Several small edits to initial email templates

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

Add CLI app for file management

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

Add the current backend to the list results output
Add a --limit switch to support limit results sent to a command like
`migrate`

Allows for backend listing, file listing, single file dump and file
migration.

Allow arguments to have sub-command 'options', so an argument like 'action'
can have a specified list of values, each with respective help output.

Ticket Access Link

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

Ticket owner as well as collaborators can request access link by entering
email and ticket number.

Update recipients count in realtime

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

A ticket owner can't be a collaborator.

Allow clients to edit their information

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

This reverts commit bc773adb.

Ticket count

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

Administrators can disable client edits of ticket information. Hopefully,
this will eventually be replaced by role-based ACLs placed on individual
forms and fields.

Conflicts:
	include/staff/template.inc.php
	scp/js/scp.js

Conflicts:
	include/mysqli.php

Allow staff to cancel user lookup popup when creating a new ticket

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

Make using `realpath` safer

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

The change will allows staff to open a new ticket without going through the
"forced" user lookup popup. On cancel the staff is presented with a
simplified user info form with email and name being the only fields
required.

Include collaborator tickets on search by user.

search: Improve typeahead search results

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

Revisit template management page

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

forms: Allow decl of prompt and default for choices

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

Previously you had to click "Save Changes" for the count to be reflected on
ticket view page.

Fix parameter count to TicketLock::lookup

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