clean up a rec todos test
fix empty message in context view and handle removing last active todo from context correctly
Hopfully fix #1434 by updating selectors first. Same fix as #1431 but now for update
Conflicts:
	app/controllers/recurring_todos_controller.rb
weekly days were not getting through to the update of a recurring weekly todo
Merge branch 'master' into new-gui

Conflicts:
	app/views/contexts/show.html.erb