adapted census metadata to new data format (thanks Carlos Neira)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/microdataes@18 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fixed encoding issue with census metadata

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/microdataes@19 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Attribution to Carlos Neira for his contributions

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/microdataes@20 edb9625f-4e0d-4859-8d74-9fd3b1da38cb