Added CreateAFactory setting to add form. Why is this needed?

Don't we always want this to default to true?

Added CreateAFactory argument when calling the real constructor.
This cased adding classes as methods to return no data.

lib/python/ZClasses/ZClassOwner.py

@@ -89,13 +89,15 @@ import ExtensionClass, Globals, ZClass, Products
 class ZClassOwner(ExtensionClass.Base):
 
     manage_addZClassForm=Globals.HTMLFile(
-        'addZClass', globals(), default_class_='OFS.SimpleItem Item')
+        'addZClass', globals(), default_class_='OFS.SimpleItem Item',
+        CreateAFactory=1)
 
-    def manage_addZClass(self, id, title='', baseclasses=[], meta_type='',
+    def manage_addZClass(self, id, title='', baseclasses=[],
+                         meta_type='', CreateAFactory=0,
                          REQUEST=None):
         "Add a ZClass"
         return ZClass.manage_addZClass(
-            self, id, title, baseclasses, meta_type, REQUEST)
+            self, id, title, baseclasses, meta_type, CreateAFactory, REQUEST)
 
     def manage_subclassableClassNames(self):
         r={}