Merge branch 'updates' into 'master'

bob/learn/tensorflow/datashuffler/Base.py

bob/learn/tensorflow/datashuffler/TFRecord.py

bob/learn/tensorflow/datashuffler/TFRecordImage.py

bob/learn/tensorflow/datashuffler/__init__.py

bob/learn/tensorflow/loss/BaseLoss.py

bob/learn/tensorflow/loss/__init__.py

bob/learn/tensorflow/network/InceptionResnetV1.py

bob/learn/tensorflow/network/InceptionResnetV2.py

bob/learn/tensorflow/network/__init__.py

bob/learn/tensorflow/script/db_to_tfrecords.py

bob/learn/tensorflow/script/lfw_db_to_tfrecords.py

bob/learn/tensorflow/script/train.py

bob/learn/tensorflow/test/test_cnn.py

bob/learn/tensorflow/test/test_cnn_other_losses.py

...rn/tensorflow/test/test_cnn_trainable_variables_select.py

bob/learn/tensorflow/test/test_datashuffler.py

bob/learn/tensorflow/test/test_datashuffler_augmentation.py

bob/learn/tensorflow/trainers/SiameseTrainer.py

bob/learn/tensorflow/trainers/Trainer.py

bob/learn/tensorflow/trainers/TripletTrainer.py