Add "assignor" to persons allowed to pass the "stop" workflow transition in accounting.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5093 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_accounting/WorkflowTemplateItem/portal_workflow/accounting_workflow/transitions/stop_action.xml

@@ -89,6 +89,7 @@
             <key> <string>roles</string> </key>
             <value>
               <tuple>
+                <string>Assignor</string>
                 <string>Assignee</string>
               </tuple>
             </value>