* use locks from portal_classes itself, because locks from temp objects
   cannot be reused (only visible on zope 2.12)
 * reimport files after edition, in an after commit hook, if after commit
   hooks are available (ie. on zope 2.12 only)


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@34333 20353a03-c40f-0410-a6d1-a30d3c3de9de