Started to make event comments work like talk comments in the model layer, and therefore make the shared comment template work.
Don't load the event comments unnecessarily
Removed the (now old style) event comments test, but added some other event tests to maintain karma
Couple more tests
Merge branch 'master' of https://github.com/joindin/joindin-web2 into comments

Conflicts:
	app/templates/Event/details.html.twig
	app/templates/_common/comment.html.twig
	app/templates/_common/rating.html.twig
Merge branch 'pr82'