Removed PEAR license information, since we don't use pear libs anymore.
Fixed height of checkbox, select and button. adjusted bottom-bar as well.
Improved ka.Dialog (animated fadein, fixed, etc). Added usage of ka.Dialog in ka.Window.
Fixed ka.ContentTypes.Plugin and ka.FieldTypes.Plugin
Added `order` in ka.Slot::loadContents
Fixed ka.Button event delegation bug
Small CS fixes and little ui improvements
Fixed the drag'n'drop in ka.Editor.
Small invalidation ui fix.
Fixed fieldProperty dialog opener
Added ContentVersion model class