[slime-devel] Update to swank-asdf

[Faré]

Dear SLIME developers,

here's my latest update to swank-asdf.
Most important: with-compilation-hooks.
Also better support for ASDF 2.27, and
optional upgrade at startup (which I think should be the default,
but I'm not gonna fight over it).

It works for me at least on SBCL.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
If you give someone Fortran, he has Fortran.
If you give someone Lisp, he has any language he pleases.
        — Guy L. Steele Jr.