This will make sure that if in a query we will render UTC value rather than locat datetime value. That way we will have consistent queries (by default all DateTime values are saved as UTC in ERP5).

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18060 20353a03-c40f-0410-a6d1-a30d3c3de9de