Fix oops in htmLawd callback for HTML cleanup

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

Fixup templates to work with Redactor in line break mode

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

Remove placeholder text if found in the draft save

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

The issue has been filed with Imperavi, but no ticket number or other
tracking information was returned.

Also, if any non-shipped .htaccess files exist, don't clean those either

Fixes #60

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

Include changes made just before 1.7.3 release

Conflicts:
	include/ajax.config.php
	include/class.ticket.php

Use seemingly-random form input names

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

Add %{ticket.user} to ticket template variables

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

Fix oops in text email conversion

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

Provide fallback functions for mbstring module

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

Advertise new prerequisites on install and upgrade

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

Make cacheable more portable

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

Start translatable help popup "tips"

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

Remove <![if !mso]> tags and friends

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

Allow internal, required fields

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

In some edge cases, priority may not be set for a ticket

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

Add long lost kb category listing background

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

Add --clean option to deploy script

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

Use system date format for date picker

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

Previously the American date format (m/d/Y) was used exclusively for
formatting dates in the datepicker widget. This patch enables the widget to
be formatted based on the format set in the admin panel.

Fixes #829

Content disposition parameters are optional

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

If a Content-Disposition header exists for an attachments, it isn't required
to have any parameters (like a file name)

Overhaul the popup tips from the installer to make them translatable and
work toward popovers for all the admin and staff panel settings.

Also remove CSS properties from the style attribute that are browser
specific (like -webkit-* and such)

Previously, clients would not be able to create tickets if an internal,
required field existed on any of the forms presented to the user. Instead,
they would be stuck at permanent validation failure because there was no
data for a required field not shown.

This patch adds a feature to the form and dynamicFormEntry objects'
isValid() method to receive a callable to filter which fields' errors should
be added to the form's errors list. This allows for more complex validation
where in some cases, validation errors should not be considered on some
fields.

Fixes #45

Fixes #40

Move the cacheable code to the Http class and allow the client configuration
to be cached in the browser