root/pypi: links for li-traceroute

root/pypi li-traceroute-1.6.tar.gz
root/pypi li-traceroute-1.5.tar.gz
root/pypi li-traceroute-1.3.tar.gz
root/pypi li-traceroute-1.2.tar.gz
root/pypi li-traceroute-1.1.tar.gz