workaround for dragend not firing on elements removed from dom
Fixed bug where dropChannel broadcast wrongly on hover.

- When unit testing the code I noticed that when setting
  dropChannel to '*' there would be situations where
  the regex compile in isDragChannelAccepted() would
  fail.  The onDragEnter() handler is broadcasting the
  dropChannel, and the handler for the ANGULAR_HOVER
  event is receiving it and passing it to
  isDragChannelAccepted() as the drag channel.  Changed
  so that onDragEnter() sends the drag channel instead.
fix epic copy paste fail
Merge pull request #57 from mulderr/master

workaround for dragend not firing on elements removed from dom
Merge pull request #60 from jglogan/master

Fixed bug where dropChannel broadcast wrongly on hover.