added 'product_line' category to Resource.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@1861 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/Resource.py

@@ -186,5 +186,5 @@ class Resource:
                     'weight_unit', 'length_unit', 'height_unit', 'width_unit',
                     'volume_unit',
                     'price_currency',  'source_price_currency',
-                    'destination_price_currency', )
+                    'destination_price_currency', 'product_line',)