root/pypi: links for pstools

root/pypi pstools-0.5.1.1.tar.gz
root/pypi pstools-0.5.1.1-py2.py3-none-any.whl
root/pypi pstools-0.0.1.1.tar.gz
root/pypi pstools-0.0.1.1-py2.py3-none-any.whl