derPdfWrtParamsExplicitCopula() used by almost all derPdfWrtParams() methods:
Fix when the dimension is too large {gave error instead of NA + warning}.


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nacopula@1123 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
finally done: TODO about .ac.*Names; correspondingly expand getAcop()

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nacopula@1124 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
cosmetic

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nacopula@1125 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
fitMvdc() -> margpnames() would fail in parameter name construction

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nacopula@1126 edb9625f-4e0d-4859-8d74-9fd3b1da38cb