Version 1.50 (released November 21st 1993)
        - fixed bug that caused program to quit, without calculating
          IQ, when time expired.
        - added safety features that allowed users to return to the
          test if they accidentally clicked the EXIT or FINISHED buttons.

Version 1.20 (released November 1st 1993)
        - fixed bug that incorrectly computed IQ's in lower ranges.

Version 1.00 (released October 27th 1993)

Version 0.99 (Beta version, released October 20th 1993)