root/pypi: links for blockdiagcontrib-class

root/pypi blockdiagcontrib-class-0.1.3.tar.gz
root/pypi blockdiagcontrib-class-0.1.2.tar.gz
root/pypi blockdiagcontrib-class-0.1.1.tar.gz
root/pypi blockdiagcontrib-class-0.1.0.tar.gz