Scrapbook of feature changes and additions

FYI, a while back I had created this page:

http://musescore.org/en/developers-handbook/scrapbook

The idea was to allow developers to give nightly build users a "heads up" on new stuff as it became ready to try out, to serve as a checklist of things needing "real" documentation, and perhaps even serve as a first rough draft of that documentation. There's a lot of stuff not in it, but a bit that is, and I think it's fair game for the rest of us to pitch in too.