dimagi/Vellum — pull request #14 by czue (2012-11-12 19:15:39+00:00)
Title: bugfixes related to tree drag and drop

- prevent adding questions to data nodes.
- prevent bug where you got bad XML if you dragged a question out of a
group onto a data node.
- fix javascript exceptions from being raised when you first move questions
when loading the form
- minor cleanup