*   Starting from TensorFlow 1.11, Windows builds will use Bazel. Therefore, we
    will drop official support for cmake.

## Bug Fixes and Other Changes

*   `tf.data`:
    *   `tf.contrib.data.group_by_reducer()` is now available via the public
        API.
    *   `tf.contrib.data.choose_from_datasets()` is now available via the public
        API.
    *   Adding `drop_remainder` argument to `tf.data.Dataset.batch()` and