Fix XSS Vulnerability In "tpl.inc.php"

Another area was also outputting the unsanitized value.
oops: Properly format text thread bodies
Merge pull request #1360 from greezybacon/issue/1292

oops: Properly format text thread bodies

Reviewed-By: Peter Rotich <peter@osticket.com>
Merge pull request #1163 from KyraD/patch-2

Fix Additional XSS Vulnerability In "tpl.inc.php"

Reviewed-By: Peter Rotich <peter@osticket.com>
Merge remote branch 'upstream/develop' into develop-next