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Version History:

 1.2 2004-05-15 split off calcPreferredSize into its own
                class

 1.3 2004-05-23 Put all logic about calculating panel and
                frame size in PreferredSize None left to JDisplay macro. no bar
                parameter. Computed automatically. manual control of when ScrollBars
                used.

 1.4 2004-05-29 Flip back from Swing to AWT so that Ctrl-C
                Ctrl-V will work. Even with AWT, I need a TextArea, not the
                PrettyCanvas. Downside mainly was losing ability to turn or horizontal
                and vertical scrollbars automatically. Adjust for fact scrollbars are
                all or nothing. Can't have just vertical. Redo all tokenizers with
                lookaheaad, and explicit handled boolean. Eliminate the enter method
                on all tokenizers. Explicit list of all choices on default for
                proofreading. Eliminate flicker with removal of super.paint(). \ in
                bat now show in special font.

 1.5 2004-06-01 slightly larger margins, use new
                BatTokenizer, HTMLTokenizer, JavaTokenizer

 1.6 2004-07-16 better recovery when cannot read *.ser
                file.

 1.7 2005-06-12 destroy, make sure not null before remove.
                Futures implement my own copy/paste that works with Swing or AWT token
                needs to remember where it is on screen.

 1.8 2005-07-28 major overhaul to use new tokenizers..

 1.9 2005-09-07 allow JDisplay to run under Eclipse

 2.0 2005-11-11 make snippet/ optional in Applet url
                parameter.

 2.1 2005-12-25 add parser for *.properties files

 2.2 2005-12-25 add parser for *.csv files

 2.3 2005-12-25 add parser for *.ini files

 2.4 2005-12-25 more robust error handling

 2.5 2006-01-27 prints vm version, more checks.

 2.6 2006-03-06 reformat with IntelliJ and add Javadoc

 2.7 2007-04-29 use a corresponding mono font when turn off colour.

 2.8 2007-05-05 add iformat rendering, use of snippet/ser and snippet/iformat

 2.9 2007-07-12 first public distribution.

 3.0 2007-07-26 add support for annotations.

 3.1 2007-08-20 new colour scheme.

 3.2 2007-09-17 rename snippets -> snippet. Label *.java and *.javafrag properly.

 3.3 2008-01-11 add support for hex and octal numerics.

 3.4 2008-02-23 bold variable definitions. more robust display of class on dump.

 3.5 2008-02-24 change sizes and spacing

 3.6 2008-03-06 convert to Swing

 3.7 2008-04-18 get JDisplay and CSS font renderings in closer sync

 3.8 2008-04-30 improve way numeric literals are rendered in Java.

 3.9 2008-08-08 add vanilla text parser for text files. No changes needed to JDisplay itself, just the bundle.

 4.0 2009-04-12 shorter style names, improved highlighting.

 4.1 2009-08-30 tone down colour for keywords.

 4.2 2009-09-30 fine tune size of fonts, adjusting large or small fonts to normal size, shrink keyword size.

 4.3 2010-02-08 highlight begin and ends of comments and CDATAs specially.

 4.4 2010-02-10 add manifest tokenizer.

 4.5 2011-02-03 tidy up code, fix bug stopping B&W version from scrolling.

 4.6 2014-04-17 must be signed. Reads files and sets LAF.

 4.7 2014-08-01 change *.html to *.htm, *.adler to *.checksum, use 64bit FNV1a64 checksums.

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