[gtk] Non-fast-forward update to branch matthiasc/for-master

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/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:

  3d3fa23... Adwaita: Don't do n-th child things for list rows

Commits added to the branch:

  bfe5b0d... Adwaita: Don't do n-th child things for list rows