adding some doc

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@236 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
warning license

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@237 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
another bug with I3

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@238 edb9625f-4e0d-4859-8d74-9fd3b1da38cb