Integrate a patch from http://reuter.mit.edu/index.php/software/arpackpatch/
which fixes ARPACK++ 1.2 to work with g++ 4.0.2 and above.
Submitted by: "Reed A. Cartwright" <email@example.com>
Patch by: stefan
Add arpack++, an object-oriented version of the ARPACK package.
It's just a collection of class templates, because templates are
defined in header (.h) files
Submitted by: Thierry Thomas <firstname.lastname@example.org>