0002137: Support for adding multiple categories in one step. The way to do
that is to enter the category names separated by the pipe character '|'. Hence,
'A|B' will add category 'A' and 'B'.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1144 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9