Relinquish the focus when unmapped while owning it
Relinquish the focus when unmapped while owning it

Bug 1547 - when an actor is unmapped while owning the focus, it should
           release it

When an actor is unmapped while owning the focus, the should release it.

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

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