'gesles',
+	      "\u2A95": 'els',
+	      "\u2A96": 'egs',
+	      "\u2A97": 'elsdot',
+	      "\u2A98": 'egsdot',
+	      "\u2A99": 'el',
+	      "\u2A9A": 'eg',
+	      "\u2A9D": 'siml',
+	      "\u2A9E": 'simg',
+	      "\u2A9F": 'simlE',
+	      "\u2AA0": 'simgE',
+	      "\u2AA1": 'LessLess',
+	      "\u2AA1\u0338": 'NotNestedLessLess',
+	      "\u2AA2": 'GreaterGreater',
+	      "\u2AA2\u0338": 'NotNestedGreaterGreater',
+	      "\u2AA4": 'glj',
+	      "\u2AA5": 'gla',
+	      "\u2AA6": 'ltcc',
+	      "\u2AA7": 'gtcc',
+	      "\u2AA8": 'lescc',
+	      "\u2AA9": 'gescc',
+	      "\u2AAA": 'smt',
+	      "\u2AAB": 'lat',
+	      "\u2AAC": 'smte',
+	      "\u2AAC\uFE00": 'smtes',
+	      "\u2AAD": 'late',
+	      "\u2AAD\uFE00": 'lates',
+	      "\u2AAE": 'bumpE',
+	      "\u2AAF": 'pre',
+	      "\u2AAF\u0338": 'npre',
+	      "\u2AB0": 'sce',
+	      "\u2AB0\u0338": 'nsce',
+	      "\u2AB3": 'prE',
+	      "\u2AB4": 'scE',
+	      "\u2AB5": 'prnE',
+	      "\u2AB6": 'scnE',
+	      "\u2AB7": 'prap',
+	      "\u2AB8": 'scap',
+	      "\u2AB9": 'prnap',
+	      "\u2ABA": 'scnap',
+	      "\u2ABB": 'Pr',
+	      "\u2ABC": 'Sc',
+	      "\u2ABD": 'subdot',
+	      "\u2ABE": 'supdot',
+	      "\u2ABF": 'subplus',
+	      "\u2AC0": 'supplus',
+	      "\u2AC1": 'submult',
+	      "\u2AC2": 'supmult',
+	      "\u2AC3": 'subedot',
+	      "\u2AC4": 'supedot',
+	      "\u2AC5": 'subE',
+	      "\u2AC5\u0338": 'nsubE',
+	      "\u2AC6": 'supE',
+	      "\u2AC6\u0338": 'nsupE',
+	      "\u2AC7": 'subsim',
+	      "\u2AC8": 'supsim',
+	      "\u2ACB\uFE00": 'vsubnE',
+	      "\u2ACB": 'subnE',
+	      "\u2ACC\uFE00": 'vsupnE',
+	      "\u2ACC": 'supnE',
+	      "\u2ACF": 'csub',
+	      "\u2AD0": 'csup',
+	      "\u2AD1": 'csube',
+	      "\u2AD2": 'csupe',
+	      "\u2AD3": 'subsup',
+	      "\u2AD4": 'supsub',
+	      "\u2AD5": 'subsub',
+	      "\u2AD6": 'supsup',
+	      "\u2AD7": 'suphsub',
+	      "\u2AD8": 'supdsub',
+	      "\u2AD9": 'forkv',
+	      "\u2ADA": 'topfork',
+	      "\u2ADB": 'mlcp',
+	      "\u2AE4": 'Dashv',
+	      "\u2AE6": 'Vdashl',
+	      "\u2AE7": 'Barv',
+	      "\u2AE8": 'vBar',
+	      "\u2AE9": 'vBarv',
+	      "\u2AEB": 'Vbar',
+	      "\u2AEC": 'Not',
+	      "\u2AED": 'bNot',
+	      "\u2AEE": 'rnmid',
+	      "\u2AEF": 'cirmid',
+	      "\u2AF0": 'midcir',
+	      "\u2AF1": 'topcir',
+	      "\u2AF2": 'nhpar',
+	      "\u2AF3": 'parsim',
+	      "\u2AFD": 'parsl',
+	      "\u2AFD\u20E5": 'nparsl',
+	      "\u266D": 'flat',
+	      "\u266E": 'natur',
+	      "\u266F": 'sharp',
+	      '\xA4': 'curren',
+	      '\xA2': 'cent',
+	      '$': 'dollar',
+	      '\xA3': 'pound',
+	      '\xA5': 'yen',
+	      "\u20AC": 'euro',
+	      '\xB9': 'sup1',
+	      '\xBD': 'half',
+	      "\u2153": 'frac13',
+	      '\xBC': 'frac14',
+	      "\u2155": 'frac15',
+	      "\u2159": 'frac16',
+	      "\u215B": 'frac18',
+	      '\xB2': 'sup2',
+	      "\u2154": 'frac23',
+	      "\u2156": 'frac25',
+	      '\xB3': 'sup3',
+	      '\xBE': 'frac34',
+	      "\u2157": 'frac35',
+	      "\u215C": 'frac38',
+	      "\u2158": 'frac45',
+	      "\u215A": 'frac56',
+	      "\u215D": 'frac58',
+	      "\u215E": 'frac78',
+	      "\uD835\uDCB6": 'ascr',
+	      "\uD835\uDD52": 'aopf',
+	      "\uD835\uDD1E": 'afr',
+	      "\uD835\uDD38": 'Aopf',
+	      "\uD835\uDD04": 'Afr',
+	      "\uD835\uDC9C": 'Ascr',
+	      '\xAA': 'ordf',
+	      '\xE1': 'aacute',
+	      '\xC1': 'Aacute',
+	      '\xE0': 'agrave',
+	      '\xC0': 'Agrave',
+	      "\u0103": 'abreve',
+	      "\u0102": 'Abreve',
+	      '\xE2': 'acirc',
+	      '\xC2': 'Acirc',
+	      '\xE5': 'aring',
+	      '\xC5': 'angst',
+	      '\xE4': 'auml',
+	      '\xC4': 'Auml',
+	      '\xE3': 'atilde',
+	      '\xC3': 'Atilde',
+	      "\u0105": 'aogon',
+	      "\u0104": 'Aogon',
+	      "\u0101": 'amacr',
+	      "\u0100": 'Amacr',
+	      '\xE6': 'aelig',
+	      '\xC6': 'AElig',
+	      "\uD835\uDCB7": 'bscr',
+	      "\uD835\uDD53": 'bopf',
+	      "\uD835\uDD1F": 'bfr',
+	      "\uD835\uDD39": 'Bopf',
+	      "\u212C": 'Bscr',
+	      "\uD835\uDD05": 'Bfr',
+	      "\uD835\uDD20": 'cfr',
+	      "\uD835\uDCB8": 'cscr',
+	      "\uD835\uDD54": 'copf',
+	      "\u212D": 'Cfr',
+	      "\uD835\uDC9E": 'Cscr',
+	      "\u2102": 'Copf',
+	      "\u0107": 'cacute',
+	      "\u0106": 'Cacute',
+	      "\u0109": 'ccirc',
+	      "\u0108": 'Ccirc',
+	      "\u010D": 'ccaron',
+	      "\u010C": 'Ccaron',
+	      "\u010B": 'cdot',
+	      "\u010A": 'Cdot',
+	      '\xE7': 'ccedil',
+	      '\xC7': 'Ccedil',
+	      "\u2105": 'incare',
+	      "\uD835\uDD21": 'dfr',
+	      "\u2146": 'dd',
+	      "\uD835\uDD55": 'dopf',
+	      "\uD835\uDCB9": 'dscr',
+	      "\uD835\uDC9F": 'Dscr',
+	      "\uD835\uDD07": 'Dfr',
+	      "\u2145": 'DD',
+	      "\uD835\uDD3B": 'Dopf',
+	      "\u010F": 'dcaron',
+	      "\u010E": 'Dcaron',
+	      "\u0111": 'dstrok',
+	      "\u0110": 'Dstrok',
+	      '\xF0': 'eth',
+	      '\xD0': 'ETH',
+	      "\u2147": 'ee',
+	      "\u212F": 'escr',
+	      "\uD835\uDD22": 'efr',
+	      "\uD835\uDD56": 'eopf',
+	      "\u2130": 'Escr',
+	      "\uD835\uDD08": 'Efr',
+	      "\uD835\uDD3C": 'Eopf',
+	      '\xE9': 'eacute',
+	      '\xC9': 'Eacute',
+	      '\xE8': 'egrave',
+	      '\xC8': 'Egrave',
+	      '\xEA': 'ecirc',
+	      '\xCA': 'Ecirc',
+	      "\u011B": 'ecaron',
+	      "\u011A": 'Ecaron',
+	      '\xEB': 'euml',
+	      '\xCB': 'Euml',
+	      "\u0117": 'edot',
+	      "\u0116": 'Edot',
+	      "\u0119": 'eogon',
+	      "\u0118": 'Eogon',
+	      "\u0113": 'emacr',
+	      "\u0112": 'Emacr',
+	      "\uD835\uDD23": 'ffr',
+	      "\uD835\uDD57": 'fopf',
+	      "\uD835\uDCBB": 'fscr',
+	      "\uD835\uDD09": 'Ffr',
+	      "\uD835\uDD3D": 'Fopf',
+	      "\u2131": 'Fscr',
+	      "\uFB00": 'fflig',
+	      "\uFB03": 'ffilig',
+	      "\uFB04": 'ffllig',
+	      "\uFB01": 'filig',
+	      'fj': 'fjlig',
+	      "\uFB02": 'fllig',
+	      "\u0192": 'fnof',
+	      "\u210A": 'gscr',
+	      "\uD835\uDD58": 'gopf',
+	      "\uD835\uDD24": 'gfr',
+	      "\uD835\uDCA2": 'Gscr',
+	      "\uD835\uDD3E": 'Gopf',
+	      "\uD835\uDD0A": 'Gfr',
+	      "\u01F5": 'gacute',
+	      "\u011F": 'gbreve',
+	      "\u011E": 'Gbreve',
+	      "\u011D": 'gcirc',
+	      "\u011C": 'Gcirc',
+	      "\u0121": 'gdot',
+	      "\u0120": 'Gdot',
+	      "\u0122": 'Gcedil',
+	      "\uD835\uDD25": 'hfr',
+	      "\u210E": 'planckh',
+	      "\uD835\uDCBD": 'hscr',
+	      "\uD835\uDD59": 'hopf',
+	      "\u210B": 'Hscr',
+	      "\u210C": 'Hfr',
+	      "\u210D": 'Hopf',
+	      "\u0125": 'hcirc',
+	      "\u0124": 'Hcirc',
+	      "\u210F": 'hbar',
+	      "\u0127": 'hstrok',
+	      "\u0126": 'Hstrok',
+	      "\uD835\uDD5A": 'iopf',
+	      "\uD835\uDD26": 'ifr',
+	      "\uD835\uDCBE": 'iscr',
+	      "\u2148": 'ii',
+	      "\uD835\uDD40": 'Iopf',
+	      "\u2110": 'Iscr',
+	      "\u2111": 'Im',
+	      '\xED': 'iacute',
+	      '\xCD': 'Iacute',
+	      '\xEC': 'igrave',
+	      '\xCC': 'Igrave',
+	      '\xEE': 'icirc',
+	      '\xCE': 'Icirc',
+	      '\xEF': 'iuml',
+	      '\xCF': 'Iuml',
+	      "\u0129": 'itilde',
+	      "\u0128": 'Itilde',
+	      "\u0130": 'Idot',
+	      "\u012F": 'iogon',
+	      "\u012E": 'Iogon',
+	      "\u012B": 'imacr',
+	      "\u012A": 'Imacr',
+	      "\u0133": 'ijlig',
+	      "\u0132": 'IJlig',
+	      "\u0131": 'imath',
+	      "\uD835\uDCBF": 'jscr',
+	      "\uD835\uDD5B": 'jopf',
+	      "\uD835\uDD27": 'jfr',
+	      "\uD835\uDCA5": 'Jscr',
+	      "\uD835\uDD0D": 'Jfr',
+	      "\uD835\uDD41": 'Jopf',
+	      "\u0135": 'jcirc',
+	      "\u0134": 'Jcirc',
+	      "\u0237": 'jmath',
+	      "\uD835\uDD5C": 'kopf',
+	      "\uD835\uDCC0": 'kscr',
+	      "\uD835\uDD28": 'kfr',
+	      "\uD835\uDCA6": 'Kscr',
+	      "\uD835\uDD42": 'Kopf',
+	      "\uD835\uDD0E": 'Kfr',
+	      "\u0137": 'kcedil',
+	      "\u0136": 'Kcedil',
+	      "\uD835\uDD29": 'lfr',
+	      "\uD835\uDCC1": 'lscr',
+	      "\u2113": 'ell',
+	      "\uD835\uDD5D": 'lopf',
+	      "\u2112": 'Lscr',
+	      "\uD835\uDD0F": 'Lfr',
+	      "\uD835\uDD43": 'Lopf',
+	      "\u013A": 'lacute',
+	      "\u0139": 'Lacute',
+	      "\u013E": 'lcaron',
+	      "\u013D": 'Lcaron',
+	      "\u013C": 'lcedil',
+	      "\u013B": 'Lcedil',
+	      "\u0142": 'lstrok',
+	      "\u0141": 'Lstrok',
+	      "\u0140": 'lmidot',
+	      "\u013F": 'Lmidot',
+	      "\uD835\uDD2A": 'mfr',
+	      "\uD835\uDD5E": 'mopf',
+	      "\uD835\uDCC2": 'mscr',
+	      "\uD835\uDD10": 'Mfr',
+	      "\uD835\uDD44": 'Mopf',
+	      "\u2133": 'Mscr',
+	      "\uD835\uDD2B": 'nfr',
+	      "\uD835\uDD5F": 'nopf',
+	      "\uD835\uDCC3": 'nscr',
+	      "\u2115": 'Nopf',
+	      "\uD835\uDCA9": 'Nscr',
+	      "\uD835\uDD11": 'Nfr',
+	      "\u0144": 'nacute',
+	      "\u0143": 'Nacute',
+	      "\u0148": 'ncaron',
+	      "\u0147": 'Ncaron',
+	      '\xF1': 'ntilde',
+	      '\xD1': 'Ntilde',
+	      "\u0146": 'ncedil',
+	      "\u0145": 'Ncedil',
+	      "\u2116": 'numero',
+	      "\u014B": 'eng',
+	      "\u014A": 'ENG',
+	      "\uD835\uDD60": 'oopf',
+	      "\uD835\uDD2C": 'ofr',
+	      "\u2134": 'oscr',
+	      "\uD835\uDCAA": 'Oscr',
+	      "\uD835\uDD12": 'Ofr',
+	      "\uD835\uDD46": 'Oopf',
+	      '\xBA': 'ordm',
+	      '\xF3': 'oacute',
+	      '\xD3': 'Oacute',
+	      '\xF2': 'ograve',
+	      '\xD2': 'Ograve',
+	      '\xF4': 'ocirc',
+	      '\xD4': 'Ocirc',
+	      '\xF6': 'ouml',
+	      '\xD6': 'Ouml',
+	      "\u0151": 'odblac',
+	      "\u0150": 'Odblac',
+	      '\xF5': 'otilde',
+	      '\xD5': 'Otilde',
+	      '\xF8': 'oslash',
+	      '\xD8': 'Oslash',
+	      "\u014D": 'omacr',
+	      "\u014C": 'Omacr',
+	      "\u0153": 'oelig',
+	      "\u0152": 'OElig',
+	      "\uD835\uDD2D": 'pfr',
+	      "\uD835\uDCC5": 'pscr',
+	      "\uD835\uDD61": 'popf',
+	      "\u2119": 'Popf',
+	      "\uD835\uDD13": 'Pfr',
+	      "\uD835\uDCAB": 'Pscr',
+	      "\uD835\uDD62": 'qopf',
+	      "\uD835\uDD2E": 'qfr',
+	      "\uD835\uDCC6": 'qscr',
+	      "\uD835\uDCAC": 'Qscr',
+	      "\uD835\uDD14": 'Qfr',
+	      "\u211A": 'Qopf',
+	      "\u0138": 'kgreen',
+	      "\uD835\uDD2F": 'rfr',
+	      "\uD835\uDD63": 'ropf',
+	      "\uD835\uDCC7": 'rscr',
+	      "\u211B": 'Rscr',
+	      "\u211C": 'Re',
+	      "\u211D": 'Ropf',
+	      "\u0155": 'racute',
+	      "\u0154": 'Racute',
+	      "\u0159": 'rcaron',
+	      "\u0158": 'Rcaron',
+	      "\u0157": 'rcedil',
+	      "\u0156": 'Rcedil',
+	      "\uD835\uDD64": 'sopf',
+	      "\uD835\uDCC8": 'sscr',
+	      "\uD835\uDD30": 'sfr',
+	      "\uD835\uDD4A": 'Sopf',
+	      "\uD835\uDD16": 'Sfr',
+	      "\uD835\uDCAE": 'Sscr',
+	      "\u24C8": 'oS',
+	      "\u015B": 'sacute',
+	      "\u015A": 'Sacute',
+	      "\u015D": 'scirc',
+	      "\u015C": 'Scirc',
+	      "\u0161": 'scaron',
+	      "\u0160": 'Scaron',
+	      "\u015F": 'scedil',
+	      "\u015E": 'Scedil',
+	      '\xDF': 'szlig',
+	      "\uD835\uDD31": 'tfr',
+	      "\uD835\uDCC9": 'tscr',
+	      "\uD835\uDD65": 'topf',
+	      "\uD835\uDCAF": 'Tscr',
+	      "\uD835\uDD17": 'Tfr',
+	      "\uD835\uDD4B": 'Topf',
+	      "\u0165": 'tcaron',
+	      "\u0164": 'Tcaron',
+	      "\u0163": 'tcedil',
+	      "\u0162": 'Tcedil',
+	      "\u2122": 'trade',
+	      "\u0167": 'tstrok',
+	      "\u0166": 'Tstrok',
+	      "\uD835\uDCCA": 'uscr',
+	      "\uD835\uDD66": 'uopf',
+	      "\uD835\uDD32": 'ufr',
+	      "\uD835\uDD4C": 'Uopf',
+	      "\uD835\uDD18": 'Ufr',
+	      "\uD835\uDCB0": 'Uscr',
+	      '\xFA': 'uacute',
+	      '\xDA': 'Uacute',
+	      '\xF9': 'ugrave',
+	      '\xD9': 'Ugrave',
+	      "\u016D": 'ubreve',
+	      "\u016C": 'Ubreve',
+	      '\xFB': 'ucirc',
+	      '\xDB': 'Ucirc',
+	      "\u016F": 'uring',
+	      "\u016E": 'Uring',
+	      '\xFC': 'uuml',
+	      '\xDC': 'Uuml',
+	      "\u0171": 'udblac',
+	      "\u0170": 'Udblac',
+	      "\u0169": 'utilde',
+	      "\u0168": 'Utilde',
+	      "\u0173": 'uogon',
+	      "\u0172": 'Uogon',
+	      "\u016B": 'umacr',
+	      "\u016A": 'Umacr',
+	      "\uD835\uDD33": 'vfr',
+	      "\uD835\uDD67": 'vopf',
+	      "\uD835\uDCCB": 'vscr',
+	      "\uD835\uDD19": 'Vfr',
+	      "\uD835\uDD4D": 'Vopf',
+	      "\uD835\uDCB1": 'Vscr',
+	      "\uD835\uDD68": 'wopf',
+	      "\uD835\uDCCC": 'wscr',
+	      "\uD835\uDD34": 'wfr',
+	      "\uD835\uDCB2": 'Wscr',
+	      "\uD835\uDD4E": 'Wopf',
+	      "\uD835\uDD1A": 'Wfr',
+	      "\u0175": 'wcirc',
+	      "\u0174": 'Wcirc',
+	      "\uD835\uDD35": 'xfr',
+	      "\uD835\uDCCD": 'xscr',
+	      "\uD835\uDD69": 'xopf',
+	      "\uD835\uDD4F": 'Xopf',
+	      "\uD835\uDD1B": 'Xfr',
+	      "\uD835\uDCB3": 'Xscr',
+	      "\uD835\uDD36": 'yfr',
+	      "\uD835\uDCCE": 'yscr',
+	      "\uD835\uDD6A": 'yopf',
+	      "\uD835\uDCB4": 'Yscr',
+	      "\uD835\uDD1C": 'Yfr',
+	      "\uD835\uDD50": 'Yopf',
+	      '\xFD': 'yacute',
+	      '\xDD': 'Yacute',
+	      "\u0177": 'ycirc',
+	      "\u0176": 'Ycirc',
+	      '\xFF': 'yuml',
+	      "\u0178": 'Yuml',
+	      "\uD835\uDCCF": 'zscr',
+	      "\uD835\uDD37": 'zfr',
+	      "\uD835\uDD6B": 'zopf',
+	      "\u2128": 'Zfr',
+	      "\u2124": 'Zopf',
+	      "\uD835\uDCB5": 'Zscr',
+	      "\u017A": 'zacute',
+	      "\u0179": 'Zacute',
+	      "\u017E": 'zcaron',
+	      "\u017D": 'Zcaron',
+	      "\u017C": 'zdot',
+	      "\u017B": 'Zdot',
+	      "\u01B5": 'imped',
+	      '\xFE': 'thorn',
+	      '\xDE': 'THORN',
+	      "\u0149": 'napos',
+	      "\u03B1": 'alpha',
+	      "\u0391": 'Alpha',
+	      "\u03B2": 'beta',
+	      "\u0392": 'Beta',
+	      "\u03B3": 'gamma',
+	      "\u0393": 'Gamma',
+	      "\u03B4": 'delta',
+	      "\u0394": 'Delta',
+	      "\u03B5": 'epsi',
+	      "\u03F5": 'epsiv',
+	      "\u0395": 'Epsilon',
+	      "\u03DD": 'gammad',
+	      "\u03DC": 'Gammad',
+	      "\u03B6": 'zeta',
+	      "\u0396": 'Zeta',
+	      "\u03B7": 'eta',
+	      "\u0397": 'Eta',
+	      "\u03B8": 'theta',
+	      "\u03D1": 'thetav',
+	      "\u0398": 'Theta',
+	      "\u03B9": 'iota',
+	      "\u0399": 'Iota',
+	      "\u03BA": 'kappa',
+	      "\u03F0": 'kappav',
+	      "\u039A": 'Kappa',
+	      "\u03BB": 'lambda',
+	      "\u039B": 'Lambda',
+	      "\u03BC": 'mu',
+	      '\xB5': 'micro',
+	      "\u039C": 'Mu',
+	      "\u03BD": 'nu',
+	      "\u039D": 'Nu',
+	      "\u03BE": 'xi',
+	      "\u039E": 'Xi',
+	      "\u03BF": 'omicron',
+	      "\u039F": 'Omicron',
+	      "\u03C0": 'pi',
+	      "\u03D6": 'piv',
+	      "\u03A0": 'Pi',
+	      "\u03C1": 'rho',
+	      "\u03F1": 'rhov',
+	      "\u03A1": 'Rho',
+	      "\u03C3": 'sigma',
+	      "\u03A3": 'Sigma',
+	      "\u03C2": 'sigmaf',
+	      "\u03C4": 'tau',
+	      "\u03A4": 'Tau',
+	      "\u03C5": 'upsi',
+	      "\u03A5": 'Upsilon',
+	      "\u03D2": 'Upsi',
+	      "\u03C6": 'phi',
+	      "\u03D5": 'phiv',
+	      "\u03A6": 'Phi',
+	      "\u03C7": 'chi',
+	      "\u03A7": 'Chi',
+	      "\u03C8": 'psi',
+	      "\u03A8": 'Psi',
+	      "\u03C9": 'omega',
+	      "\u03A9": 'ohm',
+	      "\u0430": 'acy',
+	      "\u0410": 'Acy',
+	      "\u0431": 'bcy',
+	      "\u0411": 'Bcy',
+	      "\u0432": 'vcy',
+	      "\u0412": 'Vcy',
+	      "\u0433": 'gcy',
+	      "\u0413": 'Gcy',
+	      "\u0453": 'gjcy',
+	      "\u0403": 'GJcy',
+	      "\u0434": 'dcy',
+	      "\u0414": 'Dcy',
+	      "\u0452": 'djcy',
+	      "\u0402": 'DJcy',
+	      "\u0435": 'iecy',
+	      "\u0415": 'IEcy',
+	      "\u0451": 'iocy',
+	      "\u0401": 'IOcy',
+	      "\u0454": 'jukcy',
+	      "\u0404": 'Jukcy',
+	      "\u0436": 'zhcy',
+	      "\u0416": 'ZHcy',
+	      "\u0437": 'zcy',
+	      "\u0417": 'Zcy',
+	      "\u0455": 'dscy',
+	      "\u0405": 'DScy',
+	      "\u0438": 'icy',
+	      "\u0418": 'Icy',
+	      "\u0456": 'iukcy',
+	      "\u0406": 'Iukcy',
+	      "\u0457": 'yicy',
+	      "\u0407": 'YIcy',
+	      "\u0439": 'jcy',
+	      "\u0419": 'Jcy',
+	      "\u0458": 'jsercy',
+	      "\u0408": 'Jsercy',
+	      "\u043A": 'kcy',
+	      "\u041A": 'Kcy',
+	      "\u045C": 'kjcy',
+	      "\u040C": 'KJcy',
+	      "\u043B": 'lcy',
+	      "\u041B": 'Lcy',
+	      "\u0459": 'ljcy',
+	      "\u0409": 'LJcy',
+	      "\u043C": 'mcy',
+	      "\u041C": 'Mcy',
+	      "\u043D": 'ncy',
+	      "\u041D": 'Ncy',
+	      "\u045A": 'njcy',
+	      "\u040A": 'NJcy',
+	      "\u043E": 'ocy',
+	      "\u041E": 'Ocy',
+	      "\u043F": 'pcy',
+	      "\u041F": 'Pcy',
+	      "\u0440": 'rcy',
+	      "\u0420": 'Rcy',
+	      "\u0441": 'scy',
+	      "\u0421": 'Scy',
+	      "\u0442": 'tcy',
+	      "\u0422": 'Tcy',
+	      "\u045B": 'tshcy',
+	      "\u040B": 'TSHcy',
+	      "\u0443": 'ucy',
+	      "\u0423": 'Ucy',
+	      "\u045E": 'ubrcy',
+	      "\u040E": 'Ubrcy',
+	      "\u0444": 'fcy',
+	      "\u0424": 'Fcy',
+	      "\u0445": 'khcy',
+	      "\u0425": 'KHcy',
+	      "\u0446": 'tscy',
+	      "\u0426": 'TScy',
+	      "\u0447": 'chcy',
+	      "\u0427": 'CHcy',
+	      "\u045F": 'dzcy',
+	      "\u040F": 'DZcy',
+	      "\u0448": 'shcy',
+	      "\u0428": 'SHcy',
+	      "\u0449": 'shchcy',
+	      "\u0429": 'SHCHcy',
+	      "\u044A": 'hardcy',
+	      "\u042A": 'HARDcy',
+	      "\u044B": 'ycy',
+	      "\u042B": 'Ycy',
+	      "\u044C": 'softcy',
+	      "\u042C": 'SOFTcy',
+	      "\u044D": 'ecy',
+	      "\u042D": 'Ecy',
+	      "\u044E": 'yucy',
+	      "\u042E": 'YUcy',
+	      "\u044F": 'yacy',
+	      "\u042F": 'YAcy',
+	      "\u2135": 'aleph',
+	      "\u2136": 'beth',
+	      "\u2137": 'gimel',
+	      "\u2138": 'daleth'
+	    };
+	    var regexEscape = /["&'<>`]/g;
+	    var escapeMap = {
+	      '"': '&quot;',
+	      '&': '&amp;',
+	      '\'': '&#x27;',
+	      '<': '&lt;',
+	      // See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
+	      // following is not strictly necessary unless it’s part of a tag or an
+	      // unquoted attribute value. We’re only escaping it to support those
+	      // situations, and for XML support.
+	      '>': '&gt;',
+	      // In Internet Explorer ≤ 8, the backtick character can be used
+	      // to break out of (un)quoted attribute values or HTML comments.
+	      // See http://html5sec.org/#102, http://html5sec.org/#108, and
+	      // http://html5sec.org/#133.
+	      '`': '&#x60;'
+	    };
+	    var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
+	    var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+	    var regexDecode = /&(CounterClockwiseContourIntegral|DoubleLongLeftRightArrow|ClockwiseContourIntegral|NotNestedGreaterGreater|NotSquareSupersetEqual|DiacriticalDoubleAcute|NotRightTriangleEqual|NotSucceedsSlantEqual|NotPrecedesSlantEqual|CloseCurlyDoubleQuote|NegativeVeryThinSpace|DoubleContourIntegral|FilledVerySmallSquare|CapitalDifferentialD|OpenCurlyDoubleQuote|EmptyVerySmallSquare|NestedGreaterGreater|DoubleLongRightArrow|NotLeftTriangleEqual|NotGreaterSlantEqual|ReverseUpEquilibrium|DoubleLeftRightArrow|NotSquareSubsetEqual|NotDoubleVerticalBar|RightArrowLeftArrow|NotGreaterFullEqual|NotRightTriangleBar|SquareSupersetEqual|DownLeftRightVector|DoubleLongLeftArrow|leftrightsquigarrow|LeftArrowRightArrow|NegativeMediumSpace|blacktriangleright|RightDownVectorBar|PrecedesSlantEqual|RightDoubleBracket|SucceedsSlantEqual|NotLeftTriangleBar|RightTriangleEqual|SquareIntersection|RightDownTeeVector|ReverseEquilibrium|NegativeThickSpace|longleftrightarrow|Longleftrightarrow|LongLeftRightArrow|DownRightTeeVector|DownRightVectorBar|GreaterSlantEqual|SquareSubsetEqual|LeftDownVectorBar|LeftDoubleBracket|VerticalSeparator|rightleftharpoons|NotGreaterGreater|NotSquareSuperset|blacktriangleleft|blacktriangledown|NegativeThinSpace|LeftDownTeeVector|NotLessSlantEqual|leftrightharpoons|DoubleUpDownArrow|DoubleVerticalBar|LeftTriangleEqual|FilledSmallSquare|twoheadrightarrow|NotNestedLessLess|DownLeftTeeVector|DownLeftVectorBar|RightAngleBracket|NotTildeFullEqual|NotReverseElement|RightUpDownVector|DiacriticalTilde|NotSucceedsTilde|circlearrowright|NotPrecedesEqual|rightharpoondown|DoubleRightArrow|NotSucceedsEqual|NonBreakingSpace|NotRightTriangle|LessEqualGreater|RightUpTeeVector|LeftAngleBracket|GreaterFullEqual|DownArrowUpArrow|RightUpVectorBar|twoheadleftarrow|GreaterEqualLess|downharpoonright|RightTriangleBar|ntrianglerighteq|NotSupersetEqual|LeftUpDownVector|DiacriticalAcute|rightrightarrows|vartriangleright|UpArrowDownArrow|DiacriticalGrave|UnderParenthesis|EmptySmallSquare|LeftUpVectorBar|leftrightarrows|DownRightVector|downharpoonleft|trianglerighteq|ShortRightArrow|OverParenthesis|DoubleLeftArrow|DoubleDownArrow|NotSquareSubset|bigtriangledown|ntrianglelefteq|UpperRightArrow|curvearrowright|vartriangleleft|NotLeftTriangle|nleftrightarrow|LowerRightArrow|NotHumpDownHump|NotGreaterTilde|rightthreetimes|LeftUpTeeVector|NotGreaterEqual|straightepsilon|LeftTriangleBar|rightsquigarrow|ContourIntegral|rightleftarrows|CloseCurlyQuote|RightDownVector|LeftRightVector|nLeftrightarrow|leftharpoondown|circlearrowleft|SquareSuperset|OpenCurlyQuote|hookrightarrow|HorizontalLine|DiacriticalDot|NotLessGreater|ntriangleright|DoubleRightTee|InvisibleComma|InvisibleTimes|LowerLeftArrow|DownLeftVector|NotSubsetEqual|curvearrowleft|trianglelefteq|NotVerticalBar|TildeFullEqual|downdownarrows|NotGreaterLess|RightTeeVector|ZeroWidthSpace|looparrowright|LongRightArrow|doublebarwedge|ShortLeftArrow|ShortDownArrow|RightVectorBar|GreaterGreater|ReverseElement|rightharpoonup|LessSlantEqual|leftthreetimes|upharpoonright|rightarrowtail|LeftDownVector|Longrightarrow|NestedLessLess|UpperLeftArrow|nshortparallel|leftleftarrows|leftrightarrow|Leftrightarrow|LeftRightArrow|longrightarrow|upharpoonleft|RightArrowBar|ApplyFunction|LeftTeeVector|leftarrowtail|NotEqualTilde|varsubsetneqq|varsupsetneqq|RightTeeArrow|SucceedsEqual|SucceedsTilde|LeftVectorBar|SupersetEqual|hookleftarrow|DifferentialD|VerticalTilde|VeryThinSpace|blacktriangle|bigtriangleup|LessFullEqual|divideontimes|leftharpoonup|UpEquilibrium|ntriangleleft|RightTriangle|measuredangle|shortparallel|longleftarrow|Longleftarrow|LongLeftArrow|DoubleLeftTee|Poincareplane|PrecedesEqual|triangleright|DoubleUpArrow|RightUpVector|fallingdotseq|looparrowleft|PrecedesTilde|NotTildeEqual|NotTildeTilde|smallsetminus|Proportional|triangleleft|triangledown|UnderBracket|NotHumpEqual|exponentiale|ExponentialE|NotLessTilde|HilbertSpace|RightCeiling|blacklozenge|varsupsetneq|HumpDownHump|GreaterEqual|VerticalLine|LeftTeeArrow|NotLessEqual|DownTeeArrow|LeftTriangle|varsubsetneq|Intersection|NotCongruent|DownArrowBar|LeftUpVector|LeftArrowBar|risingdotseq|GreaterTilde|RoundImplies|SquareSubset|ShortUpArrow|NotSuperset|quaternions|precnapprox|backepsilon|preccurlyeq|OverBracket|blacksquare|MediumSpace|VerticalBar|circledcirc|circleddash|CircleMinus|CircleTimes|LessGreater|curlyeqprec|curlyeqsucc|diamondsuit|UpDownArrow|Updownarrow|RuleDelayed|Rrightarrow|updownarrow|RightVector|nRightarrow|nrightarrow|eqslantless|LeftCeiling|Equilibrium|SmallCircle|expectation|NotSucceeds|thickapprox|GreaterLess|SquareUnion|NotPrecedes|NotLessLess|straightphi|succnapprox|succcurlyeq|SubsetEqual|sqsupseteq|Proportion|Laplacetrf|ImaginaryI|supsetneqq|NotGreater|gtreqqless|NotElement|ThickSpace|TildeEqual|TildeTilde|Fouriertrf|rmoustache|EqualTilde|eqslantgtr|UnderBrace|LeftVector|UpArrowBar|nLeftarrow|nsubseteqq|subsetneqq|nsupseteqq|nleftarrow|succapprox|lessapprox|UpTeeArrow|upuparrows|curlywedge|lesseqqgtr|varepsilon|varnothing|RightFloor|c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+	    var decodeMap = {
+	      'aacute': '\xE1',
+	      'Aacute': '\xC1',
+	      'abreve': "\u0103",
+	      'Abreve': "\u0102",
+	      'ac': "\u223E",
+	      'acd': "\u223F",
+	      'acE': "\u223E\u0333",
+	      'acirc': '\xE2',
+	      'Acirc': '\xC2',
+	      'acute': '\xB4',
+	      'acy': "\u0430",
+	      'Acy': "\u0410",
+	      'aelig': '\xE6',
+	      'AElig': '\xC6',
+	      'af': "\u2061",
+	      'afr': "\uD835\uDD1E",
+	      'Afr': "\uD835\uDD04",
+	      'agrave': '\xE0',
+	      'Agrave': '\xC0',
+	      'alefsym': "\u2135",
+	      'aleph': "\u2135",
+	      'alpha': "\u03B1",
+	      'Alpha': "\u0391",
+	      'amacr': "\u0101",
+	      'Amacr': "\u0100",
+	      'amalg': "\u2A3F",
+	      'amp': '&',
+	      'AMP': '&',
+	      'and': "\u2227",
+	      'And': "\u2A53",
+	      'andand': "\u2A55",
+	      'andd': "\u2A5C",
+	      'andslope': "\u2A58",
+	      'andv': "\u2A5A",
+	      'ang': "\u2220",
+	      'ange': "\u29A4",
+	      'angle': "\u2220",
+	      'angmsd': "\u2221",
+	      'angmsdaa': "\u29A8",
+	      'angmsdab': "\u29A9",
+	      'angmsdac': "\u29AA",
+	      'angmsdad': "\u29AB",
+	      'angmsdae': "\u29AC",
+	      'angmsdaf': "\u29AD",
+	      'angmsdag': "\u29AE",
+	      'angmsdah': "\u29AF",
+	      'angrt': "\u221F",
+	      'angrtvb': "\u22BE",
+	      'angrtvbd': "\u299D",
+	      'angsph': "\u2222",
+	      'angst': '\xC5',
+	      'angzarr': "\u237C",
+	      'aogon': "\u0105",
+	      'Aogon': "\u0104",
+	      'aopf': "\uD835\uDD52",
+	      'Aopf': "\uD835\uDD38",
+	      'ap': "\u2248",
+	      'apacir': "\u2A6F",
+	      'ape': "\u224A",
+	      'apE': "\u2A70",
+	      'apid': "\u224B",
+	      'apos': '\'',
+	      'ApplyFunction': "\u2061",
+	      'approx': "\u2248",
+	      'approxeq': "\u224A",
+	      'aring': '\xE5',
+	      'Aring': '\xC5',
+	      'ascr': "\uD835\uDCB6",
+	      'Ascr': "\uD835\uDC9C",
+	      'Assign': "\u2254",
+	      'ast': '*',
+	      'asymp': "\u2248",
+	      'asympeq': "\u224D",
+	      'atilde': '\xE3',
+	      'Atilde': '\xC3',
+	      'auml': '\xE4',
+	      'Auml': '\xC4',
+	      'awconint': "\u2233",
+	      'awint': "\u2A11",
+	      'backcong': "\u224C",
+	      'backepsilon': "\u03F6",
+	      'backprime': "\u2035",
+	      'backsim': "\u223D",
+	      'backsimeq': "\u22CD",
+	      'Backslash': "\u2216",
+	      'Barv': "\u2AE7",
+	      'barvee': "\u22BD",
+	      'barwed': "\u2305",
+	      'Barwed': "\u2306",
+	      'barwedge': "\u2305",
+	      'bbrk': "\u23B5",
+	      'bbrktbrk': "\u23B6",
+	      'bcong': "\u224C",
+	      'bcy': "\u0431",
+	      'Bcy': "\u0411",
+	      'bdquo': "\u201E",
+	      'becaus': "\u2235",
+	      'because': "\u2235",
+	      'Because': "\u2235",
+	      'bemptyv': "\u29B0",
+	      'bepsi': "\u03F6",
+	      'bernou': "\u212C",
+	      'Bernoullis': "\u212C",
+	      'beta': "\u03B2",
+	      'Beta': "\u0392",
+	      'beth': "\u2136",
+	      'between': "\u226C",
+	      'bfr': "\uD835\uDD1F",
+	      'Bfr': "\uD835\uDD05",
+	      'bigcap': "\u22C2",
+	      'bigcirc': "\u25EF",
+	      'bigcup': "\u22C3",
+	      'bigodot': "\u2A00",
+	      'bigoplus': "\u2A01",
+	      'bigotimes': "\u2A02",
+	      'bigsqcup': "\u2A06",
+	      'bigstar': "\u2605",
+	      'bigtriangledown': "\u25BD",
+	      'bigtriangleup': "\u25B3",
+	      'biguplus': "\u2A04",
+	      'bigvee': "\u22C1",
+	      'bigwedge': "\u22C0",
+	      'bkarow': "\u290D",
+	      'blacklozenge': "\u29EB",
+	      'blacksquare': "\u25AA",
+	      'blacktriangle': "\u25B4",
+	      'blacktriangledown': "\u25BE",
+	      'blacktriangleleft': "\u25C2",
+	      'blacktriangleright': "\u25B8",
+	      'blank': "\u2423",
+	      'blk12': "\u2592",
+	      'blk14': "\u2591",
+	      'blk34': "\u2593",
+	      'block': "\u2588",
+	      'bne': "=\u20E5",
+	      'bnequiv': "\u2261\u20E5",
+	      'bnot': "\u2310",
+	      'bNot': "\u2AED",
+	      'bopf': "\uD835\uDD53",
+	      'Bopf': "\uD835\uDD39",
+	      'bot': "\u22A5",
+	      'bottom': "\u22A5",
+	      'bowtie': "\u22C8",
+	      'boxbox': "\u29C9",
+	      'boxdl': "\u2510",
+	      'boxdL': "\u2555",
+	      'boxDl': "\u2556",
+	      'boxDL': "\u2557",
+	      'boxdr': "\u250C",
+	      'boxdR': "\u2552",
+	      'boxDr': "\u2553",
+	      'boxDR': "\u2554",
+	      'boxh': "\u2500",
+	      'boxH': "\u2550",
+	      'boxhd': "\u252C",
+	      'boxhD': "\u2565",
+	      'boxHd': "\u2564",
+	      'boxHD': "\u2566",
+	      'boxhu': "\u2534",
+	      'boxhU': "\u2568",
+	      'boxHu': "\u2567",
+	      'boxHU': "\u2569",
+	      'boxminus': "\u229F",
+	      'boxplus': "\u229E",
+	      'boxtimes': "\u22A0",
+	      'boxul': "\u2518",
+	      'boxuL': "\u255B",
+	      'boxUl': "\u255C",
+	      'boxUL': "\u255D",
+	      'boxur': "\u2514",
+	      'boxuR': "\u2558",
+	      'boxUr': "\u2559",
+	      'boxUR': "\u255A",
+	      'boxv': "\u2502",
+	      'boxV': "\u2551",
+	      'boxvh': "\u253C",
+	      'boxvH': "\u256A",
+	      'boxVh': "\u256B",
+	      'boxVH': "\u256C",
+	      'boxvl': "\u2524",
+	      'boxvL': "\u2561",
+	      'boxVl': "\u2562",
+	      'boxVL': "\u2563",
+	      'boxvr': "\u251C",
+	      'boxvR': "\u255E",
+	      'boxVr': "\u255F",
+	      'boxVR': "\u2560",
+	      'bprime': "\u2035",
+	      'breve': "\u02D8",
+	      'Breve': "\u02D8",
+	      'brvbar': '\xA6',
+	      'bscr': "\uD835\uDCB7",
+	      'Bscr': "\u212C",
+	      'bsemi': "\u204F",
+	      'bsim': "\u223D",
+	      'bsime': "\u22CD",
+	      'bsol': '\\',
+	      'bsolb': "\u29C5",
+	      'bsolhsub': "\u27C8",
+	      'bull': "\u2022",
+	      'bullet': "\u2022",
+	      'bump': "\u224E",
+	      'bumpe': "\u224F",
+	      'bumpE': "\u2AAE",
+	      'bumpeq': "\u224F",
+	      'Bumpeq': "\u224E",
+	      'cacute': "\u0107",
+	      'Cacute': "\u0106",
+	      'cap': "\u2229",
+	      'Cap': "\u22D2",
+	      'capand': "\u2A44",
+	      'capbrcup': "\u2A49",
+	      'capcap': "\u2A4B",
+	      'capcup': "\u2A47",
+	      'capdot': "\u2A40",
+	      'CapitalDifferentialD': "\u2145",
+	      'caps': "\u2229\uFE00",
+	      'caret': "\u2041",
+	      'caron': "\u02C7",
+	      'Cayleys': "\u212D",
+	      'ccaps': "\u2A4D",
+	      'ccaron': "\u010D",
+	      'Ccaron': "\u010C",
+	      'ccedil': '\xE7',
+	      'Ccedil': '\xC7',
+	      'ccirc': "\u0109",
+	      'Ccirc': "\u0108",
+	      'Cconint': "\u2230",
+	      'ccups': "\u2A4C",
+	      'ccupssm': "\u2A50",
+	      'cdot': "\u010B",
+	      'Cdot': "\u010A",
+	      'cedil': '\xB8',
+	      'Cedilla': '\xB8',
+	      'cemptyv': "\u29B2",
+	      'cent': '\xA2',
+	      'centerdot': '\xB7',
+	      'CenterDot': '\xB7',
+	      'cfr': "\uD835\uDD20",
+	      'Cfr': "\u212D",
+	      'chcy': "\u0447",
+	      'CHcy': "\u0427",
+	      'check': "\u2713",
+	      'checkmark': "\u2713",
+	      'chi': "\u03C7",
+	      'Chi': "\u03A7",
+	      'cir': "\u25CB",
+	      'circ': "\u02C6",
+	      'circeq': "\u2257",
+	      'circlearrowleft': "\u21BA",
+	      'circlearrowright': "\u21BB",
+	      'circledast': "\u229B",
+	      'circledcirc': "\u229A",
+	      'circleddash': "\u229D",
+	      'CircleDot': "\u2299",
+	      'circledR': '\xAE',
+	      'circledS': "\u24C8",
+	      'CircleMinus': "\u2296",
+	      'CirclePlus': "\u2295",
+	      'CircleTimes': "\u2297",
+	      'cire': "\u2257",
+	      'cirE': "\u29C3",
+	      'cirfnint': "\u2A10",
+	      'cirmid': "\u2AEF",
+	      'cirscir': "\u29C2",
+	      'ClockwiseContourIntegral': "\u2232",
+	      'CloseCurlyDoubleQuote': "\u201D",
+	      'CloseCurlyQuote': "\u2019",
+	      'clubs': "\u2663",
+	      'clubsuit': "\u2663",
+	      'colon': ':',
+	      'Colon': "\u2237",
+	      'colone': "\u2254",
+	      'Colone': "\u2A74",
+	      'coloneq': "\u2254",
+	      'comma': ',',
+	      'commat': '@',
+	      'comp': "\u2201",
+	      'compfn': "\u2218",
+	      'complement': "\u2201",
+	      'complexes': "\u2102",
+	      'cong': "\u2245",
+	      'congdot': "\u2A6D",
+	      'Congruent': "\u2261",
+	      'conint': "\u222E",
+	      'Conint': "\u222F",
+	      'ContourIntegral': "\u222E",
+	      'copf': "\uD835\uDD54",
+	      'Copf': "\u2102",
+	      'coprod': "\u2210",
+	      'Coproduct': "\u2210",
+	      'copy': '\xA9',
+	      'COPY': '\xA9',
+	      'copysr': "\u2117",
+	      'CounterClockwiseContourIntegral': "\u2233",
+	      'crarr': "\u21B5",
+	      'cross': "\u2717",
+	      'Cross': "\u2A2F",
+	      'cscr': "\uD835\uDCB8",
+	      'Cscr': "\uD835\uDC9E",
+	      'csub': "\u2ACF",
+	      'csube': "\u2AD1",
+	      'csup': "\u2AD0",
+	      'csupe': "\u2AD2",
+	      'ctdot': "\u22EF",
+	      'cudarrl': "\u2938",
+	      'cudarrr': "\u2935",
+	      'cuepr': "\u22DE",
+	      'cuesc': "\u22DF",
+	      'cularr': "\u21B6",
+	      'cularrp': "\u293D",
+	      'cup': "\u222A",
+	      'Cup': "\u22D3",
+	      'cupbrcap': "\u2A48",
+	      'cupcap': "\u2A46",
+	      'CupCap': "\u224D",
+	      'cupcup': "\u2A4A",
+	      'cupdot': "\u228D",
+	      'cupor': "\u2A45",
+	      'cups': "\u222A\uFE00",
+	      'curarr': "\u21B7",
+	      'curarrm': "\u293C",
+	      'curlyeqprec': "\u22DE",
+	      'curlyeqsucc': "\u22DF",
+	      'curlyvee': "\u22CE",
+	      'curlywedge': "\u22CF",
+	      'curren': '\xA4',
+	      'curvearrowleft': "\u21B6",
+	      'curvearrowright': "\u21B7",
+	      'cuvee': "\u22CE",
+	      'cuwed': "\u22CF",
+	      'cwconint': "\u2232",
+	      'cwint': "\u2231",
+	      'cylcty': "\u232D",
+	      'dagger': "\u2020",
+	      'Dagger': "\u2021",
+	      'daleth': "\u2138",
+	      'darr': "\u2193",
+	      'dArr': "\u21D3",
+	      'Darr': "\u21A1",
+	      'dash': "\u2010",
+	      'dashv': "\u22A3",
+	      'Dashv': "\u2AE4",
+	      'dbkarow': "\u290F",
+	      'dblac': "\u02DD",
+	      'dcaron': "\u010F",
+	      'Dcaron': "\u010E",
+	      'dcy': "\u0434",
+	      'Dcy': "\u0414",
+	      'dd': "\u2146",
+	      'DD': "\u2145",
+	      'ddagger': "\u2021",
+	      'ddarr': "\u21CA",
+	      'DDotrahd': "\u2911",
+	      'ddotseq': "\u2A77",
+	      'deg': '\xB0',
+	      'Del': "\u2207",
+	      'delta': "\u03B4",
+	      'Delta': "\u0394",
+	      'demptyv': "\u29B1",
+	      'dfisht': "\u297F",
+	      'dfr': "\uD835\uDD21",
+	      'Dfr': "\uD835\uDD07",
+	      'dHar': "\u2965",
+	      'dharl': "\u21C3",
+	      'dharr': "\u21C2",
+	      'DiacriticalAcute': '\xB4',
+	      'DiacriticalDot': "\u02D9",
+	      'DiacriticalDoubleAcute': "\u02DD",
+	      'DiacriticalGrave': '`',
+	      'DiacriticalTilde': "\u02DC",
+	      'diam': "\u22C4",
+	      'diamond': "\u22C4",
+	      'Diamond': "\u22C4",
+	      'diamondsuit': "\u2666",
+	      'diams': "\u2666",
+	      'die': '\xA8',
+	      'DifferentialD': "\u2146",
+	      'digamma': "\u03DD",
+	      'disin': "\u22F2",
+	      'div': '\xF7',
+	      'divide': '\xF7',
+	      'divideontimes': "\u22C7",
+	      'divonx': "\u22C7",
+	      'djcy': "\u0452",
+	      'DJcy': "\u0402",
+	      'dlcorn': "\u231E",
+	      'dlcrop': "\u230D",
+	      'dollar': '$',
+	      'dopf': "\uD835\uDD55",
+	      'Dopf': "\uD835\uDD3B",
+	      'dot': "\u02D9",
+	      'Dot': '\xA8',
+	      'DotDot': "\u20DC",
+	      'doteq': "\u2250",
+	      'doteqdot': "\u2251",
+	      'DotEqual': "\u2250",
+	      'dotminus': "\u2238",
+	      'dotplus': "\u2214",
+	      'dotsquare': "\u22A1",
+	      'doublebarwedge': "\u2306",
+	      'DoubleContourIntegral': "\u222F",
+	      'DoubleDot': '\xA8',
+	      'DoubleDownArrow': "\u21D3",
+	      'DoubleLeftArrow': "\u21D0",
+	      'DoubleLeftRightArrow': "\u21D4",
+	      'DoubleLeftTee': "\u2AE4",
+	      'DoubleLongLeftArrow': "\u27F8",
+	      'DoubleLongLeftRightArrow': "\u27FA",
+	      'DoubleLongRightArrow': "\u27F9",
+	      'DoubleRightArrow': "\u21D2",
+	      'DoubleRightTee': "\u22A8",
+	      'DoubleUpArrow': "\u21D1",
+	      'DoubleUpDownArrow': "\u21D5",
+	      'DoubleVerticalBar': "\u2225",
+	      'downarrow': "\u2193",
+	      'Downarrow': "\u21D3",
+	      'DownArrow': "\u2193",
+	      'DownArrowBar': "\u2913",
+	      'DownArrowUpArrow': "\u21F5",
+	      'DownBreve': "\u0311",
+	      'downdownarrows': "\u21CA",
+	      'downharpoonleft': "\u21C3",
+	      'downharpoonright': "\u21C2",
+	      'DownLeftRightVector': "\u2950",
+	      'DownLeftTeeVector': "\u295E",
+	      'DownLeftVector': "\u21BD",
+	      'DownLeftVectorBar': "\u2956",
+	      'DownRightTeeVector': "\u295F",
+	      'DownRightVector': "\u21C1",
+	      'DownRightVectorBar': "\u2957",
+	      'DownTee': "\u22A4",
+	      'DownTeeArrow': "\u21A7",
+	      'drbkarow': "\u2910",
+	      'drcorn': "\u231F",
+	      'drcrop': "\u230C",
+	      'dscr': "\uD835\uDCB9",
+	      'Dscr': "\uD835\uDC9F",
+	      'dscy': "\u0455",
+	      'DScy': "\u0405",
+	      'dsol': "\u29F6",
+	      'dstrok': "\u0111",
+	      'Dstrok': "\u0110",
+	      'dtdot': "\u22F1",
+	      'dtri': "\u25BF",
+	      'dtrif': "\u25BE",
+	      'duarr': "\u21F5",
+	      'duhar': "\u296F",
+	      'dwangle': "\u29A6",
+	      'dzcy': "\u045F",
+	      'DZcy': "\u040F",
+	      'dzigrarr': "\u27FF",
+	      'eacute': '\xE9',
+	      'Eacute': '\xC9',
+	      'easter': "\u2A6E",
+	      'ecaron': "\u011B",
+	      'Ecaron': "\u011A",
+	      'ecir': "\u2256",
+	      'ecirc': '\xEA',
+	      'Ecirc': '\xCA',
+	      'ecolon': "\u2255",
+	      'ecy': "\u044D",
+	      'Ecy': "\u042D",
+	      'eDDot': "\u2A77",
+	      'edot': "\u0117",
+	      'eDot': "\u2251",
+	      'Edot': "\u0116",
+	      'ee': "\u2147",
+	      'efDot': "\u2252",
+	      'efr': "\uD835\uDD22",
+	      'Efr': "\uD835\uDD08",
+	      'eg': "\u2A9A",
+	      'egrave': '\xE8',
+	      'Egrave': '\xC8',
+	      'egs': "\u2A96",
+	      'egsdot': "\u2A98",
+	      'el': "\u2A99",
+	      'Element': "\u2208",
+	      'elinters': "\u23E7",
+	      'ell': "\u2113",
+	      'els': "\u2A95",
+	      'elsdot': "\u2A97",
+	      'emacr': "\u0113",
+	      'Emacr': "\u0112",
+	      'empty': "\u2205",
+	      'emptyset': "\u2205",
+	      'EmptySmallSquare': "\u25FB",
+	      'emptyv': "\u2205",
+	      'EmptyVerySmallSquare': "\u25AB",
+	      'emsp': "\u2003",
+	      'emsp13': "\u2004",
+	      'emsp14': "\u2005",
+	      'eng': "\u014B",
+	      'ENG': "\u014A",
+	      'ensp': "\u2002",
+	      'eogon': "\u0119",
+	      'Eogon': "\u0118",
+	      'eopf': "\uD835\uDD56",
+	      'Eopf': "\uD835\uDD3C",
+	      'epar': "\u22D5",
+	      'eparsl': "\u29E3",
+	      'eplus': "\u2A71",
+	      'epsi': "\u03B5",
+	      'epsilon': "\u03B5",
+	      'Epsilon': "\u0395",
+	      'epsiv': "\u03F5",
+	      'eqcirc': "\u2256",
+	      'eqcolon': "\u2255",
+	      'eqsim': "\u2242",
+	      'eqslantgtr': "\u2A96",
+	      'eqslantless': "\u2A95",
+	      'Equal': "\u2A75",
+	      'equals': '=',
+	      'EqualTilde': "\u2242",
+	      'equest': "\u225F",
+	      'Equilibrium': "\u21CC",
+	      'equiv': "\u2261",
+	      'equivDD': "\u2A78",
+	      'eqvparsl': "\u29E5",
+	      'erarr': "\u2971",
+	      'erDot': "\u2253",
+	      'escr': "\u212F",
+	      'Escr': "\u2130",
+	      'esdot': "\u2250",
+	      'esim': "\u2242",
+	      'Esim': "\u2A73",
+	      'eta': "\u03B7",
+	      'Eta': "\u0397",
+	      'eth': '\xF0',
+	      'ETH': '\xD0',
+	      'euml': '\xEB',
+	      'Euml': '\xCB',
+	      'euro': "\u20AC",
+	      'excl': '!',
+	      'exist': "\u2203",
+	      'Exists': "\u2203",
+	      'expectation': "\u2130",
+	      'exponentiale': "\u2147",
+	      'ExponentialE': "\u2147",
+	      'fallingdotseq': "\u2252",
+	      'fcy': "\u0444",
+	      'Fcy': "\u0424",
+	      'female': "\u2640",
+	      'ffilig': "\uFB03",
+	      'fflig': "\uFB00",
+	      'ffllig': "\uFB04",
+	      'ffr': "\uD835\uDD23",
+	      'Ffr': "\uD835\uDD09",
+	      'filig': "\uFB01",
+	      'FilledSmallSquare': "\u25FC",
+	      'FilledVerySmallSquare': "\u25AA",
+	      'fjlig': 'fj',
+	      'flat': "\u266D",
+	      'fllig': "\uFB02",
+	      'fltns': "\u25B1",
+	      'fnof': "\u0192",
+	      'fopf': "\uD835\uDD57",
+	      'Fopf': "\uD835\uDD3D",
+	      'forall': "\u2200",
+	      'ForAll': "\u2200",
+	      'fork': "\u22D4",
+	      'forkv': "\u2AD9",
+	      'Fouriertrf': "\u2131",
+	      'fpartint': "\u2A0D",
+	      'frac12': '\xBD',
+	      'frac13': "\u2153",
+	      'frac14': '\xBC',
+	      'frac15': "\u2155",
+	      'frac16': "\u2159",
+	      'frac18': "\u215B",
+	      'frac23': "\u2154",
+	      'frac25': "\u2156",
+	      'frac34': '\xBE',
+	      'frac35': "\u2157",
+	      'frac38': "\u215C",
+	      'frac45': "\u2158",
+	      'frac56': "\u215A",
+	      'frac58': "\u215D",
+	      'frac78': "\u215E",
+	      'frasl': "\u2044",
+	      'frown': "\u2322",
+	      'fscr': "\uD835\uDCBB",
+	      'Fscr': "\u2131",
+	      'gacute': "\u01F5",
+	      'gamma': "\u03B3",
+	      'Gamma': "\u0393",
+	      'gammad': "\u03DD",
+	      'Gammad': "\u03DC",
+	      'gap': "\u2A86",
+	      'gbreve': "\u011F",
+	      'Gbreve': "\u011E",
+	      'Gcedil': "\u0122",
+	      'gcirc': "\u011D",
+	      'Gcirc': "\u011C",
+	      'gcy': "\u0433",
+	      'Gcy': "\u0413",
+	      'gdot': "\u0121",
+	      'Gdot': "\u0120",
+	      'ge': "\u2265",
+	      'gE': "\u2267",
+	      'gel': "\u22DB",
+	      'gEl': "\u2A8C",
+	      'geq': "\u2265",
+	      'geqq': "\u2267",
+	      'geqslant': "\u2A7E",
+	      'ges': "\u2A7E",
+	      'gescc': "\u2AA9",
+	      'gesdot': "\u2A80",
+	      'gesdoto': "\u2A82",
+	      'gesdotol': "\u2A84",
+	      'gesl': "\u22DB\uFE00",
+	      'gesles': "\u2A94",
+	      'gfr': "\uD835\uDD24",
+	      'Gfr': "\uD835\uDD0A",
+	      'gg': "\u226B",
+	      'Gg': "\u22D9",
+	      'ggg': "\u22D9",
+	      'gimel': "\u2137",
+	      'gjcy': "\u0453",
+	      'GJcy': "\u0403",
+	      'gl': "\u2277",
+	      'gla': "\u2AA5",
+	      'glE': "\u2A92",
+	      'glj': "\u2AA4",
+	      'gnap': "\u2A8A",
+	      'gnapprox': "\u2A8A",
+	      'gne': "\u2A88",
+	      'gnE': "\u2269",
+	      'gneq': "\u2A88",
+	      'gneqq': "\u2269",
+	      'gnsim': "\u22E7",
+	      'gopf': "\uD835\uDD58",
+	      'Gopf': "\uD835\uDD3E",
+	      'grave': '`',
+	      'GreaterEqual': "\u2265",
+	      'GreaterEqualLess': "\u22DB",
+	      'GreaterFullEqual': "\u2267",
+	      'GreaterGreater': "\u2AA2",
+	      'GreaterLess': "\u2277",
+	      'GreaterSlantEqual': "\u2A7E",
+	      'GreaterTilde': "\u2273",
+	      'gscr': "\u210A",
+	      'Gscr': "\uD835\uDCA2",
+	      'gsim': "\u2273",
+	      'gsime': "\u2A8E",
+	      'gsiml': "\u2A90",
+	      'gt': '>',
+	      'Gt': "\u226B",
+	      'GT': '>',
+	      'gtcc': "\u2AA7",
+	      'gtcir': "\u2A7A",
+	      'gtdot': "\u22D7",
+	      'gtlPar': "\u2995",
+	      'gtquest': "\u2A7C",
+	      'gtrapprox': "\u2A86",
+	      'gtrarr': "\u2978",
+	      'gtrdot': "\u22D7",
+	      'gtreqless': "\u22DB",
+	      'gtreqqless': "\u2A8C",
+	      'gtrless': "\u2277",
+	      'gtrsim': "\u2273",
+	      'gvertneqq': "\u2269\uFE00",
+	      'gvnE': "\u2269\uFE00",
+	      'Hacek': "\u02C7",
+	      'hairsp': "\u200A",
+	      'half': '\xBD',
+	      'hamilt': "\u210B",
+	      'hardcy': "\u044A",
+	      'HARDcy': "\u042A",
+	      'harr': "\u2194",
+	      'hArr': "\u21D4",
+	      'harrcir': "\u2948",
+	      'harrw': "\u21AD",
+	      'Hat': '^',
+	      'hbar': "\u210F",
+	      'hcirc': "\u0125",
+	      'Hcirc': "\u0124",
+	      'hearts': "\u2665",
+	      'heartsuit': "\u2665",
+	      'hellip': "\u2026",
+	      'hercon': "\u22B9",
+	      'hfr': "\uD835\uDD25",
+	      'Hfr': "\u210C",
+	      'HilbertSpace': "\u210B",
+	      'hksearow': "\u2925",
+	      'hkswarow': "\u2926",
+	      'hoarr': "\u21FF",
+	      'homtht': "\u223B",
+	      'hookleftarrow': "\u21A9",
+	      'hookrightarrow': "\u21AA",
+	      'hopf': "\uD835\uDD59",
+	      'Hopf': "\u210D",
+	      'horbar': "\u2015",
+	      'HorizontalLine': "\u2500",
+	      'hscr': "\uD835\uDCBD",
+	      'Hscr': "\u210B",
+	      'hslash': "\u210F",
+	      'hstrok': "\u0127",
+	      'Hstrok': "\u0126",
+	      'HumpDownHump': "\u224E",
+	      'HumpEqual': "\u224F",
+	      'hybull': "\u2043",
+	      'hyphen': "\u2010",
+	      'iacute': '\xED',
+	      'Iacute': '\xCD',
+	      'ic': "\u2063",
+	      'icirc': '\xEE',
+	      'Icirc': '\xCE',
+	      'icy': "\u0438",
+	      'Icy': "\u0418",
+	      'Idot': "\u0130",
+	      'iecy': "\u0435",
+	      'IEcy': "\u0415",
+	      'iexcl': '\xA1',
+	      'iff': "\u21D4",
+	      'ifr': "\uD835\uDD26",
+	      'Ifr': "\u2111",
+	      'igrave': '\xEC',
+	      'Igrave': '\xCC',
+	      'ii': "\u2148",
+	      'iiiint': "\u2A0C",
+	      'iiint': "\u222D",
+	      'iinfin': "\u29DC",
+	      'iiota': "\u2129",
+	      'ijlig': "\u0133",
+	      'IJlig': "\u0132",
+	      'Im': "\u2111",
+	      'imacr': "\u012B",
+	      'Imacr': "\u012A",
+	      'image': "\u2111",
+	      'ImaginaryI': "\u2148",
+	      'imagline': "\u2110",
+	      'imagpart': "\u2111",
+	      'imath': "\u0131",
+	      'imof': "\u22B7",
+	      'imped': "\u01B5",
+	      'Implies': "\u21D2",
+	      'in': "\u2208",
+	      'incare': "\u2105",
+	      'infin': "\u221E",
+	      'infintie': "\u29DD",
+	      'inodot': "\u0131",
+	      'int': "\u222B",
+	      'Int': "\u222C",
+	      'intcal': "\u22BA",
+	      'integers': "\u2124",
+	      'Integral': "\u222B",
+	      'intercal': "\u22BA",
+	      'Intersection': "\u22C2",
+	      'intlarhk': "\u2A17",
+	      'intprod': "\u2A3C",
+	      'InvisibleComma': "\u2063",
+	      'InvisibleTimes': "\u2062",
+	      'iocy': "\u0451",
+	      'IOcy': "\u0401",
+	      'iogon': "\u012F",
+	      'Iogon': "\u012E",
+	      'iopf': "\uD835\uDD5A",
+	      'Iopf': "\uD835\uDD40",
+	      'iota': "\u03B9",
+	      'Iota': "\u0399",
+	      'iprod': "\u2A3C",
+	      'iquest': '\xBF',
+	      'iscr': "\uD835\uDCBE",
+	      'Iscr': "\u2110",
+	      'isin': "\u2208",
+	      'isindot': "\u22F5",
+	      'isinE': "\u22F9",
+	      'isins': "\u22F4",
+	      'isinsv': "\u22F3",
+	      'isinv': "\u2208",
+	      'it': "\u2062",
+	      'itilde': "\u0129",
+	      'Itilde': "\u0128",
+	      'iukcy': "\u0456",
+	      'Iukcy': "\u0406",
+	      'iuml': '\xEF',
+	      'Iuml': '\xCF',
+	      'jcirc': "\u0135",
+	      'Jcirc': "\u0134",
+	      'jcy': "\u0439",
+	      'Jcy': "\u0419",
+	      'jfr': "\uD835\uDD27",
+	      'Jfr': "\uD835\uDD0D",
+	      'jmath': "\u0237",
+	      'jopf': "\uD835\uDD5B",
+	      'Jopf': "\uD835\uDD41",
+	      'jscr': "\uD835\uDCBF",
+	      'Jscr': "\uD835\uDCA5",
+	      'jsercy': "\u0458",
+	      'Jsercy': "\u0408",
+	      'jukcy': "\u0454",
+	      'Jukcy': "\u0404",
+	      'kappa': "\u03BA",
+	      'Kappa': "\u039A",
+	      'kappav': "\u03F0",
+	      'kcedil': "\u0137",
+	      'Kcedil': "\u0136",
+	      'kcy': "\u043A",
+	      'Kcy': "\u041A",
+	      'kfr': "\uD835\uDD28",
+	      'Kfr': "\uD835\uDD0E",
+	      'kgreen': "\u0138",
+	      'khcy': "\u0445",
+	      'KHcy': "\u0425",
+	      'kjcy': "\u045C",
+	      'KJcy': "\u040C",
+	      'kopf': "\uD835\uDD5C",
+	      'Kopf': "\uD835\uDD42",
+	      'kscr': "\uD835\uDCC0",
+	      'Kscr': "\uD835\uDCA6",
+	      'lAarr': "\u21DA",
+	      'lacute': "\u013A",
+	      'Lacute': "\u0139",
+	      'laemptyv': "\u29B4",
+	      'lagran': "\u2112",
+	      'lambda': "\u03BB",
+	      'Lambda': "\u039B",
+	      'lang': "\u27E8",
+	      'Lang': "\u27EA",
+	      'langd': "\u2991",
+	      'langle': "\u27E8",
+	      'lap': "\u2A85",
+	      'Laplacetrf': "\u2112",
+	      'laquo': '\xAB',
+	      'larr': "\u2190",
+	      'lArr': "\u21D0",
+	      'Larr': "\u219E",
+	      'larrb': "\u21E4",
+	      'larrbfs': "\u291F",
+	      'larrfs': "\u291D",
+	      'larrhk': "\u21A9",
+	      'larrlp': "\u21AB",
+	      'larrpl': "\u2939",
+	      'larrsim': "\u2973",
+	      'larrtl': "\u21A2",
+	      'lat': "\u2AAB",
+	      'latail': "\u2919",
+	      'lAtail': "\u291B",
+	      'late': "\u2AAD",
+	      'lates': "\u2AAD\uFE00",
+	      'lbarr': "\u290C",
+	      'lBarr': "\u290E",
+	      'lbbrk': "\u2772",
+	      'lbrace': '{',
+	      'lbrack': '[',
+	      'lbrke': "\u298B",
+	      'lbrksld': "\u298F",
+	      'lbrkslu': "\u298D",
+	      'lcaron': "\u013E",
+	      'Lcaron': "\u013D",
+	      'lcedil': "\u013C",
+	      'Lcedil': "\u013B",
+	      'lceil': "\u2308",
+	      'lcub': '{',
+	      'lcy': "\u043B",
+	      'Lcy': "\u041B",
+	      'ldca': "\u2936",
+	      'ldquo': "\u201C",
+	      'ldquor': "\u201E",
+	      'ldrdhar': "\u2967",
+	      'ldrushar': "\u294B",
+	      'ldsh': "\u21B2",
+	      'le': "\u2264",
+	      'lE': "\u2266",
+	      'LeftAngleBracket': "\u27E8",
+	      'leftarrow': "\u2190",
+	      'Leftarrow': "\u21D0",
+	      'LeftArrow': "\u2190",
+	      'LeftArrowBar': "\u21E4",
+	      'LeftArrowRightArrow': "\u21C6",
+	      'leftarrowtail': "\u21A2",
+	      'LeftCeiling': "\u2308",
+	      'LeftDoubleBracket': "\u27E6",
+	      'LeftDownTeeVector': "\u2961",
+	      'LeftDownVector': "\u21C3",
+	      'LeftDownVectorBar': "\u2959",
+	      'LeftFloor': "\u230A",
+	      'leftharpoondown': "\u21BD",
+	      'leftharpoonup': "\u21BC",
+	      'leftleftarrows': "\u21C7",
+	      'leftrightarrow': "\u2194",
+	      'Leftrightarrow': "\u21D4",
+	      'LeftRightArrow': "\u2194",
+	      'leftrightarrows': "\u21C6",
+	      'leftrightharpoons': "\u21CB",
+	      'leftrightsquigarrow': "\u21AD",
+	      'LeftRightVector': "\u294E",
+	      'LeftTee': "\u22A3",
+	      'LeftTeeArrow': "\u21A4",
+	      'LeftTeeVector': "\u295A",
+	      'leftthreetimes': "\u22CB",
+	      'LeftTriangle': "\u22B2",
+	      'LeftTriangleBar': "\u29CF",
+	      'LeftTriangleEqual': "\u22B4",
+	      'LeftUpDownVector': "\u2951",
+	      'LeftUpTeeVector': "\u2960",
+	      'LeftUpVector': "\u21BF",
+	      'LeftUpVectorBar': "\u2958",
+	      'LeftVector': "\u21BC",
+	      'LeftVectorBar': "\u2952",
+	      'leg': "\u22DA",
+	      'lEg': "\u2A8B",
+	      'leq': "\u2264",
+	      'leqq': "\u2266",
+	      'leqslant': "\u2A7D",
+	      'les': "\u2A7D",
+	      'lescc': "\u2AA8",
+	      'lesdot': "\u2A7F",
+	      'lesdoto': "\u2A81",
+	      'lesdotor': "\u2A83",
+	      'lesg': "\u22DA\uFE00",
+	      'lesges': "\u2A93",
+	      'lessapprox': "\u2A85",
+	      'lessdot': "\u22D6",
+	      'lesseqgtr': "\u22DA",
+	      'lesseqqgtr': "\u2A8B",
+	      'LessEqualGreater': "\u22DA",
+	      'LessFullEqual': "\u2266",
+	      'LessGreater': "\u2276",
+	      'lessgtr': "\u2276",
+	      'LessLess': "\u2AA1",
+	      'lesssim': "\u2272",
+	      'LessSlantEqual': "\u2A7D",
+	      'LessTilde': "\u2272",
+	      'lfisht': "\u297C",
+	      'lfloor': "\u230A",
+	      'lfr': "\uD835\uDD29",
+	      'Lfr': "\uD835\uDD0F",
+	      'lg': "\u2276",
+	      'lgE': "\u2A91",
+	      'lHar': "\u2962",
+	      'lhard': "\u21BD",
+	      'lharu': "\u21BC",
+	      'lharul': "\u296A",
+	      'lhblk': "\u2584",
+	      'ljcy': "\u0459",
+	      'LJcy': "\u0409",
+	      'll': "\u226A",
+	      'Ll': "\u22D8",
+	      'llarr': "\u21C7",
+	      'llcorner': "\u231E",
+	      'Lleftarrow': "\u21DA",
+	      'llhard': "\u296B",
+	      'lltri': "\u25FA",
+	      'lmidot': "\u0140",
+	      'Lmidot': "\u013F",
+	      'lmoust': "\u23B0",
+	      'lmoustache': "\u23B0",
+	      'lnap': "\u2A89",
+	      'lnapprox': "\u2A89",
+	      'lne': "\u2A87",
+	      'lnE': "\u2268",
+	      'lneq': "\u2A87",
+	      'lneqq': "\u2268",
+	      'lnsim': "\u22E6",
+	      'loang': "\u27EC",
+	      'loarr': "\u21FD",
+	      'lobrk': "\u27E6",
+	      'longleftarrow': "\u27F5",
+	      'Longleftarrow': "\u27F8",
+	      'LongLeftArrow': "\u27F5",
+	      'longleftrightarrow': "\u27F7",
+	      'Longleftrightarrow': "\u27FA",
+	      'LongLeftRightArrow': "\u27F7",
+	      'longmapsto': "\u27FC",
+	      'longrightarrow': "\u27F6",
+	      'Longrightarrow': "\u27F9",
+	      'LongRightArrow': "\u27F6",
+	      'looparrowleft': "\u21AB",
+	      'looparrowright': "\u21AC",
+	      'lopar': "\u2985",
+	      'lopf': "\uD835\uDD5D",
+	      'Lopf': "\uD835\uDD43",
+	      'loplus': "\u2A2D",
+	      'lotimes': "\u2A34",
+	      'lowast': "\u2217",
+	      'lowbar': '_',
+	      'LowerLeftArrow': "\u2199",
+	      'LowerRightArrow': "\u2198",
+	      'loz': "\u25CA",
+	      'lozenge': "\u25CA",
+	      'lozf': "\u29EB",
+	      'lpar': '(',
+	      'lparlt': "\u2993",
+	      'lrarr': "\u21C6",
+	      'lrcorner': "\u231F",
+	      'lrhar': "\u21CB",
+	      'lrhard': "\u296D",
+	      'lrm': "\u200E",
+	      'lrtri': "\u22BF",
+	      'lsaquo': "\u2039",
+	      'lscr': "\uD835\uDCC1",
+	      'Lscr': "\u2112",
+	      'lsh': "\u21B0",
+	      'Lsh': "\u21B0",
+	      'lsim': "\u2272",
+	      'lsime': "\u2A8D",
+	      'lsimg': "\u2A8F",
+	      'lsqb': '[',
+	      'lsquo': "\u2018",
+	      'lsquor': "\u201A",
+	      'lstrok': "\u0142",
+	      'Lstrok': "\u0141",
+	      'lt': '<',
+	      'Lt': "\u226A",
+	      'LT': '<',
+	      'ltcc': "\u2AA6",
+	      'ltcir': "\u2A79",
+	      'ltdot': "\u22D6",
+	      'lthree': "\u22CB",
+	      'ltimes': "\u22C9",
+	      'ltlarr': "\u2976",
+	      'ltquest': "\u2A7B",
+	      'ltri': "\u25C3",
+	      'ltrie': "\u22B4",
+	      'ltrif': "\u25C2",
+	      'ltrPar': "\u2996",
+	      'lurdshar': "\u294A",
+	      'luruhar': "\u2966",
+	      'lvertneqq': "\u2268\uFE00",
+	      'lvnE': "\u2268\uFE00",
+	      'macr': '\xAF',
+	      'male': "\u2642",
+	      'malt': "\u2720",
+	      'maltese': "\u2720",
+	      'map': "\u21A6",
+	      'Map': "\u2905",
+	      'mapsto': "\u21A6",
+	      'mapstodown': "\u21A7",
+	      'mapstoleft': "\u21A4",
+	      'mapstoup': "\u21A5",
+	      'marker': "\u25AE",
+	      'mcomma': "\u2A29",
+	      'mcy': "\u043C",
+	      'Mcy': "\u041C",
+	      'mdash': "\u2014",
+	      'mDDot': "\u223A",
+	      'measuredangle': "\u2221",
+	      'MediumSpace': "\u205F",
+	      'Mellintrf': "\u2133",
+	      'mfr': "\uD835\uDD2A",
+	      'Mfr': "\uD835\uDD10",
+	      'mho': "\u2127",
+	      'micro': '\xB5',
+	      'mid': "\u2223",
+	      'midast': '*',
+	      'midcir': "\u2AF0",
+	      'middot': '\xB7',
+	      'minus': "\u2212",
+	      'minusb': "\u229F",
+	      'minusd': "\u2238",
+	      'minusdu': "\u2A2A",
+	      'MinusPlus': "\u2213",
+	      'mlcp': "\u2ADB",
+	      'mldr': "\u2026",
+	      'mnplus': "\u2213",
+	      'models': "\u22A7",
+	      'mopf': "\uD835\uDD5E",
+	      'Mopf': "\uD835\uDD44",
+	      'mp': "\u2213",
+	      'mscr': "\uD835\uDCC2",
+	      'Mscr': "\u2133",
+	      'mstpos': "\u223E",
+	      'mu': "\u03BC",
+	      'Mu': "\u039C",
+	      'multimap': "\u22B8",
+	      'mumap': "\u22B8",
+	      'nabla': "\u2207",
+	      'nacute': "\u0144",
+	      'Nacute': "\u0143",
+	      'nang': "\u2220\u20D2",
+	      'nap': "\u2249",
+	      'napE': "\u2A70\u0338",
+	      'napid': "\u224B\u0338",
+	      'napos': "\u0149",
+	      'napprox': "\u2249",
+	      'natur': "\u266E",
+	      'natural': "\u266E",
+	      'naturals': "\u2115",
+	      'nbsp': '\xA0',
+	      'nbump': "\u224E\u0338",
+	      'nbumpe': "\u224F\u0338",
+	      'ncap': "\u2A43",
+	      'ncaron': "\u0148",
+	      'Ncaron': "\u0147",
+	      'ncedil': "\u0146",
+	      'Ncedil': "\u0145",
+	      'ncong': "\u2247",
+	      'ncongdot': "\u2A6D\u0338",
+	      'ncup': "\u2A42",
+	      'ncy': "\u043D",
+	      'Ncy': "\u041D",
+	      'ndash': "\u2013",
+	      'ne': "\u2260",
+	      'nearhk': "\u2924",
+	      'nearr': "\u2197",
+	      'neArr': "\u21D7",
+	      'nearrow': "\u2197",
+	      'nedot': "\u2250\u0338",
+	      'NegativeMediumSpace': "\u200B",
+	      'NegativeThickSpace': "\u200B",
+	      'NegativeThinSpace': "\u200B",
+	      'NegativeVeryThinSpace': "\u200B",
+	      'nequiv': "\u2262",
+	      'nesear': "\u2928",
+	      'nesim': "\u2242\u0338",
+	      'NestedGreaterGreater': "\u226B",
+	      'NestedLessLess': "\u226A",
+	      'NewLine': '\n',
+	      'nexist': "\u2204",
+	      'nexists': "\u2204",
+	      'nfr': "\uD835\uDD2B",
+	      'Nfr': "\uD835\uDD11",
+	      'nge': "\u2271",
+	      'ngE': "\u2267\u0338",
+	      'ngeq': "\u2271",
+	      'ngeqq': "\u2267\u0338",
+	      'ngeqslant': "\u2A7E\u0338",
+	      'nges': "\u2A7E\u0338",
+	      'nGg': "\u22D9\u0338",
+	      'ngsim': "\u2275",
+	      'ngt': "\u226F",
+	      'nGt': "\u226B\u20D2",
+	      'ngtr': "\u226F",
+	      'nGtv': "\u226B\u0338",
+	      'nharr': "\u21AE",
+	      'nhArr': "\u21CE",
+	      'nhpar': "\u2AF2",
+	      'ni': "\u220B",
+	      'nis': "\u22FC",
+	      'nisd': "\u22FA",
+	      'niv': "\u220B",
+	      'njcy': "\u045A",
+	      'NJcy': "\u040A",
+	      'nlarr': "\u219A",
+	      'nlArr': "\u21CD",
+	      'nldr': "\u2025",
+	      'nle': "\u2270",
+	      'nlE': "\u2266\u0338",
+	      'nleftarrow': "\u219A",
+	      'nLeftarrow': "\u21CD",
+	      'nleftrightarrow': "\u21AE",
+	      'nLeftrightarrow': "\u21CE",
+	      'nleq': "\u2270",
+	      'nleqq': "\u2266\u0338",
+	      'nleqslant': "\u2A7D\u0338",
+	      'nles': "\u2A7D\u0338",
+	      'nless': "\u226E",
+	      'nLl': "\u22D8\u0338",
+	      'nlsim': "\u2274",
+	      'nlt': "\u226E",
+	      'nLt': "\u226A\u20D2",
+	      'nltri': "\u22EA",
+	      'nltrie': "\u22EC",
+	      'nLtv': "\u226A\u0338",
+	      'nmid': "\u2224",
+	      'NoBreak': "\u2060",
+	      'NonBreakingSpace': '\xA0',
+	      'nopf': "\uD835\uDD5F",
+	      'Nopf': "\u2115",
+	      'not': '\xAC',
+	      'Not': "\u2AEC",
+	      'NotCongruent': "\u2262",
+	      'NotCupCap': "\u226D",
+	      'NotDoubleVerticalBar': "\u2226",
+	      'NotElement': "\u2209",
+	      'NotEqual': "\u2260",
+	      'NotEqualTilde': "\u2242\u0338",
+	      'NotExists': "\u2204",
+	      'NotGreater': "\u226F",
+	      'NotGreaterEqual': "\u2271",
+	      'NotGreaterFullEqual': "\u2267\u0338",
+	      'NotGreaterGreater': "\u226B\u0338",
+	      'NotGreaterLess': "\u2279",
+	      'NotGreaterSlantEqual': "\u2A7E\u0338",
+	      'NotGreaterTilde': "\u2275",
+	      'NotHumpDownHump': "\u224E\u0338",
+	      'NotHumpEqual': "\u224F\u0338",
+	      'notin': "\u2209",
+	      'notindot': "\u22F5\u0338",
+	      'notinE': "\u22F9\u0338",
+	      'notinva': "\u2209",
+	      'notinvb': "\u22F7",
+	      'notinvc': "\u22F6",
+	      'NotLeftTriangle': "\u22EA",
+	      'NotLeftTriangleBar': "\u29CF\u0338",
+	      'NotLeftTriangleEqual': "\u22EC",
+	      'NotLess': "\u226E",
+	      'NotLessEqual': "\u2270",
+	      'NotLessGreater': "\u2278",
+	      'NotLessLess': "\u226A\u0338",
+	      'NotLessSlantEqual': "\u2A7D\u0338",
+	      'NotLessTilde': "\u2274",
+	      'NotNestedGreaterGreater': "\u2AA2\u0338",
+	      'NotNestedLessLess': "\u2AA1\u0338",
+	      'notni': "\u220C",
+	      'notniva': "\u220C",
+	      'notnivb': "\u22FE",
+	      'notnivc': "\u22FD",
+	      'NotPrecedes': "\u2280",
+	      'NotPrecedesEqual': "\u2AAF\u0338",
+	      'NotPrecedesSlantEqual': "\u22E0",
+	      'NotReverseElement': "\u220C",
+	      'NotRightTriangle': "\u22EB",
+	      'NotRightTriangleBar': "\u29D0\u0338",
+	      'NotRightTriangleEqual': "\u22ED",
+	      'NotSquareSubset': "\u228F\u0338",
+	      'NotSquareSubsetEqual': "\u22E2",
+	      'NotSquareSuperset': "\u2290\u0338",
+	      'NotSquareSupersetEqual': "\u22E3",
+	      'NotSubset': "\u2282\u20D2",
+	      'NotSubsetEqual': "\u2288",
+	      'NotSucceeds': "\u2281",
+	      'NotSucceedsEqual': "\u2AB0\u0338",
+	      'NotSucceedsSlantEqual': "\u22E1",
+	      'NotSucceedsTilde': "\u227F\u0338",
+	      'NotSuperset': "\u2283\u20D2",
+	      'NotSupersetEqual': "\u2289",
+	      'NotTilde': "\u2241",
+	      'NotTildeEqual': "\u2244",
+	      'NotTildeFullEqual': "\u2247",
+	      'NotTildeTilde': "\u2249",
+	      'NotVerticalBar': "\u2224",
+	      'npar': "\u2226",
+	      'nparallel': "\u2226",
+	      'nparsl': "\u2AFD\u20E5",
+	      'npart': "\u2202\u0338",
+	      'npolint': "\u2A14",
+	      'npr': "\u2280",
+	      'nprcue': "\u22E0",
+	      'npre': "\u2AAF\u0338",
+	      'nprec': "\u2280",
+	      'npreceq': "\u2AAF\u0338",
+	      'nrarr': "\u219B",
+	      'nrArr': "\u21CF",
+	      'nrarrc': "\u2933\u0338",
+	      'nrarrw': "\u219D\u0338",
+	      'nrightarrow': "\u219B",
+	      'nRightarrow': "\u21CF",
+	      'nrtri': "\u22EB",
+	      'nrtrie': "\u22ED",
+	      'nsc': "\u2281",
+	      'nsccue': "\u22E1",
+	      'nsce': "\u2AB0\u0338",
+	      'nscr': "\uD835\uDCC3",
+	      'Nscr': "\uD835\uDCA9",
+	      'nshortmid': "\u2224",
+	      'nshortparallel': "\u2226",
+	      'nsim': "\u2241",
+	      'nsime': "\u2244",
+	      'nsimeq': "\u2244",
+	      'nsmid': "\u2224",
+	      'nspar': "\u2226",
+	      'nsqsube': "\u22E2",
+	      'nsqsupe': "\u22E3",
+	      'nsub': "\u2284",
+	      'nsube': "\u2288",
+	      'nsubE': "\u2AC5\u0338",
+	      'nsubset': "\u2282\u20D2",
+	      'nsubseteq': "\u2288",
+	      'nsubseteqq': "\u2AC5\u0338",
+	      'nsucc': "\u2281",
+	      'nsucceq': "\u2AB0\u0338",
+	      'nsup': "\u2285",
+	      'nsupe': "\u2289",
+	      'nsupE': "\u2AC6\u0338",
+	      'nsupset': "\u2283\u20D2",
+	      'nsupseteq': "\u2289",
+	      'nsupseteqq': "\u2AC6\u0338",
+	      'ntgl': "\u2279",
+	      'ntilde': '\xF1',
+	      'Ntilde': '\xD1',
+	      'ntlg': "\u2278",
+	      'ntriangleleft': "\u22EA",
+	      'ntrianglelefteq': "\u22EC",
+	      'ntriangleright': "\u22EB",
+	      'ntrianglerighteq': "\u22ED",
+	      'nu': "\u03BD",
+	      'Nu': "\u039D",
+	      'num': '#',
+	      'numero': "\u2116",
+	      'numsp': "\u2007",
+	      'nvap': "\u224D\u20D2",
+	      'nvdash': "\u22AC",
+	      'nvDash': "\u22AD",
+	      'nVdash': "\u22AE",
+	      'nVDash': "\u22AF",
+	      'nvge': "\u2265\u20D2",
+	      'nvgt': ">\u20D2",
+	      'nvHarr': "\u2904",
+	      'nvinfin': "\u29DE",
+	      'nvlArr': "\u2902",
+	      'nvle': "\u2264\u20D2",
+	      'nvlt': "<\u20D2",
+	      'nvltrie': "\u22B4\u20D2",
+	      'nvrArr': "\u2903",
+	      'nvrtrie': "\u22B5\u20D2",
+	      'nvsim': "\u223C\u20D2",
+	      'nwarhk': "\u2923",
+	      'nwarr': "\u2196",
+	      'nwArr': "\u21D6",
+	      'nwarrow': "\u2196",
+	      'nwnear': "\u2927",
+	      'oacute': '\xF3',
+	      'Oacute': '\xD3',
+	      'oast': "\u229B",
+	      'ocir': "\u229A",
+	      'ocirc': '\xF4',
+	      'Ocirc': '\xD4',
+	      'ocy': "\u043E",
+	      'Ocy': "\u041E",
+	      'odash': "\u229D",
+	      'odblac': "\u0151",
+	      'Odblac': "\u0150",
+	      'odiv': "\u2A38",
+	      'odot': "\u2299",
+	      'odsold': "\u29BC",
+	      'oelig': "\u0153",
+	      'OElig': "\u0152",
+	      'ofcir': "\u29BF",
+	      'ofr': "\uD835\uDD2C",
+	      'Ofr': "\uD835\uDD12",
+	      'ogon': "\u02DB",
+	      'ograve': '\xF2',
+	      'Ograve': '\xD2',
+	      'ogt': "\u29C1",
+	      'ohbar': "\u29B5",
+	      'ohm': "\u03A9",
+	      'oint': "\u222E",
+	      'olarr': "\u21BA",
+	      'olcir': "\u29BE",
+	      'olcross': "\u29BB",
+	      'oline': "\u203E",
+	      'olt': "\u29C0",
+	      'omacr': "\u014D",
+	      'Omacr': "\u014C",
+	      'omega': "\u03C9",
+	      'Omega': "\u03A9",
+	      'omicron': "\u03BF",
+	      'Omicron': "\u039F",
+	      'omid': "\u29B6",
+	      'ominus': "\u2296",
+	      'oopf': "\uD835\uDD60",
+	      'Oopf': "\uD835\uDD46",
+	      'opar': "\u29B7",
+	      'OpenCurlyDoubleQuote': "\u201C",
+	      'OpenCurlyQuote': "\u2018",
+	      'operp': "\u29B9",
+	      'oplus': "\u2295",
+	      'or': "\u2228",
+	      'Or': "\u2A54",
+	      'orarr': "\u21BB",
+	      'ord': "\u2A5D",
+	      'order': "\u2134",
+	      'orderof': "\u2134",
+	      'ordf': '\xAA',
+	      'ordm': '\xBA',
+	      'origof': "\u22B6",
+	      'oror': "\u2A56",
+	      'orslope': "\u2A57",
+	      'orv': "\u2A5B",
+	      'oS': "\u24C8",
+	      'oscr': "\u2134",
+	      'Oscr': "\uD835\uDCAA",
+	      'oslash': '\xF8',
+	      'Oslash': '\xD8',
+	      'osol': "\u2298",
+	      'otilde': '\xF5',
+	      'Otilde': '\xD5',
+	      'otimes': "\u2297",
+	      'Otimes': "\u2A37",
+	      'otimesas': "\u2A36",
+	      'ouml': '\xF6',
+	      'Ouml': '\xD6',
+	      'ovbar': "\u233D",
+	      'OverBar': "\u203E",
+	      'OverBrace': "\u23DE",
+	      'OverBracket': "\u23B4",
+	      'OverParenthesis': "\u23DC",
+	      'par': "\u2225",
+	      'para': '\xB6',
+	      'parallel': "\u2225",
+	      'parsim': "\u2AF3",
+	      'parsl': "\u2AFD",
+	      'part': "\u2202",
+	      'PartialD': "\u2202",
+	      'pcy': "\u043F",
+	      'Pcy': "\u041F",
+	      'percnt': '%',
+	      'period': '.',
+	      'permil': "\u2030",
+	      'perp': "\u22A5",
+	      'pertenk': "\u2031",
+	      'pfr': "\uD835\uDD2D",
+	      'Pfr': "\uD835\uDD13",
+	      'phi': "\u03C6",
+	      'Phi': "\u03A6",
+	      'phiv': "\u03D5",
+	      'phmmat': "\u2133",
+	      'phone': "\u260E",
+	      'pi': "\u03C0",
+	      'Pi': "\u03A0",
+	      'pitchfork': "\u22D4",
+	      'piv': "\u03D6",
+	      'planck': "\u210F",
+	      'planckh': "\u210E",
+	      'plankv': "\u210F",
+	      'plus': '+',
+	      'plusacir': "\u2A23",
+	      'plusb': "\u229E",
+	      'pluscir': "\u2A22",
+	      'plusdo': "\u2214",
+	      'plusdu': "\u2A25",
+	      'pluse': "\u2A72",
+	      'PlusMinus': '\xB1',
+	      'plusmn': '\xB1',
+	      'plussim': "\u2A26",
+	      'plustwo': "\u2A27",
+	      'pm': '\xB1',
+	      'Poincareplane': "\u210C",
+	      'pointint': "\u2A15",
+	      'popf': "\uD835\uDD61",
+	      'Popf': "\u2119",
+	      'pound': '\xA3',
+	      'pr': "\u227A",
+	      'Pr': "\u2ABB",
+	      'prap': "\u2AB7",
+	      'prcue': "\u227C",
+	      'pre': "\u2AAF",
+	      'prE': "\u2AB3",
+	      'prec': "\u227A",
+	      'precapprox': "\u2AB7",
+	      'preccurlyeq': "\u227C",
+	      'Precedes': "\u227A",
+	      'PrecedesEqual': "\u2AAF",
+	      'PrecedesSlantEqual': "\u227C",
+	      'PrecedesTilde': "\u227E",
+	      'preceq': "\u2AAF",
+	      'precnapprox': "\u2AB9",
+	      'precneqq': "\u2AB5",
+	      'precnsim': "\u22E8",
+	      'precsim': "\u227E",
+	      'prime': "\u2032",
+	      'Prime': "\u2033",
+	      'primes': "\u2119",
+	      'prnap': "\u2AB9",
+	      'prnE': "\u2AB5",
+	      'prnsim': "\u22E8",
+	      'prod': "\u220F",
+	      'Product': "\u220F",
+	      'profalar': "\u232E",
+	      'profline': "\u2312",
+	      'profsurf': "\u2313",
+	      'prop': "\u221D",
+	      'Proportion': "\u2237",
+	      'Proportional': "\u221D",
+	      'propto': "\u221D",
+	      'prsim': "\u227E",
+	      'prurel': "\u22B0",
+	      'pscr': "\uD835\uDCC5",
+	      'Pscr': "\uD835\uDCAB",
+	      'psi': "\u03C8",
+	      'Psi': "\u03A8",
+	      'puncsp': "\u2008",
+	      'qfr': "\uD835\uDD2E",
+	      'Qfr': "\uD835\uDD14",
+	      'qint': "\u2A0C",
+	      'qopf': "\uD835\uDD62",
+	      'Qopf': "\u211A",
+	      'qprime': "\u2057",
+	      'qscr': "\uD835\uDCC6",
+	      'Qscr': "\uD835\uDCAC",
+	      'quaternions': "\u210D",
+	      'quatint': "\u2A16",
+	      'quest': '?',
+	      'questeq': "\u225F",
+	      'quot': '"',
+	      'QUOT': '"',
+	      'rAarr': "\u21DB",
+	      'race': "\u223D\u0331",
+	      'racute': "\u0155",
+	      'Racute': "\u0154",
+	      'radic': "\u221A",
+	      'raemptyv': "\u29B3",
+	      'rang': "\u27E9",
+	      'Rang': "\u27EB",
+	      'rangd': "\u2992",
+	      'range': "\u29A5",
+	      'rangle': "\u27E9",
+	      'raquo': '\xBB',
+	      'rarr': "\u2192",
+	      'rArr': "\u21D2",
+	      'Rarr': "\u21A0",
+	      'rarrap': "\u2975",
+	      'rarrb': "\u21E5",
+	      'rarrbfs': "\u2920",
+	      'rarrc': "\u2933",
+	      'rarrfs': "\u291E",
+	      'rarrhk': "\u21AA",
+	      'rarrlp': "\u21AC",
+	      'rarrpl': "\u2945",
+	      'rarrsim': "\u2974",
+	      'rarrtl': "\u21A3",
+	      'Rarrtl': "\u2916",
+	      'rarrw': "\u219D",
+	      'ratail': "\u291A",
+	      'rAtail': "\u291C",
+	      'ratio': "\u2236",
+	      'rationals': "\u211A",
+	      'rbarr': "\u290D",
+	      'rBarr': "\u290F",
+	      'RBarr': "\u2910",
+	      'rbbrk': "\u2773",
+	      'rbrace': '}',
+	      'rbrack': ']',
+	      'rbrke': "\u298C",
+	      'rbrksld': "\u298E",
+	      'rbrkslu': "\u2990",
+	      'rcaron': "\u0159",
+	      'Rcaron': "\u0158",
+	      'rcedil': "\u0157",
+	      'Rcedil': "\u0156",
+	      'rceil': "\u2309",
+	      'rcub': '}',
+	      'rcy': "\u0440",
+	      'Rcy': "\u0420",
+	      'rdca': "\u2937",
+	      'rdldhar': "\u2969",
+	      'rdquo': "\u201D",
+	      'rdquor': "\u201D",
+	      'rdsh': "\u21B3",
+	      'Re': "\u211C",
+	      'real': "\u211C",
+	      'realine': "\u211B",
+	      'realpart': "\u211C",
+	      'reals': "\u211D",
+	      'rect': "\u25AD",
+	      'reg': '\xAE',
+	      'REG': '\xAE',
+	      'ReverseElement': "\u220B",
+	      'ReverseEquilibrium': "\u21CB",
+	      'ReverseUpEquilibrium': "\u296F",
+	      'rfisht': "\u297D",
+	      'rfloor': "\u230B",
+	      'rfr': "\uD835\uDD2F",
+	      'Rfr': "\u211C",
+	      'rHar': "\u2964",
+	      'rhard': "\u21C1",
+	      'rharu': "\u21C0",
+	      'rharul': "\u296C",
+	      'rho': "\u03C1",
+	      'Rho': "\u03A1",
+	      'rhov': "\u03F1",
+	      'RightAngleBracket': "\u27E9",
+	      'rightarrow': "\u2192",
+	      'Rightarrow': "\u21D2",
+	      'RightArrow': "\u2192",
+	      'RightArrowBar': "\u21E5",
+	      'RightArrowLeftArrow': "\u21C4",
+	      'rightarrowtail': "\u21A3",
+	      'RightCeiling': "\u2309",
+	      'RightDoubleBracket': "\u27E7",
+	      'RightDownTeeVector': "\u295D",
+	      'RightDownVector': "\u21C2",
+	      'RightDownVectorBar': "\u2955",
+	      'RightFloor': "\u230B",
+	      'rightharpoondown': "\u21C1",
+	      'rightharpoonup': "\u21C0",
+	      'rightleftarrows': "\u21C4",
+	      'rightleftharpoons': "\u21CC",
+	      'rightrightarrows': "\u21C9",
+	      'rightsquigarrow': "\u219D",
+	      'RightTee': "\u22A2",
+	      'RightTeeArrow': "\u21A6",
+	      'RightTeeVector': "\u295B",
+	      'rightthreetimes': "\u22CC",
+	      'RightTriangle': "\u22B3",
+	      'RightTriangleBar': "\u29D0",
+	      'RightTriangleEqual': "\u22B5",
+	      'RightUpDownVector': "\u294F",
+	      'RightUpTeeVector': "\u295C",
+	      'RightUpVector': "\u21BE",
+	      'RightUpVectorBar': "\u2954",
+	      'RightVector': "\u21C0",
+	      'RightVectorBar': "\u2953",
+	      'ring': "\u02DA",
+	      'risingdotseq': "\u2253",
+	      'rlarr': "\u21C4",
+	      'rlhar': "\u21CC",
+	      'rlm': "\u200F",
+	      'rmoust': "\u23B1",
+	      'rmoustache': "\u23B1",
+	      'rnmid': "\u2AEE",
+	      'roang': "\u27ED",
+	      'roarr': "\u21FE",
+	      'robrk': "\u27E7",
+	      'ropar': "\u2986",
+	      'ropf': "\uD835\uDD63",
+	      'Ropf': "\u211D",
+	      'roplus': "\u2A2E",
+	      'rotimes': "\u2A35",
+	      'RoundImplies': "\u2970",
+	      'rpar': ')',
+	      'rpargt': "\u2994",
+	      'rppolint': "\u2A12",
+	      'rrarr': "\u21C9",
+	      'Rrightarrow': "\u21DB",
+	      'rsaquo': "\u203A",
+	      'rscr': "\uD835\uDCC7",
+	      'Rscr': "\u211B",
+	      'rsh': "\u21B1",
+	      'Rsh': "\u21B1",
+	      'rsqb': ']',
+	      'rsquo': "\u2019",
+	      'rsquor': "\u2019",
+	      'rthree': "\u22CC",
+	      'rtimes': "\u22CA",
+	      'rtri': "\u25B9",
+	      'rtrie': "\u22B5",
+	      'rtrif': "\u25B8",
+	      'rtriltri': "\u29CE",
+	      'RuleDelayed': "\u29F4",
+	      'ruluhar': "\u2968",
+	      'rx': "\u211E",
+	      'sacute': "\u015B",
+	      'Sacute': "\u015A",
+	      'sbquo': "\u201A",
+	      'sc': "\u227B",
+	      'Sc': "\u2ABC",
+	      'scap': "\u2AB8",
+	      'scaron': "\u0161",
+	      'Scaron': "\u0160",
+	      'sccue': "\u227D",
+	      'sce': "\u2AB0",
+	      'scE': "\u2AB4",
+	      'scedil': "\u015F",
+	      'Scedil': "\u015E",
+	      'scirc': "\u015D",
+	      'Scirc': "\u015C",
+	      'scnap': "\u2ABA",
+	      'scnE': "\u2AB6",
+	      'scnsim': "\u22E9",
+	      'scpolint': "\u2A13",
+	      'scsim': "\u227F",
+	      'scy': "\u0441",
+	      'Scy': "\u0421",
+	      'sdot': "\u22C5",
+	      'sdotb': "\u22A1",
+	      'sdote': "\u2A66",
+	      'searhk': "\u2925",
+	      'searr': "\u2198",
+	      'seArr': "\u21D8",
+	      'searrow': "\u2198",
+	      'sect': '\xA7',
+	      'semi': ';',
+	      'seswar': "\u2929",
+	      'setminus': "\u2216",
+	      'setmn': "\u2216",
+	      'sext': "\u2736",
+	      'sfr': "\uD835\uDD30",
+	      'Sfr': "\uD835\uDD16",
+	      'sfrown': "\u2322",
+	      'sharp': "\u266F",
+	      'shchcy': "\u0449",
+	      'SHCHcy': "\u0429",
+	      'shcy': "\u0448",
+	      'SHcy': "\u0428",
+	      'ShortDownArrow': "\u2193",
+	      'ShortLeftArrow': "\u2190",
+	      'shortmid': "\u2223",
+	      'shortparallel': "\u2225",
+	      'ShortRightArrow': "\u2192",
+	      'ShortUpArrow': "\u2191",
+	      'shy': '\xAD',
+	      'sigma': "\u03C3",
+	      'Sigma': "\u03A3",
+	      'sigmaf': "\u03C2",
+	      'sigmav': "\u03C2",
+	      'sim': "\u223C",
+	      'simdot': "\u2A6A",
+	      'sime': "\u2243",
+	      'simeq': "\u2243",
+	      'simg': "\u2A9E",
+	      'simgE': "\u2AA0",
+	      'siml': "\u2A9D",
+	      'simlE': "\u2A9F",
+	      'simne': "\u2246",
+	      'simplus': "\u2A24",
+	      'simrarr': "\u2972",
+	      'slarr': "\u2190",
+	      'SmallCircle': "\u2218",
+	      'smallsetminus': "\u2216",
+	      'smashp': "\u2A33",
+	      'smeparsl': "\u29E4",
+	      'smid': "\u2223",
+	      'smile': "\u2323",
+	      'smt': "\u2AAA",
+	      'smte': "\u2AAC",
+	      'smtes': "\u2AAC\uFE00",
+	      'softcy': "\u044C",
+	      'SOFTcy': "\u042C",
+	      'sol': '/',
+	      'solb': "\u29C4",
+	      'solbar': "\u233F",
+	      'sopf': "\uD835\uDD64",
+	      'Sopf': "\uD835\uDD4A",
+	      'spades': "\u2660",
+	      'spadesuit': "\u2660",
+	      'spar': "\u2225",
+	      'sqcap': "\u2293",
+	      'sqcaps': "\u2293\uFE00",
+	      'sqcup': "\u2294",
+	      'sqcups': "\u2294\uFE00",
+	      'Sqrt': "\u221A",
+	      'sqsub': "\u228F",
+	      'sqsube': "\u2291",
+	      'sqsubset': "\u228F",
+	      'sqsubseteq': "\u2291",
+	      'sqsup': "\u2290",
+	      'sqsupe': "\u2292",
+	      'sqsupset': "\u2290",
+	      'sqsupseteq': "\u2292",
+	      'squ': "\u25A1",
+	      'square': "\u25A1",
+	      'Square': "\u25A1",
+	      'SquareIntersection': "\u2293",
+	      'SquareSubset': "\u228F",
+	      'SquareSubsetEqual': "\u2291",
+	      'SquareSuperset': "\u2290",
+	      'SquareSupersetEqual': "\u2292",
+	      'SquareUnion': "\u2294",
+	      'squarf': "\u25AA",
+	      'squf': "\u25AA",
+	      'srarr': "\u2192",
+	      'sscr': "\uD835\uDCC8",
+	      'Sscr': "\uD835\uDCAE",
+	      'ssetmn': "\u2216",
+	      'ssmile': "\u2323",
+	      'sstarf': "\u22C6",
+	      'star': "\u2606",
+	      'Star': "\u22C6",
+	      'starf': "\u2605",
+	      'straightepsilon': "\u03F5",
+	      'straightphi': "\u03D5",
+	      'strns': '\xAF',
+	      'sub': "\u2282",
+	      'Sub': "\u22D0",
+	      'subdot': "\u2ABD",
+	      'sube': "\u2286",
+	      'subE': "\u2AC5",
+	      'subedot': "\u2AC3",
+	      'submult': "\u2AC1",
+	      'subne': "\u228A",
+	      'subnE': "\u2ACB",
+	      'subplus': "\u2ABF",
+	      'subrarr': "\u2979",
+	      'subset': "\u2282",
+	      'Subset': "\u22D0",
+	      'subseteq': "\u2286",
+	      'subseteqq': "\u2AC5",
+	      'SubsetEqual': "\u2286",
+	      'subsetneq': "\u228A",
+	      'subsetneqq': "\u2ACB",
+	      'subsim': "\u2AC7",
+	      'subsub': "\u2AD5",
+	      'subsup': "\u2AD3",
+	      'succ': "\u227B",
+	      'succapprox': "\u2AB8",
+	      'succcurlyeq': "\u227D",
+	      'Succeeds': "\u227B",
+	      'SucceedsEqual': "\u2AB0",
+	      'SucceedsSlantEqual': "\u227D",
+	      'SucceedsTilde': "\u227F",
+	      'succeq': "\u2AB0",
+	      'succnapprox': "\u2ABA",
+	      'succneqq': "\u2AB6",
+	      'succnsim': "\u22E9",
+	      'succsim': "\u227F",
+	      'SuchThat': "\u220B",
+	      'sum': "\u2211",
+	      'Sum': "\u2211",
+	      'sung': "\u266A",
+	      'sup': "\u2283",
+	      'Sup': "\u22D1",
+	      'sup1': '\xB9',
+	      'sup2': '\xB2',
+	      'sup3': '\xB3',
+	      'supdot': "\u2ABE",
+	      'supdsub': "\u2AD8",
+	      'supe': "\u2287",
+	      'supE': "\u2AC6",
+	      'supedot': "\u2AC4",
+	      'Superset': "\u2283",
+	      'SupersetEqual': "\u2287",
+	      'suphsol': "\u27C9",
+	      'suphsub': "\u2AD7",
+	      'suplarr': "\u297B",
+	      'supmult': "\u2AC2",
+	      'supne': "\u228B",
+	      'supnE': "\u2ACC",
+	      'supplus': "\u2AC0",
+	      'supset': "\u2283",
+	      'Supset': "\u22D1",
+	      'supseteq': "\u2287",
+	      'supseteqq': "\u2AC6",
+	      'supsetneq': "\u228B",
+	      'supsetneqq': "\u2ACC",
+	      'supsim': "\u2AC8",
+	      'supsub': "\u2AD4",
+	      'supsup': "\u2AD6",
+	      'swarhk': "\u2926",
+	      'swarr': "\u2199",
+	      'swArr': "\u21D9",
+	      'swarrow': "\u2199",
+	      'swnwar': "\u292A",
+	      'szlig': '\xDF',
+	      'Tab': '\t',
+	      'target': "\u2316",
+	      'tau': "\u03C4",
+	      'Tau': "\u03A4",
+	      'tbrk': "\u23B4",
+	      'tcaron': "\u0165",
+	      'Tcaron': "\u0164",
+	      'tcedil': "\u0163",
+	      'Tcedil': "\u0162",
+	      'tcy': "\u0442",
+	      'Tcy': "\u0422",
+	      'tdot': "\u20DB",
+	      'telrec': "\u2315",
+	      'tfr': "\uD835\uDD31",
+	      'Tfr': "\uD835\uDD17",
+	      'there4': "\u2234",
+	      'therefore': "\u2234",
+	      'Therefore': "\u2234",
+	      'theta': "\u03B8",
+	      'Theta': "\u0398",
+	      'thetasym': "\u03D1",
+	      'thetav': "\u03D1",
+	      'thickapprox': "\u2248",
+	      'thicksim': "\u223C",
+	      'ThickSpace': "\u205F\u200A",
+	      'thinsp': "\u2009",
+	      'ThinSpace': "\u2009",
+	      'thkap': "\u2248",
+	      'thksim': "\u223C",
+	      'thorn': '\xFE',
+	      'THORN': '\xDE',
+	      'tilde': "\u02DC",
+	      'Tilde': "\u223C",
+	      'TildeEqual': "\u2243",
+	      'TildeFullEqual': "\u2245",
+	      'TildeTilde': "\u2248",
+	      'times': '\xD7',
+	      'timesb': "\u22A0",
+	      'timesbar': "\u2A31",
+	      'timesd': "\u2A30",
+	      'tint': "\u222D",
+	      'toea': "\u2928",
+	      'top': "\u22A4",
+	      'topbot': "\u2336",
+	      'topcir': "\u2AF1",
+	      'topf': "\uD835\uDD65",
+	      'Topf': "\uD835\uDD4B",
+	      'topfork': "\u2ADA",
+	      'tosa': "\u2929",
+	      'tprime': "\u2034",
+	      'trade': "\u2122",
+	      'TRADE': "\u2122",
+	      'triangle': "\u25B5",
+	      'triangledown': "\u25BF",
+	      'triangleleft': "\u25C3",
+	      'trianglelefteq': "\u22B4",
+	      'triangleq': "\u225C",
+	      'triangleright': "\u25B9",
+	      'trianglerighteq': "\u22B5",
+	      'tridot': "\u25EC",
+	      'trie': "\u225C",
+	      'triminus': "\u2A3A",
+	      'TripleDot': "\u20DB",
+	      'triplus': "\u2A39",
+	      'trisb': "\u29CD",
+	      'tritime': "\u2A3B",
+	      'trpezium': "\u23E2",
+	      'tscr': "\uD835\uDCC9",
+	      'Tscr': "\uD835\uDCAF",
+	      'tscy': "\u0446",
+	      'TScy': "\u0426",
+	      'tshcy': "\u045B",
+	      'TSHcy': "\u040B",
+	      'tstrok': "\u0167",
+	      'Tstrok': "\u0166",
+	      'twixt': "\u226C",
+	      'twoheadleftarrow': "\u219E",
+	      'twoheadrightarrow': "\u21A0",
+	      'uacute': '\xFA',
+	      'Uacute': '\xDA',
+	      'uarr': "\u2191",
+	      'uArr': "\u21D1",
+	      'Uarr': "\u219F",
+	      'Uarrocir': "\u2949",
+	      'ubrcy': "\u045E",
+	      'Ubrcy': "\u040E",
+	      'ubreve': "\u016D",
+	      'Ubreve': "\u016C",
+	      'ucirc': '\xFB',
+	      'Ucirc': '\xDB',
+	      'ucy': "\u0443",
+	      'Ucy': "\u0423",
+	      'udarr': "\u21C5",
+	      'udblac': "\u0171",
+	      'Udblac': "\u0170",
+	      'udhar': "\u296E",
+	      'ufisht': "\u297E",
+	      'ufr': "\uD835\uDD32",
+	      'Ufr': "\uD835\uDD18",
+	      'ugrave': '\xF9',
+	      'Ugrave': '\xD9',
+	      'uHar': "\u2963",
+	      'uharl': "\u21BF",
+	      'uharr': "\u21BE",
+	      'uhblk': "\u2580",
+	      'ulcorn': "\u231C",
+	      'ulcorner': "\u231C",
+	      'ulcrop': "\u230F",
+	      'ultri': "\u25F8",
+	      'umacr': "\u016B",
+	      'Umacr': "\u016A",
+	      'uml': '\xA8',
+	      'UnderBar': '_',
+	      'UnderBrace': "\u23DF",
+	      'UnderBracket': "\u23B5",
+	      'UnderParenthesis': "\u23DD",
+	      'Union': "\u22C3",
+	      'UnionPlus': "\u228E",
+	      'uogon': "\u0173",
+	      'Uogon': "\u0172",
+	      'uopf': "\uD835\uDD66",
+	      'Uopf': "\uD835\uDD4C",
+	      'uparrow': "\u2191",
+	      'Uparrow': "\u21D1",
+	      'UpArrow': "\u2191",
+	      'UpArrowBar': "\u2912",
+	      'UpArrowDownArrow': "\u21C5",
+	      'updownarrow': "\u2195",
+	      'Updownarrow': "\u21D5",
+	      'UpDownArrow': "\u2195",
+	      'UpEquilibrium': "\u296E",
+	      'upharpoonleft': "\u21BF",
+	      'upharpoonright': "\u21BE",
+	      'uplus': "\u228E",
+	      'UpperLeftArrow': "\u2196",
+	      'UpperRightArrow': "\u2197",
+	      'upsi': "\u03C5",
+	      'Upsi': "\u03D2",
+	      'upsih': "\u03D2",
+	      'upsilon': "\u03C5",
+	      'Upsilon': "\u03A5",
+	      'UpTee': "\u22A5",
+	      'UpTeeArrow': "\u21A5",
+	      'upuparrows': "\u21C8",
+	      'urcorn': "\u231D",
+	      'urcorner': "\u231D",
+	      'urcrop': "\u230E",
+	      'uring': "\u016F",
+	      'Uring': "\u016E",
+	      'urtri': "\u25F9",
+	      'uscr': "\uD835\uDCCA",
+	      'Uscr': "\uD835\uDCB0",
+	      'utdot': "\u22F0",
+	      'utilde': "\u0169",
+	      'Utilde': "\u0168",
+	      'utri': "\u25B5",
+	      'utrif': "\u25B4",
+	      'uuarr': "\u21C8",
+	      'uuml': '\xFC',
+	      'Uuml': '\xDC',
+	      'uwangle': "\u29A7",
+	      'vangrt': "\u299C",
+	      'varepsilon': "\u03F5",
+	      'varkappa': "\u03F0",
+	      'varnothing': "\u2205",
+	      'varphi': "\u03D5",
+	      'varpi': "\u03D6",
+	      'varpropto': "\u221D",
+	      'varr': "\u2195",
+	      'vArr': "\u21D5",
+	      'varrho': "\u03F1",
+	      'varsigma': "\u03C2",
+	      'varsubsetneq': "\u228A\uFE00",
+	      'varsubsetneqq': "\u2ACB\uFE00",
+	      'varsupsetneq': "\u228B\uFE00",
+	      'varsupsetneqq': "\u2ACC\uFE00",
+	      'vartheta': "\u03D1",
+	      'vartriangleleft': "\u22B2",
+	      'vartriangleright': "\u22B3",
+	      'vBar': "\u2AE8",
+	      'Vbar': "\u2AEB",
+	      'vBarv': "\u2AE9",
+	      'vcy': "\u0432",
+	      'Vcy': "\u0412",
+	      'vdash': "\u22A2",
+	      'vDash': "\u22A8",
+	      'Vdash': "\u22A9",
+	      'VDash': "\u22AB",
+	      'Vdashl': "\u2AE6",
+	      'vee': "\u2228",
+	      'Vee': "\u22C1",
+	      'veebar': "\u22BB",
+	      'veeeq': "\u225A",
+	      'vellip': "\u22EE",
+	      'verbar': '|',
+	      'Verbar': "\u2016",
+	      'vert': '|',
+	      'Vert': "\u2016",
+	      'VerticalBar': "\u2223",
+	      'VerticalLine': '|',
+	      'VerticalSeparator': "\u2758",
+	      'VerticalTilde': "\u2240",
+	      'VeryThinSpace': "\u200A",
+	      'vfr': "\uD835\uDD33",
+	      'Vfr': "\uD835\uDD19",
+	      'vltri': "\u22B2",
+	      'vnsub': "\u2282\u20D2",
+	      'vnsup': "\u2283\u20D2",
+	      'vopf': "\uD835\uDD67",
+	      'Vopf': "\uD835\uDD4D",
+	      'vprop': "\u221D",
+	      'vrtri': "\u22B3",
+	      'vscr': "\uD835\uDCCB",
+	      'Vscr': "\uD835\uDCB1",
+	      'vsubne': "\u228A\uFE00",
+	      'vsubnE': "\u2ACB\uFE00",
+	      'vsupne': "\u228B\uFE00",
+	      'vsupnE': "\u2ACC\uFE00",
+	      'Vvdash': "\u22AA",
+	      'vzigzag': "\u299A",
+	      'wcirc': "\u0175",
+	      'Wcirc': "\u0174",
+	      'wedbar': "\u2A5F",
+	      'wedge': "\u2227",
+	      'Wedge': "\u22C0",
+	      'wedgeq': "\u2259",
+	      'weierp': "\u2118",
+	      'wfr': "\uD835\uDD34",
+	      'Wfr': "\uD835\uDD1A",
+	      'wopf': "\uD835\uDD68",
+	      'Wopf': "\uD835\uDD4E",
+	      'wp': "\u2118",
+	      'wr': "\u2240",
+	      'wreath': "\u2240",
+	      'wscr': "\uD835\uDCCC",
+	      'Wscr': "\uD835\uDCB2",
+	      'xcap': "\u22C2",
+	      'xcirc': "\u25EF",
+	      'xcup': "\u22C3",
+	      'xdtri': "\u25BD",
+	      'xfr': "\uD835\uDD35",
+	      'Xfr': "\uD835\uDD1B",
+	      'xharr': "\u27F7",
+	      'xhArr': "\u27FA",
+	      'xi': "\u03BE",
+	      'Xi': "\u039E",
+	      'xlarr': "\u27F5",
+	      'xlArr': "\u27F8",
+	      'xmap': "\u27FC",
+	      'xnis': "\u22FB",
+	      'xodot': "\u2A00",
+	      'xopf': "\uD835\uDD69",
+	      'Xopf': "\uD835\uDD4F",
+	      'xoplus': "\u2A01",
+	      'xotime': "\u2A02",
+	      'xrarr': "\u27F6",
+	      'xrArr': "\u27F9",
+	      'xscr': "\uD835\uDCCD",
+	      'Xscr': "\uD835\uDCB3",
+	      'xsqcup': "\u2A06",
+	      'xuplus': "\u2A04",
+	      'xutri': "\u25B3",
+	      'xvee': "\u22C1",
+	      'xwedge': "\u22C0",
+	      'yacute': '\xFD',
+	      'Yacute': '\xDD',
+	      'yacy': "\u044F",
+	      'YAcy': "\u042F",
+	      'ycirc': "\u0177",
+	      'Ycirc': "\u0176",
+	      'ycy': "\u044B",
+	      'Ycy': "\u042B",
+	      'yen': '\xA5',
+	      'yfr': "\uD835\uDD36",
+	      'Yfr': "\uD835\uDD1C",
+	      'yicy': "\u0457",
+	      'YIcy': "\u0407",
+	      'yopf': "\uD835\uDD6A",
+	      'Yopf': "\uD835\uDD50",
+	      'yscr': "\uD835\uDCCE",
+	      'Yscr': "\uD835\uDCB4",
+	      'yucy': "\u044E",
+	      'YUcy': "\u042E",
+	      'yuml': '\xFF',
+	      'Yuml': "\u0178",
+	      'zacute': "\u017A",
+	      'Zacute': "\u0179",
+	      'zcaron': "\u017E",
+	      'Zcaron': "\u017D",
+	      'zcy': "\u0437",
+	      'Zcy': "\u0417",
+	      'zdot': "\u017C",
+	      'Zdot': "\u017B",
+	      'zeetrf': "\u2128",
+	      'ZeroWidthSpace': "\u200B",
+	      'zeta': "\u03B6",
+	      'Zeta': "\u0396",
+	      'zfr': "\uD835\uDD37",
+	      'Zfr': "\u2128",
+	      'zhcy': "\u0436",
+	      'ZHcy': "\u0416",
+	      'zigrarr': "\u21DD",
+	      'zopf': "\uD835\uDD6B",
+	      'Zopf': "\u2124",
+	      'zscr': "\uD835\uDCCF",
+	      'Zscr': "\uD835\uDCB5",
+	      'zwj': "\u200D",
+	      'zwnj': "\u200C"
+	    };
+	    var decodeMapLegacy = {
+	      'aacute': '\xE1',
+	      'Aacute': '\xC1',
+	      'acirc': '\xE2',
+	      'Acirc': '\xC2',
+	      'acute': '\xB4',
+	      'aelig': '\xE6',
+	      'AElig': '\xC6',
+	      'agrave': '\xE0',
+	      'Agrave': '\xC0',
+	      'amp': '&',
+	      'AMP': '&',
+	      'aring': '\xE5',
+	      'Aring': '\xC5',
+	      'atilde': '\xE3',
+	      'Atilde': '\xC3',
+	      'auml': '\xE4',
+	      'Auml': '\xC4',
+	      'brvbar': '\xA6',
+	      'ccedil': '\xE7',
+	      'Ccedil': '\xC7',
+	      'cedil': '\xB8',
+	      'cent': '\xA2',
+	      'copy': '\xA9',
+	      'COPY': '\xA9',
+	      'curren': '\xA4',
+	      'deg': '\xB0',
+	      'divide': '\xF7',
+	      'eacute': '\xE9',
+	      'Eacute': '\xC9',
+	      'ecirc': '\xEA',
+	      'Ecirc': '\xCA',
+	      'egrave': '\xE8',
+	      'Egrave': '\xC8',
+	      'eth': '\xF0',
+	      'ETH': '\xD0',
+	      'euml': '\xEB',
+	      'Euml': '\xCB',
+	      'frac12': '\xBD',
+	      'frac14': '\xBC',
+	      'frac34': '\xBE',
+	      'gt': '>',
+	      'GT': '>',
+	      'iacute': '\xED',
+	      'Iacute': '\xCD',
+	      'icirc': '\xEE',
+	      'Icirc': '\xCE',
+	      'iexcl': '\xA1',
+	      'igrave': '\xEC',
+	      'Igrave': '\xCC',
+	      'iquest': '\xBF',
+	      'iuml': '\xEF',
+	      'Iuml': '\xCF',
+	      'laquo': '\xAB',
+	      'lt': '<',
+	      'LT': '<',
+	      'macr': '\xAF',
+	      'micro': '\xB5',
+	      'middot': '\xB7',
+	      'nbsp': '\xA0',
+	      'not': '\xAC',
+	      'ntilde': '\xF1',
+	      'Ntilde': '\xD1',
+	      'oacute': '\xF3',
+	      'Oacute': '\xD3',
+	      'ocirc': '\xF4',
+	      'Ocirc': '\xD4',
+	      'ograve': '\xF2',
+	      'Ograve': '\xD2',
+	      'ordf': '\xAA',
+	      'ordm': '\xBA',
+	      'oslash': '\xF8',
+	      'Oslash': '\xD8',
+	      'otilde': '\xF5',
+	      'Otilde': '\xD5',
+	      'ouml': '\xF6',
+	      'Ouml': '\xD6',
+	      'para': '\xB6',
+	      'plusmn': '\xB1',
+	      'pound': '\xA3',
+	      'quot': '"',
+	      'QUOT': '"',
+	      'raquo': '\xBB',
+	      'reg': '\xAE',
+	      'REG': '\xAE',
+	      'sect': '\xA7',
+	      'shy': '\xAD',
+	      'sup1': '\xB9',
+	      'sup2': '\xB2',
+	      'sup3': '\xB3',
+	      'szlig': '\xDF',
+	      'thorn': '\xFE',
+	      'THORN': '\xDE',
+	      'times': '\xD7',
+	      'uacute': '\xFA',
+	      'Uacute': '\xDA',
+	      'ucirc': '\xFB',
+	      'Ucirc': '\xDB',
+	      'ugrave': '\xF9',
+	      'Ugrave': '\xD9',
+	      'uml': '\xA8',
+	      'uuml': '\xFC',
+	      'Uuml': '\xDC',
+	      'yacute': '\xFD',
+	      'Yacute': '\xDD',
+	      'yen': '\xA5',
+	      'yuml': '\xFF'
+	    };
+	    var decodeMapNumeric = {
+	      '0': "\uFFFD",
+	      '128': "\u20AC",
+	      '130': "\u201A",
+	      '131': "\u0192",
+	      '132': "\u201E",
+	      '133': "\u2026",
+	      '134': "\u2020",
+	      '135': "\u2021",
+	      '136': "\u02C6",
+	      '137': "\u2030",
+	      '138': "\u0160",
+	      '139': "\u2039",
+	      '140': "\u0152",
+	      '142': "\u017D",
+	      '145': "\u2018",
+	      '146': "\u2019",
+	      '147': "\u201C",
+	      '148': "\u201D",
+	      '149': "\u2022",
+	      '150': "\u2013",
+	      '151': "\u2014",
+	      '152': "\u02DC",
+	      '153': "\u2122",
+	      '154': "\u0161",
+	      '155': "\u203A",
+	      '156': "\u0153",
+	      '158': "\u017E",
+	      '159': "\u0178"
+	    };
+	    var invalidReferenceCodePoints = [1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 64976, 64977, 64978, 64979, 64980, 64981, 64982, 64983, 64984, 64985, 64986, 64987, 64988, 64989, 64990, 64991, 64992, 64993, 64994, 64995, 64996, 64997, 64998, 64999, 65000, 65001, 65002, 65003, 65004, 65005, 65006, 65007, 65534, 65535, 131070, 131071, 196606, 196607, 262142, 262143, 327678, 327679, 393214, 393215, 458750, 458751, 524286, 524287, 589822, 589823, 655358, 655359, 720894, 720895, 786430, 786431, 851966, 851967, 917502, 917503, 983038, 983039, 1048574, 1048575, 1114110, 1114111];
+	    /*--------------------------------------------------------------------------*/
+
+	    var stringFromCharCode = String.fromCharCode;
+	    var object = {};
+	    var hasOwnProperty = object.hasOwnProperty;
+
+	    var has = function has(object, propertyName) {
+	      return hasOwnProperty.call(object, propertyName);
+	    };
+
+	    var contains = function contains(array, value) {
+	      var index = -1;
+	      var length = array.length;
+
+	      while (++index < length) {
+	        if (array[index] == value) {
+	          return true;
+	        }
+	      }
+
+	      return false;
+	    };
+
+	    var merge = function merge(options, defaults) {
+	      if (!options) {
+	        return defaults;
+	      }
+
+	      var result = {};
+	      var key;
+
+	      for (key in defaults) {
+	        // A `hasOwnProperty` check is not needed here, since only recognized
+	        // option names are used anyway. Any others are ignored.
+	        result[key] = has(options, key) ? options[key] : defaults[key];
+	      }
+
+	      return result;
+	    }; // Modified version of `ucs2encode`; see https://mths.be/punycode.
+
+
+	    var codePointToSymbol = function codePointToSymbol(codePoint, strict) {
+	      var output = '';
+
+	      if (codePoint >= 0xD800 && codePoint <= 0xDFFF || codePoint > 0x10FFFF) {
+	        // See issue #4:
+	        // “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
+	        // greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
+	        // REPLACEMENT CHARACTER.”
+	        if (strict) {
+	          parseError('character reference outside the permissible Unicode range');
+	        }
+
+	        return "\uFFFD";
+	      }
+
+	      if (has(decodeMapNumeric, codePoint)) {
+	        if (strict) {
+	          parseError('disallowed character reference');
+	        }
+
+	        return decodeMapNumeric[codePoint];
+	      }
+
+	      if (strict && contains(invalidReferenceCodePoints, codePoint)) {
+	        parseError('disallowed character reference');
+	      }
+
+	      if (codePoint > 0xFFFF) {
+	        codePoint -= 0x10000;
+	        output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
+	        codePoint = 0xDC00 | codePoint & 0x3FF;
+	      }
+
+	      output += stringFromCharCode(codePoint);
+	      return output;
+	    };
+
+	    var hexEscape = function hexEscape(codePoint) {
+	      return '&#x' + codePoint.toString(16).toUpperCase() + ';';
+	    };
+
+	    var decEscape = function decEscape(codePoint) {
+	      return '&#' + codePoint + ';';
+	    };
+
+	    var parseError = function parseError(message) {
+	      throw Error('Parse error: ' + message);
+	    };
+	    /*--------------------------------------------------------------------------*/
+
+
+	    var encode = function encode(string, options) {
+	      options = merge(options, encode.options);
+	      var strict = options.strict;
+
+	      if (strict && regexInvalidRawCodePoint.test(string)) {
+	        parseError('forbidden code point');
+	      }
+
+	      var encodeEverything = options.encodeEverything;
+	      var useNamedReferences = options.useNamedReferences;
+	      var allowUnsafeSymbols = options.allowUnsafeSymbols;
+	      var escapeCodePoint = options.decimal ? decEscape : hexEscape;
+
+	      var escapeBmpSymbol = function escapeBmpSymbol(symbol) {
+	        return escapeCodePoint(symbol.charCodeAt(0));
+	      };
+
+	      if (encodeEverything) {
+	        // Encode ASCII symbols.
+	        string = string.replace(regexAsciiWhitelist, function (symbol) {
+	          // Use named references if requested & possible.
+	          if (useNamedReferences && has(encodeMap, symbol)) {
+	            return '&' + encodeMap[symbol] + ';';
+	          }
+
+	          return escapeBmpSymbol(symbol);
+	        }); // Shorten a few escapes that represent two symbols, of which at least one
+	        // is within the ASCII range.
+
+	        if (useNamedReferences) {
+	          string = string.replace(/&gt;\u20D2/g, '&nvgt;').replace(/&lt;\u20D2/g, '&nvlt;').replace(/&#x66;&#x6A;/g, '&fjlig;');
+	        } // Encode non-ASCII symbols.
+
+
+	        if (useNamedReferences) {
+	          // Encode non-ASCII symbols that can be replaced with a named reference.
+	          string = string.replace(regexEncodeNonAscii, function (string) {
+	            // Note: there is no need to check `has(encodeMap, string)` here.
+	            return '&' + encodeMap[string] + ';';
+	          });
+	        } // Note: any remaining non-ASCII symbols are handled outside of the `if`.
+
+	      } else if (useNamedReferences) {
+	        // Apply named character references.
+	        // Encode `<>"'&` using named character references.
+	        if (!allowUnsafeSymbols) {
+	          string = string.replace(regexEscape, function (string) {
+	            return '&' + encodeMap[string] + ';'; // no need to check `has()` here
+	          });
+	        } // Shorten escapes that represent two symbols, of which at least one is
+	        // `<>"'&`.
+
+
+	        string = string.replace(/&gt;\u20D2/g, '&nvgt;').replace(/&lt;\u20D2/g, '&nvlt;'); // Encode non-ASCII symbols that can be replaced with a named reference.
+
+	        string = string.replace(regexEncodeNonAscii, function (string) {
+	          // Note: there is no need to check `has(encodeMap, string)` here.
+	          return '&' + encodeMap[string] + ';';
+	        });
+	      } else if (!allowUnsafeSymbols) {
+	        // Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
+	        // using named character references.
+	        string = string.replace(regexEscape, escapeBmpSymbol);
+	      }
+
+	      return string // Encode astral symbols.
+	      .replace(regexAstralSymbols, function ($0) {
+	        // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+	        var high = $0.charCodeAt(0);
+	        var low = $0.charCodeAt(1);
+	        var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
+	        return escapeCodePoint(codePoint);
+	      }) // Encode any remaining BMP symbols that are not printable ASCII symbols
+	      // using a hexadecimal escape.
+	      .replace(regexBmpWhitelist, escapeBmpSymbol);
+	    }; // Expose default options (so they can be overridden globally).
+
+
+	    encode.options = {
+	      'allowUnsafeSymbols': false,
+	      'encodeEverything': false,
+	      'strict': false,
+	      'useNamedReferences': false,
+	      'decimal': false
+	    };
+
+	    var decode = function decode(html, options) {
+	      options = merge(options, decode.options);
+	      var strict = options.strict;
+
+	      if (strict && regexInvalidEntity.test(html)) {
+	        parseError('malformed character reference');
+	      }
+
+	      return html.replace(regexDecode, function ($0, $1, $2, $3, $4, $5, $6, $7, $8) {
+	        var codePoint;
+	        var semicolon;
+	        var decDigits;
+	        var hexDigits;
+	        var reference;
+	        var next;
+
+	        if ($1) {
+	          reference = $1; // Note: there is no need to check `has(decodeMap, reference)`.
+
+	          return decodeMap[reference];
+	        }
+
+	        if ($2) {
+	          // Decode named character references without trailing `;`, e.g. `&amp`.
+	          // This is only a parse error if it gets converted to `&`, or if it is
+	          // followed by `=` in an attribute context.
+	          reference = $2;
+	          next = $3;
+
+	          if (next && options.isAttributeValue) {
+	            if (strict && next == '=') {
+	              parseError('`&` did not start a character reference');
+	            }
+
+	            return $0;
+	          } else {
+	            if (strict) {
+	              parseError('named character reference was not terminated by a semicolon');
+	            } // Note: there is no need to check `has(decodeMapLegacy, reference)`.
+
+
+	            return decodeMapLegacy[reference] + (next || '');
+	          }
+	        }
+
+	        if ($4) {
+	          // Decode decimal escapes, e.g. `&#119558;`.
+	          decDigits = $4;
+	          semicolon = $5;
+
+	          if (strict && !semicolon) {
+	            parseError('character reference was not terminated by a semicolon');
+	          }
+
+	          codePoint = parseInt(decDigits, 10);
+	          return codePointToSymbol(codePoint, strict);
+	        }
+
+	        if ($6) {
+	          // Decode hexadecimal escapes, e.g. `&#x1D306;`.
+	          hexDigits = $6;
+	          semicolon = $7;
+
+	          if (strict && !semicolon) {
+	            parseError('character reference was not terminated by a semicolon');
+	          }
+
+	          codePoint = parseInt(hexDigits, 16);
+	          return codePointToSymbol(codePoint, strict);
+	        } // If we’re still here, `if ($7)` is implied; it’s an ambiguous
+	        // ampersand for sure. https://mths.be/notes/ambiguous-ampersands
+
+
+	        if (strict) {
+	          parseError('named character reference was not terminated by a semicolon');
+	        }
+
+	        return $0;
+	      });
+	    }; // Expose default options (so they can be overridden globally).
+
+
+	    decode.options = {
+	      'isAttributeValue': false,
+	      'strict': false
+	    };
+
+	    var escape = function escape(string) {
+	      return string.replace(regexEscape, function ($0) {
+	        // Note: there is no need to check `has(escapeMap, $0)` here.
+	        return escapeMap[$0];
+	      });
+	    };
+	    /*--------------------------------------------------------------------------*/
+
+
+	    var he = {
+	      'version': '1.2.0',
+	      'encode': encode,
+	      'decode': decode,
+	      'escape': escape,
+	      'unescape': decode
+	    }; // Some AMD build optimizers, like r.js, check for specific condition patterns
+	    // like the following:
+
+	    if (freeExports && !freeExports.nodeType) {
+	      if (freeModule) {
+	        // in Node.js, io.js, or RingoJS v0.8.0+
+	        freeModule.exports = he;
+	      } else {
+	        // in Narwhal or RingoJS v0.7.0-
+	        for (var key in he) {
+	          has(he, key) && (freeExports[key] = he[key]);
+	        }
+	      }
+	    } else {
+	      // in Rhino or a web browser
+	      root.he = he;
+	    }
+	  })(commonjsGlobal);
+	});
+
+	var utils = createCommonjsModule(function (module, exports) {
+	  /**
+	   * Various utility functions used throughout Mocha's codebase.
+	   * @module utils
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var nanoid = nonSecure.nanoid;
+	  var MOCHA_ID_PROP_NAME = '__mocha_id__';
+	  /**
+	   * Inherit the prototype methods from one constructor into another.
+	   *
+	   * @param {function} ctor - Constructor function which needs to inherit the
+	   *     prototype.
+	   * @param {function} superCtor - Constructor function to inherit prototype from.
+	   * @throws {TypeError} if either constructor is null, or if super constructor
+	   *     lacks a prototype.
+	   */
+
+	  exports.inherits = util.inherits;
+	  /**
+	   * Escape special characters in the given string of html.
+	   *
+	   * @private
+	   * @param  {string} html
+	   * @return {string}
+	   */
+
+	  exports.escape = function (html) {
+	    return he.encode(String(html), {
+	      useNamedReferences: false
+	    });
+	  };
+	  /**
+	   * Test if the given obj is type of string.
+	   *
+	   * @private
+	   * @param {Object} obj
+	   * @return {boolean}
+	   */
+
+
+	  exports.isString = function (obj) {
+	    return typeof obj === 'string';
+	  };
+	  /**
+	   * Compute a slug from the given `str`.
+	   *
+	   * @private
+	   * @param {string} str
+	   * @return {string}
+	   */
+
+
+	  exports.slug = function (str) {
+	    return str.toLowerCase().replace(/\s+/g, '-').replace(/[^-\w]/g, '').replace(/-{2,}/g, '-');
+	  };
+	  /**
+	   * Strip the function definition from `str`, and re-indent for pre whitespace.
+	   *
+	   * @param {string} str
+	   * @return {string}
+	   */
+
+
+	  exports.clean = function (str) {
+	    str = str.replace(/\r\n?|[\n\u2028\u2029]/g, '\n').replace(/^\uFEFF/, '') // (traditional)->  space/name     parameters    body     (lambda)-> parameters       body   multi-statement/single          keep body content
+	    .replace(/^function(?:\s*|\s+[^(]*)\([^)]*\)\s*\{((?:.|\n)*?)\s*\}$|^\([^)]*\)\s*=>\s*(?:\{((?:.|\n)*?)\s*\}|((?:.|\n)*))$/, '$1$2$3');
+	    var spaces = str.match(/^\n?( *)/)[1].length;
+	    var tabs = str.match(/^\n?(\t*)/)[1].length;
+	    var re = new RegExp('^\n?' + (tabs ? '\t' : ' ') + '{' + (tabs || spaces) + '}', 'gm');
+	    str = str.replace(re, '');
+	    return str.trim();
+	  };
+	  /**
+	   * If a value could have properties, and has none, this function is called,
+	   * which returns a string representation of the empty value.
+	   *
+	   * Functions w/ no properties return `'[Function]'`
+	   * Arrays w/ length === 0 return `'[]'`
+	   * Objects w/ no properties return `'{}'`
+	   * All else: return result of `value.toString()`
+	   *
+	   * @private
+	   * @param {*} value The value to inspect.
+	   * @param {string} typeHint The type of the value
+	   * @returns {string}
+	   */
+
+
+	  function emptyRepresentation(value, typeHint) {
+	    switch (typeHint) {
+	      case 'function':
+	        return '[Function]';
+
+	      case 'object':
+	        return '{}';
+
+	      case 'array':
+	        return '[]';
+
+	      default:
+	        return value.toString();
+	    }
+	  }
+	  /**
+	   * Takes some variable and asks `Object.prototype.toString()` what it thinks it
+	   * is.
+	   *
+	   * @private
+	   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
+	   * @param {*} value The value to test.
+	   * @returns {string} Computed type
+	   * @example
+	   * canonicalType({}) // 'object'
+	   * canonicalType([]) // 'array'
+	   * canonicalType(1) // 'number'
+	   * canonicalType(false) // 'boolean'
+	   * canonicalType(Infinity) // 'number'
+	   * canonicalType(null) // 'null'
+	   * canonicalType(new Date()) // 'date'
+	   * canonicalType(/foo/) // 'regexp'
+	   * canonicalType('type') // 'string'
+	   * canonicalType(global) // 'global'
+	   * canonicalType(new String('foo') // 'object'
+	   * canonicalType(async function() {}) // 'asyncfunction'
+	   * canonicalType(await import(name)) // 'module'
+	   */
+
+
+	  var canonicalType = exports.canonicalType = function canonicalType(value) {
+	    if (value === undefined) {
+	      return 'undefined';
+	    } else if (value === null) {
+	      return 'null';
+	    } else if (isBuffer$2(value)) {
+	      return 'buffer';
+	    }
+
+	    return Object.prototype.toString.call(value).replace(/^\[.+\s(.+?)]$/, '$1').toLowerCase();
+	  };
+	  /**
+	   *
+	   * Returns a general type or data structure of a variable
+	   * @private
+	   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures
+	   * @param {*} value The value to test.
+	   * @returns {string} One of undefined, boolean, number, string, bigint, symbol, object
+	   * @example
+	   * type({}) // 'object'
+	   * type([]) // 'array'
+	   * type(1) // 'number'
+	   * type(false) // 'boolean'
+	   * type(Infinity) // 'number'
+	   * type(null) // 'null'
+	   * type(new Date()) // 'object'
+	   * type(/foo/) // 'object'
+	   * type('type') // 'string'
+	   * type(global) // 'object'
+	   * type(new String('foo') // 'string'
+	   */
+
+
+	  exports.type = function type(value) {
+	    // Null is special
+	    if (value === null) return 'null';
+	    var primitives = new Set(['undefined', 'boolean', 'number', 'string', 'bigint', 'symbol']);
+
+	    var _type = _typeof(value);
+
+	    if (_type === 'function') return _type;
+	    if (primitives.has(_type)) return _type;
+	    if (value instanceof String) return 'string';
+	    if (value instanceof Error) return 'error';
+	    if (Array.isArray(value)) return 'array';
+	    return _type;
+	  };
+	  /**
+	   * Stringify `value`. Different behavior depending on type of value:
+	   *
+	   * - If `value` is undefined or null, return `'[undefined]'` or `'[null]'`, respectively.
+	   * - If `value` is not an object, function or array, return result of `value.toString()` wrapped in double-quotes.
+	   * - If `value` is an *empty* object, function, or array, return result of function
+	   *   {@link emptyRepresentation}.
+	   * - If `value` has properties, call {@link exports.canonicalize} on it, then return result of
+	   *   JSON.stringify().
+	   *
+	   * @private
+	   * @see exports.type
+	   * @param {*} value
+	   * @return {string}
+	   */
+
+
+	  exports.stringify = function (value) {
+	    var typeHint = canonicalType(value);
+
+	    if (!~['object', 'array', 'function'].indexOf(typeHint)) {
+	      if (typeHint === 'buffer') {
+	        var json = Buffer$1.prototype.toJSON.call(value); // Based on the toJSON result
+
+	        return jsonStringify(json.data && json.type ? json.data : json, 2).replace(/,(\n|$)/g, '$1');
+	      } // IE7/IE8 has a bizarre String constructor; needs to be coerced
+	      // into an array and back to obj.
+
+
+	      if (typeHint === 'string' && _typeof(value) === 'object') {
+	        value = value.split('').reduce(function (acc, _char, idx) {
+	          acc[idx] = _char;
+	          return acc;
+	        }, {});
+	        typeHint = 'object';
+	      } else {
+	        return jsonStringify(value);
+	      }
+	    }
+
+	    for (var prop in value) {
+	      if (Object.prototype.hasOwnProperty.call(value, prop)) {
+	        return jsonStringify(exports.canonicalize(value, null, typeHint), 2).replace(/,(\n|$)/g, '$1');
+	      }
+	    }
+
+	    return emptyRepresentation(value, typeHint);
+	  };
+	  /**
+	   * like JSON.stringify but more sense.
+	   *
+	   * @private
+	   * @param {Object}  object
+	   * @param {number=} spaces
+	   * @param {number=} depth
+	   * @returns {*}
+	   */
+
+
+	  function jsonStringify(object, spaces, depth) {
+	    if (typeof spaces === 'undefined') {
+	      // primitive types
+	      return _stringify(object);
+	    }
+
+	    depth = depth || 1;
+	    var space = spaces * depth;
+	    var str = Array.isArray(object) ? '[' : '{';
