Merge pull request #503 from kkirsche/patch-1

Remove moot `version` property from bower.json

bower.json

 {
   "name": "AdminLTE",
-  "version": "2.1.2",
   "homepage": "http://almsaeedstudio.com",
   "authors": [
     "Abdullah Almsaeed <almasaeed2010@gmail.com>"