added attr_accessible for primary keys to votes
Merge branch 'master' of https://github.com/TalkativeTree/eventoverflow into vote
fixed vote rspec tests, added polymorphism to vote/event releationship to comment and event.
merged with master, fixed same merge conflicts with user model associations
added attr_accessible for primary keys to votes
merging polymorphich changes to votes, events, comments. Successful tests for vote model