50548cc Suppress warnings from flask_sqlalchemy

Authored and Committed by cqi 6 years ago
    Suppress warnings from flask_sqlalchemy
    
    We have configuration in config.py that flask_sqlalchemy recognizes and
    initializing SQLAlchemy after loading configs can read those
    configuration.
    
    Signed-off-by: Chenxiong Qi <cqi@redhat.com>