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

Render empty tables as an empty string

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

Support HTML printing  to PDF

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

Upgrade to Redactor 9.1.6

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

Fix incorrect sql statement

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

in Client::getLastTicketIdByEmail()

This provides better compatibility with mPDF, which doesn't support the CSS
white-space:pre-wrap property

Avoid adding extra slashes to the INCLUDE_PATH

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

Fix keeping selection value in a selection field

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

Retire TCL based uninitialized variable lint

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

Draft cleanup revisited.

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

Fetch file data before hashing 

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

When the include path is written in bootstrap.php, ensure that extra slashes
are not accidentally added

Previously, the value of the selection was lost in the request and, if the
form field was marked as required, then a ticket could never be submitted.

Use a PHP setup which uses the built-in PHP tokenizer to parse and traverse
PHP scripts to determine (possible) access to uninitialized variables

Only clean note drafts unless the ticket is being closed.

Provide a minimum width for table cells

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

Fix syntax error :(

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

Also, add footnotes to the bottom of the rendered document for links that
are longer than half the document width.

html2text revisited.

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

Support ownerId in simple search

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

Fix preg_replace bugs

Consistently handle emails

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

If the xml extension for php is not loaded, this patch will do a better job
of honoring line break hints in the html.

Fix deployment script

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

Fix NOTICE errors from cli cron

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