fix issue 116. Not correctly, but it will not crash and your image will be in the right place. Maybe.
fix issue 116. Not correctly, but it will not crash and your image will be in the right place. Maybe.

git-svn-id: 305ad3fa995f01f9ce4b4f46c2a806ba00a97020@615 3777fadb-0f44-0410-9e7f-9d8fa6171d72

sychen/rst2pdf,openpolis/rst2pdf-patched-docutils-0.8,aquavitae/rst2pdf,aquavitae/rst2pdf,openpolis/rst2pdf-patched-docutils-0.8,aquavitae/rst2pdf-py3-dev,aquavitae/rst2pdf-py3-dev,tonioo/rst2pdf,tonioo/rst2pdf,sychen/rst2pdf