Existing SHA1 digests verified, all found to be the same on the
machine holding the existing distfiles (morden). Existing SHA1
digests retained for now as an audit trail.
brook at biology dot nmsu dot edu and his team at NMSU.
FLUCTUATE fits the model which has a single population which has been
growing (or shrinking) according to an exponential growth law. It
estimates 4Nu and g, where N is the effective population size, u is
the neutral mutation rate per site, and g is the growth rate of the
population.