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

Fixes #2371

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.

avatar: Make avatars more of a utility (with settings)

Reviewed-By: Peter Rotich <peter@osticket.com>

Add restrictions to ticket/task closure

Reviewed-By: Jared Hancock <jared@osticket.com>

Implement generic get dynamic fields lookup routines

agent: Add missing perm for view all agents' stats

Reviewed-By: Peter Rotich <peter@osticket.com>

Fix incorrect usage of department members for alerts

Reviewed-By: Peter Rotich <peter@osticket.com>

dept: Fix incorrect SQL removing a department

Reviewed-By: Peter Rotich <peter@osticket.com>

search: Fix `is` advanced search match

Reviewed-By: Peter Rotich <peter@osticket.com>

topic: Sort localized list case insensitively

Reviewed-By: Peter Rotich <peter@osticket.com>

lock: Fix missing shutdown on navigation

Reviewed-By: Peter Rotich <peter@osticket.com>

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