Split up the config file and added a better tutorial

This pull request makes it easier to configure beetusbot. It also ignores the config.py by default, all actual logic has been moved to different files.
The latest.txt is now also ignored by default, to allow this beetusbot can now create it by itself.

I failed to properly check the pm service because of insufficient link karma. So maybe that does not work anymore, but I doubt it, since I fixed all syntax errors