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- Flake8 the code.
- Add support for Python 3.7, 3.8b1 and PyPy3.
- Port usage of custom POT file header template here from `z3c.recipe.i18n`.
(`11 <https://github.com/zopefoundation/zope.app.locales/pull/11>`_)
- Prevent POT files from collecting duplicate location specifiers over time.
(`12 <https://github.com/zopefoundation/zope.app.locales/pull/12>`_)