#16 Beeping

[Farz]

In the simulator, when the program says beep() or
tone(float,float), the output flashes red.

Some people want different tones for different errors,
or even a song playing, and if the simulator had an
option (default=off) to allow the beeps to actually
play, it would be very useful for when you're not
looking at the screen the moment the error/beep/tone
occurs.