Finished up the rest of the Apple Music Controller implementation, implementing an initial isReady (we'll probably need to add more to it later), getPlayerState, and getQueue. Web-based Apple Music doesn't have a like/dislike option, so these are just no-op.
Made a couple updates to the message relay to make it a bit more specific/cleaner.
Changed intentional production console messages to console.info so we can easily search for debug console.log statements.
Overview
isReady(we'll probably need to add more to it later),getPlayerState, andgetQueue. Web-based Apple Music doesn't have a like/dislike option, so these are just no-op.