Merge pull request #481 from herby/node-both-08-and-010

Travis tests both on node 0.8 and 0.10.

.travis.yml

@@ -1,5 +1,6 @@
 language: node_js
 node_js:
   - 0.8
+  - 0.10
 before_script:
   - npm install -g grunt-cli