root/pypi: links for planarity

root/pypi planarity-0.6.tar.gz
root/pypi planarity-0.5.tar.gz
root/pypi planarity-0.4.1.zip
root/pypi planarity-0.4.1.tar.gz
root/pypi planarity-0.4.zip
root/pypi planarity-0.4.tar.gz
root/pypi planarity-0.3.1.zip
root/pypi planarity-0.3.1.tar.gz
root/pypi planarity-0.3.zip
root/pypi planarity-0.3.tar.gz