NEW_DIR()                Interactive change-directory.
     Param                  None
     Returns                Logical - .t. if directory was changed
     Usage                  IF new_dir()
     Example                if new_dir()
                                ?"New directory is:"
                                ?Curdir()
                            endif
     Notes                  Will accept directory typed in, or will
                            present a point&shoot by calling DIRPIK()
   ---