root/pypi: links for package-builder

root/pypi package_builder-0.1.9.tar.gz
root/pypi package_builder-0.1.8.tar.gz
root/pypi package_builder-0.1.7.tar.gz
root/pypi package_builder-0.1.6.tar.gz
root/pypi package_builder-0.1.5.tar.gz
root/pypi package_builder-0.1.4.tar.gz