[ESS] Building documentation with texinfo 5

[Stefan Husmann]

Hello,

texinfo 5 seems to be stricter in some ways. So building the docs fails:

Wrote /home/haawda/paketierung/maintained_by_me/emacs-ess-svn/src/ess-build/lisp/msdos.elc
make[1]: Leaving directory `/home/haawda/paketierung/maintained_by_me/emacs-ess-svn/src/ess-build/lisp'
cd doc; make all
make[1]: Entering directory `/home/haawda/paketierung/maintained_by_me/emacs-ess-svn/src/ess-build/doc'
making Info documentation...
LC_ALL=C LANG=en makeinfo ess.texi
ess.texi:12: warning: @include should only appear at a line beginning (possibly involving @ESSVER)
ess.texi:12: warning: @include should not appear in @w (possibly involving @ESSVER)
ess.texi:12: misplaced }
ess.texi:12: @w missing close brace
./newfeat.texi:1: warning: @itemize has text but no @item
./onewfeat.texi:1: warning: @itemize has text but no @item
make[1]: *** [info/ess.info] Fehler 1
make[1]: Leaving directory `/home/haawda/paketierung/maintained_by_me/emacs-ess-svn/src/ess-build/doc'
make: *** [all] Fehler 2

Please give this a review.

Best Regards Stefan