Display adjusts to two decimal places
Display adjusts to two decimal places

        - When a car takes more than 10 seconds to come down the track,
          it will now display just 2 decimals.
        - When a car takes 100 seconds or over, then only the first two
          digits are displayed.
        - Removed commented out code from piwoodSensorAndLightTest.py

Sam-Gram/PiWood-Derby,Sam-Gram/PiWood-Derby