Comment 11 for bug 1372000

There are test packages for this in silo 40 if anyone wants to give them a try:

https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/landing-040

Things seem to work okay in my own testing (checking My Music scope and music-app). This is based on Jussi's earlier branch, with support extended to album art rather than just song art, and a small lookup cache added (i.e. so if you ask for art for every song in an album, it won't do the full directory scan each time).