Mass Ticket Actions

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

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

ui: malformed featured FAQ URL in sidebar

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

Fixes #2364

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>