1. Applied changes suggested from Markus.

2. tpmfilter now prints username of the client instead of the hostname
of the target server.

server/modules/protocol/MySQL/MySQLBackend/mysql_backend.c

@@ -895,7 +895,6 @@ gw_read_and_write(DCB *dcb)
         if (session_ok_to_route(dcb))
         {
             gwbuf_set_type(stmt, GWBUF_TYPE_MYSQL);
-            stmt->server = dcb->server;
             session->service->router->clientReply(session->service->router_instance,
                                                   session->router_session,
                                                   stmt, dcb);