latest librand source now available

Souce code for the latest version of librand (a random
number package based on event interval variations) for
Unix-like machines is now available in:
  ftp://ftp.research.att.com/dist/mab/librand.shar

There are no restictions on use or distribution of this
code, which was written by Matt Blaze, Jack Lacy, and
Don Mitchell.

-matt