Reworking pathnames for abcl-1.8.0 (was: Bug report: Loading a FASL into a package which doesn't import SETQ)

I will try to address for abcl-1.8.0 as part of reworking pathnames for the fasl loader itself.

Thanks for the report!

You're welcome! I've recently encountered a few other bits of weirdness that I think might be caused by ABCL pathname bugs; I'll try to get them isolated and reported quickly.