Removed files from formatting whitelist
Refactor show_examples.py to allow unit testing
Refactor show_weights.py to allow unit testing
Refactor summarize_model.py to allow unit testing
Fixed formatting issues test_autoencoder.py
Add unit test for show_examples.py
Add unit test for show_weights.py
Add unit test for summarize_model.py
Add unit test for train.py
Refactor train.py to allow unit testing
Removed unnecessary wiskott.yaml file which was accidentally committed
Add SkipTest for when matplotlib and/or pyplot are not present
Merge pull request #967 from bartvm/scripts_tests_rebase

Scripts tests rebase
DOC: Added pull request checklist.