Add ticket class (just incase the parent doesn't have it included)- required...

Add ticket class  (just incase the parent doesn't have it included)- required to fetch staff's ticket stats.

include/class.staff.php

@@ -13,6 +13,7 @@
 
     vim: expandtab sw=4 ts=4 sts=4:
 **********************************************************************/
+include_once(INCLUDE_DIR.'class.ticket.php');
 include_once(INCLUDE_DIR.'class.dept.php');
 include_once(INCLUDE_DIR.'class.team.php');
 include_once(INCLUDE_DIR.'class.group.php');