root/pypi: links for aiida-castep

root/pypi aiida-castep-0.3.1.tar.gz
root/pypi aiida_castep-0.3.1-py2-none-any.whl
root/pypi aiida-castep-0.3.0.tar.gz
root/pypi aiida_castep-0.3.0-py2-none-any.whl