[Bug-gsl] fundamental constants

[Marco Prevedelli]

Hi,

fundamental constants in gsl are a bit outdated.

Compare the  allascii.txt file with 
http://physics.nist.gov/cuu/Constants/Table/allascii.txt .

The newtonian gravitational constant is particularly neglected: In 
gsl_const_mksa.h
you can find

#define GSL_CONST_MKSA_GRAVITATIONAL_CONSTANT (6.673e-11) /* m^3 / kg s^2 */

but the current value is 6.67384e-11 and the value in allascii.txt in 
the trunk repository is 6.67428 e-11

Best Regards,
M. Prevedelli