+	    var end = Array.isArray(object) ? ']' : '}';
+	    var length = typeof object.length === 'number' ? object.length : Object.keys(object).length; // `.repeat()` polyfill
+
+	    function repeat(s, n) {
+	      return new Array(n).join(s);
+	    }
+
+	    function _stringify(val) {
+	      switch (canonicalType(val)) {
+	        case 'null':
+	        case 'undefined':
+	          val = '[' + val + ']';
+	          break;
+
+	        case 'array':
+	        case 'object':
+	          val = jsonStringify(val, spaces, depth + 1);
+	          break;
+
+	        case 'boolean':
+	        case 'regexp':
+	        case 'symbol':
+	        case 'number':
+	          val = val === 0 && 1 / val === -Infinity // `-0`
+	          ? '-0' : val.toString();
+	          break;
+
+	        case 'bigint':
+	          val = val.toString() + 'n';
+	          break;
+
+	        case 'date':
+	          var sDate = isNaN(val.getTime()) ? val.toString() : val.toISOString();
+	          val = '[Date: ' + sDate + ']';
+	          break;
+
+	        case 'buffer':
+	          var json = val.toJSON(); // Based on the toJSON result
+
+	          json = json.data && json.type ? json.data : json;
+	          val = '[Buffer: ' + jsonStringify(json, 2, depth + 1) + ']';
+	          break;
+
+	        default:
+	          val = val === '[Function]' || val === '[Circular]' ? val : JSON.stringify(val);
+	        // string
+	      }
+
+	      return val;
+	    }
+
+	    for (var i in object) {
+	      if (!Object.prototype.hasOwnProperty.call(object, i)) {
+	        continue; // not my business
+	      }
+
+	      --length;
+	      str += '\n ' + repeat(' ', space) + (Array.isArray(object) ? '' : '"' + i + '": ') + // key
+	      _stringify(object[i]) + (length ? ',' : ''); // comma
+	    }
+
+	    return str + (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end);
+	  }
+	  /**
+	   * Return a new Thing that has the keys in sorted order. Recursive.
+	   *
+	   * If the Thing...
+	   * - has already been seen, return string `'[Circular]'`
+	   * - is `undefined`, return string `'[undefined]'`
+	   * - is `null`, return value `null`
+	   * - is some other primitive, return the value
+	   * - is not a primitive or an `Array`, `Object`, or `Function`, return the value of the Thing's `toString()` method
+	   * - is a non-empty `Array`, `Object`, or `Function`, return the result of calling this function again.
+	   * - is an empty `Array`, `Object`, or `Function`, return the result of calling `emptyRepresentation()`
+	   *
+	   * @private
+	   * @see {@link exports.stringify}
+	   * @param {*} value Thing to inspect.  May or may not have properties.
+	   * @param {Array} [stack=[]] Stack of seen values
+	   * @param {string} [typeHint] Type hint
+	   * @return {(Object|Array|Function|string|undefined)}
+	   */
+
+
+	  exports.canonicalize = function canonicalize(value, stack, typeHint) {
+	    var canonicalizedObj;
+	    /* eslint-disable no-unused-vars */
+
+	    var prop;
+	    /* eslint-enable no-unused-vars */
+
+	    typeHint = typeHint || canonicalType(value);
+
+	    function withStack(value, fn) {
+	      stack.push(value);
+	      fn();
+	      stack.pop();
+	    }
+
+	    stack = stack || [];
+
+	    if (stack.indexOf(value) !== -1) {
+	      return '[Circular]';
+	    }
+
+	    switch (typeHint) {
+	      case 'undefined':
+	      case 'buffer':
+	      case 'null':
+	        canonicalizedObj = value;
+	        break;
+
+	      case 'array':
+	        withStack(value, function () {
+	          canonicalizedObj = value.map(function (item) {
+	            return exports.canonicalize(item, stack);
+	          });
+	        });
+	        break;
+
+	      case 'function':
+	        /* eslint-disable-next-line no-unused-vars, no-unreachable-loop */
+	        for (prop in value) {
+	          canonicalizedObj = {};
+	          break;
+	        }
+	        /* eslint-enable guard-for-in */
+
+
+	        if (!canonicalizedObj) {
+	          canonicalizedObj = emptyRepresentation(value, typeHint);
+	          break;
+	        }
+
+	      /* falls through */
+
+	      case 'object':
+	        canonicalizedObj = canonicalizedObj || {};
+	        withStack(value, function () {
+	          Object.keys(value).sort().forEach(function (key) {
+	            canonicalizedObj[key] = exports.canonicalize(value[key], stack);
+	          });
+	        });
+	        break;
+
+	      case 'date':
+	      case 'number':
+	      case 'regexp':
+	      case 'boolean':
+	      case 'symbol':
+	        canonicalizedObj = value;
+	        break;
+
+	      default:
+	        canonicalizedObj = value + '';
+	    }
+
+	    return canonicalizedObj;
+	  };
+	  /**
+	   * @summary
+	   * This Filter based on `mocha-clean` module.(see: `github.com/rstacruz/mocha-clean`)
+	   * @description
+	   * When invoking this function you get a filter function that get the Error.stack as an input,
+	   * and return a prettify output.
+	   * (i.e: strip Mocha and internal node functions from stack trace).
+	   * @returns {Function}
+	   */
+
+
+	  exports.stackTraceFilter = function () {
+	    // TODO: Replace with `process.browser`
+	    var is = typeof document === 'undefined' ? {
+	      node: true
+	    } : {
+	      browser: true
+	    };
+	    var slash = path.sep;
+	    var cwd;
+
+	    if (is.node) {
+	      cwd = exports.cwd() + slash;
+	    } else {
+	      cwd = (typeof location === 'undefined' ? window.location : location).href.replace(/\/[^/]*$/, '/');
+	      slash = '/';
+	    }
+
+	    function isMochaInternal(line) {
+	      return ~line.indexOf('node_modules' + slash + 'mocha' + slash) || ~line.indexOf(slash + 'mocha.js') || ~line.indexOf(slash + 'mocha.min.js');
+	    }
+
+	    function isNodeInternal(line) {
+	      return ~line.indexOf('(timers.js:') || ~line.indexOf('(events.js:') || ~line.indexOf('(node.js:') || ~line.indexOf('(module.js:') || ~line.indexOf('GeneratorFunctionPrototype.next (native)') || false;
+	    }
+
+	    return function (stack) {
+	      stack = stack.split('\n');
+	      stack = stack.reduce(function (list, line) {
+	        if (isMochaInternal(line)) {
+	          return list;
+	        }
+
+	        if (is.node && isNodeInternal(line)) {
+	          return list;
+	        } // Clean up cwd(absolute)
+
+
+	        if (/:\d+:\d+\)?$/.test(line)) {
+	          line = line.replace('(' + cwd, '(');
+	        }
+
+	        list.push(line);
+	        return list;
+	      }, []);
+	      return stack.join('\n');
+	    };
+	  };
+	  /**
+	   * Crude, but effective.
+	   * @public
+	   * @param {*} value
+	   * @returns {boolean} Whether or not `value` is a Promise
+	   */
+
+
+	  exports.isPromise = function isPromise(value) {
+	    return _typeof(value) === 'object' && value !== null && typeof value.then === 'function';
+	  };
+	  /**
+	   * Clamps a numeric value to an inclusive range.
+	   *
+	   * @param {number} value - Value to be clamped.
+	   * @param {number[]} range - Two element array specifying [min, max] range.
+	   * @returns {number} clamped value
+	   */
+
+
+	  exports.clamp = function clamp(value, range) {
+	    return Math.min(Math.max(value, range[0]), range[1]);
+	  };
+	  /**
+	   * It's a noop.
+	   * @public
+	   */
+
+
+	  exports.noop = function () {};
+	  /**
+	   * Creates a map-like object.
+	   *
+	   * @description
+	   * A "map" is an object with no prototype, for our purposes. In some cases
+	   * this would be more appropriate than a `Map`, especially if your environment
+	   * doesn't support it. Recommended for use in Mocha's public APIs.
+	   *
+	   * @public
+	   * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Custom_and_Null_objects|MDN:Map}
+	   * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create#Custom_and_Null_objects|MDN:Object.create - Custom objects}
+	   * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign#Custom_and_Null_objects|MDN:Object.assign}
+	   * @param {...*} [obj] - Arguments to `Object.assign()`.
+	   * @returns {Object} An object with no prototype, having `...obj` properties
+	   */
+
+
+	  exports.createMap = function (obj) {
+	    return Object.assign.apply(null, [Object.create(null)].concat(Array.prototype.slice.call(arguments)));
+	  };
+	  /**
+	   * Creates a read-only map-like object.
+	   *
+	   * @description
+	   * This differs from {@link module:utils.createMap createMap} only in that
+	   * the argument must be non-empty, because the result is frozen.
+	   *
+	   * @see {@link module:utils.createMap createMap}
+	   * @param {...*} [obj] - Arguments to `Object.assign()`.
+	   * @returns {Object} A frozen object with no prototype, having `...obj` properties
+	   * @throws {TypeError} if argument is not a non-empty object.
+	   */
+
+
+	  exports.defineConstants = function (obj) {
+	    if (canonicalType(obj) !== 'object' || !Object.keys(obj).length) {
+	      throw new TypeError('Invalid argument; expected a non-empty object');
+	    }
+
+	    return Object.freeze(exports.createMap(obj));
+	  };
+	  /**
+	   * Returns current working directory
+	   *
+	   * Wrapper around `process.cwd()` for isolation
+	   * @private
+	   */
+
+
+	  exports.cwd = function cwd() {
+	    return process$4.cwd();
+	  };
+	  /**
+	   * Returns `true` if Mocha is running in a browser.
+	   * Checks for `process.browser`.
+	   * @returns {boolean}
+	   * @private
+	   */
+
+
+	  exports.isBrowser = function isBrowser() {
+	    return Boolean(browser$2);
+	  };
+	  /*
+	   * Casts `value` to an array; useful for optionally accepting array parameters
+	   *
+	   * It follows these rules, depending on `value`.  If `value` is...
+	   * 1. `undefined`: return an empty Array
+	   * 2. `null`: return an array with a single `null` element
+	   * 3. Any other object: return the value of `Array.from()` _if_ the object is iterable
+	   * 4. otherwise: return an array with a single element, `value`
+	   * @param {*} value - Something to cast to an Array
+	   * @returns {Array<*>}
+	   */
+
+
+	  exports.castArray = function castArray(value) {
+	    if (value === undefined) {
+	      return [];
+	    }
+
+	    if (value === null) {
+	      return [null];
+	    }
+
+	    if (_typeof(value) === 'object' && (typeof value[Symbol.iterator] === 'function' || value.length !== undefined)) {
+	      return Array.from(value);
+	    }
+
+	    return [value];
+	  };
+
+	  exports.constants = exports.defineConstants({
+	    MOCHA_ID_PROP_NAME: MOCHA_ID_PROP_NAME
+	  });
+	  /**
+	   * Creates a new unique identifier
+	   * @returns {string} Unique identifier
+	   */
+
+	  exports.uniqueID = function () {
+	    return nanoid();
+	  };
+
+	  exports.assignNewMochaID = function (obj) {
+	    var id = exports.uniqueID();
+	    Object.defineProperty(obj, MOCHA_ID_PROP_NAME, {
+	      get: function get() {
+	        return id;
+	      }
+	    });
+	    return obj;
+	  };
+	  /**
+	   * Retrieves a Mocha ID from an object, if present.
+	   * @param {*} [obj] - Object
+	   * @returns {string|void}
+	   */
+
+
+	  exports.getMochaID = function (obj) {
+	    return obj && _typeof(obj) === 'object' ? obj[MOCHA_ID_PROP_NAME] : undefined;
+	  };
+	});
+
+	var _nodeResolve_empty = {};
+
+	var _nodeResolve_empty$1 = /*#__PURE__*/Object.freeze({
+		__proto__: null,
+		'default': _nodeResolve_empty
+	});
+
+	var browser$1 = {
+	  info: 'ℹ️',
+	  success: '✅',
+	  warning: '⚠️',
+	  error: '❌️'
+	};
+
+	// `Map` constructor
+	// https://tc39.es/ecma262/#sec-map-objects
+	collection('Map', function (init) {
+	  return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };
+	}, collectionStrong);
+
+	/**
+	 @module Pending
+	*/
+
+	var pending = Pending;
+	/**
+	 * Initialize a new `Pending` error with the given message.
+	 *
+	 * @param {string} message
+	 */
+
+	function Pending(message) {
+	  this.message = message;
+	}
+
+	/**
+	 * Helpers.
+	 */
+	var s = 1000;
+	var m = s * 60;
+	var h = m * 60;
+	var d = h * 24;
+	var w = d * 7;
+	var y = d * 365.25;
+	/**
+	 * Parse or format the given `val`.
+	 *
+	 * Options:
+	 *
+	 *  - `long` verbose formatting [false]
+	 *
+	 * @param {String|Number} val
+	 * @param {Object} [options]
+	 * @throws {Error} throw an error if val is not a non-empty string or a number
+	 * @return {String|Number}
+	 * @api public
+	 */
+
+	var ms = function ms(val, options) {
+	  options = options || {};
+
+	  var type = _typeof(val);
+
+	  if (type === 'string' && val.length > 0) {
+	    return parse(val);
+	  } else if (type === 'number' && isFinite(val)) {
+	    return options["long"] ? fmtLong(val) : fmtShort(val);
+	  }
+
+	  throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
+	};
+	/**
+	 * Parse the given `str` and return milliseconds.
+	 *
+	 * @param {String} str
+	 * @return {Number}
+	 * @api private
+	 */
+
+
+	function parse(str) {
+	  str = String(str);
+
+	  if (str.length > 100) {
+	    return;
+	  }
+
+	  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
+
+	  if (!match) {
+	    return;
+	  }
+
+	  var n = parseFloat(match[1]);
+	  var type = (match[2] || 'ms').toLowerCase();
+
+	  switch (type) {
+	    case 'years':
+	    case 'year':
+	    case 'yrs':
+	    case 'yr':
+	    case 'y':
+	      return n * y;
+
+	    case 'weeks':
+	    case 'week':
+	    case 'w':
+	      return n * w;
+
+	    case 'days':
+	    case 'day':
+	    case 'd':
+	      return n * d;
+
+	    case 'hours':
+	    case 'hour':
+	    case 'hrs':
+	    case 'hr':
+	    case 'h':
+	      return n * h;
+
+	    case 'minutes':
+	    case 'minute':
+	    case 'mins':
+	    case 'min':
+	    case 'm':
+	      return n * m;
+
+	    case 'seconds':
+	    case 'second':
+	    case 'secs':
+	    case 'sec':
+	    case 's':
+	      return n * s;
+
+	    case 'milliseconds':
+	    case 'millisecond':
+	    case 'msecs':
+	    case 'msec':
+	    case 'ms':
+	      return n;
+
+	    default:
+	      return undefined;
+	  }
+	}
+	/**
+	 * Short format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+
+
+	function fmtShort(ms) {
+	  var msAbs = Math.abs(ms);
+
+	  if (msAbs >= d) {
+	    return Math.round(ms / d) + 'd';
+	  }
+
+	  if (msAbs >= h) {
+	    return Math.round(ms / h) + 'h';
+	  }
+
+	  if (msAbs >= m) {
+	    return Math.round(ms / m) + 'm';
+	  }
+
+	  if (msAbs >= s) {
+	    return Math.round(ms / s) + 's';
+	  }
+
+	  return ms + 'ms';
+	}
+	/**
+	 * Long format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+
+
+	function fmtLong(ms) {
+	  var msAbs = Math.abs(ms);
+
+	  if (msAbs >= d) {
+	    return plural(ms, msAbs, d, 'day');
+	  }
+
+	  if (msAbs >= h) {
+	    return plural(ms, msAbs, h, 'hour');
+	  }
+
+	  if (msAbs >= m) {
+	    return plural(ms, msAbs, m, 'minute');
+	  }
+
+	  if (msAbs >= s) {
+	    return plural(ms, msAbs, s, 'second');
+	  }
+
+	  return ms + ' ms';
+	}
+	/**
+	 * Pluralization helper.
+	 */
+
+
+	function plural(ms, msAbs, n, name) {
+	  var isPlural = msAbs >= n * 1.5;
+	  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+	}
+
+	/**
+	 * This is the common logic for both the Node.js and web browser
+	 * implementations of `debug()`.
+	 */
+
+	function setup(env) {
+	  createDebug.debug = createDebug;
+	  createDebug["default"] = createDebug;
+	  createDebug.coerce = coerce;
+	  createDebug.disable = disable;
+	  createDebug.enable = enable;
+	  createDebug.enabled = enabled;
+	  createDebug.humanize = ms;
+	  createDebug.destroy = destroy;
+	  Object.keys(env).forEach(function (key) {
+	    createDebug[key] = env[key];
+	  });
+	  /**
+	  * The currently active debug mode names, and names to skip.
+	  */
+
+	  createDebug.names = [];
+	  createDebug.skips = [];
+	  /**
+	  * Map of special "%n" handling functions, for the debug "format" argument.
+	  *
+	  * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	  */
+
+	  createDebug.formatters = {};
+	  /**
+	  * Selects a color for a debug namespace
+	  * @param {String} namespace The namespace string for the for the debug instance to be colored
+	  * @return {Number|String} An ANSI color code for the given namespace
+	  * @api private
+	  */
+
+	  function selectColor(namespace) {
+	    var hash = 0;
+
+	    for (var i = 0; i < namespace.length; i++) {
+	      hash = (hash << 5) - hash + namespace.charCodeAt(i);
+	      hash |= 0; // Convert to 32bit integer
+	    }
+
+	    return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+	  }
+
+	  createDebug.selectColor = selectColor;
+	  /**
+	  * Create a debugger with the given `namespace`.
+	  *
+	  * @param {String} namespace
+	  * @return {Function}
+	  * @api public
+	  */
+
+	  function createDebug(namespace) {
+	    var prevTime;
+	    var enableOverride = null;
+	    var namespacesCache;
+	    var enabledCache;
+
+	    function debug() {
+	      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+	        args[_key] = arguments[_key];
+	      }
+
+	      // Disabled?
+	      if (!debug.enabled) {
+	        return;
+	      }
+
+	      var self = debug; // Set `diff` timestamp
+
+	      var curr = Number(new Date());
+	      var ms = curr - (prevTime || curr);
+	      self.diff = ms;
+	      self.prev = prevTime;
+	      self.curr = curr;
+	      prevTime = curr;
+	      args[0] = createDebug.coerce(args[0]);
+
+	      if (typeof args[0] !== 'string') {
+	        // Anything else let's inspect with %O
+	        args.unshift('%O');
+	      } // Apply any `formatters` transformations
+
+
+	      var index = 0;
+	      args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
+	        // If we encounter an escaped % then don't increase the array index
+	        if (match === '%%') {
+	          return '%';
+	        }
+
+	        index++;
+	        var formatter = createDebug.formatters[format];
+
+	        if (typeof formatter === 'function') {
+	          var val = args[index];
+	          match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
+
+	          args.splice(index, 1);
+	          index--;
+	        }
+
+	        return match;
+	      }); // Apply env-specific formatting (colors, etc.)
+
+	      createDebug.formatArgs.call(self, args);
+	      var logFn = self.log || createDebug.log;
+	      logFn.apply(self, args);
+	    }
+
+	    debug.namespace = namespace;
+	    debug.useColors = createDebug.useColors();
+	    debug.color = createDebug.selectColor(namespace);
+	    debug.extend = extend;
+	    debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+	    Object.defineProperty(debug, 'enabled', {
+	      enumerable: true,
+	      configurable: false,
+	      get: function get() {
+	        if (enableOverride !== null) {
+	          return enableOverride;
+	        }
+
+	        if (namespacesCache !== createDebug.namespaces) {
+	          namespacesCache = createDebug.namespaces;
+	          enabledCache = createDebug.enabled(namespace);
+	        }
+
+	        return enabledCache;
+	      },
+	      set: function set(v) {
+	        enableOverride = v;
+	      }
+	    }); // Env-specific initialization logic for debug instances
+
+	    if (typeof createDebug.init === 'function') {
+	      createDebug.init(debug);
+	    }
+
+	    return debug;
+	  }
+
+	  function extend(namespace, delimiter) {
+	    var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+	    newDebug.log = this.log;
+	    return newDebug;
+	  }
+	  /**
+	  * Enables a debug mode by namespaces. This can include modes
+	  * separated by a colon and wildcards.
+	  *
+	  * @param {String} namespaces
+	  * @api public
+	  */
+
+
+	  function enable(namespaces) {
+	    createDebug.save(namespaces);
+	    createDebug.namespaces = namespaces;
+	    createDebug.names = [];
+	    createDebug.skips = [];
+	    var i;
+	    var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+	    var len = split.length;
+
+	    for (i = 0; i < len; i++) {
+	      if (!split[i]) {
+	        // ignore empty strings
+	        continue;
+	      }
+
+	      namespaces = split[i].replace(/\*/g, '.*?');
+
+	      if (namespaces[0] === '-') {
+	        createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+	      } else {
+	        createDebug.names.push(new RegExp('^' + namespaces + '$'));
+	      }
+	    }
+	  }
+	  /**
+	  * Disable debug output.
+	  *
+	  * @return {String} namespaces
+	  * @api public
+	  */
+
+
+	  function disable() {
+	    var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
+	      return '-' + namespace;
+	    }))).join(',');
+	    createDebug.enable('');
+	    return namespaces;
+	  }
+	  /**
+	  * Returns true if the given mode name is enabled, false otherwise.
+	  *
+	  * @param {String} name
+	  * @return {Boolean}
+	  * @api public
+	  */
+
+
+	  function enabled(name) {
+	    if (name[name.length - 1] === '*') {
+	      return true;
+	    }
+
+	    var i;
+	    var len;
+
+	    for (i = 0, len = createDebug.skips.length; i < len; i++) {
+	      if (createDebug.skips[i].test(name)) {
+	        return false;
+	      }
+	    }
+
+	    for (i = 0, len = createDebug.names.length; i < len; i++) {
+	      if (createDebug.names[i].test(name)) {
+	        return true;
+	      }
+	    }
+
+	    return false;
+	  }
+	  /**
+	  * Convert regexp to namespace
+	  *
+	  * @param {RegExp} regxep
+	  * @return {String} namespace
+	  * @api private
+	  */
+
+
+	  function toNamespace(regexp) {
+	    return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
+	  }
+	  /**
+	  * Coerce `val`.
+	  *
+	  * @param {Mixed} val
+	  * @return {Mixed}
+	  * @api private
+	  */
+
+
+	  function coerce(val) {
+	    if (val instanceof Error) {
+	      return val.stack || val.message;
+	    }
+
+	    return val;
+	  }
+	  /**
+	  * XXX DO NOT USE. This is a temporary stub function.
+	  * XXX It WILL be removed in the next major release.
+	  */
+
+
+	  function destroy() {
+	    console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+	  }
+
+	  createDebug.enable(createDebug.load());
+	  return createDebug;
+	}
+
+	var common$1 = setup;
+
+	var browser = createCommonjsModule(function (module, exports) {
+	  /* eslint-env browser */
+
+	  /**
+	   * This is the web browser implementation of `debug()`.
+	   */
+	  exports.formatArgs = formatArgs;
+	  exports.save = save;
+	  exports.load = load;
+	  exports.useColors = useColors;
+	  exports.storage = localstorage();
+
+	  exports.destroy = function () {
+	    var warned = false;
+	    return function () {
+	      if (!warned) {
+	        warned = true;
+	        console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+	      }
+	    };
+	  }();
+	  /**
+	   * Colors.
+	   */
+
+
+	  exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
+	  /**
+	   * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+	   * and the Firebug extension (any Firefox version) are known
+	   * to support "%c" CSS customizations.
+	   *
+	   * TODO: add a `localStorage` variable to explicitly enable/disable colors
+	   */
+	  // eslint-disable-next-line complexity
+
+	  function useColors() {
+	    // NB: In an Electron preload script, document will be defined but not fully
+	    // initialized. Since we know we're in Chrome, we'll just detect this case
+	    // explicitly
+	    if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+	      return true;
+	    } // Internet Explorer and Edge do not support colors.
+
+
+	    if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+	      return false;
+	    } // Is webkit? http://stackoverflow.com/a/16459606/376773
+	    // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+
+
+	    return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
+	  }
+	  /**
+	   * Colorize log arguments if enabled.
+	   *
+	   * @api public
+	   */
+
+
+	  function formatArgs(args) {
+	    args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
+
+	    if (!this.useColors) {
+	      return;
+	    }
+
+	    var c = 'color: ' + this.color;
+	    args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
+	    // arguments passed either before or after the %c, so we need to
+	    // figure out the correct index to insert the CSS into
+
+	    var index = 0;
+	    var lastC = 0;
+	    args[0].replace(/%[a-zA-Z%]/g, function (match) {
+	      if (match === '%%') {
+	        return;
+	      }
+
+	      index++;
+
+	      if (match === '%c') {
+	        // We only are interested in the *last* %c
+	        // (the user may have provided their own)
+	        lastC = index;
+	      }
+	    });
+	    args.splice(lastC, 0, c);
+	  }
+	  /**
+	   * Invokes `console.debug()` when available.
+	   * No-op when `console.debug` is not a "function".
+	   * If `console.debug` is not available, falls back
+	   * to `console.log`.
+	   *
+	   * @api public
+	   */
+
+
+	  exports.log = console.debug || console.log || function () {};
+	  /**
+	   * Save `namespaces`.
+	   *
+	   * @param {String} namespaces
+	   * @api private
+	   */
+
+
+	  function save(namespaces) {
+	    try {
+	      if (namespaces) {
+	        exports.storage.setItem('debug', namespaces);
+	      } else {
+	        exports.storage.removeItem('debug');
+	      }
+	    } catch (error) {// Swallow
+	      // XXX (@Qix-) should we be logging these?
+	    }
+	  }
+	  /**
+	   * Load `namespaces`.
+	   *
+	   * @return {String} returns the previously persisted debug modes
+	   * @api private
+	   */
+
+
+	  function load() {
+	    var r;
+
+	    try {
+	      r = exports.storage.getItem('debug');
+	    } catch (error) {// Swallow
+	      // XXX (@Qix-) should we be logging these?
+	    } // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+
+
+	    if (!r && typeof process$4 !== 'undefined' && 'env' in process$4) {
+	      r = process$4.env.DEBUG;
+	    }
+
+	    return r;
+	  }
+	  /**
+	   * Localstorage attempts to return the localstorage.
+	   *
+	   * This is necessary because safari throws
+	   * when a user disables cookies/localstorage
+	   * and you attempt to access it.
+	   *
+	   * @return {LocalStorage}
+	   * @api private
+	   */
+
+
+	  function localstorage() {
+	    try {
+	      // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+	      // The Browser also has localStorage in the global context.
+	      return localStorage;
+	    } catch (error) {// Swallow
+	      // XXX (@Qix-) should we be logging these?
+	    }
+	  }
+
+	  module.exports = common$1(exports);
+	  var formatters = module.exports.formatters;
+	  /**
+	   * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+	   */
+
+	  formatters.j = function (v) {
+	    try {
+	      return JSON.stringify(v);
+	    } catch (error) {
+	      return '[UnexpectedJSONParseError]: ' + error.message;
+	    }
+	  };
+	});
+
+	var propertyIsEnumerable = objectPropertyIsEnumerable.f;
+
+	// `Object.{ entries, values }` methods implementation
+	var createMethod = function (TO_ENTRIES) {
+	  return function (it) {
+	    var O = toIndexedObject(it);
+	    var keys = objectKeys(O);
+	    var length = keys.length;
+	    var i = 0;
+	    var result = [];
+	    var key;
+	    while (length > i) {
+	      key = keys[i++];
+	      if (!descriptors || propertyIsEnumerable.call(O, key)) {
+	        result.push(TO_ENTRIES ? [key, O[key]] : O[key]);
+	      }
+	    }
+	    return result;
+	  };
+	};
+
+	var objectToArray = {
+	  // `Object.entries` method
+	  // https://tc39.es/ecma262/#sec-object.entries
+	  entries: createMethod(true),
+	  // `Object.values` method
+	  // https://tc39.es/ecma262/#sec-object.values
+	  values: createMethod(false)
+	};
+
+	var $values = objectToArray.values;
+
+	// `Object.values` method
+	// https://tc39.es/ecma262/#sec-object.values
+	_export({ target: 'Object', stat: true }, {
+	  values: function values(O) {
+	    return $values(O);
+	  }
+	});
+
+	var format = util.format;
+	/**
+	 * Contains error codes, factory functions to create throwable error objects,
+	 * and warning/deprecation functions.
+	 * @module
+	 */
+
+	/**
+	 * process.emitWarning or a polyfill
+	 * @see https://nodejs.org/api/process.html#process_process_emitwarning_warning_options
+	 * @ignore
+	 */
+
+	var emitWarning = function emitWarning(msg, type) {
+	  if (process$4.emitWarning) {
+	    process$4.emitWarning(msg, type);
+	  } else {
+	    /* istanbul ignore next */
+	    nextTick$1(function () {
+	      console.warn(type + ': ' + msg);
+	    });
+	  }
+	};
+	/**
+	 * Show a deprecation warning. Each distinct message is only displayed once.
+	 * Ignores empty messages.
+	 *
+	 * @param {string} [msg] - Warning to print
+	 * @private
+	 */
+
+
+	var deprecate = function deprecate(msg) {
+	  msg = String(msg);
+
+	  if (msg && !deprecate.cache[msg]) {
+	    deprecate.cache[msg] = true;
+	    emitWarning(msg, 'DeprecationWarning');
+	  }
+	};
+
+	deprecate.cache = {};
+	/**
+	 * Show a generic warning.
+	 * Ignores empty messages.
+	 *
+	 * @param {string} [msg] - Warning to print
+	 * @private
+	 */
+
+	var warn = function warn(msg) {
+	  if (msg) {
+	    emitWarning(msg);
+	  }
+	};
+	/**
+	 * When Mocha throws exceptions (or rejects `Promise`s), it attempts to assign a `code` property to the `Error` object, for easier handling. These are the potential values of `code`.
+	 * @public
+	 * @namespace
+	 * @memberof module:lib/errors
+	 */
+
+
+	var constants$4 = {
+	  /**
+	   * An unrecoverable error.
+	   * @constant
+	   * @default
+	   */
+	  FATAL: 'ERR_MOCHA_FATAL',
+
+	  /**
+	   * The type of an argument to a function call is invalid
+	   * @constant
+	   * @default
+	   */
+	  INVALID_ARG_TYPE: 'ERR_MOCHA_INVALID_ARG_TYPE',
+
+	  /**
+	   * The value of an argument to a function call is invalid
+	   * @constant
+	   * @default
+	   */
+	  INVALID_ARG_VALUE: 'ERR_MOCHA_INVALID_ARG_VALUE',
+
+	  /**
+	   * Something was thrown, but it wasn't an `Error`
+	   * @constant
+	   * @default
+	   */
+	  INVALID_EXCEPTION: 'ERR_MOCHA_INVALID_EXCEPTION',
+
+	  /**
+	   * An interface (e.g., `Mocha.interfaces`) is unknown or invalid
+	   * @constant
+	   * @default
+	   */
+	  INVALID_INTERFACE: 'ERR_MOCHA_INVALID_INTERFACE',
+
+	  /**
+	   * A reporter (.e.g, `Mocha.reporters`) is unknown or invalid
+	   * @constant
+	   * @default
+	   */
+	  INVALID_REPORTER: 'ERR_MOCHA_INVALID_REPORTER',
+
+	  /**
+	   * `done()` was called twice in a `Test` or `Hook` callback
+	   * @constant
+	   * @default
+	   */
+	  MULTIPLE_DONE: 'ERR_MOCHA_MULTIPLE_DONE',
+
+	  /**
+	   * No files matched the pattern provided by the user
+	   * @constant
+	   * @default
+	   */
+	  NO_FILES_MATCH_PATTERN: 'ERR_MOCHA_NO_FILES_MATCH_PATTERN',
+
+	  /**
+	   * Known, but unsupported behavior of some kind
+	   * @constant
+	   * @default
+	   */
+	  UNSUPPORTED: 'ERR_MOCHA_UNSUPPORTED',
+
+	  /**
+	   * Invalid state transition occurring in `Mocha` instance
+	   * @constant
+	   * @default
+	   */
+	  INSTANCE_ALREADY_RUNNING: 'ERR_MOCHA_INSTANCE_ALREADY_RUNNING',
+
+	  /**
+	   * Invalid state transition occurring in `Mocha` instance
+	   * @constant
+	   * @default
+	   */
+	  INSTANCE_ALREADY_DISPOSED: 'ERR_MOCHA_INSTANCE_ALREADY_DISPOSED',
+
+	  /**
+	   * Use of `only()` w/ `--forbid-only` results in this error.
+	   * @constant
+	   * @default
+	   */
+	  FORBIDDEN_EXCLUSIVITY: 'ERR_MOCHA_FORBIDDEN_EXCLUSIVITY',
+
+	  /**
+	   * To be thrown when a user-defined plugin implementation (e.g., `mochaHooks`) is invalid
+	   * @constant
+	   * @default
+	   */
+	  INVALID_PLUGIN_IMPLEMENTATION: 'ERR_MOCHA_INVALID_PLUGIN_IMPLEMENTATION',
+
+	  /**
+	   * To be thrown when a builtin or third-party plugin definition (the _definition_ of `mochaHooks`) is invalid
+	   * @constant
+	   * @default
+	   */
+	  INVALID_PLUGIN_DEFINITION: 'ERR_MOCHA_INVALID_PLUGIN_DEFINITION',
+
+	  /**
+	   * When a runnable exceeds its allowed run time.
+	   * @constant
+	   * @default
+	   */
+	  TIMEOUT: 'ERR_MOCHA_TIMEOUT',
+
+	  /**
+	   * Input file is not able to be parsed
+	   * @constant
+	   * @default
+	   */
+	  UNPARSABLE_FILE: 'ERR_MOCHA_UNPARSABLE_FILE'
+	};
+	/**
+	 * A set containing all string values of all Mocha error constants, for use by {@link isMochaError}.
+	 * @private
+	 */
+
+	var MOCHA_ERRORS = new Set(Object.values(constants$4));
+	/**
+	 * Creates an error object to be thrown when no files to be tested could be found using specified pattern.
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} pattern - User-specified argument value.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+	function createNoFilesMatchPatternError(message, pattern) {
+	  var err = new Error(message);
+	  err.code = constants$4.NO_FILES_MATCH_PATTERN;
+	  err.pattern = pattern;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when the reporter specified in the options was not found.
+	 *
+	 * @public
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} reporter - User-specified reporter value.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createInvalidReporterError(message, reporter) {
+	  var err = new TypeError(message);
+	  err.code = constants$4.INVALID_REPORTER;
+	  err.reporter = reporter;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when the interface specified in the options was not found.
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} ui - User-specified interface value.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createInvalidInterfaceError(message, ui) {
+	  var err = new Error(message);
+	  err.code = constants$4.INVALID_INTERFACE;
+	  err["interface"] = ui;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when a behavior, option, or parameter is unsupported.
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createUnsupportedError$2(message) {
+	  var err = new Error(message);
+	  err.code = constants$4.UNSUPPORTED;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when an argument is missing.
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} argument - Argument name.
+	 * @param {string} expected - Expected argument datatype.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createMissingArgumentError$1(message, argument, expected) {
+	  return createInvalidArgumentTypeError$1(message, argument, expected);
+	}
+	/**
+	 * Creates an error object to be thrown when an argument did not use the supported type
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} argument - Argument name.
+	 * @param {string} expected - Expected argument datatype.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createInvalidArgumentTypeError$1(message, argument, expected) {
+	  var err = new TypeError(message);
+	  err.code = constants$4.INVALID_ARG_TYPE;
+	  err.argument = argument;
+	  err.expected = expected;
+	  err.actual = _typeof(argument);
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when an argument did not use the supported value
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} argument - Argument name.
+	 * @param {string} value - Argument value.
+	 * @param {string} [reason] - Why value is invalid.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createInvalidArgumentValueError(message, argument, value, reason) {
+	  var err = new TypeError(message);
+	  err.code = constants$4.INVALID_ARG_VALUE;
+	  err.argument = argument;
+	  err.value = value;
+	  err.reason = typeof reason !== 'undefined' ? reason : 'is invalid';
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when an exception was caught, but the `Error` is falsy or undefined.
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createInvalidExceptionError$2(message, value) {
+	  var err = new Error(message);
+	  err.code = constants$4.INVALID_EXCEPTION;
+	  err.valueType = _typeof(value);
+	  err.value = value;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when an unrecoverable error occurs.
+	 *
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @returns {Error} instance detailing the error condition
+	 */
+
+
+	function createFatalError$1(message, value) {
+	  var err = new Error(message);
+	  err.code = constants$4.FATAL;
+	  err.valueType = _typeof(value);
+	  err.value = value;
+	  return err;
+	}
+	/**
+	 * Dynamically creates a plugin-type-specific error based on plugin type
+	 * @param {string} message - Error message
+	 * @param {"reporter"|"ui"} pluginType - Plugin type. Future: expand as needed
+	 * @param {string} [pluginId] - Name/path of plugin, if any
+	 * @throws When `pluginType` is not known
+	 * @public
+	 * @static
+	 * @returns {Error}
+	 */
+
+
+	function createInvalidLegacyPluginError(message, pluginType, pluginId) {
+	  switch (pluginType) {
+	    case 'reporter':
+	      return createInvalidReporterError(message, pluginId);
+
+	    case 'ui':
+	      return createInvalidInterfaceError(message, pluginId);
+
+	    default:
+	      throw new Error('unknown pluginType "' + pluginType + '"');
+	  }
+	}
+	/**
+	 * **DEPRECATED**.  Use {@link createInvalidLegacyPluginError} instead  Dynamically creates a plugin-type-specific error based on plugin type
+	 * @deprecated
+	 * @param {string} message - Error message
+	 * @param {"reporter"|"interface"} pluginType - Plugin type. Future: expand as needed
+	 * @param {string} [pluginId] - Name/path of plugin, if any
+	 * @throws When `pluginType` is not known
+	 * @public
+	 * @static
+	 * @returns {Error}
+	 */
+
+
+	function createInvalidPluginError() {
+	  deprecate('Use createInvalidLegacyPluginError() instead');
+	  return createInvalidLegacyPluginError.apply(void 0, arguments);
+	}
+	/**
+	 * Creates an error object to be thrown when a mocha object's `run` method is executed while it is already disposed.
+	 * @param {string} message The error message to be displayed.
+	 * @param {boolean} cleanReferencesAfterRun the value of `cleanReferencesAfterRun`
+	 * @param {Mocha} instance the mocha instance that throw this error
+	 * @static
+	 */
+
+
+	function createMochaInstanceAlreadyDisposedError(message, cleanReferencesAfterRun, instance) {
+	  var err = new Error(message);
+	  err.code = constants$4.INSTANCE_ALREADY_DISPOSED;
+	  err.cleanReferencesAfterRun = cleanReferencesAfterRun;
+	  err.instance = instance;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when a mocha object's `run` method is called while a test run is in progress.
+	 * @param {string} message The error message to be displayed.
+	 * @static
+	 * @public
+	 */
+
+
+	function createMochaInstanceAlreadyRunningError(message, instance) {
+	  var err = new Error(message);
+	  err.code = constants$4.INSTANCE_ALREADY_RUNNING;
+	  err.instance = instance;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when done() is called multiple times in a test
+	 *
+	 * @public
+	 * @param {Runnable} runnable - Original runnable
+	 * @param {Error} [originalErr] - Original error, if any
+	 * @returns {Error} instance detailing the error condition
+	 * @static
+	 */
+
+
+	function createMultipleDoneError$1(runnable, originalErr) {
+	  var title;
+
+	  try {
+	    title = format('<%s>', runnable.fullTitle());
+
+	    if (runnable.parent.root) {
+	      title += ' (of root suite)';
+	    }
+	  } catch (ignored) {
+	    title = format('<%s> (of unknown suite)', runnable.title);
+	  }
+
+	  var message = format('done() called multiple times in %s %s', runnable.type ? runnable.type : 'unknown runnable', title);
+
+	  if (runnable.file) {
+	    message += format(' of file %s', runnable.file);
+	  }
+
+	  if (originalErr) {
+	    message += format('; in addition, done() received error: %s', originalErr);
+	  }
+
+	  var err = new Error(message);
+	  err.code = constants$4.MULTIPLE_DONE;
+	  err.valueType = _typeof(originalErr);
+	  err.value = originalErr;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when `.only()` is used with
+	 * `--forbid-only`.
+	 * @static
+	 * @public
+	 * @param {Mocha} mocha - Mocha instance
+	 * @returns {Error} Error with code {@link constants.FORBIDDEN_EXCLUSIVITY}
+	 */
+
+
+	function createForbiddenExclusivityError$1(mocha) {
+	  var err = new Error(mocha.isWorker ? '`.only` is not supported in parallel mode' : '`.only` forbidden by --forbid-only');
+	  err.code = constants$4.FORBIDDEN_EXCLUSIVITY;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when a plugin definition is invalid
+	 * @static
+	 * @param {string} msg - Error message
+	 * @param {PluginDefinition} [pluginDef] - Problematic plugin definition
+	 * @public
+	 * @returns {Error} Error with code {@link constants.INVALID_PLUGIN_DEFINITION}
+	 */
+
+
+	function createInvalidPluginDefinitionError(msg, pluginDef) {
+	  var err = new Error(msg);
+	  err.code = constants$4.INVALID_PLUGIN_DEFINITION;
+	  err.pluginDef = pluginDef;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when a plugin implementation (user code) is invalid
+	 * @static
+	 * @param {string} msg - Error message
+	 * @param {Object} [opts] - Plugin definition and user-supplied implementation
+	 * @param {PluginDefinition} [opts.pluginDef] - Plugin Definition
+	 * @param {*} [opts.pluginImpl] - Plugin Implementation (user-supplied)
+	 * @public
+	 * @returns {Error} Error with code {@link constants.INVALID_PLUGIN_DEFINITION}
+	 */
+
+
+	function createInvalidPluginImplementationError(msg) {
+	  var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+	      pluginDef = _ref.pluginDef,
+	      pluginImpl = _ref.pluginImpl;
+
+	  var err = new Error(msg);
+	  err.code = constants$4.INVALID_PLUGIN_IMPLEMENTATION;
+	  err.pluginDef = pluginDef;
+	  err.pluginImpl = pluginImpl;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when a runnable exceeds its allowed run time.
+	 * @static
+	 * @param {string} msg - Error message
+	 * @param {number} [timeout] - Timeout in ms
+	 * @param {string} [file] - File, if given
+	 * @returns {MochaTimeoutError}
+	 */
+
+
+	function createTimeoutError$1(msg, timeout, file) {
+	  var err = new Error(msg);
+	  err.code = constants$4.TIMEOUT;
+	  err.timeout = timeout;
+	  err.file = file;
+	  return err;
+	}
+	/**
+	 * Creates an error object to be thrown when file is unparsable
+	 * @public
+	 * @static
+	 * @param {string} message - Error message to be displayed.
+	 * @param {string} filename - File name
+	 * @returns {Error} Error with code {@link constants.UNPARSABLE_FILE}
+	 */
+
+
+	function createUnparsableFileError(message, filename) {
+	  var err = new Error(message);
+	  err.code = constants$4.UNPARSABLE_FILE;
+	  return err;
+	}
+	/**
+	 * Returns `true` if an error came out of Mocha.
+	 * _Can suffer from false negatives, but not false positives._
+	 * @static
+	 * @public
+	 * @param {*} err - Error, or anything
+	 * @returns {boolean}
+	 */
+
+
+	var isMochaError$1 = function isMochaError(err) {
+	  return Boolean(err && _typeof(err) === 'object' && MOCHA_ERRORS.has(err.code));
+	};
+
+	var errors = {
+	  constants: constants$4,
+	  createFatalError: createFatalError$1,
+	  createForbiddenExclusivityError: createForbiddenExclusivityError$1,
+	  createInvalidArgumentTypeError: createInvalidArgumentTypeError$1,
+	  createInvalidArgumentValueError: createInvalidArgumentValueError,
+	  createInvalidExceptionError: createInvalidExceptionError$2,
+	  createInvalidInterfaceError: createInvalidInterfaceError,
+	  createInvalidLegacyPluginError: createInvalidLegacyPluginError,
+	  createInvalidPluginDefinitionError: createInvalidPluginDefinitionError,
+	  createInvalidPluginError: createInvalidPluginError,
+	  createInvalidPluginImplementationError: createInvalidPluginImplementationError,
+	  createInvalidReporterError: createInvalidReporterError,
+	  createMissingArgumentError: createMissingArgumentError$1,
+	  createMochaInstanceAlreadyDisposedError: createMochaInstanceAlreadyDisposedError,
+	  createMochaInstanceAlreadyRunningError: createMochaInstanceAlreadyRunningError,
+	  createMultipleDoneError: createMultipleDoneError$1,
+	  createNoFilesMatchPatternError: createNoFilesMatchPatternError,
+	  createTimeoutError: createTimeoutError$1,
+	  createUnparsableFileError: createUnparsableFileError,
+	  createUnsupportedError: createUnsupportedError$2,
+	  deprecate: deprecate,
+	  isMochaError: isMochaError$1,
+	  warn: warn
+	};
+
+	var EventEmitter$1 = EventEmitter$2.EventEmitter;
+	var debug$1 = browser('mocha:runnable');
+	var createInvalidExceptionError$1 = errors.createInvalidExceptionError,
+	    createMultipleDoneError = errors.createMultipleDoneError,
+	    createTimeoutError = errors.createTimeoutError;
+	/**
+	 * Save timer references to avoid Sinon interfering (see GH-237).
+	 * @private
+	 */
+
+	var Date$4 = commonjsGlobal.Date;
+	var setTimeout$3 = commonjsGlobal.setTimeout;
+	var clearTimeout$1 = commonjsGlobal.clearTimeout;
+	var toString = Object.prototype.toString;
+	var runnable = Runnable;
+	/**
+	 * Initialize a new `Runnable` with the given `title` and callback `fn`.
+	 *
+	 * @class
+	 * @extends external:EventEmitter
+	 * @public
+	 * @param {String} title
+	 * @param {Function} fn
+	 */
+
+	function Runnable(title, fn) {
+	  this.title = title;
+	  this.fn = fn;
+	  this.body = (fn || '').toString();
+	  this.async = fn && fn.length;
+	  this.sync = !this.async;
+	  this._timeout = 2000;
+	  this._slow = 75;
+	  this._retries = -1;
+	  utils.assignNewMochaID(this);
+	  Object.defineProperty(this, 'id', {
+	    get: function get() {
+	      return utils.getMochaID(this);
+	    }
+	  });
+	  this.reset();
+	}
+	/**
+	 * Inherit from `EventEmitter.prototype`.
+	 */
+
+
+	utils.inherits(Runnable, EventEmitter$1);
+	/**
+	 * Resets the state initially or for a next run.
+	 */
+
+	Runnable.prototype.reset = function () {
+	  this.timedOut = false;
+	  this._currentRetry = 0;
+	  this.pending = false;
+	  delete this.state;
+	  delete this.err;
+	};
+	/**
+	 * Get current timeout value in msecs.
+	 *
+	 * @private
+	 * @returns {number} current timeout threshold value
+	 */
+
+	/**
+	 * @summary
+	 * Set timeout threshold value (msecs).
+	 *
+	 * @description
+	 * A string argument can use shorthand (e.g., "2s") and will be converted.
+	 * The value will be clamped to range [<code>0</code>, <code>2^<sup>31</sup>-1</code>].
+	 * If clamped value matches either range endpoint, timeouts will be disabled.
+	 *
+	 * @private
+	 * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout#Maximum_delay_value}
+	 * @param {number|string} ms - Timeout threshold value.
+	 * @returns {Runnable} this
+	 * @chainable
+	 */
+
+
+	Runnable.prototype.timeout = function (ms) {
+	  if (!arguments.length) {
+	    return this._timeout;
+	  }
+
+	  if (typeof ms === 'string') {
+	    ms = ms$1(ms);
+	  } // Clamp to range
+
+
+	  var INT_MAX = Math.pow(2, 31) - 1;
+	  var range = [0, INT_MAX];
+	  ms = utils.clamp(ms, range); // see #1652 for reasoning
+
+	  if (ms === range[0] || ms === range[1]) {
+	    this._timeout = 0;
+	  } else {
+	    this._timeout = ms;
+	  }
+
+	  debug$1('timeout %d', this._timeout);
+
+	  if (this.timer) {
+	    this.resetTimeout();
+	  }
+
+	  return this;
+	};
+	/**
+	 * Set or get slow `ms`.
+	 *
+	 * @private
+	 * @param {number|string} ms
+	 * @return {Runnable|number} ms or Runnable instance.
+	 */
+
+
+	Runnable.prototype.slow = function (ms) {
+	  if (!arguments.length || typeof ms === 'undefined') {
+	    return this._slow;
+	  }
+
+	  if (typeof ms === 'string') {
+	    ms = ms$1(ms);
+	  }
+
+	  debug$1('slow %d', ms);
+	  this._slow = ms;
+	  return this;
+	};
+	/**
+	 * Halt and mark as pending.
+	 *
+	 * @memberof Mocha.Runnable
+	 * @public
+	 */
+
+
+	Runnable.prototype.skip = function () {
+	  this.pending = true;
+	  throw new pending('sync skip; aborting execution');
+	};
+	/**
+	 * Check if this runnable or its parent suite is marked as pending.
+	 *
+	 * @private
+	 */
+
+
+	Runnable.prototype.isPending = function () {
+	  return this.pending || this.parent && this.parent.isPending();
+	};
+	/**
+	 * Return `true` if this Runnable has failed.
+	 * @return {boolean}
+	 * @private
+	 */
+
+
+	Runnable.prototype.isFailed = function () {
+	  return !this.isPending() && this.state === constants$3.STATE_FAILED;
+	};
+	/**
+	 * Return `true` if this Runnable has passed.
+	 * @return {boolean}
+	 * @private
+	 */
+
+
+	Runnable.prototype.isPassed = function () {
+	  return !this.isPending() && this.state === constants$3.STATE_PASSED;
+	};
+	/**
+	 * Set or get number of retries.
+	 *
+	 * @private
+	 */
+
+
+	Runnable.prototype.retries = function (n) {
+	  if (!arguments.length) {
+	    return this._retries;
+	  }
+
+	  this._retries = n;
+	};
+	/**
+	 * Set or get current retry
+	 *
+	 * @private
+	 */
+
+
+	Runnable.prototype.currentRetry = function (n) {
+	  if (!arguments.length) {
+	    return this._currentRetry;
+	  }
+
+	  this._currentRetry = n;
+	};
+	/**
+	 * Return the full title generated by recursively concatenating the parent's
+	 * full title.
+	 *
+	 * @memberof Mocha.Runnable
+	 * @public
+	 * @return {string}
+	 */
+
+
+	Runnable.prototype.fullTitle = function () {
+	  return this.titlePath().join(' ');
+	};
+	/**
+	 * Return the title path generated by concatenating the parent's title path with the title.
+	 *
+	 * @memberof Mocha.Runnable
+	 * @public
+	 * @return {string}
+	 */
+
+
+	Runnable.prototype.titlePath = function () {
+	  return this.parent.titlePath().concat([this.title]);
+	};
+	/**
+	 * Clear the timeout.
+	 *
+	 * @private
+	 */
+
+
+	Runnable.prototype.clearTimeout = function () {
+	  clearTimeout$1(this.timer);
+	};
+	/**
+	 * Reset the timeout.
+	 *
+	 * @private
+	 */
+
+
+	Runnable.prototype.resetTimeout = function () {
+	  var self = this;
+	  var ms = this.timeout();
+
+	  if (ms === 0) {
+	    return;
+	  }
+
+	  this.clearTimeout();
+	  this.timer = setTimeout$3(function () {
+	    if (self.timeout() === 0) {
+	      return;
+	    }
+
+	    self.callback(self._timeoutError(ms));
+	    self.timedOut = true;
+	  }, ms);
+	};
+	/**
+	 * Set or get a list of whitelisted globals for this test run.
+	 *
+	 * @private
+	 * @param {string[]} globals
+	 */
+
+
+	Runnable.prototype.globals = function (globals) {
+	  if (!arguments.length) {
+	    return this._allowedGlobals;
+	  }
+
+	  this._allowedGlobals = globals;
+	};
+	/**
+	 * Run the test and invoke `fn(err)`.
+	 *
+	 * @param {Function} fn
+	 * @private
+	 */
+
+
+	Runnable.prototype.run = function (fn) {
+	  var self = this;
+	  var start = new Date$4();
+	  var ctx = this.ctx;
+	  var finished;
+	  var errorWasHandled = false;
+	  if (this.isPending()) return fn(); // Sometimes the ctx exists, but it is not runnable
+
+	  if (ctx && ctx.runnable) {
+	    ctx.runnable(this);
+	  } // called multiple times
+
+
+	  function multiple(err) {
+	    if (errorWasHandled) {
+	      return;
+	    }
+
+	    errorWasHandled = true;
+	    self.emit('error', createMultipleDoneError(self, err));
+	  } // finished
+
+
+	  function done(err) {
+	    var ms = self.timeout();
+
+	    if (self.timedOut) {
+	      return;
+	    }
+
+	    if (finished) {
+	      return multiple(err);
+	    }
+
+	    self.clearTimeout();
+	    self.duration = new Date$4() - start;
+	    finished = true;
+
+	    if (!err && self.duration > ms && ms > 0) {
+	      err = self._timeoutError(ms);
+	    }
+
+	    fn(err);
+	  } // for .resetTimeout() and Runner#uncaught()
+
+
+	  this.callback = done;
+
+	  if (this.fn && typeof this.fn.call !== 'function') {
+	    done(new TypeError('A runnable must be passed a function as its second argument.'));
+	    return;
+	  } // explicit async with `done` argument
+
+
+	  if (this.async) {
+	    this.resetTimeout(); // allows skip() to be used in an explicit async context
+
+	    this.skip = function asyncSkip() {
+	      this.pending = true;
+	      done(); // halt execution, the uncaught handler will ignore the failure.
+
+	      throw new pending('async skip; aborting execution');
+	    };
+
+	    try {
+	      callFnAsync(this.fn);
+	    } catch (err) {
+	      // handles async runnables which actually run synchronously
+	      errorWasHandled = true;
+
+	      if (err instanceof pending) {
+	        return; // done() is already called in this.skip()
+	      } else if (this.allowUncaught) {
+	        throw err;
+	      }
+
+	      done(Runnable.toValueOrError(err));
+	    }
+
+	    return;
+	  } // sync or promise-returning
+
+
+	  try {
+	    callFn(this.fn);
+	  } catch (err) {
+	    errorWasHandled = true;
+
+	    if (err instanceof pending) {
+	      return done();
+	    } else if (this.allowUncaught) {
+	      throw err;
+	    }
+
+	    done(Runnable.toValueOrError(err));
+	  }
+
+	  function callFn(fn) {
+	    var result = fn.call(ctx);
+
+	    if (result && typeof result.then === 'function') {
+	      self.resetTimeout();
+	      result.then(function () {
+	        done(); // Return null so libraries like bluebird do not warn about
+	        // subsequently constructed Promises.
+
+	        return null;
+	      }, function (reason) {
+	        done(reason || new Error('Promise rejected with no or falsy reason'));
+	      });
+	    } else {
+	      if (self.asyncOnly) {
+	        return done(new Error('--async-only option in use without declaring `done()` or returning a promise'));
+	      }
+
+	      done();
+	    }
+	  }
+
+	  function callFnAsync(fn) {
+	    var result = fn.call(ctx, function (err) {
+	      if (err instanceof Error || toString.call(err) === '[object Error]') {
+	        return done(err);
+	      }
+
+	      if (err) {
+	        if (Object.prototype.toString.call(err) === '[object Object]') {
+	          return done(new Error('done() invoked with non-Error: ' + JSON.stringify(err)));
+	        }
+
+	        return done(new Error('done() invoked with non-Error: ' + err));
+	      }
+
+	      if (result && utils.isPromise(result)) {
+	        return done(new Error('Resolution method is overspecified. Specify a callback *or* return a Promise; not both.'));
+	      }
+
+	      done();
+	    });
+	  }
+	};
+	/**
+	 * Instantiates a "timeout" error
+	 *
+	 * @param {number} ms - Timeout (in milliseconds)
+	 * @returns {Error} a "timeout" error
+	 * @private
+	 */
+
+
+	Runnable.prototype._timeoutError = function (ms) {
+	  var msg = "Timeout of ".concat(ms, "ms exceeded. For async tests and hooks, ensure \"done()\" is called; if returning a Promise, ensure it resolves.");
+
+	  if (this.file) {
+	    msg += ' (' + this.file + ')';
+	  }
+
+	  return createTimeoutError(msg, ms, this.file);
+	};
+
+	var constants$3 = utils.defineConstants(
+	/**
+	 * {@link Runnable}-related constants.
+	 * @public
+	 * @memberof Runnable
+	 * @readonly
+	 * @static
+	 * @alias constants
+	 * @enum {string}
+	 */
+	{
+	  /**
+	   * Value of `state` prop when a `Runnable` has failed
+	   */
+	  STATE_FAILED: 'failed',
+
+	  /**
+	   * Value of `state` prop when a `Runnable` has passed
+	   */
+	  STATE_PASSED: 'passed',
+
+	  /**
+	   * Value of `state` prop when a `Runnable` has been skipped by user
+	   */
+	  STATE_PENDING: 'pending'
+	});
+	/**
+	 * Given `value`, return identity if truthy, otherwise create an "invalid exception" error and return that.
+	 * @param {*} [value] - Value to return, if present
+	 * @returns {*|Error} `value`, otherwise an `Error`
+	 * @private
+	 */
+
+	Runnable.toValueOrError = function (value) {
+	  return value || createInvalidExceptionError$1('Runnable failed with falsy or undefined exception. Please throw an Error instead.', value);
+	};
+
+	Runnable.constants = constants$3;
+
+	var inherits = utils.inherits,
+	    constants$2 = utils.constants;
+	var MOCHA_ID_PROP_NAME$1 = constants$2.MOCHA_ID_PROP_NAME;
+	/**
+	 * Expose `Hook`.
+	 */
+
+	var hook = Hook;
+	/**
+	 * Initialize a new `Hook` with the given `title` and callback `fn`
+	 *
+	 * @class
+	 * @extends Runnable
+	 * @param {String} title
+	 * @param {Function} fn
+	 */
+
+	function Hook(title, fn) {
+	  runnable.call(this, title, fn);
+	  this.type = 'hook';
 	}
-};
+	/**
+	 * Inherit from `Runnable.prototype`.
+	 */
+
+
+	inherits(Hook, runnable);
+	/**
+	 * Resets the state for a next run.
+	 */
+
+	Hook.prototype.reset = function () {
+	  runnable.prototype.reset.call(this);
+	  delete this._error;
+	};
+	/**
+	 * Get or set the test `err`.
+	 *
+	 * @memberof Hook
+	 * @public
+	 * @param {Error} err
+	 * @return {Error}
+	 */
+
+
+	Hook.prototype.error = function (err) {
+	  if (!arguments.length) {
+	    err = this._error;
+	    this._error = null;
+	    return err;
+	  }
+
+	  this._error = err;
+	};
+	/**
+	 * Returns an object suitable for IPC.
+	 * Functions are represented by keys beginning with `$$`.
+	 * @private
+	 * @returns {Object}
+	 */
+
+
+	Hook.prototype.serialize = function serialize() {
+	  return _defineProperty({
+	    $$currentRetry: this.currentRetry(),
+	    $$fullTitle: this.fullTitle(),
+	    $$isPending: Boolean(this.isPending()),
+	    $$titlePath: this.titlePath(),
+	    ctx: this.ctx && this.ctx.currentTest ? {
+	      currentTest: _defineProperty({
+	        title: this.ctx.currentTest.title
+	      }, MOCHA_ID_PROP_NAME$1, this.ctx.currentTest.id)
+	    } : {},
+	    duration: this.duration,
+	    file: this.file,
+	    parent: _defineProperty({
+	      $$fullTitle: this.parent.fullTitle()
+	    }, MOCHA_ID_PROP_NAME$1, this.parent.id),
+	    state: this.state,
+	    title: this.title,
+	    type: this.type
+	  }, MOCHA_ID_PROP_NAME$1, this.id);
+	};
+
+	var suite = createCommonjsModule(function (module, exports) {
+	  /**
+	   * Module dependencies.
+	   * @private
+	   */
+
+	  var EventEmitter = EventEmitter$2.EventEmitter;
+	  var assignNewMochaID = utils.assignNewMochaID,
+	      clamp = utils.clamp,
+	      utilsConstants = utils.constants,
+	      createMap = utils.createMap,
+	      defineConstants = utils.defineConstants,
+	      getMochaID = utils.getMochaID,
+	      inherits = utils.inherits,
+	      isString = utils.isString;
+	  var debug = browser('mocha:suite');
+	  var MOCHA_ID_PROP_NAME = utilsConstants.MOCHA_ID_PROP_NAME;
+	  /**
+	   * Expose `Suite`.
+	   */
+
+	  module.exports = Suite;
+	  /**
+	   * Create a new `Suite` with the given `title` and parent `Suite`.
+	   *
+	   * @public
+	   * @param {Suite} parent - Parent suite (required!)
+	   * @param {string} title - Title
+	   * @return {Suite}
+	   */
+
+	  Suite.create = function (parent, title) {
+	    var suite = new Suite(title, parent.ctx);
+	    suite.parent = parent;
+	    title = suite.fullTitle();
+	    parent.addSuite(suite);
+	    return suite;
+	  };
+	  /**
+	   * Constructs a new `Suite` instance with the given `title`, `ctx`, and `isRoot`.
+	   *
+	   * @public
+	   * @class
+	   * @extends EventEmitter
+	   * @see {@link https://nodejs.org/api/events.html#events_class_eventemitter|EventEmitter}
+	   * @param {string} title - Suite title.
+	   * @param {Context} parentContext - Parent context instance.
+	   * @param {boolean} [isRoot=false] - Whether this is the root suite.
+	   */
+
+
+	  function Suite(title, parentContext, isRoot) {
+	    if (!isString(title)) {
+	      throw errors.createInvalidArgumentTypeError('Suite argument "title" must be a string. Received type "' + _typeof(title) + '"', 'title', 'string');
+	    }
+
+	    this.title = title;
+
+	    function Context() {}
+
+	    Context.prototype = parentContext;
+	    this.ctx = new Context();
+	    this.suites = [];
+	    this.tests = [];
+	    this.root = isRoot === true;
+	    this.pending = false;
+	    this._retries = -1;
+	    this._beforeEach = [];
+	    this._beforeAll = [];
+	    this._afterEach = [];
+	    this._afterAll = [];
+	    this._timeout = 2000;
+	    this._slow = 75;
+	    this._bail = false;
+	    this._onlyTests = [];
+	    this._onlySuites = [];
+	    assignNewMochaID(this);
+	    Object.defineProperty(this, 'id', {
+	      get: function get() {
+	        return getMochaID(this);
+	      }
+	    });
+	    this.reset();
+	    this.on('newListener', function (event) {
+	      if (deprecatedEvents[event]) {
+	        errors.deprecate('Event "' + event + '" is deprecated.  Please let the Mocha team know about your use case: https://git.io/v6Lwm');
+	      }
+	    });
+	  }
+	  /**
+	   * Inherit from `EventEmitter.prototype`.
+	   */
+
+
+	  inherits(Suite, EventEmitter);
+	  /**
+	   * Resets the state initially or for a next run.
+	   */
+
+	  Suite.prototype.reset = function () {
+	    this.delayed = false;
+
+	    function doReset(thingToReset) {
+	      thingToReset.reset();
+	    }
+
+	    this.suites.forEach(doReset);
+	    this.tests.forEach(doReset);
+
+	    this._beforeEach.forEach(doReset);
+
+	    this._afterEach.forEach(doReset);
+
+	    this._beforeAll.forEach(doReset);
+
+	    this._afterAll.forEach(doReset);
+	  };
+	  /**
+	   * Return a clone of this `Suite`.
+	   *
+	   * @private
+	   * @return {Suite}
+	   */
+
+
+	  Suite.prototype.clone = function () {
+	    var suite = new Suite(this.title);
+	    debug('clone');
+	    suite.ctx = this.ctx;
+	    suite.root = this.root;
+	    suite.timeout(this.timeout());
+	    suite.retries(this.retries());
+	    suite.slow(this.slow());
+	    suite.bail(this.bail());
+	    return suite;
+	  };
+	  /**
+	   * Set or get timeout `ms` or short-hand such as "2s".
+	   *
+	   * @private
+	   * @todo Do not attempt to set value if `ms` is undefined
+	   * @param {number|string} ms
+	   * @return {Suite|number} for chaining
+	   */
+
+
+	  Suite.prototype.timeout = function (ms) {
+	    if (!arguments.length) {
+	      return this._timeout;
+	    }
+
+	    if (typeof ms === 'string') {
+	      ms = ms$1(ms);
+	    } // Clamp to range
+
+
+	    var INT_MAX = Math.pow(2, 31) - 1;
+	    var range = [0, INT_MAX];
+	    ms = clamp(ms, range);
+	    debug('timeout %d', ms);
+	    this._timeout = parseInt(ms, 10);
+	    return this;
+	  };
+	  /**
+	   * Set or get number of times to retry a failed test.
+	   *
+	   * @private
+	   * @param {number|string} n
+	   * @return {Suite|number} for chaining
+	   */
+
+
+	  Suite.prototype.retries = function (n) {
+	    if (!arguments.length) {
+	      return this._retries;
+	    }
+
+	    debug('retries %d', n);
+	    this._retries = parseInt(n, 10) || 0;
+	    return this;
+	  };
+	  /**
+	   * Set or get slow `ms` or short-hand such as "2s".
+	   *
+	   * @private
+	   * @param {number|string} ms
+	   * @return {Suite|number} for chaining
+	   */
+
+
+	  Suite.prototype.slow = function (ms) {
+	    if (!arguments.length) {
+	      return this._slow;
+	    }
+
+	    if (typeof ms === 'string') {
+	      ms = ms$1(ms);
+	    }
+
+	    debug('slow %d', ms);
+	    this._slow = ms;
+	    return this;
+	  };
+	  /**
+	   * Set or get whether to bail after first error.
+	   *
+	   * @private
+	   * @param {boolean} bail
+	   * @return {Suite|number} for chaining
+	   */
+
+
+	  Suite.prototype.bail = function (bail) {
+	    if (!arguments.length) {
+	      return this._bail;
+	    }
+
+	    debug('bail %s', bail);
+	    this._bail = bail;
+	    return this;
+	  };
+	  /**
+	   * Check if this suite or its parent suite is marked as pending.
+	   *
+	   * @private
+	   */
+
+
+	  Suite.prototype.isPending = function () {
+	    return this.pending || this.parent && this.parent.isPending();
+	  };
+	  /**
+	   * Generic hook-creator.
+	   * @private
+	   * @param {string} title - Title of hook
+	   * @param {Function} fn - Hook callback
+	   * @returns {Hook} A new hook
+	   */
+
+
+	  Suite.prototype._createHook = function (title, fn) {
+	    var hook$1 = new hook(title, fn);
+	    hook$1.parent = this;
+	    hook$1.timeout(this.timeout());
+	    hook$1.retries(this.retries());
+	    hook$1.slow(this.slow());
+	    hook$1.ctx = this.ctx;
+	    hook$1.file = this.file;
+	    return hook$1;
+	  };
+	  /**
+	   * Run `fn(test[, done])` before running tests.
+	   *
+	   * @private
+	   * @param {string} title
+	   * @param {Function} fn
+	   * @return {Suite} for chaining
+	   */
+
+
+	  Suite.prototype.beforeAll = function (title, fn) {
+	    if (this.isPending()) {
+	      return this;
+	    }
+
+	    if (typeof title === 'function') {
+	      fn = title;
+	      title = fn.name;
+	    }
+
+	    title = '"before all" hook' + (title ? ': ' + title : '');
+
+	    var hook = this._createHook(title, fn);
+
+	    this._beforeAll.push(hook);
+
+	    this.emit(constants.EVENT_SUITE_ADD_HOOK_BEFORE_ALL, hook);
+	    return this;
+	  };
+	  /**
+	   * Run `fn(test[, done])` after running tests.
+	   *
+	   * @private
+	   * @param {string} title
+	   * @param {Function} fn
+	   * @return {Suite} for chaining
+	   */
+
+
+	  Suite.prototype.afterAll = function (title, fn) {
+	    if (this.isPending()) {
+	      return this;
+	    }
+
+	    if (typeof title === 'function') {
+	      fn = title;
+	      title = fn.name;
+	    }
+
+	    title = '"after all" hook' + (title ? ': ' + title : '');
+
+	    var hook = this._createHook(title, fn);
+
+	    this._afterAll.push(hook);
+
+	    this.emit(constants.EVENT_SUITE_ADD_HOOK_AFTER_ALL, hook);
+	    return this;
+	  };
+	  /**
+	   * Run `fn(test[, done])` before each test case.
+	   *
+	   * @private
+	   * @param {string} title
+	   * @param {Function} fn
+	   * @return {Suite} for chaining
+	   */
+
+
+	  Suite.prototype.beforeEach = function (title, fn) {
+	    if (this.isPending()) {
+	      return this;
+	    }
+
+	    if (typeof title === 'function') {
+	      fn = title;
+	      title = fn.name;
+	    }
+
+	    title = '"before each" hook' + (title ? ': ' + title : '');
+
+	    var hook = this._createHook(title, fn);
+
+	    this._beforeEach.push(hook);
+
+	    this.emit(constants.EVENT_SUITE_ADD_HOOK_BEFORE_EACH, hook);
+	    return this;
+	  };
+	  /**
+	   * Run `fn(test[, done])` after each test case.
+	   *
+	   * @private
+	   * @param {string} title
+	   * @param {Function} fn
+	   * @return {Suite} for chaining
+	   */
+
+
+	  Suite.prototype.afterEach = function (title, fn) {
+	    if (this.isPending()) {
+	      return this;
+	    }
+
+	    if (typeof title === 'function') {
+	      fn = title;
+	      title = fn.name;
+	    }
+
+	    title = '"after each" hook' + (title ? ': ' + title : '');
+
+	    var hook = this._createHook(title, fn);
+
+	    this._afterEach.push(hook);
+
+	    this.emit(constants.EVENT_SUITE_ADD_HOOK_AFTER_EACH, hook);
+	    return this;
+	  };
+	  /**
+	   * Add a test `suite`.
+	   *
+	   * @private
+	   * @param {Suite} suite
+	   * @return {Suite} for chaining
+	   */
+
+
+	  Suite.prototype.addSuite = function (suite) {
+	    suite.parent = this;
+	    suite.root = false;
+	    suite.timeout(this.timeout());
+	    suite.retries(this.retries());
+	    suite.slow(this.slow());
+	    suite.bail(this.bail());
+	    this.suites.push(suite);
+	    this.emit(constants.EVENT_SUITE_ADD_SUITE, suite);
+	    return this;
+	  };
+	  /**
+	   * Add a `test` to this suite.
+	   *
+	   * @private
+	   * @param {Test} test
+	   * @return {Suite} for chaining
+	   */
+
+
+	  Suite.prototype.addTest = function (test) {
+	    test.parent = this;
+	    test.timeout(this.timeout());
+	    test.retries(this.retries());
+	    test.slow(this.slow());
+	    test.ctx = this.ctx;
+	    this.tests.push(test);
+	    this.emit(constants.EVENT_SUITE_ADD_TEST, test);
+	    return this;
+	  };
+	  /**
+	   * Return the full title generated by recursively concatenating the parent's
+	   * full title.
+	   *
+	   * @memberof Suite
+	   * @public
+	   * @return {string}
+	   */
+
+
+	  Suite.prototype.fullTitle = function () {
+	    return this.titlePath().join(' ');
+	  };
+	  /**
+	   * Return the title path generated by recursively concatenating the parent's
+	   * title path.
+	   *
+	   * @memberof Suite
+	   * @public
+	   * @return {string}
+	   */
+
+
+	  Suite.prototype.titlePath = function () {
+	    var result = [];
+
+	    if (this.parent) {
+	      result = result.concat(this.parent.titlePath());
+	    }
+
+	    if (!this.root) {
+	      result.push(this.title);
+	    }
+
+	    return result;
+	  };
+	  /**
+	   * Return the total number of tests.
+	   *
+	   * @memberof Suite
+	   * @public
+	   * @return {number}
+	   */
+
+
+	  Suite.prototype.total = function () {
+	    return this.suites.reduce(function (sum, suite) {
+	      return sum + suite.total();
+	    }, 0) + this.tests.length;
+	  };
+	  /**
+	   * Iterates through each suite recursively to find all tests. Applies a
+	   * function in the format `fn(test)`.
+	   *
+	   * @private
+	   * @param {Function} fn
+	   * @return {Suite}
+	   */
+
+
+	  Suite.prototype.eachTest = function (fn) {
+	    this.tests.forEach(fn);
+	    this.suites.forEach(function (suite) {
+	      suite.eachTest(fn);
+	    });
+	    return this;
+	  };
+	  /**
+	   * This will run the root suite if we happen to be running in delayed mode.
+	   * @private
+	   */
+
+
+	  Suite.prototype.run = function run() {
+	    if (this.root) {
+	      this.emit(constants.EVENT_ROOT_SUITE_RUN);
+	    }
+	  };
+	  /**
+	   * Determines whether a suite has an `only` test or suite as a descendant.
+	   *
+	   * @private
+	   * @returns {Boolean}
+	   */
+
+
+	  Suite.prototype.hasOnly = function hasOnly() {
+	    return this._onlyTests.length > 0 || this._onlySuites.length > 0 || this.suites.some(function (suite) {
+	      return suite.hasOnly();
+	    });
+	  };
+	  /**
+	   * Filter suites based on `isOnly` logic.
+	   *
+	   * @private
+	   * @returns {Boolean}
+	   */
+
+
+	  Suite.prototype.filterOnly = function filterOnly() {
+	    if (this._onlyTests.length) {
+	      // If the suite contains `only` tests, run those and ignore any nested suites.
+	      this.tests = this._onlyTests;
+	      this.suites = [];
+	    } else {
+	      // Otherwise, do not run any of the tests in this suite.
+	      this.tests = [];
+
+	      this._onlySuites.forEach(function (onlySuite) {
+	        // If there are other `only` tests/suites nested in the current `only` suite, then filter that `only` suite.
+	        // Otherwise, all of the tests on this `only` suite should be run, so don't filter it.
+	        if (onlySuite.hasOnly()) {
+	          onlySuite.filterOnly();
+	        }
+	      }); // Run the `only` suites, as well as any other suites that have `only` tests/suites as descendants.
+
+
+	      var onlySuites = this._onlySuites;
+	      this.suites = this.suites.filter(function (childSuite) {
+	        return onlySuites.indexOf(childSuite) !== -1 || childSuite.filterOnly();
+	      });
+	    } // Keep the suite only if there is something to run
+
+
+	    return this.tests.length > 0 || this.suites.length > 0;
+	  };
+	  /**
+	   * Adds a suite to the list of subsuites marked `only`.
+	   *
+	   * @private
+	   * @param {Suite} suite
+	   */
+
+
+	  Suite.prototype.appendOnlySuite = function (suite) {
+	    this._onlySuites.push(suite);
+	  };
+	  /**
+	   * Marks a suite to be `only`.
+	   *
+	   * @private
+	   */
+
+
+	  Suite.prototype.markOnly = function () {
+	    this.parent && this.parent.appendOnlySuite(this);
+	  };
+	  /**
+	   * Adds a test to the list of tests marked `only`.
+	   *
+	   * @private
+	   * @param {Test} test
+	   */
+
+
+	  Suite.prototype.appendOnlyTest = function (test) {
+	    this._onlyTests.push(test);
+	  };
+	  /**
+	   * Returns the array of hooks by hook name; see `HOOK_TYPE_*` constants.
+	   * @private
+	   */
+
+
+	  Suite.prototype.getHooks = function getHooks(name) {
+	    return this['_' + name];
+	  };
+	  /**
+	   * cleans all references from this suite and all child suites.
+	   */
+
+
+	  Suite.prototype.dispose = function () {
+	    this.suites.forEach(function (suite) {
+	      suite.dispose();
+	    });
+	    this.cleanReferences();
+	  };
+	  /**
+	   * Cleans up the references to all the deferred functions
+	   * (before/after/beforeEach/afterEach) and tests of a Suite.
+	   * These must be deleted otherwise a memory leak can happen,
+	   * as those functions may reference variables from closures,
+	   * thus those variables can never be garbage collected as long
+	   * as the deferred functions exist.
+	   *
+	   * @private
+	   */
+
+
+	  Suite.prototype.cleanReferences = function cleanReferences() {
+	    function cleanArrReferences(arr) {
+	      for (var i = 0; i < arr.length; i++) {
+	        delete arr[i].fn;
+	      }
+	    }
+
+	    if (Array.isArray(this._beforeAll)) {
+	      cleanArrReferences(this._beforeAll);
+	    }
+
+	    if (Array.isArray(this._beforeEach)) {
+	      cleanArrReferences(this._beforeEach);
+	    }
+
+	    if (Array.isArray(this._afterAll)) {
+	      cleanArrReferences(this._afterAll);
+	    }
+
+	    if (Array.isArray(this._afterEach)) {
+	      cleanArrReferences(this._afterEach);
+	    }
+
+	    for (var i = 0; i < this.tests.length; i++) {
+	      delete this.tests[i].fn;
+	    }
+	  };
+	  /**
+	   * Returns an object suitable for IPC.
+	   * Functions are represented by keys beginning with `$$`.
+	   * @private
+	   * @returns {Object}
+	   */
+
+
+	  Suite.prototype.serialize = function serialize() {
+	    var _ref2;
+
+	    return _ref2 = {
+	      _bail: this._bail,
+	      $$fullTitle: this.fullTitle(),
+	      $$isPending: Boolean(this.isPending()),
+	      root: this.root,
+	      title: this.title
+	    }, _defineProperty(_ref2, MOCHA_ID_PROP_NAME, this.id), _defineProperty(_ref2, "parent", this.parent ? _defineProperty({}, MOCHA_ID_PROP_NAME, this.parent.id) : null), _ref2;
+	  };
+
+	  var constants = defineConstants(
+	  /**
+	   * {@link Suite}-related constants.
+	   * @public
+	   * @memberof Suite
+	   * @alias constants
+	   * @readonly
+	   * @static
+	   * @enum {string}
+	   */
+	  {
+	    /**
+	     * Event emitted after a test file has been loaded Not emitted in browser.
+	     */
+	    EVENT_FILE_POST_REQUIRE: 'post-require',
+
+	    /**
+	     * Event emitted before a test file has been loaded. In browser, this is emitted once an interface has been selected.
+	     */
+	    EVENT_FILE_PRE_REQUIRE: 'pre-require',
+
+	    /**
+	     * Event emitted immediately after a test file has been loaded. Not emitted in browser.
+	     */
+	    EVENT_FILE_REQUIRE: 'require',
+
+	    /**
+	     * Event emitted when `global.run()` is called (use with `delay` option)
+	     */
+	    EVENT_ROOT_SUITE_RUN: 'run',
+
+	    /**
+	     * Namespace for collection of a `Suite`'s "after all" hooks
+	     */
+	    HOOK_TYPE_AFTER_ALL: 'afterAll',
+
+	    /**
+	     * Namespace for collection of a `Suite`'s "after each" hooks
+	     */
+	    HOOK_TYPE_AFTER_EACH: 'afterEach',
+
+	    /**
+	     * Namespace for collection of a `Suite`'s "before all" hooks
+	     */
+	    HOOK_TYPE_BEFORE_ALL: 'beforeAll',
+
+	    /**
+	     * Namespace for collection of a `Suite`'s "before all" hooks
+	     */
+	    HOOK_TYPE_BEFORE_EACH: 'beforeEach',
+	    // the following events are all deprecated
+
+	    /**
+	     * Emitted after an "after all" `Hook` has been added to a `Suite`. Deprecated
+	     */
+	    EVENT_SUITE_ADD_HOOK_AFTER_ALL: 'afterAll',
+
+	    /**
+	     * Emitted after an "after each" `Hook` has been added to a `Suite` Deprecated
+	     */
+	    EVENT_SUITE_ADD_HOOK_AFTER_EACH: 'afterEach',
+
+	    /**
+	     * Emitted after an "before all" `Hook` has been added to a `Suite` Deprecated
+	     */
+	    EVENT_SUITE_ADD_HOOK_BEFORE_ALL: 'beforeAll',
+
+	    /**
+	     * Emitted after an "before each" `Hook` has been added to a `Suite` Deprecated
+	     */
+	    EVENT_SUITE_ADD_HOOK_BEFORE_EACH: 'beforeEach',
+
+	    /**
+	     * Emitted after a child `Suite` has been added to a `Suite`. Deprecated
+	     */
+	    EVENT_SUITE_ADD_SUITE: 'suite',
+
+	    /**
+	     * Emitted after a `Test` has been added to a `Suite`. Deprecated
+	     */
+	    EVENT_SUITE_ADD_TEST: 'test'
+	  });
+	  /**
+	   * @summary There are no known use cases for these events.
+	   * @desc This is a `Set`-like object having all keys being the constant's string value and the value being `true`.
+	   * @todo Remove eventually
+	   * @type {Object<string,boolean>}
+	   * @ignore
+	   */
+
+	  var deprecatedEvents = Object.keys(constants).filter(function (constant) {
+	    return constant.substring(0, 15) === 'EVENT_SUITE_ADD';
+	  }).reduce(function (acc, constant) {
+	    acc[constants[constant]] = true;
+	    return acc;
+	  }, createMap());
+	  Suite.constants = constants;
+	});
+
+	/**
+	 * Module dependencies.
+	 * @private
+	 */
+
+
+	var EventEmitter = EventEmitter$2.EventEmitter;
+	var debug = browser('mocha:runner');
+	var HOOK_TYPE_BEFORE_EACH = suite.constants.HOOK_TYPE_BEFORE_EACH;
+	var HOOK_TYPE_AFTER_EACH = suite.constants.HOOK_TYPE_AFTER_EACH;
+	var HOOK_TYPE_AFTER_ALL = suite.constants.HOOK_TYPE_AFTER_ALL;
+	var HOOK_TYPE_BEFORE_ALL = suite.constants.HOOK_TYPE_BEFORE_ALL;
+	var EVENT_ROOT_SUITE_RUN = suite.constants.EVENT_ROOT_SUITE_RUN;
+	var STATE_FAILED = runnable.constants.STATE_FAILED;
+	var STATE_PASSED = runnable.constants.STATE_PASSED;
+	var STATE_PENDING = runnable.constants.STATE_PENDING;
+	var stackFilter = utils.stackTraceFilter();
+	var stringify = utils.stringify;
+	var createInvalidExceptionError = errors.createInvalidExceptionError,
+	    createUnsupportedError$1 = errors.createUnsupportedError,
+	    createFatalError = errors.createFatalError,
+	    isMochaError = errors.isMochaError,
+	    errorConstants = errors.constants;
+	/**
+	 * Non-enumerable globals.
+	 * @private
+	 * @readonly
+	 */
+
+	var globals = ['setTimeout', 'clearTimeout', 'setInterval', 'clearInterval', 'XMLHttpRequest', 'Date', 'setImmediate', 'clearImmediate'];
+	var constants$1 = utils.defineConstants(
+	/**
+	 * {@link Runner}-related constants.
+	 * @public
+	 * @memberof Runner
+	 * @readonly
+	 * @alias constants
+	 * @static
+	 * @enum {string}
+	 */
+	{
+	  /**
+	   * Emitted when {@link Hook} execution begins
+	   */
+	  EVENT_HOOK_BEGIN: 'hook',
+
+	  /**
+	   * Emitted when {@link Hook} execution ends
+	   */
+	  EVENT_HOOK_END: 'hook end',
+
+	  /**
+	   * Emitted when Root {@link Suite} execution begins (all files have been parsed and hooks/tests are ready for execution)
+	   */
+	  EVENT_RUN_BEGIN: 'start',
+
+	  /**
+	   * Emitted when Root {@link Suite} execution has been delayed via `delay` option
+	   */
+	  EVENT_DELAY_BEGIN: 'waiting',
+
+	  /**
+	   * Emitted when delayed Root {@link Suite} execution is triggered by user via `global.run()`
+	   */
+	  EVENT_DELAY_END: 'ready',
+
+	  /**
+	   * Emitted when Root {@link Suite} execution ends
+	   */
+	  EVENT_RUN_END: 'end',
+
+	  /**
+	   * Emitted when {@link Suite} execution begins
+	   */
+	  EVENT_SUITE_BEGIN: 'suite',
+
+	  /**
+	   * Emitted when {@link Suite} execution ends
+	   */
+	  EVENT_SUITE_END: 'suite end',
+
+	  /**
+	   * Emitted when {@link Test} execution begins
+	   */
+	  EVENT_TEST_BEGIN: 'test',
+
+	  /**
+	   * Emitted when {@link Test} execution ends
+	   */
+	  EVENT_TEST_END: 'test end',
+
+	  /**
+	   * Emitted when {@link Test} execution fails
+	   */
+	  EVENT_TEST_FAIL: 'fail',
+
+	  /**
+	   * Emitted when {@link Test} execution succeeds
+	   */
+	  EVENT_TEST_PASS: 'pass',
+
+	  /**
+	   * Emitted when {@link Test} becomes pending
+	   */
+	  EVENT_TEST_PENDING: 'pending',
+
+	  /**
+	   * Emitted when {@link Test} execution has failed, but will retry
+	   */
+	  EVENT_TEST_RETRY: 'retry',
+
+	  /**
+	   * Initial state of Runner
+	   */
+	  STATE_IDLE: 'idle',
+
+	  /**
+	   * State set to this value when the Runner has started running
+	   */
+	  STATE_RUNNING: 'running',
+
+	  /**
+	   * State set to this value when the Runner has stopped
+	   */
+	  STATE_STOPPED: 'stopped'
+	});
+
+	var Runner = /*#__PURE__*/function (_EventEmitter) {
+	  _inherits(Runner, _EventEmitter);
+
+	  var _super = _createSuper(Runner);
+
+	  /**
+	   * Initialize a `Runner` at the Root {@link Suite}, which represents a hierarchy of {@link Suite|Suites} and {@link Test|Tests}.
+	   *
+	   * @extends external:EventEmitter
+	   * @public
+	   * @class
+	   * @param {Suite} suite - Root suite
+	   * @param {Object|boolean} [opts] - Options. If `boolean` (deprecated), whether to delay execution of root suite until ready.
+	   * @param {boolean} [opts.cleanReferencesAfterRun] - Whether to clean references to test fns and hooks when a suite is done.
+	   * @param {boolean} [opts.delay] - Whether to delay execution of root suite until ready.
+	   * @param {boolean} [opts.dryRun] - Whether to report tests without running them.
+	   * @param {boolean} [options.failZero] - Whether to fail test run if zero tests encountered.
+	   */
+	  function Runner(suite, opts) {
+	    var _this;
+
+	    _classCallCheck(this, Runner);
+
+	    _this = _super.call(this);
+
+	    if (opts === undefined) {
+	      opts = {};
+	    }
+
+	    if (typeof opts === 'boolean') {
+	      // TODO: remove this
+	      errors.deprecate('"Runner(suite: Suite, delay: boolean)" is deprecated. Use "Runner(suite: Suite, {delay: boolean})" instead.');
+	      _this._delay = opts;
+	      opts = {};
+	    } else {
+	      _this._delay = opts.delay;
+	    }
+
+	    var self = _assertThisInitialized(_this);
+
+	    _this._globals = [];
+	    _this._abort = false;
+	    _this.suite = suite;
+	    _this._opts = opts;
+	    _this.state = constants$1.STATE_IDLE;
+	    _this.total = suite.total();
+	    _this.failures = 0;
+	    /**
+	     * @type {Map<EventEmitter,Map<string,Set<EventListener>>>}
+	     */
+
+	    _this._eventListeners = new Map();
+
+	    _this.on(constants$1.EVENT_TEST_END, function (test) {
+	      if (test.type === 'test' && test.retriedTest() && test.parent) {
+	        var idx = test.parent.tests && test.parent.tests.indexOf(test.retriedTest());
+	        if (idx > -1) test.parent.tests[idx] = test;
+	      }
+
+	      self.checkGlobals(test);
+	    });
+
+	    _this.on(constants$1.EVENT_HOOK_END, function (hook) {
+	      self.checkGlobals(hook);
+	    });
+
+	    _this._defaultGrep = /.*/;
+
+	    _this.grep(_this._defaultGrep);
+
+	    _this.globals(_this.globalProps());
+
+	    _this.uncaught = _this._uncaught.bind(_assertThisInitialized(_this));
+
+	    _this.unhandled = function (reason, promise) {
+	      if (isMochaError(reason)) {
+	        debug('trapped unhandled rejection coming out of Mocha; forwarding to uncaught handler:', reason);
+
+	        _this.uncaught(reason);
+	      } else {
+	        debug('trapped unhandled rejection from (probably) user code; re-emitting on process');
+
+	        _this._removeEventListener(process$4, 'unhandledRejection', _this.unhandled);
+
+	        try {
+	          process$4.emit('unhandledRejection', reason, promise);
+	        } finally {
+	          _this._addEventListener(process$4, 'unhandledRejection', _this.unhandled);
+	        }
+	      }
+	    };
+
+	    return _this;
+	  }
+
+	  return Runner;
+	}(EventEmitter);
+	/**
+	 * Wrapper for setImmediate, process.nextTick, or browser polyfill.
+	 *
+	 * @param {Function} fn
+	 * @private
+	 */
+
+
+	Runner.immediately = commonjsGlobal.setImmediate || nextTick$1;
+	/**
+	 * Replacement for `target.on(eventName, listener)` that does bookkeeping to remove them when this runner instance is disposed.
+	 * @param {EventEmitter} target - The `EventEmitter`
+	 * @param {string} eventName - The event name
+	 * @param {string} fn - Listener function
+	 * @private
+	 */
+
+	Runner.prototype._addEventListener = function (target, eventName, listener) {
+	  debug('_addEventListener(): adding for event %s; %d current listeners', eventName, target.listenerCount(eventName));
+	  /* istanbul ignore next */
+
+	  if (this._eventListeners.has(target) && this._eventListeners.get(target).has(eventName) && this._eventListeners.get(target).get(eventName).has(listener)) {
+	    debug('warning: tried to attach duplicate event listener for %s', eventName);
+	    return;
+	  }
+
+	  target.on(eventName, listener);
+	  var targetListeners = this._eventListeners.has(target) ? this._eventListeners.get(target) : new Map();
+	  var targetEventListeners = targetListeners.has(eventName) ? targetListeners.get(eventName) : new Set();
+	  targetEventListeners.add(listener);
+	  targetListeners.set(eventName, targetEventListeners);
+
+	  this._eventListeners.set(target, targetListeners);
+	};
+	/**
+	 * Replacement for `target.removeListener(eventName, listener)` that also updates the bookkeeping.
+	 * @param {EventEmitter} target - The `EventEmitter`
+	 * @param {string} eventName - The event name
+	 * @param {function} listener - Listener function
+	 * @private
+	 */
+
+
+	Runner.prototype._removeEventListener = function (target, eventName, listener) {
+	  target.removeListener(eventName, listener);
+
+	  if (this._eventListeners.has(target)) {
+	    var targetListeners = this._eventListeners.get(target);
+
+	    if (targetListeners.has(eventName)) {
+	      var targetEventListeners = targetListeners.get(eventName);
+	      targetEventListeners["delete"](listener);
+
+	      if (!targetEventListeners.size) {
+	        targetListeners["delete"](eventName);
+	      }
+	    }
+
+	    if (!targetListeners.size) {
+	      this._eventListeners["delete"](target);
+	    }
+	  } else {
+	    debug('trying to remove listener for untracked object %s', target);
+	  }
+	};
+	/**
+	 * Removes all event handlers set during a run on this instance.
+	 * Remark: this does _not_ clean/dispose the tests or suites themselves.
+	 */
+
+
+	Runner.prototype.dispose = function () {
+	  this.removeAllListeners();
+
+	  this._eventListeners.forEach(function (targetListeners, target) {
+	    targetListeners.forEach(function (targetEventListeners, eventName) {
+	      targetEventListeners.forEach(function (listener) {
+	        target.removeListener(eventName, listener);
+	      });
+	    });
+	  });
+
+	  this._eventListeners.clear();
+	};
+	/**
+	 * Run tests with full titles matching `re`. Updates runner.total
+	 * with number of tests matched.
+	 *
+	 * @public
+	 * @memberof Runner
+	 * @param {RegExp} re
+	 * @param {boolean} invert
+	 * @return {Runner} Runner instance.
+	 */
+
+
+	Runner.prototype.grep = function (re, invert) {
+	  debug('grep(): setting to %s', re);
+	  this._grep = re;
+	  this._invert = invert;
+	  this.total = this.grepTotal(this.suite);
+	  return this;
+	};
+	/**
+	 * Returns the number of tests matching the grep search for the
+	 * given suite.
+	 *
+	 * @memberof Runner
+	 * @public
+	 * @param {Suite} suite
+	 * @return {number}
+	 */
+
+
+	Runner.prototype.grepTotal = function (suite) {
+	  var self = this;
+	  var total = 0;
+	  suite.eachTest(function (test) {
+	    var match = self._grep.test(test.fullTitle());
+
+	    if (self._invert) {
+	      match = !match;
+	    }
+
+	    if (match) {
+	      total++;
+	    }
+	  });
+	  return total;
+	};
+	/**
+	 * Return a list of global properties.
+	 *
+	 * @return {Array}
+	 * @private
+	 */
+
+
+	Runner.prototype.globalProps = function () {
+	  var props = Object.keys(commonjsGlobal); // non-enumerables
+
+	  for (var i = 0; i < globals.length; ++i) {
+	    if (~props.indexOf(globals[i])) {
+	      continue;
+	    }
+
+	    props.push(globals[i]);
+	  }
+
+	  return props;
+	};
+	/**
+	 * Allow the given `arr` of globals.
+	 *
+	 * @public
+	 * @memberof Runner
+	 * @param {Array} arr
+	 * @return {Runner} Runner instance.
+	 */
+
+
+	Runner.prototype.globals = function (arr) {
+	  if (!arguments.length) {
+	    return this._globals;
+	  }
+
+	  debug('globals(): setting to %O', arr);
+	  this._globals = this._globals.concat(arr);
+	  return this;
+	};
+	/**
+	 * Check for global variable leaks.
+	 *
+	 * @private
+	 */
+
+
+	Runner.prototype.checkGlobals = function (test) {
+	  if (!this.checkLeaks) {
+	    return;
+	  }
+
+	  var ok = this._globals;
+	  var globals = this.globalProps();
+	  var leaks;
+
+	  if (test) {
+	    ok = ok.concat(test._allowedGlobals || []);
+	  }
+
+	  if (this.prevGlobalsLength === globals.length) {
+	    return;
+	  }
+
+	  this.prevGlobalsLength = globals.length;
+	  leaks = filterLeaks(ok, globals);
+	  this._globals = this._globals.concat(leaks);
+
+	  if (leaks.length) {
+	    var msg = "global leak(s) detected: ".concat(leaks.map(function (e) {
+	      return "'".concat(e, "'");
+	    }).join(', '));
+	    this.fail(test, new Error(msg));
+	  }
+	};
+	/**
+	 * Fail the given `test`.
+	 *
+	 * If `test` is a hook, failures work in the following pattern:
+	 * - If bail, run corresponding `after each` and `after` hooks,
+	 *   then exit
+	 * - Failed `before` hook skips all tests in a suite and subsuites,
+	 *   but jumps to corresponding `after` hook
+	 * - Failed `before each` hook skips remaining tests in a
+	 *   suite and jumps to corresponding `after each` hook,
+	 *   which is run only once
+	 * - Failed `after` hook does not alter execution order
+	 * - Failed `after each` hook skips remaining tests in a
+	 *   suite and subsuites, but executes other `after each`
+	 *   hooks
+	 *
+	 * @private
+	 * @param {Runnable} test
+	 * @param {Error} err
+	 * @param {boolean} [force=false] - Whether to fail a pending test.
+	 */
+
+
+	Runner.prototype.fail = function (test, err, force) {
+	  force = force === true;
+
+	  if (test.isPending() && !force) {
+	    return;
+	  }
+
+	  if (this.state === constants$1.STATE_STOPPED) {
+	    if (err.code === errorConstants.MULTIPLE_DONE) {
+	      throw err;
+	    }
+
+	    throw createFatalError('Test failed after root suite execution completed!', err);
+	  }
+
+	  ++this.failures;
+	  debug('total number of failures: %d', this.failures);
+	  test.state = STATE_FAILED;
+
+	  if (!isError(err)) {
+	    err = thrown2Error(err);
+	  }
+
+	  try {
+	    err.stack = this.fullStackTrace || !err.stack ? err.stack : stackFilter(err.stack);
+	  } catch (ignore) {// some environments do not take kindly to monkeying with the stack
+	  }
+
+	  this.emit(constants$1.EVENT_TEST_FAIL, test, err);
+	};
+	/**
+	 * Run hook `name` callbacks and then invoke `fn()`.
+	 *
+	 * @private
+	 * @param {string} name
+	 * @param {Function} fn
+	 */
+
+
+	Runner.prototype.hook = function (name, fn) {
+	  if (this._opts.dryRun) return fn();
+	  var suite = this.suite;
+	  var hooks = suite.getHooks(name);
+	  var self = this;
+
+	  function next(i) {
+	    var hook = hooks[i];
+
+	    if (!hook) {
+	      return fn();
+	    }
+
+	    self.currentRunnable = hook;
+
+	    if (name === HOOK_TYPE_BEFORE_ALL) {
+	      hook.ctx.currentTest = hook.parent.tests[0];
+	    } else if (name === HOOK_TYPE_AFTER_ALL) {
+	      hook.ctx.currentTest = hook.parent.tests[hook.parent.tests.length - 1];
+	    } else {
+	      hook.ctx.currentTest = self.test;
+	    }
+
+	    setHookTitle(hook);
+	    hook.allowUncaught = self.allowUncaught;
+	    self.emit(constants$1.EVENT_HOOK_BEGIN, hook);
+
+	    if (!hook.listeners('error').length) {
+	      self._addEventListener(hook, 'error', function (err) {
+	        self.fail(hook, err);
+	      });
+	    }
+
+	    hook.run(function cbHookRun(err) {
+	      var testError = hook.error();
+
+	      if (testError) {
+	        self.fail(self.test, testError);
+	      } // conditional skip
+
+
+	      if (hook.pending) {
+	        if (name === HOOK_TYPE_AFTER_EACH) {
+	          // TODO define and implement use case
+	          if (self.test) {
+	            self.test.pending = true;
+	          }
+	        } else if (name === HOOK_TYPE_BEFORE_EACH) {
+	          if (self.test) {
+	            self.test.pending = true;
+	          }
+
+	          self.emit(constants$1.EVENT_HOOK_END, hook);
+	          hook.pending = false; // activates hook for next test
+
+	          return fn(new Error('abort hookDown'));
+	        } else if (name === HOOK_TYPE_BEFORE_ALL) {
+	          suite.tests.forEach(function (test) {
+	            test.pending = true;
+	          });
+	          suite.suites.forEach(function (suite) {
+	            suite.pending = true;
+	          });
+	          hooks = [];
+	        } else {
+	          hook.pending = false;
+	          var errForbid = createUnsupportedError$1('`this.skip` forbidden');
+	          self.fail(hook, errForbid);
+	          return fn(errForbid);
+	        }
+	      } else if (err) {
+	        self.fail(hook, err); // stop executing hooks, notify callee of hook err
+
+	        return fn(err);
+	      }
+
+	      self.emit(constants$1.EVENT_HOOK_END, hook);
+	      delete hook.ctx.currentTest;
+	      setHookTitle(hook);
+	      next(++i);
+	    });
+
+	    function setHookTitle(hook) {
+	      hook.originalTitle = hook.originalTitle || hook.title;
+
+	      if (hook.ctx && hook.ctx.currentTest) {
+	        hook.title = "".concat(hook.originalTitle, " for \"").concat(hook.ctx.currentTest.title, "\"");
+	      } else {
+	        var parentTitle;
+
+	        if (hook.parent.title) {
+	          parentTitle = hook.parent.title;
+	        } else {
+	          parentTitle = hook.parent.root ? '{root}' : '';
+	        }
+
+	        hook.title = "".concat(hook.originalTitle, " in \"").concat(parentTitle, "\"");
+	      }
+	    }
+	  }
+
+	  Runner.immediately(function () {
+	    next(0);
+	  });
+	};
+	/**
+	 * Run hook `name` for the given array of `suites`
+	 * in order, and callback `fn(err, errSuite)`.
+	 *
+	 * @private
+	 * @param {string} name
+	 * @param {Array} suites
+	 * @param {Function} fn
+	 */
+
+
+	Runner.prototype.hooks = function (name, suites, fn) {
+	  var self = this;
+	  var orig = this.suite;
+
+	  function next(suite) {
+	    self.suite = suite;
+
+	    if (!suite) {
+	      self.suite = orig;
+	      return fn();
+	    }
+
+	    self.hook(name, function (err) {
+	      if (err) {
+	        var errSuite = self.suite;
+	        self.suite = orig;
+	        return fn(err, errSuite);
+	      }
+
+	      next(suites.pop());
+	    });
+	  }
+
+	  next(suites.pop());
+	};
+	/**
+	 * Run 'afterEach' hooks from bottom up.
+	 *
+	 * @param {String} name
+	 * @param {Function} fn
+	 * @private
+	 */
+
+
+	Runner.prototype.hookUp = function (name, fn) {
+	  var suites = [this.suite].concat(this.parents()).reverse();
+	  this.hooks(name, suites, fn);
+	};
+	/**
+	 * Run 'beforeEach' hooks from top level down.
+	 *
+	 * @param {String} name
+	 * @param {Function} fn
+	 * @private
+	 */
+
+
+	Runner.prototype.hookDown = function (name, fn) {
+	  var suites = [this.suite].concat(this.parents());
+	  this.hooks(name, suites, fn);
+	};
+	/**
+	 * Return an array of parent Suites from
+	 * closest to furthest.
+	 *
+	 * @return {Array}
+	 * @private
+	 */
+
+
+	Runner.prototype.parents = function () {
+	  var suite = this.suite;
+	  var suites = [];
+
+	  while (suite.parent) {
+	    suite = suite.parent;
+	    suites.push(suite);
+	  }
+
+	  return suites;
+	};
+	/**
+	 * Run the current test and callback `fn(err)`.
+	 *
+	 * @param {Function} fn
+	 * @private
+	 */
+
+
+	Runner.prototype.runTest = function (fn) {
+	  if (this._opts.dryRun) return fn();
+	  var self = this;
+	  var test = this.test;
+
+	  if (!test) {
+	    return;
+	  }
+
+	  if (this.asyncOnly) {
+	    test.asyncOnly = true;
+	  }
+
+	  this._addEventListener(test, 'error', function (err) {
+	    self.fail(test, err);
+	  });
+
+	  if (this.allowUncaught) {
+	    test.allowUncaught = true;
+	    return test.run(fn);
+	  }
+
+	  try {
+	    test.run(fn);
+	  } catch (err) {
+	    fn(err);
+	  }
+	};
+	/**
+	 * Run tests in the given `suite` and invoke the callback `fn()` when complete.
+	 *
+	 * @private
+	 * @param {Suite} suite
+	 * @param {Function} fn
+	 */
+
+
+	Runner.prototype.runTests = function (suite, fn) {
+	  var self = this;
+	  var tests = suite.tests.slice();
+	  var test;
+
+	  function hookErr(_, errSuite, after) {
+	    // before/after Each hook for errSuite failed:
+	    var orig = self.suite; // for failed 'after each' hook start from errSuite parent,
+	    // otherwise start from errSuite itself
+
+	    self.suite = after ? errSuite.parent : errSuite;
+
+	    if (self.suite) {
+	      self.hookUp(HOOK_TYPE_AFTER_EACH, function (err2, errSuite2) {
+	        self.suite = orig; // some hooks may fail even now
+
+	        if (err2) {
+	          return hookErr(err2, errSuite2, true);
+	        } // report error suite
+
+
+	        fn(errSuite);
+	      });
+	    } else {
+	      // there is no need calling other 'after each' hooks
+	      self.suite = orig;
+	      fn(errSuite);
+	    }
+	  }
+
+	  function next(err, errSuite) {
+	    // if we bail after first err
+	    if (self.failures && suite._bail) {
+	      tests = [];
+	    }
+
+	    if (self._abort) {
+	      return fn();
+	    }
+
+	    if (err) {
+	      return hookErr(err, errSuite, true);
+	    } // next test
+
+
+	    test = tests.shift(); // all done
+
+	    if (!test) {
+	      return fn();
+	    } // grep
+
+
+	    var match = self._grep.test(test.fullTitle());
+
+	    if (self._invert) {
+	      match = !match;
+	    }
+
+	    if (!match) {
+	      // Run immediately only if we have defined a grep. When we
+	      // define a grep — It can cause maximum callstack error if
+	      // the grep is doing a large recursive loop by neglecting
+	      // all tests. The run immediately function also comes with
+	      // a performance cost. So we don't want to run immediately
+	      // if we run the whole test suite, because running the whole
+	      // test suite don't do any immediate recursive loops. Thus,
+	      // allowing a JS runtime to breathe.
+	      if (self._grep !== self._defaultGrep) {
+	        Runner.immediately(next);
+	      } else {
+	        next();
+	      }
+
+	      return;
+	    } // static skip, no hooks are executed
+
+
+	    if (test.isPending()) {
+	      if (self.forbidPending) {
+	        self.fail(test, new Error('Pending test forbidden'), true);
+	      } else {
+	        test.state = STATE_PENDING;
+	        self.emit(constants$1.EVENT_TEST_PENDING, test);
+	      }
+
+	      self.emit(constants$1.EVENT_TEST_END, test);
+	      return next();
+	    } // execute test and hook(s)
+
+
+	    self.emit(constants$1.EVENT_TEST_BEGIN, self.test = test);
+	    self.hookDown(HOOK_TYPE_BEFORE_EACH, function (err, errSuite) {
+	      // conditional skip within beforeEach
+	      if (test.isPending()) {
+	        if (self.forbidPending) {
+	          self.fail(test, new Error('Pending test forbidden'), true);
+	        } else {
+	          test.state = STATE_PENDING;
+	          self.emit(constants$1.EVENT_TEST_PENDING, test);
+	        }
+
+	        self.emit(constants$1.EVENT_TEST_END, test); // skip inner afterEach hooks below errSuite level
+
+	        var origSuite = self.suite;
+	        self.suite = errSuite || self.suite;
+	        return self.hookUp(HOOK_TYPE_AFTER_EACH, function (e, eSuite) {
+	          self.suite = origSuite;
+	          next(e, eSuite);
+	        });
+	      }
+
+	      if (err) {
+	        return hookErr(err, errSuite, false);
+	      }
+
+	      self.currentRunnable = self.test;
+	      self.runTest(function (err) {
+	        test = self.test; // conditional skip within it
+
+	        if (test.pending) {
+	          if (self.forbidPending) {
+	            self.fail(test, new Error('Pending test forbidden'), true);
+	          } else {
+	            test.state = STATE_PENDING;
+	            self.emit(constants$1.EVENT_TEST_PENDING, test);
+	          }
+
+	          self.emit(constants$1.EVENT_TEST_END, test);
+	          return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
+	        } else if (err) {
+	          var retry = test.currentRetry();
+
+	          if (retry < test.retries()) {
+	            var clonedTest = test.clone();
+	            clonedTest.currentRetry(retry + 1);
+	            tests.unshift(clonedTest);
+	            self.emit(constants$1.EVENT_TEST_RETRY, test, err); // Early return + hook trigger so that it doesn't
+	            // increment the count wrong
+
+	            return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
+	          } else {
+	            self.fail(test, err);
+	          }
+
+	          self.emit(constants$1.EVENT_TEST_END, test);
+	          return self.hookUp(HOOK_TYPE_AFTER_EACH, next);
+	        }
+
+	        test.state = STATE_PASSED;
+	        self.emit(constants$1.EVENT_TEST_PASS, test);
+	        self.emit(constants$1.EVENT_TEST_END, test);
+	        self.hookUp(HOOK_TYPE_AFTER_EACH, next);
+	      });
+	    });
+	  }
+
+	  this.next = next;
+	  this.hookErr = hookErr;
+	  next();
+	};
+	/**
+	 * Run the given `suite` and invoke the callback `fn()` when complete.
+	 *
+	 * @private
+	 * @param {Suite} suite
+	 * @param {Function} fn
+	 */
+
+
+	Runner.prototype.runSuite = function (suite, fn) {
+	  var i = 0;
+	  var self = this;
+	  var total = this.grepTotal(suite);
+	  debug('runSuite(): running %s', suite.fullTitle());
+
+	  if (!total || self.failures && suite._bail) {
+	    debug('runSuite(): bailing');
+	    return fn();
+	  }
+
+	  this.emit(constants$1.EVENT_SUITE_BEGIN, this.suite = suite);
+
+	  function next(errSuite) {
+	    if (errSuite) {
+	      // current suite failed on a hook from errSuite
+	      if (errSuite === suite) {
+	        // if errSuite is current suite
+	        // continue to the next sibling suite
+	        return done();
+	      } // errSuite is among the parents of current suite
+	      // stop execution of errSuite and all sub-suites
+
+
+	      return done(errSuite);
+	    }
+
+	    if (self._abort) {
+	      return done();
+	    }
+
+	    var curr = suite.suites[i++];
+
+	    if (!curr) {
+	      return done();
+	    } // Avoid grep neglecting large number of tests causing a
+	    // huge recursive loop and thus a maximum call stack error.
+	    // See comment in `this.runTests()` for more information.
+
+
+	    if (self._grep !== self._defaultGrep) {
+	      Runner.immediately(function () {
+	        self.runSuite(curr, next);
+	      });
+	    } else {
+	      self.runSuite(curr, next);
+	    }
+	  }
+
+	  function done(errSuite) {
+	    self.suite = suite;
+	    self.nextSuite = next; // remove reference to test
+
+	    delete self.test;
+	    self.hook(HOOK_TYPE_AFTER_ALL, function () {
+	      self.emit(constants$1.EVENT_SUITE_END, suite);
+	      fn(errSuite);
+	    });
+	  }
+
+	  this.nextSuite = next;
+	  this.hook(HOOK_TYPE_BEFORE_ALL, function (err) {
+	    if (err) {
+	      return done();
+	    }
+
+	    self.runTests(suite, next);
+	  });
+	};
+	/**
+	 * Handle uncaught exceptions within runner.
+	 *
+	 * This function is bound to the instance as `Runner#uncaught` at instantiation
+	 * time. It's intended to be listening on the `Process.uncaughtException` event.
+	 * In order to not leak EE listeners, we need to ensure no more than a single
+	 * `uncaughtException` listener exists per `Runner`.  The only way to do
+	 * this--because this function needs the context (and we don't have lambdas)--is
+	 * to use `Function.prototype.bind`. We need strict equality to unregister and
+	 * _only_ unregister the _one_ listener we set from the
+	 * `Process.uncaughtException` event; would be poor form to just remove
+	 * everything. See {@link Runner#run} for where the event listener is registered
+	 * and unregistered.
+	 * @param {Error} err - Some uncaught error
+	 * @private
+	 */
+
+
+	Runner.prototype._uncaught = function (err) {
+	  // this is defensive to prevent future developers from mis-calling this function.
+	  // it's more likely that it'd be called with the incorrect context--say, the global
+	  // `process` object--than it would to be called with a context that is not a "subclass"
+	  // of `Runner`.
+	  if (!(this instanceof Runner)) {
+	    throw createFatalError('Runner#uncaught() called with invalid context', this);
+	  }
+
+	  if (err instanceof pending) {
+	    debug('uncaught(): caught a Pending');
+	    return;
+	  } // browser does not exit script when throwing in global.onerror()
+
+
+	  if (this.allowUncaught && !utils.isBrowser()) {
+	    debug('uncaught(): bubbling exception due to --allow-uncaught');
+	    throw err;
+	  }
+
+	  if (this.state === constants$1.STATE_STOPPED) {
+	    debug('uncaught(): throwing after run has completed!');
+	    throw err;
+	  }
+
+	  if (err) {
+	    debug('uncaught(): got truthy exception %O', err);
+	  } else {
+	    debug('uncaught(): undefined/falsy exception');
+	    err = createInvalidExceptionError('Caught falsy/undefined exception which would otherwise be uncaught. No stack trace found; try a debugger', err);
+	  }
+
+	  if (!isError(err)) {
+	    err = thrown2Error(err);
+	    debug('uncaught(): converted "error" %o to Error', err);
+	  }
+
+	  err.uncaught = true;
+	  var runnable$1 = this.currentRunnable;
+
+	  if (!runnable$1) {
+	    runnable$1 = new runnable('Uncaught error outside test suite');
+	    debug('uncaught(): no current Runnable; created a phony one');
+	    runnable$1.parent = this.suite;
+
+	    if (this.state === constants$1.STATE_RUNNING) {
+	      debug('uncaught(): failing gracefully');
+	      this.fail(runnable$1, err);
+	    } else {
+	      // Can't recover from this failure
+	      debug('uncaught(): test run has not yet started; unrecoverable');
+	      this.emit(constants$1.EVENT_RUN_BEGIN);
+	      this.fail(runnable$1, err);
+	      this.emit(constants$1.EVENT_RUN_END);
+	    }
+
+	    return;
+	  }
+
+	  runnable$1.clearTimeout();
+
+	  if (runnable$1.isFailed()) {
+	    debug('uncaught(): Runnable has already failed'); // Ignore error if already failed
+
+	    return;
+	  } else if (runnable$1.isPending()) {
+	    debug('uncaught(): pending Runnable wound up failing!'); // report 'pending test' retrospectively as failed
+
+	    this.fail(runnable$1, err, true);
+	    return;
+	  } // we cannot recover gracefully if a Runnable has already passed
+	  // then fails asynchronously
+
+
+	  if (runnable$1.isPassed()) {
+	    debug('uncaught(): Runnable has already passed; bailing gracefully');
+	    this.fail(runnable$1, err);
+	    this.abort();
+	  } else {
+	    debug('uncaught(): forcing Runnable to complete with Error');
+	    return runnable$1.callback(err);
+	  }
+	};
+	/**
+	 * Run the root suite and invoke `fn(failures)`
+	 * on completion.
+	 *
+	 * @public
+	 * @memberof Runner
+	 * @param {Function} fn - Callback when finished
+	 * @param {{files: string[], options: Options}} [opts] - For subclasses
+	 * @returns {Runner} Runner instance.
+	 */
+
+
+	Runner.prototype.run = function (fn) {
+	  var _this2 = this;
+
+	  var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+	  var rootSuite = this.suite;
+	  var options = opts.options || {};
+	  debug('run(): got options: %O', options);
+
+	  fn = fn || function () {};
+
+	  var end = function end() {
+	    if (!_this2.total && _this2._opts.failZero) _this2.failures = 1;
+	    debug('run(): root suite completed; emitting %s', constants$1.EVENT_RUN_END);
+
+	    _this2.emit(constants$1.EVENT_RUN_END);
+	  };
+
+	  var begin = function begin() {
+	    debug('run(): emitting %s', constants$1.EVENT_RUN_BEGIN);
+
+	    _this2.emit(constants$1.EVENT_RUN_BEGIN);
+
+	    debug('run(): emitted %s', constants$1.EVENT_RUN_BEGIN);
+
+	    _this2.runSuite(rootSuite, end);
+	  };
+
+	  var prepare = function prepare() {
+	    debug('run(): starting'); // If there is an `only` filter
+
+	    if (rootSuite.hasOnly()) {
+	      rootSuite.filterOnly();
+	      debug('run(): filtered exclusive Runnables');
+	    }
+
+	    _this2.state = constants$1.STATE_RUNNING;
+
+	    if (_this2._delay) {
+	      _this2.emit(constants$1.EVENT_DELAY_END);
+
+	      debug('run(): "delay" ended');
+	    }
 
