v0.2.2.4

Enhancements:

• Added poetry support via pyproject.toml
• Added other non-python tool support via setup.cfg
• Increased code coverage
• Add type hints through most of code
• Added/expanded most docstrings
• Reorganized documentation and added additional documentation
• Changed location and functions to read/write user-specific configuration file
• Expanded capability errors and auto-generated more error info
• Register an empty backend by default
• Support for backend refactoring
• Added more unit tests for headless builds
• Improved some unit tests
• Added _best value to all score types
• Added code from cypy, removing dependence of cypy
• Consolidated logging methods
• Added Correlation score
• Added source_check function
• Removed backports.tempfile from requirements.txt
• Added optional validation observation before generation of prediction
• Allowed backend to be of type Backend

Administrative:

• Created code of conduct and steering committee
• Drop support for Python 2

Other changes:

• New units tests and new location for main test module
• Moved API doc instructions
• Change quantities requirement

Bug fixes:

• Fixed log_norm_score handling of None
• Bug fix in norm_score
• Handle tkinter importerror for tkinter-less distributions
• Fixed nbconvert dependency
• Fixed circular import
• Fix validation schema warnings
• Fixed some pip version-dependent errors
• Removed spurious quotes in _run function
• Removed FileNotFoundError import

Deprecated:

• Dropped test ch. 6 since sympy is not in travis-ci