* bug fix: stray FD-HANDLERs are no longer left lying around after unwinds
from RUN-PROGRAM. (lp#840190, reported by Dominic Pearson; fix from Max
Mikhanosha)
+ * bug fix: redefining classes such that slots with custom allocation are
+ added or removed works again.
changes in sbcl-1.0.51 relative to sbcl-1.0.50:
* minor incompatible change: SB-BSD-SOCKET socket streams no longer