Make MOD1-drag also do action ask.

Make MOD1-drag also do action ask.

Thu Jan 14 11:29:53 1999  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkdnd.c (gtk_drag_get_event_action): Make
	MOD1-drag also do action ask.

	* gtk/gtkdnd.c (gtk_drag_button_release_cb): Send the
	button-release event we simulate to get grabs released,
	with a window of GDK_ROOT_PARENT instead of the actual
	widget. This is a bad hack in some sense, but seems
	to work nicely. (It's sort of like what you would
	if you grabbed on button press, then the user
	released outside of the widget.)