Merge branch 'autoencoder_pretrain' into 'master'

bob/learn/pytorch/architectures/ConvAutoencoder.py

bob/learn/pytorch/architectures/__init__.py

bob/learn/pytorch/config/__init__.py

bob/learn/pytorch/config/autoencoder/__init__.py

bob/learn/pytorch/config/autoencoder/net1_celeba.py

bob/learn/pytorch/datasets/__init__.py

bob/learn/pytorch/datasets/data_folder.py

bob/learn/pytorch/datasets/utils.py

bob/learn/pytorch/scripts/train_autoencoder.py

bob/learn/pytorch/test/test.py

conda/meta.yaml

doc/guide_conv_autoencoder.rst

doc/img/conv_ae_after_70_epochs.png

doc/index.rst

requirements.txt

setup.py