[gtk+] (18 commits) Non-fast-forward update to branch wip/cosimoc/menuitem-gadget

[Cosimo Cecchi <cosimoc src gnome org>]

The branch 'wip/cosimoc/menuitem-gadget' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  1d49174... menuitem: really ignore horizontal-padding
  2e31dbc... menuitem: use gtk_container_class_handle_border_width()
  790d5b6... menuitem: port to gadgets
  30ac3ef... theme: fix missing generated CSS
  9f47044... menuitem: deprecate width-chars style property
  8317ebb... menuitem: convert arrow rendering to GtkCssGadget
  7cd5830... menuitem: deprecate arrow-scaling style property
  deae4d2... checkmenuitem: prefer early return
  a78a61e... menuitem: trivial cleanup
  8dc9475... theme: fix menu check/radio styling
  18c9ea7... checkmenuitem: use a gadget for the check indicator
  fa4353f... menuitem: deprecate toggle-spacing style property
  74c4216... checkmenuitem: deprecate indicator-size style property

Commits added to the branch:

  51ba842... entry: Remove some dead code (*)
  6f5b19a... css node: Use g_set_object (*)
  18e8842... entry: Don't clear when setting icons (*)
  7acb670... Add more icon entry tests (*)
  ac65952... icon helper: suppress style_changed when transient (*)
  b5081ca... menuitem: really ignore horizontal-padding
  5aa6162... menuitem: use gtk_container_class_handle_border_width()
  abfefed... menuitem: port to gadgets
  2f1789f... theme: fix missing generated CSS
  e147fe6... menuitem: deprecate width-chars style property
  62de061... menuitem: convert arrow rendering to GtkCssGadget
  0d8ea93... menuitem: deprecate arrow-scaling style property
  24fcdc7... checkmenuitem: prefer early return
  a9aeeed... menuitem: trivial cleanup
  5ed7e8b... theme: fix menu check/radio styling
  f55e610... checkmenuitem: use a gadget for the check indicator
  3ca1d57... menuitem: deprecate toggle-spacing style property
  c32aca9... checkmenuitem: deprecate indicator-size style property

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