added instructions to README to add browsers to karma and added chrome to karma
added unsubscribe button to the channels list page
Merge branch 'next-happy' of https://github.com/asnoakes/cimba into next-alex
posts are fixed size with a read more button
added read more button and fixed text wrapping for posts
fixed an issue with channel authors for subscribed channels
Merge branch 'next-happy' of github.com:asnoakes/cimba into next-happy
fixed error with posts not loading on home page
pull alex's changes for unsubscribe