TODO.md

Some issues I would like to solve:

• Replace file based lock against database lock.
• Completely remove Pythons ThreadPool, since it does not work well with database cursors.
• Move Pythons (Process)-Pool into management command, since a Request-Response-Cycle never shall fork any process.
• Remove configuration option CONTEXT_FIELD_CLASS.
• Reformat Python code for better readability.
• Replace Django tests against PyTest.
• Use MailHog for testing.
• Move documentation to ReadTheDocs.