bug#9867: 24.0.90; quit-window should provide quit-window-hook

[martin rudalics]

>> - Make it either an abnormal hook run with the window quit as argument
>>    or run it from 'quit-window' but then only if it quits the selected
>>    window.
>
> I was going back and forth on whether to call the hook from
> `quit-window' or `quit-restore-window', so I ended up with invalid vode
> in the latter.  Thinking about it a bit more, I think it makes more
> sense to just run it from the former command -- other callers that call
> `quit-restore-window' should perhaps call that hook manually (or not) at
> all.
>
> I'll move the hook over.

But it's still misconfigured when WINDOW is not the selected window:
The function run by the hook would not know which window is quit and
which is its buffer.

>> - Fix the reference to the non-existent function 'quit-buffer'.
>
> OK; done.

Thanks.

martin