Optimizing generate-audio-track.sh, still untested.
Adding convert-to-png2x.sh.
Adding sample game game.blo. It has many interesting elements.
Placing the frame in the middle of the screen.
Forcing a delay at level start, both in real-time play mode and in playback.
Adding buzzer.au.
Playing buzzer.au during playback, when AddedLayersEvent is going to happen soon.
Changing FPS from 200 to 100 in recorded video footage.
Adding LevelPlaybackRecorder. Untested.
Implementing getSnapshot() on three classes.
