root/pypi: links for zc-relation

root/pypi zc_relation-2.1.tar.gz
root/pypi zc.relation-2.1-py3-none-any.whl
root/pypi zc.relation-2.0.tar.gz
root/pypi zc.relation-2.0-py3-none-any.whl
root/pypi zc.relation-1.2.tar.gz
root/pypi zc.relation-1.1.post2.tar.gz
root/pypi zc.relation-1.1.post2-py2.py3-none-any.whl
root/pypi zc.relation-1.1.post1.tar.gz
root/pypi zc.relation-1.1.tar.gz
root/pypi zc.relation-1.0.tar.gz