Base_setDefaultSecurity has been launch on web_site module to be compatible with erp5 conventions. Keep compatibility with anonymous roles by giving him "view" and "accessConntentInformation" permissions.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29690 20353a03-c40f-0410-a6d1-a30d3c3de9de