* modify some selection_name on listbox to be unique and avoid conflic
* modify some permission to assignee on draft state of egov_universal_workflow. Now it's allowed to add, delete and modify portal content .

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23820 20353a03-c40f-0410-a6d1-a30d3c3de9de