add multi-master(e.g. postgres-x2) support
add multi-master(e.g. postgres-x2) support

digoal/pgbouncer-x2,wurenny/pgbouncer-x2,wurenny/pgbouncer-x2,wurenny/pgbouncer-x2,digoal/pgbouncer-x2,digoal/pgbouncer-x2,digoal/pgbouncer-x2,wurenny/pgbouncer-x2