Fixes various issues discovered while trying to apply this linter to [IDOM's](https://github.com/idom-team/idom) code base.
Commits on Sep 28, 2020
- fix `__version__` and minor non-function typo - ec60f1c
Commits on Sep 29, 2020
- fix bug where nested element def treated as hook - c5d17f8
- fix misc - 3af0a88
- fix types - d8ab1f6
- fix setup.py - f55cb6d