Add spellchecker scripts for Octave and run spellcheck of documentation interpreter/doccheck: New directory for spelling/grammar scripts. interpreter/doccheck/README: Instructions for using scripts. interpreter/doccheck/spellcheck: Script to spellcheck a Texinfo file. interpreter/doccheck/aspell.conf: GNU Aspell configuration file for Octave documentation. interpreter/doccheck/aspell-octave.en.pws: Private Aspell dictionary. interpreter/doccheck/add_to_aspell_dict: Script to add new Octave-specific words to private Aspell dictionary. interpreter/octave.texi: New @nospell macro which forces Aspell to ignore the word marked by the macro. interpreter/mk_doc_cache.m: Skip new @nospell macro when building doc_cache.

--- a/scripts/special-matrix/vander.m	Thu Jul 15 12:15:14 2010 +0200
+++ b/scripts/special-matrix/vander.m	Sat Jul 17 19:53:01 2010 -0700
@@ -19,7 +19,8 @@
 ## <http://www.gnu.org/licenses/>.
 
 ## -*- texinfo -*-
-## @deftypefn {Function File} {} vander (@var{c}, @var{n})
+## @deftypefn  {Function File} {} vander (@var{c})
+## @deftypefnx {Function File} {} vander (@var{c}, @var{n})
 ## Return the Vandermonde matrix whose next to last column is @var{c}.
 ## If @var{n} is specified, it determines the number of columns;
 ## otherwise, @var{n} is taken to be equal to the length of @var{c}.