Allow Event.slug to be blank so it can be autogenerated.
Automatically create userprofiles on account creation.
Add db unique_together for user + question for each Vote.
Cleanup of vote view.

 * Vote.objects.get_or_create to Vote.objects.create try/except. This
   will allow us to solve issue #42 in the future.
 * Change response mimetype to 'application/json'
Undo upvote frontend.
Undo upvote backend, fixes #6.
Add __unicode__ to models.
Make input more visible
Fix asked questions UI.

(regression from 855123f)
Automatically upvote new questions with user's vote.
Add archive functionality in events.
More code for archive functionality.