Add shell_context_processor

Author: anselal

manage.py

@@ -25,6 +25,10 @@
 )
 COV.start()
 
+@app.shell_context_processor
+def make_shell_context():
+    return dict(app=app, db=db)
+
 @cli.command()
 def create_db():
     db.drop_all()