tidbyts now play in popup, albeit using a final attribute (not sure if
that's a bad idea). Also, added a stopPlaying(po) method for when a user
wants to stop playing tidbyts halfway through. Right now it's set to
when the user closes the popup. Not sure how I feel about that. I think
it would be cool to have users exploring other tidbyts while one plays.
But there are other implications. Let's talk about it.