gst/gstqueue.*: Propagate GstFlowReturn more intelligently upstream and output an...

gst/gstqueue.*: Propagate GstFlowReturn more intelligently upstream and output an ERROR/EOS when streaming stopped du...

Original commit message from CVS:
* gst/gstqueue.c: (gst_queue_init), (gst_queue_handle_sink_event),
(gst_queue_chain), (gst_queue_loop), (gst_queue_handle_src_event),
(gst_queue_handle_src_query), (gst_queue_sink_activate_push),
(gst_queue_src_activate_push), (gst_queue_change_state),
(gst_queue_get_property):
* gst/gstqueue.h:
Propagate GstFlowReturn more intelligently upstream and output
an ERROR/EOS when streaming stopped due to fatal error.