generate new rows of bricks every 10 seconds.
add support for additional devices to environment.
back to 800 width canvas
put assocs in their own class so they can have methods
pass messages between assocs
preview panel.
proper preview system via message passing, and display the level.
game over if the blocks go too far down
hide bricks that get beneath the separator line.
draw separator line after white background so the power bar appears properly.
toggle button type
debug device (though really it's just a passthrough mechanism)
make panel sending of new bricks to breakout use update instead of setTimeout so it doesn't bypass the pause system.