Deleting messages ability added
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/views/messages/_new_response_to_event.html.haml
	config/locales/ru.yml
Merge branch 'master' of https://github.com/max-konin/Kogdata
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/controllers/conversations_controller.rb
	test/functional/conversations_controller_test.rb
Deleting messages ability added