New config option (reminder_recipents_monitor_bug): To automatically add
recipients of bug reminders to the monitor list of the defect. This is done if the
access level is greater than or equal to monitor threshold and the recipient is
not the handler or the reporter.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1674 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9