[gtk+] (8 commits) Non-fast-forward update to branch wip/baedert/drawing

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/drawing' 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:

  de4f513... Remove last gadget usages
  80907b0... spinbutton: Inherit from GtkWidget
  206b723... spinbutton: Remove call to GtkSpinButton API
  52a74f2... spinbuttonaccessible: Inherit from GtkWidgetAccessible
  f896671... flowbox: Initialize allocation
  d306281... cellrendererspin: Include gtkentry.h
  3bc4ff6... toolbar: Remove gadget
  496b1b9... Entry: Remove gadget

Commits added to the branch:

  e39b319... modelbutton: Remove last gadget usages
  cd34f35... spinbutton: Inherit from GtkWidget
  fedbd6d... spinbutton: Remove call to GtkSpinButton API
  0ef58be... spinbuttonaccessible: Inherit from GtkWidgetAccessible
  ad1e818... flowbox: Initialize allocation
  35c1959... cellrendererspin: Include gtkentry.h
  06f219d... toolbar: Remove gadget
  f367db0... Entry: Remove gadget