Add a new style in the ods render when we have an editable date field in the listbox.
Now you have two styles, the default style (ie: day/month/year) and the new style named  date_with_time. This style displays the date  In the following way : day/month/year hours:minutes:seconds.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23110 20353a03-c40f-0410-a6d1-a30d3c3de9de