issue: Existing User Registration

Creating Tickets with Attachments

This commit fixes an issue where we were not emailing attachments for initial responses when creating a Ticket.

issue: Default Help Topic Issue Summary

Implement Referral Internal Notes

oops: Selection Search Bug

Email Name Format

Filter Action Send an Email Issue

This commit fixes an issue we had with adding a Filter Action to Send an Email. We had an option at the top for 'Default System Email', however, it did not have the Email ID or address for the system email and would throw an error if chosen. Now, we just retrieve the emails with their IDs and values with the Default System Email being the initial value selected in the list of options.

This commit further corrects issues where emails were being sent out with names being improperly formatted if the name format is set as 'Last, First' or if it has special characters.

This addresses an issue introduced with 4124 where searching for a Selection
Field with the criteria "does not have a value" throws an `implode()`
warning.

This addresses an issue where registering as a non-existing user fails to
register nor create an account. This is due to a check added in `824e92`
that fails if there is no User model found for the address provided.

This commit stores internal notes if an Agent includes one while creating a Thread Referral.

This addresses issue 4473 where users creating a ticket with the Help Topic
preselected shows a validation error for the Issue Summary field. This is
due to the new `getFormName()` function that creates new field form names
based on the user’s/agent’s session. When the Help Topic is preselected,
`_form` is not set for each field so the hashed name of the fields before
ticket submit is different than after ticket submit.

Charset: Add generic transcode php_user_filter

Staff Profile Updates:

Filter Action Saving Fix:

This commit fixes the way we validate filter actions before saving a filter. Now, the code will accurately validate the action without needing a filter_id first while making sure all validations stay withing the validate_actions function.

issue: Image CID Attributes

issue: CDATA Phone Contains

forms: Disabled By Help Topic Users

This addresses an issue where images in email signatures containing a
`data-cid` attribute will either crash the ticket page or not show the image
in the signature.

This addresses issue 4470 where Users creating tickets via Client Portal and
failing to fill out a required field makes disabled fields by Help Topic
appear on the page. When the disabled fields appear they allow Users to
populate and save data that they were not meant to submit.

This addresses an issue where people who do not have a phone field on the
contact information form go to search for a User in the User Directory and
the system crashes. This is due to the search query that always contains the
phone field variable. This only adds the phone variable to the search query
if the field actually exists.

This will be useful when converting content on the fly on write or read -
allowing for support for output filter for file storage backend.

issue: mPDF SetAutoFont RTL

issue: SelectionField nset

This addresses an issue where `SetAutoFont()` was making the Thai PDFs
break. This adds the `AUTOFONT_RTL` flag to only autodetect RTL languages
and nothing else.

This addresses an issue where creating an advanced search with selection
field "does not have a value" throws a fatal error. This was due to an
improperly named search method "notset".

Conflicts:
	include/class.forms.php

Make getFiles() return files

issue: Task Term Search

This commit fixes an issue where the ORM was trying to get invalid Staff fields (which we actually store in the config table), therefore throwing an error.

cron: Clean Expired Passwd Resets

issue: Multiple File Display