0.0.4 (2021-10-26)
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- Rewrite State and Transition to more flexibly load data
- Remove all logic for parsing NIST ASD data from State and Transition
- Fix bug when multiple states have same energy. Transition now finds states by energy and term symbol
- Add caching of NIST ASD data (Closes #4)
- Fix bug preventing .json files from loading correctly
- Fix bug in wigner_6j cache

0.0.2 (2021-10-13)
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