Fix offset conversations

• Fix offset conversation bug #90 thanks to @SSJenny90

Update depencies

• Drop Python 3.7 support
• Add Python 3.11 support
• Chore: Update django dependency from 4.0 to 4.2
• Chore: Switch to from travis-ci to github actions

Getting better

• fix error with Django 3.2 (issue #36_)
• remove PrecisionError
• restructure function a bit, add more type annotations

Little tokens

• only a internal technical release as the PyPi token had to be removed
  due to security breach before and no new token was set before
  releasing 0.6.1

Small Bugs are still annoying

• Fix wrong mixin type for DecimalQuantityFormField (merge request #31 from ikseek_)
• Fix BigIntegerQuantityField and IntegerQuantityField showing wrong widget in django admin issue #34_

The Power of the Decimal

• Added DecimalQuantityField
• Improved Testing a lot, the different field types are tested individually. Now we have a total of 142 tests covering 98% of the code.

No new Issues so its time for a proper release

Update README.md

Fix badge url typo (pypi version)

v0.5b1: Update README.md

First beta release to see if CI/CD works well

Version 0.5

* API Change: Units are now defined project wide in settings and not by defining ureg for Fields
* Change of Maintainer to Carli* Freudenberg
* Ported code to work with current version of Django (2.2., 3.0, 3.2) and Python (3.6 - 3.9)
* added test for merge requests
* use black to format code
* using pytest instead of deprecated django-nose
* Allow custom ureg and integer unit field (merge request #11 from jonashaag)
* pass base_unit from field to widget (merge request #5 from cornelv)
* now using PyScaffold for versioned release
* added documentation and uploaded to readthedocs.org
* using pre-commit (also in CI)
* improved travis ci builds
* Created Changelog file