fixed centroids naming

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bayesr@913 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
R2BayesX.R reloaded

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bayesr@914 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
small touch ups

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bayesr@915 edb9625f-4e0d-4859-8d74-9fd3b1da38cb