Set CONN_MAX_AGE default to 0
Created by: kaizoku
This sets both the CONN_MAX_AGE where manually specified to 0,
and uses the edx_django_service_default_db_conn_max_age
variable
to set the default CONN_MAX_AGE for all edx django services.
Created by: kaizoku
This sets both the CONN_MAX_AGE where manually specified to 0,
and uses the edx_django_service_default_db_conn_max_age
variable
to set the default CONN_MAX_AGE for all edx django services.