* drag windows around within pager
* dnd when going outside of the pager
* window placed at location in pager of drop
* window centered under mouse when dropped off of pager
I'm not sure yet to do with original window when dragging off the pager. Right now it stays at last "on pager" location, which is a bit ugly. Should it jump back to the original position? Or disappear entirely?
SVN revision: 21555