Merge branch 'r1.0' into r1.0

Author: alanwang93

RELEASE.md

@@ -85,6 +85,7 @@ To help you upgrade your existing TensorFlow Python code to match the API change
 * In the C++ API (in tensorflow/cc), Input, Output, etc. have moved
   from the tensorflow::ops namespace to tensorflow.
 * Change arg order for `{softmax,sparse_softmax,sigmoid}_cross_entropy_with_logits` to be (labels, predictions), and force use of named args.
+* tf.nn.rnn_cell.* and most functions in tf.nn.rnn.* (with the exception of dynamic_rnn and raw_rnn) are temporarily in tf.contrib.rnn.  They will be moved back into core for TF 1.1.
 
 ## Bug Fixes and Other Changes
 * Numerous C++ API updates.