GNOME UI (src/gnome):

*	Fix the disfunctional g_set_progname() calls in gnomeui.c

*	Fix the command history not saving bug.


Text UI (src/console):

*	Allow the user to specify the prompt and error colours (perhaps
	via environment variables).


Expr UI (to be src/expr):

*	Write it =)


Engine (src/engine):

*	Rewrite the parser using flex.

*	Rewrite the engine in Scheme.


Wishlist for the new engine:

*	parallel resistors function, nPr, nCr, various
	bitwise operators.

*	Other bases (binary,octal,hex,[arbitary?])

*	More constants? Constants -> read-only variables

*	Implement tab completion (ie fill in the two functions at the top of
	readline.c)


Miscellanea:

*	Convert the docs to docbook

*	Handle two rcalc's running more nicely (presently the last one to
	close will overwrite any variables saved by the first one).

*	Obtain an icon from somewhere (any artists out there?)
