separate and saner epsilons for #ifdef double and #else

Signed-off-by: Stanislaw Halik <sthalik@misaki.pl>
experimental: flush denormals to zero when #ifdef rice
enable -DRICE

Signed-off-by: Stanislaw Halik <sthalik@misaki.pl>
flush denormals harder

http://gcc.gnu.org/ml/gcc/2005-08/msg00281.html

Signed-off-by: Stanislaw Halik <sthalik@misaki.pl>
ultimate solution for denormalization is long double

Signed-off-by: Stanislaw Halik <sthalik@misaki.pl>
sprinkle color info
denormals, mantissa size

Signed-off-by: Stanislaw Halik <sthalik@misaki.pl>
use double for precision