Original commit message from CVS:
* configure.ac: bump swfdec requirement
* ext/swfdec/gstswfdec.c: (gst_swfdec_class_init),
(gst_swfdec_video_link), (gst_swfdec_loop), (gst_swfdec_init),
(gst_swfdec_get_event_masks), (gst_swfdec_get_src_formats),
(gst_swfdec_src_event): Add support for navigation
* ext/swfdec/gstswfdec.h: