root/pypi: links for gdcdatamodel

root/pypi gdcdatamodel-1.3.13.tar.gz
root/pypi gdcdatamodel-1.3.12.tar.gz
root/pypi gdcdatamodel-1.3.11.tar.gz
root/pypi gdcdatamodel-1.3.10.tar.gz
root/pypi gdcdatamodel-1.3.9.tar.gz
root/pypi gdcdatamodel-1.3.8.tar.gz