gst/base/gstbasesink.c: Better log message.

gst/base/gstbasesink.c: Better log message.

Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object),
(gst_base_sink_handle_buffer):
Better log message.

* gst/gstbus.h:
* gst/gstelement.h:
More docs.

* gst/gstqueue.c: (gst_queue_class_init), (gst_queue_init),
(gst_queue_set_property), (gst_queue_get_property):
* gst/gstqueue.h:
Remove old unused properties.