Lots of modifs

bin/addons/base/base.sql

bin/addons/base/base_security.xml

bin/addons/base/ir/ir.xml

bin/addons/base/ir/ir_actions.py

bin/addons/base/ir/workflow/workflow.py

bin/addons/base/res/partner/partner_demo.xml

bin/osv/fields.py

bin/osv/orm.py

bin/osv/osv.py

bin/workflow/instance.py

bin/workflow/wkf_expr.py

bin/workflow/wkf_service.py

bin/workflow/workitem.py