Place the message-id in the body of the email

This approach will help detect responses to the ticket thread from mail
clients which do not include the References and In-Reply-To MIME headers.
This also allows the Subject line to continue to omit the ticket number.
Make tempnam play nice with open_basedir restriction on.
Collapse the signature box and show on hover
Merge pull request #631 from protich/issue/607

Make tempnam play nice with open_basedir restriction on.

References:
http://us2.php.net/manual/en/function.tempnam.php#93256

Reviewed-By: Jared Hancock <jared@osticket.com>
deploy: Touch version number on deployment
packager: Package with error reporting disabled
Merge pull request #630 from greezybacon/issue/562

Fix packager and deployment issues

Reviewed-By: Peter Rotich <peter@osticket.com>
Revert click to preview change.
Remove assignment warning

The warning was meant to be humorous but apparently the world has no sense
of humor.
Merge pull request #641 from protich/issue/click2view

Revert click to preview change.

Reviewed-By: Jared Hancock <jared@osticket.com>
Merge pull request #642 from protich/issue/assignmentwarning

Remove assignment warning

Reviewed-By: Jared Hancock <jared@osticket.com>
Put the ticket number back in the subject line
Close tip popup on click outside the tip box.

Credit: http://stackoverflow.com/a/7385673/2867073
faq: Fix last modified time not to be midnight

It was also the last-modified date of the category -- not the actual FAQ
article itself
Fix creeping widget sizing on user create
Only intercept <ESC> if we have an overlay shown
Stop propagation on intercept
Merge pull request #645 from protich/issue/close-tip-onclick

Close tip popup on click outside the tip box.

Reviewed-By: Jared Hancock <jared@osticket.com>
i18n: Allow Unicode characters in the username
Unassign reopened tickets if claim on response is NOT enabled.
Merge pull request #644 from greezybacon/issue/489

Put the ticket number back in the subject line

Reviewed-By: Peter Rotich <peter@osticket.com>