clarifications (of weeks ago, "forgotten"..)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nacopula@1142 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
fix gofCopula(*, optim.method=".") bug (!!!)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nacopula@1143 edb9625f-4e0d-4859-8d74-9fd3b1da38cb