created assignment routes and views
Merge branch 'master' of https://github.com/kevsherman/bbk_final_project into assignments
guests can be assigned to a subevent from the subevent show page
Merge branch 'master' of https://github.com/kevsherman/bbk_final_project into assignments

Conflicts:
	app/controllers/assignments_controller.rb
	app/views/sub_events/show.html.erb
Guests can be deleted from the subevent
Merge pull request #13 from kevsherman/assignments

Guest assignments and deletes to specific subevents