root/pypi: links for pygps

root/pypi pyGPs-1.3.5.tar.gz
root/pypi pyGPs-1.3.4.tar.gz
root/pypi pyGPs-1.3.3.tar.gz
root/pypi pyGPs-1.3.2.tar.gz
root/pypi pyGPs-1.3.1.tar.gz