[gtk] (15 commits) Non-fast-forward update to branch bin-removal

[Matthias Clasen <matthiasc src gnome org>]

The branch 'bin-removal' 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:

  b02828c... Use gtk_scrolled_window_set_child throughout
  2b25a1a... scrolledwindow: Derive from GtkWidget
  993cf7c... builder-tool: Convert former bin children
  06719ef... Add a test for bin child conversion
  00c749f... button: Add a child property
  6da164a... Use gtk_button_set_child throughout
  0df93e7... scrolled window get_child use fixup
  e85a64a... checkbutton: Remove the container implementation
  769cf8d... button: Derive from GtkWidget
  e263c82... window: Add a child property
  ed1f267... Use gtk_window_set_child throughout
  2d337a9... window: Derive from GtkWidget

Commits added to the branch:

  d27b740... Use gtk_scrolled_window_set_child throughout
  157a5f8... scrolledwindow: Derive from GtkWidget
  5e964e4... button: Add a child property
  b3dc46b... Use gtk_button_set_child throughout
  839301a... scrolled window get_child use fixup
  726b756... checkbutton: Remove the container implementation
  53b5e95... button: Derive from GtkWidget
  caeff85... window: Add a child property
  48b8743... Use gtk_window_set_child throughout
  b261c09... window: Derive from GtkWidget
  9c7168a... revealer: Add a child property
  e8f9d6d... Use gtk_revealer_set_child throughout
  699d8c8... revealer: Derive from GtkWidget
  1734d2a... builder-tool: Convert former bin children
  8adab63... Add a test for bin child conversion