-var defineProperties = function (object, map) {
-	var predicates = arguments.length > 2 ? arguments[2] : {};
-	var props = keys(map);
-	if (hasSymbols) {
-		props = concat.call(props, Object.getOwnPropertySymbols(map));
+	    return begin();
+	  }; // references cleanup to avoid memory leaks
+
+
+	  if (this._opts.cleanReferencesAfterRun) {
+	    this.on(constants$1.EVENT_SUITE_END, function (suite) {
+	      suite.cleanReferences();
+	    });
+	  } // callback
+
+
+	  this.on(constants$1.EVENT_RUN_END, function () {
+	    this.state = constants$1.STATE_STOPPED;
+	    debug('run(): emitted %s', constants$1.EVENT_RUN_END);
+	    fn(this.failures);
+	  });
+
+	  this._removeEventListener(process$4, 'uncaughtException', this.uncaught);
+
+	  this._removeEventListener(process$4, 'unhandledRejection', this.unhandled);
+
+	  this._addEventListener(process$4, 'uncaughtException', this.uncaught);
+
+	  this._addEventListener(process$4, 'unhandledRejection', this.unhandled);
+
+	  if (this._delay) {
+	    // for reporters, I guess.
+	    // might be nice to debounce some dots while we wait.
+	    this.emit(constants$1.EVENT_DELAY_BEGIN, rootSuite);
+	    rootSuite.once(EVENT_ROOT_SUITE_RUN, prepare);
+	    debug('run(): waiting for green light due to --delay');
+	  } else {
+	    Runner.immediately(prepare);
+	  }
+
+	  return this;
+	};
+	/**
+	 * Toggle partial object linking behavior; used for building object references from
+	 * unique ID's. Does nothing in serial mode, because the object references already exist.
+	 * Subclasses can implement this (e.g., `ParallelBufferedRunner`)
+	 * @abstract
+	 * @param {boolean} [value] - If `true`, enable partial object linking, otherwise disable
+	 * @returns {Runner}
+	 * @chainable
+	 * @public
+	 * @example
+	 * // this reporter needs proper object references when run in parallel mode
+	 * class MyReporter() {
+	 *   constructor(runner) {
+	 *     this.runner.linkPartialObjects(true)
+	 *       .on(EVENT_SUITE_BEGIN, suite => {
+	           // this Suite may be the same object...
+	 *       })
+	 *       .on(EVENT_TEST_BEGIN, test => {
+	 *         // ...as the `test.parent` property
+	 *       });
+	 *   }
+	 * }
+	 */
+
+
+	Runner.prototype.linkPartialObjects = function (value) {
+	  return this;
+	};
+	/*
+	 * Like {@link Runner#run}, but does not accept a callback and returns a `Promise` instead of a `Runner`.
+	 * This function cannot reject; an `unhandledRejection` event will bubble up to the `process` object instead.
+	 * @public
+	 * @memberof Runner
+	 * @param {Object} [opts] - Options for {@link Runner#run}
+	 * @returns {Promise<number>} Failure count
+	 */
+
+
+	Runner.prototype.runAsync = /*#__PURE__*/function () {
+	  var _runAsync = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {
+	    var _this3 = this;
+
+	    var opts,
+	        _args = arguments;
+	    return regeneratorRuntime.wrap(function _callee$(_context) {
+	      while (1) {
+	        switch (_context.prev = _context.next) {
+	          case 0:
+	            opts = _args.length > 0 && _args[0] !== undefined ? _args[0] : {};
+	            return _context.abrupt("return", new Promise(function (resolve) {
+	              _this3.run(resolve, opts);
+	            }));
+
+	          case 2:
+	          case "end":
+	            return _context.stop();
+	        }
+	      }
+	    }, _callee);
+	  }));
+
+	  function runAsync() {
+	    return _runAsync.apply(this, arguments);
+	  }
+
+	  return runAsync;
+	}();
+	/**
+	 * Cleanly abort execution.
+	 *
+	 * @memberof Runner
+	 * @public
+	 * @return {Runner} Runner instance.
+	 */
+
+
+	Runner.prototype.abort = function () {
+	  debug('abort(): aborting');
+	  this._abort = true;
+	  return this;
+	};
+	/**
+	 * Returns `true` if Mocha is running in parallel mode.  For reporters.
+	 *
+	 * Subclasses should return an appropriate value.
+	 * @public
+	 * @returns {false}
+	 */
+
+
+	Runner.prototype.isParallelMode = function isParallelMode() {
+	  return false;
+	};
+	/**
+	 * Configures an alternate reporter for worker processes to use. Subclasses
+	 * using worker processes should implement this.
+	 * @public
+	 * @param {string} path - Absolute path to alternate reporter for worker processes to use
+	 * @returns {Runner}
+	 * @throws When in serial mode
+	 * @chainable
+	 * @abstract
+	 */
+
+
+	Runner.prototype.workerReporter = function () {
+	  throw createUnsupportedError$1('workerReporter() not supported in serial mode');
+	};
+	/**
+	 * Filter leaks with the given globals flagged as `ok`.
+	 *
+	 * @private
+	 * @param {Array} ok
+	 * @param {Array} globals
+	 * @return {Array}
+	 */
+
+
+	function filterLeaks(ok, globals) {
+	  return globals.filter(function (key) {
+	    // Firefox and Chrome exposes iframes as index inside the window object
+	    if (/^\d+/.test(key)) {
+	      return false;
+	    } // in firefox
+	    // if runner runs in an iframe, this iframe's window.getInterface method
+	    // not init at first it is assigned in some seconds
+
+
+	    if (commonjsGlobal.navigator && /^getInterface/.test(key)) {
+	      return false;
+	    } // an iframe could be approached by window[iframeIndex]
+	    // in ie6,7,8 and opera, iframeIndex is enumerable, this could cause leak
+
+
+	    if (commonjsGlobal.navigator && /^\d+/.test(key)) {
+	      return false;
+	    } // Opera and IE expose global variables for HTML element IDs (issue #243)
+
+
+	    if (/^mocha-/.test(key)) {
+	      return false;
+	    }
+
+	    var matched = ok.filter(function (ok) {
+	      if (~ok.indexOf('*')) {
+	        return key.indexOf(ok.split('*')[0]) === 0;
+	      }
+
+	      return key === ok;
+	    });
+	    return !matched.length && (!commonjsGlobal.navigator || key !== 'onerror');
+	  });
+	}
+	/**
+	 * Check if argument is an instance of Error object or a duck-typed equivalent.
+	 *
+	 * @private
+	 * @param {Object} err - object to check
+	 * @param {string} err.message - error message
+	 * @returns {boolean}
+	 */
+
+
+	function isError(err) {
+	  return err instanceof Error || err && typeof err.message === 'string';
 	}
-	for (var i = 0; i < props.length; i += 1) {
-		defineProperty(object, props[i], map[props[i]], predicates[props[i]]);
+	/**
+	 *
+	 * Converts thrown non-extensible type into proper Error.
+	 *
+	 * @private
+	 * @param {*} thrown - Non-extensible type thrown by code
+	 * @return {Error}
+	 */
+
+
+	function thrown2Error(err) {
+	  return new Error("the ".concat(utils.canonicalType(err), " ").concat(stringify(err), " was thrown, throw an Error :)"));
 	}
-};
 
