This release focuses on stability and re- common design patterns. Primarily the release
- _Improves managers_ for Estimator and DataSet, by enabling `objects.filter` and `objects.get_or_create` for machine learning models
- _Improves testing_, by adding factory_boy, replacing nose with pytest, expanding tox & travis for environment support, and adding coveralls
- _Creates an Evaluator and EvaluationResult_ for convenient meta data storage upon prediction
- _Removes unimportant code_ like the removing EvaluationJob class, removing non-storage Manager aggregate file utility functions, and deprecates non-manager retrieval methods like `get_by_hash`, `get_by_model` and `get_or_create`.