integration with django-social-auth
django-social-auth working with custom user (FitUser).  various user details stored on FitUser now.
renamed goal to challenge.  made the home page show a list of challenges.  clicking a challenge shows it's details. acceptable activity types can be chosen in the admin for a challenge.
support for FitUser many to many mapping per challenge.  Users will be able to join any challenge they like.
refining the challenge page details
now persisting runkeeper fitness activities.  significant speed improvement because we can now use efficient local database queries to display table information
added an api endpoint to get user activities for a challenge
now persisting fitness activities to the database and updating them efficiently based on the last update time for each user.
some ui enhancements, refresh button added to challenge page.  avatars and links to profiles.
ajax loading activities and injecting them into the popover
Refactored how health graph data is persisted.  Now polling runkeeper api when a user logs in, updated command to be DRY.  Resolved a few glaring bugs.