2.4.16

Changed

• Make fs.zipfs._ZipExtFile use the seeking mechanism implemented
  in the Python standard library in Python version 3.7 and later
  (#527).
• Mark fs.zipfs.ReadZipFS as a case-sensitive filesystem
  (#527).
• Optimized moving files between filesystems with syspaths.
  (#523).
• Fixed fs.move.move_file to clean up the copy on the destination in case of errors.
• fs.opener.manage_fs with writeable=True will now raise a ResourceReadOnly
  exception if the managed filesystem is not writeable.
• Marked filesystems wrapped with fs.wrap.WrapReadOnly as read-only.