Log Message:
gtk3+: update to 3.22.30.

Overview of Changes in GTK+ 3.22.30
===================================

* gtk-demo has a new 'Widgetbowl' demo

* The wayland backend now supports the stable xdg-shell protocol

* Bugs fixed:
  #28 Adwaita: Selection mode styling flickers
  #83 Completion popup on non-default GdkDisplay freezes GtkFileChooserDialog
  #88 GtkSpinButton: Buttons aren't de/sensitised as they were in GTK+ 3
 #114 All Wayland apps crash when focused (gtk_gesture_multi_press_end→...
 #129 Segfault in `wl_proxy_marshal()`
 #132 GtkTextView auto-scrolling to insert mark upon focus changes due to...
 #141 GtkEntry: add a way to set the font to monospace
 #146 GtkExpander arrow is not dimmed when the Expander is not :sensitive
 #156 Transfer annotation for gtk_gl_area_new is incorrect
 #157 Crashes in gdkdisplay-wayland when clicking any button/menu item
 #163 Unable to explicitly set GtkModelButton role
 705509	notebook popup window on tabs shows underscores
 745128	Search is useless for translated app names
 748784	GtkProgressBar text cannot be superimposed on the progress bar
 791939	Add xdg-shell (stable) support
 792632	Emoji Chooser: section buttons have no tooltips
 793062	Crash under gdk_wayland_window_attach_image()