-defineProperties.supportsDescriptors = !!supportsDescriptors;
+	Runner.constants = constants$1;
+	/**
+	 * Node.js' `EventEmitter`
+	 * @external EventEmitter
+	 * @see {@link https://nodejs.org/api/events.html#events_class_eventemitter}
+	 */
+
+	var runner = Runner;
+
+	var require$$10 = getCjsExportFromNamespace(_nodeResolve_empty$1);
+
+	var base = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Base
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var isBrowser = utils.isBrowser();
+
+	  function getBrowserWindowSize() {
+	    if ('innerHeight' in commonjsGlobal) {
+	      return [commonjsGlobal.innerHeight, commonjsGlobal.innerWidth];
+	    } // In a Web Worker, the DOM Window is not available.
+
+
+	    return [640, 480];
+	  }
+	  /**
+	   * Expose `Base`.
+	   */
+
+
+	  exports = module.exports = Base;
+	  /**
+	   * Check if both stdio streams are associated with a tty.
+	   */
+
+	  var isatty = isBrowser || process$4.stdout.isTTY && process$4.stderr.isTTY;
+	  /**
+	   * Save log references to avoid tests interfering (see GH-3604).
+	   */
+
+	  var consoleLog = console.log;
+	  /**
+	   * Enable coloring by default, except in the browser interface.
+	   */
+
+	  exports.useColors = !isBrowser && (require$$10.stdout || process$4.env.MOCHA_COLORS !== undefined);
+	  /**
+	   * Inline diffs instead of +/-
+	   */
+
+	  exports.inlineDiffs = false;
+	  /**
+	   * Default color map.
+	   */
+
+	  exports.colors = {
+	    pass: 90,
+	    fail: 31,
+	    'bright pass': 92,
+	    'bright fail': 91,
+	    'bright yellow': 93,
+	    pending: 36,
+	    suite: 0,
+	    'error title': 0,
+	    'error message': 31,
+	    'error stack': 90,
+	    checkmark: 32,
+	    fast: 90,
+	    medium: 33,
+	    slow: 31,
+	    green: 32,
+	    light: 90,
+	    'diff gutter': 90,
+	    'diff added': 32,
+	    'diff removed': 31,
+	    'diff added inline': '30;42',
+	    'diff removed inline': '30;41'
+	  };
+	  /**
+	   * Default symbol map.
+	   */
+
+	  exports.symbols = {
+	    ok: browser$1.success,
+	    err: browser$1.error,
+	    dot: '.',
+	    comma: ',',
+	    bang: '!'
+	  };
+	  /**
+	   * Color `str` with the given `type`,
+	   * allowing colors to be disabled,
+	   * as well as user-defined color
+	   * schemes.
+	   *
+	   * @private
+	   * @param {string} type
+	   * @param {string} str
+	   * @return {string}
+	   */
+
+	  var color = exports.color = function (type, str) {
+	    if (!exports.useColors) {
+	      return String(str);
+	    }
+
+	    return "\x1B[" + exports.colors[type] + 'm' + str + "\x1B[0m";
+	  };
+	  /**
+	   * Expose term window size, with some defaults for when stderr is not a tty.
+	   */
+
+
+	  exports.window = {
+	    width: 75
+	  };
+
+	  if (isatty) {
+	    if (isBrowser) {
+	      exports.window.width = getBrowserWindowSize()[1];
+	    } else {
+	      exports.window.width = process$4.stdout.getWindowSize(1)[0];
+	    }
+	  }
+	  /**
+	   * Expose some basic cursor interactions that are common among reporters.
+	   */
+
+
+	  exports.cursor = {
+	    hide: function hide() {
+	      isatty && process$4.stdout.write("\x1B[?25l");
+	    },
+	    show: function show() {
+	      isatty && process$4.stdout.write("\x1B[?25h");
+	    },
+	    deleteLine: function deleteLine() {
+	      isatty && process$4.stdout.write("\x1B[2K");
+	    },
+	    beginningOfLine: function beginningOfLine() {
+	      isatty && process$4.stdout.write("\x1B[0G");
+	    },
+	    CR: function CR() {
+	      if (isatty) {
+	        exports.cursor.deleteLine();
+	        exports.cursor.beginningOfLine();
+	      } else {
+	        process$4.stdout.write('\r');
+	      }
+	    }
+	  };
+
+	  var showDiff = exports.showDiff = function (err) {
+	    return err && err.showDiff !== false && sameType(err.actual, err.expected) && err.expected !== undefined;
+	  };
+
+	  function stringifyDiffObjs(err) {
+	    if (!utils.isString(err.actual) || !utils.isString(err.expected)) {
+	      err.actual = utils.stringify(err.actual);
+	      err.expected = utils.stringify(err.expected);
+	    }
+	  }
+	  /**
+	   * Returns a diff between 2 strings with coloured ANSI output.
+	   *
+	   * @description
+	   * The diff will be either inline or unified dependent on the value
+	   * of `Base.inlineDiff`.
+	   *
+	   * @param {string} actual
+	   * @param {string} expected
+	   * @return {string} Diff
+	   */
+
+
+	  var generateDiff = exports.generateDiff = function (actual, expected) {
+	    try {
+	      var diffSize = 2048;
+
+	      if (actual.length > diffSize) {
+	        actual = actual.substring(0, diffSize) + ' ... Lines skipped';
+	      }
+
+	      if (expected.length > diffSize) {
+	        expected = expected.substring(0, diffSize) + ' ... Lines skipped';
+	      }
+
+	      return exports.inlineDiffs ? inlineDiff(actual, expected) : unifiedDiff(actual, expected);
+	    } catch (err) {
+	      var msg = '\n      ' + color('diff added', '+ expected') + ' ' + color('diff removed', '- actual:  failed to generate Mocha diff') + '\n';
+	      return msg;
+	    }
+	  };
+	  /**
+	   * Outputs the given `failures` as a list.
+	   *
+	   * @public
+	   * @memberof Mocha.reporters.Base
+	   * @variation 1
+	   * @param {Object[]} failures - Each is Test instance with corresponding
+	   *     Error property
+	   */
+
+
+	  exports.list = function (failures) {
+	    var multipleErr, multipleTest;
+	    Base.consoleLog();
+	    failures.forEach(function (test, i) {
+	      // format
+	      var fmt = color('error title', '  %s) %s:\n') + color('error message', '     %s') + color('error stack', '\n%s\n'); // msg
+
+	      var msg;
+	      var err;
+
+	      if (test.err && test.err.multiple) {
+	        if (multipleTest !== test) {
+	          multipleTest = test;
+	          multipleErr = [test.err].concat(test.err.multiple);
+	        }
+
+	        err = multipleErr.shift();
+	      } else {
+	        err = test.err;
+	      }
+
+	      var message;
+
+	      if (typeof err.inspect === 'function') {
+	        message = err.inspect() + '';
+	      } else if (err.message && typeof err.message.toString === 'function') {
+	        message = err.message + '';
+	      } else {
+	        message = '';
+	      }
+
+	      var stack = err.stack || message;
+	      var index = message ? stack.indexOf(message) : -1;
+
+	      if (index === -1) {
+	        msg = message;
+	      } else {
+	        index += message.length;
+	        msg = stack.slice(0, index); // remove msg from stack
+
+	        stack = stack.slice(index + 1);
+	      } // uncaught
+
+
+	      if (err.uncaught) {
+	        msg = 'Uncaught ' + msg;
+	      } // explicitly show diff
+
+
+	      if (!exports.hideDiff && showDiff(err)) {
+	        stringifyDiffObjs(err);
+	        fmt = color('error title', '  %s) %s:\n%s') + color('error stack', '\n%s\n');
+	        var match = message.match(/^([^:]+): expected/);
+	        msg = '\n      ' + color('error message', match ? match[1] : msg);
+	        msg += generateDiff(err.actual, err.expected);
+	      } // indent stack trace
+
+
+	      stack = stack.replace(/^/gm, '  '); // indented test title
+
+	      var testTitle = '';
+	      test.titlePath().forEach(function (str, index) {
+	        if (index !== 0) {
+	          testTitle += '\n     ';
+	        }
+
+	        for (var i = 0; i < index; i++) {
+	          testTitle += '  ';
+	        }
+
+	        testTitle += str;
+	      });
+	      Base.consoleLog(fmt, i + 1, testTitle, msg, stack);
+	    });
+	  };
+	  /**
+	   * Constructs a new `Base` reporter instance.
+	   *
+	   * @description
+	   * All other reporters generally inherit from this reporter.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+
+	  function Base(runner, options) {
+	    var failures = this.failures = [];
+
+	    if (!runner) {
+	      throw new TypeError('Missing runner argument');
+	    }
+
+	    this.options = options || {};
+	    this.runner = runner;
+	    this.stats = runner.stats; // assigned so Reporters keep a closer reference
+
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      if (test.duration > test.slow()) {
+	        test.speed = 'slow';
+	      } else if (test.duration > test.slow() / 2) {
+	        test.speed = 'medium';
+	      } else {
+	        test.speed = 'fast';
+	      }
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test, err) {
+	      if (showDiff(err)) {
+	        stringifyDiffObjs(err);
+	      } // more than one error per test
+
+
+	      if (test.err && err instanceof Error) {
+	        test.err.multiple = (test.err.multiple || []).concat(err);
+	      } else {
+	        test.err = err;
+	      }
+
+	      failures.push(test);
+	    });
+	  }
+	  /**
+	   * Outputs common epilogue used by many of the bundled reporters.
+	   *
+	   * @public
+	   * @memberof Mocha.reporters
+	   */
+
+
+	  Base.prototype.epilogue = function () {
+	    var stats = this.stats;
+	    var fmt;
+	    Base.consoleLog(); // passes
+
+	    fmt = color('bright pass', ' ') + color('green', ' %d passing') + color('light', ' (%s)');
+	    Base.consoleLog(fmt, stats.passes || 0, ms$1(stats.duration)); // pending
+
+	    if (stats.pending) {
+	      fmt = color('pending', ' ') + color('pending', ' %d pending');
+	      Base.consoleLog(fmt, stats.pending);
+	    } // failures
+
+
+	    if (stats.failures) {
+	      fmt = color('fail', '  %d failing');
+	      Base.consoleLog(fmt, stats.failures);
+	      Base.list(this.failures);
+	      Base.consoleLog();
+	    }
+
+	    Base.consoleLog();
+	  };
+	  /**
+	   * Pads the given `str` to `len`.
+	   *
+	   * @private
+	   * @param {string} str
+	   * @param {string} len
+	   * @return {string}
+	   */
+
+
+	  function pad(str, len) {
+	    str = String(str);
+	    return Array(len - str.length + 1).join(' ') + str;
+	  }
+	  /**
+	   * Returns inline diff between 2 strings with coloured ANSI output.
+	   *
+	   * @private
+	   * @param {String} actual
+	   * @param {String} expected
+	   * @return {string} Diff
+	   */
+
+
+	  function inlineDiff(actual, expected) {
+	    var msg = errorDiff(actual, expected); // linenos
+
+	    var lines = msg.split('\n');
+
+	    if (lines.length > 4) {
+	      var width = String(lines.length).length;
+	      msg = lines.map(function (str, i) {
+	        return pad(++i, width) + ' |' + ' ' + str;
+	      }).join('\n');
+	    } // legend
+
+
+	    msg = '\n' + color('diff removed inline', 'actual') + ' ' + color('diff added inline', 'expected') + '\n\n' + msg + '\n'; // indent
+
+	    msg = msg.replace(/^/gm, '      ');
+	    return msg;
+	  }
+	  /**
+	   * Returns unified diff between two strings with coloured ANSI output.
+	   *
+	   * @private
+	   * @param {String} actual
+	   * @param {String} expected
+	   * @return {string} The diff.
+	   */
+
+
+	  function unifiedDiff(actual, expected) {
+	    var indent = '      ';
+
+	    function cleanUp(line) {
+	      if (line[0] === '+') {
+	        return indent + colorLines('diff added', line);
+	      }
+
+	      if (line[0] === '-') {
+	        return indent + colorLines('diff removed', line);
+	      }
+
+	      if (line.match(/@@/)) {
+	        return '--';
+	      }
+
+	      if (line.match(/\\ No newline/)) {
+	        return null;
+	      }
+
+	      return indent + line;
+	    }
+
+	    function notBlank(line) {
+	      return typeof line !== 'undefined' && line !== null;
+	    }
+
+	    var msg = diff$1.createPatch('string', actual, expected);
+	    var lines = msg.split('\n').splice(5);
+	    return '\n      ' + colorLines('diff added', '+ expected') + ' ' + colorLines('diff removed', '- actual') + '\n\n' + lines.map(cleanUp).filter(notBlank).join('\n');
+	  }
+	  /**
+	   * Returns character diff for `err`.
+	   *
+	   * @private
+	   * @param {String} actual
+	   * @param {String} expected
+	   * @return {string} the diff
+	   */
+
+
+	  function errorDiff(actual, expected) {
+	    return diff$1.diffWordsWithSpace(actual, expected).map(function (str) {
+	      if (str.added) {
+	        return colorLines('diff added inline', str.value);
+	      }
+
+	      if (str.removed) {
+	        return colorLines('diff removed inline', str.value);
+	      }
+
+	      return str.value;
+	    }).join('');
+	  }
+	  /**
+	   * Colors lines for `str`, using the color `name`.
+	   *
+	   * @private
+	   * @param {string} name
+	   * @param {string} str
+	   * @return {string}
+	   */
+
+
+	  function colorLines(name, str) {
+	    return str.split('\n').map(function (str) {
+	      return color(name, str);
+	    }).join('\n');
+	  }
+	  /**
+	   * Object#toString reference.
+	   */
+
+
+	  var objToString = Object.prototype.toString;
+	  /**
+	   * Checks that a / b have the same type.
+	   *
+	   * @private
+	   * @param {Object} a
+	   * @param {Object} b
+	   * @return {boolean}
+	   */
+
+	  function sameType(a, b) {
+	    return objToString.call(a) === objToString.call(b);
+	  }
+
+	  Base.consoleLog = consoleLog;
+	  Base["abstract"] = true;
+	});
+
+	var dot = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Dot
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var inherits = utils.inherits;
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  /**
+	   * Expose `Dot`.
+	   */
+
+	  module.exports = Dot;
+	  /**
+	   * Constructs a new `Dot` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Dot(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var width = base.window.width * 0.75 | 0;
+	    var n = -1;
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      process$4.stdout.write('\n');
+	    });
+	    runner.on(EVENT_TEST_PENDING, function () {
+	      if (++n % width === 0) {
+	        process$4.stdout.write('\n  ');
+	      }
+
+	      process$4.stdout.write(base.color('pending', base.symbols.comma));
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      if (++n % width === 0) {
+	        process$4.stdout.write('\n  ');
+	      }
+
+	      if (test.speed === 'slow') {
+	        process$4.stdout.write(base.color('bright yellow', base.symbols.dot));
+	      } else {
+	        process$4.stdout.write(base.color(test.speed, base.symbols.dot));
+	      }
+	    });
+	    runner.on(EVENT_TEST_FAIL, function () {
+	      if (++n % width === 0) {
+	        process$4.stdout.write('\n  ');
+	      }
+
+	      process$4.stdout.write(base.color('fail', base.symbols.bang));
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      process$4.stdout.write('\n');
+	      self.epilogue();
+	    });
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(Dot, base);
+	  Dot.description = 'dot matrix representation';
+	});
+
+	var doc = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Doc
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+	  var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+	  /**
+	   * Expose `Doc`.
+	   */
+
+	  module.exports = Doc;
+	  /**
+	   * Constructs a new `Doc` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Doc(runner, options) {
+	    base.call(this, runner, options);
+	    var indents = 2;
+
+	    function indent() {
+	      return Array(indents).join('  ');
+	    }
+
+	    runner.on(EVENT_SUITE_BEGIN, function (suite) {
+	      if (suite.root) {
+	        return;
+	      }
+
+	      ++indents;
+	      base.consoleLog('%s<section class="suite">', indent());
+	      ++indents;
+	      base.consoleLog('%s<h1>%s</h1>', indent(), utils.escape(suite.title));
+	      base.consoleLog('%s<dl>', indent());
+	    });
+	    runner.on(EVENT_SUITE_END, function (suite) {
+	      if (suite.root) {
+	        return;
+	      }
+
+	      base.consoleLog('%s</dl>', indent());
+	      --indents;
+	      base.consoleLog('%s</section>', indent());
+	      --indents;
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
+	      base.consoleLog('%s  <dt>%s</dt>', indent(), utils.escape(test.file));
+	      var code = utils.escape(utils.clean(test.body));
+	      base.consoleLog('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test, err) {
+	      base.consoleLog('%s  <dt class="error">%s</dt>', indent(), utils.escape(test.title));
+	      base.consoleLog('%s  <dt class="error">%s</dt>', indent(), utils.escape(test.file));
+	      var code = utils.escape(utils.clean(test.body));
+	      base.consoleLog('%s  <dd class="error"><pre><code>%s</code></pre></dd>', indent(), code);
+	      base.consoleLog('%s  <dd class="error">%s</dd>', indent(), utils.escape(err));
+	    });
+	  }
+
+	  Doc.description = 'HTML documentation';
+	});
+
+	var tap = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module TAP
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var EVENT_TEST_END = constants.EVENT_TEST_END;
+	  var inherits = utils.inherits;
+	  var sprintf = util.format;
+	  /**
+	   * Expose `TAP`.
+	   */
+
+	  module.exports = TAP;
+	  /**
+	   * Constructs a new `TAP` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function TAP(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var n = 1;
+	    var tapVersion = '12';
+
+	    if (options && options.reporterOptions) {
+	      if (options.reporterOptions.tapVersion) {
+	        tapVersion = options.reporterOptions.tapVersion.toString();
+	      }
+	    }
+
+	    this._producer = createProducer(tapVersion);
+	    runner.once(EVENT_RUN_BEGIN, function () {
+	      self._producer.writeVersion();
+	    });
+	    runner.on(EVENT_TEST_END, function () {
+	      ++n;
+	    });
+	    runner.on(EVENT_TEST_PENDING, function (test) {
+	      self._producer.writePending(n, test);
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      self._producer.writePass(n, test);
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test, err) {
+	      self._producer.writeFail(n, test, err);
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      self._producer.writeEpilogue(runner.stats);
+	    });
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(TAP, base);
+	  /**
+	   * Returns a TAP-safe title of `test`.
+	   *
+	   * @private
+	   * @param {Test} test - Test instance.
+	   * @return {String} title with any hash character removed
+	   */
+
+	  function title(test) {
+	    return test.fullTitle().replace(/#/g, '');
+	  }
+	  /**
+	   * Writes newline-terminated formatted string to reporter output stream.
+	   *
+	   * @private
+	   * @param {string} format - `printf`-like format string
+	   * @param {...*} [varArgs] - Format string arguments
+	   */
+
+
+	  function println(format, varArgs) {
+	    var vargs = Array.from(arguments);
+	    vargs[0] += '\n';
+	    process$4.stdout.write(sprintf.apply(null, vargs));
+	  }
+	  /**
+	   * Returns a `tapVersion`-appropriate TAP producer instance, if possible.
+	   *
+	   * @private
+	   * @param {string} tapVersion - Version of TAP specification to produce.
+	   * @returns {TAPProducer} specification-appropriate instance
+	   * @throws {Error} if specification version has no associated producer.
+	   */
+
+
+	  function createProducer(tapVersion) {
+	    var producers = {
+	      '12': new TAP12Producer(),
+	      '13': new TAP13Producer()
+	    };
+	    var producer = producers[tapVersion];
+
+	    if (!producer) {
+	      throw new Error('invalid or unsupported TAP version: ' + JSON.stringify(tapVersion));
+	    }
+
+	    return producer;
+	  }
+	  /**
+	   * @summary
+	   * Constructs a new TAPProducer.
+	   *
+	   * @description
+	   * <em>Only</em> to be used as an abstract base class.
+	   *
+	   * @private
+	   * @constructor
+	   */
+
+
+	  function TAPProducer() {}
+	  /**
+	   * Writes the TAP version to reporter output stream.
+	   *
+	   * @abstract
+	   */
+
+
+	  TAPProducer.prototype.writeVersion = function () {};
+	  /**
+	   * Writes the plan to reporter output stream.
+	   *
+	   * @abstract
+	   * @param {number} ntests - Number of tests that are planned to run.
+	   */
+
+
+	  TAPProducer.prototype.writePlan = function (ntests) {
+	    println('%d..%d', 1, ntests);
+	  };
+	  /**
+	   * Writes that test passed to reporter output stream.
+	   *
+	   * @abstract
+	   * @param {number} n - Index of test that passed.
+	   * @param {Test} test - Instance containing test information.
+	   */
+
+
+	  TAPProducer.prototype.writePass = function (n, test) {
+	    println('ok %d %s', n, title(test));
+	  };
+	  /**
+	   * Writes that test was skipped to reporter output stream.
+	   *
+	   * @abstract
+	   * @param {number} n - Index of test that was skipped.
+	   * @param {Test} test - Instance containing test information.
+	   */
+
+
+	  TAPProducer.prototype.writePending = function (n, test) {
+	    println('ok %d %s # SKIP -', n, title(test));
+	  };
+	  /**
+	   * Writes that test failed to reporter output stream.
+	   *
+	   * @abstract
+	   * @param {number} n - Index of test that failed.
+	   * @param {Test} test - Instance containing test information.
+	   * @param {Error} err - Reason the test failed.
+	   */
+
+
+	  TAPProducer.prototype.writeFail = function (n, test, err) {
+	    println('not ok %d %s', n, title(test));
+	  };
+	  /**
+	   * Writes the summary epilogue to reporter output stream.
+	   *
+	   * @abstract
+	   * @param {Object} stats - Object containing run statistics.
+	   */
+
+
+	  TAPProducer.prototype.writeEpilogue = function (stats) {
+	    // :TBD: Why is this not counting pending tests?
+	    println('# tests ' + (stats.passes + stats.failures));
+	    println('# pass ' + stats.passes); // :TBD: Why are we not showing pending results?
+
+	    println('# fail ' + stats.failures);
+	    this.writePlan(stats.passes + stats.failures + stats.pending);
+	  };
+	  /**
+	   * @summary
+	   * Constructs a new TAP12Producer.
+	   *
+	   * @description
+	   * Produces output conforming to the TAP12 specification.
+	   *
+	   * @private
+	   * @constructor
+	   * @extends TAPProducer
+	   * @see {@link https://testanything.org/tap-specification.html|Specification}
+	   */
+
+
+	  function TAP12Producer() {
+	    /**
+	     * Writes that test failed to reporter output stream, with error formatting.
+	     * @override
+	     */
+	    this.writeFail = function (n, test, err) {
+	      TAPProducer.prototype.writeFail.call(this, n, test, err);
+
+	      if (err.message) {
+	        println(err.message.replace(/^/gm, '  '));
+	      }
+
+	      if (err.stack) {
+	        println(err.stack.replace(/^/gm, '  '));
+	      }
+	    };
+	  }
+	  /**
+	   * Inherit from `TAPProducer.prototype`.
+	   */
+
+
+	  inherits(TAP12Producer, TAPProducer);
+	  /**
+	   * @summary
+	   * Constructs a new TAP13Producer.
+	   *
+	   * @description
+	   * Produces output conforming to the TAP13 specification.
+	   *
+	   * @private
+	   * @constructor
+	   * @extends TAPProducer
+	   * @see {@link https://testanything.org/tap-version-13-specification.html|Specification}
+	   */
+
+	  function TAP13Producer() {
+	    /**
+	     * Writes the TAP version to reporter output stream.
+	     * @override
+	     */
+	    this.writeVersion = function () {
+	      println('TAP version 13');
+	    };
+	    /**
+	     * Writes that test failed to reporter output stream, with error formatting.
+	     * @override
+	     */
+
+
+	    this.writeFail = function (n, test, err) {
+	      TAPProducer.prototype.writeFail.call(this, n, test, err);
+	      var emitYamlBlock = err.message != null || err.stack != null;
+
+	      if (emitYamlBlock) {
+	        println(indent(1) + '---');
+
+	        if (err.message) {
+	          println(indent(2) + 'message: |-');
+	          println(err.message.replace(/^/gm, indent(3)));
+	        }
+
+	        if (err.stack) {
+	          println(indent(2) + 'stack: |-');
+	          println(err.stack.replace(/^/gm, indent(3)));
+	        }
+
+	        println(indent(1) + '...');
+	      }
+	    };
+
+	    function indent(level) {
+	      return Array(level + 1).join('  ');
+	    }
+	  }
+	  /**
+	   * Inherit from `TAPProducer.prototype`.
+	   */
+
+
+	  inherits(TAP13Producer, TAPProducer);
+	  TAP.description = 'TAP-compatible output';
+	});
+
+	var fs = {};
+
+	var json = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module JSON
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var createUnsupportedError = errors.createUnsupportedError;
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_TEST_END = constants.EVENT_TEST_END;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  /**
+	   * Expose `JSON`.
+	   */
+
+	  module.exports = JSONReporter;
+	  /**
+	   * Constructs a new `JSON` reporter instance.
+	   *
+	   * @public
+	   * @class JSON
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function JSONReporter(runner) {
+	    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+	    base.call(this, runner, options);
+	    var self = this;
+	    var tests = [];
+	    var pending = [];
+	    var failures = [];
+	    var passes = [];
+	    var output;
+
+	    if (options.reporterOption && options.reporterOption.output) {
+	      if (utils.isBrowser()) {
+	        throw createUnsupportedError('file output not supported in browser');
+	      }
+
+	      output = options.reporterOption.output;
+	    }
+
+	    runner.on(EVENT_TEST_END, function (test) {
+	      tests.push(test);
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      passes.push(test);
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test) {
+	      failures.push(test);
+	    });
+	    runner.on(EVENT_TEST_PENDING, function (test) {
+	      pending.push(test);
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      var obj = {
+	        stats: self.stats,
+	        tests: tests.map(clean),
+	        pending: pending.map(clean),
+	        failures: failures.map(clean),
+	        passes: passes.map(clean)
+	      };
+	      runner.testResults = obj;
+	      var json = JSON.stringify(obj, null, 2);
+
+	      if (output) {
+	        try {
+	          fs.mkdirSync(path.dirname(output), {
+	            recursive: true
+	          });
+	          fs.writeFileSync(output, json);
+	        } catch (err) {
+	          console.error("".concat(base.symbols.err, " [mocha] writing output to \"").concat(output, "\" failed: ").concat(err.message, "\n"));
+	          process$4.stdout.write(json);
+	        }
+	      } else {
+	        process$4.stdout.write(json);
+	      }
+	    });
+	  }
+	  /**
+	   * Return a plain-object representation of `test`
+	   * free of cyclic properties etc.
+	   *
+	   * @private
+	   * @param {Object} test
+	   * @return {Object}
+	   */
+
+
+	  function clean(test) {
+	    var err = test.err || {};
+
+	    if (err instanceof Error) {
+	      err = errorJSON(err);
+	    }
+
+	    return {
+	      title: test.title,
+	      fullTitle: test.fullTitle(),
+	      file: test.file,
+	      duration: test.duration,
+	      currentRetry: test.currentRetry(),
+	      speed: test.speed,
+	      err: cleanCycles(err)
+	    };
+	  }
+	  /**
+	   * Replaces any circular references inside `obj` with '[object Object]'
+	   *
+	   * @private
+	   * @param {Object} obj
+	   * @return {Object}
+	   */
+
+
+	  function cleanCycles(obj) {
+	    var cache = [];
+	    return JSON.parse(JSON.stringify(obj, function (key, value) {
+	      if (_typeof(value) === 'object' && value !== null) {
+	        if (cache.indexOf(value) !== -1) {
+	          // Instead of going in a circle, we'll print [object Object]
+	          return '' + value;
+	        }
+
+	        cache.push(value);
+	      }
+
+	      return value;
+	    }));
+	  }
+	  /**
+	   * Transform an Error object into a JSON object.
+	   *
+	   * @private
+	   * @param {Error} err
+	   * @return {Object}
+	   */
+
+
+	  function errorJSON(err) {
+	    var res = {};
+	    Object.getOwnPropertyNames(err).forEach(function (key) {
+	      res[key] = err[key];
+	    }, err);
+	    return res;
+	  }
+
+	  JSONReporter.description = 'single JSON object';
+	});
+
+	var valueOf = 1.0.valueOf;
+
+	// `thisNumberValue` abstract operation
+	// https://tc39.es/ecma262/#sec-thisnumbervalue
+	var thisNumberValue = function (value) {
+	  return valueOf.call(value);
+	};
+
+	// `String.prototype.repeat` method implementation
+	// https://tc39.es/ecma262/#sec-string.prototype.repeat
+	var stringRepeat = function repeat(count) {
+	  var str = toString_1(requireObjectCoercible(this));
+	  var result = '';
+	  var n = toInteger(count);
+	  if (n < 0 || n == Infinity) throw RangeError('Wrong number of repetitions');
+	  for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) result += str;
+	  return result;
+	};
 
