made models more DRY, moved get_tweet to bb mixin
Merge pull request #1296 from onepercentclub/feature/BOOK-1009

made models more DRY, moved get_tweet to bb mixin
Merge remote-tracking branch 'origin/develop' into feature/BOOK-956
added ember helpers, added action on route for listening to "write first update"
got the right order for the components down, now fix the binding