Little shits

	modified:   app/controllers/rotations_controller.rb
	modified:   app/controllers/shifts_controller.rb
	modified:   app/mailers/shift_notifier.rb
	modified:   app/models/shift.rb
	modified:   app/views/events/_form.html.haml
	modified:   app/views/shifts/_form.html.haml
	modified:   config/routes.rb