Several places in the code initialize a list of objects from the database
and only fetch one item. In certain instances (which seem almost like a race
condition), MySQL will feel like there are more records available in the
database and will complain with "Commands out of sync, you can't run the
command now".

This patch addresses the issue by utilizing the ::one() method of the
QuerySet where only one record is expected. The ::one() method is further
designed to fetch all one results (which satisfies the MySQL client library)
and return the first item.

Fixes #980

Retire canned response append checkbox on ticket reply.

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

Help Topics improved

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

Correctly generate ticket_link for message confirm

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

dept: Allow saving of various alert recipient opts

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

As previously implemented, only "Department and group members" could be set

forms: Ensure the issue summary will have data

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

Fix a couple issues on page management

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

redactor: Upgrade to version 9.2.4

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

Otherwise, no column will be added to the %ticket__cdata table and the
ticket queue pages will be crashed (empty).

Use the topic associated with the email if any, and the topic defined as the
system default as the last resort. In either case, the form associated with
the help topic will be added to the ticket, but no data will be put into the
form fields.

user: Fix variable replacement for %{ticket.user}

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

Update class.mailparse.php function splitHeaders

Reviewed-By: Peter Rotich & Jared 

The default mode going forward will be to insert when Rich Text support is
enabled and append otherwise. To clear the draft the user can simply click
reset or delete draft icon on the bar.

Enable delete draft option on reply & internal note boxes for consistency.