Playerdo

------------------------

* Dropped support for Python < 3.8
* Dropped support for MPRIS 1
* Reorganised structure into more standard layout, including using console_scripts entry point
* Dropped ``help`` command in favour of ``--help``
* Overhauled the way active/inactive/broken backends/players are shown in help
* Added ``-p`` / ``--player`` option for selecting the player.

------------------------
* Dropped Python 2 support
* Fixed some Python 3 issues

------------------------

* Support for pianobar
* Support for MPD.
* Better support for Cinnamon
* Fixed support for cmus

-----------

* New 'install_cinnamon' command to properly support Cinnamon 2.0 and higher.
* Fixed some Python 3 compatibility issues, dropped support for Python < 2.7

-----------

* new command 'is_playing'.
* shell-fm support now requires version 0.8

-----------

* Added support for installing shortcuts in Mate and GNOME3/Cinnamon