allow naming Property Holders

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42806 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Base.py

@@ -319,8 +319,8 @@ class PropertyHolder(object):
                                '__ac_permissions__',
                                '_erp5_properties'))
 
-  def __init__(self):
-    self.__name__ = 'PropertyHolder'
+  def __init__(self, name='PropertyHolder'):
+    self.__name__ = name
     self.security = ClassSecurityInfo() # We create a new security info object
     self.workflow_method_registry = {}