- Fixed a problem in send_deflated_token() where the data we are
  compressing might not finish processing in one call.

- Fixed a potential overflow in the map_size calculation.

- Improved the layout and error-checking of the code that
  calculates the block-size and the number of checksum bits.

- Renamed the local block_size arg to blk_size (to avoid
  confusion with the global block_size variable).

- Simplified some of the code, removing a useless memcpy().

an empty string and ignore it when it is.

exit situation was properly forcing the io_timeout value down to 30
seconds, but failing to set the select_timeout value.

the default select_timeout value.

are not enabled, we need to also send --no-relative.

symlinks that are being copied, even if they point nowhere.

options in the rsyncd.conf manpage.

an --address option when starting the daemon.

if it reports failure.

- Added support for multiple --*-dest options.

  but it copies the identical files instead of hard-linking them.
- Added support for multiple --*-dest options.

- Renamed FNAMECMP_CMPDEST to FNAMECMP_BASIS_DIR.