Added test for card controller to add new comment
Added new comment functionlity
Show comment's create date in card page
Made card popup stay on top with scrollbar
Added template for editing and deleting comment

The comment_spec test is ment to be broken in this comment so I
rembember to fix it later
Eabale to edit card's comment
Added support of editing comment through API V1
Added css for showing lists
Now we can move the cards around!
Gave better name to cards sortable ul
Another try to save the cards into the correct order

In someday I might think handling this in backend, handling it in JS gives me a lot of
headache :(