make sure we work for getfeature requests that return content > 32000
make sure we work for getfeature requests that return content > 32000

git-svn-id: 8e0fbe17d71f9a07a4f24b82f5b9fb44b438f95e@660 b426a367-1105-0410-b9ff-cdf4ab011145

monoid/owslib,monoid/owslib,sabman/OWSLib