Release 04062014

Hello!,

This is a release branch of our work over the past two quarters! This includes multiple new features including:
	- Notification System
	- Ability to delete experiences and associated work files
	- Public evidence page for badges
	- Image Cropping
	- A new way to request instructor permissions
	- Ability for administrators to revoke / delete badges
	- Multiple CSS fixes
	- etc, other misc fixes.
	
Thanks!

Team Ace - ECS193B.