message: Document support for boolean values in tf.contrib.training.HParams.
diff: @@ -315,7 +315,7 @@ class HParams(object):
  Hyperparameters have type, which is inferred from the type of their value
  passed at construction type. The currently supported types are: integer,
  - float, string, and list of integer, float, or string.
  + float, boolean, string, and list of integer, float, boolean, or string.
  You can override hyperparameter values by calling the
  [`parse()`](#HParams.parse) method, passing a string of comma separated
  