smart_traffic - Added concept of Driver's minBufferInSecs and use those for brakeOrGas()
smart_traffic - Added concept of Driver's minBufferInSecs and use those for brakeOrGas()

minBufferInSecs ... is a measure of time that the Driver wants between them and the car ahead (could be dynamically adjusted for speed)

minimumSpacing ... is the calculated distance based on the current speed of the car

Note: This results in some cycles of rapid thrashing of accel / braking.

brianhonohan/sketchbook,brianhonohan/sketchbook,brianhonohan/sketchbook