erp5_catalog: Rename Folder module from OFS to remove conflict between it and...

erp5_catalog: Rename Folder module from OFS to remove conflict between it and the Folder module from ERP5Type.Core

product/ZSQLCatalog/ZSQLCatalog.py

@@ -20,6 +20,7 @@ from App.class_init import default__class_init__ as InitializeClass
 from DateTime import DateTime
 from Acquisition import Implicit, aq_base
 from Persistence import Persistent
+from OFS.Folder import Folder as OFSFolder
 from Products.ERP5Type.Core.Folder import Folder
 from DocumentTemplate.DT_Util import InstanceDict, TemplateDict
 from DocumentTemplate.DT_Util import Eval
@@ -63,7 +64,7 @@ def manage_addZSQLCatalog(self, id, title,
     return self.manage_main(self, REQUEST,update_menu=1)
 
 
-class ZCatalog(Folder, Persistent, Implicit):
+class ZCatalog(OFSFolder, Persistent, Implicit):
   """ZCatalog object
 
   A ZCatalog contains arbirary index like references to Zope