Merge branch 'master' of git://github.com/melinath/philo

* 'master' of git://github.com/melinath/philo:
  Re-tweaked page add form to preserve 'continue on normal save' functionality. This is implemented with javascript and will probably break some time in the future, but there doesn't seem to be a better way to do it at the moment. Fixes bug #8.
  Tweaked page add_form template. Fixes bug #8.
  Moved templateform to forms.py in preparation for experimentation with page forms.
  Added collapse classes to attribute and relationship inlines on entities.
  Added template code validation to the admin. This essentially addresses bug #14 by catching errors with validation on templates instead of letting it show up as a server error later. (Note that there should still be better validation on Pages, as deletion of a template say on the filesystem could render a db-driven template invalid.)
  Set TreeModel slug field length to 255 to match Titled