Make any Google Music playlist into a power hour!
Simple script for turning any Google Music playlist into a "Power Hour". For those who don't know, that's where you listen to 60 songs for one minute each, and drink a shot of beer whenever the song changes.
For now, you have to pop open the console and call startPowerHour() to start it (and stopPowerHour() to stop). I might inject a button that does this in the future.
