Also, fix submission without a lock and locks are disabled

- Adds mass assign, transfer to ticket queues
- Retire inline forms for ticket assignment and transfer

And two flags, one which signals that stored HTML is correctly balanced and
does not need to be balanced when rendered in the ticket view. The second is
used to signal messages received from collaborators.

Additionally, this patch fixes showing external inline images (via the [Show
Images] button) when clicked.

* Set all "route department" filter actions to "unchanged"
* Fix bug in quick-add code where new option was not properly added

Instead, locking would stay active and would warn you about expiring lock
after navigating away from a locked object.

Initially, include support only for Gravatar

This patch shores up the new list management feature with the custom list
handler feature written to support lists being saved in a table other than
%list_item, namely the built-in ticket status list.

Also squelch the 'You sure?' popup appearing multiple times.

Also fix several javascript errors on ticket edit

This allows messages to be stashed in the session and displayed on a
following request. This will be pivotal in implementing the PRG
(post-redirect-get).

* Make the "Items" tab the default
* Drop the "Showing ..." text and add a count to the items tab
* Redirect to "Items" tab when creating a new list
* Add a new list item by ajax rather than refresh