[gtk+] (6 commits) Non-fast-forward update to branch wip/baedert/progressbar

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/progressbar' 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:

  f67bbf8... testsuite: Add widget ordering test case
  1663720... box: Compute clips directly
  9c725f7... container: Use gtk_container_forall less
  8f21f3a... grid: Compute clip directly
  bfcdb04... widget: Fix set_parent/unparent docs to not mention GtkCont
  f6f8a18... gtkwidget: Queue a resize on the parent when unparenting

Commits added to the branch:

  5a9b60a... testsuite: Add widget ordering test case
  fe38593... box: Compute clips directly
  171ee0f... container: Use gtk_container_forall less
  a8a1725... grid: Compute clip directly
  79da682... widget: Fix set_parent/unparent docs to not mention GtkCont
  fc817f2... gtkwidget: Queue a resize on the parent when unparenting