Added support for supervariables ($_SERVER, $_REQUEST, etc.) in PHP >= 4.1.0, since the old variables were deprecated. In the future the extract() call should be made obsolete by the use of $_GET and such throughout Mantis.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1201 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9