Maintenance release 1.1.6

A maintenance release 1.1.6 was published on a newly created project site on GitHub. With this release we take care of recent changes from Python 3.8. which caused the application to stop working on newer distribution releases.

Sadly, support for Bluetooth or an Airport Express was no longer possible.

All other streaming methods such as Icecast support or support for DLNA streams were adapted to recent changes, including several bugfixes.