test_sticky_caps_flushing is currently failing.

It was not really useful

This fixes caps operations when different elements advertise some
of their caps' properties differently (eg, for audio channels, either
a range from 1 to 2, or a list of 1 and 2).

https://bugzilla.gnome.org/show_bug.cgi?id=663643

Add more query functions to prepare for doing more with queries

Fire query probes according to updated design doc.

Conflicts:
	gst/gstelement.h
	gst/gstghostpad.c
	gst/gstminiobject.c

Allow probes to inspect the offset and size from a probe in pull mode and allow
the probe to modify the buffer.
Update design doc a little.

Seems like a trivial case, but this was actually broken in 0.11 recently.

Make a new GstPadProbeInfo structure and pass this in the probe callback. This
allows us to add more things later and also allow the callback to replace or
modify the passed object.

API: gst_caps_is_strictly_equal()

Conflicts:
	gst/gstvalue.c

Make a separate cookie to detect chancges in the list of probes and keeping
track of what hooks have been invoked yet.
Remove the requirement to have probes on srcpads in push mode and sinkpads in
pull mode.
Add some more debug.
Keep track of what callbacks got executed. If no callback is called and we are a
blocking pad, let the item pass. This allows you to block pads on selected
items only.
Explicitly have an UPSTREAM and DOWNSTREAM PadProbeType. This allows you to only
block the pad on upstream or downstream items.
Add convenience macros to only block on downstream/upstream items.

https://bugzilla.gnome.org/show_bug.cgi?id=662777

https://bugzilla.gnome.org/show_bug.cgi?id=662777

https://bugzilla.gnome.org/show_bug.cgi?id=662777

If two values can be ordered, but are unequal, they are
necessarily distinct, thus one cannot be a subset of the other.

https://bugzilla.gnome.org/show_bug.cgi?id=662777

When we do not care about the actual resulting set,
but only whether it is empty of not, we can skip a fair bit
of GValue juggling.

Add a function that does so, since we cannot just pass NULL
to the existing API as it may be part of the API contract.

https://bugzilla.gnome.org/show_bug.cgi?id=662777

https://bugzilla.gnome.org/show_bug.cgi?id=662777

Conflicts:
	libs/gst/base/gstbasetransform.c

This reverts commit 593d2b29.

gst_controller_set_disabled () returns a void.

Add a hack to ensure the object will have a ref to the controller once we
create it. Fixes the audio example (that uses the controller api directly).

Don't log in _new before we have the log category. Use _OBJECT variants.