TensorFlow: Improve performance of Alexnet

Changes:

* error message that refers to removed `DefaultSession` method.
* -Wnull-conversion warnings
* the "_start_time" attr for recvs when the flag "--brain_enable_scheduling_for_recvs" is set.
* typo in tutorial data download progress message.
* a typo ("however their installing"=>"however installing").
* typo, rename "TensorFlow Mechanics" to "How To" to be consistent with the website.
* a typo ("subtact"=>"subtract").
* protobuf examples in comments in tensorflow::Example.proto.
* formula formatting in MNIST beginner tutorial
* negative fraction-of-queue-full stats
* protobuf inclusion path so that Android demo will build under Blaze.
* small typo (moderatly > moderately)
* Session.run() to check that tensor arguments come from the session's graph.
* another six import
* seq2seq typo in bazel command

Base CL: 108349164

1 files changed, 15 insertions, 0 deletions

diff --git a/tensorflow/stream_executor/multi_platform_manager.h b/tensorflow/stream_executor/multi_platform_manager.h
index ade7fac24b..6f370bcd4c 100644
--- a/tensorflow/stream_executor/multi_platform_manager.h
+++ b/tensorflow/stream_executor/multi_platform_manager.h
@@ -1,3 +1,18 @@
+/* Copyright 2015 Google Inc. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
 // This is a registration-oriented interface for multiple platforms. It will
 // replace the MachineManager singleton interface, as MachineManager does not
 // currently support simultaneous use of multiple platforms.