betareg added

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dcr@1059 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
QPAD citations

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dcr@1060 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
version date

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dcr@1061 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
refs and comma separated lists

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