Fix coverage reporting.

Author: Jason Walton

.travis.yml

@@ -4,5 +4,7 @@ node_js:
   - '0.12'
   - '4'
   - '5'
+script:
+  - npm run coverage
 after_success:
   - 'cat ./coverage/lcov.info | ./node_modules/.bin/coveralls'

package.json

@@ -7,7 +7,8 @@
     "quicktest": "mocha",
     "test": "mocha --compilers js:babel-core/register",
     "coverage": "babel-node node_modules/isparta/bin/isparta cover node_modules/mocha/bin/_mocha",
-    "prepublish": "babel -d lib src"
+    "prepublish": "babel -d lib src",
+    "clean": "rm -rf lib coverage"
   },
   "keywords": [
     "async",