Included Eric Anger in the list of authors

Eric contributed the cache-modeling code.  While not yet publicly
documented -- Eric is still verifying the model -- the code is
nevertheless in the repository and is technically usable.
Corrected the way the build script runs Byfl

Updated the build script to locate the Perl installation directory via
wrappers.mak's echo-INSTALLSITELIB target rather than the recently
removed pm-loc target.