Fix "Class 'phpbb\titania\controller\ucp\titania_types' not found" error.
Delete contrib|support subscription if contribution no longer exists.
[ticket/633] Fix broken links in UCP module.

CUSTDB-633
Fix issue with download info box hiding if not moving cursor fast enough.
Fix category filtering by contrib type in Safari.
Use correct title & description in Manage section subscriptions module.
[ticket/636] Fix undefined variable: authed.

CUSTDB-636
Fix incorrect language key for extension's denial message.
[ticket/635] Fix issue with revision not getting repacked but resubmitted instead.

- Also fix queue URL to redirect to.

CUSTDB-635
Fix incorrect language key.
Bump Ascraeus to 3.1.1
Remove unused CSS.
Fix language pack panel layout.
Start cleaning up common.js.