Update the EGL backend code
Update the EGL backend code

Initialise the ClutterBackend object members when creating the
ClutterBackendEgl instance.

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