Conflicts:
- `README.md`:
Upstream updated copyright year, we don't mention it so kept our version.
- `app/controllers/admin/dashboard_controller.rb`:
Not really a conflict, upstream change (removing the spam checker) too close
to glitch-soc changes. Ported upstream changes.
- `app/models/form/admin_settings.rb`:
Same.
- `app/services/remove_status_service.rb`:
Same.
- `app/views/admin/settings/edit.html.haml`:
Same.
- `config/settings.yml`:
Same.
- `config/environments/production.rb`:
Not a real conflict, upstream added a default HTTP header, but we have
extra headers in glitch-soc.
Added the header.
