Changed bug_view_page.php nto to include bug_file_upload_inc.php when file uploads were disabled - both because they can't do that anyway and because this triggered an error

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1656 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9