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Version: 0.17.3
Date: 2019-06-01

  Changed:
    - Code reformatted.

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Version: 0.17.2
Date: 2019-05-09

  Changed:
    - improved handling of cliffs.

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Version: 0.17.1
Date: 2019-03-17

  Changed:
    - polished, gitified and published
