Remove grunt

Author: davej

package.json

@@ -9,7 +9,6 @@
   "devDependencies": {
     "coffee-script": "^1.7.1",
     "event-stream": "^3.1.5",
-    "grunt": "^0.4.5",
     "gulp": "^3.8.6",
     "gulp-coffee": "^2.1.1",
     "gulp-concat": "^2.3.3",