macros.
- Define SIZEOF_INT64 to a value that is useable at compile time.
- Got rid of INT64_IS_OFF_T.

AC_CHECK_SIZEOF() macro since it now fully supports cross-
compiling.

- Added descriptions for all config.h variables that had none.
- Changed HAVE_UNSIGNED_CHAR to SIGNED_CHAR_OK.
- Got rid of (the unused) HAVE_SHORT_INO_T.
- Changed version to 2.6.4cvs (long overdue).

- For protocol 29 and above, send the flist time stats to the
  client side (as needed).

- Added two time values to the stats struct.

lines.

  protocol being saved is >= 29.
- Call the new get_rule_prefix() function to figure out the right
  rule prefix.
- Strip out the --filter and -f options from the cached command-line.

  function called get_rule_prefix().
- Don't pass the per-dir .cvsignore rule from -C for protocols < 29.

renamed DEL_FORCE_RECURSE flag.

  delete_before or delete_after or --dry-run will report too
  many deletions.
- Changed DEL_RECURSE to DEL_FORCE_RECURSE.

filter terminology.

no need to refuse "del" by name -- just refusing "delete-during" or
"delete*" is sufficient.

  functionality.
- Got rid of --delete-before.
- Added --delete-during.
- Added a popt alias for --delete-during:  --del.
- Fixed a bug in the generation of the proper --delete options
  for the server.
- Generate an error if the user tries to specify both --delete-during
  and --delete-after.

include/exclude sections, including a little restructuring.

- Changed XFLG_WORDS_ONLY to XFLG_NO_PREFIXES.
- Added XFLG_DEF_EXCLUDE and XFLG_ABS_PATH.
- Added some new MATCHFLG_* values for the new merge-file support.
- Put the "slash_cnt" var (in the exclude_struct) into a union with
  the new megelist pointer.

- Changed the include/exclude calls to work with the new XFLG_* values.

option:
- The special handling for cvs_exclude went away.
- Call push_local_excludes() and pop_local_excludes() instead of fiddling
  with the (no longer present) local_exclude_list var.

for the --filter option.  Some noteworthy changes:
- Added push_local_excludes() and pop_local_excludes() to implement
  the changes needed as we go from directory to directory (this takes
  the place of the old local_exclude_list var that only handled the
  .cvsignore files).  These per-dir excludes are linked into the same
  exclude list as the global excludes.
- The exclude list is transferred as filter rules to an rsync that
  talks protocol 29 or above.  It limits itself to just include/exclude
  rules for older rsyncs.

- Added module_dirlen var.
- Call set_excludes_dir() instead of setting exclude_path_prefix.
- Use the newest XFLG_* options.