GtkPrintUnixDialog: Set a higher limit for the number of copies
GtkPrintUnixDialog: Set a higher limit for the number of copies

As requested in bug 672676.

ahodesuka/gtk,jadahl/gtk,jessevdk/gtk,grubersjoe/adwaita,davidgumberg/gtk,chergert/gtk,ahodesuka/gtk,Lyude/gtk-,alexlarsson/gtk,davidgumberg/gtk,Adamovskiy/gtk,jessevdk/gtk,grubersjoe/adwaita,jigpu/gtk,alexlarsson/gtk,jadahl/gtk,Lyude/gtk-,alexlarsson/gtk,ahodesuka/gtk,ahodesuka/gtk,Adamovskiy/gtk,grubersjoe/adwaita,davidgumberg/gtk,jadahl/gtk,Lyude/gtk-,ahodesuka/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,alexlarsson/gtk,Lyude/gtk-,Adamovskiy/gtk,grubersjoe/adwaita,Lyude/gtk-,chergert/gtk,grubersjoe/adwaita,jigpu/gtk,jessevdk/gtk,davidgumberg/gtk,Adamovskiy/gtk,jigpu/gtk,Lyude/gtk-,jessevdk/gtk,jadahl/gtk,grubersjoe/adwaita,jadahl/gtk,Adamovskiy/gtk,Adamovskiy/gtk,ahodesuka/gtk,jigpu/gtk,alexlarsson/gtk,ahodesuka/gtk,Lyude/gtk-,davidgumberg/gtk,chergert/gtk,davidgumberg/gtk,grubersjoe/adwaita,Adamovskiy/gtk,alexlarsson/gtk,jessevdk/gtk,jigpu/gtk,chergert/gtk,chergert/gtk,alexlarsson/gtk,jadahl/gtk,chergert/gtk,jadahl/gtk,grubersjoe/adwaita,jessevdk/gtk,chergert/gtk,davidgumberg/gtk,alexlarsson/gtk,Lyude/gtk-,ahodesuka/gtk,jigpu/gtk,jadahl/gtk,jigpu/gtk,jessevdk/gtk,davidgumberg/gtk