message: Add `Kumaraswamy` to distributions __init__.py
diff: @@ -40,6 +40,7 @@ from tensorflow.contrib.distributions.python.ops.geometric import *
  from tensorflow.contrib.distributions.python.ops.half_normal import *
  from tensorflow.contrib.distributions.python.ops.independent import *
  from tensorflow.contrib.distributions.python.ops.inverse_gamma import *
  +from tensorflow.contrib.distributions.python.ops.kumaraswamy import *
  from tensorflow.contrib.distributions.python.ops.logistic import *
  from tensorflow.contrib.distributions.python.ops.mixture import *
  from tensorflow.contrib.distributions.python.ops.mixture_same_family import *
  @@ -115,6 +116,7 @@ _allowed_symbols = [
  'Independent',
  'InverseGamma',
  'InverseGammaWithSoftplusConcentrationRate',
  + 'Kumaraswamy',
  'Laplace',
  'LaplaceWithSoftplusScale',
  'Logistic',
  