Notes that this commit should not change the front page for any site at beginning. So for projects that not use access tab, this commit should change nothing.

For projects thats use access tab, it required to check Access tab Front Page at User Interface preferences. This field is only available for managers.

For projects that has their own front pages, increase their business_template_skin_layer_priority at your project skin folder over than 100.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20966 20353a03-c40f-0410-a6d1-a30d3c3de9de