###########################
  #
  # MTTTP    Mindless Tic Tac Toe Protocol
  #          v1.0, 1/11/02, Jim Mahoney
  #
  # The server waits for single line commands from client, 
  # Each command is identified by initial keyword.
  # 
  # The server responsds to each command with 4 lines of text.
  # Lines are terminated by unix \n.
  # Whitespace is ignored.
  # 
  # The legal commands that the client can issue are
  #    START [x|o]
  #    MOVE where
  #    DONE
  #
  # The tic tac toe board is laid out like this.
  #      a  b  c
  #      d  e  f
  #      g  h  i
  # so the legal values of "where" are one of the first nine letters.
  # Each spot is either X, O, or . (period for empty space).
  # X goes first.
  #
  # Commands and positions may be in either upper or lower case.
  #
  # The server always responds with 4 lines, 
  #   1 line of information,  followed by 
  #   3 lines displaying the board.
  #
  # The information line starts with either "OK" or "OOPS", and may
  # contain key/value pairs in the form key='value'.  Defined keys are
  #   your_mark     O or X ,  confirming which side the client will play,
  #   your_move     a letter, confirming a move the client has played,
  #   my_move       a letter, giving the move that the server has made.
  # The OOPS condition is returned when
  #   the client command is not understood, or
  #   the client sends an illegal move 
  # 
  # The server algorithm is (of course) up to the implementer - 
  # depending on how mindless you'd like to be.
  #
  # The client may issue any of the three commands at any point.
  # 
  #############################################################