Original commit message from CVS:
* gst/udp/gstmultiudpsink.c: (gst_multiudpsink_class_init),
(gst_multiudpsink_set_clients_string),
(gst_multiudpsink_get_clients_string),
(gst_multiudpsink_set_property), (gst_multiudpsink_get_property),
(gst_multiudpsink_init_send), (gst_multiudpsink_add_internal),
(gst_multiudpsink_add), (gst_multiudpsink_clear_internal),
(gst_multiudpsink_clear):
Add property do configure destination address/port pairs
API:GstMultiUDPSink::clients