fix UniformComovingVolume

tupak/gw/prior_files/binary_black_holes.prior

@@ -15,7 +15,7 @@ cos_tilt_1 =  Uniform(name='cos_tilt_1', minimum=-1, maximum=1)
 cos_tilt_2 =  Uniform(name='cos_tilt_2', minimum=-1, maximum=1)
 phi_12 =  Uniform(name='phi_12', minimum=0, maximum=2 * np.pi)
 phi_jl =  Uniform(name='phi_jl', minimum=0, maximum=2 * np.pi)
-luminosity_distance =  UniformComovingVolume(name='luminosity_distance', minimum=1e2, maximum=5e3)
+luminosity_distance =  tupak.gw.prior.UniformComovingVolume(name='luminosity_distance', minimum=1e2, maximum=5e3)
 dec =  Cosine(name='dec')
 ra =  Uniform(name='ra', minimum=0, maximum=2 * np.pi)
 iota =  Sine(name='iota')