- added reference, version and test_method_id to rule objects exported as paths
- added group_type_list in rules type definitions
- added rule test scripts in portal_skins
- added rule_validation_workflow to rule workflow chains

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@17425 20353a03-c40f-0410-a6d1-a30d3c3de9de