• Fixed recognition of NTFS hardlinks. They behave differently than
  standard Unix hardlinks and this could result in SnapRAID reporting
  internal inconsistency errors for detecting links to the same file
  with different metadata attributes.
• More efficient 'pool' command that updates only the links
  that need to be updated. This ensures that no change is
  done, avoiding to trigger a directory rescan of other programs.
• In Linux use by default the advise "discard" mode instead of "flush".
  This avoids to swap-out the other process memory, leaving the system
  more responsive.
• Changed the fallocate() use to work better with Btrfs with parity disks.
• Changed the --test-io-stats screen to print the file name in process
  for each disk.