Lispworks improvements pushed

[Robert Goldman]

The improvements that Chun Tian identified have been pushed into master
on common-lisp.net

I also pushed a test modification that disables testing ecl-make-image
on MacOS.  At the very least, it doesn't work on Macs with MacPorts
(gets confused about which compiler to use with which libraries).  This
seems like not a problem for ASDF.

I'd welcome any testing that people could do, and plan to release the
new version by the end of next week.

Best,
r