Change Questionniare model to validate presence of
section parameter only on create, & not on update.
Use the AssignmentParticipant for building a StudentTask
Update the schema
Merge branch 'production'

Conflicts:
	app/models/user.rb
Set up relationships between permission, content_page, and controller_action
Fix the balloontip js behavior.
Remove all javascript errors
Update permissions
Finished tasks are listed after unfinished tasks
Add missing routes
Fix extra end
Include analytics in assignment_team
View scores now displays
Add more missing routes
Add route for submitted_content#edit
Fix student task view
Remove unescaped html in the student task view
Fix the topic name in student tasks. Add the course name.
Viewing/Editing/Creating metareviews now shows the review
Remove admin_controller test