add.simpleDimnames() gets  'named' option


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/matrix@3016 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
fix R-forge bug #2556 -- names(dimnames(<sp>[i,j]))

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/matrix@3017 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fix remaining parts of R-(3.2.0) compatible behavior of matrix products (%*%, [t]crossprod) -- including previous bug of wrong m %*% v in one case

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/matrix@3018 edb9625f-4e0d-4859-8d74-9fd3b1da38cb