box-layout: Fix RTL layout swapping with non-zero container offsets
box-layout: Fix RTL layout swapping with non-zero container offsets

https://bugzilla.gnome.org/show_bug.cgi?id=706450

jigpu/clutter,Distrotech/clutter,jigpu/clutter,ebassi/clutter,ebassi/clutter,ebassi/clutter,djdeath/clutter,GNOME/clutter,jigpu/clutter,ebassi/clutter,djdeath/clutter,Distrotech/clutter,djdeath/clutter,jigpu/clutter,GNOME/clutter,djdeath/clutter,Distrotech/clutter,djdeath/clutter,jigpu/clutter,Distrotech/clutter,Distrotech/clutter,djdeath/clutter,jigpu/clutter,GNOME/clutter,ebassi/clutter,Distrotech/clutter,GNOME/clutter,GNOME/clutter