** GETF and GET-PROPERTIES throw a TYPE-ERROR, not a SIMPLE-ERROR,
on malformed property lists;
++changes in sbcl-0.8.0 relative to sbcl-0.7.14
++ * the old distinction between CL:CLASS objects and SB-PCL:CLASS
++ objects has been removed. The return value from CL:FIND-CLASS is
++ now a CLOS class, and likewise that of CL:CLASS-OF;
++ CL:BUILT-IN-CLASS, CL:STRUCTURE-CLASS and CL:STANDARD-CLASS name
++ CLOS classes.
++ * an interface to the MetaObject Protocol, as described in Kiczales,
++ des Rivieres and Bobrow's "The Art of the Metaobject Protocol",
++ MIT Press, 1991, is available from the SB-MOP package.
++ * incompatible change: the SB-PCL package should now be considered a
++ private implementation detail, and no longer a semi-private MOP
++ interface.
++
planned incompatible changes in 0.7.x:
* (not done yet, but planned:) When the profiling interface settles
down, maybe in 0.7.x, maybe later, it might impact TRACE. They both