[gtk+] (10 commits) Non-fast-forward update to branch wip/baedert/gtk-widget-destroy

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/gtk-widget-destroy' 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:

  485197d... window: Add gtk_window_destroy
  1ce3422... gtk: Stop using gtk_widget_destroy
  912fcda... GdkEvent: Unref user_data in free
  a9644ea... Stop using gtk_widget_destroy everywhere
  f56067c... widget: Remove gtk_widget_destroy
  6cc2040... testsuite: add widget refcount test case
  823e6ec... build: Add missing action-namespace example
  e1e148f... testdnd2: Adapt to widget changes
  7bddf3c... GdkEvent: OWNER_CHANGE events have a selection as well

Commits added to the branch:

  ccc8070... window: Add gtk_window_destroy
  8f4f5e6... gtk: Stop using gtk_widget_destroy
  7465588... GdkEvent: Unref user_data in free
  2d93f08... Stop using gtk_widget_destroy everywhere
  5b2e452... widget: Remove gtk_widget_destroy
  0abe68a... testsuite: add widget refcount test case
  94c6650... build: Add missing action-namespace example
  30676be... testdnd2: Adapt to widget changes
  a7effb4... GdkEvent: OWNER_CHANGE events have a selection as well
  aca12a4... GtkWindow: Remove _set_has_user_ref_count