Tweaked the scaling values of noise8/16 to better line up with the real range of values (found via doing 4 billion runs over each on my laptop).  Also added better gradient functions for 1d and 2d noise (though i'm not happy with the 1d distribution, yet).  Finally, added raw versions of the noise functions to give back the unadjusted, unscaled, roughly -0.6,0.6 range of values.