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

[martin rudalics]

> Could be, but if we want to change that, we need to come up with some
> useful idea of how to deal with a situation where you have the fringe
> between the display margins and the rest of the text area.  Surely, in
> this case you must include the display margins in the window
> dimensions,

... but the display margins were always included in the window
dimensions ...

> but OTOH the fringes separate the window into 2 disjoint
> areas.

... so what am I missing?  All I want is to maintain fringes exclusively
inside the frame's root window.

martin