-------------------
- Initial implementation containing the following functionality:
- :func:`algorithms.select_content_type`
- :class:`datastructures.ContentType`
- :class:`errors.NoMatch`
- :class:`errors.RootException`
- :func:`headers.parse_content_type`
- :func:`headers.parse_http_accept_header`
.. _Accept-Charset: https://tools.ietf.org/html/rfc7231#section-5.3.3
.. _Accept-Encoding: https://tools.ietf.org/html/rfc7231#section-5.3.4
.. _Accept-Language: https://tools.ietf.org/html/rfc7231#section-5.3.5
.. _Cache-Control: https://tools.ietf.org/html/rfc7231#section-5.2
.. _Link: https://tools.ietf.org/html/rfc5988