root/pypi: links for stern

root/pypi stern-2.0.tar.gz
root/pypi stern-1.9.tar.gz
root/pypi stern-1.8.tar.gz
root/pypi stern-1.7.tar.gz
root/pypi stern-1.5.tar.gz
root/pypi stern-1.4.tar.gz
root/pypi stern-1.3.tar.gz
root/pypi stern-1.2.tar.gz
root/pypi stern-1.1.tar.gz
root/pypi stern-1.0.tar.gz