zope.interface.Interface on Zope 2.12 no longer implements the deprecated isImplementedBy method call that got renamed already on Zope 2.8. (approved by jm)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29888 20353a03-c40f-0410-a6d1-a30d3c3de9de