refs #2: added simple tests for expected behaviour for votes
refs #2: added a vote module and added it to installed apps
refs #2: added test for dealing with anon users
refs #2: deal with anon users now
refs #2: added a test for unique constraint between user and idea on the vote table.
refs #2: Added the unique together restraint between user and idea on vote.
Merge pull request #2 from studioaceofspade/issue_2

Create a table for votes