fix registrations_controller security
secure periods also remove deprecation
secure events controller
secure zones controller
secure access levels controller and fix test
Merge branch 'master' into fix/more-can-can
Merge pull request #144 from ZeusWPI/fix/more-can-can

Add cancan restrictions on the event management tabs
Merge branch 'master' into feature/330/registration-search-functionality

Conflicts:
	app/controllers/registrations_controller.rb