mvpart was archived; release 0.8-3

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@660 255f4249-2263-4417-b1ea-8498779e27a7
typos

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@661 255f4249-2263-4417-b1ea-8498779e27a7
0.8-3

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@662 255f4249-2263-4417-b1ea-8498779e27a7