root/pypi: links for u2fval

root/pypi u2fval-2.0.0.tar.gz
root/pypi u2fval-1.0.1.tar.gz
root/pypi u2fval-1.0.0.tar.gz
root/pypi u2fval-0.9.1.tar.gz
root/pypi u2fval-0.9.0.tar.gz