Added Reference and SortIndex propertysheets

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@6073 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Category.py

@@ -108,5 +108,7 @@ class Category(CMFCategory, Predicate, MetaNode, MetaResource):
     property_sheets = ( PropertySheet.Base
                       , PropertySheet.SimpleItem
                       , PropertySheet.CategoryCore
-                      , PropertySheet.Codification )
+                      , PropertySheet.Codification
+                      , PropertySheet.Reference
+                      , PropertySheet.SortIndex)