Feature freeze break for libwnck and gnome-panel

[Ryan Lortie <desrt desrt ca>]

This is a feature freeze break request for libwnck and gnome-panel.

The patches have been accepted by the module maintainers on condition of
release team approval.

The first patch modifies the API of libwnck which Elijah says is not
subject to the API freeze because it's a desktop module.  The
modifications are the addition of a function.  If you do not call the
function then the library continues to behave in exactly the same way as
it used to.

The second patch modifies the wncklet applet in the panel to use the new
functionality.  For the second patch, as per the comments in the bugs,
approval is only being requested to enable the new functionality for
pixmap backgrounds (not solid colour).  The functionality for solid
colour will be added in 2.11.

The relevant bugs are:
http://bugzilla.gnome.org/show_bug.cgi?id=167932 (libwnck)
http://bugzilla.gnome.org/show_bug.cgi?id=168117 (gnome-panel wncklet)

The change should not wait for the next development phase because it's
nice eyecandy that people will like and it's the one missing piece out
of all the work that went into making transparent panels look more
reasonable for the release of 2.10.

That being said, the changes are new functionality - and trivial at
that.

Thanks for your consideration.

Cheers