Resolve "Add custom filter to tracking log"

Closes #101 (closed) Closes #102 (closed)

I figured out how to filter the tracking log generated by Open edX (or basically generated by the python logging module in combination with Django).

The plugin currently adjusts variables that are defined in Open edX's openedx/core/lib/logsettings.py and adjusted in Tutor's env/apps/openedx/settings/cms/production.py file.