1.0: Released Aug. 1995.
1.1: Released Sept. 1995.
        Fixed bug that prevented dragons from being tricked into entering
        open castles.
1.2: Released Sept. 1995.
        Took Warren Robinett room out of game 1.
1.3: Released Sept. 1995.
        Allowed bridge to let player pass through dragons.
1.4: Released Sept. 1995.
        Fixed some minor bugs.
1.5: Released Oct. 1995.
        Better-looking dot;  better joystick detection.
