TODO: * realize when done playing * use playlist * pause * get rid of directory limit DONE: * make back button work * call mpg123 with -q flag * write readme * have play continue to next directory when done with current * display filename * scrolling - once first time - any time they click in the box (once) * make buttons depress * allow user to change directory * repeat * -v,--version * -h, --help * when not playing, clicking in title puts depressed stop button there * get rid of song limit (do it dynamically) * fix previous bug * random