[gtk] (4 commits) Non-fast-forward update to branch wip/otte/hfw-min-size

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/hfw-min-size' 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:

  50a9a10... window: Add a new fancy way to compute min size

Commits added to the branch:

  018388d... Unrealize ATContext on unroot (*)
  031aab3... Merge branch 'ebassi/issue-4421' into 'master' (*)
  1552859... Merge branch 'wip/otte/for-master' into 'master' (*)
  0709dc7... window: Add a new fancy way to compute min size

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