Make Business Path work as a Predicate, and use the predicate API to select business paths at Business Process so that we can select appropriate business paths with the API, not only with a trade_phase category.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@34031 20353a03-c40f-0410-a6d1-a30d3c3de9de