Fixed lack of reaction for keyboard events after showing stage on osx.
Fixed lack of reaction for keyboard events after showing stage on osx.

Trick with hiding view while showing the stage affects on responder
chain. The main view ceases to be first responder and we should
manually set first responder.

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