central location for version number: pypolibox.__version__
added basic sphinx documentation setup
sphinx imports version from pypolibox.__version__; setup.py can't do that
included readme and news in sphinx documentation
sphinx: fixed pypolibox.rst
added napoleon (sphinx numpydoc handling) to dependencies
added modules to index.rst
tested conversion to numpydoc
added history and readme rst files to doc
bumped version to 1.0.1; added NEWS section
added todo to index.rst and updated it
updated gitignore
updated documentation hints in readme (epydoc->sphinx)
removed unused path in sphinx config