Flask-bs4

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Released on January 10th 2020

- Delete `base.html.j2` template to use the standard
- Add `html5shiv`
- Add `respond.js`

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Released on January 7th 2020

- Fix: Add dependency to `Flask-WTF>=0.14.0` in `setup.py`
- Fix: Rendering of `BooleanField` allgnment

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Released on January 6th 2020

- Update to Bootstrap 4.4.1
- Update to jQuery 3.4.1
- Update to Popper 1.16.0

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Released on April 12th 2019

- Change Readme.md to show correct documentation
- Upgrade jquery to 3.4.0

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Released on April 5th 2019

- Update to Bootstrap 4.3.1