root/pypi: links for pretex

root/pypi preTeX-0.5.3.zip
root/pypi preTeX-0.5.2.zip
root/pypi preTeX-0.5.1.zip
root/pypi preTeX-0.5.0.zip
root/pypi preTeX-0.4.1.zip
root/pypi preTeX-0.4.0.zip
root/pypi preTeX-0.3.0.zip
root/pypi preTeX-0.2.0.zip
root/pypi preTeX-0.1.1.zip
root/pypi preTeX-0.1.0.zip