new RcmdrMisc package; corresponding code etc. removed from RcmdrDevel. John

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rcmdr@514 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
updated identify3d() from car to Identify3d(), etc. John

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rcmdr@515 edb9625f-4e0d-4859-8d74-9fd3b1da38cb