implement some of the awesome feedback from zee
Merge branch 'master' into answer-scores
implement the ability to downvote, and add model tests for the upvote! and downvote! methods
sort the answers displayed on the show question page by score
refactor with more zee feedback
Merge branch 'master' into answer-scores
Merge pull request #18 from purple-martins-2013/answer-scores

Answer scores