configure.in	InnoDB now uses XCHG to implement mutex if GCC and x86


innobase/configure.in:
  InnoDB now uses XCHG to implement mutex if GCC and x86
innobase/include/sync0sync.ic:
  InnoDB now uses XCHG to implement mutex if GCC and x86
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted