Merge pull request #43 from mud-turtles-2014/ajax_for_comments

Ajax for comments
Add ajax for voting
Update to return json object
Replace vote button_to with custom form
Move vote count into partial
Update vote count in done function
Add custom div ids to vote count
Add custom form for down voting
Replace upvote form with partial
Move vote form to partial
Replace downvote form with partial
Move vote display for replies to partials
Replace over-flexible class name call with string
Add listener on arrow div to trigger form submit
Add arrow div styling
Remove submit button from vote form
Expand arrow selector to two classes
Move arrow div to partial for votes
Add success message for posting replies
Reduce textarea height