* Upgrade to Redactor 9.1.7
  * Use a (x) icon from font-awesome for the dialog

Ultimately, in the user information ("contact information") form, forbid
updating a user's email address to an email address in use by another user.
Because email addresses are a unique identifier of user accounts, they
cannot be reused between different users.

Fixes #126

Before, the draft was only cleaned up when progress on the ticket was
tracked with the reply box.

Validation errors in user form were not displayed on the interface

Fixes #111

If an email arrives in the system without a "personal" field (name), the
email address is used as the name. The email address, however, is not parsed
well by the PersonsName constructor. This patch uses the mailbox of the
email address as the name.

Also include a slight boost to the mbstring compatibility functions declared
in the bootstrap::i18n_prep() function

And extend the information to email templates

When localized date formatting was implemented, saving of those dates in the
database was broken. This fix correctly handles custom date fields to/from
the database.

The typeahead for user email address was dropped somewhere along the way

Filters should not be run alongside basic ticket validation

Fixes #23

Fixes #77

If a form field is required, then a name will be necessary in order to plumb
up the API.

The quickList() method will attempt to ask the database to find filters that
might match the incoming ticket information. The idea is that MySQL is
likely faster than PHP. The problem is that it assumes positive logic is
being utilized.

This patch adds all filters with at least one rule with dn_contain
(does-not-contain) or not_equal (not-equal)

Add information about current software versions, server software, php
extensions loaded, and database space usage.

In the future, this will offer a nice place to add an import/export button
for data backup and restore, announcements, and more

Fixes #64

Fixes #65

Fixes #78

Fixes #80

If the HTML ticket thread is enabled and the message is not explicitly
declared to be text, then assume it is an HTML message.

Also ensure that the ticket thread is displayed in a <div> container as some
browsers seems to frown upon <iframe>s in <td> elements

Fixes #75

formset_id was not renamed to form_id after our rebase

PHP can't discern the difference between d/m/Y and m/d/Y when just the date
is submitted to strtotime(). Unfortunately, strptime() is not available
until PHP 5.1.0. This patch forces datepickers to change their values to
YYYY-MM-DD upon submission to disambiguate parsing issues.

Fixes #832

This will hopefully remove some of the confusion from the repeated
names in the various initial data