Profile views: Call the view directly, without any alias
Profile views: Move all profile URLs to accounts app
Profiles: sanitized URL pattern name
User: converted profile edit view into a CBV

This implies getting rid of pootle_profile app
User: adjusted profile views

As a result the profiles app was wiped out
Settings: Remove remnant of pootle_profile

Not sure if this is a good idea.
Bugfix: Make migration run in MySQL as well
Simplify account migration

Might take more time to run, but code is simpler to understand.