(WIP) tests for models, views and collections in newsfeed #76
adds more tests, fixes errors where a logged in user is required
adds a few event related tests for all newsfeedItem types
Merge branch 'feature/newsfeed-tests' into develop

Conflicts:
	dist/koemei-widget.js
	src/koemei/coffee/view/newsfeed/newsfeed_answer.coffee
	src/koemei/coffee/view/newsfeed/newsfeed_caption.coffee
	src/koemei/coffee/view/newsfeed/newsfeed_item.coffee