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Version History:

 1.0 1999-08-17

 1.1 1999-08-17

 1.2 1999-08-17 not enough and too few digits messages.
                catch NumberFormatException when too big to fit in long.\

 1.3 1999-08-19 ignore dashes in numbers

 1.4 2005-06-17 stomped BAT files, added about box, cleaner GridBag

 1.5 2005-12-16 add Javadoc

 1.6 2006-03-04 reformat with IntelliJ, add Javadoc

 1.7 2007-05-17 add pad and icon.

 1.8 2008-03-06 convert to jdk 1.5. add build number to title. simplify with enum.

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