root/pypi: links for slingrpm

root/pypi slingrpm-1.0.0b3.tar.gz
root/pypi slingrpm-1.0.0b2.tar.gz
root/pypi slingrpm-1.0.0b1.tar.gz
root/pypi slingrpm-1.0.0a2.tar.gz
root/pypi slingrpm-1.0.0a1.tar.gz