-module.exports = defineProperties;
+	var nativeToFixed = 1.0.toFixed;
+	var floor = Math.floor;
 
-},{"object-keys":60}],48:[function(require,module,exports){
-/*!
+	var pow = function (x, n, acc) {
+	  return n === 0 ? acc : n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc);
+	};
 
- diff v4.0.1
+	var log = function (x) {
+	  var n = 0;
+	  var x2 = x;
+	  while (x2 >= 4096) {
+	    n += 12;
+	    x2 /= 4096;
+	  }
+	  while (x2 >= 2) {
+	    n += 1;
+	    x2 /= 2;
+	  } return n;
+	};
 
-Software License Agreement (BSD License)
+	var multiply = function (data, n, c) {
+	  var index = -1;
+	  var c2 = c;
+	  while (++index < 6) {
+	    c2 += n * data[index];
+	    data[index] = c2 % 1e7;
+	    c2 = floor(c2 / 1e7);
+	  }
+	};
 
-Copyright (c) 2009-2015, Kevin Decker <kpdecker@gmail.com>
+	var divide = function (data, n) {
+	  var index = 6;
+	  var c = 0;
+	  while (--index >= 0) {
+	    c += data[index];
+	    data[index] = floor(c / n);
+	    c = (c % n) * 1e7;
+	  }
+	};
 
-All rights reserved.
+	var dataToString = function (data) {
+	  var index = 6;
+	  var s = '';
+	  while (--index >= 0) {
+	    if (s !== '' || index === 0 || data[index] !== 0) {
+	      var t = String(data[index]);
+	      s = s === '' ? t : s + stringRepeat.call('0', 7 - t.length) + t;
+	    }
+	  } return s;
+	};
 
-Redistribution and use of this software in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
+	var FORCED = nativeToFixed && (
+	  0.00008.toFixed(3) !== '0.000' ||
+	  0.9.toFixed(0) !== '1' ||
+	  1.255.toFixed(2) !== '1.25' ||
+	  1000000000000000128.0.toFixed(0) !== '1000000000000000128'
+	) || !fails(function () {
+	  // V8 ~ Android 4.3-
+	  nativeToFixed.call({});
+	});
+
+	// `Number.prototype.toFixed` method
+	// https://tc39.es/ecma262/#sec-number.prototype.tofixed
+	_export({ target: 'Number', proto: true, forced: FORCED }, {
+	  toFixed: function toFixed(fractionDigits) {
+	    var number = thisNumberValue(this);
+	    var fractDigits = toInteger(fractionDigits);
+	    var data = [0, 0, 0, 0, 0, 0];
+	    var sign = '';
+	    var result = '0';
+	    var e, z, j, k;
+
+	    if (fractDigits < 0 || fractDigits > 20) throw RangeError('Incorrect fraction digits');
+	    // eslint-disable-next-line no-self-compare -- NaN check
+	    if (number != number) return 'NaN';
+	    if (number <= -1e21 || number >= 1e21) return String(number);
+	    if (number < 0) {
+	      sign = '-';
+	      number = -number;
+	    }
+	    if (number > 1e-21) {
+	      e = log(number * pow(2, 69, 1)) - 69;
+	      z = e < 0 ? number * pow(2, -e, 1) : number / pow(2, e, 1);
+	      z *= 0x10000000000000;
+	      e = 52 - e;
+	      if (e > 0) {
+	        multiply(data, 0, z);
+	        j = fractDigits;
+	        while (j >= 7) {
+	          multiply(data, 1e7, 0);
+	          j -= 7;
+	        }
+	        multiply(data, pow(10, j, 1), 0);
+	        j = e - 1;
+	        while (j >= 23) {
+	          divide(data, 1 << 23);
+	          j -= 23;
+	        }
+	        divide(data, 1 << j);
+	        multiply(data, 1, 1);
+	        divide(data, 2);
+	        result = dataToString(data);
+	      } else {
+	        multiply(data, 0, z);
+	        multiply(data, 1 << -e, 0);
+	        result = dataToString(data) + stringRepeat.call('0', fractDigits);
+	      }
+	    }
+	    if (fractDigits > 0) {
+	      k = result.length;
+	      result = sign + (k <= fractDigits
+	        ? '0.' + stringRepeat.call('0', fractDigits - k) + result
+	        : result.slice(0, k - fractDigits) + '.' + result.slice(k - fractDigits));
+	    } else {
+	      result = sign + result;
+	    } return result;
+	  }
+	});
+
+	/**
+	 @module browser/Progress
+	*/
+
+	/**
+	 * Expose `Progress`.
+	 */
+
+	var progress$1 = Progress;
+	/**
+	 * Initialize a new `Progress` indicator.
+	 */
+
+	function Progress() {
+	  this.percent = 0;
+	  this.size(0);
+	  this.fontSize(11);
+	  this.font('helvetica, arial, sans-serif');
+	}
+	/**
+	 * Set progress size to `size`.
+	 *
+	 * @public
+	 * @param {number} size
+	 * @return {Progress} Progress instance.
+	 */
+
+
+	Progress.prototype.size = function (size) {
+	  this._size = size;
+	  return this;
+	};
+	/**
+	 * Set text to `text`.
+	 *
+	 * @public
+	 * @param {string} text
+	 * @return {Progress} Progress instance.
+	 */
+
+
+	Progress.prototype.text = function (text) {
+	  this._text = text;
+	  return this;
+	};
+	/**
+	 * Set font size to `size`.
+	 *
+	 * @public
+	 * @param {number} size
+	 * @return {Progress} Progress instance.
+	 */
+
+
+	Progress.prototype.fontSize = function (size) {
+	  this._fontSize = size;
+	  return this;
+	};
+	/**
+	 * Set font to `family`.
+	 *
+	 * @param {string} family
+	 * @return {Progress} Progress instance.
+	 */
 
-* Redistributions of source code must retain the above
-  copyright notice, this list of conditions and the
-  following disclaimer.
 
-* Redistributions in binary form must reproduce the above
-  copyright notice, this list of conditions and the
-  following disclaimer in the documentation and/or other
-  materials provided with the distribution.
+	Progress.prototype.font = function (family) {
+	  this._font = family;
+	  return this;
+	};
+	/**
+	 * Update percentage to `n`.
+	 *
+	 * @param {number} n
+	 * @return {Progress} Progress instance.
+	 */
 
-* Neither the name of Kevin Decker nor the names of its
-  contributors may be used to endorse or promote products
-  derived from this software without specific prior
-  written permission.
 
