[RfC] Saving narrowing information within window configuration

[Tobias C. Rittweiler]

Hi,

`(info "(Elisp)Window Configurations")' says:

       ``A "window configuration" records the entire layout of one frame--all
    windows, their sizes, which buffers they contain, _what part of each
    buffer is displayed_, and the values of point and the mark.  You can
    bring back an entire previous layout by restoring a window
    configuration previously saved.'' (emphasis mine)

As far as I can see (Emacs v22.0.91.1), narrowed regions are not
restored by saved window configurations. I propose to change that.

Comments?

  -T.