root/pypi: links for birdback

root/pypi birdback-0.2.tar.gz
root/pypi birdback-0.1.tar.gz
root/pypi birdback-0.1b5.tar.gz
root/pypi birdback-0.1b4.tar.gz
root/pypi birdback-0.1b3.tar.gz
root/pypi birdback-0.1b2.tar.gz