Version 8: Planned for 2008 GTK+2.0 port

other stuff to do
    1. The calculator portion does not work for big numbers, i.e. where
      one can type in math operations and see the abacus perform.
      Also abacus base should not have to equal display base for
      automatic calculations.
    2. When displayBase != base calculate with strings instead of
      "long long".  I.e. the number of rails can be large if displayBase =
      base but may error out if this is not true for large number of rails.
    3. Also allow for locale to allow "," for "." and vice versa.
    4. Redesign so that bead gets kicked over across rail or slot so that
      the gap between the beads is not necessary.
    5. Turning anomaly option on and off, the value should remain constant
      and the beads should change where necessary.  Allow automatic
      calculations with anomalies.
    6. Should be a way of turning off Lee formated abacus without
      recompiling.