~tile/xtile/exper

Contains the experiment module, which controls how the system is
invoked, and sets of experiments specified, and results recorded.  The
main module in the sense of being the module that the user runs
directly, and that calls all the other modules.  However, in other
ways, it's on the same level as the agent and world modules - they are
all high-level modules of the user interface; they all call the
low-level "ui" module.
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exper-dialog.lisp	Defines the specification of the experiment
				module's dialog-box, including "callbacks"
				for the various buttons.  Defines the
				primary function for updating the
				experiment-control dialog box.
exper-save.lisp		Defines the exper-save function, which saves
				a lisp-code specification of the current
				parameters, onto the end of a file.
exper-ui.lisp		Once upon a time, it did a simple experiment
				dialog box, but now doesn't do much
				but pass the work along to
				exper-dialog.lisp.
exper.lisp		In a way, the "main" program of the whole system.
				Defines run, and the functions for starting
				and stopping games, sets, and matches,
				and the primary work procedure for the
				simulation.
logging.lisp		Functions for logging the parameters, scores,
				and average score for a set of games.
save-history.lisp	"Functions for recording the history of an
				experiment" from the old version.
				With a few things added by me (mpf).
