Driver that opens two connections, one two a replication master, and another
to one or more slaves, and decides to use master when the connection is not
read-only, and use slave(s) when the connection is read-only.
version: $Id: NonRegisteringReplicationDriver.java,v 1.1.2.1 2005/05/13 version: 18:58:37 mmatthews Exp $