root/pypi: links for siphash-cffi

root/pypi siphash-cffi-0.1.4.zip
root/pypi siphash-cffi-0.1.3.zip
root/pypi siphash-cffi-0.1.2.zip
root/pypi siphash-cffi-0.1.1.zip
root/pypi siphash-cffi-0.1.0.zip