root/pypi: links for collective-psc-mirroring

root/pypi collective.psc.mirroring-0.1.4.zip
root/pypi collective.psc.mirroring-0.1.3.zip
root/pypi collective.psc.mirroring-0.1.2.zip
root/pypi collective.psc.mirroring-0.1.0.tar.gz