various tweaks ...



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bbmle@120 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
slice2D/splom.slice tweaks



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bbmle@121 edb9625f-4e0d-4859-8d74-9fd3b1da38cb