[gtk] (23 commits) ...Adwaita: Style spinbutton up/down children explicitly

[Timm Bäder <baedert src gnome org>]

Summary of changes:

  1125d08... range: Remove outdated comment (*)
  42e6630... scale: Make a function shorter (*)
  0a96c3f... scale: Properly update when inverted (*)
  0ac20f9... spinbutton: Remove an unnecessary queue_draw() call (*)
  dd7d171... treeview: Remove GTK_TREE_VIEW_FOREGROUND_LINE (*)
  8a51796... treeview: Remove two _dashes members (*)
  b812ff2... treeview: Shorten destroy() implementation (*)
  a937452... snapshot: Annotate child_bounds parameter of push_repeat as (*)
  4fba7f8... treeview: Redo grid line drawing using textures
  8d1a224... treeview: Redo tree line drawing using textures
  2914c36... gl renderer: Implement a subset of repeat nodes
  4c70bf6... testsuite: Add a repeat node test case
  13c0a9e... iconcache: Replace broken debugging code
  251bf45... iconcache: ref textures
  c812e1d... Adwaita: Fix hovering modelbutton arrows
  0415574... testsuite: Add another repeat node test case
  8c88453... cellrenderer: Add accessors for {get,set}_is_expande{r,d}
  c6961f1... range: Use public delay-factory API
  6f1cade... color chooser: Port checkered pattern drawing from cairo
  3242174... AccelLabel: Add get_accel_closure() accessor
  9999ac1... range: Avoid a divison by 0
  76f2c4f... Adwaita: Update .devel headerbar styling
  164ebee... Adwaita: Style spinbutton up/down children explicitly

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