feat(jscs): update to ^2.1.0, rename config file to .jscsrc, use esnext option

Author: Awk34

app/templates/.jscs.json renamed to app/templates/.jscsrc

@@ -1,4 +1,5 @@
 {
+  "esnext": true,
   "maximumLineLength": {
     "value": 100,
     "allowComments": true,

app/templates/Gruntfile.js

@@ -165,7 +165,7 @@ module.exports = function (grunt) {
 
     jscs: {
       options: {
-        config: ".jscs.json"
+        config: ".jscsrc"
       },
       main: {
         files: {

app/templates/_package.json

@@ -55,7 +55,7 @@
     "karma-babel-preprocessor": "^5.2.1",<% } %>
     "grunt-babel": "~5.0.0",
     "grunt-google-cdn": "~0.4.0",
-    "grunt-jscs": "^2.0.0",
+    "grunt-jscs": "^2.1.0",
     "grunt-newer": "^1.1.1",
     "grunt-ng-annotate": "^1.0.1",
     "grunt-ng-constant": "^1.1.0",

test/test-file-creation.js

@@ -212,7 +212,7 @@ describe('angular-fullstack generator', function () {
       '.gitattributes',
       '.gitignore',
       '.travis.yml',
-      '.jscs.json',
+      '.jscsrc',
       '.yo-rc.json',
       'Gruntfile.js',
       'package.json',