handle all tibrv advisory messages

For each tibrv transport object, you need to link it to a callback
object like this. If you leave one transport unattended, advisories will
show up on it. Below is a partial solution that is almost water tight.

new TibrvListener(new TibrvQueue(), mySysAdvisoryCallback,
transport,"_RV.WARN.SYSTEM.>",null);

static private TibrvMsgCallback mySysAdvisoryCallback = new
TibrvMsgCallback() {
public void onMsg(TibrvListener listner, TibrvMsg msg) {
if
("_RV.WARN.SYSTEM.LICENSE.EXPIRE".equals(msg.getSendSubject())) {
return;
}
log.warn(" Received advisory message: " + msg) ;
}
};