Upgrade to Djano 1.6 and South 0.8.4
Migrate schemas & datas from User to Athlete, using South.
Update models User usage to Athlete.
First cleanup pass of get_profile.
Update user fields in apps using South.
Rename m2m ClubMembership user_id column in athlete_id
Remove UserProfile model. Fix profile page edition.
Fix club pages.
Fix typo in backwards migrations
Merge django-1.6 support
Continue loading activities after one fails.