Add support for code coverage.

Author: jonkemp

.gitignore

@@ -1 +1,2 @@
-node_modules
+node_modules
+.nyc_output

.travis.yml

@@ -8,6 +8,7 @@ node_js:
 before_script:
   - npm install -g gulp
   - gulp lint
+after_success: npm run coveralls
 
 # whitelist
 branches:

README.md

@@ -1,4 +1,4 @@
-# [gulp](https://github.com/wearefractal/gulp)-inline-css [![Build Status](https://travis-ci.org/jonkemp/gulp-inline-css.svg?branch=master)](https://travis-ci.org/jonkemp/gulp-inline-css)
+# [gulp](https://github.com/wearefractal/gulp)-inline-css [![Build Status](https://travis-ci.org/jonkemp/gulp-inline-css.svg?branch=master)](https://travis-ci.org/jonkemp/gulp-inline-css) [![Coverage Status](https://coveralls.io/repos/jonkemp/gulp-inline-css/badge.svg?branch=master&service=github)](https://coveralls.io/github/jonkemp/gulp-inline-css?branch=master)
 
 [![NPM](https://nodei.co/npm/gulp-inline-css.png?downloads=true)](https://nodei.co/npm/gulp-inline-css/)
 

package.json

@@ -12,19 +12,23 @@
     "through2": "^0.6.1"
   },
   "devDependencies": {
+    "coveralls": "^2.11.6",
     "gulp": "^3.9.0",
     "gulp-eslint": "^1.1.1",
     "gulp-mocha": "^2.0.0",
     "gulp-util": "^3.0.0",
     "mocha": "*",
+    "nyc": "^5.0.0",
     "should": "^4.6.0"
   },
   "engines": {
     "node": ">=0.10.0"
   },
   "scripts": {
     "test": "mocha",
-    "lint": "gulp lint"
+    "lint": "gulp lint",
+    "coverage": "nyc npm test && nyc report",
+    "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls"
   },
   "files": [
     "index.js"