Make svn-status-update-cmd compatible with svn client v1.6
Make svn-status-update-cmd compatible with svn client v1.6

* trunk/contrib/client-side/emacs/psvn.el:
  (svn-status-update-cmd): Use the flags --accept postpone
     instead of --non-interactive for newer svn clients
     (starting with v1.5)

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion