*add tales to enable my_aggregate_title_list when line does not have any variation defined
* unproxify variation_category_list field, was  not displayed correctly
*add script to test when to make quantity non-editable

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@27154 20353a03-c40f-0410-a6d1-a30d3c3de9de