transition: Check the repeat count to remove on complete
transition: Check the repeat count to remove on complete

We can now ask the timeline for the current repeat, and if it's the last
one, then we can safely detach the transition from the animatable
instance.

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