texthandle: Allow setting individual states, and separately to handles
texthandle: Allow setting individual states, and separately to handles

Now each handle gets its individual current state, and we can accumulate
more than one state on these.

https://bugzilla.gnome.org/show_bug.cgi?id=750396

alexlarsson/gtk,alexlarsson/gtk,jadahl/gtk,davidgumberg/gtk,Adamovskiy/gtk,grubersjoe/adwaita,alexlarsson/gtk,jigpu/gtk,jigpu/gtk,grubersjoe/adwaita,chergert/gtk,davidgumberg/gtk,jigpu/gtk,grubersjoe/adwaita,davidgumberg/gtk,alexlarsson/gtk,jigpu/gtk,alexlarsson/gtk,chergert/gtk,chergert/gtk,alexlarsson/gtk,davidgumberg/gtk,chergert/gtk,grubersjoe/adwaita,grubersjoe/adwaita,alexlarsson/gtk,jigpu/gtk,Adamovskiy/gtk,alexlarsson/gtk,jigpu/gtk,davidgumberg/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,Adamovskiy/gtk,chergert/gtk,jadahl/gtk,jadahl/gtk,jigpu/gtk,jadahl/gtk,Adamovskiy/gtk,Adamovskiy/gtk,jadahl/gtk,chergert/gtk,jadahl/gtk,jadahl/gtk,davidgumberg/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jadahl/gtk,grubersjoe/adwaita,davidgumberg/gtk,davidgumberg/gtk,Adamovskiy/gtk,grubersjoe/adwaita,chergert/gtk