Main contributors:

Thomas Jahns <jahns@dkrz.de>
Joerg Behrens <behrens@dkrz.de>
Florian Wilhelm <Florian.Wilhelm@kit.edu>

Auxiliary Code:

m4/float_precision.m4 and xpfpa.h by Christian Seiler,
	http://www.christian-seiler.de/projekte/fpmath/
