lists can't overlap in inc_recurse mode.

- Added --no-i-d as a shorter no-implied-dirs.
- Changing to --no-i-r instead of --no-ir.

get_local_name() rather than using the (now removed)
new_root_dir global.

  with the right attributes and getting omitted from the output.
- Got rid of the directory touch-up pass in inc_recurse mode again.
  This requires us to create any missing directories early, but we
  still report on what happened in the normal course of the transfer
  sequence.
- Use the FLAG_DIR_CREATED flag instead of (the removed)
  new_root_dir global.

  paths, we only scan one of them in inc_recurse mode.
- When unduplicating directories in inc_recurse mode, dump the
  ealier directory if it is implied.

in inc_recurse mode, we must keep the last dir of the duplicates.

so that the FreeBSD machine in the compile farm can test.

- Improve the chances of the generator finding a match for a
  hard-link file in inc_recurse mode.

error-code that cannot be sent successfully.

- Don't use hlink_flist in hard_link_check().
- Made the prev_name logic in hard_link_check() better.
- Added an "ndx" arg to the finish_hard_link() call.  Also, set the
  prev value of any prior entries to the first finished item (which
  ensures that any item that follows a re-shuffled item (which was
  waiting for a transferred file to finish) can find the FIRST+DONE
  item.

- Tweaking the calling syntax for glob_expand().

clear out an old popt context before starting a new one.

  source transer, complain and exit.  This can help to find option
  problems were an arg to an option turns into a local-source arg,
  and the real remote-source arg will now get rejected rather than
  attempting to find a file with a colon in its name.
- We now support the ability to specify more than one remote arg using
  the ":FILENAME" idiom for additional remote filenames.
- If the --protect-args (-s) option was specified, we send just the
  "--server -s" options to the remote rsync when it is starting, and
  then the real args are sent over the socket.

- Renamed read_filesfrom_line() to read_line() and added args to allow
  the caller to control how it works.
- Added a new function, read_args(), that reads args from a file
  descriptor (using read_line()) and expands any wildcards in them.
  This function has relocated daemon code (from clientserver.c) and
  is also used by the new --protect-args (-s) option.  The new code
  also got rid of an extra strdup() that wasn't needed.

  number of remote args.
- We now exchange a "VERSION.SUBVERSION" value in the initial @RSYNCD
  message.  This is backward compatible with pre-protocol 30 rsyncs,
  and fixes a problem where rsync daemons weren't checking if they were
  speaking a compatible pre-release protocol.
- Moved the protocol-handling code (which was in two places) into a new
  function:  exchange_protocols().
- Protocol 30 now sends/receives the daemon args using NULLs as a separator
  rather than a newline.
- Moved the arg-reading code into a new function in io.c:  read_args().

other esoteric needs.

one instance inside the copy hierarchy.  (Used to fail with protocol 29
or --no-ir.)

file-entry values affected by HLINK_BUMP() stay put.