fixed ordering problem in plotmap(), added Munich rent data

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bayesr@872 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
testing Munich rent example

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bayesr@873 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
small edit in add.partial()

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bayesr@874 edb9625f-4e0d-4859-8d74-9fd3b1da38cb