If a client is already logged into the system and follows a second ticket
link, show the ticket instead of the list of tickets.

Conflicts:
	include/class.ticket.php

Support viewing tickets without a departments

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

forms: Better failsafe for __toString

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

Unpack user information

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

This can happen when associated department is private and the system has no
default department (which is possible with v1.6 upgrade)

This mostly helps when fields change types. If the type of the field
currently cannot convert previous data to a string (like if a short-answer
field was changed to choices), the textual representation of the PHP value
of the field data is given.

Allow new ticket without required contact fields

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

Also, default size should not decrease if different signatures are selected

If a staff member creates a new ticket and cancels the user-lookup /
create-new-user dialog, and the contact information form has a required field
other than the name and email address fields, the ticket cannot be created
because the required fields for new clients are not shown and can therefore
not have a required value.

This patch allows new clients to be created without the required fields when
the ticket is created by staff members.

This issue was addressed for htmLawed, where the UTF-8 version of a
non-breaking space, 0xc2a0 would be collapsed to 0xa0, which would very
likely create an invalid Unicode character, and the text block would be
dropped or truncated.

fix: Restrict access to closed tickets

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

sla: New SLA's default to alert when overdue

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

When checking ticket access - only consider assignment IF the ticket is
open. This is required since staff_id field is overloaded to show who closed
the ticket.

Allow a callback function to be used to determine if an error should be
logged and an alert mailed

email: Drop stripped images

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

If images are included inline in an email and the quoted-response removal
algorithm drops them, then silently drop the attachments

i18n: Allow Unicode characters in the username

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

Unassign on reopen

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

Fix creeping widget sizing on user create

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

faq: Fix last modified time not to be midnight

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

Put the ticket number back in the subject line

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

Close tip popup on click outside the tip box.

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

Stop propagation on intercept

It was also the last-modified date of the category -- not the actual FAQ
article itself

Credit: http://stackoverflow.com/a/7385673/2867073