[CM] "; There is no class named RANDOM."

[Russell Johnston]

The name of the pattern class "random" has been changed to "weighting"
as of CM 2.8.0 (i.e. after 'Notes' was published).

> In chapter 20, when I try to evaluate the lines
> "
> (new heap :of  (list (new cycle :of 'q :for 3)
>                (new palindrome :of '(e. s e))
>                (new random :of '(h w h.) :for 1)))
> "
> I get:
>
> "
> There is no class named RANDOM.