root/pypi: links for nifty4nifs

root/pypi Nifty4NIFS-1.0b5-py2-none-any.whl
root/pypi Nifty4NIFS-1.0b4-py2-none-any.whl
root/pypi Nifty4NIFS-1.0b2-py2-none-any.whl
root/pypi Nifty4NIFS-1.0b1-py2-none-any.whl
root/pypi Nifty4NIFS-1.0a1-py2-none-any.whl