And add missing DOCTYPE

ts parameter is needed to filter-out invalid (delayed) requests

- Add description and url
- Use find_packages from setuptools
- Do not include package data (there are none)

This variant does not need to know the packege name from inside
the package

- Use .flaskenv and .env files to set environment variables
- Use dotenv package to automatically load them
- Add quick development notes

Remove wsgi.py used up to now. It is generated during deployment

Mailpass and CA should have their own dedicated Redis databases