bug#20183: 24.4.91; No resize handle to adjust width of Emacs windows

[martin rudalics]

> FWIW2, I think the default values of `right-divider-width' and
> `bottom-divider-width' should be non-zero - to make these dividers
> visible & usable.

Then people will complain that valuable display space gets wasted.

> Another problem is discovery of these frame parameters (there are no
> user options for these things, other than the `*-frame-alist' options).

I now implemented a minor mode called `window-divider-mode' and added a
menu entry to make window dividers more discoverable.

> And even if they were made aware of these frame parameters, my guess
> is that many users would not know how to customize Emacs to set them.

You're probably right.

martin