Objects to mmscore_regression() were value copied, although they were parsed as reference. Changed this for now in the way that arguments are in mematrix form and not the EIGEN form.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/genabel@1629 edb9625f-4e0d-4859-8d74-9fd3b1da38cb