CMUCL snapshot 2010-08 and 20b prerelease 1

[Raymond Toy]

 It's the beginning of another month, and the monthly snapshot has been
tagged.  However, no official snapshot (tagged snapshot-2010-08) is
going to be made this month.  Instead, this will be the 20b prerelease,
tagged release-20b-pre1.

We refer you to the release-20b release notes (which will be on the
website soon).  The key changes are support for localization, faster
external formats, static arrays, and the inclusion of asdf2 and
mk:defsys.  A fair number of bugs have also been fixed, including
executable images.

If there are no show-stopper bugs, the 20b release is scheduled for Sept
1 or so.  The only outstanding issue I'm aware of is that FreeBSD no
longer has executable image support.  Recent changes in the
implementation should make it much easier to support (and, indeed,
Solaris and Darwin now support executable images), but someont with a
FreeBSD machine will have to step up and do the necessary debugging.  It
shouldn't be hard.

Binaries will be uploaded soon.

Ray