Merge pull request #2 from aguibert/master

Fix models.py for real
Merge pull request #3 from aguibert/master

Initial work on questionbuilder
draggable Sidebar
start of question builder
Merge pull request #4 from travisreed-wf/layoutSelector

Layout selector
quizBuilder is 100% done
Merge pull request #5 from travisreed-wf/layoutSelector

Quizbuilder updates
new views
Merge pull request #6 from travisreed-wf/layoutSelector

new views
Ability to remove questions in QB.  Fixed sidebar in QB.

Minor additons:
 - moved question files to common area

NOTE: need to fix the multi-choice button groups