Include rsync please

Just a suggestion to include rsync in the MusicBox image.

I used apt-get install rsync to install it for some testing but it would be nice to have it baked in :smile:

I have music on a NAS that I am using rsync and cron to copy to the local storage periodically so I have less network traffic as the music files won’t be changing that often.

Keeping the image lean for a small download size has been a goal for the project, so I think this is unlikely to happen. However, there is nothing stopping you from just logging in and installing it yourself :slight_smile: