fix for 0004916: Workflow checking is not implemented on bulk Update Status
(selecting multiple issues on View Issues)
(thanks to packeteer)
fixed bulk update status to use $g_set_status_threshold

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@3134 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9