decorate leaderboards view; remove references to profile view (replaced by user_profile)
change css to remove gray on bottom of page (lingering from when footer was being considered)
enable users to join and leave teams at will; change the fitgoals urls.py a little for events handling; change fitgoals views.py and two templates.
Merge pull request #68 from ns-uw/master

3 commits from today
Merge remote-tracking branch 'upstream/master'