Disable `SQLALCHEMY_TRACK_MODIFICATIONS`
Disable `SQLALCHEMY_TRACK_MODIFICATIONS`

This is just to avoid the warning.  Track modifications don't affect us
anyway, since they only apply when one wants to make use of tracking
changes in the model.  It will in future releases be disabled by default
according to the warning.

agdsn/sipa,MarauderXtreme/sipa,lukasjuhrich/sipa,MarauderXtreme/sipa,lukasjuhrich/sipa,agdsn/sipa,lukasjuhrich/sipa,agdsn/sipa,MarauderXtreme/sipa,agdsn/sipa,lukasjuhrich/sipa