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
-IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
-OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-@license
-*/
-(function (global, factory) {
-  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
-  false ? define(['exports'], factory) :
-  (global = global || self, factory(global.Diff = {}));
-}(this, function (exports) { 'use strict';
-
-  function Diff() {}
-  Diff.prototype = {
-    diff: function diff(oldString, newString) {
-      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
-      var callback = options.callback;
-
-      if (typeof options === 'function') {
-        callback = options;
-        options = {};
-      }
-
-      this.options = options;
-      var self = this;
-
-      function done(value) {
-        if (callback) {
-          setTimeout(function () {
-            callback(undefined, value);
-          }, 0);
-          return true;
-        } else {
-          return value;
-        }
-      } // Allow subclasses to massage the input prior to running
-
-
-      oldString = this.castInput(oldString);
-      newString = this.castInput(newString);
-      oldString = this.removeEmpty(this.tokenize(oldString));
-      newString = this.removeEmpty(this.tokenize(newString));
-      var newLen = newString.length,
-          oldLen = oldString.length;
-      var editLength = 1;
-      var maxEditLength = newLen + oldLen;
-      var bestPath = [{
-        newPos: -1,
-        components: []
-      }]; // Seed editLength = 0, i.e. the content starts with the same values
-
-      var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
-
-      if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-        // Identity per the equality and tokenizer
-        return done([{
-          value: this.join(newString),
-          count: newString.length
-        }]);
-      } // Main worker method. checks all permutations of a given edit length for acceptance.
-
-
-      function execEditLength() {
-        for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
-          var basePath = void 0;
-
-          var addPath = bestPath[diagonalPath - 1],
-              removePath = bestPath[diagonalPath + 1],
-              _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
-
-          if (addPath) {
-            // No one else is going to attempt to use this value, clear it
-            bestPath[diagonalPath - 1] = undefined;
-          }
-
-          var canAdd = addPath && addPath.newPos + 1 < newLen,
-              canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
-
-          if (!canAdd && !canRemove) {
-            // If this path is a terminal then prune
-            bestPath[diagonalPath] = undefined;
-            continue;
-          } // Select the diagonal that we want to branch from. We select the prior
-          // path whose position in the new string is the farthest from the origin
-          // and does not pass the bounds of the diff graph
-
-
-          if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
-            basePath = clonePath(removePath);
-            self.pushComponent(basePath.components, undefined, true);
-          } else {
-            basePath = addPath; // No need to clone, we've pulled it from the list
-
-            basePath.newPos++;
-            self.pushComponent(basePath.components, true, undefined);
-          }
-
-          _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath); // If we have hit the end of both strings, then we are done
-
-          if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
-            return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
-          } else {
-            // Otherwise track this path as a potential candidate and continue.
-            bestPath[diagonalPath] = basePath;
-          }
-        }
-
-        editLength++;
-      } // Performs the length of edit iteration. Is a bit fugly as this has to support the
-      // sync and async mode which is never fun. Loops over execEditLength until a value
-      // is produced.
-
-
-      if (callback) {
-        (function exec() {
-          setTimeout(function () {
-            // This should not happen, but we want to be safe.
-
-            /* istanbul ignore next */
-            if (editLength > maxEditLength) {
-              return callback();
-            }
-
-            if (!execEditLength()) {
-              exec();
-            }
-          }, 0);
-        })();
-      } else {
-        while (editLength <= maxEditLength) {
-          var ret = execEditLength();
-
-          if (ret) {
-            return ret;
-          }
-        }
-      }
-    },
-    pushComponent: function pushComponent(components, added, removed) {
-      var last = components[components.length - 1];
-
-      if (last && last.added === added && last.removed === removed) {
-        // We need to clone here as the component clone operation is just
-        // as shallow array clone
-        components[components.length - 1] = {
-          count: last.count + 1,
-          added: added,
-          removed: removed
-        };
-      } else {
-        components.push({
-          count: 1,
-          added: added,
-          removed: removed
-        });
-      }
-    },
-    extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
-      var newLen = newString.length,
-          oldLen = oldString.length,
-          newPos = basePath.newPos,
-          oldPos = newPos - diagonalPath,
-          commonCount = 0;
-
-      while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
-        newPos++;
-        oldPos++;
-        commonCount++;
-      }
-
-      if (commonCount) {
-        basePath.components.push({
-          count: commonCount
-        });
-      }
-
-      basePath.newPos = newPos;
-      return oldPos;
-    },
-    equals: function equals(left, right) {
-      if (this.options.comparator) {
-        return this.options.comparator(left, right);
-      } else {
-        return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
-      }
-    },
-    removeEmpty: function removeEmpty(array) {
-      var ret = [];
-
-      for (var i = 0; i < array.length; i++) {
-        if (array[i]) {
-          ret.push(array[i]);
-        }
-      }
-
-      return ret;
-    },
-    castInput: function castInput(value) {
-      return value;
-    },
-    tokenize: function tokenize(value) {
-      return value.split('');
-    },
-    join: function join(chars) {
-      return chars.join('');
-    }
-  };
-
-  function buildValues(diff, components, newString, oldString, useLongestToken) {
-    var componentPos = 0,
-        componentLen = components.length,
-        newPos = 0,
-        oldPos = 0;
-
-    for (; componentPos < componentLen; componentPos++) {
-      var component = components[componentPos];
-
-      if (!component.removed) {
-        if (!component.added && useLongestToken) {
-          var value = newString.slice(newPos, newPos + component.count);
-          value = value.map(function (value, i) {
-            var oldValue = oldString[oldPos + i];
-            return oldValue.length > value.length ? oldValue : value;
-          });
-          component.value = diff.join(value);
-        } else {
-          component.value = diff.join(newString.slice(newPos, newPos + component.count));
-        }
-
-        newPos += component.count; // Common case
-
-        if (!component.added) {
-          oldPos += component.count;
-        }
-      } else {
-        component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
-        oldPos += component.count; // Reverse add and remove so removes are output first to match common convention
-        // The diffing algorithm is tied to add then remove output and this is the simplest
-        // route to get the desired output with minimal overhead.
-
-        if (componentPos && components[componentPos - 1].added) {
-          var tmp = components[componentPos - 1];
-          components[componentPos - 1] = components[componentPos];
-          components[componentPos] = tmp;
-        }
-      }
-    } // Special case handle for when one terminal is ignored (i.e. whitespace).
-    // For this case we merge the terminal into the prior string and drop the change.
-    // This is only available for string mode.
-
-
-    var lastComponent = components[componentLen - 1];
-
-    if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
-      components[componentLen - 2].value += lastComponent.value;
-      components.pop();
-    }
-
-    return components;
-  }
-
-  function clonePath(path) {
-    return {
-      newPos: path.newPos,
-      components: path.components.slice(0)
-    };
-  }
-
-  var characterDiff = new Diff();
-  function diffChars(oldStr, newStr, options) {
-    return characterDiff.diff(oldStr, newStr, options);
-  }
-
-  function generateOptions(options, defaults) {
-    if (typeof options === 'function') {
-      defaults.callback = options;
-    } else if (options) {
-      for (var name in options) {
-        /* istanbul ignore else */
-        if (options.hasOwnProperty(name)) {
-          defaults[name] = options[name];
-        }
-      }
-    }
-
-    return defaults;
-  }
-
-  //
-  // Ranges and exceptions:
-  // Latin-1 Supplement, 0080–00FF
-  //  - U+00D7  × Multiplication sign
-  //  - U+00F7  ÷ Division sign
-  // Latin Extended-A, 0100–017F
-  // Latin Extended-B, 0180–024F
-  // IPA Extensions, 0250–02AF
-  // Spacing Modifier Letters, 02B0–02FF
-  //  - U+02C7  ˇ &#711;  Caron
-  //  - U+02D8  ˘ &#728;  Breve
-  //  - U+02D9  ˙ &#729;  Dot Above
-  //  - U+02DA  ˚ &#730;  Ring Above
-  //  - U+02DB  ˛ &#731;  Ogonek
-  //  - U+02DC  ˜ &#732;  Small Tilde
-  //  - U+02DD  ˝ &#733;  Double Acute Accent
-  // Latin Extended Additional, 1E00–1EFF
-
-  var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
-  var reWhitespace = /\S/;
-  var wordDiff = new Diff();
-
-  wordDiff.equals = function (left, right) {
-    if (this.options.ignoreCase) {
-      left = left.toLowerCase();
-      right = right.toLowerCase();
-    }
-
-    return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
-  };
-
-  wordDiff.tokenize = function (value) {
-    var tokens = value.split(/(\s+|[()[\]{}'"]|\b)/); // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
-
-    for (var i = 0; i < tokens.length - 1; i++) {
-      // If we have an empty string in the next field and we have only word chars before and after, merge
-      if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
-        tokens[i] += tokens[i + 2];
-        tokens.splice(i + 1, 2);
-        i--;
-      }
-    }
-
-    return tokens;
-  };
-
-  function diffWords(oldStr, newStr, options) {
-    options = generateOptions(options, {
-      ignoreWhitespace: true
-    });
-    return wordDiff.diff(oldStr, newStr, options);
-  }
-  function diffWordsWithSpace(oldStr, newStr, options) {
-    return wordDiff.diff(oldStr, newStr, options);
-  }
-
-  var lineDiff = new Diff();
-
-  lineDiff.tokenize = function (value) {
-    var retLines = [],
-        linesAndNewlines = value.split(/(\n|\r\n)/); // Ignore the final empty token that occurs if the string ends with a new line
-
-    if (!linesAndNewlines[linesAndNewlines.length - 1]) {
-      linesAndNewlines.pop();
-    } // Merge the content and line separators into single tokens
-
-
-    for (var i = 0; i < linesAndNewlines.length; i++) {
-      var line = linesAndNewlines[i];
-
-      if (i % 2 && !this.options.newlineIsToken) {
-        retLines[retLines.length - 1] += line;
-      } else {
-        if (this.options.ignoreWhitespace) {
-          line = line.trim();
-        }
-
-        retLines.push(line);
-      }
-    }
-
-    return retLines;
-  };
-
-  function diffLines(oldStr, newStr, callback) {
-    return lineDiff.diff(oldStr, newStr, callback);
-  }
-  function diffTrimmedLines(oldStr, newStr, callback) {
-    var options = generateOptions(callback, {
-      ignoreWhitespace: true
-    });
-    return lineDiff.diff(oldStr, newStr, options);
-  }
-
-  var sentenceDiff = new Diff();
-
-  sentenceDiff.tokenize = function (value) {
-    return value.split(/(\S.+?[.!?])(?=\s+|$)/);
-  };
-
-  function diffSentences(oldStr, newStr, callback) {
-    return sentenceDiff.diff(oldStr, newStr, callback);
-  }
-
-  var cssDiff = new Diff();
-
-  cssDiff.tokenize = function (value) {
-    return value.split(/([{}:;,]|\s+)/);
-  };
-
-  function diffCss(oldStr, newStr, callback) {
-    return cssDiff.diff(oldStr, newStr, callback);
-  }
-
-  function _typeof(obj) {
-    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
-      _typeof = function (obj) {
-        return typeof obj;
-      };
-    } else {
-      _typeof = function (obj) {
-        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
-      };
-    }
-
-    return _typeof(obj);
-  }
-
-  function _toConsumableArray(arr) {
-    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
-  }
-
-  function _arrayWithoutHoles(arr) {
-    if (Array.isArray(arr)) {
-      for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
-
-      return arr2;
-    }
-  }
-
-  function _iterableToArray(iter) {
-    if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
-  }
-
-  function _nonIterableSpread() {
-    throw new TypeError("Invalid attempt to spread non-iterable instance");
-  }
-
-  var objectPrototypeToString = Object.prototype.toString;
-  var jsonDiff = new Diff(); // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
-  // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
-
-  jsonDiff.useLongestToken = true;
-  jsonDiff.tokenize = lineDiff.tokenize;
-
-  jsonDiff.castInput = function (value) {
-    var _this$options = this.options,
-        undefinedReplacement = _this$options.undefinedReplacement,
-        _this$options$stringi = _this$options.stringifyReplacer,
-        stringifyReplacer = _this$options$stringi === void 0 ? function (k, v) {
-      return typeof v === 'undefined' ? undefinedReplacement : v;
-    } : _this$options$stringi;
-    return typeof value === 'string' ? value : JSON.stringify(canonicalize(value, null, null, stringifyReplacer), stringifyReplacer, '  ');
-  };
-
-  jsonDiff.equals = function (left, right) {
-    return Diff.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
-  };
-
-  function diffJson(oldObj, newObj, options) {
-    return jsonDiff.diff(oldObj, newObj, options);
-  } // This function handles the presence of circular references by bailing out when encountering an
-  // object that is already on the "stack" of items being processed. Accepts an optional replacer
-
-  function canonicalize(obj, stack, replacementStack, replacer, key) {
-    stack = stack || [];
-    replacementStack = replacementStack || [];
-
-    if (replacer) {
-      obj = replacer(key, obj);
-    }
-
-    var i;
-
-    for (i = 0; i < stack.length; i += 1) {
-      if (stack[i] === obj) {
-        return replacementStack[i];
-      }
-    }
+	Progress.prototype.update = function (n) {
+	  this.percent = n;
+	  return this;
+	};
+	/**
+	 * Draw on `ctx`.
+	 *
+	 * @param {CanvasRenderingContext2d} ctx
+	 * @return {Progress} Progress instance.
+	 */
+
+
+	Progress.prototype.draw = function (ctx) {
+	  try {
+	    var percent = Math.min(this.percent, 100);
+	    var size = this._size;
+	    var half = size / 2;
+	    var x = half;
+	    var y = half;
+	    var rad = half - 1;
+	    var fontSize = this._fontSize;
+	    ctx.font = fontSize + 'px ' + this._font;
+	    var angle = Math.PI * 2 * (percent / 100);
+	    ctx.clearRect(0, 0, size, size); // outer circle
+
+	    ctx.strokeStyle = '#9f9f9f';
+	    ctx.beginPath();
+	    ctx.arc(x, y, rad, 0, angle, false);
+	    ctx.stroke(); // inner circle
+
+	    ctx.strokeStyle = '#eee';
+	    ctx.beginPath();
+	    ctx.arc(x, y, rad - 1, 0, angle, true);
+	    ctx.stroke(); // text
+
+	    var text = this._text || (percent | 0) + '%';
+	    var w = ctx.measureText(text).width;
+	    ctx.fillText(text, x - w / 2 + 1, y + fontSize / 2 - 1);
+	  } catch (ignore) {// don't fail if we can't render progress
+	  }
+
+	  return this;
+	};
+
+	var html = createCommonjsModule(function (module, exports) {
+	  /* eslint-env browser */
+
+	  /**
+	   * @module HTML
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+	  var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var escape = utils.escape;
+	  /**
+	   * Save timer references to avoid Sinon interfering (see GH-237).
+	   */
+
+	  var Date = commonjsGlobal.Date;
+	  /**
+	   * Expose `HTML`.
+	   */
+
+	  module.exports = HTML;
+	  /**
+	   * Stats template.
+	   */
+
+	  var statsTemplate = '<ul id="mocha-stats">' + '<li class="progress"><canvas width="40" height="40"></canvas></li>' + '<li class="passes"><a href="/service/javascript:void(0);">passes:</a> <em>0</em></li>' + '<li class="failures"><a href="/service/javascript:void(0);">failures:</a> <em>0</em></li>' + '<li class="duration">duration: <em>0</em>s</li>' + '</ul>';
+	  var playIcon = '&#x2023;';
+	  /**
+	   * Constructs a new `HTML` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function HTML(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var stats = this.stats;
+	    var stat = fragment(statsTemplate);
+	    var items = stat.getElementsByTagName('li');
+	    var passes = items[1].getElementsByTagName('em')[0];
+	    var passesLink = items[1].getElementsByTagName('a')[0];
+	    var failures = items[2].getElementsByTagName('em')[0];
+	    var failuresLink = items[2].getElementsByTagName('a')[0];
+	    var duration = items[3].getElementsByTagName('em')[0];
+	    var canvas = stat.getElementsByTagName('canvas')[0];
+	    var report = fragment('<ul id="mocha-report"></ul>');
+	    var stack = [report];
+	    var progress;
+	    var ctx;
+	    var root = document.getElementById('mocha');
+
+	    if (canvas.getContext) {
+	      var ratio = window.devicePixelRatio || 1;
+	      canvas.style.width = canvas.width;
+	      canvas.style.height = canvas.height;
+	      canvas.width *= ratio;
+	      canvas.height *= ratio;
+	      ctx = canvas.getContext('2d');
+	      ctx.scale(ratio, ratio);
+	      progress = new progress$1();
+	    }
+
+	    if (!root) {
+	      return error('#mocha div missing, add it to your document');
+	    } // pass toggle
+
+
+	    on(passesLink, 'click', function (evt) {
+	      evt.preventDefault();
+	      unhide();
+	      var name = /pass/.test(report.className) ? '' : ' pass';
+	      report.className = report.className.replace(/fail|pass/g, '') + name;
+
+	      if (report.className.trim()) {
+	        hideSuitesWithout('test pass');
+	      }
+	    }); // failure toggle
+
+	    on(failuresLink, 'click', function (evt) {
+	      evt.preventDefault();
+	      unhide();
+	      var name = /fail/.test(report.className) ? '' : ' fail';
+	      report.className = report.className.replace(/fail|pass/g, '') + name;
+
+	      if (report.className.trim()) {
+	        hideSuitesWithout('test fail');
+	      }
+	    });
+	    root.appendChild(stat);
+	    root.appendChild(report);
+
+	    if (progress) {
+	      progress.size(40);
+	    }
+
+	    runner.on(EVENT_SUITE_BEGIN, function (suite) {
+	      if (suite.root) {
+	        return;
+	      } // suite
+
+
+	      var url = self.suiteURL(suite);
+	      var el = fragment('<li class="suite"><h1><a href="http://github.com/%s">%s</a></h1></li>', url, escape(suite.title)); // container
+
+	      stack[0].appendChild(el);
+	      stack.unshift(document.createElement('ul'));
+	      el.appendChild(stack[0]);
+	    });
+	    runner.on(EVENT_SUITE_END, function (suite) {
+	      if (suite.root) {
+	        updateStats();
+	        return;
+	      }
+
+	      stack.shift();
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      var url = self.testURL(test);
+	      var markup = '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> ' + '<a href="http://github.com/%s" class="replay">' + playIcon + '</a></h2></li>';
+	      var el = fragment(markup, test.speed, test.title, test.duration, url);
+	      self.addCodeToggle(el, test.body);
+	      appendToStack(el);
+	      updateStats();
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test) {
+	      var el = fragment('<li class="test fail"><h2>%e <a href="http://github.com/%e" class="replay">' + playIcon + '</a></h2></li>', test.title, self.testURL(test));
+	      var stackString; // Note: Includes leading newline
+
+	      var message = test.err.toString(); // <=IE7 stringifies to [Object Error]. Since it can be overloaded, we
+	      // check for the result of the stringifying.
+
+	      if (message === '[object Error]') {
+	        message = test.err.message;
+	      }
+
+	      if (test.err.stack) {
+	        var indexOfMessage = test.err.stack.indexOf(test.err.message);
+
+	        if (indexOfMessage === -1) {
+	          stackString = test.err.stack;
+	        } else {
+	          stackString = test.err.stack.substr(test.err.message.length + indexOfMessage);
+	        }
+	      } else if (test.err.sourceURL && test.err.line !== undefined) {
+	        // Safari doesn't give you a stack. Let's at least provide a source line.
+	        stackString = '\n(' + test.err.sourceURL + ':' + test.err.line + ')';
+	      }
+
+	      stackString = stackString || '';
+
+	      if (test.err.htmlMessage && stackString) {
+	        el.appendChild(fragment('<div class="html-error">%s\n<pre class="error">%e</pre></div>', test.err.htmlMessage, stackString));
+	      } else if (test.err.htmlMessage) {
+	        el.appendChild(fragment('<div class="html-error">%s</div>', test.err.htmlMessage));
+	      } else {
+	        el.appendChild(fragment('<pre class="error">%e%e</pre>', message, stackString));
+	      }
+
+	      self.addCodeToggle(el, test.body);
+	      appendToStack(el);
+	      updateStats();
+	    });
+	    runner.on(EVENT_TEST_PENDING, function (test) {
+	      var el = fragment('<li class="test pass pending"><h2>%e</h2></li>', test.title);
+	      appendToStack(el);
+	      updateStats();
+	    });
+
+	    function appendToStack(el) {
+	      // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack.
+	      if (stack[0]) {
+	        stack[0].appendChild(el);
+	      }
+	    }
+
+	    function updateStats() {
+	      // TODO: add to stats
+	      var percent = stats.tests / runner.total * 100 | 0;
+
+	      if (progress) {
+	        progress.update(percent).draw(ctx);
+	      } // update stats
+
+
+	      var ms = new Date() - stats.start;
+	      text(passes, stats.passes);
+	      text(failures, stats.failures);
+	      text(duration, (ms / 1000).toFixed(2));
+	    }
+	  }
+	  /**
+	   * Makes a URL, preserving querystring ("search") parameters.
+	   *
+	   * @param {string} s
+	   * @return {string} A new URL.
+	   */
+
+
+	  function makeUrl(s) {
+	    var search = window.location.search; // Remove previous grep query parameter if present
+
+	    if (search) {
+	      search = search.replace(/[?&]grep=[^&\s]*/g, '').replace(/^&/, '?');
+	    }
+
+	    return window.location.pathname + (search ? search + '&' : '?') + 'grep=' + encodeURIComponent(escapeStringRegexp(s));
+	  }
+	  /**
+	   * Provide suite URL.
+	   *
+	   * @param {Object} [suite]
+	   */
+
+
+	  HTML.prototype.suiteURL = function (suite) {
+	    return makeUrl(suite.fullTitle());
+	  };
+	  /**
+	   * Provide test URL.
+	   *
+	   * @param {Object} [test]
+	   */
+
+
+	  HTML.prototype.testURL = function (test) {
+	    return makeUrl(test.fullTitle());
+	  };
+	  /**
+	   * Adds code toggle functionality for the provided test's list element.
+	   *
+	   * @param {HTMLLIElement} el
+	   * @param {string} contents
+	   */
+
+
+	  HTML.prototype.addCodeToggle = function (el, contents) {
+	    var h2 = el.getElementsByTagName('h2')[0];
+	    on(h2, 'click', function () {
+	      pre.style.display = pre.style.display === 'none' ? 'block' : 'none';
+	    });
+	    var pre = fragment('<pre><code>%e</code></pre>', utils.clean(contents));
+	    el.appendChild(pre);
+	    pre.style.display = 'none';
+	  };
+	  /**
+	   * Display error `msg`.
+	   *
+	   * @param {string} msg
+	   */
+
+
+	  function error(msg) {
+	    document.body.appendChild(fragment('<div id="mocha-error">%s</div>', msg));
+	  }
+	  /**
+	   * Return a DOM fragment from `html`.
+	   *
+	   * @param {string} html
+	   */
+
+
+	  function fragment(html) {
+	    var args = arguments;
+	    var div = document.createElement('div');
+	    var i = 1;
+	    div.innerHTML = html.replace(/%([se])/g, function (_, type) {
+	      switch (type) {
+	        case 's':
+	          return String(args[i++]);
+
+	        case 'e':
+	          return escape(args[i++]);
+	        // no default
+	      }
+	    });
+	    return div.firstChild;
+	  }
+	  /**
+	   * Check for suites that do not have elements
+	   * with `classname`, and hide them.
+	   *
+	   * @param {text} classname
+	   */
+
+
+	  function hideSuitesWithout(classname) {
+	    var suites = document.getElementsByClassName('suite');
+
+	    for (var i = 0; i < suites.length; i++) {
+	      var els = suites[i].getElementsByClassName(classname);
+
+	      if (!els.length) {
+	        suites[i].className += ' hidden';
+	      }
+	    }
+	  }
+	  /**
+	   * Unhide .hidden suites.
+	   */
+
+
+	  function unhide() {
+	    var els = document.getElementsByClassName('suite hidden');
+
+	    while (els.length > 0) {
+	      els[0].className = els[0].className.replace('suite hidden', 'suite');
+	    }
+	  }
+	  /**
+	   * Set an element's text contents.
+	   *
+	   * @param {HTMLElement} el
+	   * @param {string} contents
+	   */
+
+
+	  function text(el, contents) {
+	    if (el.textContent) {
+	      el.textContent = contents;
+	    } else {
+	      el.innerText = contents;
+	    }
+	  }
+	  /**
+	   * Listen on `event` with callback `fn`.
+	   */
+
+
+	  function on(el, event, fn) {
+	    if (el.addEventListener) {
+	      el.addEventListener(event, fn, false);
+	    } else {
+	      el.attachEvent('on' + event, fn);
+	    }
+	  }
+
+	  HTML.browserOnly = true;
+	});
+
+	var list = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module List
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var inherits = utils.inherits;
+	  var constants = runner.constants;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_TEST_BEGIN = constants.EVENT_TEST_BEGIN;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var color = base.color;
+	  var cursor = base.cursor;
+	  /**
+	   * Expose `List`.
+	   */
+
+	  module.exports = List;
+	  /**
+	   * Constructs a new `List` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function List(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var n = 0;
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      base.consoleLog();
+	    });
+	    runner.on(EVENT_TEST_BEGIN, function (test) {
+	      process$4.stdout.write(color('pass', '    ' + test.fullTitle() + ': '));
+	    });
+	    runner.on(EVENT_TEST_PENDING, function (test) {
+	      var fmt = color('checkmark', '  -') + color('pending', ' %s');
+	      base.consoleLog(fmt, test.fullTitle());
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      var fmt = color('checkmark', '  ' + base.symbols.ok) + color('pass', ' %s: ') + color(test.speed, '%dms');
+	      cursor.CR();
+	      base.consoleLog(fmt, test.fullTitle(), test.duration);
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test) {
+	      cursor.CR();
+	      base.consoleLog(color('fail', '  %d) %s'), ++n, test.fullTitle());
+	    });
+	    runner.once(EVENT_RUN_END, self.epilogue.bind(self));
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(List, base);
+	  List.description = 'like "spec" reporter but flat';
+	});
+
+	var min = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Min
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var inherits = utils.inherits;
+	  var constants = runner.constants;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  /**
+	   * Expose `Min`.
+	   */
+
+	  module.exports = Min;
+	  /**
+	   * Constructs a new `Min` reporter instance.
+	   *
+	   * @description
+	   * This minimal test reporter is best used with '--watch'.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Min(runner, options) {
+	    base.call(this, runner, options);
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      // clear screen
+	      process$4.stdout.write("\x1B[2J"); // set cursor position
+
+	      process$4.stdout.write("\x1B[1;3H");
+	    });
+	    runner.once(EVENT_RUN_END, this.epilogue.bind(this));
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(Min, base);
+	  Min.description = 'essentially just a summary';
+	});
+
+	var spec = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Spec
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+	  var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var inherits = utils.inherits;
+	  var color = base.color;
+	  /**
+	   * Expose `Spec`.
+	   */
+
+	  module.exports = Spec;
+	  /**
+	   * Constructs a new `Spec` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Spec(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var indents = 0;
+	    var n = 0;
+
+	    function indent() {
+	      return Array(indents).join('  ');
+	    }
+
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      base.consoleLog();
+	    });
+	    runner.on(EVENT_SUITE_BEGIN, function (suite) {
+	      ++indents;
+	      base.consoleLog(color('suite', '%s%s'), indent(), suite.title);
+	    });
+	    runner.on(EVENT_SUITE_END, function () {
+	      --indents;
+
+	      if (indents === 1) {
+	        base.consoleLog();
+	      }
+	    });
+	    runner.on(EVENT_TEST_PENDING, function (test) {
+	      var fmt = indent() + color('pending', '  - %s');
+	      base.consoleLog(fmt, test.title);
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      var fmt;
+
+	      if (test.speed === 'fast') {
+	        fmt = indent() + color('checkmark', '  ' + base.symbols.ok) + color('pass', ' %s');
+	        base.consoleLog(fmt, test.title);
+	      } else {
+	        fmt = indent() + color('checkmark', '  ' + base.symbols.ok) + color('pass', ' %s') + color(test.speed, ' (%dms)');
+	        base.consoleLog(fmt, test.title, test.duration);
+	      }
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test) {
+	      base.consoleLog(indent() + color('fail', '  %d) %s'), ++n, test.title);
+	    });
+	    runner.once(EVENT_RUN_END, self.epilogue.bind(self));
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(Spec, base);
+	  Spec.description = 'hierarchical & verbose [default]';
+	});
+
+	var nyan = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Nyan
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var inherits = utils.inherits;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  /**
+	   * Expose `Dot`.
+	   */
+
+	  module.exports = NyanCat;
+	  /**
+	   * Constructs a new `Nyan` reporter instance.
+	   *
+	   * @public
+	   * @class Nyan
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function NyanCat(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var width = base.window.width * 0.75 | 0;
+	    var nyanCatWidth = this.nyanCatWidth = 11;
+	    this.colorIndex = 0;
+	    this.numberOfLines = 4;
+	    this.rainbowColors = self.generateColors();
+	    this.scoreboardWidth = 5;
+	    this.tick = 0;
+	    this.trajectories = [[], [], [], []];
+	    this.trajectoryWidthMax = width - nyanCatWidth;
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      base.cursor.hide();
+	      self.draw();
+	    });
+	    runner.on(EVENT_TEST_PENDING, function () {
+	      self.draw();
+	    });
+	    runner.on(EVENT_TEST_PASS, function () {
+	      self.draw();
+	    });
+	    runner.on(EVENT_TEST_FAIL, function () {
+	      self.draw();
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      base.cursor.show();
+
+	      for (var i = 0; i < self.numberOfLines; i++) {
+	        write('\n');
+	      }
+
+	      self.epilogue();
+	    });
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(NyanCat, base);
+	  /**
+	   * Draw the nyan cat
+	   *
+	   * @private
+	   */
+
+	  NyanCat.prototype.draw = function () {
+	    this.appendRainbow();
+	    this.drawScoreboard();
+	    this.drawRainbow();
+	    this.drawNyanCat();
+	    this.tick = !this.tick;
+	  };
+	  /**
+	   * Draw the "scoreboard" showing the number
+	   * of passes, failures and pending tests.
+	   *
+	   * @private
+	   */
+
+
+	  NyanCat.prototype.drawScoreboard = function () {
+	    var stats = this.stats;
+
+	    function draw(type, n) {
+	      write(' ');
+	      write(base.color(type, n));
+	      write('\n');
+	    }
+
+	    draw('green', stats.passes);
+	    draw('fail', stats.failures);
+	    draw('pending', stats.pending);
+	    write('\n');
+	    this.cursorUp(this.numberOfLines);
+	  };
+	  /**
+	   * Append the rainbow.
+	   *
+	   * @private
+	   */
+
+
+	  NyanCat.prototype.appendRainbow = function () {
+	    var segment = this.tick ? '_' : '-';
+	    var rainbowified = this.rainbowify(segment);
+
+	    for (var index = 0; index < this.numberOfLines; index++) {
+	      var trajectory = this.trajectories[index];
+
+	      if (trajectory.length >= this.trajectoryWidthMax) {
+	        trajectory.shift();
+	      }
+
+	      trajectory.push(rainbowified);
+	    }
+	  };
+	  /**
+	   * Draw the rainbow.
+	   *
+	   * @private
+	   */
+
+
+	  NyanCat.prototype.drawRainbow = function () {
+	    var self = this;
+	    this.trajectories.forEach(function (line) {
+	      write("\x1B[" + self.scoreboardWidth + 'C');
+	      write(line.join(''));
+	      write('\n');
+	    });
+	    this.cursorUp(this.numberOfLines);
+	  };
+	  /**
+	   * Draw the nyan cat
+	   *
+	   * @private
+	   */
+
+
+	  NyanCat.prototype.drawNyanCat = function () {
+	    var self = this;
+	    var startWidth = this.scoreboardWidth + this.trajectories[0].length;
+	    var dist = "\x1B[" + startWidth + 'C';
+	    var padding = '';
+	    write(dist);
+	    write('_,------,');
+	    write('\n');
+	    write(dist);
+	    padding = self.tick ? '  ' : '   ';
+	    write('_|' + padding + '/\\_/\\ ');
+	    write('\n');
+	    write(dist);
+	    padding = self.tick ? '_' : '__';
+	    var tail = self.tick ? '~' : '^';
+	    write(tail + '|' + padding + this.face() + ' ');
+	    write('\n');
+	    write(dist);
+	    padding = self.tick ? ' ' : '  ';
+	    write(padding + '""  "" ');
+	    write('\n');
+	    this.cursorUp(this.numberOfLines);
+	  };
+	  /**
+	   * Draw nyan cat face.
+	   *
+	   * @private
+	   * @return {string}
+	   */
+
+
+	  NyanCat.prototype.face = function () {
+	    var stats = this.stats;
+
+	    if (stats.failures) {
+	      return '( x .x)';
+	    } else if (stats.pending) {
+	      return '( o .o)';
+	    } else if (stats.passes) {
+	      return '( ^ .^)';
+	    }
+
+	    return '( - .-)';
+	  };
+	  /**
+	   * Move cursor up `n`.
+	   *
+	   * @private
+	   * @param {number} n
+	   */
+
+
+	  NyanCat.prototype.cursorUp = function (n) {
+	    write("\x1B[" + n + 'A');
+	  };
+	  /**
+	   * Move cursor down `n`.
+	   *
+	   * @private
+	   * @param {number} n
+	   */
+
+
+	  NyanCat.prototype.cursorDown = function (n) {
+	    write("\x1B[" + n + 'B');
+	  };
+	  /**
+	   * Generate rainbow colors.
+	   *
+	   * @private
+	   * @return {Array}
+	   */
+
+
+	  NyanCat.prototype.generateColors = function () {
+	    var colors = [];
+
+	    for (var i = 0; i < 6 * 7; i++) {
+	      var pi3 = Math.floor(Math.PI / 3);
+	      var n = i * (1.0 / 6);
+	      var r = Math.floor(3 * Math.sin(n) + 3);
+	      var g = Math.floor(3 * Math.sin(n + 2 * pi3) + 3);
+	      var b = Math.floor(3 * Math.sin(n + 4 * pi3) + 3);
+	      colors.push(36 * r + 6 * g + b + 16);
+	    }
+
+	    return colors;
+	  };
+	  /**
+	   * Apply rainbow to the given `str`.
+	   *
+	   * @private
+	   * @param {string} str
+	   * @return {string}
+	   */
+
+
+	  NyanCat.prototype.rainbowify = function (str) {
+	    if (!base.useColors) {
+	      return str;
+	    }
+
+	    var color = this.rainbowColors[this.colorIndex % this.rainbowColors.length];
+	    this.colorIndex += 1;
+	    return "\x1B[38;5;" + color + 'm' + str + "\x1B[0m";
+	  };
+	  /**
+	   * Stdout helper.
+	   *
+	   * @param {string} string A message to write to stdout.
+	   */
+
+
+	  function write(string) {
+	    process$4.stdout.write(string);
+	  }
+
+	  NyanCat.description = '"nyan cat"';
+	});
+
+	var xunit = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module XUnit
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var createUnsupportedError = errors.createUnsupportedError;
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	  var STATE_FAILED = runnable.constants.STATE_FAILED;
+	  var inherits = utils.inherits;
+	  var escape = utils.escape;
+	  /**
+	   * Save timer references to avoid Sinon interfering (see GH-237).
+	   */
+
+	  var Date = commonjsGlobal.Date;
+	  /**
+	   * Expose `XUnit`.
+	   */
+
+	  module.exports = XUnit;
+	  /**
+	   * Constructs a new `XUnit` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function XUnit(runner, options) {
+	    base.call(this, runner, options);
+	    var stats = this.stats;
+	    var tests = [];
+	    var self = this; // the name of the test suite, as it will appear in the resulting XML file
+
+	    var suiteName; // the default name of the test suite if none is provided
+
+	    var DEFAULT_SUITE_NAME = 'Mocha Tests';
+
+	    if (options && options.reporterOptions) {
+	      if (options.reporterOptions.output) {
+	        {
+	          throw createUnsupportedError('file output not supported in browser');
+	        }
+	      } // get the suite name from the reporter options (if provided)
+
+
+	      suiteName = options.reporterOptions.suiteName;
+	    } // fall back to the default suite name
+
+
+	    suiteName = suiteName || DEFAULT_SUITE_NAME;
+	    runner.on(EVENT_TEST_PENDING, function (test) {
+	      tests.push(test);
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      tests.push(test);
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test) {
+	      tests.push(test);
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      self.write(tag('testsuite', {
+	        name: suiteName,
+	        tests: stats.tests,
+	        failures: 0,
+	        errors: stats.failures,
+	        skipped: stats.tests - stats.failures - stats.passes,
+	        timestamp: new Date().toUTCString(),
+	        time: stats.duration / 1000 || 0
+	      }, false));
+	      tests.forEach(function (t) {
+	        self.test(t);
+	      });
+	      self.write('</testsuite>');
+	    });
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(XUnit, base);
+	  /**
+	   * Override done to close the stream (if it's a file).
+	   *
+	   * @param failures
+	   * @param {Function} fn
+	   */
+
+	  XUnit.prototype.done = function (failures, fn) {
+	    if (this.fileStream) {
+	      this.fileStream.end(function () {
+	        fn(failures);
+	      });
+	    } else {
+	      fn(failures);
+	    }
+	  };
+	  /**
+	   * Write out the given line.
+	   *
+	   * @param {string} line
+	   */
+
+
+	  XUnit.prototype.write = function (line) {
+	    if (this.fileStream) {
+	      this.fileStream.write(line + '\n');
+	    } else if (_typeof(process$4) === 'object' && process$4.stdout) {
+	      process$4.stdout.write(line + '\n');
+	    } else {
+	      base.consoleLog(line);
+	    }
+	  };
+	  /**
+	   * Output tag for the given `test.`
+	   *
+	   * @param {Test} test
+	   */
+
+
+	  XUnit.prototype.test = function (test) {
+	    base.useColors = false;
+	    var attrs = {
+	      classname: test.parent.fullTitle(),
+	      name: test.title,
+	      time: test.duration / 1000 || 0
+	    };
+
+	    if (test.state === STATE_FAILED) {
+	      var err = test.err;
+	      var diff = !base.hideDiff && base.showDiff(err) ? '\n' + base.generateDiff(err.actual, err.expected) : '';
+	      this.write(tag('testcase', attrs, false, tag('failure', {}, false, escape(err.message) + escape(diff) + '\n' + escape(err.stack))));
+	    } else if (test.isPending()) {
+	      this.write(tag('testcase', attrs, false, tag('skipped', {}, true)));
+	    } else {
+	      this.write(tag('testcase', attrs, true));
+	    }
+	  };
+	  /**
+	   * HTML tag helper.
+	   *
+	   * @param name
+	   * @param attrs
+	   * @param close
+	   * @param content
+	   * @return {string}
+	   */
+
+
+	  function tag(name, attrs, close, content) {
+	    var end = close ? '/>' : '>';
+	    var pairs = [];
+	    var tag;
+
+	    for (var key in attrs) {
+	      if (Object.prototype.hasOwnProperty.call(attrs, key)) {
+	        pairs.push(key + '="' + escape(attrs[key]) + '"');
+	      }
+	    }
+
+	    tag = '<' + name + (pairs.length ? ' ' + pairs.join(' ') : '') + end;
+
+	    if (content) {
+	      tag += content + '</' + name + end;
+	    }
+
+	    return tag;
+	  }
+
+	  XUnit.description = 'XUnit-compatible XML output';
+	});
+
+	var markdown = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Markdown
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+	  var EVENT_SUITE_END = constants.EVENT_SUITE_END;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  /**
+	   * Constants
+	   */
+
+	  var SUITE_PREFIX = '$';
+	  /**
+	   * Expose `Markdown`.
+	   */
+
+	  module.exports = Markdown;
+	  /**
+	   * Constructs a new `Markdown` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Markdown(runner, options) {
+	    base.call(this, runner, options);
+	    var level = 0;
+	    var buf = '';
+
+	    function title(str) {
+	      return Array(level).join('#') + ' ' + str;
+	    }
+
+	    function mapTOC(suite, obj) {
+	      var ret = obj;
+	      var key = SUITE_PREFIX + suite.title;
+	      obj = obj[key] = obj[key] || {
+	        suite: suite
+	      };
+	      suite.suites.forEach(function (suite) {
+	        mapTOC(suite, obj);
+	      });
+	      return ret;
+	    }
+
+	    function stringifyTOC(obj, level) {
+	      ++level;
+	      var buf = '';
+	      var link;
+
+	      for (var key in obj) {
+	        if (key === 'suite') {
+	          continue;
+	        }
+
+	        if (key !== SUITE_PREFIX) {
+	          link = ' - [' + key.substring(1) + ']';
+	          link += '(#' + utils.slug(obj[key].suite.fullTitle()) + ')\n';
+	          buf += Array(level).join('  ') + link;
+	        }
+
+	        buf += stringifyTOC(obj[key], level);
+	      }
+
+	      return buf;
+	    }
+
+	    function generateTOC(suite) {
+	      var obj = mapTOC(suite, {});
+	      return stringifyTOC(obj, 0);
+	    }
+
+	    generateTOC(runner.suite);
+	    runner.on(EVENT_SUITE_BEGIN, function (suite) {
+	      ++level;
+	      var slug = utils.slug(suite.fullTitle());
+	      buf += '<a name="' + slug + '"></a>' + '\n';
+	      buf += title(suite.title) + '\n';
+	    });
+	    runner.on(EVENT_SUITE_END, function () {
+	      --level;
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      var code = utils.clean(test.body);
+	      buf += test.title + '.\n';
+	      buf += '\n```js\n';
+	      buf += code + '\n';
+	      buf += '```\n\n';
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      process$4.stdout.write('# TOC\n');
+	      process$4.stdout.write(generateTOC(runner.suite));
+	      process$4.stdout.write(buf);
+	    });
+	  }
+
+	  Markdown.description = 'GitHub Flavored Markdown';
+	});
+
+	var progress = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Progress
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_TEST_END = constants.EVENT_TEST_END;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var inherits = utils.inherits;
+	  var color = base.color;
+	  var cursor = base.cursor;
+	  /**
+	   * Expose `Progress`.
+	   */
+
+	  module.exports = Progress;
+	  /**
+	   * General progress bar color.
+	   */
+
+	  base.colors.progress = 90;
+	  /**
+	   * Constructs a new `Progress` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Progress(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var width = base.window.width * 0.5 | 0;
+	    var total = runner.total;
+	    var complete = 0;
+	    var lastN = -1; // default chars
+
+	    options = options || {};
+	    var reporterOptions = options.reporterOptions || {};
+	    options.open = reporterOptions.open || '[';
+	    options.complete = reporterOptions.complete || '▬';
+	    options.incomplete = reporterOptions.incomplete || base.symbols.dot;
+	    options.close = reporterOptions.close || ']';
+	    options.verbose = reporterOptions.verbose || false; // tests started
+
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      process$4.stdout.write('\n');
+	      cursor.hide();
+	    }); // tests complete
+
+	    runner.on(EVENT_TEST_END, function () {
+	      complete++;
+	      var percent = complete / total;
+	      var n = width * percent | 0;
+	      var i = width - n;
+
+	      if (n === lastN && !options.verbose) {
+	        // Don't re-render the line if it hasn't changed
+	        return;
+	      }
+
+	      lastN = n;
+	      cursor.CR();
+	      process$4.stdout.write("\x1B[J");
+	      process$4.stdout.write(color('progress', '  ' + options.open));
+	      process$4.stdout.write(Array(n).join(options.complete));
+	      process$4.stdout.write(Array(i).join(options.incomplete));
+	      process$4.stdout.write(color('progress', options.close));
+
+	      if (options.verbose) {
+	        process$4.stdout.write(color('progress', ' ' + complete + ' of ' + total));
+	      }
+	    }); // tests are complete, output some stats
+	    // and the failures if any
+
+	    runner.once(EVENT_RUN_END, function () {
+	      cursor.show();
+	      process$4.stdout.write('\n');
+	      self.epilogue();
+	    });
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(Progress, base);
+	  Progress.description = 'a progress bar';
+	});
+
+	var landing = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module Landing
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var inherits = utils.inherits;
+	  var constants = runner.constants;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  var EVENT_TEST_END = constants.EVENT_TEST_END;
+	  var STATE_FAILED = runnable.constants.STATE_FAILED;
+	  var cursor = base.cursor;
+	  var color = base.color;
+	  /**
+	   * Expose `Landing`.
+	   */
+
+	  module.exports = Landing;
+	  /**
+	   * Airplane color.
+	   */
+
+	  base.colors.plane = 0;
+	  /**
+	   * Airplane crash color.
+	   */
+
+	  base.colors['plane crash'] = 31;
+	  /**
+	   * Runway color.
+	   */
+
+	  base.colors.runway = 90;
+	  /**
+	   * Constructs a new `Landing` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function Landing(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var width = base.window.width * 0.75 | 0;
+	    var stream = process$4.stdout;
+	    var plane = color('plane', '✈');
+	    var crashed = -1;
+	    var n = 0;
+	    var total = 0;
+
+	    function runway() {
+	      var buf = Array(width).join('-');
+	      return '  ' + color('runway', buf);
+	    }
+
+	    runner.on(EVENT_RUN_BEGIN, function () {
+	      stream.write('\n\n\n  ');
+	      cursor.hide();
+	    });
+	    runner.on(EVENT_TEST_END, function (test) {
+	      // check if the plane crashed
+	      var col = crashed === -1 ? width * ++n / ++total | 0 : crashed; // show the crash
+
+	      if (test.state === STATE_FAILED) {
+	        plane = color('plane crash', '✈');
+	        crashed = col;
+	      } // render landing strip
+
+
+	      stream.write("\x1B[" + (width + 1) + "D\x1B[2A");
+	      stream.write(runway());
+	      stream.write('\n  ');
+	      stream.write(color('runway', Array(col).join('⋅')));
+	      stream.write(plane);
+	      stream.write(color('runway', Array(width - col).join('⋅') + '\n'));
+	      stream.write(runway());
+	      stream.write("\x1B[0m");
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      cursor.show();
+	      process$4.stdout.write('\n');
+	      self.epilogue();
+	    }); // if cursor is hidden when we ctrl-C, then it will remain hidden unless...
+
+	    process$4.once('SIGINT', function () {
+	      cursor.show();
+	      nextTick$1(function () {
+	        process$4.kill(process$4.pid, 'SIGINT');
+	      });
+	    });
+	  }
+	  /**
+	   * Inherit from `Base.prototype`.
+	   */
+
+
+	  inherits(Landing, base);
+	  Landing.description = 'Unicode landing strip';
+	});
+
+	var jsonStream = createCommonjsModule(function (module, exports) {
+	  /**
+	   * @module JSONStream
+	   */
+
+	  /**
+	   * Module dependencies.
+	   */
+
+	  var constants = runner.constants;
+	  var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	  var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	  var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	  var EVENT_RUN_END = constants.EVENT_RUN_END;
+	  /**
+	   * Expose `JSONStream`.
+	   */
+
+	  module.exports = JSONStream;
+	  /**
+	   * Constructs a new `JSONStream` reporter instance.
+	   *
+	   * @public
+	   * @class
+	   * @memberof Mocha.reporters
+	   * @extends Mocha.reporters.Base
+	   * @param {Runner} runner - Instance triggers reporter actions.
+	   * @param {Object} [options] - runner options
+	   */
+
+	  function JSONStream(runner, options) {
+	    base.call(this, runner, options);
+	    var self = this;
+	    var total = runner.total;
+	    runner.once(EVENT_RUN_BEGIN, function () {
+	      writeEvent(['start', {
+	        total: total
+	      }]);
+	    });
+	    runner.on(EVENT_TEST_PASS, function (test) {
+	      writeEvent(['pass', clean(test)]);
+	    });
+	    runner.on(EVENT_TEST_FAIL, function (test, err) {
+	      test = clean(test);
+	      test.err = err.message;
+	      test.stack = err.stack || null;
+	      writeEvent(['fail', test]);
+	    });
+	    runner.once(EVENT_RUN_END, function () {
+	      writeEvent(['end', self.stats]);
+	    });
+	  }
+	  /**
+	   * Mocha event to be written to the output stream.
+	   * @typedef {Array} JSONStream~MochaEvent
+	   */
+
+	  /**
+	   * Writes Mocha event to reporter output stream.
+	   *
+	   * @private
+	   * @param {JSONStream~MochaEvent} event - Mocha event to be output.
+	   */
+
+
+	  function writeEvent(event) {
+	    process$4.stdout.write(JSON.stringify(event) + '\n');
+	  }
+	  /**
+	   * Returns an object literal representation of `test`
+	   * free of cyclic properties, etc.
+	   *
+	   * @private
+	   * @param {Test} test - Instance used as data source.
+	   * @return {Object} object containing pared-down test instance data
+	   */
+
+
+	  function clean(test) {
+	    return {
+	      title: test.title,
+	      fullTitle: test.fullTitle(),
+	      file: test.file,
+	      duration: test.duration,
+	      currentRetry: test.currentRetry(),
+	      speed: test.speed
+	    };
+	  }
+
+	  JSONStream.description = 'newline delimited JSON events';
+	});
+
+	var reporters = createCommonjsModule(function (module, exports) {
+	  // for dynamic (try/catch) requires, which Browserify doesn't handle.
+
+	  exports.Base = exports.base = base;
+	  exports.Dot = exports.dot = dot;
+	  exports.Doc = exports.doc = doc;
+	  exports.TAP = exports.tap = tap;
+	  exports.JSON = exports.json = json;
+	  exports.HTML = exports.html = html;
+	  exports.List = exports.list = list;
+	  exports.Min = exports.min = min;
+	  exports.Spec = exports.spec = spec;
+	  exports.Nyan = exports.nyan = nyan;
+	  exports.XUnit = exports.xunit = xunit;
+	  exports.Markdown = exports.markdown = markdown;
+	  exports.Progress = exports.progress = progress;
+	  exports.Landing = exports.landing = landing;
+	  exports.JSONStream = exports['json-stream'] = jsonStream;
+	});
+
+	var name = "mocha";
+	var version = "9.1.2";
+	var homepage = "https://mochajs.org/";
+	var notifyLogo = "https://ibin.co/4QuRuGjXvl36.png";
+	var _package = {
+		name: name,
+		version: version,
+		homepage: homepage,
+		notifyLogo: notifyLogo
+	};
+
+	var _package$1 = /*#__PURE__*/Object.freeze({
+		__proto__: null,
+		name: name,
+		version: version,
+		homepage: homepage,
+		notifyLogo: notifyLogo,
+		'default': _package
+	});
+
+	var require$$9 = getCjsExportFromNamespace(_package$1);
+
+	/**
+	 * Web Notifications module.
+	 * @module Growl
+	 */
+
+	/**
+	 * Save timer references to avoid Sinon interfering (see GH-237).
+	 */
+
+
+	var Date$3 = commonjsGlobal.Date;
+	var setTimeout$2 = commonjsGlobal.setTimeout;
+	var EVENT_RUN_END$1 = runner.constants.EVENT_RUN_END;
+	var isBrowser = utils.isBrowser;
+	/**
+	 * Checks if browser notification support exists.
+	 *
+	 * @public
+	 * @see {@link https://caniuse.com/#feat=notifications|Browser support (notifications)}
+	 * @see {@link https://caniuse.com/#feat=promises|Browser support (promises)}
+	 * @see {@link Mocha#growl}
+	 * @see {@link Mocha#isGrowlCapable}
+	 * @return {boolean} whether browser notification support exists
+	 */
+
+	var isCapable = function isCapable() {
+	  var hasNotificationSupport = ('Notification' in window);
+	  var hasPromiseSupport = typeof Promise === 'function';
+	  return isBrowser() && hasNotificationSupport && hasPromiseSupport;
+	};
+	/**
+	 * Implements browser notifications as a pseudo-reporter.
+	 *
+	 * @public
+	 * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/notification|Notification API}
+	 * @see {@link https://developers.google.com/web/fundamentals/push-notifications/display-a-notification|Displaying a Notification}
+	 * @see {@link Growl#isPermitted}
+	 * @see {@link Mocha#_growl}
+	 * @param {Runner} runner - Runner instance.
+	 */
+
+
+	var notify = function notify(runner) {
+	  var promise = isPermitted();
+	  /**
+	   * Attempt notification.
+	   */
+
+	  var sendNotification = function sendNotification() {
+	    // If user hasn't responded yet... "No notification for you!" (Seinfeld)
+	    Promise.race([promise, Promise.resolve(undefined)]).then(canNotify).then(function () {
+	      display(runner);
+	    })["catch"](notPermitted);
+	  };
+
+	  runner.once(EVENT_RUN_END$1, sendNotification);
+	};
+	/**
+	 * Checks if browser notification is permitted by user.
+	 *
+	 * @private
+	 * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/Notification/permission|Notification.permission}
+	 * @see {@link Mocha#growl}
+	 * @see {@link Mocha#isGrowlPermitted}
+	 * @returns {Promise<boolean>} promise determining if browser notification
+	 *     permissible when fulfilled.
+	 */
+
+
+	function isPermitted() {
+	  var permitted = {
+	    granted: function allow() {
+	      return Promise.resolve(true);
+	    },
+	    denied: function deny() {
+	      return Promise.resolve(false);
+	    },
+	    "default": function ask() {
+	      return Notification.requestPermission().then(function (permission) {
+	        return permission === 'granted';
+	      });
+	    }
+	  };
+	  return permitted[Notification.permission]();
+	}
+	/**
+	 * @summary
+	 * Determines if notification should proceed.
+	 *
+	 * @description
+	 * Notification shall <strong>not</strong> proceed unless `value` is true.
+	 *
+	 * `value` will equal one of:
+	 * <ul>
+	 *   <li><code>true</code> (from `isPermitted`)</li>
+	 *   <li><code>false</code> (from `isPermitted`)</li>
+	 *   <li><code>undefined</code> (from `Promise.race`)</li>
+	 * </ul>
+	 *
+	 * @private
+	 * @param {boolean|undefined} value - Determines if notification permissible.
+	 * @returns {Promise<undefined>} Notification can proceed
+	 */
+
+
+	function canNotify(value) {
+	  if (!value) {
+	    var why = value === false ? 'blocked' : 'unacknowledged';
+	    var reason = 'not permitted by user (' + why + ')';
+	    return Promise.reject(new Error(reason));
+	  }
+
+	  return Promise.resolve();
+	}
+	/**
+	 * Displays the notification.
+	 *
+	 * @private
+	 * @param {Runner} runner - Runner instance.
+	 */
+
+
+	function display(runner) {
+	  var stats = runner.stats;
+	  var symbol = {
+	    cross: "\u274C",
+	    tick: "\u2705"
+	  };
+	  var logo = require$$9.notifyLogo;
+
+	  var _message;
+
+	  var message;
+	  var title;
+
+	  if (stats.failures) {
+	    _message = stats.failures + ' of ' + stats.tests + ' tests failed';
+	    message = symbol.cross + ' ' + _message;
+	    title = 'Failed';
+	  } else {
+	    _message = stats.passes + ' tests passed in ' + stats.duration + 'ms';
+	    message = symbol.tick + ' ' + _message;
+	    title = 'Passed';
+	  } // Send notification
+
+
+	  var options = {
+	    badge: logo,
+	    body: message,
+	    dir: 'ltr',
+	    icon: logo,
+	    lang: 'en-US',
+	    name: 'mocha',
+	    requireInteraction: false,
+	    timestamp: Date$3.now()
+	  };
+	  var notification = new Notification(title, options); // Autoclose after brief delay (makes various browsers act same)
+
+	  var FORCE_DURATION = 4000;
+	  setTimeout$2(notification.close.bind(notification), FORCE_DURATION);
+	}
+	/**
+	 * As notifications are tangential to our purpose, just log the error.
+	 *
+	 * @private
+	 * @param {Error} err - Why notification didn't happen.
+	 */
 
-    var canonicalizedObj;
 
-    if ('[object Array]' === objectPrototypeToString.call(obj)) {
-      stack.push(obj);
-      canonicalizedObj = new Array(obj.length);
-      replacementStack.push(canonicalizedObj);
-
-      for (i = 0; i < obj.length; i += 1) {
-        canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack, replacer, key);
-      }
-
-      stack.pop();
-      replacementStack.pop();
-      return canonicalizedObj;
-    }
-
-    if (obj && obj.toJSON) {
-      obj = obj.toJSON();
-    }
-
-    if (_typeof(obj) === 'object' && obj !== null) {
-      stack.push(obj);
-      canonicalizedObj = {};
-      replacementStack.push(canonicalizedObj);
-
-      var sortedKeys = [],
-          _key;
-
-      for (_key in obj) {
-        /* istanbul ignore else */
-        if (obj.hasOwnProperty(_key)) {
-          sortedKeys.push(_key);
-        }
-      }
-
-      sortedKeys.sort();
-
-      for (i = 0; i < sortedKeys.length; i += 1) {
-        _key = sortedKeys[i];
-        canonicalizedObj[_key] = canonicalize(obj[_key], stack, replacementStack, replacer, _key);
-      }
-
-      stack.pop();
-      replacementStack.pop();
-    } else {
-      canonicalizedObj = obj;
-    }
-
-    return canonicalizedObj;
-  }
-
-  var arrayDiff = new Diff();
-
-  arrayDiff.tokenize = function (value) {
-    return value.slice();
-  };
-
-  arrayDiff.join = arrayDiff.removeEmpty = function (value) {
-    return value;
-  };
-
-  function diffArrays(oldArr, newArr, callback) {
-    return arrayDiff.diff(oldArr, newArr, callback);
-  }
-
-  function parsePatch(uniDiff) {
-    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
-    var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
-        delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
-        list = [],
-        i = 0;
-
-    function parseIndex() {
-      var index = {};
-      list.push(index); // Parse diff metadata
-
-      while (i < diffstr.length) {
-        var line = diffstr[i]; // File header found, end parsing diff metadata
-
-        if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
-          break;
-        } // Diff index
-
-
-        var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
-
-        if (header) {
-          index.index = header[1];
-        }
-
-        i++;
-      } // Parse file headers if they are defined. Unified diff requires them, but
-      // there's no technical issues to have an isolated hunk without file header
-
-
-      parseFileHeader(index);
-      parseFileHeader(index); // Parse hunks
-
-      index.hunks = [];
-
-      while (i < diffstr.length) {
-        var _line = diffstr[i];
-
-        if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
-          break;
-        } else if (/^@@/.test(_line)) {
-          index.hunks.push(parseHunk());
-        } else if (_line && options.strict) {
-          // Ignore unexpected content unless in strict mode
-          throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
-        } else {
-          i++;
-        }
-      }
-    } // Parses the --- and +++ headers, if none are found, no lines
-    // are consumed.
-
-
-    function parseFileHeader(index) {
-      var fileHeader = /^(---|\+\+\+)\s+(.*)$/.exec(diffstr[i]);
-
-      if (fileHeader) {
-        var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
-        var data = fileHeader[2].split('\t', 2);
-        var fileName = data[0].replace(/\\\\/g, '\\');
-
-        if (/^".*"$/.test(fileName)) {
-          fileName = fileName.substr(1, fileName.length - 2);
-        }
-
-        index[keyPrefix + 'FileName'] = fileName;
-        index[keyPrefix + 'Header'] = (data[1] || '').trim();
-        i++;
-      }
-    } // Parses a hunk
-    // This assumes that we are at the start of a hunk.
-
-
-    function parseHunk() {
-      var chunkHeaderIndex = i,
-          chunkHeaderLine = diffstr[i++],
-          chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
-      var hunk = {
-        oldStart: +chunkHeader[1],
-        oldLines: +chunkHeader[2] || 1,
-        newStart: +chunkHeader[3],
-        newLines: +chunkHeader[4] || 1,
-        lines: [],
-        linedelimiters: []
-      };
-      var addCount = 0,
-          removeCount = 0;
-
-      for (; i < diffstr.length; i++) {
-        // Lines starting with '---' could be mistaken for the "remove line" operation
-        // But they could be the header for the next file. Therefore prune such cases out.
-        if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
-          break;
-        }
-
-        var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];
-
-        if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
-          hunk.lines.push(diffstr[i]);
-          hunk.linedelimiters.push(delimiters[i] || '\n');
-
-          if (operation === '+') {
-            addCount++;
-          } else if (operation === '-') {
-            removeCount++;
-          } else if (operation === ' ') {
-            addCount++;
-            removeCount++;
-          }
-        } else {
-          break;
-        }
-      } // Handle the empty block count case
-
-
-      if (!addCount && hunk.newLines === 1) {
-        hunk.newLines = 0;
-      }
-
-      if (!removeCount && hunk.oldLines === 1) {
-        hunk.oldLines = 0;
-      } // Perform optional sanity checking
-
-
-      if (options.strict) {
-        if (addCount !== hunk.newLines) {
-          throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
-        }
-
-        if (removeCount !== hunk.oldLines) {
-          throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
-        }
-      }
-
-      return hunk;
-    }
-
-    while (i < diffstr.length) {
-      parseIndex();
-    }
-
-    return list;
-  }
-
-  // Iterator that traverses in the range of [min, max], stepping
-  // by distance from a given start position. I.e. for [0, 4], with
-  // start of 2, this will iterate 2, 3, 1, 4, 0.
-  function distanceIterator (start, minLine, maxLine) {
-    var wantForward = true,
-        backwardExhausted = false,
-        forwardExhausted = false,
-        localOffset = 1;
-    return function iterator() {
-      if (wantForward && !forwardExhausted) {
-        if (backwardExhausted) {
-          localOffset++;
-        } else {
-          wantForward = false;
-        } // Check if trying to fit beyond text length, and if not, check it fits
-        // after offset location (or desired location on first iteration)
-
-
-        if (start + localOffset <= maxLine) {
-          return localOffset;
-        }
-
-        forwardExhausted = true;
-      }
-
-      if (!backwardExhausted) {
-        if (!forwardExhausted) {
-          wantForward = true;
-        } // Check if trying to fit before text beginning, and if not, check it fits
-        // before offset location
-
-
-        if (minLine <= start - localOffset) {
-          return -localOffset++;
-        }
-
-        backwardExhausted = true;
-        return iterator();
-      } // We tried to fit hunk before text beginning and beyond text length, then
-      // hunk can't fit on the text. Return undefined
-
-    };
-  }
-
-  function applyPatch(source, uniDiff) {
-    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
-
-    if (typeof uniDiff === 'string') {
-      uniDiff = parsePatch(uniDiff);
-    }
-
-    if (Array.isArray(uniDiff)) {
-      if (uniDiff.length > 1) {
-        throw new Error('applyPatch only works with a single input.');
-      }
-
-      uniDiff = uniDiff[0];
-    } // Apply the diff to the input
-
-
-    var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
-        delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
-        hunks = uniDiff.hunks,
-        compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) {
-      return line === patchContent;
-    },
-        errorCount = 0,
-        fuzzFactor = options.fuzzFactor || 0,
-        minLine = 0,
-        offset = 0,
-        removeEOFNL,
-        addEOFNL;
-    /**
-     * Checks if the hunk exactly fits on the provided location
-     */
-
-
-    function hunkFits(hunk, toPos) {
-      for (var j = 0; j < hunk.lines.length; j++) {
-        var line = hunk.lines[j],
-            operation = line.length > 0 ? line[0] : ' ',
-            content = line.length > 0 ? line.substr(1) : line;
-
-        if (operation === ' ' || operation === '-') {
-          // Context sanity check
-          if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
-            errorCount++;
-
-            if (errorCount > fuzzFactor) {
-              return false;
-            }
-          }
-
-          toPos++;
-        }
-      }
-
-      return true;
-    } // Search best fit offsets for each hunk based on the previous ones
-
-
-    for (var i = 0; i < hunks.length; i++) {
-      var hunk = hunks[i],
-          maxLine = lines.length - hunk.oldLines,
-          localOffset = 0,
-          toPos = offset + hunk.oldStart - 1;
-      var iterator = distanceIterator(toPos, minLine, maxLine);
-
-      for (; localOffset !== undefined; localOffset = iterator()) {
-        if (hunkFits(hunk, toPos + localOffset)) {
-          hunk.offset = offset += localOffset;
-          break;
-        }
-      }
-
-      if (localOffset === undefined) {
-        return false;
-      } // Set lower text limit to end of the current hunk, so next ones don't try
-      // to fit over already patched text
-
-
-      minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
-    } // Apply patch hunks
-
-
-    var diffOffset = 0;
-
-    for (var _i = 0; _i < hunks.length; _i++) {
-      var _hunk = hunks[_i],
-          _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;
-
-      diffOffset += _hunk.newLines - _hunk.oldLines;
-
-      if (_toPos < 0) {
-        // Creating a new file
-        _toPos = 0;
-      }
-
-      for (var j = 0; j < _hunk.lines.length; j++) {
-        var line = _hunk.lines[j],
-            operation = line.length > 0 ? line[0] : ' ',
-            content = line.length > 0 ? line.substr(1) : line,
-            delimiter = _hunk.linedelimiters[j];
-
-        if (operation === ' ') {
-          _toPos++;
-        } else if (operation === '-') {
-          lines.splice(_toPos, 1);
-          delimiters.splice(_toPos, 1);
-          /* istanbul ignore else */
-        } else if (operation === '+') {
-          lines.splice(_toPos, 0, content);
-          delimiters.splice(_toPos, 0, delimiter);
-          _toPos++;
-        } else if (operation === '\\') {
-          var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;
-
-          if (previousOperation === '+') {
-            removeEOFNL = true;
-          } else if (previousOperation === '-') {
-            addEOFNL = true;
-          }
-        }
-      }
-    } // Handle EOFNL insertion/removal
-
-
-    if (removeEOFNL) {
-      while (!lines[lines.length - 1]) {
-        lines.pop();
-        delimiters.pop();
-      }
-    } else if (addEOFNL) {
-      lines.push('');
-      delimiters.push('\n');
-    }
-
-    for (var _k = 0; _k < lines.length - 1; _k++) {
-      lines[_k] = lines[_k] + delimiters[_k];
-    }
-
-    return lines.join('');
-  } // Wrapper that supports multiple file patches via callbacks.
-
-  function applyPatches(uniDiff, options) {
-    if (typeof uniDiff === 'string') {
-      uniDiff = parsePatch(uniDiff);
-    }
-
-    var currentIndex = 0;
-
-    function processIndex() {
-      var index = uniDiff[currentIndex++];
-
-      if (!index) {
-        return options.complete();
-      }
-
-      options.loadFile(index, function (err, data) {
-        if (err) {
-          return options.complete(err);
-        }
-
-        var updatedContent = applyPatch(data, index, options);
-        options.patched(index, updatedContent, function (err) {
-          if (err) {
-            return options.complete(err);
-          }
-
-          processIndex();
-        });
-      });
-    }
-
-    processIndex();
-  }
-
-  function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
-    if (!options) {
-      options = {};
-    }
-
-    if (typeof options.context === 'undefined') {
-      options.context = 4;
-    }
-
-    var diff = diffLines(oldStr, newStr, options);
-    diff.push({
-      value: '',
-      lines: []
-    }); // Append an empty value to make cleanup easier
-
-    function contextLines(lines) {
-      return lines.map(function (entry) {
-        return ' ' + entry;
-      });
-    }
-
-    var hunks = [];
-    var oldRangeStart = 0,
-        newRangeStart = 0,
-        curRange = [],
-        oldLine = 1,
-        newLine = 1;
-
-    var _loop = function _loop(i) {
-      var current = diff[i],
-          lines = current.lines || current.value.replace(/\n$/, '').split('\n');
-      current.lines = lines;
-
-      if (current.added || current.removed) {
-        var _curRange;
-
-        // If we have previous context, start with that
-        if (!oldRangeStart) {
-          var prev = diff[i - 1];
-          oldRangeStart = oldLine;
-          newRangeStart = newLine;
-
-          if (prev) {
-            curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
-            oldRangeStart -= curRange.length;
-            newRangeStart -= curRange.length;
-          }
-        } // Output our changes
-
-
-        (_curRange = curRange).push.apply(_curRange, _toConsumableArray(lines.map(function (entry) {
-          return (current.added ? '+' : '-') + entry;
-        }))); // Track the updated file position
-
-
-        if (current.added) {
-          newLine += lines.length;
-        } else {
-          oldLine += lines.length;
-        }
-      } else {
-        // Identical context lines. Track line changes
-        if (oldRangeStart) {
-          // Close out any changes that have been output (or join overlapping)
-          if (lines.length <= options.context * 2 && i < diff.length - 2) {
-            var _curRange2;
-
-            // Overlapping
-            (_curRange2 = curRange).push.apply(_curRange2, _toConsumableArray(contextLines(lines)));
-          } else {
-            var _curRange3;
-
-            // end the range and output
-            var contextSize = Math.min(lines.length, options.context);
-
-            (_curRange3 = curRange).push.apply(_curRange3, _toConsumableArray(contextLines(lines.slice(0, contextSize))));
-
-            var hunk = {
-              oldStart: oldRangeStart,
-              oldLines: oldLine - oldRangeStart + contextSize,
-              newStart: newRangeStart,
-              newLines: newLine - newRangeStart + contextSize,
-              lines: curRange
-            };
-
-            if (i >= diff.length - 2 && lines.length <= options.context) {
-              // EOF is inside this hunk
-              var oldEOFNewline = /\n$/.test(oldStr);
-              var newEOFNewline = /\n$/.test(newStr);
-              var noNlBeforeAdds = lines.length == 0 && curRange.length > hunk.oldLines;
-
-              if (!oldEOFNewline && noNlBeforeAdds) {
-                // special case: old has no eol and no trailing context; no-nl can end up before adds
-                curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
-              }
-
-              if (!oldEOFNewline && !noNlBeforeAdds || !newEOFNewline) {
-                curRange.push('\\ No newline at end of file');
-              }
-            }
-
-            hunks.push(hunk);
-            oldRangeStart = 0;
-            newRangeStart = 0;
-            curRange = [];
-          }
-        }
-
-        oldLine += lines.length;
-        newLine += lines.length;
-      }
-    };
-
-    for (var i = 0; i < diff.length; i++) {
-      _loop(i);
-    }
-
-    return {
-      oldFileName: oldFileName,
-      newFileName: newFileName,
-      oldHeader: oldHeader,
-      newHeader: newHeader,
-      hunks: hunks
-    };
-  }
-  function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
-    var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);
-    var ret = [];
-
-    if (oldFileName == newFileName) {
-      ret.push('Index: ' + oldFileName);
-    }
-
-    ret.push('===================================================================');
-    ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
-    ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
-
-    for (var i = 0; i < diff.hunks.length; i++) {
-      var hunk = diff.hunks[i];
-      ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
-      ret.push.apply(ret, hunk.lines);
-    }
-
-    return ret.join('\n') + '\n';
-  }
-  function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
-    return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
-  }
-
-  function arrayEqual(a, b) {
-    if (a.length !== b.length) {
-      return false;
-    }
-
-    return arrayStartsWith(a, b);
-  }
-  function arrayStartsWith(array, start) {
-    if (start.length > array.length) {
-      return false;
-    }
-
-    for (var i = 0; i < start.length; i++) {
-      if (start[i] !== array[i]) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  function calcLineCount(hunk) {
-    var _calcOldNewLineCount = calcOldNewLineCount(hunk.lines),
-        oldLines = _calcOldNewLineCount.oldLines,
-        newLines = _calcOldNewLineCount.newLines;
-
-    if (oldLines !== undefined) {
-      hunk.oldLines = oldLines;
-    } else {
-      delete hunk.oldLines;
-    }
-
-    if (newLines !== undefined) {
-      hunk.newLines = newLines;
-    } else {
-      delete hunk.newLines;
-    }
-  }
-  function merge(mine, theirs, base) {
-    mine = loadPatch(mine, base);
-    theirs = loadPatch(theirs, base);
-    var ret = {}; // For index we just let it pass through as it doesn't have any necessary meaning.
-    // Leaving sanity checks on this to the API consumer that may know more about the
-    // meaning in their own context.
-
-    if (mine.index || theirs.index) {
-      ret.index = mine.index || theirs.index;
-    }
-
-    if (mine.newFileName || theirs.newFileName) {
-      if (!fileNameChanged(mine)) {
-        // No header or no change in ours, use theirs (and ours if theirs does not exist)
-        ret.oldFileName = theirs.oldFileName || mine.oldFileName;
-        ret.newFileName = theirs.newFileName || mine.newFileName;
-        ret.oldHeader = theirs.oldHeader || mine.oldHeader;
-        ret.newHeader = theirs.newHeader || mine.newHeader;
-      } else if (!fileNameChanged(theirs)) {
-        // No header or no change in theirs, use ours
-        ret.oldFileName = mine.oldFileName;
-        ret.newFileName = mine.newFileName;
-        ret.oldHeader = mine.oldHeader;
-        ret.newHeader = mine.newHeader;
-      } else {
-        // Both changed... figure it out
-        ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
-        ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
-        ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
-        ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
-      }
-    }
-
-    ret.hunks = [];
-    var mineIndex = 0,
-        theirsIndex = 0,
-        mineOffset = 0,
-        theirsOffset = 0;
-
-    while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
-      var mineCurrent = mine.hunks[mineIndex] || {
-        oldStart: Infinity
-      },
-          theirsCurrent = theirs.hunks[theirsIndex] || {
-        oldStart: Infinity
-      };
-
-      if (hunkBefore(mineCurrent, theirsCurrent)) {
-        // This patch does not overlap with any of the others, yay.
-        ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
-        mineIndex++;
-        theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
-      } else if (hunkBefore(theirsCurrent, mineCurrent)) {
-        // This patch does not overlap with any of the others, yay.
-        ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
-        theirsIndex++;
-        mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
-      } else {
-        // Overlap, merge as best we can
-        var mergedHunk = {
-          oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
-          oldLines: 0,
-          newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
-          newLines: 0,
-          lines: []
-        };
-        mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
-        theirsIndex++;
-        mineIndex++;
-        ret.hunks.push(mergedHunk);
-      }
-    }
-
-    return ret;
-  }
-
-  function loadPatch(param, base) {
-    if (typeof param === 'string') {
-      if (/^@@/m.test(param) || /^Index:/m.test(param)) {
-        return parsePatch(param)[0];
-      }
-
-      if (!base) {
-        throw new Error('Must provide a base reference or pass in a patch');
-      }
-
-      return structuredPatch(undefined, undefined, base, param);
-    }
-
-    return param;
-  }
-
-  function fileNameChanged(patch) {
-    return patch.newFileName && patch.newFileName !== patch.oldFileName;
-  }
-
-  function selectField(index, mine, theirs) {
-    if (mine === theirs) {
-      return mine;
-    } else {
-      index.conflict = true;
-      return {
-        mine: mine,
-        theirs: theirs
-      };
-    }
-  }
-
-  function hunkBefore(test, check) {
-    return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
-  }
-
-  function cloneHunk(hunk, offset) {
-    return {
-      oldStart: hunk.oldStart,
-      oldLines: hunk.oldLines,
-      newStart: hunk.newStart + offset,
-      newLines: hunk.newLines,
-      lines: hunk.lines
-    };
-  }
-
-  function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
-    // This will generally result in a conflicted hunk, but there are cases where the context
-    // is the only overlap where we can successfully merge the content here.
-    var mine = {
-      offset: mineOffset,
-      lines: mineLines,
-      index: 0
-    },
-        their = {
-      offset: theirOffset,
-      lines: theirLines,
-      index: 0
-    }; // Handle any leading content
-
-    insertLeading(hunk, mine, their);
-    insertLeading(hunk, their, mine); // Now in the overlap content. Scan through and select the best changes from each.
-
-    while (mine.index < mine.lines.length && their.index < their.lines.length) {
-      var mineCurrent = mine.lines[mine.index],
-          theirCurrent = their.lines[their.index];
-
-      if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
-        // Both modified ...
-        mutualChange(hunk, mine, their);
-      } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
-        var _hunk$lines;
-
-        // Mine inserted
-        (_hunk$lines = hunk.lines).push.apply(_hunk$lines, _toConsumableArray(collectChange(mine)));
-      } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
-        var _hunk$lines2;
-
-        // Theirs inserted
-        (_hunk$lines2 = hunk.lines).push.apply(_hunk$lines2, _toConsumableArray(collectChange(their)));
-      } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
-        // Mine removed or edited
-        removal(hunk, mine, their);
-      } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
-        // Their removed or edited
-        removal(hunk, their, mine, true);
-      } else if (mineCurrent === theirCurrent) {
-        // Context identity
-        hunk.lines.push(mineCurrent);
-        mine.index++;
-        their.index++;
-      } else {
-        // Context mismatch
-        conflict(hunk, collectChange(mine), collectChange(their));
-      }
-    } // Now push anything that may be remaining
-
-
-    insertTrailing(hunk, mine);
-    insertTrailing(hunk, their);
-    calcLineCount(hunk);
-  }
-
-  function mutualChange(hunk, mine, their) {
-    var myChanges = collectChange(mine),
-        theirChanges = collectChange(their);
-
-    if (allRemoves(myChanges) && allRemoves(theirChanges)) {
-      // Special case for remove changes that are supersets of one another
-      if (arrayStartsWith(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
-        var _hunk$lines3;
-
-        (_hunk$lines3 = hunk.lines).push.apply(_hunk$lines3, _toConsumableArray(myChanges));
-
-        return;
-      } else if (arrayStartsWith(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
-        var _hunk$lines4;
-
-        (_hunk$lines4 = hunk.lines).push.apply(_hunk$lines4, _toConsumableArray(theirChanges));
-
-        return;
-      }
-    } else if (arrayEqual(myChanges, theirChanges)) {
-      var _hunk$lines5;
-
-      (_hunk$lines5 = hunk.lines).push.apply(_hunk$lines5, _toConsumableArray(myChanges));
-
-      return;
-    }
-
-    conflict(hunk, myChanges, theirChanges);
-  }
-
-  function removal(hunk, mine, their, swap) {
-    var myChanges = collectChange(mine),
-        theirChanges = collectContext(their, myChanges);
-
-    if (theirChanges.merged) {
-      var _hunk$lines6;
-
-      (_hunk$lines6 = hunk.lines).push.apply(_hunk$lines6, _toConsumableArray(theirChanges.merged));
-    } else {
-      conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
-    }
-  }
-
-  function conflict(hunk, mine, their) {
-    hunk.conflict = true;
-    hunk.lines.push({
-      conflict: true,
-      mine: mine,
-      theirs: their
-    });
-  }
-
-  function insertLeading(hunk, insert, their) {
-    while (insert.offset < their.offset && insert.index < insert.lines.length) {
-      var line = insert.lines[insert.index++];
-      hunk.lines.push(line);
-      insert.offset++;
-    }
-  }
-
-  function insertTrailing(hunk, insert) {
-    while (insert.index < insert.lines.length) {
-      var line = insert.lines[insert.index++];
-      hunk.lines.push(line);
-    }
-  }
-
-  function collectChange(state) {
-    var ret = [],
-        operation = state.lines[state.index][0];
-
-    while (state.index < state.lines.length) {
-      var line = state.lines[state.index]; // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.
-
-      if (operation === '-' && line[0] === '+') {
-        operation = '+';
-      }
-
-      if (operation === line[0]) {
-        ret.push(line);
-        state.index++;
-      } else {
-        break;
-      }
-    }
-
-    return ret;
-  }
-
-  function collectContext(state, matchChanges) {
-    var changes = [],
-        merged = [],
-        matchIndex = 0,
-        contextChanges = false,
-        conflicted = false;
-
-    while (matchIndex < matchChanges.length && state.index < state.lines.length) {
-      var change = state.lines[state.index],
-          match = matchChanges[matchIndex]; // Once we've hit our add, then we are done
-
-      if (match[0] === '+') {
-        break;
-      }
-
-      contextChanges = contextChanges || change[0] !== ' ';
-      merged.push(match);
-      matchIndex++; // Consume any additions in the other block as a conflict to attempt
-      // to pull in the remaining context after this
-
-      if (change[0] === '+') {
-        conflicted = true;
-
-        while (change[0] === '+') {
-          changes.push(change);
-          change = state.lines[++state.index];
-        }
-      }
-
-      if (match.substr(1) === change.substr(1)) {
-        changes.push(change);
-        state.index++;
-      } else {
-        conflicted = true;
-      }
-    }
-
-    if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
-      conflicted = true;
-    }
-
-    if (conflicted) {
-      return changes;
-    }
-
-    while (matchIndex < matchChanges.length) {
-      merged.push(matchChanges[matchIndex++]);
-    }
-
-    return {
-      merged: merged,
-      changes: changes
-    };
-  }
-
-  function allRemoves(changes) {
-    return changes.reduce(function (prev, change) {
-      return prev && change[0] === '-';
-    }, true);
-  }
-
-  function skipRemoveSuperset(state, removeChanges, delta) {
-    for (var i = 0; i < delta; i++) {
-      var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);
-
-      if (state.lines[state.index + i] !== ' ' + changeContent) {
-        return false;
-      }
-    }
-
-    state.index += delta;
-    return true;
-  }
-
-  function calcOldNewLineCount(lines) {
-    var oldLines = 0;
-    var newLines = 0;
-    lines.forEach(function (line) {
-      if (typeof line !== 'string') {
-        var myCount = calcOldNewLineCount(line.mine);
-        var theirCount = calcOldNewLineCount(line.theirs);
-
-        if (oldLines !== undefined) {
-          if (myCount.oldLines === theirCount.oldLines) {
-            oldLines += myCount.oldLines;
-          } else {
-            oldLines = undefined;
-          }
-        }
-
-        if (newLines !== undefined) {
-          if (myCount.newLines === theirCount.newLines) {
-            newLines += myCount.newLines;
-          } else {
-            newLines = undefined;
-          }
-        }
-      } else {
-        if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
-          newLines++;
-        }
-
-        if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
-          oldLines++;
-        }
-      }
-    });
-    return {
-      oldLines: oldLines,
-      newLines: newLines
-    };
-  }
-
-  // See: http://code.google.com/p/google-diff-match-patch/wiki/API
-  function convertChangesToDMP(changes) {
-    var ret = [],
-        change,
-        operation;
-
-    for (var i = 0; i < changes.length; i++) {
-      change = changes[i];
-
-      if (change.added) {
-        operation = 1;
-      } else if (change.removed) {
-        operation = -1;
-      } else {
-        operation = 0;
-      }
-
-      ret.push([operation, change.value]);
-    }
-
-    return ret;
-  }
-
-  function convertChangesToXML(changes) {
-    var ret = [];
-
-    for (var i = 0; i < changes.length; i++) {
-      var change = changes[i];
-
-      if (change.added) {
-        ret.push('<ins>');
-      } else if (change.removed) {
-        ret.push('<del>');
-      }
-
-      ret.push(escapeHTML(change.value));
-
-      if (change.added) {
-        ret.push('</ins>');
-      } else if (change.removed) {
-        ret.push('</del>');
-      }
-    }
-
-    return ret.join('');
-  }
-
-  function escapeHTML(s) {
-    var n = s;
-    n = n.replace(/&/g, '&amp;');
-    n = n.replace(/</g, '&lt;');
-    n = n.replace(/>/g, '&gt;');
-    n = n.replace(/"/g, '&quot;');
-    return n;
-  }
-
-  /* See LICENSE file for terms of use */
-
-  exports.Diff = Diff;
-  exports.diffChars = diffChars;
-  exports.diffWords = diffWords;
-  exports.diffWordsWithSpace = diffWordsWithSpace;
-  exports.diffLines = diffLines;
-  exports.diffTrimmedLines = diffTrimmedLines;
-  exports.diffSentences = diffSentences;
-  exports.diffCss = diffCss;
-  exports.diffJson = diffJson;
-  exports.diffArrays = diffArrays;
-  exports.structuredPatch = structuredPatch;
-  exports.createTwoFilesPatch = createTwoFilesPatch;
-  exports.createPatch = createPatch;
-  exports.applyPatch = applyPatch;
-  exports.applyPatches = applyPatches;
-  exports.parsePatch = parsePatch;
-  exports.merge = merge;
-  exports.convertChangesToDMP = convertChangesToDMP;
-  exports.convertChangesToXML = convertChangesToXML;
-  exports.canonicalize = canonicalize;
-
-  Object.defineProperty(exports, '__esModule', { value: true });
+	function notPermitted(err) {
+	  console.error('notification error:', err.message);
+	}
 
