revised librand now on ftp.research.att.com site

Sorry for the noise, but I just discovered that the librand.shar file that I put in my ftp directory got garbled somewhere along the line. I've repaired the damage and put a correct version of the file in: ftp://ftp.research.att.com/dist/mab/librand.shar (Worst of all, the garbled version actually compiled, but you can tell you have it by its failure to link properly). Again sorry for the noise. -matt