Due to API changes and possibly a bug in pysvn 1.7.x, revert does not work recursively with recurse=True on pysvn 1.7.x. So try to use pysvn.depth.infinity, if available.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31235 20353a03-c40f-0410-a6d1-a30d3c3de9de