DIY Raspberry Pi MP3-player

Wow! unexpected: People actually think my code is impressive enough to comment on! ^_^ Somebody that send feedback about the fact that the library is pretty well written but the default volume (60%) is too low for their taste. While I can't judge their setup from here, he raised an interesting point: The current default volume is hardcoded in the library. So today I took a moment to fix that: Moved the default volume to the settings file.