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2020-07-11 : feature release
- added EnumValue
- added Close() and Detach() for PyHKEY Class
- more consistent naming in internal methods
- added winerror attributes and values in exceptions
- corrected handling of default key values
- corrected race condition when deleting keys
- corrected decorator to check for names arguments
- added stub file for wrapt
- added more REG_* Types