column titles fixed, removed inst package

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bertin@94 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
removed Rnw from doc -- is a vignette


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bertin@95 edb9625f-4e0d-4859-8d74-9fd3b1da38cb