added facebook registration and login; identified classmates
added some modles and added a migration
changed sign in to sign in/up
added the begin catch code in fb sign in and added the koala gem
added the facebook invite friends feature
changed gemfile and schema
Merge branch 'adding_facebook_invite'
fixed the conflict in db schema
added sass gem
added the functionality to populate enrollment; changed the layout of the facebook invite link; change the scaping script to download graduate student classes as well; downloaded the timinigs of classes
changed the desgin of the app before login
made sure that the sign in div is in the middle of the website; added a logo for brand; added the orange sign up button in sign in; tried to solved the user delete problem but did not work out so well
Added Logo
Logo

Avishek added this?
Added logo

The logo was added
 Workied studysessions

Changed some devise settings, hoping this wont change anything. Also
working on the views.
Deleted Logo
Merge branch 'master' into Mustapha's-Branch

Conflicts:
	Gemfile.lock
	app/controllers/courses_controller.rb
	app/models/course.rb
	app/views/layouts/application.html.erb
	config/routes.rb
	db/schema.rb
Solved conflicting changes