New version of multiscreen patch

[Miguel de Icaza]

> > Ctrl-Alt-Insert: Add bookmark
> > Ctrl-Alt-Up: Move to previous bookmark
> > Ctrl-Alt-Down: Move to next bookmark
> 
> Supporting this in xterm may be problematic, unless mc is linked with
> libX11.  Perhaps linking with libX11 should become the default at some
> point.

This is a terrible idea, lets not link with X11 for a text-mode
application.  Not to mention that it will also be incorrect for some
cases.

Miguel.