problem in gsl_sf_bessel_Jn

[Brian Gough]

Arvid Requate writes:
 > there seem to be problems within gsl_sf_bessel_Jn and gsl_sf_bessel_Jn_array:
 >  - for n<168 they do not return exactly the same results.
 >  - for n=168 only gsl_sf_bessel_Jn returns successfull
 >  - for n>168 both routines return with errors (e.g. in airy.c)
 > 
 > some example code (c++) is attached.

Thanks for the bug report. We'll look into it