root/pypi: links for big-o

root/pypi big_O-0.11.0.tar.gz
root/pypi big_O-0.10.2.tar.gz
root/pypi big_O-0.10.1.tar.gz
root/pypi big_O-0.9.tar.gz
root/pypi big_O-0.8.1.tar.gz
root/pypi big_O-0.7.zip