Album art priority

[likescookies]

I just want to voice my support for making this configurable.

Best case for me would be for MinimServer to use folder.jpg if present when browsing albums to decide which one to play, since the point of having a folder.jpg is to represent the whole. Then when playing an individual track, use embedded art when present, falling back on folder.jpg when not.

The point of standards is to keep from having to accommodate everybody's personal use case, but then again the fun of MinimServer is its configurability. Either way, thanks for the great tool.