Original commit message from CVS:
* ext/ogg/gstoggdemux.c: (gst_ogg_pad_typefind),
(gst_ogg_demux_chain_elem_pad), (gst_ogg_demux_queue_data),
(gst_ogg_demux_chain_peer), (gst_ogg_pad_submit_packet),
(gst_ogg_pad_submit_page), (gst_ogg_chain_new_stream),
(gst_ogg_demux_seek), (gst_ogg_demux_get_data),
(gst_ogg_demux_get_next_page), (gst_ogg_demux_do_seek),
(gst_ogg_demux_bisect_forward_serialno),
(gst_ogg_demux_read_chain), (gst_ogg_demux_find_chains),
(gst_ogg_demux_chain), (gst_ogg_demux_loop), (gst_ogg_print):
add more debugging
clean up printf formats for granulepos and serialno