Update version

package.json

@@ -1,7 +1,7 @@
 {
   "name": "admin-lte",
-  "version": "2.3.11",
-  "main": "dist/js/app.min.js",
+  "version": "2.4.0",
+  "main": "dist/js/adminlte.min.js",
   "repository": {
     "type": "git",
     "url": "git://github.com/almasaeed2010/AdminLTE.git"
@@ -12,6 +12,7 @@
     "grunt": "~0.4.5",
     "grunt-bootlint": "^0.9.1",
     "grunt-contrib-clean": "^0.6.0",
+    "grunt-contrib-concat": "^1.0.1",
     "grunt-contrib-csslint": "^0.5.0",
     "grunt-contrib-cssmin": "^0.12.2",
     "grunt-contrib-jshint": "^0.11.2",
@@ -20,6 +21,7 @@
     "grunt-contrib-watch": "~0.6.1",
     "grunt-cssjanus": "^0.2.4",
     "grunt-image": "^1.0.5",
-    "grunt-includes": "^0.4.5"
+    "grunt-includes": "^0.4.5",
+    "grunt-jscs": "^3.0.1"
   }
 }