Overlap

* Maintenance release supporting proper versioning (63)
* Update of third-party dependencies to newer releases supporting recent versions of Python (60)
* Fix build issue with recent `packaging` library (59). Thanks [kalekundert (Kale Kundert)](https://github.com/kalekundert).

This will be the last release prior to a significant restructuring/modernization of the library, except for potential bug fixes.

New features
* Python bindings 19

Improvements
* Documentation
* Additional test cases
* Inclusion of third-party dependencies as git sub-modules