test added: use_seed required if cluster mode used


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/easyabc@401 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
changelog


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/easyabc@402 edb9625f-4e0d-4859-8d74-9fd3b1da38cb