🚀 go-pugleaf

If you would like to beta-test xboard 3.0, please send me mail.
Please say what type of machine and what operating version you have.
I don't believe there are many bugs to be found, but there may be new
portability problems, so I'm interested in testing on a variety of
different systems before release.

Also send mail if you have Windows NT and would like to test WinBoard,
which is a port of xboard to Windows NT.  Before you ask, WinBoard
does NOT run on Windows 3.1 at this time, only on NT.

	--Tim

Here are highlights from the change log:

- User interface has a new look: (1) Menu bar instead of array of
buttons.  A few very commonly used features have small buttons in
addition to being on the menus. (2) Large font for clock.  (3) Pop-up
dialogs for errors.

- Added a popup dialog to enter and edit comments.  Inspired by some
code from Patrick Surry.  Changed the normal read-only comment popup
to the same style.

- Added menu commands to control autoflag, autosave, bell, and coords
options.

- Added Load Next Game, Load Previous Game, and Reload Same Game to
File menu.  Reload Same Game suggested by Patrick Surry.

- Added ICS init script feature from Karl Schwamb.

- Added -flipView command-line option.  Suggested by Patrick Surry.

- Boolean command line options now use "-foo" to turn on and "--foo"
to turn off instead of "-foo true" and "-foo false".  

- Source code is split into front end (xboard.c), which knows about X
and Unix, and back end (backend.c), which knows about chess, gnuchess,
and the ICS.  There is also a front end for Windows NT.

- Revamped code to allow use of flex instead of lex on parser.l.
Using flex requires adding -DFLEX to defines in Imakefile.