3.0.0-beta5

Thanks to everyone for reporting, here is a list of fixed issues and changes:

• fix missing old name in rename node event
• removed animation when searching
• amd anonymous module
• fixed IE8 crash because of .class used
• added is_draggable callback to DND
• fixed bug with nodes duplicating on refresh
• added shortcuts to contextmenu
• fixed bug with copied nodes being removed
• fixes to refresh - did not work and event did not fire
• fixed theme for RTL
• fixed state plugin not correctly reopening nodes
• contextmenu items can now be supplied with a callback
• removed syncing back and forth with jQuery data