Backport a Docker user configuration change from 9.1

Signed-off-by: Michael Herger <[email protected]>

Changelog9.html

@@ -15,6 +15,7 @@ <h2><a name="v9.0.2" id="v9.0.2"></a>Version 9.0.2</h2>
 	<li>Platform Support:</li>
 	<ul>
 		<li>Improve Windows installer to give better feedback on service start failure.</li>
+		<li><a href="https://github.com/LMS-Community/slimserver-platforms/pull/85">#85</a> - Change permissions of user running LMS in Docker. Use "squeezeboxserver" group instead of "nogroup" (thanks @osnieh!)</li>
 	</ul>
 	<br />