Add test script and rename build to start

Author: razor-x

.travis.yml

@@ -7,5 +7,3 @@ cache:
     - bower_components
     - node_modules
 sudo: false
-
-script: npm run build

README.md

@@ -125,6 +125,14 @@ $ npm install
 
 [Node.js]: https://nodejs.org/
 
+### Build
+
+Execute the default build task with
+
+```
+$ npm start
+```
+
 ### Grunt
 
 Optionally, you may run additional development tasks with [Grunt].

package.json

@@ -16,7 +16,8 @@
   ],
   "scripts": {
     "install": "bower install",
-    "build": "grunt"
+    "start": "grunt",
+    "test": "grunt"
   },
   "files": [
     "javascripts"