Log Message:
Update from version 0.43nb3 to version 0.45.

Upstream changes:
Version 0.44:
	Optimize thaw; apparently, with 5.8.8 \G in REx is not optimized;
	  so implement along lines suggested by Bram [wizbit] (about 5x speedup
          in some test cases).
Version 0.45:
	Maxpointer decimal width was wrongly calculated on 64bit machines with
	  narrow NVs.