[actor] get_transformed_position(): initialize Z value
[actor] get_transformed_position(): initialize Z value

Initialize the Z value in the point we pass to
clutter_actor_apply_transform_to_point().

http://bugzilla.openedhand.com/show_bug.cgi?id=1630

Signed-off-by: Emmanuele Bassi <049ee2061f71220e5aaf33f5be422fc2a2b06a44@linux.intel.com>

jigpu/clutter,dlespiau/clutter,GNOME/clutter,GNOME/clutter,tardyp/clutter,jigpu/clutter,jigpu/clutter,jigpu/clutter,djdeath/clutter,djdeath/clutter-android,dlespiau/clutter,heysion/clutter-clone,rkudiyarov/clutter_osx,spatulasnout/clutter,Distrotech/clutter,GNOME/clutter,djdeath/clutter,djdeath/clutter-android,ebassi/clutter,spatulasnout/clutter,djdeath/clutter,rkudiyarov/clutter_osx,ebassi/clutter,jigpu/clutter,djdeath/clutter-android,nobled/clutter,heysion/clutter-clone,Distrotech/clutter,collects/clutter,Distrotech/clutter,kerrickstaley/clutter-vala,kerrickstaley/clutter-vala,djdeath/clutter,rkudiyarov/clutter_osx,rkudiyarov/clutter_osx,spatulasnout/clutter,djdeath/clutter-android,nobled/clutter,heysion/clutter-clone,spatulasnout/clutter,GNOME/clutter,nobled/clutter,collects/clutter,kerrickstaley/clutter-vala,collects/clutter,ebassi/clutter,spatulasnout/clutter,heysion/clutter-clone,collects/clutter,Distrotech/clutter,kerrickstaley/clutter-vala,djdeath/clutter-multithreaded,djdeath/clutter-multithreaded,djdeath/clutter-multithreaded,djdeath/clutter,heysion/clutter-clone,Distrotech/clutter,Distrotech/clutter,tardyp/clutter,collects/clutter,djdeath/clutter,ebassi/clutter,GNOME/clutter,jigpu/clutter,dlespiau/clutter,tardyp/clutter,ebassi/clutter,djdeath/clutter-multithreaded,djdeath/clutter-android