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Version History:

 1.0 1999-01-08

 1.1 1999-01-10 use simple String.indexOf for short patterns and texts
                lazy evaluation of skip[] array, to avoid work of calculating it.
                more comments.
                lenPat and lenText now local variables.
                more efficient code to catch the degenerate cases of null and 0-length strings.
                unravel main loop slightly to avoid extra charAt.
                now throw NullPointerExceptions on null arguments.
                also support searches of char arrays.

 1.2 2001-08-13 by Jonathan Ellis
                added index argument to indexOf functions, to allow you to start search
                part way through the string.
                setPattern is no longer public; this cuts down on the number of overloaded fns I had to write for
                the above
                (why would anyone want to make n+1 fn calls instead of n, in the first place?)
                lenPat and lenText now instance variables again; I am anal about not duplicating code where possible

 1.3 2001-08-13 by Roedy Green
                clean up JavaDoc
                set different breakEvenLenPat and breakEvenLenText based on debugging setting.
                removed the null constructor.
                rename pat to patternArray

 1.4 2002-07-20 by David Gentzel <gentzel@pobox.com>
                fix bug in indexOfViaTextArray, was ignoring non-zero index.

 1.5 2007-05-21 add pad, icon, pass IntelliJ lint, add ANT build.xml.

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