Require jquery-ui-sortable and -draggable in the general config panel.

This commit has a hack to make window.jQuery available during the
duration of the requiring of jquery-ui. Once we're done requiring
jQuery, the global is removed from window once again.

Issue #494 has an alternative idea of enhancing require to allow the
requiring script to specify the value of global variables in the script
being required.

package.json

@@ -18,7 +18,8 @@
     "pathwatcher": "0.3.0",
     "plist": "git://github.com/nathansobo/node-plist.git",
     "space-pen": "git://github.com/nathansobo/space-pen.git",
-    "less": "git://github.com/nathansobo/less.js.git"
+    "less": "git://github.com/nathansobo/less.js.git",
+    "jqueryui-browser": "1.10.2"
   },
 
   "devDependencies" : {

src/app/general-config-panel.coffee

@@ -3,6 +3,14 @@ ConfigPanel = require 'config-panel'
 $ = require 'jquery'
 _ = require 'underscore'
 
+window.jQuery = $
+require 'jqueryui-browser/ui/jquery.ui.core'
+require 'jqueryui-browser/ui/jquery.ui.widget'
+require 'jqueryui-browser/ui/jquery.ui.mouse'
+require 'jqueryui-browser/ui/jquery.ui.sortable'
+require 'jqueryui-browser/ui/jquery.ui.draggable'
+delete window.jQuery
+
 module.exports =
 class GeneralConfigPanel extends ConfigPanel
   @content: ->