adding mongoid-likeable gem
added like/unlike actions in backend with frontend feedback
like/unlike working with ajax with js specs
fix a bug where liking an entry affected other entries, fix like button initial css class
run specs with ajax
deny liking an entry when not logged in
fixes for ajax, adding inline message when clicking been_there
been there button becomes un-been there when clicked
Merge pull request #145 from adamico/mongoid-likeable

Like/unlike entries function backed up by mongoid-likeable