Prov

^^^^^^^^^^^^^^^^^^
* Removed support for EOL Python 2
* Testing against Python 3.6+ and Pypy3

^^^^^^^^^^^^^^^^^^
* Reorganised source code to /src
* Added Python 3.7 support
* Removed Python 3.3 support due to end-of-life
* plus minor improvements and bug fixes

^^^^^^^^^^^^^^^^^^
* Fixed association relation in RDF serialisation
* Fixed compatibility with networkx 2.0+

^^^^^^^^^^^^^^^^^^
* Replaced pydotplus with pydot (see 111)
* Fixed datetime and bundle error in RDF serialisation
* Tested against Python 3.6
* Improved documentation

^^^^^^^^^^^^^^^^^^
* Added: Support for `PROV-O <http://www.w3.org/TR/prov-o/>`_ (RDF) serialization and deserialization
* Added: `direction` option for :py:meth:`prov.dot.prov_to_dot`
* Added: :py:meth:`prov.graph.graph_to_prov` to convert a `MultiDiGraph <https://networkx.readthedocs.io/en/stable/reference/classes.multigraph.html>`_ back to a :py:class:`~prov.model.ProvDocument`
* Testing with Python 3.5
* Various minor bug fixes and improvements

^^^^^^^^^^^^^^^^^^
* Changed the type of qualified names to prov:QUALIFIED_NAME (fixed 68)
* Removed XSDQName class and stopped supporting parsing xsd:QName as qualified names
* Replaced pydot dependency with pydotplus
* Removed support for Python 2.6
* Various minor bug fixes and improvements