0.9.4.25:

0.9.4.25:
	Fix problem with GET-INTERNAL-REAL-TIME crashing for processes
        that have been running for over 49.7 days (reported by Gilbert
        Baumann on #lisp).

        * Remove the U-B 32 declarations for values that were
          suspectible to overflowing in such a short time. This
          introduces a small amount of extra overhead (<10%) for each
          call to GET-INTERNAL-(REAL|RUN)-TIME. The accuracy or
          performance of PROFILE and TIME (the only internal users of this)
          is not measurably affected by the extra overhead.
        * Remove some dead comments