3.9.3
=====

Wallpaper update for 3.10
Add HC icon for system-software-update

GTK3:
  Initial support for GTK client side decorations
  Adapt to changes in GTK master state propagation
  Add support for activity on top of GdMainView cells (Zeeshan Ali)
  Improve theming for GEdit, Baobab (Ignacio Casal Quinteiro, Stefano Facchini)