update node version

.travis.yml

@@ -6,7 +6,7 @@ branches:
 language: node_js
 
 node_js:
-  - "0.8.11"
+  - "0.10"
 
 before_install:
   - npm install -g grunt-cli recess bower

package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/thomaspark/bootswatch.git"
   },
   "engines": {
-    "node": ">= 0.8.11"
+    "node": ">= 0.10.0"
   },
   "devDependencies": {
     "bower": "~1.2.8",