Make it possible to controll authorization for user in case an user can not...

Make it possible to controll authorization for user in case an user can not find a document by reference in URL traversal.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@21027 20353a03-c40f-0410-a6d1-a30d3c3de9de