fix the in_range comparison.  This affects the NH3 wrapper.
fix the in_range comparison.  This affects the NH3 wrapper.

low-sky/pyspeckit,e-koch/pyspeckit,pyspeckit/pyspeckit,vlas-sokolov/pyspeckit,pyspeckit/pyspeckit,jpinedaf/pyspeckit,mikelum/pyspeckit,jpinedaf/pyspeckit,keflavich/pyspeckit,allisony/pyspeckit,mikelum/pyspeckit,keflavich/pyspeckit,low-sky/pyspeckit,e-koch/pyspeckit,vlas-sokolov/pyspeckit,allisony/pyspeckit