Merge branch 'yapf' into 'master'

bob/learn/tensorflow/analyzers/ExperimentAnalizer.py

bob/learn/tensorflow/analyzers/SoftmaxAnalizer.py

bob/learn/tensorflow/analyzers/__init__.py

bob/learn/tensorflow/dataset/__init__.py

bob/learn/tensorflow/dataset/bio.py

bob/learn/tensorflow/dataset/image.py

bob/learn/tensorflow/dataset/siamese_image.py

bob/learn/tensorflow/dataset/tfrecords.py

bob/learn/tensorflow/dataset/triplet_image.py

bob/learn/tensorflow/datashuffler/Base.py

bob/learn/tensorflow/datashuffler/Disk.py

bob/learn/tensorflow/datashuffler/DiskAudio.py

bob/learn/tensorflow/datashuffler/ImageAugmentation.py

bob/learn/tensorflow/datashuffler/Memory.py

bob/learn/tensorflow/datashuffler/Normalizer.py

bob/learn/tensorflow/datashuffler/OnlineSampling.py

bob/learn/tensorflow/datashuffler/Siamese.py

bob/learn/tensorflow/datashuffler/SiameseDisk.py

bob/learn/tensorflow/datashuffler/SiameseMemory.py

bob/learn/tensorflow/datashuffler/TFRecord.py