Added jcf_spherical_lib.f90, now jcf_sphere_lib is just a wrapper.
Fixed argument of get_length() wrapper.
Added some document about difference b/w get_intersection_point() and  is_cross_line().
Fixed bug in is_in_lonlat().
Removed unnecessary line forgot to erase.
Increase testcase in input_{latlon2xyz,xyz2latlon}.txt.
Added automated test execution script.
Oops, forgot to return result in is_cross_line().
Merge pull request #10 from Jcuplib/upgrade_jcf_sphere_lib

Upgrade jcf_sphere_lib