Update the redraw priority
Update the redraw priority

The master clock is using the redraw priority to create the source
that will be used to spin the paint sequence if something is being
animated using a timeline.

Unfortunately, the priority is too high and this causes starvation
when embedding into other toolkits -- like gtk+.

Thanks to Havoc Pennington for catching this.

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