Comment Upvotes work

Were broken, now working properly.  Cool.
Downvotes Added

I pretty much just copy/pasted the upvote functions and renamed them downvote, as well as changing the 'upvotes' fields in the Schemas to 'votes.'  Perhaps having a 'voteHandler' function or something that grabs a varible of vote that can be set to up or down would be better, but this really isn't too bad I'll only need it twice.