root/pypi: links for nbexec

root/pypi nbexec-0.2.0.tar.gz
root/pypi nbexec-0.1.0.tar.gz
root/pypi nbexec-0.0.2.tar.gz
root/pypi nbexec-0.0.1.tar.gz
root/pypi nbexec-0.0.0.tar.gz