root/pypi: links for happycowler

root/pypi happycowler-0.2.4.tar.gz
root/pypi happycowler-0.2.3.tar.gz
root/pypi happycowler-0.2.2.tar.gz
root/pypi happycowler-0.2.1.tar.gz
root/pypi happycowler-0.2.tar.gz