committing revert to 152

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/uwgarp@154 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
CAPM vignette update + minor code M

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/uwgarp@155 edb9625f-4e0d-4859-8d74-9fd3b1da38cb