Version 3.0.0
- Updated 2.1 support to CS02, adding checks for the Incident object and the new Extensions mechanism
- Dropped support for Python 3.5
- Fixed error message when 'is_family' is true but 'name' is not present
- Fixed bug with invalid UUIDs
- Fixed bug with Indicators with no pattern property
- Fixed bug that allowed TLP marking definitions not predefined in the spec