gst/base/gstadapter.c: Flushing out 0 bytes is ok for this function.

gst/base/gstadapter.c: Flushing out 0 bytes is ok for this function.

Original commit message from CVS:
* gst/base/gstadapter.c: (gst_adapter_flush):
Flushing out 0 bytes is ok for this function.

* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
no newsegment gives a warning and sets the start/stop to
invalid.

* gst/base/gstbasetransform.c: (gst_base_transform_change_state),
(gst_base_transform_set_passthrough):
Some debug info.

* gst/gstminiobject.c: (gst_mini_object_ref):
Check refcount here too.

* gst/gstpad.c: (gst_pad_init):
Pads are initially flushing and refusing data.

* gst/gstutils.c: (gst_element_link_pads_filtered):
When adding a capsfilter element make sure it has the
same state as the parent bin.