[CM] clm-random error and "double-float"

[Rick Taube]

> There must be a way to make CLM's use of random compatible with CM's,
> but I haven't taken time to look into it (I'm trying to get Snd 7.18 
> out the door).


Im sorry, i simply dropped the ball!  i do rememebr i was going to 
rename the random  and funcall pattern to names that do not conflit 
with CLTL. i think i narrowed new candiate names down to these:

1 change 'funcall' to 'thunk' :

     (new thunk :of (lambda () ...)

2 change 'random' to 'weighting' :

	(new weighting :of  '( a b (c :weight 3) d e))


does anyone object to these new names (or have better candiates)?  if 
not ill rename them in the next few days.