remove the models after the tests

See merge request !40

Use tf.train.get_or_create_global_step (introduced in 1.2) instead of the contrib one

See merge request !39

Add a script to call tf.estimator.train_and_evaluate

See merge request !37

Early stopping hook

See merge request !38

Use bob.extension to load config files

See merge request !36

biopredict: Handle number of parallel jobs correctly

See merge request !34

Changes to the biogenerator

See merge request !33

# Conflicts:
#   bob/learn/tensorflow/estimators/Logits.py

Organizing transfer learning

See merge request !32

Renamed the keyword argumente is_training_mode to mode and use the tf.estimator.Modekeys to switch between training/validation/prediction modes