Handle old buffer display options more faithfully.

Handle old buffer display options more faithfully.

* window.el (display-buffer-alist): In default value do not
enforce searching a window on any but the selected frame.
Reported by Katsumi Yamaoka <yamaoka@jpl.org>.
(display-buffer-select-window): Remove function.
(display-buffer-in-window): When a window on another frame gets
reused, do not select it any more but just raise its frame if
necessary (Bug#8851) and (Bug#8856).
(display-buffer-normalize-options): Handle pop-up-frames related
options more faithfully.
(pop-to-buffer): Don't rely on `display-buffer' selecting the
window if it is on another frame.