Reading and writing GSL random number generators

[Brian Gough]

Olaf Lenz writes:
 > Hello!
 > Here comes the revised code. 
 > With gsl_rng_fprintf, the random number generator state is now output
 > in a hex-byte-by-hex-byte fashion (ae 0f 1e ...), the whitespace
 > separator in between can be chosen freely.

Thanks, I've created an rngfile-1-3 branch with the code on
savannah.gnu.org for testing purposes before I add it to the main
repository.

-- 
Brian