Some fixes for modal hint setting based on a patch from Arvind Samptur

Some fixes for modal hint setting based on a patch from Arvind Samptur

Sun Dec 15 18:47:30 2002  Owen Taylor  <otaylor@redhat.com>

	Some fixes for modal hint setting based on a patch
	from Arvind Samptur (#100416)

	* gtk/gtkdialog.c (gtk_dialog_run): Call gtk_window_set_modal
	before showing the window for efficiency.

	* gtk/gtkwindow.c (gtk_window_realize): Ignore the EWMH
	constraint that the transient-for hint must always be
	set on windows with the modal hint and just always set
	the modal hint.

	* gtk/gtkwindow.c (gtk_window_set_modal): Update the
	modal hint on the GdkWindow when the window is realized.