cosmetic chg to trigger a rebuild on R-Forge

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/fda@752 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
as.POSIXct1970:  remove ref to Ecdat

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/fda@753 edb9625f-4e0d-4859-8d74-9fd3b1da38cb