root/pypi: links for pg-37

root/pypi pg_37-1.3.1.tar.gz
root/pypi pg_37-1.3.0.tar.gz
root/pypi pg_37-1.2.0.tar.gz
root/pypi pg_37-1.1.1.tar.gz
root/pypi pg_37-1.1.0.tar.gz
root/pypi pg_37-1.0.0.tar.gz