Merge branch 'master' into 'master'

talks/tensorflow/.gitkeep

talks/tensorflow/demos/.gitkeep

talks/tensorflow/demos/convolutional_network_demo.ipynb

talks/tensorflow/demos/labels_1024.tsv

talks/tensorflow/demos/sprite_1024.png

talks/tensorflow/demos/tensorboard_demo.ipynb

talks/tensorflow/img/.gitkeep

talks/tensorflow/img/bigger_boat.jpg

talks/tensorflow/img/cg/.gitkeep

talks/tensorflow/img/cg/ad.png

talks/tensorflow/img/cg/cg1.png

talks/tensorflow/img/copyright_infringement.png

talks/tensorflow/img/demos/.gitkeep

talks/tensorflow/img/demos/nothing_here

talks/tensorflow/img/fchollet_popularity_2017.jpg

talks/tensorflow/img/how_big_is_your_data.png

talks/tensorflow/img/model_zoo.png

talks/tensorflow/img/multiple_devices.png

talks/tensorflow/img/so_hot_right_now.jpg

talks/tensorflow/img/what_leo_needs.png