[gtk+/quartz-integration] (8 commits) ...Merge branch 'master' into quartz-integration

[John Ralls <jralls src gnome org>]

Summary of changes:

  3938d3c... [gi] add Virtual annotation for gtk_container_forall vfunc (*)
  69b9794... broadway: fix a build warning (*)
  f4930dc... widget: reset widget style after applying style classes fro (*)
  66a77d0... Make gdk_keyval_to_unicode return more codes (*)
  9205abe... range: allow stepper-spacing > 0 and trough-under-steppers  (*)
  6ecfddf... gdkkeyuni: Fix DEL for binary search (*)
  ff9eb56... Don't only use ch != 0 to check if a character is a control (*)
  c513ee6... Merge branch 'master' into quartz-integration

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