[gtk] (11 commits) Non-fast-forward update to branch wip/baedert/for-master

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/for-master' 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:

  5d941b1... treeview: Redo grid line drawing using textures
  cefbb68... treeview: Redo tree line drawing using textures
  3442382... gl renderer: Implement a subset of repeat nodes
  4cea4a6... testsuite: Add a repeat node test case
  57ab87d... iconcache: Replace broken debugging code
  34d0bfd... iconcache: ref textures
  d800750... Adwaita: Fix hovering modelbutton arrows
  f9ff5ba... testsuite: Add another repeat node test case

Commits added to the branch:

  3ba207d... treeview: Redo grid line drawing using textures
  84ab535... treeview: Redo tree line drawing using textures
  a0ba173... gl renderer: Implement a subset of repeat nodes
  83d1683... testsuite: Add a repeat node test case
  e3ae39b... iconcache: Replace broken debugging code
  2656683... iconcache: ref textures
  d1893bb... Adwaita: Fix hovering modelbutton arrows
  01214c6... testsuite: Add another repeat node test case
  2fb49c7... range: Use public delay-factory API
  23f265a... FIXUP Merge into repeat node impl commit
  46b20c0... color chooser: Port checkered pattern drawing from cairo