added additional allegro variants
Add test-all-no-upgrade-no-stop, tweak other targets
fixed outer case for allegro
Simplify ACL configuration using directories.
Update the usage string for Allegro lisp names.

Allegro lisp names for SMP variants in the usage string didn't agree
with the arguments in the script itself.
Bump version to 3.1.0.25
Try to debug test-program.script on CLISP, it unbreaks the test (!)
Tweak some test output.
Make the test script slightly more robust for allegro.
Punt on the final space emitted by CMD.EXE's echo on Windows.
It's not just present in buggy implementations,
it's inevitable on all implementations that rely on shell redirection.
Have softer upgrades when upgrading from a forward-compatible-enough version.
NB: insufficiently tested.
Update TODO
Push ASDF3.1 onto features.
Get ready for 3.1.1 release.
Bump version to 3.1.0.26
Add backtrace support for XCL. Unhappily, an XCL compiler bug breaks ASDF3:
The return statement in search-for-system-definition goes awry.
XCL is now officially not supported by ASDF3 (ASDF 2 might still work).
Make asdf-pathname-test more verbose in case of failures,
in the hope that it's easier to understand what's going on.
Bump version to 3.1.0.27