added testing files and reqorked DESCRIPTION and NAMESPACE files

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/reol@172 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
removed old vignette

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/reol@173 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
added new one

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/reol@174 edb9625f-4e0d-4859-8d74-9fd3b1da38cb