Add new capability GTK_PRINT_CAPABILITY_NUMBER_UP.

Add new capability GTK_PRINT_CAPABILITY_NUMBER_UP.

2007-05-28  Carlos Garcia Campos  <carlosgc@gnome.org>
	* gtk/gtkprinter.[ch]: Add new capability
	GTK_PRINT_CAPABILITY_NUMBER_UP.
	* docs/reference/gtk/tmpl/gtkprintunixdialog.sgml:
	* gtk/gtkprintunixdialog.c: (update_dialog_from_capabilities):
	* modules/printbackends/file/gtkprintbackendfile.c:
	(file_printer_get_options), (file_printer_get_settings_from_options):
	* modules/printbackends/cups/gtkprintbackendcups.c:
	(cups_printer_get_capabilities): Add a new print capability to specify
	whether print dialog will offer printing multiple pages per sheet. (#398414)

svn path=/trunk/; revision=17963