add badge for gem

Author: David Morse

README.md

@@ -1,5 +1,6 @@
 [![Built with Grunt](https://cdn.gruntjs.com/builtwith.png)](http://gruntjs.com/)
 [![Build Status](https://travis-ci.org/dsmorse/gridster.js.svg)](http://travis-ci.org/dsmorse/gridster.js)
+[![Gem Version](https://badge.fury.io/rb/gridster.js-rails.svg)](http://badge.fury.io/rb/gridster.js-rails)
 
 Gridster.js
 ===========

bower.json

@@ -13,7 +13,7 @@
     "dist/jquery.gridster.js",
     "dist/jquery.gridster.css"
   ],
-  "private": true,
+  "private": false,
   "ignore": [
     ".bowerrc",
     ".gitignore",