message: [tf.contrib.data] Expose `tf.contrib.data.batch_and_drop_remainder()`.
diff: @@FixedLengthRecordDataset
  @@TextLineDataset
  +@@batch_and_drop_remainder
  @@read_batch_features
  @@rejection_resample
  @@group_by_window
  @@ -32,6 +33,7 @@ from __future__ import division
  from __future__ import print_function
  # pylint: disable=unused-import
  +from tensorflow.contrib.data.python.ops.dataset_ops import batch_and_drop_remainder
  from tensorflow.contrib.data.python.ops.dataset_ops import Dataset
  from tensorflow.contrib.data.python.ops.dataset_ops import FixedLengthRecordDataset
  from tensorflow.contrib.data.python.ops.dataset_ops import group_by_window
  