R port of the 2002 version of MCLUST, by Fraley and Raftery
(Dept. of Statistics, University of Washington) by Ron Wehrens.

Note that this version differs considerably from the older version.

The Splus functionality, as described in
the technical report (contained in directory inst/doc/tr415.pdf) is
fully present. Implementation of some functions is slightly different
(notably density and clpairs).
