With proper configuration it's now possible to make generic ERP5Site_viewHomeAreaRenderer (usable to render a gadgets in columns). Make ERP5Site_getActiveKnowledgePadForUser generic.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@40915 20353a03-c40f-0410-a6d1-a30d3c3de9de