added constraints to parncpt2

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pi0@340 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
minor changes in NAMESPACE

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pi0@341 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
minor changes in DESCRIPTION

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pi0@342 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
minor changes in DESCRIPTION

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/pi0@343 edb9625f-4e0d-4859-8d74-9fd3b1da38cb