-}));
+	var growl = {
+	  isCapable: isCapable,
+	  notify: notify
+	};
 
-},{}],49:[function(require,module,exports){
-'use strict';
-
-var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
-
-module.exports = function (str) {
-	if (typeof str !== 'string') {
-		throw new TypeError('Expected a string');
-	}
-
-	return str.replace(matchOperatorsRe, '\\$&');
-};
-
-},{}],50:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var objectCreate = Object.create || objectCreatePolyfill
-var objectKeys = Object.keys || objectKeysPolyfill
-var bind = Function.prototype.bind || functionBindPolyfill
-
-function EventEmitter() {
-  if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
-    this._events = objectCreate(null);
-    this._eventsCount = 0;
-  }
-
-  this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
-
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
-
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
-
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-var defaultMaxListeners = 10;
-
-var hasDefineProperty;
-try {
-  var o = {};
-  if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
-  hasDefineProperty = o.x === 0;
-} catch (err) { hasDefineProperty = false }
-if (hasDefineProperty) {
-  Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
-    enumerable: true,
-    get: function() {
-      return defaultMaxListeners;
-    },
-    set: function(arg) {
-      // check whether the input is a positive number (whose value is zero or
-      // greater and not a NaN).
-      if (typeof arg !== 'number' || arg < 0 || arg !== arg)
-        throw new TypeError('"defaultMaxListeners" must be a positive number');
-      defaultMaxListeners = arg;
-    }
-  });
-} else {
-  EventEmitter.defaultMaxListeners = defaultMaxListeners;
-}
-
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
-  if (typeof n !== 'number' || n < 0 || isNaN(n))
-    throw new TypeError('"n" argument must be a positive number');
-  this._maxListeners = n;
-  return this;
-};
-
-function $getMaxListeners(that) {
-  if (that._maxListeners === undefined)
-    return EventEmitter.defaultMaxListeners;
-  return that._maxListeners;
-}
-
-EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
-  return $getMaxListeners(this);
-};
-
-// These standalone emit* functions are used to optimize calling of event
-// handlers for fast cases because emit() itself often has a variable number of
-// arguments and can be deoptimized because of that. These functions always have
-// the same number of arguments and thus do not get deoptimized, so the code
-// inside them can execute faster.
-function emitNone(handler, isFn, self) {
-  if (isFn)
-    handler.call(self);
-  else {
-    var len = handler.length;
-    var listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
-      listeners[i].call(self);
-  }
-}
-function emitOne(handler, isFn, self, arg1) {
-  if (isFn)
-    handler.call(self, arg1);
-  else {
-    var len = handler.length;
-    var listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
-      listeners[i].call(self, arg1);
-  }
-}
-function emitTwo(handler, isFn, self, arg1, arg2) {
-  if (isFn)
-    handler.call(self, arg1, arg2);
-  else {
-    var len = handler.length;
-    var listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
-      listeners[i].call(self, arg1, arg2);
-  }
-}
-function emitThree(handler, isFn, self, arg1, arg2, arg3) {
-  if (isFn)
-    handler.call(self, arg1, arg2, arg3);
-  else {
-    var len = handler.length;
-    var listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
-      listeners[i].call(self, arg1, arg2, arg3);
-  }
-}
-
-function emitMany(handler, isFn, self, args) {
-  if (isFn)
-    handler.apply(self, args);
-  else {
-    var len = handler.length;
-    var listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
-      listeners[i].apply(self, args);
-  }
-}
-
-EventEmitter.prototype.emit = function emit(type) {
-  var er, handler, len, args, i, events;
-  var doError = (type === 'error');
-
-  events = this._events;
-  if (events)
-    doError = (doError && events.error == null);
-  else if (!doError)
-    return false;
-
-  // If there is no 'error' event listener then throw.
-  if (doError) {
-    if (arguments.length > 1)
-      er = arguments[1];
-    if (er instanceof Error) {
-      throw er; // Unhandled 'error' event
-    } else {
-      // At least give some kind of context to the user
-      var err = new Error('Unhandled "error" event. (' + er + ')');
-      err.context = er;
-      throw err;
-    }
-    return false;
-  }
-
-  handler = events[type];
-
-  if (!handler)
-    return false;
-
-  var isFn = typeof handler === 'function';
-  len = arguments.length;
-  switch (len) {
-      // fast cases
-    case 1:
-      emitNone(handler, isFn, this);
-      break;
-    case 2:
-      emitOne(handler, isFn, this, arguments[1]);
-      break;
-    case 3:
-      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
-      break;
-    case 4:
-      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
-      break;
-      // slower
-    default:
-      args = new Array(len - 1);
-      for (i = 1; i < len; i++)
-        args[i - 1] = arguments[i];
-      emitMany(handler, isFn, this, args);
-  }
-
-  return true;
-};
-
-function _addListener(target, type, listener, prepend) {
-  var m;
-  var events;
-  var existing;
-
-  if (typeof listener !== 'function')
-    throw new TypeError('"listener" argument must be a function');
-
-  events = target._events;
-  if (!events) {
-    events = target._events = objectCreate(null);
-    target._eventsCount = 0;
-  } else {
-    // To avoid recursion in the case that type === "newListener"! Before
-    // adding it to the listeners, first emit "newListener".
-    if (events.newListener) {
-      target.emit('newListener', type,
-          listener.listener ? listener.listener : listener);
-
-      // Re-assign `events` because a newListener handler could have caused the
-      // this._events to be assigned to a new object
-      events = target._events;
-    }
-    existing = events[type];
-  }
-
-  if (!existing) {
-    // Optimize the case of one listener. Don't need the extra array object.
-    existing = events[type] = listener;
-    ++target._eventsCount;
-  } else {
-    if (typeof existing === 'function') {
-      // Adding the second element, need to change to array.
-      existing = events[type] =
-          prepend ? [listener, existing] : [existing, listener];
-    } else {
-      // If we've already got an array, just append.
-      if (prepend) {
-        existing.unshift(listener);
-      } else {
-        existing.push(listener);
-      }
-    }
-
-    // Check for listener leak
-    if (!existing.warned) {
-      m = $getMaxListeners(target);
-      if (m && m > 0 && existing.length > m) {
-        existing.warned = true;
-        var w = new Error('Possible EventEmitter memory leak detected. ' +
-            existing.length + ' "' + String(type) + '" listeners ' +
-            'added. Use emitter.setMaxListeners() to ' +
-            'increase limit.');
-        w.name = 'MaxListenersExceededWarning';
-        w.emitter = target;
-        w.type = type;
-        w.count = existing.length;
-        if (typeof console === 'object' && console.warn) {
-          console.warn('%s: %s', w.name, w.message);
-        }
-      }
-    }
-  }
-
-  return target;
-}
-
-EventEmitter.prototype.addListener = function addListener(type, listener) {
-  return _addListener(this, type, listener, false);
-};
-
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
-
-EventEmitter.prototype.prependListener =
-    function prependListener(type, listener) {
-      return _addListener(this, type, listener, true);
-    };
-
-function onceWrapper() {
-  if (!this.fired) {
-    this.target.removeListener(this.type, this.wrapFn);
-    this.fired = true;
-    switch (arguments.length) {
-      case 0:
-        return this.listener.call(this.target);
-      case 1:
-        return this.listener.call(this.target, arguments[0]);
-      case 2:
-        return this.listener.call(this.target, arguments[0], arguments[1]);
-      case 3:
-        return this.listener.call(this.target, arguments[0], arguments[1],
-            arguments[2]);
-      default:
-        var args = new Array(arguments.length);
-        for (var i = 0; i < args.length; ++i)
-          args[i] = arguments[i];
-        this.listener.apply(this.target, args);
-    }
-  }
-}
-
-function _onceWrap(target, type, listener) {
-  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
-  var wrapped = bind.call(onceWrapper, state);
-  wrapped.listener = listener;
-  state.wrapFn = wrapped;
-  return wrapped;
-}
-
-EventEmitter.prototype.once = function once(type, listener) {
-  if (typeof listener !== 'function')
-    throw new TypeError('"listener" argument must be a function');
-  this.on(type, _onceWrap(this, type, listener));
-  return this;
-};
-
-EventEmitter.prototype.prependOnceListener =
-    function prependOnceListener(type, listener) {
-      if (typeof listener !== 'function')
-        throw new TypeError('"listener" argument must be a function');
-      this.prependListener(type, _onceWrap(this, type, listener));
-      return this;
-    };
-
-// Emits a 'removeListener' event if and only if the listener was removed.
-EventEmitter.prototype.removeListener =
-    function removeListener(type, listener) {
-      var list, events, position, i, originalListener;
-
-      if (typeof listener !== 'function')
-        throw new TypeError('"listener" argument must be a function');
-
-      events = this._events;
-      if (!events)
-        return this;
-
-      list = events[type];
-      if (!list)
-        return this;
-
-      if (list === listener || list.listener === listener) {
-        if (--this._eventsCount === 0)
-          this._events = objectCreate(null);
-        else {
-          delete events[type];
-          if (events.removeListener)
-            this.emit('removeListener', type, list.listener || listener);
-        }
-      } else if (typeof list !== 'function') {
-        position = -1;
-
-        for (i = list.length - 1; i >= 0; i--) {
-          if (list[i] === listener || list[i].listener === listener) {
-            originalListener = list[i].listener;
-            position = i;
-            break;
-          }
-        }
-
-        if (position < 0)
-          return this;
-
-        if (position === 0)
-          list.shift();
-        else
-          spliceOne(list, position);
-
-        if (list.length === 1)
-          events[type] = list[0];
-
-        if (events.removeListener)
-          this.emit('removeListener', type, originalListener || listener);
-      }
-
-      return this;
-    };
-
-EventEmitter.prototype.removeAllListeners =
-    function removeAllListeners(type) {
-      var listeners, events, i;
-
-      events = this._events;
-      if (!events)
-        return this;
-
-      // not listening for removeListener, no need to emit
-      if (!events.removeListener) {
-        if (arguments.length === 0) {
-          this._events = objectCreate(null);
-          this._eventsCount = 0;
-        } else if (events[type]) {
-          if (--this._eventsCount === 0)
-            this._events = objectCreate(null);
-          else
-            delete events[type];
-        }
-        return this;
-      }
-
-      // emit removeListener for all listeners on all events
-      if (arguments.length === 0) {
-        var keys = objectKeys(events);
-        var key;
-        for (i = 0; i < keys.length; ++i) {
-          key = keys[i];
-          if (key === 'removeListener') continue;
-          this.removeAllListeners(key);
-        }
-        this.removeAllListeners('removeListener');
-        this._events = objectCreate(null);
-        this._eventsCount = 0;
-        return this;
-      }
-
-      listeners = events[type];
-
-      if (typeof listeners === 'function') {
-        this.removeListener(type, listeners);
-      } else if (listeners) {
-        // LIFO order
-        for (i = listeners.length - 1; i >= 0; i--) {
-          this.removeListener(type, listeners[i]);
-        }
-      }
-
-      return this;
-    };
-
-function _listeners(target, type, unwrap) {
-  var events = target._events;
-
-  if (!events)
-    return [];
-
-  var evlistener = events[type];
-  if (!evlistener)
-    return [];
-
-  if (typeof evlistener === 'function')
-    return unwrap ? [evlistener.listener || evlistener] : [evlistener];
-
-  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
-}
-
-EventEmitter.prototype.listeners = function listeners(type) {
-  return _listeners(this, type, true);
-};
-
-EventEmitter.prototype.rawListeners = function rawListeners(type) {
-  return _listeners(this, type, false);
-};
-
-EventEmitter.listenerCount = function(emitter, type) {
-  if (typeof emitter.listenerCount === 'function') {
-    return emitter.listenerCount(type);
-  } else {
-    return listenerCount.call(emitter, type);
-  }
-};
-
-EventEmitter.prototype.listenerCount = listenerCount;
-function listenerCount(type) {
-  var events = this._events;
-
-  if (events) {
-    var evlistener = events[type];
-
-    if (typeof evlistener === 'function') {
-      return 1;
-    } else if (evlistener) {
-      return evlistener.length;
-    }
-  }
-
-  return 0;
-}
-
-EventEmitter.prototype.eventNames = function eventNames() {
-  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
-};
-
-// About 1.5x faster than the two-arg version of Array#splice().
-function spliceOne(list, index) {
-  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
-    list[i] = list[k];
-  list.pop();
-}
-
-function arrayClone(arr, n) {
-  var copy = new Array(n);
-  for (var i = 0; i < n; ++i)
-    copy[i] = arr[i];
-  return copy;
-}
-
-function unwrapListeners(arr) {
-  var ret = new Array(arr.length);
-  for (var i = 0; i < ret.length; ++i) {
-    ret[i] = arr[i].listener || arr[i];
-  }
-  return ret;
-}
-
-function objectCreatePolyfill(proto) {
-  var F = function() {};
-  F.prototype = proto;
-  return new F;
-}
-function objectKeysPolyfill(obj) {
-  var keys = [];
-  for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
-    keys.push(k);
-  }
-  return k;
-}
-function functionBindPolyfill(context) {
-  var fn = this;
-  return function () {
-    return fn.apply(context, arguments);
-  };
-}
-
-},{}],51:[function(require,module,exports){
-'use strict';
-
-/* eslint no-invalid-this: 1 */
-
-var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
-var slice = Array.prototype.slice;
-var toStr = Object.prototype.toString;
-var funcType = '[object Function]';
-
-module.exports = function bind(that) {
-    var target = this;
-    if (typeof target !== 'function' || toStr.call(target) !== funcType) {
-        throw new TypeError(ERROR_MESSAGE + target);
-    }
-    var args = slice.call(arguments, 1);
-
-    var bound;
-    var binder = function () {
-        if (this instanceof bound) {
-            var result = target.apply(
-                this,
-                args.concat(slice.call(arguments))
-            );
-            if (Object(result) === result) {
-                return result;
-            }
-            return this;
-        } else {
-            return target.apply(
-                that,
-                args.concat(slice.call(arguments))
-            );
-        }
-    };
-
-    var boundLength = Math.max(0, target.length - args.length);
-    var boundArgs = [];
-    for (var i = 0; i < boundLength; i++) {
-        boundArgs.push('$' + i);
-    }
-
-    bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);
-
-    if (target.prototype) {
-        var Empty = function Empty() {};
-        Empty.prototype = target.prototype;
-        bound.prototype = new Empty();
-        Empty.prototype = null;
-    }
-
-    return bound;
-};
-
-},{}],52:[function(require,module,exports){
-'use strict';
-
-var implementation = require('./implementation');
-
-module.exports = Function.prototype.bind || implementation;
-
-},{"./implementation":51}],53:[function(require,module,exports){
-'use strict';
-
-/* eslint complexity: [2, 18], max-statements: [2, 33] */
-module.exports = function hasSymbols() {
-	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
-	if (typeof Symbol.iterator === 'symbol') { return true; }
-
-	var obj = {};
-	var sym = Symbol('test');
-	var symObj = Object(sym);
-	if (typeof sym === 'string') { return false; }
-
-	if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
-	if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
-
-	// temp disabled per https://github.com/ljharb/object.assign/issues/17
-	// if (sym instanceof Symbol) { return false; }
-	// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
-	// if (!(symObj instanceof Symbol)) { return false; }
-
-	// if (typeof Symbol.prototype.toString !== 'function') { return false; }
-	// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
-
-	var symVal = 42;
-	obj[sym] = symVal;
-	for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax
-	if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
-
-	if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
-
-	var syms = Object.getOwnPropertySymbols(obj);
-	if (syms.length !== 1 || syms[0] !== sym) { return false; }
-
-	if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
-
-	if (typeof Object.getOwnPropertyDescriptor === 'function') {
-		var descriptor = Object.getOwnPropertyDescriptor(obj, sym);
-		if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
-	}
-
-	return true;
-};
-
-},{}],54:[function(require,module,exports){
-(function (global){
-/*! https://mths.be/he v1.2.0 by @mathias | MIT license */
-;(function(root) {
-
-	// Detect free variables `exports`.
-	var freeExports = typeof exports == 'object' && exports;
-
-	// Detect free variable `module`.
-	var freeModule = typeof module == 'object' && module &&
-		module.exports == freeExports && module;
-
-	// Detect free variable `global`, from Node.js or Browserified code,
-	// and use it as `root`.
-	var freeGlobal = typeof global == 'object' && global;
-	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
-		root = freeGlobal;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	// All astral symbols.
-	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
-	// All ASCII symbols (not just printable ASCII) except those listed in the
-	// first column of the overrides table.
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
-	var regexAsciiWhitelist = /[\x01-\x7F]/g;
-	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
-	// code points listed in the first column of the overrides table on
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
-	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
-
-	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
-	var encodeMap = 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','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
-
-	var regexEscape = /["&'<>`]/g;
-	var escapeMap = {
-		'"': '&quot;',
-		'&': '&amp;',
-		'\'': '&#x27;',
-		'<': '&lt;',
-		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
-		// following is not strictly necessary unless it’s part of a tag or an
-		// unquoted attribute value. We’re only escaping it to support those
-		// situations, and for XML support.
-		'>': '&gt;',
-		// In Internet Explorer ≤ 8, the backtick character can be used
-		// to break out of (un)quoted attribute values or HTML comments.
-		// See http://html5sec.org/#102, http://html5sec.org/#108, and
-		// http://html5sec.org/#133.
-		'`': '&#x60;'
-	};
-
-	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
-	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
-	var regexDecode = 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|Fscr|gdot|gsim|Gscr|gscr|Gopf|gopf|gneq|Gdot|tosa|gnap|Topf|topf|geqq|toea|GJcy|gjcy|tint|gesl|mid|Sfr|ggg|top|ges|gla|glE|glj|geq|gne|gEl|gel|gnE|Gcy|gcy|gap|Tfr|tfr|Tcy|tcy|Hat|Tau|Ffr|tau|Tab|hfr|Hfr|ffr|Fcy|fcy|icy|Icy|iff|ETH|eth|ifr|Ifr|Eta|eta|int|Int|Sup|sup|ucy|Ucy|Sum|sum|jcy|ENG|ufr|Ufr|eng|Jcy|jfr|els|ell|egs|Efr|efr|Jfr|uml|kcy|Kcy|Ecy|ecy|kfr|Kfr|lap|Sub|sub|lat|lcy|Lcy|leg|Dot|dot|lEg|leq|les|squ|div|die|lfr|Lfr|lgE|Dfr|dfr|Del|deg|Dcy|dcy|lne|lnE|sol|loz|smt|Cup|lrm|cup|lsh|Lsh|sim|shy|map|Map|mcy|Mcy|mfr|Mfr|mho|gfr|Gfr|sfr|cir|Chi|chi|nap|Cfr|vcy|Vcy|cfr|Scy|scy|ncy|Ncy|vee|Vee|Cap|cap|nfr|scE|sce|Nfr|nge|ngE|nGg|vfr|Vfr|ngt|bot|nGt|nis|niv|Rsh|rsh|nle|nlE|bne|Bfr|bfr|nLl|nlt|nLt|Bcy|bcy|not|Not|rlm|wfr|Wfr|npr|nsc|num|ocy|ast|Ocy|ofr|xfr|Xfr|Ofr|ogt|ohm|apE|olt|Rho|ape|rho|Rfr|rfr|ord|REG|ang|reg|orv|And|and|AMP|Rcy|amp|Afr|ycy|Ycy|yen|yfr|Yfr|rcy|par|pcy|Pcy|pfr|Pfr|phi|Phi|afr|Acy|acy|zcy|Zcy|piv|acE|acd|zfr|Zfr|pre|prE|psi|Psi|qfr|Qfr|zwj|Or|ge|Gg|gt|gg|el|oS|lt|Lt|LT|Re|lg|gl|eg|ne|Im|it|le|DD|wp|wr|nu|Nu|dd|lE|Sc|sc|pi|Pi|ee|af|ll|Ll|rx|gE|xi|pm|Xi|ic|pr|Pr|in|ni|mp|mu|ac|Mu|or|ap|Gt|GT|ii);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)(?!;)([=a-zA-Z0-9]?)|&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+)/g;
-	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
-	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
-	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
-	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
-
-	/*--------------------------------------------------------------------------*/
-
-	var stringFromCharCode = String.fromCharCode;
-
-	var object = {};
-	var hasOwnProperty = object.hasOwnProperty;
-	var has = function(object, propertyName) {
-		return hasOwnProperty.call(object, propertyName);
-	};
-
-	var contains = function(array, value) {
-		var index = -1;
-		var length = array.length;
-		while (++index < length) {
-			if (array[index] == value) {
-				return true;
-			}
-		}
-		return false;
-	};
-
-	var merge = function(options, defaults) {
-		if (!options) {
-			return defaults;
-		}
-		var result = {};
-		var key;
-		for (key in defaults) {
-			// A `hasOwnProperty` check is not needed here, since only recognized
-			// option names are used anyway. Any others are ignored.
-			result[key] = has(options, key) ? options[key] : defaults[key];
-		}
-		return result;
-	};
-
-	// Modified version of `ucs2encode`; see https://mths.be/punycode.
-	var codePointToSymbol = function(codePoint, strict) {
-		var output = '';
-		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
-			// See issue #4:
-			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
-			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
-			// REPLACEMENT CHARACTER.”
-			if (strict) {
-				parseError('character reference outside the permissible Unicode range');
-			}
-			return '\uFFFD';
-		}
-		if (has(decodeMapNumeric, codePoint)) {
-			if (strict) {
-				parseError('disallowed character reference');
-			}
-			return decodeMapNumeric[codePoint];
-		}
-		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
-			parseError('disallowed character reference');
-		}
-		if (codePoint > 0xFFFF) {
-			codePoint -= 0x10000;
-			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
-			codePoint = 0xDC00 | codePoint & 0x3FF;
-		}
-		output += stringFromCharCode(codePoint);
-		return output;
-	};
-
-	var hexEscape = function(codePoint) {
-		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
-	};
-
-	var decEscape = function(codePoint) {
-		return '&#' + codePoint + ';';
-	};
-
-	var parseError = function(message) {
-		throw Error('Parse error: ' + message);
-	};
-
-	/*--------------------------------------------------------------------------*/
-
-	var encode = function(string, options) {
-		options = merge(options, encode.options);
-		var strict = options.strict;
-		if (strict && regexInvalidRawCodePoint.test(string)) {
-			parseError('forbidden code point');
-		}
-		var encodeEverything = options.encodeEverything;
-		var useNamedReferences = options.useNamedReferences;
-		var allowUnsafeSymbols = options.allowUnsafeSymbols;
-		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
-
-		var escapeBmpSymbol = function(symbol) {
-			return escapeCodePoint(symbol.charCodeAt(0));
-		};
-
-		if (encodeEverything) {
-			// Encode ASCII symbols.
-			string = string.replace(regexAsciiWhitelist, function(symbol) {
-				// Use named references if requested & possible.
-				if (useNamedReferences && has(encodeMap, symbol)) {
-					return '&' + encodeMap[symbol] + ';';
-				}
-				return escapeBmpSymbol(symbol);
-			});
-			// Shorten a few escapes that represent two symbols, of which at least one
-			// is within the ASCII range.
-			if (useNamedReferences) {
-				string = string
-					.replace(/&gt;\u20D2/g, '&nvgt;')
-					.replace(/&lt;\u20D2/g, '&nvlt;')
-					.replace(/&#x66;&#x6A;/g, '&fjlig;');
-			}
-			// Encode non-ASCII symbols.
-			if (useNamedReferences) {
-				// Encode non-ASCII symbols that can be replaced with a named reference.
-				string = string.replace(regexEncodeNonAscii, function(string) {
-					// Note: there is no need to check `has(encodeMap, string)` here.
-					return '&' + encodeMap[string] + ';';
-				});
-			}
-			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
-		} else if (useNamedReferences) {
-			// Apply named character references.
-			// Encode `<>"'&` using named character references.
-			if (!allowUnsafeSymbols) {
-				string = string.replace(regexEscape, function(string) {
-					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
-				});
-			}
-			// Shorten escapes that represent two symbols, of which at least one is
-			// `<>"'&`.
-			string = string
-				.replace(/&gt;\u20D2/g, '&nvgt;')
-				.replace(/&lt;\u20D2/g, '&nvlt;');
-			// Encode non-ASCII symbols that can be replaced with a named reference.
-			string = string.replace(regexEncodeNonAscii, function(string) {
-				// Note: there is no need to check `has(encodeMap, string)` here.
-				return '&' + encodeMap[string] + ';';
-			});
-		} else if (!allowUnsafeSymbols) {
-			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
-			// using named character references.
-			string = string.replace(regexEscape, escapeBmpSymbol);
-		}
-		return string
-			// Encode astral symbols.
-			.replace(regexAstralSymbols, function($0) {
-				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
-				var high = $0.charCodeAt(0);
-				var low = $0.charCodeAt(1);
-				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
-				return escapeCodePoint(codePoint);
-			})
-			// Encode any remaining BMP symbols that are not printable ASCII symbols
-			// using a hexadecimal escape.
-			.replace(regexBmpWhitelist, escapeBmpSymbol);
-	};
-	// Expose default options (so they can be overridden globally).
-	encode.options = {
-		'allowUnsafeSymbols': false,
-		'encodeEverything': false,
-		'strict': false,
-		'useNamedReferences': false,
-		'decimal' : false
-	};
-
-	var decode = function(html, options) {
-		options = merge(options, decode.options);
-		var strict = options.strict;
-		if (strict && regexInvalidEntity.test(html)) {
-			parseError('malformed character reference');
-		}
-		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7, $8) {
-			var codePoint;
-			var semicolon;
-			var decDigits;
-			var hexDigits;
-			var reference;
-			var next;
-
-			if ($1) {
-				reference = $1;
-				// Note: there is no need to check `has(decodeMap, reference)`.
-				return decodeMap[reference];
-			}
-
-			if ($2) {
-				// Decode named character references without trailing `;`, e.g. `&amp`.
-				// This is only a parse error if it gets converted to `&`, or if it is
-				// followed by `=` in an attribute context.
-				reference = $2;
-				next = $3;
-				if (next && options.isAttributeValue) {
-					if (strict && next == '=') {
-						parseError('`&` did not start a character reference');
-					}
-					return $0;
-				} else {
-					if (strict) {
-						parseError(
-							'named character reference was not terminated by a semicolon'
-						);
-					}
-					// Note: there is no need to check `has(decodeMapLegacy, reference)`.
-					return decodeMapLegacy[reference] + (next || '');
-				}
-			}
-
-			if ($4) {
-				// Decode decimal escapes, e.g. `&#119558;`.
-				decDigits = $4;
-				semicolon = $5;
-				if (strict && !semicolon) {
-					parseError('character reference was not terminated by a semicolon');
-				}
-				codePoint = parseInt(decDigits, 10);
-				return codePointToSymbol(codePoint, strict);
-			}
-
-			if ($6) {
-				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
-				hexDigits = $6;
-				semicolon = $7;
-				if (strict && !semicolon) {
-					parseError('character reference was not terminated by a semicolon');
-				}
-				codePoint = parseInt(hexDigits, 16);
-				return codePointToSymbol(codePoint, strict);
-			}
-
-			// If we’re still here, `if ($7)` is implied; it’s an ambiguous
-			// ampersand for sure. https://mths.be/notes/ambiguous-ampersands
-			if (strict) {
-				parseError(
-					'named character reference was not terminated by a semicolon'
-				);
-			}
-			return $0;
-		});
-	};
-	// Expose default options (so they can be overridden globally).
-	decode.options = {
-		'isAttributeValue': false,
-		'strict': false
-	};
-
-	var escape = function(string) {
-		return string.replace(regexEscape, function($0) {
-			// Note: there is no need to check `has(escapeMap, $0)` here.
-			return escapeMap[$0];
-		});
-	};
-
-	/*--------------------------------------------------------------------------*/
-
-	var he = {
-		'version': '1.2.0',
-		'encode': encode,
-		'decode': decode,
-		'escape': escape,
-		'unescape': decode
-	};
-
-	// Some AMD build optimizers, like r.js, check for specific condition patterns
-	// like the following:
-	if (
-		false
-	) {
-		define(function() {
-			return he;
-		});
-	}	else if (freeExports && !freeExports.nodeType) {
-		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
-			freeModule.exports = he;
-		} else { // in Narwhal or RingoJS v0.7.0-
-			for (var key in he) {
-				has(he, key) && (freeExports[key] = he[key]);
-			}
-		}
-	} else { // in Rhino or a web browser
-		root.he = he;
-	}
-
-}(this));
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],55:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
-  var e, m
-  var eLen = (nBytes * 8) - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var nBits = -7
-  var i = isLE ? (nBytes - 1) : 0
-  var d = isLE ? -1 : 1
-  var s = buffer[offset + i]
-
-  i += d
-
-  e = s & ((1 << (-nBits)) - 1)
-  s >>= (-nBits)
-  nBits += eLen
-  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
-
-  m = e & ((1 << (-nBits)) - 1)
-  e >>= (-nBits)
-  nBits += mLen
-  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
-
-  if (e === 0) {
-    e = 1 - eBias
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity)
-  } else {
-    m = m + Math.pow(2, mLen)
-    e = e - eBias
-  }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
-
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
-  var e, m, c
-  var eLen = (nBytes * 8) - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
-  var i = isLE ? 0 : (nBytes - 1)
-  var d = isLE ? 1 : -1
-  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
-
-  value = Math.abs(value)
-
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0
-    e = eMax
-  } else {
-    e = Math.floor(Math.log(value) / Math.LN2)
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--
-      c *= 2
-    }
-    if (e + eBias >= 1) {
-      value += rt / c
-    } else {
-      value += rt * Math.pow(2, 1 - eBias)
-    }
-    if (value * c >= 2) {
-      e++
-      c /= 2
-    }
-
-    if (e + eBias >= eMax) {
-      m = 0
-      e = eMax
-    } else if (e + eBias >= 1) {
-      m = ((value * c) - 1) * Math.pow(2, mLen)
-      e = e + eBias
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
-      e = 0
-    }
-  }
-
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-
-  e = (e << mLen) | m
-  eLen += mLen
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
-
-  buffer[offset + i - d] |= s * 128
-}
-
-},{}],56:[function(require,module,exports){
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    if (superCtor) {
-      ctor.super_ = superCtor
-      ctor.prototype = Object.create(superCtor.prototype, {
-        constructor: {
-          value: ctor,
-          enumerable: false,
-          writable: true,
-          configurable: true
-        }
-      })
-    }
-  };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    if (superCtor) {
-      ctor.super_ = superCtor
-      var TempCtor = function () {}
-      TempCtor.prototype = superCtor.prototype
-      ctor.prototype = new TempCtor()
-      ctor.prototype.constructor = ctor
-    }
-  }
-}
-
-},{}],57:[function(require,module,exports){
-/*!
- * Determine if an object is a Buffer
- *
- * @author   Feross Aboukhadijeh <https://feross.org>
- * @license  MIT
- */
-
-// The _isBuffer check is for Safari 5-7 support, because it's missing
-// Object.prototype.constructor. Remove this eventually
-module.exports = function (obj) {
-  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
-}
-
-function isBuffer (obj) {
-  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-}
-
-// For Node v0.10 support. Remove this eventually.
-function isSlowBuffer (obj) {
-  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
-}
-
-},{}],58:[function(require,module,exports){
-/**
- * Helpers.
- */
-
-var s = 1000;
-var m = s * 60;
-var h = m * 60;
-var d = h * 24;
-var w = d * 7;
-var y = d * 365.25;
-
-/**
- * Parse or format the given `val`.
- *
- * Options:
- *
- *  - `long` verbose formatting [false]
- *
- * @param {String|Number} val
- * @param {Object} [options]
- * @throws {Error} throw an error if val is not a non-empty string or a number
- * @return {String|Number}
- * @api public
- */
-
-module.exports = function(val, options) {
-  options = options || {};
-  var type = typeof val;
-  if (type === 'string' && val.length > 0) {
-    return parse(val);
-  } else if (type === 'number' && isFinite(val)) {
-    return options.long ? fmtLong(val) : fmtShort(val);
-  }
-  throw new Error(
-    'val is not a non-empty string or a valid number. val=' +
-      JSON.stringify(val)
-  );
-};
-
-/**
- * Parse the given `str` and return milliseconds.
- *
- * @param {String} str
- * @return {Number}
- * @api private
- */
-
-function parse(str) {
-  str = String(str);
-  if (str.length > 100) {
-    return;
-  }
-  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
-    str
-  );
-  if (!match) {
-    return;
-  }
-  var n = parseFloat(match[1]);
-  var type = (match[2] || 'ms').toLowerCase();
-  switch (type) {
-    case 'years':
-    case 'year':
-    case 'yrs':
-    case 'yr':
-    case 'y':
-      return n * y;
-    case 'weeks':
-    case 'week':
-    case 'w':
-      return n * w;
-    case 'days':
-    case 'day':
-    case 'd':
-      return n * d;
-    case 'hours':
-    case 'hour':
-    case 'hrs':
-    case 'hr':
-    case 'h':
-      return n * h;
-    case 'minutes':
-    case 'minute':
-    case 'mins':
-    case 'min':
-    case 'm':
-      return n * m;
-    case 'seconds':
-    case 'second':
-    case 'secs':
-    case 'sec':
-    case 's':
-      return n * s;
-    case 'milliseconds':
-    case 'millisecond':
-    case 'msecs':
-    case 'msec':
-    case 'ms':
-      return n;
-    default:
-      return undefined;
-  }
-}
-
-/**
- * Short format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function fmtShort(ms) {
-  var msAbs = Math.abs(ms);
-  if (msAbs >= d) {
-    return Math.round(ms / d) + 'd';
-  }
-  if (msAbs >= h) {
-    return Math.round(ms / h) + 'h';
-  }
-  if (msAbs >= m) {
-    return Math.round(ms / m) + 'm';
-  }
-  if (msAbs >= s) {
-    return Math.round(ms / s) + 's';
-  }
-  return ms + 'ms';
-}
-
-/**
- * Long format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function fmtLong(ms) {
-  var msAbs = Math.abs(ms);
-  if (msAbs >= d) {
-    return plural(ms, msAbs, d, 'day');
-  }
-  if (msAbs >= h) {
-    return plural(ms, msAbs, h, 'hour');
-  }
-  if (msAbs >= m) {
-    return plural(ms, msAbs, m, 'minute');
-  }
-  if (msAbs >= s) {
-    return plural(ms, msAbs, s, 'second');
-  }
-  return ms + ' ms';
-}
-
-/**
- * Pluralization helper.
- */
-
-function plural(ms, msAbs, n, name) {
-  var isPlural = msAbs >= n * 1.5;
-  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
-}
-
-},{}],59:[function(require,module,exports){
-'use strict';
-
-var keysShim;
-if (!Object.keys) {
-	// modified from https://github.com/es-shims/es5-shim
-	var has = Object.prototype.hasOwnProperty;
-	var toStr = Object.prototype.toString;
-	var isArgs = require('./isArguments'); // eslint-disable-line global-require
-	var isEnumerable = Object.prototype.propertyIsEnumerable;
-	var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
-	var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
-	var dontEnums = [
-		'toString',
-		'toLocaleString',
-		'valueOf',
-		'hasOwnProperty',
-		'isPrototypeOf',
-		'propertyIsEnumerable',
-		'constructor'
+	var diff = true;
+	var extension = [
+		"js",
+		"cjs",
+		"mjs"
 	];
-	var equalsConstructorPrototype = function (o) {
-		var ctor = o.constructor;
-		return ctor && ctor.prototype === o;
-	};
-	var excludedKeys = {
-		$applicationCache: true,
-		$console: true,
-		$external: true,
-		$frame: true,
-		$frameElement: true,
-		$frames: true,
-		$innerHeight: true,
-		$innerWidth: true,
-		$onmozfullscreenchange: true,
-		$onmozfullscreenerror: true,
-		$outerHeight: true,
-		$outerWidth: true,
-		$pageXOffset: true,
-		$pageYOffset: true,
-		$parent: true,
-		$scrollLeft: true,
-		$scrollTop: true,
-		$scrollX: true,
-		$scrollY: true,
-		$self: true,
-		$webkitIndexedDB: true,
-		$webkitStorageInfo: true,
-		$window: true
-	};
-	var hasAutomationEqualityBug = (function () {
-		/* global window */
-		if (typeof window === 'undefined') { return false; }
-		for (var k in window) {
-			try {
-				if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
-					try {
-						equalsConstructorPrototype(window[k]);
-					} catch (e) {
-						return true;
-					}
-				}
-			} catch (e) {
-				return true;
-			}
-		}
-		return false;
-	}());
-	var equalsConstructorPrototypeIfNotBuggy = function (o) {
-		/* global window */
-		if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
-			return equalsConstructorPrototype(o);
-		}
-		try {
-			return equalsConstructorPrototype(o);
-		} catch (e) {
-			return false;
-		}
-	};
-
-	keysShim = function keys(object) {
-		var isObject = object !== null && typeof object === 'object';
-		var isFunction = toStr.call(object) === '[object Function]';
-		var isArguments = isArgs(object);
-		var isString = isObject && toStr.call(object) === '[object String]';
-		var theKeys = [];
-
-		if (!isObject && !isFunction && !isArguments) {
-			throw new TypeError('Object.keys called on a non-object');
-		}
-
-		var skipProto = hasProtoEnumBug && isFunction;
-		if (isString && object.length > 0 && !has.call(object, 0)) {
-			for (var i = 0; i < object.length; ++i) {
-				theKeys.push(String(i));
-			}
-		}
-
-		if (isArguments && object.length > 0) {
-			for (var j = 0; j < object.length; ++j) {
-				theKeys.push(String(j));
-			}
-		} else {
-			for (var name in object) {
-				if (!(skipProto && name === 'prototype') && has.call(object, name)) {
-					theKeys.push(String(name));
-				}
-			}
-		}
-
-		if (hasDontEnumBug) {
-			var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
-
-			for (var k = 0; k < dontEnums.length; ++k) {
-				if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
-					theKeys.push(dontEnums[k]);
-				}
-			}
-		}
-		return theKeys;
-	};
-}
-module.exports = keysShim;
-
-},{"./isArguments":61}],60:[function(require,module,exports){
-'use strict';
-
-var slice = Array.prototype.slice;
-var isArgs = require('./isArguments');
-
-var origKeys = Object.keys;
-var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');
-
-var originalKeys = Object.keys;
-
-keysShim.shim = function shimObjectKeys() {
-	if (Object.keys) {
-		var keysWorksWithArguments = (function () {
-			// Safari 5.0 bug
-			var args = Object.keys(arguments);
-			return args && args.length === arguments.length;
-		}(1, 2));
-		if (!keysWorksWithArguments) {
-			Object.keys = function keys(object) { // eslint-disable-line func-name-matching
-				if (isArgs(object)) {
-					return originalKeys(slice.call(object));
-				}
-				return originalKeys(object);
-			};
-		}
-	} else {
-		Object.keys = keysShim;
-	}
-	return Object.keys || keysShim;
-};
-
-module.exports = keysShim;
-
-},{"./implementation":59,"./isArguments":61}],61:[function(require,module,exports){
-'use strict';
-
-var toStr = Object.prototype.toString;
-
-module.exports = function isArguments(value) {
-	var str = toStr.call(value);
-	var isArgs = str === '[object Arguments]';
-	if (!isArgs) {
-		isArgs = str !== '[object Array]' &&
-			value !== null &&
-			typeof value === 'object' &&
-			typeof value.length === 'number' &&
-			value.length >= 0 &&
-			toStr.call(value.callee) === '[object Function]';
-	}
-	return isArgs;
-};
-
-},{}],62:[function(require,module,exports){
-'use strict';
-
-// modified from https://github.com/es-shims/es6-shim
-var keys = require('object-keys');
-var bind = require('function-bind');
-var canBeObject = function (obj) {
-	return typeof obj !== 'undefined' && obj !== null;
-};
-var hasSymbols = require('has-symbols/shams')();
-var toObject = Object;
-var push = bind.call(Function.call, Array.prototype.push);
-var propIsEnumerable = bind.call(Function.call, Object.prototype.propertyIsEnumerable);
-var originalGetSymbols = hasSymbols ? Object.getOwnPropertySymbols : null;
-
-module.exports = function assign(target, source1) {
-	if (!canBeObject(target)) { throw new TypeError('target must be an object'); }
-	var objTarget = toObject(target);
-	var s, source, i, props, syms, value, key;
-	for (s = 1; s < arguments.length; ++s) {
-		source = toObject(arguments[s]);
-		props = keys(source);
-		var getSymbols = hasSymbols && (Object.getOwnPropertySymbols || originalGetSymbols);
-		if (getSymbols) {
-			syms = getSymbols(source);
-			for (i = 0; i < syms.length; ++i) {
-				key = syms[i];
-				if (propIsEnumerable(source, key)) {
-					push(props, key);
-				}
-			}
-		}
-		for (i = 0; i < props.length; ++i) {
-			key = props[i];
-			value = source[key];
-			if (propIsEnumerable(source, key)) {
-				objTarget[key] = value;
-			}
-		}
-	}
-	return objTarget;
-};
-
-},{"function-bind":52,"has-symbols/shams":53,"object-keys":60}],63:[function(require,module,exports){
-'use strict';
-
-var defineProperties = require('define-properties');
-
-var implementation = require('./implementation');
-var getPolyfill = require('./polyfill');
-var shim = require('./shim');
-
-var polyfill = getPolyfill();
-
-defineProperties(polyfill, {
-	getPolyfill: getPolyfill,
-	implementation: implementation,
-	shim: shim
-});
-
-module.exports = polyfill;
-
-},{"./implementation":62,"./polyfill":64,"./shim":65,"define-properties":47}],64:[function(require,module,exports){
-'use strict';
-
-var implementation = require('./implementation');
-
-var lacksProperEnumerationOrder = function () {
-	if (!Object.assign) {
-		return false;
-	}
-	// v8, specifically in node 4.x, has a bug with incorrect property enumeration order
-	// note: this does not detect the bug unless there's 20 characters
-	var str = 'abcdefghijklmnopqrst';
-	var letters = str.split('');
-	var map = {};
-	for (var i = 0; i < letters.length; ++i) {
-		map[letters[i]] = letters[i];
-	}
-	var obj = Object.assign({}, map);
-	var actual = '';
-	for (var k in obj) {
-		actual += k;
-	}
-	return str !== actual;
-};
-
-var assignHasPendingExceptions = function () {
-	if (!Object.assign || !Object.preventExtensions) {
-		return false;
-	}
-	// Firefox 37 still has "pending exception" logic in its Object.assign implementation,
-	// which is 72% slower than our shim, and Firefox 40's native implementation.
-	var thrower = Object.preventExtensions({ 1: 2 });
-	try {
-		Object.assign(thrower, 'xy');
-	} catch (e) {
-		return thrower[1] === 'y';
-	}
-	return false;
-};
-
-module.exports = function getPolyfill() {
-	if (!Object.assign) {
-		return implementation;
-	}
-	if (lacksProperEnumerationOrder()) {
-		return implementation;
-	}
-	if (assignHasPendingExceptions()) {
-		return implementation;
-	}
-	return Object.assign;
-};
-
-},{"./implementation":62}],65:[function(require,module,exports){
-'use strict';
-
-var define = require('define-properties');
-var getPolyfill = require('./polyfill');
-
-module.exports = function shimAssign() {
-	var polyfill = getPolyfill();
-	define(
-		Object,
-		{ assign: polyfill },
-		{ assign: function () { return Object.assign !== polyfill; } }
-	);
-	return polyfill;
-};
-
-},{"./polyfill":64,"define-properties":47}],66:[function(require,module,exports){
-(function (process){
-'use strict';
-
-if (typeof process === 'undefined' ||
-    !process.version ||
-    process.version.indexOf('v0.') === 0 ||
-    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
-  module.exports = { nextTick: nextTick };
-} else {
-  module.exports = process
-}
-
-function nextTick(fn, arg1, arg2, arg3) {
-  if (typeof fn !== 'function') {
-    throw new TypeError('"callback" argument must be a function');
-  }
-  var len = arguments.length;
-  var args, i;
-  switch (len) {
-  case 0:
-  case 1:
-    return process.nextTick(fn);
-  case 2:
-    return process.nextTick(function afterTickOne() {
-      fn.call(null, arg1);
-    });
-  case 3:
-    return process.nextTick(function afterTickTwo() {
-      fn.call(null, arg1, arg2);
-    });
-  case 4:
-    return process.nextTick(function afterTickThree() {
-      fn.call(null, arg1, arg2, arg3);
-    });
-  default:
-    args = new Array(len - 1);
-    i = 0;
-    while (i < args.length) {
-      args[i++] = arguments[i];
-    }
-    return process.nextTick(function afterTick() {
-      fn.apply(null, args);
-    });
-  }
-}
-
-
-}).call(this,require('_process'))
-},{"_process":67}],67:[function(require,module,exports){
-// shim for using process in browser
-var process = module.exports = {};
-
-// cached from whatever global is present so that test runners that stub it
-// don't break things.  But we need to wrap it in a try catch in case it is
-// wrapped in strict mode code which doesn't define any globals.  It's inside a
-// function because try/catches deoptimize in certain engines.
-
-var cachedSetTimeout;
-var cachedClearTimeout;
-
-function defaultSetTimout() {
-    throw new Error('setTimeout has not been defined');
-}
-function defaultClearTimeout () {
-    throw new Error('clearTimeout has not been defined');
-}
-(function () {
-    try {
-        if (typeof setTimeout === 'function') {
-            cachedSetTimeout = setTimeout;
-        } else {
-            cachedSetTimeout = defaultSetTimout;
-        }
-    } catch (e) {
-        cachedSetTimeout = defaultSetTimout;
-    }
-    try {
-        if (typeof clearTimeout === 'function') {
-            cachedClearTimeout = clearTimeout;
-        } else {
-            cachedClearTimeout = defaultClearTimeout;
-        }
-    } catch (e) {
-        cachedClearTimeout = defaultClearTimeout;
-    }
-} ())
-function runTimeout(fun) {
-    if (cachedSetTimeout === setTimeout) {
-        //normal enviroments in sane situations
-        return setTimeout(fun, 0);
-    }
-    // if setTimeout wasn't available but was latter defined
-    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
-        cachedSetTimeout = setTimeout;
-        return setTimeout(fun, 0);
-    }
-    try {
-        // when when somebody has screwed with setTimeout but no I.E. maddness
-        return cachedSetTimeout(fun, 0);
-    } catch(e){
-        try {
-            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
-            return cachedSetTimeout.call(null, fun, 0);
-        } catch(e){
-            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
-            return cachedSetTimeout.call(this, fun, 0);
-        }
-    }
-
-
-}
-function runClearTimeout(marker) {
-    if (cachedClearTimeout === clearTimeout) {
-        //normal enviroments in sane situations
-        return clearTimeout(marker);
-    }
-    // if clearTimeout wasn't available but was latter defined
-    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
-        cachedClearTimeout = clearTimeout;
-        return clearTimeout(marker);
-    }
-    try {
-        // when when somebody has screwed with setTimeout but no I.E. maddness
-        return cachedClearTimeout(marker);
-    } catch (e){
-        try {
-            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
-            return cachedClearTimeout.call(null, marker);
-        } catch (e){
-            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
-            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
-            return cachedClearTimeout.call(this, marker);
-        }
-    }
-
-
-
-}
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
-    if (!draining || !currentQueue) {
-        return;
-    }
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
-    }
-}
-
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    var timeout = runTimeout(cleanUpNextTick);
-    draining = true;
-
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            if (currentQueue) {
-                currentQueue[queueIndex].run();
-            }
-        }
-        queueIndex = -1;
-        len = queue.length;
-    }
-    currentQueue = null;
-    draining = false;
-    runClearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
-    }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        runTimeout(drainQueue);
-    }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-process.prependListener = noop;
-process.prependOnceListener = noop;
-
-process.listeners = function (name) { return [] }
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
-
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
-
-},{}],68:[function(require,module,exports){
-module.exports = require('./lib/_stream_duplex.js');
-
-},{"./lib/_stream_duplex.js":69}],69:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
-
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
-  var keys = [];
-  for (var key in obj) {
-    keys.push(key);
-  }return keys;
-};
-/*</replacement>*/
-
-module.exports = Duplex;
-
-/*<replacement>*/
-var util = Object.create(require('core-util-is'));
-util.inherits = require('inherits');
-/*</replacement>*/
-
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
-
-util.inherits(Duplex, Readable);
-
-{
-  // avoid scope creep, the keys array can then be collected
-  var keys = objectKeys(Writable.prototype);
-  for (var v = 0; v < keys.length; v++) {
-    var method = keys[v];
-    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
-  }
-}
-
-function Duplex(options) {
-  if (!(this instanceof Duplex)) return new Duplex(options);
-
-  Readable.call(this, options);
-  Writable.call(this, options);
-
-  if (options && options.readable === false) this.readable = false;
-
-  if (options && options.writable === false) this.writable = false;
-
-  this.allowHalfOpen = true;
-  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
-
-  this.once('end', onend);
-}
-
-Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
-  // making it explicit this property is not enumerable
-  // because otherwise some prototype manipulation in
-  // userland will fail
-  enumerable: false,
-  get: function () {
-    return this._writableState.highWaterMark;
-  }
-});
-
-// the no-half-open enforcer
-function onend() {
-  // if we allow half-open state, or if the writable side ended,
-  // then we're ok.
-  if (this.allowHalfOpen || this._writableState.ended) return;
-
-  // no more data can be written.
-  // But allow more writes to happen in this tick.
-  pna.nextTick(onEndNT, this);
-}
-
-function onEndNT(self) {
-  self.end();
-}
-
-Object.defineProperty(Duplex.prototype, 'destroyed', {
-  get: function () {
-    if (this._readableState === undefined || this._writableState === undefined) {
-      return false;
-    }
-    return this._readableState.destroyed && this._writableState.destroyed;
-  },
-  set: function (value) {
-    // we ignore the value if the stream
-    // has not been initialized yet
-    if (this._readableState === undefined || this._writableState === undefined) {
-      return;
-    }
-
-    // backward compatibility, the user is explicitly
-    // managing destroyed
-    this._readableState.destroyed = value;
-    this._writableState.destroyed = value;
-  }
-});
-
-Duplex.prototype._destroy = function (err, cb) {
-  this.push(null);
-  this.end();
-
-  pna.nextTick(cb, err);
-};
-},{"./_stream_readable":71,"./_stream_writable":73,"core-util-is":44,"inherits":56,"process-nextick-args":66}],70:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
-
-'use strict';
-
-module.exports = PassThrough;
-
-var Transform = require('./_stream_transform');
-
-/*<replacement>*/
-var util = Object.create(require('core-util-is'));
-util.inherits = require('inherits');
-/*</replacement>*/
-
-util.inherits(PassThrough, Transform);
-
-function PassThrough(options) {
-  if (!(this instanceof PassThrough)) return new PassThrough(options);
-
-  Transform.call(this, options);
-}
-
-PassThrough.prototype._transform = function (chunk, encoding, cb) {
-  cb(null, chunk);
-};
-},{"./_stream_transform":72,"core-util-is":44,"inherits":56}],71:[function(require,module,exports){
-(function (process,global){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-module.exports = Readable;
-
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
-
-/*<replacement>*/
-var Duplex;
-/*</replacement>*/
-
-Readable.ReadableState = ReadableState;
-
-/*<replacement>*/
-var EE = require('events').EventEmitter;
-
-var EElistenerCount = function (emitter, type) {
-  return emitter.listeners(type).length;
-};
-/*</replacement>*/
-
-/*<replacement>*/
-var Stream = require('./internal/streams/stream');
-/*</replacement>*/
-
-/*<replacement>*/
-
-var Buffer = require('safe-buffer').Buffer;
-var OurUint8Array = global.Uint8Array || function () {};
-function _uint8ArrayToBuffer(chunk) {
-  return Buffer.from(chunk);
-}
-function _isUint8Array(obj) {
-  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
-}
-
-/*</replacement>*/
-
-/*<replacement>*/
-var util = Object.create(require('core-util-is'));
-util.inherits = require('inherits');
-/*</replacement>*/
-
-/*<replacement>*/
-var debugUtil = require('util');
-var debug = void 0;
-if (debugUtil && debugUtil.debuglog) {
-  debug = debugUtil.debuglog('stream');
-} else {
-  debug = function () {};
-}
-/*</replacement>*/
-
-var BufferList = require('./internal/streams/BufferList');
-var destroyImpl = require('./internal/streams/destroy');
-var StringDecoder;
-
-util.inherits(Readable, Stream);
-
-var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
-
-function prependListener(emitter, event, fn) {
-  // Sadly this is not cacheable as some libraries bundle their own
-  // event emitter implementation with them.
-  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
-
-  // This is a hack to make sure that our error handler is attached before any
-  // userland ones.  NEVER DO THIS. This is here only because this code needs
-  // to continue to work with older versions of Node.js that do not include
-  // the prependListener() method. The goal is to eventually remove this hack.
-  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
-}
-
-function ReadableState(options, stream) {
-  Duplex = Duplex || require('./_stream_duplex');
-
-  options = options || {};
-
-  // Duplex streams are both readable and writable, but share
-  // the same options object.
-  // However, some cases require setting options to different
-  // values for the readable and the writable sides of the duplex stream.
-  // These options can be provided separately as readableXXX and writableXXX.
-  var isDuplex = stream instanceof Duplex;
-
-  // object stream flag. Used to make read(n) ignore n and to
-  // make all the buffer merging and length checks go away
-  this.objectMode = !!options.objectMode;
-
-  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
-
-  // the point at which it stops calling _read() to fill the buffer
-  // Note: 0 is a valid value, means "don't call _read preemptively ever"
-  var hwm = options.highWaterMark;
-  var readableHwm = options.readableHighWaterMark;
-  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-
-  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
-
-  // cast to ints.
-  this.highWaterMark = Math.floor(this.highWaterMark);
-
-  // A linked list is used to store data chunks instead of an array because the
-  // linked list can remove elements from the beginning faster than
-  // array.shift()
-  this.buffer = new BufferList();
-  this.length = 0;
-  this.pipes = null;
-  this.pipesCount = 0;
-  this.flowing = null;
-  this.ended = false;
-  this.endEmitted = false;
-  this.reading = false;
-
-  // a flag to be able to tell if the event 'readable'/'data' is emitted
-  // immediately, or on a later tick.  We set this to true at first, because
-  // any actions that shouldn't happen until "later" should generally also
-  // not happen before the first read call.
-  this.sync = true;
-
-  // whenever we return null, then we set a flag to say
-  // that we're awaiting a 'readable' event emission.
-  this.needReadable = false;
-  this.emittedReadable = false;
-  this.readableListening = false;
-  this.resumeScheduled = false;
-
-  // has it been destroyed
-  this.destroyed = false;
-
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-  // the number of writers that are awaiting a drain event in .pipe()s
-  this.awaitDrain = 0;
-
-  // if true, a maybeReadMore has been scheduled
-  this.readingMore = false;
-
-  this.decoder = null;
-  this.encoding = null;
-  if (options.encoding) {
-    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
-    this.decoder = new StringDecoder(options.encoding);
-    this.encoding = options.encoding;
-  }
-}
-
-function Readable(options) {
-  Duplex = Duplex || require('./_stream_duplex');
-
-  if (!(this instanceof Readable)) return new Readable(options);
-
-  this._readableState = new ReadableState(options, this);
-
-  // legacy
-  this.readable = true;
-
-  if (options) {
-    if (typeof options.read === 'function') this._read = options.read;
-
-    if (typeof options.destroy === 'function') this._destroy = options.destroy;
-  }
-
-  Stream.call(this);
-}
-
-Object.defineProperty(Readable.prototype, 'destroyed', {
-  get: function () {
-    if (this._readableState === undefined) {
-      return false;
-    }
-    return this._readableState.destroyed;
-  },
-  set: function (value) {
-    // we ignore the value if the stream
-    // has not been initialized yet
-    if (!this._readableState) {
-      return;
-    }
-
-    // backward compatibility, the user is explicitly
-    // managing destroyed
-    this._readableState.destroyed = value;
-  }
-});
-
-Readable.prototype.destroy = destroyImpl.destroy;
-Readable.prototype._undestroy = destroyImpl.undestroy;
-Readable.prototype._destroy = function (err, cb) {
-  this.push(null);
-  cb(err);
-};
-
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function (chunk, encoding) {
-  var state = this._readableState;
-  var skipChunkCheck;
-
-  if (!state.objectMode) {
-    if (typeof chunk === 'string') {
-      encoding = encoding || state.defaultEncoding;
-      if (encoding !== state.encoding) {
-        chunk = Buffer.from(chunk, encoding);
-        encoding = '';
-      }
-      skipChunkCheck = true;
-    }
-  } else {
-    skipChunkCheck = true;
-  }
-
-  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
-};
-
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function (chunk) {
-  return readableAddChunk(this, chunk, null, true, false);
-};
-
-function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
-  var state = stream._readableState;
-  if (chunk === null) {
-    state.reading = false;
-    onEofChunk(stream, state);
-  } else {
-    var er;
-    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
-    if (er) {
-      stream.emit('error', er);
-    } else if (state.objectMode || chunk && chunk.length > 0) {
-      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
-        chunk = _uint8ArrayToBuffer(chunk);
-      }
-
-      if (addToFront) {
-        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
-      } else if (state.ended) {
-        stream.emit('error', new Error('stream.push() after EOF'));
-      } else {
-        state.reading = false;
-        if (state.decoder && !encoding) {
-          chunk = state.decoder.write(chunk);
-          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
-        } else {
-          addChunk(stream, state, chunk, false);
-        }
-      }
-    } else if (!addToFront) {
-      state.reading = false;
-    }
-  }
-
-  return needMoreData(state);
-}
-
-function addChunk(stream, state, chunk, addToFront) {
-  if (state.flowing && state.length === 0 && !state.sync) {
-    stream.emit('data', chunk);
-    stream.read(0);
-  } else {
-    // update the buffer info.
-    state.length += state.objectMode ? 1 : chunk.length;
-    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
-
-    if (state.needReadable) emitReadable(stream);
-  }
-  maybeReadMore(stream, state);
-}
-
-function chunkInvalid(state, chunk) {
-  var er;
-  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  return er;
-}
-
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes.  This is to work around cases where hwm=0,
-// such as the repl.  Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
-  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
-}
-
-Readable.prototype.isPaused = function () {
-  return this._readableState.flowing === false;
-};
-
-// backwards compatibility.
-Readable.prototype.setEncoding = function (enc) {
-  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
-  this._readableState.decoder = new StringDecoder(enc);
-  this._readableState.encoding = enc;
-  return this;
-};
-
-// Don't raise the hwm > 8MB
-var MAX_HWM = 0x800000;
-function computeNewHighWaterMark(n) {
-  if (n >= MAX_HWM) {
-    n = MAX_HWM;
-  } else {
-    // Get the next highest power of 2 to prevent increasing hwm excessively in
-    // tiny amounts
-    n--;
-    n |= n >>> 1;
-    n |= n >>> 2;
-    n |= n >>> 4;
-    n |= n >>> 8;
-    n |= n >>> 16;
-    n++;
-  }
-  return n;
-}
-
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function howMuchToRead(n, state) {
-  if (n <= 0 || state.length === 0 && state.ended) return 0;
-  if (state.objectMode) return 1;
-  if (n !== n) {
-    // Only flow one buffer at a time
-    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
-  }
-  // If we're asking for more than the current hwm, then raise the hwm.
-  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
-  if (n <= state.length) return n;
-  // Don't have enough
-  if (!state.ended) {
-    state.needReadable = true;
-    return 0;
-  }
-  return state.length;
-}
-
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function (n) {
-  debug('read', n);
-  n = parseInt(n, 10);
-  var state = this._readableState;
-  var nOrig = n;
-
-  if (n !== 0) state.emittedReadable = false;
-
-  // if we're doing read(0) to trigger a readable event, but we
-  // already have a bunch of data in the buffer, then just trigger
-  // the 'readable' event and move on.
-  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
-    debug('read: emitReadable', state.length, state.ended);
-    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
-    return null;
-  }
-
-  n = howMuchToRead(n, state);
-
-  // if we've ended, and we're now clear, then finish it up.
-  if (n === 0 && state.ended) {
-    if (state.length === 0) endReadable(this);
-    return null;
-  }
-
-  // All the actual chunk generation logic needs to be
-  // *below* the call to _read.  The reason is that in certain
-  // synthetic stream cases, such as passthrough streams, _read
-  // may be a completely synchronous operation which may change
-  // the state of the read buffer, providing enough data when
-  // before there was *not* enough.
-  //
-  // So, the steps are:
-  // 1. Figure out what the state of things will be after we do
-  // a read from the buffer.
-  //
-  // 2. If that resulting state will trigger a _read, then call _read.
-  // Note that this may be asynchronous, or synchronous.  Yes, it is
-  // deeply ugly to write APIs this way, but that still doesn't mean
-  // that the Readable class should behave improperly, as streams are
-  // designed to be sync/async agnostic.
-  // Take note if the _read call is sync or async (ie, if the read call
-  // has returned yet), so that we know whether or not it's safe to emit
-  // 'readable' etc.
-  //
-  // 3. Actually pull the requested chunks out of the buffer and return.
-
-  // if we need a readable event, then we need to do some reading.
-  var doRead = state.needReadable;
-  debug('need readable', doRead);
-
-  // if we currently have less than the highWaterMark, then also read some
-  if (state.length === 0 || state.length - n < state.highWaterMark) {
-    doRead = true;
-    debug('length less than watermark', doRead);
-  }
-
-  // however, if we've ended, then there's no point, and if we're already
-  // reading, then it's unnecessary.
-  if (state.ended || state.reading) {
-    doRead = false;
-    debug('reading or ended', doRead);
-  } else if (doRead) {
-    debug('do read');
-    state.reading = true;
-    state.sync = true;
-    // if the length is currently zero, then we *need* a readable event.
-    if (state.length === 0) state.needReadable = true;
-    // call internal read method
-    this._read(state.highWaterMark);
-    state.sync = false;
-    // If _read pushed data synchronously, then `reading` will be false,
-    // and we need to re-evaluate how much data we can return to the user.
-    if (!state.reading) n = howMuchToRead(nOrig, state);
-  }
-
-  var ret;
-  if (n > 0) ret = fromList(n, state);else ret = null;
-
-  if (ret === null) {
-    state.needReadable = true;
-    n = 0;
-  } else {
-    state.length -= n;
-  }
-
-  if (state.length === 0) {
-    // If we have nothing in the buffer, then we want to know
-    // as soon as we *do* get something into the buffer.
-    if (!state.ended) state.needReadable = true;
-
-    // If we tried to read() past the EOF, then emit end on the next tick.
-    if (nOrig !== n && state.ended) endReadable(this);
-  }
-
-  if (ret !== null) this.emit('data', ret);
-
-  return ret;
-};
-
-function onEofChunk(stream, state) {
-  if (state.ended) return;
-  if (state.decoder) {
-    var chunk = state.decoder.end();
-    if (chunk && chunk.length) {
-      state.buffer.push(chunk);
-      state.length += state.objectMode ? 1 : chunk.length;
-    }
-  }
-  state.ended = true;
-
-  // emit 'readable' now to make sure it gets picked up.
-  emitReadable(stream);
-}
-
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow.  This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
-  var state = stream._readableState;
-  state.needReadable = false;
-  if (!state.emittedReadable) {
-    debug('emitReadable', state.flowing);
-    state.emittedReadable = true;
-    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
-  }
-}
-
-function emitReadable_(stream) {
-  debug('emit readable');
-  stream.emit('readable');
-  flow(stream);
-}
-
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data.  that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
-  if (!state.readingMore) {
-    state.readingMore = true;
-    pna.nextTick(maybeReadMore_, stream, state);
-  }
-}
-
-function maybeReadMore_(stream, state) {
-  var len = state.length;
-  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
-    debug('maybeReadMore read 0');
-    stream.read(0);
-    if (len === state.length)
-      // didn't get any data, stop spinning.
-      break;else len = state.length;
-  }
-  state.readingMore = false;
-}
-
-// abstract method.  to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function (n) {
-  this.emit('error', new Error('_read() is not implemented'));
-};
-
-Readable.prototype.pipe = function (dest, pipeOpts) {
-  var src = this;
-  var state = this._readableState;
-
-  switch (state.pipesCount) {
-    case 0:
-      state.pipes = dest;
-      break;
-    case 1:
-      state.pipes = [state.pipes, dest];
-      break;
-    default:
-      state.pipes.push(dest);
-      break;
-  }
-  state.pipesCount += 1;
-  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
-
-  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
-
-  var endFn = doEnd ? onend : unpipe;
-  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
-
-  dest.on('unpipe', onunpipe);
-  function onunpipe(readable, unpipeInfo) {
-    debug('onunpipe');
-    if (readable === src) {
-      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
-        unpipeInfo.hasUnpiped = true;
-        cleanup();
-      }
-    }
-  }
-
-  function onend() {
-    debug('onend');
-    dest.end();
-  }
-
-  // when the dest drains, it reduces the awaitDrain counter
-  // on the source.  This would be more elegant with a .once()
-  // handler in flow(), but adding and removing repeatedly is
-  // too slow.
-  var ondrain = pipeOnDrain(src);
-  dest.on('drain', ondrain);
-
-  var cleanedUp = false;
-  function cleanup() {
-    debug('cleanup');
-    // cleanup event handlers once the pipe is broken
-    dest.removeListener('close', onclose);
-    dest.removeListener('finish', onfinish);
-    dest.removeListener('drain', ondrain);
-    dest.removeListener('error', onerror);
-    dest.removeListener('unpipe', onunpipe);
-    src.removeListener('end', onend);
-    src.removeListener('end', unpipe);
-    src.removeListener('data', ondata);
-
-    cleanedUp = true;
-
-    // if the reader is waiting for a drain event from this
-    // specific writer, then it would cause it to never start
-    // flowing again.
-    // So, if this is awaiting a drain, then we just call it now.
-    // If we don't know, then assume that we are waiting for one.
-    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
-  }
-
-  // If the user pushes more data while we're writing to dest then we'll end up
-  // in ondata again. However, we only want to increase awaitDrain once because
-  // dest will only emit one 'drain' event for the multiple writes.
-  // => Introduce a guard on increasing awaitDrain.
-  var increasedAwaitDrain = false;
-  src.on('data', ondata);
-  function ondata(chunk) {
-    debug('ondata');
-    increasedAwaitDrain = false;
-    var ret = dest.write(chunk);
-    if (false === ret && !increasedAwaitDrain) {
-      // If the user unpiped during `dest.write()`, it is possible
-      // to get stuck in a permanently paused state if that write
-      // also returned false.
-      // => Check whether `dest` is still a piping destination.
-      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
-        debug('false write response, pause', src._readableState.awaitDrain);
-        src._readableState.awaitDrain++;
-        increasedAwaitDrain = true;
-      }
-      src.pause();
-    }
-  }
-
-  // if the dest has an error, then stop piping into it.
-  // however, don't suppress the throwing behavior for this.
-  function onerror(er) {
-    debug('onerror', er);
-    unpipe();
-    dest.removeListener('error', onerror);
-    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
-  }
-
-  // Make sure our error handler is attached before userland ones.
-  prependListener(dest, 'error', onerror);
-
-  // Both close and finish should trigger unpipe, but only once.
-  function onclose() {
-    dest.removeListener('finish', onfinish);
-    unpipe();
-  }
-  dest.once('close', onclose);
-  function onfinish() {
-    debug('onfinish');
-    dest.removeListener('close', onclose);
-    unpipe();
-  }
-  dest.once('finish', onfinish);
-
-  function unpipe() {
-    debug('unpipe');
-    src.unpipe(dest);
-  }
-
-  // tell the dest that it's being piped to
-  dest.emit('pipe', src);
-
-  // start the flow if it hasn't been started already.
-  if (!state.flowing) {
-    debug('pipe resume');
-    src.resume();
-  }
-
-  return dest;
-};
-
-function pipeOnDrain(src) {
-  return function () {
-    var state = src._readableState;
-    debug('pipeOnDrain', state.awaitDrain);
-    if (state.awaitDrain) state.awaitDrain--;
-    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
-      state.flowing = true;
-      flow(src);
-    }
-  };
-}
-
-Readable.prototype.unpipe = function (dest) {
-  var state = this._readableState;
-  var unpipeInfo = { hasUnpiped: false };
-
-  // if we're not piping anywhere, then do nothing.
-  if (state.pipesCount === 0) return this;
-
-  // just one destination.  most common case.
-  if (state.pipesCount === 1) {
-    // passed in one, but it's not the right one.
-    if (dest && dest !== state.pipes) return this;
-
-    if (!dest) dest = state.pipes;
-
-    // got a match.
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-    if (dest) dest.emit('unpipe', this, unpipeInfo);
-    return this;
-  }
-
-  // slow case. multiple pipe destinations.
-
-  if (!dest) {
-    // remove all.
-    var dests = state.pipes;
-    var len = state.pipesCount;
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-
-    for (var i = 0; i < len; i++) {
-      dests[i].emit('unpipe', this, unpipeInfo);
-    }return this;
-  }
-
-  // try to find the right one.
-  var index = indexOf(state.pipes, dest);
-  if (index === -1) return this;
-
-  state.pipes.splice(index, 1);
-  state.pipesCount -= 1;
-  if (state.pipesCount === 1) state.pipes = state.pipes[0];
-
-  dest.emit('unpipe', this, unpipeInfo);
-
-  return this;
-};
-
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function (ev, fn) {
-  var res = Stream.prototype.on.call(this, ev, fn);
-
-  if (ev === 'data') {
-    // Start flowing on next tick if stream isn't explicitly paused
-    if (this._readableState.flowing !== false) this.resume();
-  } else if (ev === 'readable') {
-    var state = this._readableState;
-    if (!state.endEmitted && !state.readableListening) {
-      state.readableListening = state.needReadable = true;
-      state.emittedReadable = false;
-      if (!state.reading) {
-        pna.nextTick(nReadingNextTick, this);
-      } else if (state.length) {
-        emitReadable(this);
-      }
-    }
-  }
-
-  return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
-
-function nReadingNextTick(self) {
-  debug('readable nexttick read 0');
-  self.read(0);
-}
-
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function () {
-  var state = this._readableState;
-  if (!state.flowing) {
-    debug('resume');
-    state.flowing = true;
-    resume(this, state);
-  }
-  return this;
-};
-
-function resume(stream, state) {
-  if (!state.resumeScheduled) {
-    state.resumeScheduled = true;
-    pna.nextTick(resume_, stream, state);
-  }
-}
-
-function resume_(stream, state) {
-  if (!state.reading) {
-    debug('resume read 0');
-    stream.read(0);
-  }
-
-  state.resumeScheduled = false;
-  state.awaitDrain = 0;
-  stream.emit('resume');
-  flow(stream);
-  if (state.flowing && !state.reading) stream.read(0);
-}
-
-Readable.prototype.pause = function () {
-  debug('call pause flowing=%j', this._readableState.flowing);
-  if (false !== this._readableState.flowing) {
-    debug('pause');
-    this._readableState.flowing = false;
-    this.emit('pause');
-  }
-  return this;
-};
-
-function flow(stream) {
-  var state = stream._readableState;
-  debug('flow', state.flowing);
-  while (state.flowing && stream.read() !== null) {}
-}
-
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function (stream) {
-  var _this = this;
-
-  var state = this._readableState;
-  var paused = false;
-
-  stream.on('end', function () {
-    debug('wrapped end');
-    if (state.decoder && !state.ended) {
-      var chunk = state.decoder.end();
-      if (chunk && chunk.length) _this.push(chunk);
-    }
-
-    _this.push(null);
-  });
-
-  stream.on('data', function (chunk) {
-    debug('wrapped data');
-    if (state.decoder) chunk = state.decoder.write(chunk);
-
-    // don't skip over falsy values in objectMode
-    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
-
-    var ret = _this.push(chunk);
-    if (!ret) {
-      paused = true;
-      stream.pause();
-    }
-  });
-
-  // proxy all the other methods.
-  // important when wrapping filters and duplexes.
-  for (var i in stream) {
-    if (this[i] === undefined && typeof stream[i] === 'function') {
-      this[i] = function (method) {
-        return function () {
-          return stream[method].apply(stream, arguments);
-        };
-      }(i);
-    }
-  }
-
-  // proxy certain important events.
-  for (var n = 0; n < kProxyEvents.length; n++) {
-    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
-  }
-
-  // when we try to consume some more bytes, simply unpause the
-  // underlying stream.
-  this._read = function (n) {
-    debug('wrapped _read', n);
-    if (paused) {
-      paused = false;
-      stream.resume();
-    }
-  };
-
-  return this;
-};
-
-Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
-  // making it explicit this property is not enumerable
-  // because otherwise some prototype manipulation in
-  // userland will fail
-  enumerable: false,
-  get: function () {
-    return this._readableState.highWaterMark;
-  }
-});
-
-// exposed for testing purposes only.
-Readable._fromList = fromList;
-
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function fromList(n, state) {
-  // nothing buffered
-  if (state.length === 0) return null;
-
-  var ret;
-  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
-    // read it all, truncate the list
-    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
-    state.buffer.clear();
-  } else {
-    // read part of list
-    ret = fromListPartial(n, state.buffer, state.decoder);
-  }
-
-  return ret;
-}
-
-// Extracts only enough buffered data to satisfy the amount requested.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function fromListPartial(n, list, hasStrings) {
-  var ret;
-  if (n < list.head.data.length) {
-    // slice is the same for buffers and strings
-    ret = list.head.data.slice(0, n);
-    list.head.data = list.head.data.slice(n);
-  } else if (n === list.head.data.length) {
-    // first chunk is a perfect match
-    ret = list.shift();
-  } else {
-    // result spans more than one buffer
-    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
-  }
-  return ret;
-}
-
-// Copies a specified amount of characters from the list of buffered data
-// chunks.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function copyFromBufferString(n, list) {
-  var p = list.head;
-  var c = 1;
-  var ret = p.data;
-  n -= ret.length;
-  while (p = p.next) {
-    var str = p.data;
-    var nb = n > str.length ? str.length : n;
-    if (nb === str.length) ret += str;else ret += str.slice(0, n);
-    n -= nb;
-    if (n === 0) {
-      if (nb === str.length) {
-        ++c;
-        if (p.next) list.head = p.next;else list.head = list.tail = null;
-      } else {
-        list.head = p;
-        p.data = str.slice(nb);
-      }
-      break;
-    }
-    ++c;
-  }
-  list.length -= c;
-  return ret;
-}
-
-// Copies a specified amount of bytes from the list of buffered data chunks.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function copyFromBuffer(n, list) {
-  var ret = Buffer.allocUnsafe(n);
-  var p = list.head;
-  var c = 1;
-  p.data.copy(ret);
-  n -= p.data.length;
-  while (p = p.next) {
-    var buf = p.data;
-    var nb = n > buf.length ? buf.length : n;
-    buf.copy(ret, ret.length - n, 0, nb);
-    n -= nb;
-    if (n === 0) {
-      if (nb === buf.length) {
-        ++c;
-        if (p.next) list.head = p.next;else list.head = list.tail = null;
-      } else {
-        list.head = p;
-        p.data = buf.slice(nb);
-      }
-      break;
-    }
-    ++c;
-  }
-  list.length -= c;
-  return ret;
-}
-
-function endReadable(stream) {
-  var state = stream._readableState;
-
-  // If we get here before consuming all the bytes, then that is a
-  // bug in node.  Should never happen.
-  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
-
-  if (!state.endEmitted) {
-    state.ended = true;
-    pna.nextTick(endReadableNT, state, stream);
-  }
-}
-
-function endReadableNT(state, stream) {
-  // Check that we didn't get one last unshift.
-  if (!state.endEmitted && state.length === 0) {
-    state.endEmitted = true;
-    stream.readable = false;
-    stream.emit('end');
-  }
-}
-
-function indexOf(xs, x) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    if (xs[i] === x) return i;
-  }
-  return -1;
-}
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":69,"./internal/streams/BufferList":74,"./internal/streams/destroy":75,"./internal/streams/stream":76,"_process":67,"core-util-is":44,"events":50,"inherits":56,"isarray":77,"process-nextick-args":66,"safe-buffer":82,"string_decoder/":84,"util":40}],72:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a transform stream is a readable/writable stream where you do
-// something with the data.  Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored.  (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation.  For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes.  When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up.  When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer.  When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks.  If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk.  However,
-// a pathological inflate type of transform can cause excessive buffering
-// here.  For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output.  In this case, you could write a very small
-// amount of input, and end up with a very large amount of output.  In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform.  A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
-
-'use strict';
-
-module.exports = Transform;
-
-var Duplex = require('./_stream_duplex');
-
-/*<replacement>*/
-var util = Object.create(require('core-util-is'));
-util.inherits = require('inherits');
-/*</replacement>*/
-
-util.inherits(Transform, Duplex);
-
-function afterTransform(er, data) {
-  var ts = this._transformState;
-  ts.transforming = false;
-
-  var cb = ts.writecb;
-
-  if (!cb) {
-    return this.emit('error', new Error('write callback called multiple times'));
-  }
-
-  ts.writechunk = null;
-  ts.writecb = null;
-
-  if (data != null) // single equals check for both `null` and `undefined`
-    this.push(data);
-
-  cb(er);
-
-  var rs = this._readableState;
-  rs.reading = false;
-  if (rs.needReadable || rs.length < rs.highWaterMark) {
-    this._read(rs.highWaterMark);
-  }
-}
-
-function Transform(options) {
-  if (!(this instanceof Transform)) return new Transform(options);
-
-  Duplex.call(this, options);
-
-  this._transformState = {
-    afterTransform: afterTransform.bind(this),
-    needTransform: false,
-    transforming: false,
-    writecb: null,
-    writechunk: null,
-    writeencoding: null
-  };
-
-  // start out asking for a readable event once data is transformed.
-  this._readableState.needReadable = true;
-
-  // we have implemented the _read method, and done the other things
-  // that Readable wants before the first _read call, so unset the
-  // sync guard flag.
-  this._readableState.sync = false;
-
-  if (options) {
-    if (typeof options.transform === 'function') this._transform = options.transform;
-
-    if (typeof options.flush === 'function') this._flush = options.flush;
-  }
-
-  // When the writable side finishes, then flush out anything remaining.
-  this.on('prefinish', prefinish);
-}
-
-function prefinish() {
-  var _this = this;
-
-  if (typeof this._flush === 'function') {
-    this._flush(function (er, data) {
-      done(_this, er, data);
-    });
-  } else {
-    done(this, null, null);
-  }
-}
-
-Transform.prototype.push = function (chunk, encoding) {
-  this._transformState.needTransform = false;
-  return Duplex.prototype.push.call(this, chunk, encoding);
-};
-
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side.  You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk.  If you pass
-// an error, then that'll put the hurt on the whole operation.  If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function (chunk, encoding, cb) {
-  throw new Error('_transform() is not implemented');
-};
-
-Transform.prototype._write = function (chunk, encoding, cb) {
-  var ts = this._transformState;
-  ts.writecb = cb;
-  ts.writechunk = chunk;
-  ts.writeencoding = encoding;
-  if (!ts.transforming) {
-    var rs = this._readableState;
-    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
-  }
-};
-
-// Doesn't matter what the args are here.
-// _transform does all the work.
-// That we got here means that the readable side wants more data.
-Transform.prototype._read = function (n) {
-  var ts = this._transformState;
-
-  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
-    ts.transforming = true;
-    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
-  } else {
-    // mark that we need a transform, so that any data that comes in
-    // will get processed, now that we've asked for it.
-    ts.needTransform = true;
-  }
-};
-
-Transform.prototype._destroy = function (err, cb) {
-  var _this2 = this;
-
-  Duplex.prototype._destroy.call(this, err, function (err2) {
-    cb(err2);
-    _this2.emit('close');
-  });
-};
-
-function done(stream, er, data) {
-  if (er) return stream.emit('error', er);
-
-  if (data != null) // single equals check for both `null` and `undefined`
-    stream.push(data);
-
-  // if there's nothing in the write buffer, then that means
-  // that nothing more will ever be provided
-  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
-
-  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
-
-  return stream.push(null);
-}
-},{"./_stream_duplex":69,"core-util-is":44,"inherits":56}],73:[function(require,module,exports){
-(function (process,global,setImmediate){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, encoding, cb), and it'll handle all
-// the drain event emission and buffering.
-
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-module.exports = Writable;
-
-/* <replacement> */
-function WriteReq(chunk, encoding, cb) {
-  this.chunk = chunk;
-  this.encoding = encoding;
-  this.callback = cb;
-  this.next = null;
-}
-
-// It seems a linked list but it is not
-// there will be only 2 of these for each stream
-function CorkedRequest(state) {
-  var _this = this;
-
-  this.next = null;
-  this.entry = null;
-  this.finish = function () {
-    onCorkedFinish(_this, state);
-  };
-}
-/* </replacement> */
-
-/*<replacement>*/
-var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
-/*</replacement>*/
-
-/*<replacement>*/
-var Duplex;
-/*</replacement>*/
-
-Writable.WritableState = WritableState;
-
-/*<replacement>*/
-var util = Object.create(require('core-util-is'));
-util.inherits = require('inherits');
-/*</replacement>*/
-
-/*<replacement>*/
-var internalUtil = {
-  deprecate: require('util-deprecate')
-};
-/*</replacement>*/
-
-/*<replacement>*/
-var Stream = require('./internal/streams/stream');
-/*</replacement>*/
-
-/*<replacement>*/
-
-var Buffer = require('safe-buffer').Buffer;
-var OurUint8Array = global.Uint8Array || function () {};
-function _uint8ArrayToBuffer(chunk) {
-  return Buffer.from(chunk);
-}
-function _isUint8Array(obj) {
-  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
-}
-
-/*</replacement>*/
-
-var destroyImpl = require('./internal/streams/destroy');
-
-util.inherits(Writable, Stream);
-
-function nop() {}
-
-function WritableState(options, stream) {
-  Duplex = Duplex || require('./_stream_duplex');
-
-  options = options || {};
-
-  // Duplex streams are both readable and writable, but share
-  // the same options object.
-  // However, some cases require setting options to different
-  // values for the readable and the writable sides of the duplex stream.
-  // These options can be provided separately as readableXXX and writableXXX.
-  var isDuplex = stream instanceof Duplex;
-
-  // object stream flag to indicate whether or not this stream
-  // contains buffers or objects.
-  this.objectMode = !!options.objectMode;
-
-  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
-
-  // the point at which write() starts returning false
-  // Note: 0 is a valid value, means that we always return false if
-  // the entire buffer is not flushed immediately on write()
-  var hwm = options.highWaterMark;
-  var writableHwm = options.writableHighWaterMark;
-  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-
-  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
-
-  // cast to ints.
-  this.highWaterMark = Math.floor(this.highWaterMark);
-
-  // if _final has been called
-  this.finalCalled = false;
-
-  // drain event flag.
-  this.needDrain = false;
-  // at the start of calling end()
-  this.ending = false;
-  // when end() has been called, and returned
-  this.ended = false;
-  // when 'finish' is emitted
-  this.finished = false;
-
-  // has it been destroyed
-  this.destroyed = false;
-
-  // should we decode strings into buffers before passing to _write?
-  // this is here so that some node-core streams can optimize string
-  // handling at a lower level.
-  var noDecode = options.decodeStrings === false;
-  this.decodeStrings = !noDecode;
-
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-  // not an actual buffer we keep track of, but a measurement
-  // of how much we're waiting to get pushed to some underlying
-  // socket or file.
-  this.length = 0;
-
-  // a flag to see when we're in the middle of a write.
-  this.writing = false;
-
-  // when true all writes will be buffered until .uncork() call
-  this.corked = 0;
-
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
-
-  // a flag to know if we're processing previously buffered items, which
-  // may call the _write() callback in the same tick, so that we don't
-  // end up in an overlapped onwrite situation.
-  this.bufferProcessing = false;
-
-  // the callback that's passed to _write(chunk,cb)
-  this.onwrite = function (er) {
-    onwrite(stream, er);
-  };
-
-  // the callback that the user supplies to write(chunk,encoding,cb)
-  this.writecb = null;
-
-  // the amount that is being written when _write is called.
-  this.writelen = 0;
-
-  this.bufferedRequest = null;
-  this.lastBufferedRequest = null;
-
-  // number of pending user-supplied write callbacks
-  // this must be 0 before 'finish' can be emitted
-  this.pendingcb = 0;
-
-  // emit prefinish if the only thing we're waiting for is _write cbs
-  // This is relevant for synchronous Transform streams
-  this.prefinished = false;
-
-  // True if the error was already emitted and should not be thrown again
-  this.errorEmitted = false;
-
-  // count buffered requests
-  this.bufferedRequestCount = 0;
-
-  // allocate the first CorkedRequest, there is always
-  // one allocated and free to use, and we maintain at most two
-  this.corkedRequestsFree = new CorkedRequest(this);
-}
-
-WritableState.prototype.getBuffer = function getBuffer() {
-  var current = this.bufferedRequest;
-  var out = [];
-  while (current) {
-    out.push(current);
-    current = current.next;
-  }
-  return out;
-};
-
-(function () {
-  try {
-    Object.defineProperty(WritableState.prototype, 'buffer', {
-      get: internalUtil.deprecate(function () {
-        return this.getBuffer();
-      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
-    });
-  } catch (_) {}
-})();
-
-// Test _writableState for inheritance to account for Duplex streams,
-// whose prototype chain only points to Readable.
-var realHasInstance;
-if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
-  realHasInstance = Function.prototype[Symbol.hasInstance];
-  Object.defineProperty(Writable, Symbol.hasInstance, {
-    value: function (object) {
-      if (realHasInstance.call(this, object)) return true;
-      if (this !== Writable) return false;
-
-      return object && object._writableState instanceof WritableState;
-    }
-  });
-} else {
-  realHasInstance = function (object) {
-    return object instanceof this;
-  };
-}
-
-function Writable(options) {
-  Duplex = Duplex || require('./_stream_duplex');
-
-  // Writable ctor is applied to Duplexes, too.
-  // `realHasInstance` is necessary because using plain `instanceof`
-  // would return false, as no `_writableState` property is attached.
-
-  // Trying to use the custom `instanceof` for Writable here will also break the
-  // Node.js LazyTransform implementation, which has a non-trivial getter for
-  // `_writableState` that would lead to infinite recursion.
-  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
-    return new Writable(options);
-  }
-
-  this._writableState = new WritableState(options, this);
-
-  // legacy.
-  this.writable = true;
-
-  if (options) {
-    if (typeof options.write === 'function') this._write = options.write;
-
-    if (typeof options.writev === 'function') this._writev = options.writev;
-
-    if (typeof options.destroy === 'function') this._destroy = options.destroy;
-
-    if (typeof options.final === 'function') this._final = options.final;
-  }
-
-  Stream.call(this);
-}
-
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function () {
-  this.emit('error', new Error('Cannot pipe, not readable'));
-};
-
-function writeAfterEnd(stream, cb) {
-  var er = new Error('write after end');
-  // TODO: defer error events consistently everywhere, not just the cb
-  stream.emit('error', er);
-  pna.nextTick(cb, er);
-}
-
-// Checks that a user-supplied chunk is valid, especially for the particular
-// mode the stream is in. Currently this means that `null` is never accepted
-// and undefined/non-string values are only allowed in object mode.
-function validChunk(stream, state, chunk, cb) {
-  var valid = true;
-  var er = false;
-
-  if (chunk === null) {
-    er = new TypeError('May not write null values to stream');
-  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  if (er) {
-    stream.emit('error', er);
-    pna.nextTick(cb, er);
-    valid = false;
-  }
-  return valid;
-}
-
-Writable.prototype.write = function (chunk, encoding, cb) {
-  var state = this._writableState;
-  var ret = false;
-  var isBuf = !state.objectMode && _isUint8Array(chunk);
-
-  if (isBuf && !Buffer.isBuffer(chunk)) {
-    chunk = _uint8ArrayToBuffer(chunk);
-  }
-
-  if (typeof encoding === 'function') {
-    cb = encoding;
-    encoding = null;
-  }
-
-  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
-
-  if (typeof cb !== 'function') cb = nop;
-
-  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
-    state.pendingcb++;
-    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
-  }
-
-  return ret;
-};
-
-Writable.prototype.cork = function () {
-  var state = this._writableState;
-
-  state.corked++;
-};
-
-Writable.prototype.uncork = function () {
-  var state = this._writableState;
-
-  if (state.corked) {
-    state.corked--;
-
-    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
-  }
-};
-
-Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
-  // node::ParseEncoding() requires lower case.
-  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
-  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
-  this._writableState.defaultEncoding = encoding;
-  return this;
-};
-
-function decodeChunk(state, chunk, encoding) {
-  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
-    chunk = Buffer.from(chunk, encoding);
-  }
-  return chunk;
-}
-
-Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
-  // making it explicit this property is not enumerable
-  // because otherwise some prototype manipulation in
-  // userland will fail
-  enumerable: false,
-  get: function () {
-    return this._writableState.highWaterMark;
-  }
-});
-
-// if we're already writing something, then just put this
-// in the queue, and wait our turn.  Otherwise, call _write
-// If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
-  if (!isBuf) {
-    var newChunk = decodeChunk(state, chunk, encoding);
-    if (chunk !== newChunk) {
-      isBuf = true;
-      encoding = 'buffer';
-      chunk = newChunk;
-    }
-  }
-  var len = state.objectMode ? 1 : chunk.length;
-
-  state.length += len;
-
-  var ret = state.length < state.highWaterMark;
-  // we must ensure that previous needDrain will not be reset to false.
-  if (!ret) state.needDrain = true;
-
-  if (state.writing || state.corked) {
-    var last = state.lastBufferedRequest;
-    state.lastBufferedRequest = {
-      chunk: chunk,
-      encoding: encoding,
-      isBuf: isBuf,
-      callback: cb,
-      next: null
-    };
-    if (last) {
-      last.next = state.lastBufferedRequest;
-    } else {
-      state.bufferedRequest = state.lastBufferedRequest;
-    }
-    state.bufferedRequestCount += 1;
-  } else {
-    doWrite(stream, state, false, len, chunk, encoding, cb);
-  }
-
-  return ret;
-}
-
-function doWrite(stream, state, writev, len, chunk, encoding, cb) {
-  state.writelen = len;
-  state.writecb = cb;
-  state.writing = true;
-  state.sync = true;
-  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
-  state.sync = false;
-}
-
-function onwriteError(stream, state, sync, er, cb) {
-  --state.pendingcb;
-
-  if (sync) {
-    // defer the callback if we are being called synchronously
-    // to avoid piling up things on the stack
-    pna.nextTick(cb, er);
-    // this can emit finish, and it will always happen
-    // after error
-    pna.nextTick(finishMaybe, stream, state);
-    stream._writableState.errorEmitted = true;
-    stream.emit('error', er);
-  } else {
-    // the caller expect this to happen before if
-    // it is async
-    cb(er);
-    stream._writableState.errorEmitted = true;
-    stream.emit('error', er);
-    // this can emit finish, but finish must
-    // always follow error
-    finishMaybe(stream, state);
-  }
-}
-
-function onwriteStateUpdate(state) {
-  state.writing = false;
-  state.writecb = null;
-  state.length -= state.writelen;
-  state.writelen = 0;
-}
-
-function onwrite(stream, er) {
-  var state = stream._writableState;
-  var sync = state.sync;
-  var cb = state.writecb;
-
-  onwriteStateUpdate(state);
-
-  if (er) onwriteError(stream, state, sync, er, cb);else {
-    // Check if we're actually ready to finish, but don't emit yet
-    var finished = needFinish(state);
-
-    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
-      clearBuffer(stream, state);
-    }
-
-    if (sync) {
-      /*<replacement>*/
-      asyncWrite(afterWrite, stream, state, finished, cb);
-      /*</replacement>*/
-    } else {
-      afterWrite(stream, state, finished, cb);
-    }
-  }
-}
-
-function afterWrite(stream, state, finished, cb) {
-  if (!finished) onwriteDrain(stream, state);
-  state.pendingcb--;
-  cb();
-  finishMaybe(stream, state);
-}
-
-// Must force callback to be called on nextTick, so that we don't
-// emit 'drain' before the write() consumer gets the 'false' return
-// value, and has a chance to attach a 'drain' listener.
-function onwriteDrain(stream, state) {
-  if (state.length === 0 && state.needDrain) {
-    state.needDrain = false;
-    stream.emit('drain');
-  }
-}
-
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
-  state.bufferProcessing = true;
-  var entry = state.bufferedRequest;
-
-  if (stream._writev && entry && entry.next) {
-    // Fast case, write everything using _writev()
-    var l = state.bufferedRequestCount;
-    var buffer = new Array(l);
-    var holder = state.corkedRequestsFree;
-    holder.entry = entry;
-
-    var count = 0;
-    var allBuffers = true;
-    while (entry) {
-      buffer[count] = entry;
-      if (!entry.isBuf) allBuffers = false;
-      entry = entry.next;
-      count += 1;
-    }
-    buffer.allBuffers = allBuffers;
-
-    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
-
-    // doWrite is almost always async, defer these to save a bit of time
-    // as the hot path ends with doWrite
-    state.pendingcb++;
-    state.lastBufferedRequest = null;
-    if (holder.next) {
-      state.corkedRequestsFree = holder.next;
-      holder.next = null;
-    } else {
-      state.corkedRequestsFree = new CorkedRequest(state);
-    }
-    state.bufferedRequestCount = 0;
-  } else {
-    // Slow case, write chunks one-by-one
-    while (entry) {
-      var chunk = entry.chunk;
-      var encoding = entry.encoding;
-      var cb = entry.callback;
-      var len = state.objectMode ? 1 : chunk.length;
-
-      doWrite(stream, state, false, len, chunk, encoding, cb);
-      entry = entry.next;
-      state.bufferedRequestCount--;
-      // if we didn't call the onwrite immediately, then
-      // it means that we need to wait until it does.
-      // also, that means that the chunk and cb are currently
-      // being processed, so move the buffer counter past them.
-      if (state.writing) {
-        break;
-      }
-    }
-
-    if (entry === null) state.lastBufferedRequest = null;
-  }
-
-  state.bufferedRequest = entry;
-  state.bufferProcessing = false;
-}
-
-Writable.prototype._write = function (chunk, encoding, cb) {
-  cb(new Error('_write() is not implemented'));
-};
-
-Writable.prototype._writev = null;
-
-Writable.prototype.end = function (chunk, encoding, cb) {
-  var state = this._writableState;
-
-  if (typeof chunk === 'function') {
-    cb = chunk;
-    chunk = null;
-    encoding = null;
-  } else if (typeof encoding === 'function') {
-    cb = encoding;
-    encoding = null;
-  }
-
-  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
-
-  // .end() fully uncorks
-  if (state.corked) {
-    state.corked = 1;
-    this.uncork();
-  }
-
-  // ignore unnecessary end() calls.
-  if (!state.ending && !state.finished) endWritable(this, state, cb);
-};
-
-function needFinish(state) {
-  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
-}
-function callFinal(stream, state) {
-  stream._final(function (err) {
-    state.pendingcb--;
-    if (err) {
-      stream.emit('error', err);
-    }
-    state.prefinished = true;
-    stream.emit('prefinish');
-    finishMaybe(stream, state);
-  });
-}
-function prefinish(stream, state) {
-  if (!state.prefinished && !state.finalCalled) {
-    if (typeof stream._final === 'function') {
-      state.pendingcb++;
-      state.finalCalled = true;
-      pna.nextTick(callFinal, stream, state);
-    } else {
-      state.prefinished = true;
-      stream.emit('prefinish');
-    }
-  }
-}
-
-function finishMaybe(stream, state) {
-  var need = needFinish(state);
-  if (need) {
-    prefinish(stream, state);
-    if (state.pendingcb === 0) {
-      state.finished = true;
-      stream.emit('finish');
-    }
-  }
-  return need;
-}
-
-function endWritable(stream, state, cb) {
-  state.ending = true;
-  finishMaybe(stream, state);
-  if (cb) {
-    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
-  }
-  state.ended = true;
-  stream.writable = false;
-}
-
-function onCorkedFinish(corkReq, state, err) {
-  var entry = corkReq.entry;
-  corkReq.entry = null;
-  while (entry) {
-    var cb = entry.callback;
-    state.pendingcb--;
-    cb(err);
-    entry = entry.next;
-  }
-  if (state.corkedRequestsFree) {
-    state.corkedRequestsFree.next = corkReq;
-  } else {
-    state.corkedRequestsFree = corkReq;
-  }
-}
-
-Object.defineProperty(Writable.prototype, 'destroyed', {
-  get: function () {
-    if (this._writableState === undefined) {
-      return false;
-    }
-    return this._writableState.destroyed;
-  },
-  set: function (value) {
-    // we ignore the value if the stream
-    // has not been initialized yet
-    if (!this._writableState) {
-      return;
-    }
-
-    // backward compatibility, the user is explicitly
-    // managing destroyed
-    this._writableState.destroyed = value;
-  }
-});
-
-Writable.prototype.destroy = destroyImpl.destroy;
-Writable.prototype._undestroy = destroyImpl.undestroy;
-Writable.prototype._destroy = function (err, cb) {
-  this.end();
-  cb(err);
-};
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
-},{"./_stream_duplex":69,"./internal/streams/destroy":75,"./internal/streams/stream":76,"_process":67,"core-util-is":44,"inherits":56,"process-nextick-args":66,"safe-buffer":82,"timers":85,"util-deprecate":86}],74:[function(require,module,exports){
-'use strict';
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var Buffer = require('safe-buffer').Buffer;
-var util = require('util');
-
-function copyBuffer(src, target, offset) {
-  src.copy(target, offset);
-}
-
-module.exports = function () {
-  function BufferList() {
-    _classCallCheck(this, BufferList);
-
-    this.head = null;
-    this.tail = null;
-    this.length = 0;
-  }
-
-  BufferList.prototype.push = function push(v) {
-    var entry = { data: v, next: null };
-    if (this.length > 0) this.tail.next = entry;else this.head = entry;
-    this.tail = entry;
-    ++this.length;
-  };
-
-  BufferList.prototype.unshift = function unshift(v) {
-    var entry = { data: v, next: this.head };
-    if (this.length === 0) this.tail = entry;
-    this.head = entry;
-    ++this.length;
-  };
-
-  BufferList.prototype.shift = function shift() {
-    if (this.length === 0) return;
-    var ret = this.head.data;
-    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
-    --this.length;
-    return ret;
-  };
-
-  BufferList.prototype.clear = function clear() {
-    this.head = this.tail = null;
-    this.length = 0;
-  };
-
-  BufferList.prototype.join = function join(s) {
-    if (this.length === 0) return '';
-    var p = this.head;
-    var ret = '' + p.data;
-    while (p = p.next) {
-      ret += s + p.data;
-    }return ret;
-  };
-
-  BufferList.prototype.concat = function concat(n) {
-    if (this.length === 0) return Buffer.alloc(0);
-    if (this.length === 1) return this.head.data;
-    var ret = Buffer.allocUnsafe(n >>> 0);
-    var p = this.head;
-    var i = 0;
-    while (p) {
-      copyBuffer(p.data, ret, i);
-      i += p.data.length;
-      p = p.next;
-    }
-    return ret;
-  };
-
-  return BufferList;
-}();
-
-if (util && util.inspect && util.inspect.custom) {
-  module.exports.prototype[util.inspect.custom] = function () {
-    var obj = util.inspect({ length: this.length });
-    return this.constructor.name + ' ' + obj;
-  };
-}
-},{"safe-buffer":82,"util":40}],75:[function(require,module,exports){
-'use strict';
-
-/*<replacement>*/
-
-var pna = require('process-nextick-args');
-/*</replacement>*/
-
-// undocumented cb() API, needed for core, not for public API
-function destroy(err, cb) {
-  var _this = this;
-
-  var readableDestroyed = this._readableState && this._readableState.destroyed;
-  var writableDestroyed = this._writableState && this._writableState.destroyed;
-
-  if (readableDestroyed || writableDestroyed) {
-    if (cb) {
-      cb(err);
-    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
-      pna.nextTick(emitErrorNT, this, err);
-    }
-    return this;
-  }
-
-  // we set destroyed to true before firing error callbacks in order
-  // to make it re-entrance safe in case destroy() is called within callbacks
-
-  if (this._readableState) {
-    this._readableState.destroyed = true;
-  }
-
-  // if this is a duplex stream mark the writable part as destroyed as well
-  if (this._writableState) {
-    this._writableState.destroyed = true;
-  }
-
-  this._destroy(err || null, function (err) {
-    if (!cb && err) {
-      pna.nextTick(emitErrorNT, _this, err);
-      if (_this._writableState) {
-        _this._writableState.errorEmitted = true;
-      }
-    } else if (cb) {
-      cb(err);
-    }
-  });
-
-  return this;
-}
-
-function undestroy() {
-  if (this._readableState) {
-    this._readableState.destroyed = false;
-    this._readableState.reading = false;
-    this._readableState.ended = false;
-    this._readableState.endEmitted = false;
-  }
-
-  if (this._writableState) {
-    this._writableState.destroyed = false;
-    this._writableState.ended = false;
-    this._writableState.ending = false;
-    this._writableState.finished = false;
-    this._writableState.errorEmitted = false;
-  }
-}
-
-function emitErrorNT(self, err) {
-  self.emit('error', err);
-}
-
-module.exports = {
-  destroy: destroy,
-  undestroy: undestroy
-};
-},{"process-nextick-args":66}],76:[function(require,module,exports){
-module.exports = require('events').EventEmitter;
-
-},{"events":50}],77:[function(require,module,exports){
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
-
-},{}],78:[function(require,module,exports){
-module.exports = require('./readable').PassThrough
-
-},{"./readable":79}],79:[function(require,module,exports){
-exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = exports;
-exports.Readable = exports;
-exports.Writable = require('./lib/_stream_writable.js');
-exports.Duplex = require('./lib/_stream_duplex.js');
-exports.Transform = require('./lib/_stream_transform.js');
-exports.PassThrough = require('./lib/_stream_passthrough.js');
-
-},{"./lib/_stream_duplex.js":69,"./lib/_stream_passthrough.js":70,"./lib/_stream_readable.js":71,"./lib/_stream_transform.js":72,"./lib/_stream_writable.js":73}],80:[function(require,module,exports){
-module.exports = require('./readable').Transform
-
-},{"./readable":79}],81:[function(require,module,exports){
-module.exports = require('./lib/_stream_writable.js');
-
-},{"./lib/_stream_writable.js":73}],82:[function(require,module,exports){
-/* eslint-disable node/no-deprecated-api */
-var buffer = require('buffer')
-var Buffer = buffer.Buffer
-
-// alternative to using Object.keys for old browsers
-function copyProps (src, dst) {
-  for (var key in src) {
-    dst[key] = src[key]
-  }
-}
-if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
-  module.exports = buffer
-} else {
-  // Copy properties from require('buffer')
-  copyProps(buffer, exports)
-  exports.Buffer = SafeBuffer
-}
-
-function SafeBuffer (arg, encodingOrOffset, length) {
-  return Buffer(arg, encodingOrOffset, length)
-}
-
-// Copy static methods from Buffer
-copyProps(Buffer, SafeBuffer)
-
-SafeBuffer.from = function (arg, encodingOrOffset, length) {
-  if (typeof arg === 'number') {
-    throw new TypeError('Argument must not be a number')
-  }
-  return Buffer(arg, encodingOrOffset, length)
-}
-
-SafeBuffer.alloc = function (size, fill, encoding) {
-  if (typeof size !== 'number') {
-    throw new TypeError('Argument must be a number')
-  }
-  var buf = Buffer(size)
-  if (fill !== undefined) {
-    if (typeof encoding === 'string') {
-      buf.fill(fill, encoding)
-    } else {
-      buf.fill(fill)
-    }
-  } else {
-    buf.fill(0)
-  }
-  return buf
-}
-
-SafeBuffer.allocUnsafe = function (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('Argument must be a number')
-  }
-  return Buffer(size)
-}
-
-SafeBuffer.allocUnsafeSlow = function (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('Argument must be a number')
-  }
-  return buffer.SlowBuffer(size)
-}
-
-},{"buffer":43}],83:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-module.exports = Stream;
-
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
-
-inherits(Stream, EE);
-Stream.Readable = require('readable-stream/readable.js');
-Stream.Writable = require('readable-stream/writable.js');
-Stream.Duplex = require('readable-stream/duplex.js');
-Stream.Transform = require('readable-stream/transform.js');
-Stream.PassThrough = require('readable-stream/passthrough.js');
-
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
-
-
-
-// old-style streams.  Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
-
-function Stream() {
-  EE.call(this);
-}
-
-Stream.prototype.pipe = function(dest, options) {
-  var source = this;
-
-  function ondata(chunk) {
-    if (dest.writable) {
-      if (false === dest.write(chunk) && source.pause) {
-        source.pause();
-      }
-    }
-  }
-
-  source.on('data', ondata);
-
-  function ondrain() {
-    if (source.readable && source.resume) {
-      source.resume();
-    }
-  }
-
-  dest.on('drain', ondrain);
-
-  // If the 'end' option is not supplied, dest.end() will be called when
-  // source gets the 'end' or 'close' events.  Only dest.end() once.
-  if (!dest._isStdio && (!options || options.end !== false)) {
-    source.on('end', onend);
-    source.on('close', onclose);
-  }
-
-  var didOnEnd = false;
-  function onend() {
-    if (didOnEnd) return;
-    didOnEnd = true;
-
-    dest.end();
-  }
-
-
-  function onclose() {
-    if (didOnEnd) return;
-    didOnEnd = true;
-
-    if (typeof dest.destroy === 'function') dest.destroy();
-  }
-
-  // don't leave dangling pipes when there are errors.
-  function onerror(er) {
-    cleanup();
-    if (EE.listenerCount(this, 'error') === 0) {
-      throw er; // Unhandled stream error in pipe.
-    }
-  }
-
-  source.on('error', onerror);
-  dest.on('error', onerror);
-
-  // remove all the event listeners that were added.
-  function cleanup() {
-    source.removeListener('data', ondata);
-    dest.removeListener('drain', ondrain);
-
-    source.removeListener('end', onend);
-    source.removeListener('close', onclose);
-
-    source.removeListener('error', onerror);
-    dest.removeListener('error', onerror);
-
-    source.removeListener('end', cleanup);
-    source.removeListener('close', cleanup);
-
-    dest.removeListener('close', cleanup);
-  }
-
-  source.on('end', cleanup);
-  source.on('close', cleanup);
-
-  dest.on('close', cleanup);
-
-  dest.emit('pipe', source);
-
-  // Allow for unix-like usage: A.pipe(B).pipe(C)
-  return dest;
-};
-
-},{"events":50,"inherits":56,"readable-stream/duplex.js":68,"readable-stream/passthrough.js":78,"readable-stream/readable.js":79,"readable-stream/transform.js":80,"readable-stream/writable.js":81}],84:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-'use strict';
-
-/*<replacement>*/
-
-var Buffer = require('safe-buffer').Buffer;
-/*</replacement>*/
-
-var isEncoding = Buffer.isEncoding || function (encoding) {
-  encoding = '' + encoding;
-  switch (encoding && encoding.toLowerCase()) {
-    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
-      return true;
-    default:
-      return false;
-  }
-};
-
-function _normalizeEncoding(enc) {
-  if (!enc) return 'utf8';
-  var retried;
-  while (true) {
-    switch (enc) {
-      case 'utf8':
-      case 'utf-8':
-        return 'utf8';
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return 'utf16le';
-      case 'latin1':
-      case 'binary':
-        return 'latin1';
-      case 'base64':
-      case 'ascii':
-      case 'hex':
-        return enc;
-      default:
-        if (retried) return; // undefined
-        enc = ('' + enc).toLowerCase();
-        retried = true;
-    }
-  }
-};
-
-// Do not cache `Buffer.isEncoding` when checking encoding names as some
-// modules monkey-patch it to support additional encodings
-function normalizeEncoding(enc) {
-  var nenc = _normalizeEncoding(enc);
-  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
-  return nenc || enc;
-}
-
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters.
-exports.StringDecoder = StringDecoder;
-function StringDecoder(encoding) {
-  this.encoding = normalizeEncoding(encoding);
-  var nb;
-  switch (this.encoding) {
-    case 'utf16le':
-      this.text = utf16Text;
-      this.end = utf16End;
-      nb = 4;
-      break;
-    case 'utf8':
-      this.fillLast = utf8FillLast;
-      nb = 4;
-      break;
-    case 'base64':
-      this.text = base64Text;
-      this.end = base64End;
-      nb = 3;
-      break;
-    default:
-      this.write = simpleWrite;
-      this.end = simpleEnd;
-      return;
-  }
-  this.lastNeed = 0;
-  this.lastTotal = 0;
-  this.lastChar = Buffer.allocUnsafe(nb);
-}
-
-StringDecoder.prototype.write = function (buf) {
-  if (buf.length === 0) return '';
-  var r;
-  var i;
-  if (this.lastNeed) {
-    r = this.fillLast(buf);
-    if (r === undefined) return '';
-    i = this.lastNeed;
-    this.lastNeed = 0;
-  } else {
-    i = 0;
-  }
-  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
-  return r || '';
-};
-
-StringDecoder.prototype.end = utf8End;
-
-// Returns only complete characters in a Buffer
-StringDecoder.prototype.text = utf8Text;
-
-// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
-StringDecoder.prototype.fillLast = function (buf) {
-  if (this.lastNeed <= buf.length) {
-    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
-    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
-  }
-  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
-  this.lastNeed -= buf.length;
-};
-
-// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
-// continuation byte. If an invalid byte is detected, -2 is returned.
-function utf8CheckByte(byte) {
-  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
-  return byte >> 6 === 0x02 ? -1 : -2;
-}
-
-// Checks at most 3 bytes at the end of a Buffer in order to detect an
-// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
-// needed to complete the UTF-8 character (if applicable) are returned.
-function utf8CheckIncomplete(self, buf, i) {
-  var j = buf.length - 1;
-  if (j < i) return 0;
-  var nb = utf8CheckByte(buf[j]);
-  if (nb >= 0) {
-    if (nb > 0) self.lastNeed = nb - 1;
-    return nb;
-  }
-  if (--j < i || nb === -2) return 0;
-  nb = utf8CheckByte(buf[j]);
-  if (nb >= 0) {
-    if (nb > 0) self.lastNeed = nb - 2;
-    return nb;
-  }
-  if (--j < i || nb === -2) return 0;
-  nb = utf8CheckByte(buf[j]);
-  if (nb >= 0) {
-    if (nb > 0) {
-      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
-    }
-    return nb;
-  }
-  return 0;
-}
-
-// Validates as many continuation bytes for a multi-byte UTF-8 character as
-// needed or are available. If we see a non-continuation byte where we expect
-// one, we "replace" the validated continuation bytes we've seen so far with
-// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
-// behavior. The continuation byte check is included three times in the case
-// where all of the continuation bytes for a character exist in the same buffer.
-// It is also done this way as a slight performance increase instead of using a
-// loop.
-function utf8CheckExtraBytes(self, buf, p) {
-  if ((buf[0] & 0xC0) !== 0x80) {
-    self.lastNeed = 0;
-    return '\ufffd';
-  }
-  if (self.lastNeed > 1 && buf.length > 1) {
-    if ((buf[1] & 0xC0) !== 0x80) {
-      self.lastNeed = 1;
-      return '\ufffd';
-    }
-    if (self.lastNeed > 2 && buf.length > 2) {
-      if ((buf[2] & 0xC0) !== 0x80) {
-        self.lastNeed = 2;
-        return '\ufffd';
-      }
-    }
-  }
-}
-
-// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
-function utf8FillLast(buf) {
-  var p = this.lastTotal - this.lastNeed;
-  var r = utf8CheckExtraBytes(this, buf, p);
-  if (r !== undefined) return r;
-  if (this.lastNeed <= buf.length) {
-    buf.copy(this.lastChar, p, 0, this.lastNeed);
-    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
-  }
-  buf.copy(this.lastChar, p, 0, buf.length);
-  this.lastNeed -= buf.length;
-}
-
-// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
-// partial character, the character's bytes are buffered until the required
-// number of bytes are available.
-function utf8Text(buf, i) {
-  var total = utf8CheckIncomplete(this, buf, i);
-  if (!this.lastNeed) return buf.toString('utf8', i);
-  this.lastTotal = total;
-  var end = buf.length - (total - this.lastNeed);
-  buf.copy(this.lastChar, 0, end);
-  return buf.toString('utf8', i, end);
-}
-
-// For UTF-8, a replacement character is added when ending on a partial
-// character.
-function utf8End(buf) {
-  var r = buf && buf.length ? this.write(buf) : '';
-  if (this.lastNeed) return r + '\ufffd';
-  return r;
-}
-
-// UTF-16LE typically needs two bytes per character, but even if we have an even
-// number of bytes available, we need to check if we end on a leading/high
-// surrogate. In that case, we need to wait for the next two bytes in order to
-// decode the last character properly.
-function utf16Text(buf, i) {
-  if ((buf.length - i) % 2 === 0) {
-    var r = buf.toString('utf16le', i);
-    if (r) {
-      var c = r.charCodeAt(r.length - 1);
-      if (c >= 0xD800 && c <= 0xDBFF) {
-        this.lastNeed = 2;
-        this.lastTotal = 4;
-        this.lastChar[0] = buf[buf.length - 2];
-        this.lastChar[1] = buf[buf.length - 1];
-        return r.slice(0, -1);
-      }
-    }
-    return r;
-  }
-  this.lastNeed = 1;
-  this.lastTotal = 2;
-  this.lastChar[0] = buf[buf.length - 1];
-  return buf.toString('utf16le', i, buf.length - 1);
-}
-
-// For UTF-16LE we do not explicitly append special replacement characters if we
-// end on a partial character, we simply let v8 handle that.
-function utf16End(buf) {
-  var r = buf && buf.length ? this.write(buf) : '';
-  if (this.lastNeed) {
-    var end = this.lastTotal - this.lastNeed;
-    return r + this.lastChar.toString('utf16le', 0, end);
-  }
-  return r;
-}
-
-function base64Text(buf, i) {
-  var n = (buf.length - i) % 3;
-  if (n === 0) return buf.toString('base64', i);
-  this.lastNeed = 3 - n;
-  this.lastTotal = 3;
-  if (n === 1) {
-    this.lastChar[0] = buf[buf.length - 1];
-  } else {
-    this.lastChar[0] = buf[buf.length - 2];
-    this.lastChar[1] = buf[buf.length - 1];
-  }
-  return buf.toString('base64', i, buf.length - n);
-}
-
-function base64End(buf) {
-  var r = buf && buf.length ? this.write(buf) : '';
-  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
-  return r;
-}
-
-// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
-function simpleWrite(buf) {
-  return buf.toString(this.encoding);
-}
-
-function simpleEnd(buf) {
-  return buf && buf.length ? this.write(buf) : '';
-}
-},{"safe-buffer":82}],85:[function(require,module,exports){
-(function (setImmediate,clearImmediate){
-var nextTick = require('process/browser.js').nextTick;
-var apply = Function.prototype.apply;
-var slice = Array.prototype.slice;
-var immediateIds = {};
-var nextImmediateId = 0;
-
-// DOM APIs, for completeness
-
-exports.setTimeout = function() {
-  return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
-};
-exports.setInterval = function() {
-  return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
-};
-exports.clearTimeout =
-exports.clearInterval = function(timeout) { timeout.close(); };
-
-function Timeout(id, clearFn) {
-  this._id = id;
-  this._clearFn = clearFn;
-}
-Timeout.prototype.unref = Timeout.prototype.ref = function() {};
-Timeout.prototype.close = function() {
-  this._clearFn.call(window, this._id);
-};
-
-// Does not start the time, just sets up the members needed.
-exports.enroll = function(item, msecs) {
-  clearTimeout(item._idleTimeoutId);
-  item._idleTimeout = msecs;
-};
-
-exports.unenroll = function(item) {
-  clearTimeout(item._idleTimeoutId);
-  item._idleTimeout = -1;
-};
-
-exports._unrefActive = exports.active = function(item) {
-  clearTimeout(item._idleTimeoutId);
-
-  var msecs = item._idleTimeout;
-  if (msecs >= 0) {
-    item._idleTimeoutId = setTimeout(function onTimeout() {
-      if (item._onTimeout)
-        item._onTimeout();
-    }, msecs);
-  }
-};
-
-// That's not how node.js implements it but the exposed api is the same.
-exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
-  var id = nextImmediateId++;
-  var args = arguments.length < 2 ? false : slice.call(arguments, 1);
-
-  immediateIds[id] = true;
-
-  nextTick(function onNextTick() {
-    if (immediateIds[id]) {
-      // fn.call() is faster so we optimize for the common use-case
-      // @see http://jsperf.com/call-apply-segu
-      if (args) {
-        fn.apply(null, args);
-      } else {
-        fn.call(null);
-      }
-      // Prevent ids from leaking
-      exports.clearImmediate(id);
-    }
-  });
-
-  return id;
-};
-
-exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
-  delete immediateIds[id];
-};
-}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
-},{"process/browser.js":67,"timers":85}],86:[function(require,module,exports){
-(function (global){
-
-/**
- * Module exports.
- */
-
-module.exports = deprecate;
-
-/**
- * Mark that a method should not be used.
- * Returns a modified function which warns once by default.
- *
- * If `localStorage.noDeprecation = true` is set, then it is a no-op.
- *
- * If `localStorage.throwDeprecation = true` is set, then deprecated functions
- * will throw an Error when invoked.
- *
- * If `localStorage.traceDeprecation = true` is set, then deprecated functions
- * will invoke `console.trace()` instead of `console.error()`.
- *
- * @param {Function} fn - the function to deprecate
- * @param {String} msg - the string to print to the console when `fn` is invoked
- * @returns {Function} a new "deprecated" version of `fn`
- * @api public
- */
-
-function deprecate (fn, msg) {
-  if (config('noDeprecation')) {
-    return fn;
-  }
-
-  var warned = false;
-  function deprecated() {
-    if (!warned) {
-      if (config('throwDeprecation')) {
-        throw new Error(msg);
-      } else if (config('traceDeprecation')) {
-        console.trace(msg);
-      } else {
-        console.warn(msg);
-      }
-      warned = true;
-    }
-    return fn.apply(this, arguments);
-  }
-
-  return deprecated;
-}
-
-/**
- * Checks `localStorage` for boolean values for the given `name`.
- *
- * @param {String} name
- * @returns {Boolean}
- * @api private
- */
-
-function config (name) {
-  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
-  try {
-    if (!global.localStorage) return false;
-  } catch (_) {
-    return false;
-  }
-  var val = global.localStorage[name];
-  if (null == val) return false;
-  return String(val).toLowerCase() === 'true';
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],87:[function(require,module,exports){
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
-      }
-    });
-  };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
-  }
-}
-
-},{}],88:[function(require,module,exports){
-module.exports = function isBuffer(arg) {
-  return arg && typeof arg === 'object'
-    && typeof arg.copy === 'function'
-    && typeof arg.fill === 'function'
-    && typeof arg.readUInt8 === 'function';
-}
-},{}],89:[function(require,module,exports){
-(function (process,global){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var formatRegExp = /%[sdj%]/g;
-exports.format = function(f) {
-  if (!isString(f)) {
-    var objects = [];
-    for (var i = 0; i < arguments.length; i++) {
-      objects.push(inspect(arguments[i]));
-    }
-    return objects.join(' ');
-  }
-
-  var i = 1;
-  var args = arguments;
-  var len = args.length;
-  var str = String(f).replace(formatRegExp, function(x) {
-    if (x === '%%') return '%';
-    if (i >= len) return x;
-    switch (x) {
-      case '%s': return String(args[i++]);
-      case '%d': return Number(args[i++]);
-      case '%j':
-        try {
-          return JSON.stringify(args[i++]);
-        } catch (_) {
-          return '[Circular]';
-        }
-      default:
-        return x;
-    }
-  });
-  for (var x = args[i]; i < len; x = args[++i]) {
-    if (isNull(x) || !isObject(x)) {
-      str += ' ' + x;
-    } else {
-      str += ' ' + inspect(x);
-    }
-  }
-  return str;
-};
-
-
-// Mark that a method should not be used.
-// Returns a modified function which warns once by default.
-// If --no-deprecation is set, then it is a no-op.
-exports.deprecate = function(fn, msg) {
-  // Allow for deprecating things in the process of starting up.
-  if (isUndefined(global.process)) {
-    return function() {
-      return exports.deprecate(fn, msg).apply(this, arguments);
-    };
-  }
-
-  if (process.noDeprecation === true) {
-    return fn;
-  }
-
-  var warned = false;
-  function deprecated() {
-    if (!warned) {
-      if (process.throwDeprecation) {
-        throw new Error(msg);
-      } else if (process.traceDeprecation) {
-        console.trace(msg);
-      } else {
-        console.error(msg);
-      }
-      warned = true;
-    }
-    return fn.apply(this, arguments);
-  }
-
-  return deprecated;
-};
-
-
-var debugs = {};
-var debugEnviron;
-exports.debuglog = function(set) {
-  if (isUndefined(debugEnviron))
-    debugEnviron = process.env.NODE_DEBUG || '';
-  set = set.toUpperCase();
-  if (!debugs[set]) {
-    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
-      var pid = process.pid;
-      debugs[set] = function() {
-        var msg = exports.format.apply(exports, arguments);
-        console.error('%s %d: %s', set, pid, msg);
-      };
-    } else {
-      debugs[set] = function() {};
-    }
-  }
-  return debugs[set];
-};
-
-
-/**
- * Echos the value of a value. Trys to print the value out
- * in the best way possible given the different types.
- *
- * @param {Object} obj The object to print out.
- * @param {Object} opts Optional options object that alters the output.
- */
-/* legacy: obj, showHidden, depth, colors*/
-function inspect(obj, opts) {
-  // default options
-  var ctx = {
-    seen: [],
-    stylize: stylizeNoColor
-  };
-  // legacy...
-  if (arguments.length >= 3) ctx.depth = arguments[2];
-  if (arguments.length >= 4) ctx.colors = arguments[3];
-  if (isBoolean(opts)) {
-    // legacy...
-    ctx.showHidden = opts;
-  } else if (opts) {
-    // got an "options" object
-    exports._extend(ctx, opts);
-  }
-  // set default options
-  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
-  if (isUndefined(ctx.depth)) ctx.depth = 2;
-  if (isUndefined(ctx.colors)) ctx.colors = false;
-  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
-  if (ctx.colors) ctx.stylize = stylizeWithColor;
-  return formatValue(ctx, obj, ctx.depth);
-}
-exports.inspect = inspect;
-
-
-// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
-inspect.colors = {
-  'bold' : [1, 22],
-  'italic' : [3, 23],
-  'underline' : [4, 24],
-  'inverse' : [7, 27],
-  'white' : [37, 39],
-  'grey' : [90, 39],
-  'black' : [30, 39],
-  'blue' : [34, 39],
-  'cyan' : [36, 39],
-  'green' : [32, 39],
-  'magenta' : [35, 39],
-  'red' : [31, 39],
-  'yellow' : [33, 39]
-};
-
-// Don't use 'blue' not visible on cmd.exe
-inspect.styles = {
-  'special': 'cyan',
-  'number': 'yellow',
-  'boolean': 'yellow',
-  'undefined': 'grey',
-  'null': 'bold',
-  'string': 'green',
-  'date': 'magenta',
-  // "name": intentionally not styling
-  'regexp': 'red'
-};
-
-
-function stylizeWithColor(str, styleType) {
-  var style = inspect.styles[styleType];
-
-  if (style) {
-    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
-           '\u001b[' + inspect.colors[style][1] + 'm';
-  } else {
-    return str;
-  }
-}
-
-
-function stylizeNoColor(str, styleType) {
-  return str;
-}
-
-
-function arrayToHash(array) {
-  var hash = {};
-
-  array.forEach(function(val, idx) {
-    hash[val] = true;
-  });
-
-  return hash;
-}
-
-
-function formatValue(ctx, value, recurseTimes) {
-  // Provide a hook for user-specified inspect functions.
-  // Check that value is an object with an inspect function on it
-  if (ctx.customInspect &&
-      value &&
-      isFunction(value.inspect) &&
-      // Filter out the util module, it's inspect function is special
-      value.inspect !== exports.inspect &&
-      // Also filter out any prototype objects using the circular check.
-      !(value.constructor && value.constructor.prototype === value)) {
-    var ret = value.inspect(recurseTimes, ctx);
-    if (!isString(ret)) {
-      ret = formatValue(ctx, ret, recurseTimes);
-    }
-    return ret;
-  }
-
-  // Primitive types cannot have properties
-  var primitive = formatPrimitive(ctx, value);
-  if (primitive) {
-    return primitive;
-  }
-
-  // Look up the keys of the object.
-  var keys = Object.keys(value);
-  var visibleKeys = arrayToHash(keys);
-
-  if (ctx.showHidden) {
-    keys = Object.getOwnPropertyNames(value);
-  }
-
-  // IE doesn't make error fields non-enumerable
-  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
-  if (isError(value)
-      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
-    return formatError(value);
-  }
-
-  // Some type of object without properties can be shortcutted.
-  if (keys.length === 0) {
-    if (isFunction(value)) {
-      var name = value.name ? ': ' + value.name : '';
-      return ctx.stylize('[Function' + name + ']', 'special');
-    }
-    if (isRegExp(value)) {
-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
-    }
-    if (isDate(value)) {
-      return ctx.stylize(Date.prototype.toString.call(value), 'date');
-    }
-    if (isError(value)) {
-      return formatError(value);
-    }
-  }
-
-  var base = '', array = false, braces = ['{', '}'];
-
-  // Make Array say that they are Array
-  if (isArray(value)) {
-    array = true;
-    braces = ['[', ']'];
-  }
-
-  // Make functions say that they are functions
-  if (isFunction(value)) {
-    var n = value.name ? ': ' + value.name : '';
-    base = ' [Function' + n + ']';
-  }
-
-  // Make RegExps say that they are RegExps
-  if (isRegExp(value)) {
-    base = ' ' + RegExp.prototype.toString.call(value);
-  }
-
-  // Make dates with properties first say the date
-  if (isDate(value)) {
-    base = ' ' + Date.prototype.toUTCString.call(value);
-  }
-
-  // Make error with message first say the error
-  if (isError(value)) {
-    base = ' ' + formatError(value);
-  }
-
-  if (keys.length === 0 && (!array || value.length == 0)) {
-    return braces[0] + base + braces[1];
-  }
-
-  if (recurseTimes < 0) {
-    if (isRegExp(value)) {
-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
-    } else {
-      return ctx.stylize('[Object]', 'special');
-    }
-  }
-
-  ctx.seen.push(value);
-
-  var output;
-  if (array) {
-    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
-  } else {
-    output = keys.map(function(key) {
-      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
-    });
-  }
-
-  ctx.seen.pop();
-
-  return reduceToSingleString(output, base, braces);
-}
-
-
-function formatPrimitive(ctx, value) {
-  if (isUndefined(value))
-    return ctx.stylize('undefined', 'undefined');
-  if (isString(value)) {
-    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
-                                             .replace(/'/g, "\\'")
-                                             .replace(/\\"/g, '"') + '\'';
-    return ctx.stylize(simple, 'string');
-  }
-  if (isNumber(value))
-    return ctx.stylize('' + value, 'number');
-  if (isBoolean(value))
-    return ctx.stylize('' + value, 'boolean');
-  // For some reason typeof null is "object", so special case here.
-  if (isNull(value))
-    return ctx.stylize('null', 'null');
-}
-
-
-function formatError(value) {
-  return '[' + Error.prototype.toString.call(value) + ']';
-}
-
-
-function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
-  var output = [];
-  for (var i = 0, l = value.length; i < l; ++i) {
-    if (hasOwnProperty(value, String(i))) {
-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
-          String(i), true));
-    } else {
-      output.push('');
-    }
-  }
-  keys.forEach(function(key) {
-    if (!key.match(/^\d+$/)) {
-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
-          key, true));
-    }
-  });
-  return output;
-}
-
-
-function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
-  var name, str, desc;
-  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
-  if (desc.get) {
-    if (desc.set) {
-      str = ctx.stylize('[Getter/Setter]', 'special');
-    } else {
-      str = ctx.stylize('[Getter]', 'special');
-    }
-  } else {
-    if (desc.set) {
-      str = ctx.stylize('[Setter]', 'special');
-    }
-  }
-  if (!hasOwnProperty(visibleKeys, key)) {
-    name = '[' + key + ']';
-  }
-  if (!str) {
-    if (ctx.seen.indexOf(desc.value) < 0) {
-      if (isNull(recurseTimes)) {
-        str = formatValue(ctx, desc.value, null);
-      } else {
-        str = formatValue(ctx, desc.value, recurseTimes - 1);
-      }
-      if (str.indexOf('\n') > -1) {
-        if (array) {
-          str = str.split('\n').map(function(line) {
-            return '  ' + line;
-          }).join('\n').substr(2);
-        } else {
-          str = '\n' + str.split('\n').map(function(line) {
-            return '   ' + line;
-          }).join('\n');
-        }
-      }
-    } else {
-      str = ctx.stylize('[Circular]', 'special');
-    }
-  }
-  if (isUndefined(name)) {
-    if (array && key.match(/^\d+$/)) {
-      return str;
-    }
-    name = JSON.stringify('' + key);
-    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
-      name = name.substr(1, name.length - 2);
-      name = ctx.stylize(name, 'name');
-    } else {
-      name = name.replace(/'/g, "\\'")
-                 .replace(/\\"/g, '"')
-                 .replace(/(^"|"$)/g, "'");
-      name = ctx.stylize(name, 'string');
-    }
-  }
-
-  return name + ': ' + str;
-}
-
-
-function reduceToSingleString(output, base, braces) {
-  var numLinesEst = 0;
-  var length = output.reduce(function(prev, cur) {
-    numLinesEst++;
-    if (cur.indexOf('\n') >= 0) numLinesEst++;
-    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
-  }, 0);
-
-  if (length > 60) {
-    return braces[0] +
-           (base === '' ? '' : base + '\n ') +
-           ' ' +
-           output.join(',\n  ') +
-           ' ' +
-           braces[1];
-  }
-
-  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
-}
-
-
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-function isArray(ar) {
-  return Array.isArray(ar);
-}
-exports.isArray = isArray;
-
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
-
-function isNull(arg) {
-  return arg === null;
-}
-exports.isNull = isNull;
-
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
-
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
-
-function isString(arg) {
-  return typeof arg === 'string';
-}
-exports.isString = isString;
-
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
-
-function isUndefined(arg) {
-  return arg === void 0;
-}
-exports.isUndefined = isUndefined;
-
-function isRegExp(re) {
-  return isObject(re) && objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
-
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
-
-function isDate(d) {
-  return isObject(d) && objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
-
-function isError(e) {
-  return isObject(e) &&
-      (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
-
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
-
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
-}
-exports.isPrimitive = isPrimitive;
-
-exports.isBuffer = require('./support/isBuffer');
-
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
-}
-
-
-function pad(n) {
-  return n < 10 ? '0' + n.toString(10) : n.toString(10);
-}
-
-
-var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
-              'Oct', 'Nov', 'Dec'];
-
-// 26 Feb 16:19:34
-function timestamp() {
-  var d = new Date();
-  var time = [pad(d.getHours()),
-              pad(d.getMinutes()),
-              pad(d.getSeconds())].join(':');
-  return [d.getDate(), months[d.getMonth()], time].join(' ');
-}
-
-
-// log is just a thin wrapper to console.log that prepends a timestamp
-exports.log = function() {
-  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
-};
-
-
-/**
- * Inherit the prototype methods from one constructor into another.
- *
- * The Function.prototype.inherits from lang.js rewritten as a standalone
- * function (not on Function.prototype). NOTE: If this file is to be loaded
- * during bootstrapping this function needs to be rewritten using some native
- * functions as prototype setup using normal JavaScript does not work as
- * expected during bootstrapping (see mirror.js in r114903).
- *
- * @param {function} ctor Constructor function which needs to inherit the
- *     prototype.
- * @param {function} superCtor Constructor function to inherit prototype from.
- */
-exports.inherits = require('inherits');
-
-exports._extend = function(origin, add) {
-  // Don't do anything if add isn't an object
-  if (!add || !isObject(add)) return origin;
-
-  var keys = Object.keys(add);
-  var i = keys.length;
-  while (i--) {
-    origin[keys[i]] = add[keys[i]];
-  }
-  return origin;
-};
-
-function hasOwnProperty(obj, prop) {
-  return Object.prototype.hasOwnProperty.call(obj, prop);
-}
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":88,"_process":67,"inherits":87}],90:[function(require,module,exports){
-module.exports={
-  "name": "mocha",
-  "version": "8.0.1",
-  "homepage": "https://mochajs.org/",
-  "notifyLogo": "https://ibin.co/4QuRuGjXvl36.png"
-}
-},{}]},{},[1]);
+	var reporter = "spec";
+	var slow = 75;
+	var timeout = 2000;
+	var ui = "bdd";
+	var mocharc$1 = {
+		diff: diff,
+		extension: extension,
+		"package": "./package.json",
+		reporter: reporter,
+		slow: slow,
+		timeout: timeout,
+		ui: ui,
+		"watch-ignore": [
+		"node_modules",
+		".git"
+	]
+	};
+
+	var mocharc$2 = /*#__PURE__*/Object.freeze({
+		__proto__: null,
+		diff: diff,
+		extension: extension,
+		reporter: reporter,
+		slow: slow,
+		timeout: timeout,
+		ui: ui,
+		'default': mocharc$1
+	});
+
+	/**
+	 * Provides a factory function for a {@link StatsCollector} object.
+	 * @module
+	 */
+
+
+	var constants = runner.constants;
+	var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
+	var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
+	var EVENT_SUITE_BEGIN = constants.EVENT_SUITE_BEGIN;
+	var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
+	var EVENT_TEST_PENDING = constants.EVENT_TEST_PENDING;
+	var EVENT_RUN_END = constants.EVENT_RUN_END;
+	var EVENT_TEST_END = constants.EVENT_TEST_END;
+	/**
+	 * Test statistics collector.
+	 *
+	 * @public
+	 * @typedef {Object} StatsCollector
+	 * @property {number} suites - integer count of suites run.
+	 * @property {number} tests - integer count of tests run.
+	 * @property {number} passes - integer count of passing tests.
+	 * @property {number} pending - integer count of pending tests.
+	 * @property {number} failures - integer count of failed tests.
+	 * @property {Date} start - time when testing began.
+	 * @property {Date} end - time when testing concluded.
+	 * @property {number} duration - number of msecs that testing took.
+	 */
+
+	var Date$2 = commonjsGlobal.Date;
+	/**
+	 * Provides stats such as test duration, number of tests passed / failed etc., by listening for events emitted by `runner`.
+	 *
+	 * @private
+	 * @param {Runner} runner - Runner instance
+	 * @throws {TypeError} If falsy `runner`
+	 */
+
+	function createStatsCollector(runner) {
+	  /**
+	   * @type StatsCollector
+	   */
+	  var stats = {
+	    suites: 0,
+	    tests: 0,
+	    passes: 0,
+	    pending: 0,
+	    failures: 0
+	  };
+
+	  if (!runner) {
+	    throw new TypeError('Missing runner argument');
+	  }
+
+	  runner.stats = stats;
+	  runner.once(EVENT_RUN_BEGIN, function () {
+	    stats.start = new Date$2();
+	  });
+	  runner.on(EVENT_SUITE_BEGIN, function (suite) {
+	    suite.root || stats.suites++;
+	  });
+	  runner.on(EVENT_TEST_PASS, function () {
+	    stats.passes++;
+	  });
+	  runner.on(EVENT_TEST_FAIL, function () {
+	    stats.failures++;
+	  });
+	  runner.on(EVENT_TEST_PENDING, function () {
+	    stats.pending++;
+	  });
+	  runner.on(EVENT_TEST_END, function () {
+	    stats.tests++;
+	  });
+	  runner.once(EVENT_RUN_END, function () {
+	    stats.end = new Date$2();
+	    stats.duration = stats.end - stats.start;
+	  });
+	}
+
+	var statsCollector = createStatsCollector;
+
+	var createInvalidArgumentTypeError = errors.createInvalidArgumentTypeError;
+	var isString = utils.isString;
+	var MOCHA_ID_PROP_NAME = utils.constants.MOCHA_ID_PROP_NAME;
+	var test = Test;
+	/**
+	 * Initialize a new `Test` with the given `title` and callback `fn`.
+	 *
+	 * @public
+	 * @class
+	 * @extends Runnable
+	 * @param {String} title - Test title (required)
+	 * @param {Function} [fn] - Test callback.  If omitted, the Test is considered "pending"
+	 */
+
+	function Test(title, fn) {
+	  if (!isString(title)) {
+	    throw createInvalidArgumentTypeError('Test argument "title" should be a string. Received type "' + _typeof(title) + '"', 'title', 'string');
+	  }
+
+	  this.type = 'test';
+	  runnable.call(this, title, fn);
+	  this.reset();
+	}
+	/**
+	 * Inherit from `Runnable.prototype`.
+	 */
+
+
+	utils.inherits(Test, runnable);
+	/**
+	 * Resets the state initially or for a next run.
+	 */
+
+	Test.prototype.reset = function () {
+	  runnable.prototype.reset.call(this);
+	  this.pending = !this.fn;
+	  delete this.state;
+	};
+	/**
+	 * Set or get retried test
+	 *
+	 * @private
+	 */
+
+
+	Test.prototype.retriedTest = function (n) {
+	  if (!arguments.length) {
+	    return this._retriedTest;
+	  }
+
+	  this._retriedTest = n;
+	};
+	/**
+	 * Add test to the list of tests marked `only`.
+	 *
+	 * @private
+	 */
+
+
+	Test.prototype.markOnly = function () {
+	  this.parent.appendOnlyTest(this);
+	};
+
+	Test.prototype.clone = function () {
+	  var test = new Test(this.title, this.fn);
+	  test.timeout(this.timeout());
+	  test.slow(this.slow());
+	  test.retries(this.retries());
+	  test.currentRetry(this.currentRetry());
+	  test.retriedTest(this.retriedTest() || this);
+	  test.globals(this.globals());
+	  test.parent = this.parent;
+	  test.file = this.file;
+	  test.ctx = this.ctx;
+	  return test;
+	};
+	/**
+	 * Returns an minimal object suitable for transmission over IPC.
+	 * Functions are represented by keys beginning with `$$`.
+	 * @private
+	 * @returns {Object}
+	 */
+
+
+	Test.prototype.serialize = function serialize() {
+	  return _defineProperty({
+	    $$currentRetry: this._currentRetry,
+	    $$fullTitle: this.fullTitle(),
+	    $$isPending: Boolean(this.pending),
+	    $$retriedTest: this._retriedTest || null,
+	    $$slow: this._slow,
+	    $$titlePath: this.titlePath(),
+	    body: this.body,
+	    duration: this.duration,
+	    err: this.err,
+	    parent: _defineProperty({
+	      $$fullTitle: this.parent.fullTitle()
+	    }, MOCHA_ID_PROP_NAME, this.parent.id),
+	    speed: this.speed,
+	    state: this.state,
+	    title: this.title,
+	    type: this.type,
+	    file: this.file
+	  }, MOCHA_ID_PROP_NAME, this.id);
+	};
+
+	/**
+	 @module interfaces/common
+	*/
+
+
+	var createMissingArgumentError = errors.createMissingArgumentError;
+	var createUnsupportedError = errors.createUnsupportedError;
+	var createForbiddenExclusivityError = errors.createForbiddenExclusivityError;
+	/**
+	 * Functions common to more than one interface.
+	 *
+	 * @private
+	 * @param {Suite[]} suites
+	 * @param {Context} context
+	 * @param {Mocha} mocha
+	 * @return {Object} An object containing common functions.
+	 */
+
+	var common = function common(suites, context, mocha) {
+	  /**
+	   * Check if the suite should be tested.
+	   *
+	   * @private
+	   * @param {Suite} suite - suite to check
+	   * @returns {boolean}
+	   */
+	  function shouldBeTested(suite) {
+	    return !mocha.options.grep || mocha.options.grep && mocha.options.grep.test(suite.fullTitle()) && !mocha.options.invert;
+	  }
+
+	  return {
+	    /**
+	     * This is only present if flag --delay is passed into Mocha. It triggers
+	     * root suite execution.
+	     *
+	     * @param {Suite} suite The root suite.
+	     * @return {Function} A function which runs the root suite
+	     */
+	    runWithSuite: function runWithSuite(suite) {
+	      return function run() {
+	        suite.run();
+	      };
+	    },
+
+	    /**
+	     * Execute before running tests.
+	     *
+	     * @param {string} name
+	     * @param {Function} fn
+	     */
+	    before: function before(name, fn) {
+	      suites[0].beforeAll(name, fn);
+	    },
+
+	    /**
+	     * Execute after running tests.
+	     *
+	     * @param {string} name
+	     * @param {Function} fn
+	     */
+	    after: function after(name, fn) {
+	      suites[0].afterAll(name, fn);
+	    },
+
+	    /**
+	     * Execute before each test case.
+	     *
+	     * @param {string} name
+	     * @param {Function} fn
+	     */
+	    beforeEach: function beforeEach(name, fn) {
+	      suites[0].beforeEach(name, fn);
+	    },
+
+	    /**
+	     * Execute after each test case.
+	     *
+	     * @param {string} name
+	     * @param {Function} fn
+	     */
+	    afterEach: function afterEach(name, fn) {
+	      suites[0].afterEach(name, fn);
+	    },
+	    suite: {
+	      /**
+	       * Create an exclusive Suite; convenience function
+	       * See docstring for create() below.
+	       *
+	       * @param {Object} opts
+	       * @returns {Suite}
+	       */
+	      only: function only(opts) {
+	        if (mocha.options.forbidOnly) {
+	          throw createForbiddenExclusivityError(mocha);
+	        }
+
+	        opts.isOnly = true;
+	        return this.create(opts);
+	      },
+
+	      /**
+	       * Create a Suite, but skip it; convenience function
+	       * See docstring for create() below.
+	       *
+	       * @param {Object} opts
+	       * @returns {Suite}
+	       */
+	      skip: function skip(opts) {
+	        opts.pending = true;
+	        return this.create(opts);
+	      },
+
+	      /**
+	       * Creates a suite.
+	       *
+	       * @param {Object} opts Options
+	       * @param {string} opts.title Title of Suite
+	       * @param {Function} [opts.fn] Suite Function (not always applicable)
+	       * @param {boolean} [opts.pending] Is Suite pending?
+	       * @param {string} [opts.file] Filepath where this Suite resides
+	       * @param {boolean} [opts.isOnly] Is Suite exclusive?
+	       * @returns {Suite}
+	       */
+	      create: function create(opts) {
+	        var suite$1 = suite.create(suites[0], opts.title);
+	        suite$1.pending = Boolean(opts.pending);
+	        suite$1.file = opts.file;
+	        suites.unshift(suite$1);
+
+	        if (opts.isOnly) {
+	          suite$1.markOnly();
+	        }
+
+	        if (suite$1.pending && mocha.options.forbidPending && shouldBeTested(suite$1)) {
+	          throw createUnsupportedError('Pending test forbidden');
+	        }
+
+	        if (typeof opts.fn === 'function') {
+	          opts.fn.call(suite$1);
+	          suites.shift();
+	        } else if (typeof opts.fn === 'undefined' && !suite$1.pending) {
+	          throw createMissingArgumentError('Suite "' + suite$1.fullTitle() + '" was defined but no callback was supplied. ' + 'Supply a callback or explicitly skip the suite.', 'callback', 'function');
+	        } else if (!opts.fn && suite$1.pending) {
+	          suites.shift();
+	        }
+
+	        return suite$1;
+	      }
+	    },
+	    test: {
+	      /**
+	       * Exclusive test-case.
+	       *
+	       * @param {Object} mocha
+	       * @param {Function} test
+	       * @returns {*}
+	       */
+	      only: function only(mocha, test) {
+	        if (mocha.options.forbidOnly) {
+	          throw createForbiddenExclusivityError(mocha);
+	        }
+
+	        test.markOnly();
+	        return test;
+	      },
+
+	      /**
+	       * Pending test case.
+	       *
+	       * @param {string} title
+	       */
+	      skip: function skip(title) {
+	        context.test(title);
+	      }
+	    }
+	  };
+	};
+
+	var EVENT_FILE_PRE_REQUIRE$2 = suite.constants.EVENT_FILE_PRE_REQUIRE;
+	/**
+	 * BDD-style interface:
+	 *
+	 *      describe('Array', function() {
+	 *        describe('#indexOf()', function() {
+	 *          it('should return -1 when not present', function() {
+	 *            // ...
+	 *          });
+	 *
+	 *          it('should return the index when present', function() {
+	 *            // ...
+	 *          });
+	 *        });
+	 *      });
+	 *
+	 * @param {Suite} suite Root suite.
+	 */
+
+	var bdd$1 = function bddInterface(suite) {
+	  var suites = [suite];
+	  suite.on(EVENT_FILE_PRE_REQUIRE$2, function (context, file, mocha) {
+	    var common$1 = common(suites, context, mocha);
+	    context.before = common$1.before;
+	    context.after = common$1.after;
+	    context.beforeEach = common$1.beforeEach;
+	    context.afterEach = common$1.afterEach;
+	    context.run = mocha.options.delay && common$1.runWithSuite(suite);
+	    /**
+	     * Describe a "suite" with the given `title`
+	     * and callback `fn` containing nested suites
+	     * and/or tests.
+	     */
+
+	    context.describe = context.context = function (title, fn) {
+	      return common$1.suite.create({
+	        title: title,
+	        file: file,
+	        fn: fn
+	      });
+	    };
+	    /**
+	     * Pending describe.
+	     */
+
+
+	    context.xdescribe = context.xcontext = context.describe.skip = function (title, fn) {
+	      return common$1.suite.skip({
+	        title: title,
+	        file: file,
+	        fn: fn
+	      });
+	    };
+	    /**
+	     * Exclusive suite.
+	     */
+
+
+	    context.describe.only = function (title, fn) {
+	      return common$1.suite.only({
+	        title: title,
+	        file: file,
+	        fn: fn
+	      });
+	    };
+	    /**
+	     * Describe a specification or test-case
+	     * with the given `title` and callback `fn`
+	     * acting as a thunk.
+	     */
+
+
+	    context.it = context.specify = function (title, fn) {
+	      var suite = suites[0];
+
+	      if (suite.isPending()) {
+	        fn = null;
+	      }
+
+	      var test$1 = new test(title, fn);
+	      test$1.file = file;
+	      suite.addTest(test$1);
+	      return test$1;
+	    };
+	    /**
+	     * Exclusive test-case.
+	     */
+
+
+	    context.it.only = function (title, fn) {
+	      return common$1.test.only(mocha, context.it(title, fn));
+	    };
+	    /**
+	     * Pending test case.
+	     */
+
+
+	    context.xit = context.xspecify = context.it.skip = function (title) {
+	      return context.it(title);
+	    };
+	  });
+	};
+
+	var description$3 = 'BDD or RSpec style [default]';
+	bdd$1.description = description$3;
+
+	var EVENT_FILE_PRE_REQUIRE$1 = suite.constants.EVENT_FILE_PRE_REQUIRE;
+	/**
+	 * TDD-style interface:
+	 *
+	 *      suite('Array', function() {
+	 *        suite('#indexOf()', function() {
+	 *          suiteSetup(function() {
+	 *
+	 *          });
+	 *
+	 *          test('should return -1 when not present', function() {
+	 *
+	 *          });
+	 *
+	 *          test('should return the index when present', function() {
+	 *
+	 *          });
+	 *
+	 *          suiteTeardown(function() {
+	 *
+	 *          });
+	 *        });
+	 *      });
+	 *
+	 * @param {Suite} suite Root suite.
+	 */
+
+	var tdd$1 = function tdd(suite) {
+	  var suites = [suite];
+	  suite.on(EVENT_FILE_PRE_REQUIRE$1, function (context, file, mocha) {
+	    var common$1 = common(suites, context, mocha);
+	    context.setup = common$1.beforeEach;
+	    context.teardown = common$1.afterEach;
+	    context.suiteSetup = common$1.before;
+	    context.suiteTeardown = common$1.after;
+	    context.run = mocha.options.delay && common$1.runWithSuite(suite);
+	    /**
+	     * Describe a "suite" with the given `title` and callback `fn` containing
+	     * nested suites and/or tests.
+	     */
+
+	    context.suite = function (title, fn) {
+	      return common$1.suite.create({
+	        title: title,
+	        file: file,
+	        fn: fn
+	      });
+	    };
+	    /**
+	     * Pending suite.
+	     */
+
+
+	    context.suite.skip = function (title, fn) {
+	      return common$1.suite.skip({
+	        title: title,
+	        file: file,
+	        fn: fn
+	      });
+	    };
+	    /**
+	     * Exclusive test-case.
+	     */
+
+
+	    context.suite.only = function (title, fn) {
+	      return common$1.suite.only({
+	        title: title,
+	        file: file,
+	        fn: fn
+	      });
+	    };
+	    /**
+	     * Describe a specification or test-case with the given `title` and
+	     * callback `fn` acting as a thunk.
+	     */
+
+
+	    context.test = function (title, fn) {
+	      var suite = suites[0];
+
+	      if (suite.isPending()) {
+	        fn = null;
+	      }
+
+	      var test$1 = new test(title, fn);
+	      test$1.file = file;
+	      suite.addTest(test$1);
+	      return test$1;
+	    };
+	    /**
+	     * Exclusive test-case.
+	     */
+
+
+	    context.test.only = function (title, fn) {
+	      return common$1.test.only(mocha, context.test(title, fn));
+	    };
+
+	    context.test.skip = common$1.test.skip;
+	  });
+	};
+
+	var description$2 = 'traditional "suite"/"test" instead of BDD\'s "describe"/"it"';
+	tdd$1.description = description$2;
+
+	var EVENT_FILE_PRE_REQUIRE = suite.constants.EVENT_FILE_PRE_REQUIRE;
+	/**
+	 * QUnit-style interface:
+	 *
+	 *     suite('Array');
+	 *
+	 *     test('#length', function() {
+	 *       var arr = [1,2,3];
+	 *       ok(arr.length == 3);
+	 *     });
+	 *
+	 *     test('#indexOf()', function() {
+	 *       var arr = [1,2,3];
+	 *       ok(arr.indexOf(1) == 0);
+	 *       ok(arr.indexOf(2) == 1);
+	 *       ok(arr.indexOf(3) == 2);
+	 *     });
+	 *
+	 *     suite('String');
+	 *
+	 *     test('#length', function() {
+	 *       ok('foo'.length == 3);
+	 *     });
+	 *
+	 * @param {Suite} suite Root suite.
+	 */
+
+	var qunit$1 = function qUnitInterface(suite) {
+	  var suites = [suite];
+	  suite.on(EVENT_FILE_PRE_REQUIRE, function (context, file, mocha) {
+	    var common$1 = common(suites, context, mocha);
+	    context.before = common$1.before;
+	    context.after = common$1.after;
+	    context.beforeEach = common$1.beforeEach;
+	    context.afterEach = common$1.afterEach;
+	    context.run = mocha.options.delay && common$1.runWithSuite(suite);
+	    /**
+	     * Describe a "suite" with the given `title`.
+	     */
+
+	    context.suite = function (title) {
+	      if (suites.length > 1) {
+	        suites.shift();
+	      }
+
+	      return common$1.suite.create({
+	        title: title,
+	        file: file,
+	        fn: false
+	      });
+	    };
+	    /**
+	     * Exclusive Suite.
+	     */
+
+
+	    context.suite.only = function (title) {
+	      if (suites.length > 1) {
+	        suites.shift();
+	      }
+
+	      return common$1.suite.only({
+	        title: title,
+	        file: file,
+	        fn: false
+	      });
+	    };
+	    /**
+	     * Describe a specification or test-case
+	     * with the given `title` and callback `fn`
+	     * acting as a thunk.
+	     */
+
+
+	    context.test = function (title, fn) {
+	      var test$1 = new test(title, fn);
+	      test$1.file = file;
+	      suites[0].addTest(test$1);
+	      return test$1;
+	    };
+	    /**
+	     * Exclusive test-case.
+	     */
+
+
+	    context.test.only = function (title, fn) {
+	      return common$1.test.only(mocha, context.test(title, fn));
+	    };
+
+	    context.test.skip = common$1.test.skip;
+	  });
+	};
+
+	var description$1 = 'QUnit style';
+	qunit$1.description = description$1;
+
+	/**
+	 * Exports-style (as Node.js module) interface:
+	 *
+	 *     exports.Array = {
+	 *       '#indexOf()': {
+	 *         'should return -1 when the value is not present': function() {
+	 *
+	 *         },
+	 *
+	 *         'should return the correct index when the value is present': function() {
+	 *
+	 *         }
+	 *       }
+	 *     };
+	 *
+	 * @param {Suite} suite Root suite.
+	 */
+
+
+	var exports$2 = function exports(suite$1) {
+	  var suites = [suite$1];
+	  suite$1.on(suite.constants.EVENT_FILE_REQUIRE, visit);
+
+	  function visit(obj, file) {
+	    var suite$1;
+
+	    for (var key in obj) {
+	      if (typeof obj[key] === 'function') {
+	        var fn = obj[key];
+
+	        switch (key) {
+	          case 'before':
+	            suites[0].beforeAll(fn);
+	            break;
+
+	          case 'after':
+	            suites[0].afterAll(fn);
+	            break;
+
+	          case 'beforeEach':
+	            suites[0].beforeEach(fn);
+	            break;
+
+	          case 'afterEach':
+	            suites[0].afterEach(fn);
+	            break;
+
+	          default:
+	            var test$1 = new test(key, fn);
+	            test$1.file = file;
+	            suites[0].addTest(test$1);
+	        }
+	      } else {
+	        suite$1 = suite.create(suites[0], key);
+	        suites.unshift(suite$1);
+	        visit(obj[key], file);
+	        suites.shift();
+	      }
+	    }
+	  }
+	};
+
+	var description = 'Node.js module ("exports") style';
+	exports$2.description = description;
+
+	var bdd = bdd$1;
+	var tdd = tdd$1;
+	var qunit = qunit$1;
+	var exports$1 = exports$2;
+	var interfaces = {
+	  bdd: bdd,
+	  tdd: tdd,
+	  qunit: qunit,
+	  exports: exports$1
+	};
+
+	/**
+	 * @module Context
+	 */
+
+	/**
+	 * Expose `Context`.
+	 */
+
+	var context = Context;
+	/**
+	 * Initialize a new `Context`.
+	 *
+	 * @private
+	 */
+
+	function Context() {}
+	/**
+	 * Set or get the context `Runnable` to `runnable`.
+	 *
+	 * @private
+	 * @param {Runnable} runnable
+	 * @return {Context} context
+	 */
+
+
+	Context.prototype.runnable = function (runnable) {
+	  if (!arguments.length) {
+	    return this._runnable;
+	  }
+
+	  this.test = this._runnable = runnable;
+	  return this;
+	};
+	/**
+	 * Set or get test timeout `ms`.
+	 *
+	 * @private
+	 * @param {number} ms
+	 * @return {Context} self
+	 */
+
+
+	Context.prototype.timeout = function (ms) {
+	  if (!arguments.length) {
+	    return this.runnable().timeout();
+	  }
+
+	  this.runnable().timeout(ms);
+	  return this;
+	};
+	/**
+	 * Set or get test slowness threshold `ms`.
+	 *
+	 * @private
+	 * @param {number} ms
+	 * @return {Context} self
+	 */
+
+
+	Context.prototype.slow = function (ms) {
+	  if (!arguments.length) {
+	    return this.runnable().slow();
+	  }
+
+	  this.runnable().slow(ms);
+	  return this;
+	};
+	/**
+	 * Mark a test as skipped.
+	 *
+	 * @private
+	 * @throws Pending
+	 */
+
+
+	Context.prototype.skip = function () {
+	  this.runnable().skip();
+	};
+	/**
+	 * Set or get a number of allowed retries on failed tests
+	 *
+	 * @private
+	 * @param {number} n
+	 * @return {Context} self
+	 */
+
+
+	Context.prototype.retries = function (n) {
+	  if (!arguments.length) {
+	    return this.runnable().retries();
+	  }
+
+	  this.runnable().retries(n);
+	  return this;
+	};
+
+	var mocharc = getCjsExportFromNamespace(mocharc$2);
+
+	var mocha$1 = createCommonjsModule(function (module, exports) {
+	  /*!
+	   * mocha
+	   * Copyright(c) 2011 TJ Holowaychuk <tj@vision-media.ca>
+	   * MIT Licensed
+	   */
+
+	  var warn = errors.warn,
+	      createInvalidReporterError = errors.createInvalidReporterError,
+	      createInvalidInterfaceError = errors.createInvalidInterfaceError,
+	      createMochaInstanceAlreadyDisposedError = errors.createMochaInstanceAlreadyDisposedError,
+	      createMochaInstanceAlreadyRunningError = errors.createMochaInstanceAlreadyRunningError,
+	      createUnsupportedError = errors.createUnsupportedError;
+	  var _Suite$constants = suite.constants,
+	      EVENT_FILE_PRE_REQUIRE = _Suite$constants.EVENT_FILE_PRE_REQUIRE,
+	      EVENT_FILE_POST_REQUIRE = _Suite$constants.EVENT_FILE_POST_REQUIRE,
+	      EVENT_FILE_REQUIRE = _Suite$constants.EVENT_FILE_REQUIRE;
+	  var debug = browser('mocha:mocha');
+	  exports = module.exports = Mocha;
+	  /**
+	   * A Mocha instance is a finite state machine.
+	   * These are the states it can be in.
+	   * @private
+	   */
+
+	  var mochaStates = utils.defineConstants({
+	    /**
+	     * Initial state of the mocha instance
+	     * @private
+	     */
+	    INIT: 'init',
+
+	    /**
+	     * Mocha instance is running tests
+	     * @private
+	     */
+	    RUNNING: 'running',
+
+	    /**
+	     * Mocha instance is done running tests and references to test functions and hooks are cleaned.
+	     * You can reset this state by unloading the test files.
+	     * @private
+	     */
+	    REFERENCES_CLEANED: 'referencesCleaned',
+
+	    /**
+	     * Mocha instance is disposed and can no longer be used.
+	     * @private
+	     */
+	    DISPOSED: 'disposed'
+	  });
+	  /**
+	   * To require local UIs and reporters when running in node.
+	   */
+
+	  if (!utils.isBrowser() && typeof module.paths !== 'undefined') {
+	    var cwd = utils.cwd();
+	    module.paths.push(cwd, path.join(cwd, 'node_modules'));
+	  }
+	  /**
+	   * Expose internals.
+	   * @private
+	   */
+
+
+	  exports.utils = utils;
+	  exports.interfaces = interfaces;
+	  /**
+	   * @public
+	   * @memberof Mocha
+	   */
+
+	  exports.reporters = reporters;
+	  exports.Runnable = runnable;
+	  exports.Context = context;
+	  /**
+	   *
+	   * @memberof Mocha
+	   */
+
+	  exports.Runner = runner;
+	  exports.Suite = suite;
+	  exports.Hook = hook;
+	  exports.Test = test;
+	  var currentContext;
+
+	  exports.afterEach = function () {
+	    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+	      args[_key] = arguments[_key];
+	    }
+
+	    return (currentContext.afterEach || currentContext.teardown).apply(this, args);
+	  };
+
+	  exports.after = function () {
+	    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+	      args[_key2] = arguments[_key2];
+	    }
+
+	    return (currentContext.after || currentContext.suiteTeardown).apply(this, args);
+	  };
+
+	  exports.beforeEach = function () {
+	    for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+	      args[_key3] = arguments[_key3];
+	    }
+
+	    return (currentContext.beforeEach || currentContext.setup).apply(this, args);
+	  };
+
+	  exports.before = function () {
+	    for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+	      args[_key4] = arguments[_key4];
+	    }
+
+	    return (currentContext.before || currentContext.suiteSetup).apply(this, args);
+	  };
+
+	  exports.describe = function () {
+	    for (var _len5 = arguments.length, args = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
+	      args[_key5] = arguments[_key5];
+	    }
+
+	    return (currentContext.describe || currentContext.suite).apply(this, args);
+	  };
+
+	  exports.describe.only = function () {
+	    for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {
+	      args[_key6] = arguments[_key6];
+	    }
+
+	    return (currentContext.describe || currentContext.suite).only.apply(this, args);
+	  };
+
+	  exports.describe.skip = function () {
+	    for (var _len7 = arguments.length, args = new Array(_len7), _key7 = 0; _key7 < _len7; _key7++) {
+	      args[_key7] = arguments[_key7];
+	    }
+
+	    return (currentContext.describe || currentContext.suite).skip.apply(this, args);
+	  };
+
+	  exports.it = function () {
+	    for (var _len8 = arguments.length, args = new Array(_len8), _key8 = 0; _key8 < _len8; _key8++) {
+	      args[_key8] = arguments[_key8];
+	    }
+
+	    return (currentContext.it || currentContext.test).apply(this, args);
+	  };
+
+	  exports.it.only = function () {
+	    for (var _len9 = arguments.length, args = new Array(_len9), _key9 = 0; _key9 < _len9; _key9++) {
+	      args[_key9] = arguments[_key9];
+	    }
+
+	    return (currentContext.it || currentContext.test).only.apply(this, args);
+	  };
+
+	  exports.it.skip = function () {
+	    for (var _len10 = arguments.length, args = new Array(_len10), _key10 = 0; _key10 < _len10; _key10++) {
+	      args[_key10] = arguments[_key10];
+	    }
+
+	    return (currentContext.it || currentContext.test).skip.apply(this, args);
+	  };
+
+	  exports.xdescribe = exports.describe.skip;
+	  exports.xit = exports.it.skip;
+	  exports.setup = exports.beforeEach;
+	  exports.suiteSetup = exports.before;
+	  exports.suiteTeardown = exports.after;
+	  exports.suite = exports.describe;
+	  exports.teardown = exports.afterEach;
+	  exports.test = exports.it;
+
+	  exports.run = function () {
+	    for (var _len11 = arguments.length, args = new Array(_len11), _key11 = 0; _key11 < _len11; _key11++) {
+	      args[_key11] = arguments[_key11];
+	    }
+
+	    return currentContext.run.apply(this, args);
+	  };
+	  /**
+	   * Constructs a new Mocha instance with `options`.
+	   *
+	   * @public
+	   * @class Mocha
+	   * @param {Object} [options] - Settings object.
+	   * @param {boolean} [options.allowUncaught] - Propagate uncaught errors?
+	   * @param {boolean} [options.asyncOnly] - Force `done` callback or promise?
+	   * @param {boolean} [options.bail] - Bail after first test failure?
+	   * @param {boolean} [options.checkLeaks] - Check for global variable leaks?
+	   * @param {boolean} [options.color] - Color TTY output from reporter?
+	   * @param {boolean} [options.delay] - Delay root suite execution?
+	   * @param {boolean} [options.diff] - Show diff on failure?
+	   * @param {boolean} [options.dryRun] - Report tests without running them?
+	   * @param {boolean} [options.failZero] - Fail test run if zero tests?
+	   * @param {string} [options.fgrep] - Test filter given string.
+	   * @param {boolean} [options.forbidOnly] - Tests marked `only` fail the suite?
+	   * @param {boolean} [options.forbidPending] - Pending tests fail the suite?
+	   * @param {boolean} [options.fullTrace] - Full stacktrace upon failure?
+	   * @param {string[]} [options.global] - Variables expected in global scope.
+	   * @param {RegExp|string} [options.grep] - Test filter given regular expression.
+	   * @param {boolean} [options.growl] - Enable desktop notifications?
+	   * @param {boolean} [options.inlineDiffs] - Display inline diffs?
+	   * @param {boolean} [options.invert] - Invert test filter matches?
+	   * @param {boolean} [options.noHighlighting] - Disable syntax highlighting?
+	   * @param {string|constructor} [options.reporter] - Reporter name or constructor.
+	   * @param {Object} [options.reporterOption] - Reporter settings object.
+	   * @param {number} [options.retries] - Number of times to retry failed tests.
+	   * @param {number} [options.slow] - Slow threshold value.
+	   * @param {number|string} [options.timeout] - Timeout threshold value.
+	   * @param {string} [options.ui] - Interface name.
+	   * @param {boolean} [options.parallel] - Run jobs in parallel.
+	   * @param {number} [options.jobs] - Max number of worker processes for parallel runs.
+	   * @param {MochaRootHookObject} [options.rootHooks] - Hooks to bootstrap the root suite with.
+	   * @param {string[]} [options.require] - Pathname of `rootHooks` plugin for parallel runs.
+	   * @param {boolean} [options.isWorker] - Should be `true` if `Mocha` process is running in a worker process.
+	   */
+
+
+	  function Mocha() {
+	    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+	    options = _objectSpread2(_objectSpread2({}, mocharc), options);
+	    this.files = [];
+	    this.options = options; // root suite
+
+	    this.suite = new exports.Suite('', new exports.Context(), true);
+	    this._cleanReferencesAfterRun = true;
+	    this._state = mochaStates.INIT;
+	    this.grep(options.grep).fgrep(options.fgrep).ui(options.ui).reporter(options.reporter, options.reporterOption || options.reporterOptions // for backwards compability
+	    ).slow(options.slow).global(options.global); // this guard exists because Suite#timeout does not consider `undefined` to be valid input
+
+	    if (typeof options.timeout !== 'undefined') {
+	      this.timeout(options.timeout === false ? 0 : options.timeout);
+	    }
+
+	    if ('retries' in options) {
+	      this.retries(options.retries);
+	    }
+
+	    ['allowUncaught', 'asyncOnly', 'bail', 'checkLeaks', 'color', 'delay', 'diff', 'dryRun', 'failZero', 'forbidOnly', 'forbidPending', 'fullTrace', 'growl', 'inlineDiffs', 'invert'].forEach(function (opt) {
+	      if (options[opt]) {
+	        this[opt]();
+	      }
+	    }, this);
+
+	    if (options.rootHooks) {
+	      this.rootHooks(options.rootHooks);
+	    }
+	    /**
+	     * The class which we'll instantiate in {@link Mocha#run}.  Defaults to
+	     * {@link Runner} in serial mode; changes in parallel mode.
+	     * @memberof Mocha
+	     * @private
+	     */
+
+
+	    this._runnerClass = exports.Runner;
+	    /**
+	     * Whether or not to call {@link Mocha#loadFiles} implicitly when calling
+	     * {@link Mocha#run}.  If this is `true`, then it's up to the consumer to call
+	     * {@link Mocha#loadFiles} _or_ {@link Mocha#loadFilesAsync}.
+	     * @private
+	     * @memberof Mocha
+	     */
+
+	    this._lazyLoadFiles = false;
+	    /**
+	     * It's useful for a Mocha instance to know if it's running in a worker process.
+	     * We could derive this via other means, but it's helpful to have a flag to refer to.
+	     * @memberof Mocha
+	     * @private
+	     */
+
+	    this.isWorker = Boolean(options.isWorker);
+	    this.globalSetup(options.globalSetup).globalTeardown(options.globalTeardown).enableGlobalSetup(options.enableGlobalSetup).enableGlobalTeardown(options.enableGlobalTeardown);
+
+	    if (options.parallel && (typeof options.jobs === 'undefined' || options.jobs > 1)) {
+	      debug('attempting to enable parallel mode');
+	      this.parallelMode(true);
+	    }
+	  }
+	  /**
+	   * Enables or disables bailing on the first failure.
+	   *
+	   * @public
+	   * @see [CLI option](../#-bail-b)
+	   * @param {boolean} [bail=true] - Whether to bail on first error.
+	   * @returns {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.bail = function (bail) {
+	    this.suite.bail(bail !== false);
+	    return this;
+	  };
+	  /**
+	   * @summary
+	   * Adds `file` to be loaded for execution.
+	   *
+	   * @description
+	   * Useful for generic setup code that must be included within test suite.
+	   *
+	   * @public
+	   * @see [CLI option](../#-file-filedirectoryglob)
+	   * @param {string} file - Pathname of file to be loaded.
+	   * @returns {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.addFile = function (file) {
+	    this.files.push(file);
+	    return this;
+	  };
+	  /**
+	   * Sets reporter to `reporter`, defaults to "spec".
+	   *
+	   * @public
+	   * @see [CLI option](../#-reporter-name-r-name)
+	   * @see [Reporters](../#reporters)
+	   * @param {String|Function} reporterName - Reporter name or constructor.
+	   * @param {Object} [reporterOptions] - Options used to configure the reporter.
+	   * @returns {Mocha} this
+	   * @chainable
+	   * @throws {Error} if requested reporter cannot be loaded
+	   * @example
+	   *
+	   * // Use XUnit reporter and direct its output to file
+	   * mocha.reporter('xunit', { output: '/path/to/testspec.xunit.xml' });
+	   */
+
+
+	  Mocha.prototype.reporter = function (reporterName, reporterOptions) {
+	    if (typeof reporterName === 'function') {
+	      this._reporter = reporterName;
+	    } else {
+	      reporterName = reporterName || 'spec';
+	      var reporter; // Try to load a built-in reporter.
+
+	      if (reporters[reporterName]) {
+	        reporter = reporters[reporterName];
+	      } // Try to load reporters from process.cwd() and node_modules
+
+
+	      if (!reporter) {
+	        try {
+	          reporter = commonjsRequire(reporterName);
+	        } catch (err) {
+	          if (err.code === 'MODULE_NOT_FOUND') {
+	            // Try to load reporters from a path (absolute or relative)
+	            try {
+	              reporter = commonjsRequire(path.resolve(utils.cwd(), reporterName));
+	            } catch (_err) {
+	              _err.code === 'MODULE_NOT_FOUND' ? warn("'".concat(reporterName, "' reporter not found")) : warn("'".concat(reporterName, "' reporter blew up with error:\n ").concat(err.stack));
+	            }
+	          } else {
+	            warn("'".concat(reporterName, "' reporter blew up with error:\n ").concat(err.stack));
+	          }
+	        }
+	      }
+
+	      if (!reporter) {
+	        throw createInvalidReporterError("invalid reporter '".concat(reporterName, "'"), reporterName);
+	      }
+
+	      this._reporter = reporter;
+	    }
+
+	    this.options.reporterOption = reporterOptions; // alias option name is used in public reporters xunit/tap/progress
+
+	    this.options.reporterOptions = reporterOptions;
+	    return this;
+	  };
+	  /**
+	   * Sets test UI `name`, defaults to "bdd".
+	   *
+	   * @public
+	   * @see [CLI option](../#-ui-name-u-name)
+	   * @see [Interface DSLs](../#interfaces)
+	   * @param {string|Function} [ui=bdd] - Interface name or class.
+	   * @returns {Mocha} this
+	   * @chainable
+	   * @throws {Error} if requested interface cannot be loaded
+	   */
+
+
+	  Mocha.prototype.ui = function (ui) {
+	    var bindInterface;
+
+	    if (typeof ui === 'function') {
+	      bindInterface = ui;
+	    } else {
+	      ui = ui || 'bdd';
+	      bindInterface = exports.interfaces[ui];
+
+	      if (!bindInterface) {
+	        try {
+	          bindInterface = commonjsRequire(ui);
+	        } catch (err) {
+	          throw createInvalidInterfaceError("invalid interface '".concat(ui, "'"), ui);
+	        }
+	      }
+	    }
+
+	    bindInterface(this.suite);
+	    this.suite.on(EVENT_FILE_PRE_REQUIRE, function (context) {
+	      currentContext = context;
+	    });
+	    return this;
+	  };
+	  /**
+	   * Loads `files` prior to execution. Does not support ES Modules.
+	   *
+	   * @description
+	   * The implementation relies on Node's `require` to execute
+	   * the test interface functions and will be subject to its cache.
+	   * Supports only CommonJS modules. To load ES modules, use Mocha#loadFilesAsync.
+	   *
+	   * @private
+	   * @see {@link Mocha#addFile}
+	   * @see {@link Mocha#run}
+	   * @see {@link Mocha#unloadFiles}
+	   * @see {@link Mocha#loadFilesAsync}
+	   * @param {Function} [fn] - Callback invoked upon completion.
+	   */
+
+
+	  Mocha.prototype.loadFiles = function (fn) {
+	    var self = this;
+	    var suite = this.suite;
+	    this.files.forEach(function (file) {
+	      file = path.resolve(file);
+	      suite.emit(EVENT_FILE_PRE_REQUIRE, commonjsGlobal, file, self);
+	      suite.emit(EVENT_FILE_REQUIRE, commonjsRequire(), file, self);
+	      suite.emit(EVENT_FILE_POST_REQUIRE, commonjsGlobal, file, self);
+	    });
+	    fn && fn();
+	  };
+	  /**
+	   * Loads `files` prior to execution. Supports Node ES Modules.
+	   *
+	   * @description
+	   * The implementation relies on Node's `require` and `import` to execute
+	   * the test interface functions and will be subject to its cache.
+	   * Supports both CJS and ESM modules.
+	   *
+	   * @public
+	   * @see {@link Mocha#addFile}
+	   * @see {@link Mocha#run}
+	   * @see {@link Mocha#unloadFiles}
+	   * @returns {Promise}
+	   * @example
+	   *
+	   * // loads ESM (and CJS) test files asynchronously, then runs root suite
+	   * mocha.loadFilesAsync()
+	   *   .then(() => mocha.run(failures => process.exitCode = failures ? 1 : 0))
+	   *   .catch(() => process.exitCode = 1);
+	   */
+
+
+	  Mocha.prototype.loadFilesAsync = function () {
+	    var self = this;
+	    var suite = this.suite;
+	    this.lazyLoadFiles(true);
+	    return require$$10.loadFilesAsync(this.files, function (file) {
+	      suite.emit(EVENT_FILE_PRE_REQUIRE, commonjsGlobal, file, self);
+	    }, function (file, resultModule) {
+	      suite.emit(EVENT_FILE_REQUIRE, resultModule, file, self);
+	      suite.emit(EVENT_FILE_POST_REQUIRE, commonjsGlobal, file, self);
+	    });
+	  };
+	  /**
+	   * Removes a previously loaded file from Node's `require` cache.
+	   *
+	   * @private
+	   * @static
+	   * @see {@link Mocha#unloadFiles}
+	   * @param {string} file - Pathname of file to be unloaded.
+	   */
+
+
+	  Mocha.unloadFile = function (file) {
+	    if (utils.isBrowser()) {
+	      throw createUnsupportedError('unloadFile() is only suported in a Node.js environment');
+	    }
+
+	    return require$$10.unloadFile(file);
+	  };
+	  /**
+	   * Unloads `files` from Node's `require` cache.
+	   *
+	   * @description
+	   * This allows required files to be "freshly" reloaded, providing the ability
+	   * to reuse a Mocha instance programmatically.
+	   * Note: does not clear ESM module files from the cache
+	   *
+	   * <strong>Intended for consumers &mdash; not used internally</strong>
+	   *
+	   * @public
+	   * @see {@link Mocha#run}
+	   * @returns {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.unloadFiles = function () {
+	    if (this._state === mochaStates.DISPOSED) {
+	      throw createMochaInstanceAlreadyDisposedError('Mocha instance is already disposed, it cannot be used again.', this._cleanReferencesAfterRun, this);
+	    }
+
+	    this.files.forEach(function (file) {
+	      Mocha.unloadFile(file);
+	    });
+	    this._state = mochaStates.INIT;
+	    return this;
+	  };
+	  /**
+	   * Sets `grep` filter after escaping RegExp special characters.
+	   *
+	   * @public
+	   * @see {@link Mocha#grep}
+	   * @param {string} str - Value to be converted to a regexp.
+	   * @returns {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Select tests whose full title begins with `"foo"` followed by a period
+	   * mocha.fgrep('foo.');
+	   */
+
+
+	  Mocha.prototype.fgrep = function (str) {
+	    if (!str) {
+	      return this;
+	    }
+
+	    return this.grep(new RegExp(escapeStringRegexp(str)));
+	  };
+	  /**
+	   * @summary
+	   * Sets `grep` filter used to select specific tests for execution.
+	   *
+	   * @description
+	   * If `re` is a regexp-like string, it will be converted to regexp.
+	   * The regexp is tested against the full title of each test (i.e., the
+	   * name of the test preceded by titles of each its ancestral suites).
+	   * As such, using an <em>exact-match</em> fixed pattern against the
+	   * test name itself will not yield any matches.
+	   * <br>
+	   * <strong>Previous filter value will be overwritten on each call!</strong>
+	   *
+	   * @public
+	   * @see [CLI option](../#-grep-regexp-g-regexp)
+	   * @see {@link Mocha#fgrep}
+	   * @see {@link Mocha#invert}
+	   * @param {RegExp|String} re - Regular expression used to select tests.
+	   * @return {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Select tests whose full title contains `"match"`, ignoring case
+	   * mocha.grep(/match/i);
+	   * @example
+	   *
+	   * // Same as above but with regexp-like string argument
+	   * mocha.grep('/match/i');
+	   * @example
+	   *
+	   * // ## Anti-example
+	   * // Given embedded test `it('only-this-test')`...
+	   * mocha.grep('/^only-this-test$/');    // NO! Use `.only()` to do this!
+	   */
+
+
+	  Mocha.prototype.grep = function (re) {
+	    if (utils.isString(re)) {
+	      // extract args if it's regex-like, i.e: [string, pattern, flag]
+	      var arg = re.match(/^\/(.*)\/([gimy]{0,4})$|.*/);
+	      this.options.grep = new RegExp(arg[1] || arg[0], arg[2]);
+	    } else {
+	      this.options.grep = re;
+	    }
+
+	    return this;
+	  };
+	  /**
+	   * Inverts `grep` matches.
+	   *
+	   * @public
+	   * @see {@link Mocha#grep}
+	   * @return {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Select tests whose full title does *not* contain `"match"`, ignoring case
+	   * mocha.grep(/match/i).invert();
+	   */
+
+
+	  Mocha.prototype.invert = function () {
+	    this.options.invert = true;
+	    return this;
+	  };
+	  /**
+	   * Enables or disables checking for global variables leaked while running tests.
+	   *
+	   * @public
+	   * @see [CLI option](../#-check-leaks)
+	   * @param {boolean} [checkLeaks=true] - Whether to check for global variable leaks.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.checkLeaks = function (checkLeaks) {
+	    this.options.checkLeaks = checkLeaks !== false;
+	    return this;
+	  };
+	  /**
+	   * Enables or disables whether or not to dispose after each test run.
+	   * Disable this to ensure you can run the test suite multiple times.
+	   * If disabled, be sure to dispose mocha when you're done to prevent memory leaks.
+	   * @public
+	   * @see {@link Mocha#dispose}
+	   * @param {boolean} cleanReferencesAfterRun
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.cleanReferencesAfterRun = function (cleanReferencesAfterRun) {
+	    this._cleanReferencesAfterRun = cleanReferencesAfterRun !== false;
+	    return this;
+	  };
+	  /**
+	   * Manually dispose this mocha instance. Mark this instance as `disposed` and unable to run more tests.
+	   * It also removes function references to tests functions and hooks, so variables trapped in closures can be cleaned by the garbage collector.
+	   * @public
+	   */
+
+
+	  Mocha.prototype.dispose = function () {
+	    if (this._state === mochaStates.RUNNING) {
+	      throw createMochaInstanceAlreadyRunningError('Cannot dispose while the mocha instance is still running tests.');
+	    }
+
+	    this.unloadFiles();
+	    this._previousRunner && this._previousRunner.dispose();
+	    this.suite.dispose();
+	    this._state = mochaStates.DISPOSED;
+	  };
+	  /**
+	   * Displays full stack trace upon test failure.
+	   *
+	   * @public
+	   * @see [CLI option](../#-full-trace)
+	   * @param {boolean} [fullTrace=true] - Whether to print full stacktrace upon failure.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.fullTrace = function (fullTrace) {
+	    this.options.fullTrace = fullTrace !== false;
+	    return this;
+	  };
+	  /**
+	   * Enables desktop notification support if prerequisite software installed.
+	   *
+	   * @public
+	   * @see [CLI option](../#-growl-g)
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.growl = function () {
+	    this.options.growl = this.isGrowlCapable();
+
+	    if (!this.options.growl) {
+	      var detail = utils.isBrowser() ? 'notification support not available in this browser...' : 'notification support prerequisites not installed...';
+	      console.error(detail + ' cannot enable!');
+	    }
+
+	    return this;
+	  };
+	  /**
+	   * @summary
+	   * Determines if Growl support seems likely.
+	   *
+	   * @description
+	   * <strong>Not available when run in browser.</strong>
+	   *
+	   * @private
+	   * @see {@link Growl#isCapable}
+	   * @see {@link Mocha#growl}
+	   * @return {boolean} whether Growl support can be expected
+	   */
+
+
+	  Mocha.prototype.isGrowlCapable = growl.isCapable;
+	  /**
+	   * Implements desktop notifications using a pseudo-reporter.
+	   *
+	   * @private
+	   * @see {@link Mocha#growl}
+	   * @see {@link Growl#notify}
+	   * @param {Runner} runner - Runner instance.
+	   */
+
+	  Mocha.prototype._growl = growl.notify;
+	  /**
+	   * Specifies whitelist of variable names to be expected in global scope.
+	   *
+	   * @public
+	   * @see [CLI option](../#-global-variable-name)
+	   * @see {@link Mocha#checkLeaks}
+	   * @param {String[]|String} global - Accepted global variable name(s).
+	   * @return {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Specify variables to be expected in global scope
+	   * mocha.global(['jQuery', 'MyLib']);
+	   */
+
+	  Mocha.prototype.global = function (global) {
+	    this.options.global = (this.options.global || []).concat(global).filter(Boolean).filter(function (elt, idx, arr) {
+	      return arr.indexOf(elt) === idx;
+	    });
+	    return this;
+	  }; // for backwards compability, 'globals' is an alias of 'global'
+
+
+	  Mocha.prototype.globals = Mocha.prototype.global;
+	  /**
+	   * Enables or disables TTY color output by screen-oriented reporters.
+	   *
+	   * @public
+	   * @see [CLI option](../#-color-c-colors)
+	   * @param {boolean} [color=true] - Whether to enable color output.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+	  Mocha.prototype.color = function (color) {
+	    this.options.color = color !== false;
+	    return this;
+	  };
+	  /**
+	   * Enables or disables reporter to use inline diffs (rather than +/-)
+	   * in test failure output.
+	   *
+	   * @public
+	   * @see [CLI option](../#-inline-diffs)
+	   * @param {boolean} [inlineDiffs=true] - Whether to use inline diffs.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.inlineDiffs = function (inlineDiffs) {
+	    this.options.inlineDiffs = inlineDiffs !== false;
+	    return this;
+	  };
+	  /**
+	   * Enables or disables reporter to include diff in test failure output.
+	   *
+	   * @public
+	   * @see [CLI option](../#-diff)
+	   * @param {boolean} [diff=true] - Whether to show diff on failure.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.diff = function (diff) {
+	    this.options.diff = diff !== false;
+	    return this;
+	  };
+	  /**
+	   * @summary
+	   * Sets timeout threshold value.
+	   *
+	   * @description
+	   * A string argument can use shorthand (such as "2s") and will be converted.
+	   * If the value is `0`, timeouts will be disabled.
+	   *
+	   * @public
+	   * @see [CLI option](../#-timeout-ms-t-ms)
+	   * @see [Timeouts](../#timeouts)
+	   * @param {number|string} msecs - Timeout threshold value.
+	   * @return {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Sets timeout to one second
+	   * mocha.timeout(1000);
+	   * @example
+	   *
+	   * // Same as above but using string argument
+	   * mocha.timeout('1s');
+	   */
+
+
+	  Mocha.prototype.timeout = function (msecs) {
+	    this.suite.timeout(msecs);
+	    return this;
+	  };
+	  /**
+	   * Sets the number of times to retry failed tests.
+	   *
+	   * @public
+	   * @see [CLI option](../#-retries-n)
+	   * @see [Retry Tests](../#retry-tests)
+	   * @param {number} retry - Number of times to retry failed tests.
+	   * @return {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Allow any failed test to retry one more time
+	   * mocha.retries(1);
+	   */
+
+
+	  Mocha.prototype.retries = function (retry) {
+	    this.suite.retries(retry);
+	    return this;
+	  };
+	  /**
+	   * Sets slowness threshold value.
+	   *
+	   * @public
+	   * @see [CLI option](../#-slow-ms-s-ms)
+	   * @param {number} msecs - Slowness threshold value.
+	   * @return {Mocha} this
+	   * @chainable
+	   * @example
+	   *
+	   * // Sets "slow" threshold to half a second
+	   * mocha.slow(500);
+	   * @example
+	   *
+	   * // Same as above but using string argument
+	   * mocha.slow('0.5s');
+	   */
+
+
+	  Mocha.prototype.slow = function (msecs) {
+	    this.suite.slow(msecs);
+	    return this;
+	  };
+	  /**
+	   * Forces all tests to either accept a `done` callback or return a promise.
+	   *
+	   * @public
+	   * @see [CLI option](../#-async-only-a)
+	   * @param {boolean} [asyncOnly=true] - Whether to force `done` callback or promise.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.asyncOnly = function (asyncOnly) {
+	    this.options.asyncOnly = asyncOnly !== false;
+	    return this;
+	  };
+	  /**
+	   * Disables syntax highlighting (in browser).
+	   *
+	   * @public
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.noHighlighting = function () {
+	    this.options.noHighlighting = true;
+	    return this;
+	  };
+	  /**
+	   * Enables or disables uncaught errors to propagate.
+	   *
+	   * @public
+	   * @see [CLI option](../#-allow-uncaught)
+	   * @param {boolean} [allowUncaught=true] - Whether to propagate uncaught errors.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.allowUncaught = function (allowUncaught) {
+	    this.options.allowUncaught = allowUncaught !== false;
+	    return this;
+	  };
+	  /**
+	   * @summary
+	   * Delays root suite execution.
+	   *
+	   * @description
+	   * Used to perform async operations before any suites are run.
+	   *
+	   * @public
+	   * @see [delayed root suite](../#delayed-root-suite)
+	   * @returns {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.delay = function delay() {
+	    this.options.delay = true;
+	    return this;
+	  };
+	  /**
+	   * Enables or disables running tests in dry-run mode.
+	   *
+	   * @public
+	   * @see [CLI option](../#-dry-run)
+	   * @param {boolean} [dryRun=true] - Whether to activate dry-run mode.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.dryRun = function (dryRun) {
+	    this.options.dryRun = dryRun !== false;
+	    return this;
+	  };
+	  /**
+	   * Fails test run if no tests encountered with exit-code 1.
+	   *
+	   * @public
+	   * @see [CLI option](../#-fail-zero)
+	   * @param {boolean} [failZero=true] - Whether to fail test run.
+	   * @return {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.failZero = function (failZero) {
+	    this.options.failZero = failZero !== false;
+	    return this;
+	  };
+	  /**
+	   * Causes tests marked `only` to fail the suite.
+	   *
+	   * @public
+	   * @see [CLI option](../#-forbid-only)
+	   * @param {boolean} [forbidOnly=true] - Whether tests marked `only` fail the suite.
+	   * @returns {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.forbidOnly = function (forbidOnly) {
+	    this.options.forbidOnly = forbidOnly !== false;
+	    return this;
+	  };
+	  /**
+	   * Causes pending tests and tests marked `skip` to fail the suite.
+	   *
+	   * @public
+	   * @see [CLI option](../#-forbid-pending)
+	   * @param {boolean} [forbidPending=true] - Whether pending tests fail the suite.
+	   * @returns {Mocha} this
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.forbidPending = function (forbidPending) {
+	    this.options.forbidPending = forbidPending !== false;
+	    return this;
+	  };
+	  /**
+	   * Throws an error if mocha is in the wrong state to be able to transition to a "running" state.
+	   * @private
+	   */
+
+
+	  Mocha.prototype._guardRunningStateTransition = function () {
+	    if (this._state === mochaStates.RUNNING) {
+	      throw createMochaInstanceAlreadyRunningError('Mocha instance is currently running tests, cannot start a next test run until this one is done', this);
+	    }
+
+	    if (this._state === mochaStates.DISPOSED || this._state === mochaStates.REFERENCES_CLEANED) {
+	      throw createMochaInstanceAlreadyDisposedError('Mocha instance is already disposed, cannot start a new test run. Please create a new mocha instance. Be sure to set disable `cleanReferencesAfterRun` when you want to reuse the same mocha instance for multiple test runs.', this._cleanReferencesAfterRun, this);
+	    }
+	  };
+	  /**
+	   * Mocha version as specified by "package.json".
+	   *
+	   * @name Mocha#version
+	   * @type string
+	   * @readonly
+	   */
+
+
+	  Object.defineProperty(Mocha.prototype, 'version', {
+	    value: require$$9.version,
+	    configurable: false,
+	    enumerable: true,
+	    writable: false
+	  });
+	  /**
+	   * Callback to be invoked when test execution is complete.
+	   *
+	   * @private
+	   * @callback DoneCB
+	   * @param {number} failures - Number of failures that occurred.
+	   */
+
+	  /**
+	   * Runs root suite and invokes `fn()` when complete.
+	   *
+	   * @description
+	   * To run tests multiple times (or to run tests in files that are
+	   * already in the `require` cache), make sure to clear them from
+	   * the cache first!
+	   *
+	   * @public
+	   * @see {@link Mocha#unloadFiles}
+	   * @see {@link Runner#run}
+	   * @param {DoneCB} [fn] - Callback invoked when test execution completed.
+	   * @returns {Runner} runner instance
+	   * @example
+	   *
+	   * // exit with non-zero status if there were test failures
+	   * mocha.run(failures => process.exitCode = failures ? 1 : 0);
+	   */
+
+	  Mocha.prototype.run = function (fn) {
+	    var _this = this;
+
+	    this._guardRunningStateTransition();
+
+	    this._state = mochaStates.RUNNING;
+
+	    if (this._previousRunner) {
+	      this._previousRunner.dispose();
+
+	      this.suite.reset();
+	    }
+
+	    if (this.files.length && !this._lazyLoadFiles) {
+	      this.loadFiles();
+	    }
+
+	    var suite = this.suite;
+	    var options = this.options;
+	    options.files = this.files;
+	    var runner = new this._runnerClass(suite, {
+	      cleanReferencesAfterRun: this._cleanReferencesAfterRun,
+	      delay: options.delay,
+	      dryRun: options.dryRun,
+	      failZero: options.failZero
+	    });
+	    statsCollector(runner);
+	    var reporter = new this._reporter(runner, options);
+	    runner.checkLeaks = options.checkLeaks === true;
+	    runner.fullStackTrace = options.fullTrace;
+	    runner.asyncOnly = options.asyncOnly;
+	    runner.allowUncaught = options.allowUncaught;
+	    runner.forbidOnly = options.forbidOnly;
+	    runner.forbidPending = options.forbidPending;
+
+	    if (options.grep) {
+	      runner.grep(options.grep, options.invert);
+	    }
+
+	    if (options.global) {
+	      runner.globals(options.global);
+	    }
+
+	    if (options.growl) {
+	      this._growl(runner);
+	    }
+
+	    if (options.color !== undefined) {
+	      exports.reporters.Base.useColors = options.color;
+	    }
+
+	    exports.reporters.Base.inlineDiffs = options.inlineDiffs;
+	    exports.reporters.Base.hideDiff = !options.diff;
+
+	    var done = function done(failures) {
+	      _this._previousRunner = runner;
+	      _this._state = _this._cleanReferencesAfterRun ? mochaStates.REFERENCES_CLEANED : mochaStates.INIT;
+	      fn = fn || utils.noop;
+
+	      if (typeof reporter.done === 'function') {
+	        reporter.done(failures, fn);
+	      } else {
+	        fn(failures);
+	      }
+	    };
+
+	    var runAsync = /*#__PURE__*/function () {
+	      var _ref = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee(runner) {
+	        var context, failureCount;
+	        return regeneratorRuntime.wrap(function _callee$(_context) {
+	          while (1) {
+	            switch (_context.prev = _context.next) {
+	              case 0:
+	                if (!(_this.options.enableGlobalSetup && _this.hasGlobalSetupFixtures())) {
+	                  _context.next = 6;
+	                  break;
+	                }
+
+	                _context.next = 3;
+	                return _this.runGlobalSetup(runner);
+
+	              case 3:
+	                _context.t0 = _context.sent;
+	                _context.next = 7;
+	                break;
+
+	              case 6:
+	                _context.t0 = {};
+
+	              case 7:
+	                context = _context.t0;
+	                _context.next = 10;
+	                return runner.runAsync({
+	                  files: _this.files,
+	                  options: options
+	                });
+
+	              case 10:
+	                failureCount = _context.sent;
+
+	                if (!(_this.options.enableGlobalTeardown && _this.hasGlobalTeardownFixtures())) {
+	                  _context.next = 14;
+	                  break;
+	                }
+
+	                _context.next = 14;
+	                return _this.runGlobalTeardown(runner, {
+	                  context: context
+	                });
+
+	              case 14:
+	                return _context.abrupt("return", failureCount);
+
+	              case 15:
+	              case "end":
+	                return _context.stop();
+	            }
+	          }
+	        }, _callee);
+	      }));
+
+	      return function runAsync(_x) {
+	        return _ref.apply(this, arguments);
+	      };
+	    }(); // no "catch" here is intentional. errors coming out of
+	    // Runner#run are considered uncaught/unhandled and caught
+	    // by the `process` event listeners.
+	    // also: returning anything other than `runner` would be a breaking
+	    // change
+
+
+	    runAsync(runner).then(done);
+	    return runner;
+	  };
+	  /**
+	   * Assigns hooks to the root suite
+	   * @param {MochaRootHookObject} [hooks] - Hooks to assign to root suite
+	   * @chainable
+	   */
+
+
+	  Mocha.prototype.rootHooks = function rootHooks() {
+	    var _this2 = this;
+
+	    var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+	        _ref2$beforeAll = _ref2.beforeAll,
+	        beforeAll = _ref2$beforeAll === void 0 ? [] : _ref2$beforeAll,
+	        _ref2$beforeEach = _ref2.beforeEach,
+	        beforeEach = _ref2$beforeEach === void 0 ? [] : _ref2$beforeEach,
+	        _ref2$afterAll = _ref2.afterAll,
+	        afterAll = _ref2$afterAll === void 0 ? [] : _ref2$afterAll,
+	        _ref2$afterEach = _ref2.afterEach,
+	        afterEach = _ref2$afterEach === void 0 ? [] : _ref2$afterEach;
+
+	    beforeAll = utils.castArray(beforeAll);
+	    beforeEach = utils.castArray(beforeEach);
+	    afterAll = utils.castArray(afterAll);
+	    afterEach = utils.castArray(afterEach);
+	    beforeAll.forEach(function (hook) {
+	      _this2.suite.beforeAll(hook);
+	    });
+	    beforeEach.forEach(function (hook) {
+	      _this2.suite.beforeEach(hook);
+	    });
+	    afterAll.forEach(function (hook) {
+	      _this2.suite.afterAll(hook);
+	    });
+	    afterEach.forEach(function (hook) {
+	      _this2.suite.afterEach(hook);
+	    });
+	    return this;
+	  };
+	  /**
+	   * Toggles parallel mode.
+	   *
+	   * Must be run before calling {@link Mocha#run}. Changes the `Runner` class to
+	   * use; also enables lazy file loading if not already done so.
+	   *
+	   * Warning: when passed `false` and lazy loading has been enabled _via any means_ (including calling `parallelMode(true)`), this method will _not_ disable lazy loading. Lazy loading is a prerequisite for parallel
+	   * mode, but parallel mode is _not_ a prerequisite for lazy loading!
+	   * @param {boolean} [enable] - If `true`, enable; otherwise disable.
+	   * @throws If run in browser
+	   * @throws If Mocha not in `INIT` state
+	   * @returns {Mocha}
+	   * @chainable
+	   * @public
+	   */
+
+
+	  Mocha.prototype.parallelMode = function parallelMode() {
+	    var enable = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
+
+	    if (utils.isBrowser()) {
+	      throw createUnsupportedError('parallel mode is only supported in Node.js');
+	    }
+
+	    var parallel = Boolean(enable);
+
+	    if (parallel === this.options.parallel && this._lazyLoadFiles && this._runnerClass !== exports.Runner) {
+	      return this;
+	    }
+
+	    if (this._state !== mochaStates.INIT) {
+	      throw createUnsupportedError('cannot change parallel mode after having called run()');
+	    }
+
+	    this.options.parallel = parallel; // swap Runner class
+
+	    this._runnerClass = parallel ? require$$10 : exports.Runner; // lazyLoadFiles may have been set `true` otherwise (for ESM loading),
+	    // so keep `true` if so.
+
+	    return this.lazyLoadFiles(this._lazyLoadFiles || parallel);
+	  };
+	  /**
+	   * Disables implicit call to {@link Mocha#loadFiles} in {@link Mocha#run}. This
+	   * setting is used by watch mode, parallel mode, and for loading ESM files.
+	   * @todo This should throw if we've already loaded files; such behavior
+	   * necessitates adding a new state.
+	   * @param {boolean} [enable] - If `true`, disable eager loading of files in
+	   * {@link Mocha#run}
+	   * @chainable
+	   * @public
+	   */
+
+
+	  Mocha.prototype.lazyLoadFiles = function lazyLoadFiles(enable) {
+	    this._lazyLoadFiles = enable === true;
+	    debug('set lazy load to %s', enable);
+	    return this;
+	  };
+	  /**
+	   * Configures one or more global setup fixtures.
+	   *
+	   * If given no parameters, _unsets_ any previously-set fixtures.
+	   * @chainable
+	   * @public
+	   * @param {MochaGlobalFixture|MochaGlobalFixture[]} [setupFns] - Global setup fixture(s)
+	   * @returns {Mocha}
+	   */
+
+
+	  Mocha.prototype.globalSetup = function globalSetup() {
+	    var setupFns = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+	    setupFns = utils.castArray(setupFns);
+	    this.options.globalSetup = setupFns;
+	    debug('configured %d global setup functions', setupFns.length);
+	    return this;
+	  };
+	  /**
+	   * Configures one or more global teardown fixtures.
+	   *
+	   * If given no parameters, _unsets_ any previously-set fixtures.
+	   * @chainable
+	   * @public
+	   * @param {MochaGlobalFixture|MochaGlobalFixture[]} [teardownFns] - Global teardown fixture(s)
+	   * @returns {Mocha}
+	   */
+
+
+	  Mocha.prototype.globalTeardown = function globalTeardown() {
+	    var teardownFns = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+	    teardownFns = utils.castArray(teardownFns);
+	    this.options.globalTeardown = teardownFns;
+	    debug('configured %d global teardown functions', teardownFns.length);
+	    return this;
+	  };
+	  /**
+	   * Run any global setup fixtures sequentially, if any.
+	   *
+	   * This is _automatically called_ by {@link Mocha#run} _unless_ the `runGlobalSetup` option is `false`; see {@link Mocha#enableGlobalSetup}.
+	   *
+	   * The context object this function resolves with should be consumed by {@link Mocha#runGlobalTeardown}.
+	   * @param {object} [context] - Context object if already have one
+	   * @public
+	   * @returns {Promise<object>} Context object
+	   */
+
+
+	  Mocha.prototype.runGlobalSetup = /*#__PURE__*/function () {
+	    var _runGlobalSetup = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee2() {
+	      var context,
+	          globalSetup,
+	          _args2 = arguments;
+	      return regeneratorRuntime.wrap(function _callee2$(_context2) {
+	        while (1) {
+	          switch (_context2.prev = _context2.next) {
+	            case 0:
+	              context = _args2.length > 0 && _args2[0] !== undefined ? _args2[0] : {};
+	              globalSetup = this.options.globalSetup;
+
+	              if (!(globalSetup && globalSetup.length)) {
+	                _context2.next = 7;
+	                break;
+	              }
+
+	              debug('run(): global setup starting');
+	              _context2.next = 6;
+	              return this._runGlobalFixtures(globalSetup, context);
+
+	            case 6:
+	              debug('run(): global setup complete');
+
+	            case 7:
+	              return _context2.abrupt("return", context);
+
+	            case 8:
+	            case "end":
+	              return _context2.stop();
+	          }
+	        }
+	      }, _callee2, this);
+	    }));
+
+	    function runGlobalSetup() {
+	      return _runGlobalSetup.apply(this, arguments);
+	    }
+
+	    return runGlobalSetup;
+	  }();
+	  /**
+	   * Run any global teardown fixtures sequentially, if any.
+	   *
+	   * This is _automatically called_ by {@link Mocha#run} _unless_ the `runGlobalTeardown` option is `false`; see {@link Mocha#enableGlobalTeardown}.
+	   *
+	   * Should be called with context object returned by {@link Mocha#runGlobalSetup}, if applicable.
+	   * @param {object} [context] - Context object if already have one
+	   * @public
+	   * @returns {Promise<object>} Context object
+	   */
+
+
+	  Mocha.prototype.runGlobalTeardown = /*#__PURE__*/function () {
+	    var _runGlobalTeardown = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee3() {
+	      var context,
+	          globalTeardown,
+	          _args3 = arguments;
+	      return regeneratorRuntime.wrap(function _callee3$(_context3) {
+	        while (1) {
+	          switch (_context3.prev = _context3.next) {
+	            case 0:
+	              context = _args3.length > 0 && _args3[0] !== undefined ? _args3[0] : {};
+	              globalTeardown = this.options.globalTeardown;
+
+	              if (!(globalTeardown && globalTeardown.length)) {
+	                _context3.next = 6;
+	                break;
+	              }
+
+	              debug('run(): global teardown starting');
+	              _context3.next = 6;
+	              return this._runGlobalFixtures(globalTeardown, context);
+
+	            case 6:
+	              debug('run(): global teardown complete');
+	              return _context3.abrupt("return", context);
+
+	            case 8:
+	            case "end":
+	              return _context3.stop();
+	          }
+	        }
+	      }, _callee3, this);
+	    }));
+
+	    function runGlobalTeardown() {
+	      return _runGlobalTeardown.apply(this, arguments);
+	    }
+
+	    return runGlobalTeardown;
+	  }();
+	  /**
+	   * Run global fixtures sequentially with context `context`
+	   * @private
+	   * @param {MochaGlobalFixture[]} [fixtureFns] - Fixtures to run
+	   * @param {object} [context] - context object
+	   * @returns {Promise<object>} context object
+	   */
+
+
+	  Mocha.prototype._runGlobalFixtures = /*#__PURE__*/function () {
+	    var _runGlobalFixtures2 = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee4() {
+	      var fixtureFns,
+	          context,
+	          _iteratorAbruptCompletion,
+	          _didIteratorError,
+	          _iteratorError,
+	          _iterator,
+	          _step,
+	          fixtureFn,
+	          _args4 = arguments;
+
+	      return regeneratorRuntime.wrap(function _callee4$(_context4) {
+	        while (1) {
+	          switch (_context4.prev = _context4.next) {
+	            case 0:
+	              fixtureFns = _args4.length > 0 && _args4[0] !== undefined ? _args4[0] : [];
+	              context = _args4.length > 1 && _args4[1] !== undefined ? _args4[1] : {};
+	              _iteratorAbruptCompletion = false;
+	              _didIteratorError = false;
+	              _context4.prev = 4;
+	              _iterator = _asyncIterator(fixtureFns);
+
+	            case 6:
+	              _context4.next = 8;
+	              return _iterator.next();
+
+	            case 8:
+	              if (!(_iteratorAbruptCompletion = !(_step = _context4.sent).done)) {
+	                _context4.next = 15;
+	                break;
+	              }
+
+	              fixtureFn = _step.value;
+	              _context4.next = 12;
+	              return fixtureFn.call(context);
+
+	            case 12:
+	              _iteratorAbruptCompletion = false;
+	              _context4.next = 6;
+	              break;
+
+	            case 15:
+	              _context4.next = 21;
+	              break;
+
+	            case 17:
+	              _context4.prev = 17;
+	              _context4.t0 = _context4["catch"](4);
+	              _didIteratorError = true;
+	              _iteratorError = _context4.t0;
+
+	            case 21:
+	              _context4.prev = 21;
+	              _context4.prev = 22;
+
+	              if (!(_iteratorAbruptCompletion && _iterator["return"] != null)) {
+	                _context4.next = 26;
+	                break;
+	              }
+
+	              _context4.next = 26;
+	              return _iterator["return"]();
+
+	            case 26:
+	              _context4.prev = 26;
+
+	              if (!_didIteratorError) {
+	                _context4.next = 29;
+	                break;
+	              }
+
+	              throw _iteratorError;
+
+	            case 29:
+	              return _context4.finish(26);
+
+	            case 30:
+	              return _context4.finish(21);
+
+	            case 31:
+	              return _context4.abrupt("return", context);
+
+	            case 32:
+	            case "end":
+	              return _context4.stop();
+	          }
+	        }
+	      }, _callee4, null, [[4, 17, 21, 31], [22,, 26, 30]]);
+	    }));
+
+	    function _runGlobalFixtures() {
+	      return _runGlobalFixtures2.apply(this, arguments);
+	    }
+
+	    return _runGlobalFixtures;
+	  }();
+	  /**
+	   * Toggle execution of any global setup fixture(s)
+	   *
+	   * @chainable
+	   * @public
+	   * @param {boolean } [enabled=true] - If `false`, do not run global setup fixture
+	   * @returns {Mocha}
+	   */
+
+
+	  Mocha.prototype.enableGlobalSetup = function enableGlobalSetup() {
+	    var enabled = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
+	    this.options.enableGlobalSetup = Boolean(enabled);
+	    return this;
+	  };
+	  /**
+	   * Toggle execution of any global teardown fixture(s)
+	   *
+	   * @chainable
+	   * @public
+	   * @param {boolean } [enabled=true] - If `false`, do not run global teardown fixture
+	   * @returns {Mocha}
+	   */
+
+
+	  Mocha.prototype.enableGlobalTeardown = function enableGlobalTeardown() {
+	    var enabled = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
+	    this.options.enableGlobalTeardown = Boolean(enabled);
+	    return this;
+	  };
+	  /**
+	   * Returns `true` if one or more global setup fixtures have been supplied.
+	   * @public
+	   * @returns {boolean}
+	   */
+
+
+	  Mocha.prototype.hasGlobalSetupFixtures = function hasGlobalSetupFixtures() {
+	    return Boolean(this.options.globalSetup.length);
+	  };
+	  /**
+	   * Returns `true` if one or more global teardown fixtures have been supplied.
+	   * @public
+	   * @returns {boolean}
+	   */
+
+
+	  Mocha.prototype.hasGlobalTeardownFixtures = function hasGlobalTeardownFixtures() {
+	    return Boolean(this.options.globalTeardown.length);
+	  };
+	  /**
+	   * An alternative way to define root hooks that works with parallel runs.
+	   * @typedef {Object} MochaRootHookObject
+	   * @property {Function|Function[]} [beforeAll] - "Before all" hook(s)
+	   * @property {Function|Function[]} [beforeEach] - "Before each" hook(s)
+	   * @property {Function|Function[]} [afterAll] - "After all" hook(s)
+	   * @property {Function|Function[]} [afterEach] - "After each" hook(s)
+	   */
+
+	  /**
+	   * An function that returns a {@link MochaRootHookObject}, either sync or async.
+	     @callback MochaRootHookFunction
+	   * @returns {MochaRootHookObject|Promise<MochaRootHookObject>}
+	   */
+
+	  /**
+	   * A function that's invoked _once_ which is either sync or async.
+	   * Can be a "teardown" or "setup".  These will all share the same context.
+	   * @callback MochaGlobalFixture
+	   * @returns {void|Promise<void>}
+	   */
+
+	  /**
+	   * An object making up all necessary parts of a plugin loader and aggregator
+	   * @typedef {Object} PluginDefinition
+	   * @property {string} exportName - Named export to use
+	   * @property {string} [optionName] - Option name for Mocha constructor (use `exportName` if omitted)
+	   * @property {PluginValidator} [validate] - Validator function
+	   * @property {PluginFinalizer} [finalize] - Finalizer/aggregator function
+	   */
+
+	  /**
+	   * A (sync) function to assert a user-supplied plugin implementation is valid.
+	   *
+	   * Defined in a {@link PluginDefinition}.
+	  
+	   * @callback PluginValidator
+	   * @param {*} value - Value to check
+	   * @this {PluginDefinition}
+	   * @returns {void}
+	   */
+
+	  /**
+	   * A function to finalize plugins impls of a particular ilk
+	   * @callback PluginFinalizer
+	   * @param {Array<*>} impls - User-supplied implementations
+	   * @returns {Promise<*>|*}
+	   */
+
+	});
+
+	/* eslint no-unused-vars: off */
+
+	/* eslint-env commonjs */
+
+	/**
+	 * Shim process.stdout.
+	 */
+
+
+	process$4.stdout = browserStdout({
+	  label: false
+	});
+	/**
+	 * Create a Mocha instance.
+	 *
+	 * @return {undefined}
+	 */
+
+	var mocha = new mocha$1({
+	  reporter: 'html'
+	});
+	/**
+	 * Save timer references to avoid Sinon interfering (see GH-237).
+	 */
+
+	var Date$1 = commonjsGlobal.Date;
+	var setTimeout$1 = commonjsGlobal.setTimeout;
+	commonjsGlobal.setInterval;
+	commonjsGlobal.clearTimeout;
+	commonjsGlobal.clearInterval;
+	var uncaughtExceptionHandlers = [];
+	var originalOnerrorHandler = commonjsGlobal.onerror;
+	/**
+	 * Remove uncaughtException listener.
+	 * Revert to original onerror handler if previously defined.
+	 */
+
+	process$4.removeListener = function (e, fn) {
+	  if (e === 'uncaughtException') {
+	    if (originalOnerrorHandler) {
+	      commonjsGlobal.onerror = originalOnerrorHandler;
+	    } else {
+	      commonjsGlobal.onerror = function () {};
+	    }
+
+	    var i = uncaughtExceptionHandlers.indexOf(fn);
+
+	    if (i !== -1) {
+	      uncaughtExceptionHandlers.splice(i, 1);
+	    }
+	  }
+	};
+	/**
+	 * Implements listenerCount for 'uncaughtException'.
+	 */
+
+
+	process$4.listenerCount = function (name) {
+	  if (name === 'uncaughtException') {
+	    return uncaughtExceptionHandlers.length;
+	  }
+
+	  return 0;
+	};
+	/**
+	 * Implements uncaughtException listener.
+	 */
+
+
+	process$4.on = function (e, fn) {
+	  if (e === 'uncaughtException') {
+	    commonjsGlobal.onerror = function (err, url, line) {
+	      fn(new Error(err + ' (' + url + ':' + line + ')'));
+	      return !mocha.options.allowUncaught;
+	    };
+
+	    uncaughtExceptionHandlers.push(fn);
+	  }
+	};
+
+	process$4.listeners = function (e) {
+	  if (e === 'uncaughtException') {
+	    return uncaughtExceptionHandlers;
+	  }
+
+	  return [];
+	}; // The BDD UI is registered by default, but no UI will be functional in the
+	// browser without an explicit call to the overridden `mocha.ui` (see below).
+	// Ensure that this default UI does not expose its methods to the global scope.
+
+
+	mocha.suite.removeAllListeners('pre-require');
+	var immediateQueue = [];
+	var immediateTimeout;
+
+	function timeslice() {
+	  var immediateStart = new Date$1().getTime();
+
+	  while (immediateQueue.length && new Date$1().getTime() - immediateStart < 100) {
+	    immediateQueue.shift()();
+	  }
+
+	  if (immediateQueue.length) {
+	    immediateTimeout = setTimeout$1(timeslice, 0);
+	  } else {
+	    immediateTimeout = null;
+	  }
+	}
+	/**
+	 * High-performance override of Runner.immediately.
+	 */
+
+
+	mocha$1.Runner.immediately = function (callback) {
+	  immediateQueue.push(callback);
+
+	  if (!immediateTimeout) {
+	    immediateTimeout = setTimeout$1(timeslice, 0);
+	  }
+	};
+	/**
+	 * Function to allow assertion libraries to throw errors directly into mocha.
+	 * This is useful when running tests in a browser because window.onerror will
+	 * only receive the 'message' attribute of the Error.
+	 */
+
+
+	mocha.throwError = function (err) {
+	  uncaughtExceptionHandlers.forEach(function (fn) {
+	    fn(err);
+	  });
+	  throw err;
+	};
+	/**
+	 * Override ui to ensure that the ui functions are initialized.
+	 * Normally this would happen in Mocha.prototype.loadFiles.
+	 */
+
+
+	mocha.ui = function (ui) {
+	  mocha$1.prototype.ui.call(this, ui);
+	  this.suite.emit('pre-require', commonjsGlobal, null, this);
+	  return this;
+	};
+	/**
+	 * Setup mocha with the given setting options.
+	 */
+
+
+	mocha.setup = function (opts) {
+	  if (typeof opts === 'string') {
+	    opts = {
+	      ui: opts
+	    };
+	  }
+
+	  if (opts.delay === true) {
+	    this.delay();
+	  }
+
+	  var self = this;
+	  Object.keys(opts).filter(function (opt) {
+	    return opt !== 'delay';
+	  }).forEach(function (opt) {
+	    if (Object.prototype.hasOwnProperty.call(opts, opt)) {
+	      self[opt](opts[opt]);
+	    }
+	  });
+	  return this;
+	};
+	/**
+	 * Run mocha, returning the Runner.
+	 */
+
+
+	mocha.run = function (fn) {
+	  var options = mocha.options;
+	  mocha.globals('location');
+	  var query = parseQuery(commonjsGlobal.location.search || '');
+
+	  if (query.grep) {
+	    mocha.grep(query.grep);
+	  }
+
+	  if (query.fgrep) {
+	    mocha.fgrep(query.fgrep);
+	  }
+
+	  if (query.invert) {
+	    mocha.invert();
+	  }
+
+	  return mocha$1.prototype.run.call(mocha, function (err) {
+	    // The DOM Document is not available in Web Workers.
+	    var document = commonjsGlobal.document;
+
+	    if (document && document.getElementById('mocha') && options.noHighlighting !== true) {
+	      highlightTags('code');
+	    }
+
+	    if (fn) {
+	      fn(err);
+	    }
+	  });
+	};
+	/**
+	 * Expose the process shim.
+	 * https://github.com/mochajs/mocha/pull/916
+	 */
+
+
+	mocha$1.process = process$4;
+	/**
+	 * Expose mocha.
+	 */
+
+	commonjsGlobal.Mocha = mocha$1;
+	commonjsGlobal.mocha = mocha;
+	var browserEntry = mocha;
+
+	return browserEntry;
+
+}));
+//# sourceMappingURL=mocha.js.map

