adding cleaning and starclean

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@243 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
test

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@244 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
test2

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@245 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
back to the future

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@246 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
constraint validation for B

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@247 edb9625f-4e0d-4859-8d74-9fd3b1da38cb