Refactoring, testing and documentation

This task is about getting a clean code base that is usable by others with confidence. It include 3 tasks: to refactor the existing code where it's needed, to test where needed and to document the API for others.

Among other methods, those should be tested:

• Add tests for models
• Add tests for generator.anomaly_generator
• Add tests for detectors.surprise
• Add tests for metrics.pairwise