Conflicts:
- `app/helpers/theme_helper.rb`:
Conflict caused by our different theme systems.
Ported upstream's changes.
- `app/models/account.rb`:
Upstream basically made a change we already made.
Moved constant declaration to match upstream.
Conflicts:
- `app/helpers/application_helper.rb`:
Conflict because of our different theming systems.
Updated accordingly, along with `app/helpers/theme_helper.rb`
and `app/helpers/theme_helper_spec.rb`.
