CHANGES WITH 236:

• Building python-systemd has been modernized and the project now uses pyproject.toml instead of setup.py. Meson has been adopted as the project's build system.

  Note to packagers: meson-python is now a build dependency of python-systemd.

• The running of tests and building documentation has been integrated with meson.

  Tests can be run as

  meson test -C build
  

  and the documentation can be built with

  meson compile -C build html
  

• Support for Python 2 as well as Python 3.7 and 3.8 has been dropped.

• Various build warnings have been addressed and a fresh build should be clean now.

• All files use SPDX license headers now.

Contributions from: Eric T. Johnson, Frantisek Sumsal, Guiorgy, Jelle van der Waa, Jörg Behrmann, Nguyễn Hồng Quân, Zbigniew Jędrzejewski-Szmek