Support Python 3.10 and Django 3.2

The code already supported Python 3.10. Making it official.

Django 3.2 has a non-backwards compatible change that requires a migration from AutoField to BigAutoField
The application disables this change and will remain on AutoField.

Support Django 3.1

OneEvent was already working with Django 3.1. This just updates the Pypi description and CI environment to make it official

Use generic User model

Merge pull request #23 from gchazot/generic_user_model

Use app-defined User model

Change emails FROM to be configurable

Merge pull request #21 from gchazot/prepare_v1.0.1

Release v1.0.1

Final 1.0.0 release

Added a view to help with deleting an account

Pre-release for final testing

• Trim down navbar using breadcrumbs and a user menu
• Add ability to customise more the navbar and the new user menu
• Replace hardcoded cities with more generic timezones
• Lots of code cleanup done

Remove internal messaging

Merge pull request #10 from gchazot/fix_pre_release_a2

Second alpha release of 1.0.0

Upgrade to Python3.6+ and Django 2.1, 2.2 and 3.0

Merge pull request #8 from gchazot/road_to_django3

Upgrade to Python 3.6+, django 2.1, 2.2 and 3.0

v0.3.1.1: Merge pull request #7 from gchazot/release_0.3.1.1

Release documentation and description changes