From bd43cbf81f8abd2fcbc3a62671957a004a6fbff1 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Sep 2021 01:09:45 +0900
Subject: [PATCH 83/85] Remove unnecessary docker port config.

---
 docker-compose.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/docker-compose.yml b/docker-compose.yml
index 74f66fe..6bba835 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,6 @@ services:
     image: nginx:alpine
     ports:
       - 127.0.0.1:80:80
-      - ${SERVER_HOST:-127.0.0.1}:${SERVER_PORT-}:80
     volumes:
       - .:/usr/share/nginx/html:ro
   mocha:

From 5b0fb1d0be3dfe300ee67a0c115d15a8d289c860 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Sep 2021 01:10:21 +0900
Subject: [PATCH 84/85] 3.29.0

---
 js/canvas-to-blob.min.js     | 2 +-
 js/canvas-to-blob.min.js.map | 2 +-
 package-lock.json            | 4 ++--
 package.json                 | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/js/canvas-to-blob.min.js b/js/canvas-to-blob.min.js
index e0faa13..fe9898f 100644
--- a/js/canvas-to-blob.min.js
+++ b/js/canvas-to-blob.min.js
@@ -1,2 +1,2 @@
-!function(t){"use strict";var a=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,b=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),f=b&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),B=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,s=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,r=(b||B)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,a,r,i,l,u,c=t.match(s);if(!c)throw new Error("invalid data URI");for(e=c[2]?c[1]:"text/plain"+(c[3]||";charset=US-ASCII"),o=!!c[4],n=t.slice(c[0].length),a=(o?atob:decodeURIComponent)(n),r=new ArrayBuffer(a.length),i=new Uint8Array(r),l=0;l<a.length;l+=1)i[l]=a.charCodeAt(l);return b?new Blob([f?i:r],{type:e}):((u=new B).append(r),u.getBlob(e))};t.HTMLCanvasElement&&!a.toBlob&&(a.mozGetAsFile?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:a.toDataURL&&r&&(a.msToBlob?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){(e&&"image/png"!==e||o)&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.msToBlob(e))})}:a.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(r(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return r}):"object"==typeof module&&module.exports?module.exports=r:t.dataURLtoBlob=r}(window);
+!function(t){"use strict";var a=t.HTMLCanvasElement&&t.HTMLCanvasElement.prototype,l=t.Blob&&function(){try{return Boolean(new Blob)}catch(t){return!1}}(),u=l&&t.Uint8Array&&function(){try{return 100===new Blob([new Uint8Array(100)]).size}catch(t){return!1}}(),c=t.BlobBuilder||t.WebKitBlobBuilder||t.MozBlobBuilder||t.MSBlobBuilder,b=/^data:((.*?)(;charset=.*?)?)(;base64)?,/,r=(l||c)&&t.atob&&t.ArrayBuffer&&t.Uint8Array&&function(t){var e,o,n,a,r,i=t.match(b);if(!i)throw new Error("invalid data URI");for(e=i[2]?i[1]:"text/plain"+(i[3]||";charset=US-ASCII"),n=!!i[4],i=t.slice(i[0].length),o=(n?atob:decodeURIComponent)(i),n=new ArrayBuffer(o.length),a=new Uint8Array(n),r=0;r<o.length;r+=1)a[r]=o.charCodeAt(r);return l?new Blob([u?a:n],{type:e}):((i=new c).append(n),i.getBlob(e))};t.HTMLCanvasElement&&!a.toBlob&&(a.mozGetAsFile?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){o&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.mozGetAsFile("blob",e))})}:a.toDataURL&&r&&(a.msToBlob?a.toBlob=function(t,e,o){var n=this;setTimeout(function(){(e&&"image/png"!==e||o)&&a.toDataURL&&r?t(r(n.toDataURL(e,o))):t(n.msToBlob(e))})}:a.toBlob=function(t,e,o){var n=this;setTimeout(function(){t(r(n.toDataURL(e,o)))})})),"function"==typeof define&&define.amd?define(function(){return r}):"object"==typeof module&&module.exports?module.exports=r:t.dataURLtoBlob=r}(window);
 //# sourceMappingURL=canvas-to-blob.min.js.map
\ No newline at end of file
diff --git a/js/canvas-to-blob.min.js.map b/js/canvas-to-blob.min.js.map
index 190b331..958e199 100644
--- a/js/canvas-to-blob.min.js.map
+++ b/js/canvas-to-blob.min.js.map
@@ -1 +1 @@
-{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","mediaType","isBase64","dataString","byteString","arrayBuffer","intArray","i","bb","matches","match","Error","slice","length","decodeURIComponent","charCodeAt","type","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","msToBlob","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,gBAGV,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IACEC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EACAC,EAEFC,EAAUT,EAAQU,MAAMd,GACxB,IAAKa,EACH,MAAM,IAAIE,MAAM,oBAkBlB,IAfAV,EAAYQ,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCP,IAAaO,EAAQ,GACrBN,EAAaH,EAAQY,MAAMH,EAAQ,GAAGI,QAGpCT,GAFEF,EAEWJ,KAGAgB,oBAHKX,GAMpBE,EAAc,IAAIN,YAAYK,EAAWS,QACzCP,EAAW,IAAIhB,WAAWe,GACrBE,EAAI,EAAGA,EAAIH,EAAWS,OAAQN,GAAK,EACtCD,EAASC,GAAKH,EAAWW,WAAWR,GAGtC,OAAItB,EACK,IAAIC,KAAK,CAACG,EAA4BiB,EAAWD,GAAc,CACpEW,KAAMf,MAGVO,EAAK,IAAIhB,GACNyB,OAAOZ,GACHG,EAAGU,QAAQjB,KAElBpB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKH,aAAa,OAAQJ,OAIhClC,EAAgB4C,WAAa7B,IAClCf,EAAgB6C,SAClB7C,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,YAELT,GAAiB,cAATA,GAAyBM,IACnCxC,EAAgB4C,WAChB7B,EAEAwB,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,KAE5CD,EAASE,EAAKI,SAASX,OAK7BlC,EAAgBqC,OAAS,SAAUE,EAAUL,EAAMM,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUV,EAAMM,UAMhC,mBAAXM,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO/B,IAEkB,iBAAXiC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUlC,EAEjBhB,EAAOgB,cAAgBA,EA5H1B,CA8HEhB"}
\ No newline at end of file
+{"version":3,"sources":["canvas-to-blob.js"],"names":["window","CanvasPrototype","HTMLCanvasElement","prototype","hasBlobConstructor","Blob","Boolean","e","hasArrayBufferViewSupport","Uint8Array","size","BlobBuilder","WebKitBlobBuilder","MozBlobBuilder","MSBlobBuilder","dataURIPattern","dataURLtoBlob","atob","ArrayBuffer","dataURI","mediaType","byteString","arrayBuffer","intArray","i","matches","match","Error","isBase64","dataString","slice","length","decodeURIComponent","charCodeAt","type","bb","append","getBlob","toBlob","mozGetAsFile","callback","quality","self","this","setTimeout","toDataURL","msToBlob","define","amd","module","exports"],"mappings":"CAgBC,SAAWA,gBAGV,IAAIC,EACFD,EAAOE,mBAAqBF,EAAOE,kBAAkBC,UACnDC,EACFJ,EAAOK,MACP,WACE,IACE,OAAOC,QAAQ,IAAID,MACnB,MAAOE,GACP,OAAO,GAJX,GAOEC,EACFJ,GACAJ,EAAOS,YACP,WACE,IACE,OAAgD,MAAzC,IAAIJ,KAAK,CAAC,IAAII,WAAW,OAAOC,KACvC,MAAOH,GACP,OAAO,GAJX,GAOEI,EACFX,EAAOW,aACPX,EAAOY,mBACPZ,EAAOa,gBACPb,EAAOc,cACLC,EAAiB,0CACjBC,GACDZ,GAAsBO,IACvBX,EAAOiB,MACPjB,EAAOkB,aACPlB,EAAOS,YACP,SAAUU,GACR,IACEC,EAGAC,EACAC,EACAC,EACAC,EAGFC,EAAUN,EAAQO,MAAMX,GACxB,IAAKU,EACH,MAAM,IAAIE,MAAM,oBAkBlB,IAfAP,EAAYK,EAAQ,GAChBA,EAAQ,GACR,cAAgBA,EAAQ,IAAM,qBAClCG,IAAaH,EAAQ,GACrBI,EAAaV,EAAQW,MAAML,EAAQ,GAAGM,QAGpCV,GAFEO,EAEWX,KAGAe,oBAHKH,GAMpBP,EAAc,IAAIJ,YAAYG,EAAWU,QACzCR,EAAW,IAAId,WAAWa,GACrBE,EAAI,EAAGA,EAAIH,EAAWU,OAAQP,GAAK,EACtCD,EAASC,GAAKH,EAAWY,WAAWT,GAGtC,OAAIpB,EACK,IAAIC,KAAK,CAACG,EAA4Be,EAAWD,GAAc,CACpEY,KAAMd,MAGVe,EAAK,IAAIxB,GACNyB,OAAOd,GACHa,EAAGE,QAAQjB,KAElBpB,EAAOE,oBAAsBD,EAAgBqC,SAC3CrC,EAAgBsC,aAClBtC,EAAgBqC,OAAS,SAAUE,EAAUN,EAAMO,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACLH,GAAWxC,EAAgB4C,WAAa7B,EAC1CwB,EAASxB,EAAc0B,EAAKG,UAAUX,EAAMO,KAE5CD,EAASE,EAAKH,aAAa,OAAQL,OAIhCjC,EAAgB4C,WAAa7B,IAClCf,EAAgB6C,SAClB7C,EAAgBqC,OAAS,SAAUE,EAAUN,EAAMO,GACjD,IAAIC,EAAOC,KACXC,WAAW,YAELV,GAAiB,cAATA,GAAyBO,IACnCxC,EAAgB4C,WAChB7B,EAEAwB,EAASxB,EAAc0B,EAAKG,UAAUX,EAAMO,KAE5CD,EAASE,EAAKI,SAASZ,OAK7BjC,EAAgBqC,OAAS,SAAUE,EAAUN,EAAMO,GACjD,IAAIC,EAAOC,KACXC,WAAW,WACTJ,EAASxB,EAAc0B,EAAKG,UAAUX,EAAMO,UAMhC,mBAAXM,QAAyBA,OAAOC,IACzCD,OAAO,WACL,OAAO/B,IAEkB,iBAAXiC,QAAuBA,OAAOC,QAC9CD,OAAOC,QAAUlC,EAEjBhB,EAAOgB,cAAgBA,EA5H1B,CA8HEhB"}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 88ed1dc..57bfa27 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.28.0",
+  "version": "3.29.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "blueimp-canvas-to-blob",
-      "version": "3.28.0",
+      "version": "3.29.0",
       "license": "MIT",
       "devDependencies": {
         "blueimp-load-image": "5",
diff --git a/package.json b/package.json
index 8412280..266030d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-canvas-to-blob",
-  "version": "3.28.0",
+  "version": "3.29.0",
   "title": "JavaScript Canvas to Blob",
   "description": "Canvas to Blob is a polyfill for the standard JavaScript canvas.toBlob method. It can be used to create Blob objects from an HTML canvas element.",
   "keywords": [

From 643a51dbfae1a93f0f5064352302799800ff87f5 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Sun, 26 Sep 2021 01:15:26 +0900
Subject: [PATCH 85/85] Fix test workflow.

---
 .github/workflows/test.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index abec076..4ad8a05 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,7 +14,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
-      - run: npm run pretest
+      - run: npm run lint
 
   unit:
     runs-on: ubuntu-latest