1.0:	Fix for big endian machines.
	Performancetuning.

1.2:	Fixed a bug in the padding routine.
	Different sum routines, so Perl 5.6.0
	works now.
	Using 'use integer'.
	
1.3:	Patch for the object interface from Gisle Aas.
	The module works as a fallback for Digest::MD5 now.
	Replaced 'use constant' with inline functions.