Make SelectionTool methods available on Folder documents to avoid a redirect after selection modification. This should fix listbox page changes failing on big listboxes.
Update default listbox rendering page template.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11833 20353a03-c40f-0410-a6d1-a30d3c3de9de