gst/realmedia/rmdemux.c: Use debug category, fix EOS handling. filesrc ! rmdemux...

gst/realmedia/rmdemux.c: Use debug category, fix EOS handling. filesrc ! rmdemux now works.

Original commit message from CVS:
* gst/realmedia/rmdemux.c: (gst_rmdemux_class_init),
(gst_rmdemux_init), (gst_rmdemux_handle_sink_event),
(gst_rmdemux_loop), (gst_rmdemux_add_stream), (re_hexdump_bytes),
(re_dump_pascal_string), (gst_rmdemux_dump__rmf),
(gst_rmdemux_dump_prop), (gst_rmdemux_parse_mdpr),
(gst_rmdemux_dump_mdpr), (gst_rmdemux_dump_indx),
(gst_rmdemux_dump_data):
Use debug category, fix EOS handling. filesrc ! rmdemux now
works.