root/pypi: links for centroid

root/pypi centroid-1.2.1.tar.gz
root/pypi centroid-1.2.0.tar.gz
root/pypi centroid-1.1.0.tar.gz
root/pypi centroid-1.1.0-alpha3.tar.gz
root/pypi centroid-1.1.0-alpha2.tar.gz
root/pypi centroid-1.1.0-alpha1.tar.gz
root/pypi centroid-1.0.0.tar.gz