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.

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

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.

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.

Fixes #958

Also add several lint fixes for packaging

The user preview tool tip and edit dialog use the same user template.
Editing on preview mode resulted in partially hidden edit form. This fix
adds ability to popup a dialog modal on edit while on preview mode.

On the user profile page, the link to view the organization now triggers a
popup dialog which allows for changing and editing the organization directly
from the user profile page. An additional [Manage] button is added to the
dialog to allow redirect access to the organization page.

ee91d179 introduced a slightly different
tracking system for detecting sessions. Instead of completely disabling the
session system for AJAX and cron requests, it detects if the session is new
or not based on the session_id() and existing data in the session backend.

However, the patch did not correctly determine if a session was new.
Instead, it flagged all session as existing. This patch fixes the detection
of existing session data so that AJAX and cron requests can operate without
writing session data to the backend.

Instead, previously, a maxlength of zero effectively disabled the field,
because it prevented any user input into the field.

function splitHeaders updated in order to correctly parse mail header lines
starting with tabs