2006-12-27  Kristian Rietveld  <kris@gtk.org>

	Support inverting arrows via XSetting. (#377979, Yevgen Muntyan).

	* gtk/gtksettings.c (gtk_settings_class_init): add new setting
	gtk-alternative-sort-arrows.

	* gdk/win32/gdkproperty-win32.c (gdk_screen_get_setting): add
	new setting.

	* modules/engines/ms-windows/Theme/gtk-2.0/gtkrc: set new
	gtk-alternative-sort-arrows setting to true.

	* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_update_button):
	invert direction if gtk-alternative-sort-arrows is TRUE.