Implemented a new ownership a new protocol for overriding the "super

cannot create" rule.  We define a __creatable_by_super__ method that
returns a true so that user folders (BasicUserFolder) could make
themselves addable by super for bootstrapping purposes.

lib/python/AccessControl/User.py

@@ -84,7 +84,7 @@
 ##############################################################################
 """Access control package"""
 
-__version__='$Revision: 1.104 $'[11:-2]
+__version__='$Revision: 1.105 $'[11:-2]
 
 import Globals, socket, regex, SpecialUsers
 from Globals import HTMLFile, MessageDialog, Persistent, PersistentMapping
@@ -656,6 +656,8 @@ class BasicUserFolder(Implicit, Persistent, Navigation, Tabs, RoleManager,
             if hasattr(self, 'aq_base'): self=self.aq_base
             container.__allow_groups__=self
 
+    def __creatable_by_super__(self): return 1
+
     def _setId(self, id):
         if id != self.id:
             raise Globals.MessageDialog(