Users can follow issues now
Merge remote-tracking branch 'origin/issue-following' into create-issue

Conflicts:
	kuansim-frontend
Added logic for before_filters for user_login and cookie verification
Working on get events by user and issue.
Merge remote-tracking branch 'origin/issue-following' into create-issue

Conflicts:
	app/controllers/events_controller.rb
	app/controllers/users_controller.rb
Fixed get_user_events_by_issue
Fixed spec tests.