Getting the basic hats frontend changes into master so my branch stops
diverging from the templates. Migrates the existing cakeday partyhat
functionality to the new system also.
Establishes a (hopefully) static interface for PFP hat display:
- Hat image assets are 100px w x 130px h and anchored to the bottom-
left corner of pfps.
- User.hat_active provides either empty string or the internal
string identifier for active user hat.
- User.hat_tooltip provides mouseover text. Likely only to be used
for cakeday hats on one's cakeday.
Additionally, per discussion with Carp, PFPs in comments and posts
increased from 25px diameter to 30px.