Remove variable names from explicit propagation, because they must be generated explicitely in the page templates which require them. Further cleanup is still required for some of the remaining names.
Add explicit rendering of variables whose name were removed from filter script.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10682 20353a03-c40f-0410-a6d1-a30d3c3de9de