[libhandy] (8 commits) Non-fast-forward update to branch wip/exalm/leaflet-transltions

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/leaflet-transltions' 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:

  814b9d4... shadow-helper: Mark the shadow area for GdkWindow
  11b3c2f... stackable-box: Reduce amount of set_child_visible() calls
  507a742... stackable-box: Stop setting visibility in set_position()
  20bad87... stackable-box: Fix code style
  c3c456a... stackable-box: Add child-visible-changed signal
  af4e7b5... leaflet: Add child-visible-changed signal
  6b5a022... deck: Add child-visible-changed signal
  5c29d79... stackable-box: Add mode-transition-progress property
  9708b1e... leaflet: Add mode-transition-progress property

Commits added to the branch:

  8e44135... stackable-box: Reduce amount of set_child_visible() calls
  408da54... stackable-box: Stop setting visibility in set_position()
  c609448... stackable-box: Fix code style
  768b6a3... stackable-box: Add child-visible-changed signal
  458d6bf... leaflet: Add child-visible-changed signal
  c7d0c29... deck: Add child-visible-changed signal
  8b1d05c... stackable-box: Add mode-transition-progress property
  bbe0f5b... leaflet: Add mode-transition-progress property