bug#14233: 24.3; Don't constrain frame size to character multiples

[Stefan Monnier]

> What I _want_ to do is no less than to remove the aim to keep the number
> of columns/lines unchanged when changing aspects that control the
> appearance of frames like scrollbars, fringes, or internal borders.
> And, as Jan remarked, we should also try to keep the combined size of an
> Emacs frame + its externally maintained parts unchanged when, for
> example, removing an external toolbar (unless the window manager handles
> this case already as it apparently already does when resizing an
> external menubar).

Sounds good to me.


        Stefan