Incorporate new functions ichol and ilu into Octave. * NEWS: Announce new functions. * aspell-octave.en.pws: Add new functions names to custom Octave dictionary. * sparse.txi: Add functions to Octave manual. * __unimplemented__.m: Remove functions from unimplemented list. * lu.cc (Flu), luinc.cc (Fluinc), chol.cc (Fchol): Add seealso links in docstrings. * __ichol__.cc: Wrap long lines to less than 80 chars. Remove trailing whitespace. Don't repeat input validation done in ichol.m for internal functions. Avoid resizing retval vector. * __ilu__.cc: Wrap long lines to less than 80 chars. Remove trailing whitespace. Don't repeat input validation done in ichol.m for internal functions. Avoid resizing retval vector. * ichol.m: Rewrite docstring. Use Octave coding conventions (double quotes hash for comments, ! instead of ~). Replace %!error tests not being run with fail(). * ilu.m: Rewrite docstring. Use Octave coding conventions (double quotes hash for comments, ! instead of ~). Replace %!error tests not being run with fail().

--- a/scripts/help/__unimplemented__.m	Mon Aug 18 12:32:16 2014 +0100
+++ b/scripts/help/__unimplemented__.m	Tue Aug 26 15:27:21 2014 -0700
@@ -650,8 +650,6 @@
   "hgexport",
   "hgsetget",
   "hgtransform",
-  "ichol",
-  "ilu",
   "im2frame",
   "im2java",
   "imapprox",