Fix remaining ::focus-in signal emission
Fix remaining ::focus-in signal emission

Commit 515350a7 renamed ::focus-in and ::focus-out to ::key-focus-in
and ::key-focus-out respectively. One signal emission for ::focus-out
escaped the renaming in ClutterStage.

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