root/pypi: links for oats

root/pypi OATS-0.2.5.tar.gz
root/pypi OATS-0.2.4.tar.gz
root/pypi OATS-0.2.3.tar.gz
root/pypi OATS-0.2.2.tar.gz
root/pypi OATS-0.2.1.tar.gz
root/pypi OATS-0.2.0.tar.gz