Mumfrey/WorldEditCUI — pull request #2 by ReneZeidler (2014-02-01 14:57:35+00:00)
Title: Fix for Bungee servers

Always sends a new handshake packet when the world changes (to detect that the player switched the server). Also clears the selection because it is bound to a world and shouldn't be kept on another world.
Because the server doesn't send the current selection when joining the game or receiving a handshake, we need to trick it with "/we cui" to send the selection.