- Remove unused source file fs/ntfs/attraops.c.
- Remove show_inodes mount option(s), thus dropping support for
  displaying of short file names.
- Remove deprecated mount option posix.
- Restore show_sys_files mount option.
- Add new mount option case_sensitive, to determine if the driver treats
  file names as case sensitive or not. If case sensitive, create file names
  in the POSIX namespace. Otherwise create file names in the WIN32
  namespace. By default, or when case_sensitive is set to FALSE, files
  remain accessible via their short file name, if it exists.
- Add additional argument to ntfs_lookup_inode_by_name() in which we
  return information about the matching file name if the case is not
  matching or the match is a short file name. See comments above the
  function definition for details.