Updated the ChangeLog with a note about the clutter-ivan merge.
Updated the ChangeLog with a note about the clutter-ivan merge.

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