[gtk+/quartz-integration] (7 commits) ...Merge branch 'master' into quartz-integration

[John Ralls <jralls src gnome org>]

Summary of changes:

  c990699... gtk: don't style GtkLabel:selected's color separately (*)
  4c40349... Use cairo_push_group() to mix backgrounds during transition (*)
  c0ba1c9... Ensure gtk_render_background()/frame() yield the same shape (*)
  2e093cd... Demonstrate the problem with a workaround (*)
  bfaf472... Avoid tons of warnings from stylecontext initialization wit (*)
  69e4a3f... Updated Galician translations (*)
  2654dda... Merge branch 'master' into quartz-integration

(*) This commit already existed in another branch; no separate mail sent