[CM] fixes fixes fixes

[Fernando Pablo Lopez-Lezcano]

> > Ive made lots of fixes to both the book and the sources. cm-2.4.0 
> > w/chapter material from ch. 9-22 has been tested in the following 
> > lisp's:
> 
> cm::set-cm-host-dir is no longer there. What has it been replaced with?

Apparently replaced by (logical-pathname-translations "cm")... Seems to
work (in very limited tests - anything I should be aware of, Rick?). 

-- Fernando