Merged ^/branches/dev back into trunk through r223

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pcalg@224 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Remove files with ending .old from /man directory

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pcalg@225 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Added JMLR publication to list of citations

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pcalg@226 edb9625f-4e0d-4859-8d74-9fd3b1da38cb