Major preparation update.  Updated toString() and preparing for advanced AI of Bike.  Added TronUtil to handle general tasks (mainly for post game operations). Updated Driver to account for these changes.  Artificial Intelligence: Plan to add 3 levels of increasing smartness: A,B,C.  LevelA was previously referred to as TheBrain.  LevelB and LevelC are to be updated in the next few commits.  Difficulty will be based on how far ahead the Bike looks.  A will look one ahead. B will look two ahead.  C will look three ahead.