gladeui/glade-cell-renderer-icon.c,
	  gladeui/glade-clipboard.c,
	  gladeui/glade-editor.c,
	  gladeui/glade-inspector.c,
	  gladeui/glade-palette.c,
	  gladeui/glade-project.c,
	  gladeui/glade-property.c,
	  gladeui/glade-signal.c,
	  gladeui/glade-widget-action.c,
	  gladeui/glade-widget.c:
	    Replaced g_object_notify() with g_object_notify_by_spec()