[slime-devel] Package split

[Helmut Eller]

I just merged my package-split branch into the main trunk.  We have
now a new package SWANK-BACKEND.  It is basically stand-alone and
doesn't need the rest of SWANK.  Of course, SWANK calls functions in
the backend.  I moved some functionality like handling of restarts and
a lot symbol-to-string conversion to swank.lisp.  The load order is
now:
  
 swank-loader, swank-backend, swank-[cmucl,sbcl...], swank

This means, we could define macros in the backend and use them in
SWANK.

I tested a bit with my usual implementations.  I added the necessary
changes for OpenMCL, but don't know if they actually work. Feedback
welcome.

Helmut.