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New features:
- Drop 3.4 support, add 3.7, 3.8, PyPy, PyPy3 support.
[maurits] (16)
- Use the zope global request if available as a fallback if the context does not have it [ale-rt] (17)
Bug fixes:
- Make code black [ale-rt] (17)
- Improve speed when getting resources from the cache [ale-rt] (19)
- Remove ``bootstrap-buildout.py``. If you use buildout, use virtualenv and pip install zc.buildout instead.
Add [isort] and [flake8] config sections into setup.cfg.
Sort all imports in Python files.
[thet] (21)