Try to build with Travis

.travis.yml

@@ -1,5 +1,8 @@
 language: node_js
 node_js:
     - "0.10"
-before_install: npm install -g grunt-cli
-install: npm install
+before_install:
+    - "npm install -g grunt-cli"
+    - "npm install -g phantomjs"
+install: npm install
+before_script: grunt build