Update git ignore file
Update git ignore file

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