more succinct paypal instructions, added header text on challenges page.
added totalDisbursed to challenge.  now showing grand total disbursed on home screen.
wrap Decimal
auto-subscribe to mailing list when email is provided.
typo fix
de-emphasise past challenges on user page
only fetch new activities if stale (last update was more than 5 mins ago).  better sorting for challenges page.
20 mins
added email settings to local_settings template
Merge branch 'refs/heads/teams' into python-social-auth

Conflicts:
	fitcompetition/static/css/style.css
	fitcompetition/templates/inclusions/player_email.html
back to oauth1 for map my fitness.  still not functional.