Backend for Revelio App

Note for developers:

• For development, please add dev on every command that runs manage.py so it will use the Development environment. For example: python manage.py dev runserver, python manage.py dev makemigrations, python manage.py dev migrate.
• While developing, use python manage.py dev loaddata data_seed_authentication.json (for example) to load a data seed to development environment database.
• Currently available backend URL: /try