[REF] tablesorter: rename Users file and class to Adminusers to be closer to the name of the page the table is on. Add a note to synchronize changes in the tpl affecting columns shown with the related tablesorter logic

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@46650 b456876b-0849-0410-b77d-98878d47e9d5