michaelg/dev: links for sonic-engine

root/pypi sonic_engine-2.1.15.tar.gz
root/pypi sonic_engine-2.1.14.tar.gz
root/pypi sonic_engine-2.1.13.tar.gz
root/pypi sonic_engine-2.1.12.tar.gz
root/pypi sonic_engine-2.1.11.tar.gz
root/pypi sonic_engine-2.1.10.tar.gz