[gtk] (19 commits) Non-fast-forward update to branch wip/layout-manager

[Emmanuele Bassi <ebassi src gnome org>]

The branch 'wip/layout-manager' 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:

  adadc8a... Add GtkLayoutManager
  2fe0b90... Hook GtkLayoutManager into GtkWidget
  671085f... Add GtkWidget:layout-manager
  c8773c1... Rename the internal GtkLayoutChild type
  afe0f0c... Add GtkLayoutChild
  dd3beb1... Add GtkBoxLayout
  fc05d21... Port GtkBox to GtkBoxLayout
  f01d927... docs: Add chapter on layout managers
  7b62f43... Add GtkLegacyLayout
  23bce13... Port GtkSwitch to GtkLegacyLayout
  9743a56... Add GtkBinLayout
  d8806ce... Parse layout properties
  5ebb42a... Changes after review

Commits added to the branch:

  6efa1fc... Update POTFILES.in (*)
  a246f8c... Update Polish translation (*)
  f2dff51... win32: Drop the warp implementation (*)
  36e00ae... popover: Don't try to compute_bounds of a NULL child (*)
  e657d9d... popover: Always measure contents gizmo (*)
  ab75071... Doc comment fixup (*)
  bbcf44a... Add GtkLayoutManager
  469cd03... Hook GtkLayoutManager into GtkWidget
  d7af119... Add GtkWidget:layout-manager
  3a7c613... Rename the internal GtkLayoutChild type
  567887a... Add GtkLayoutChild
  33e4824... Add GtkBoxLayout
  2e5a795... Port GtkBox to GtkBoxLayout
  d487eba... docs: Add chapter on layout managers
  7278bea... Add GtkLegacyLayout
  17c777d... Port GtkSwitch to GtkLegacyLayout
  00093ea... Add GtkBinLayout
  655fe5d... Parse layout properties
  9973bc8... Changes after review

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