More changes to the css.

Why the hell it behaves differently between my dev server and the server itself is a good question. Still bugs on mysleep page
I'm a derp with css too - bugfixes
Okay that scrollbar looks stupid.
Adds a useful __unicode__ to FriendRequest
Start of more metrics

The rest of more metrics will be in a seperate app and on a seperate
branch for now.
More css bugs
More fixes in css
Hopefully fix some wierd css errors
Improves the admin panel
Adds admin panel searching
Updates text on mysleep.
Adds optional timeout to @cache_function().
Adds extra prefetch on friends.
Make fourier stats better.

Blame face if the math is wrong.
Adds <a name=stuff>s to the FAQ.
Adds the number of users on leaderboard.
Lets users to choose which metrics to display
Fix to user metric choices for anonuser.
Replaces Sleeperprofile.objects.get(user=user) with user.sleeperprofile in a couple of places.
Fixes leaderboard sorting