Extracted the code for setting a new original avatar to the Profile
class, and moved some of it to Avatar, too. This makes it easier to
have the same functionality whether an avatar is set using the profile
settings (for our users), or on a remote subscription. Necessitated
changing the filenaming function to just take an ID.
darcs-hash:20080605193708-84dde-a441cc0474951ce7f1a1da9310b5145c0b7c3070.gz
Did considerable work on the settings section.
Redesigned the DB to allow avatars. Each avatar image has a size and
an URL. There can be multiple avatars per profile, just different sizes.
Added accessors in Profile for avatar. Show the avatar in lots of
places, where it makes sense. Constants for avatar sizes in common.php.
darcs-hash:20080515162844-84dde-fe0630366e247c02ca8ca9d1cc6b963cfce57a26.gz
