Log Message:
Update to 1.1004:

*  fix: unwritten sparse file regions could get corrupted if the end
   of a write wasn't aligned to cluster boundary. Sparse files are very
   rarely used, most typically by bittorent clients.
* fix: creation of read-only files failed.
* change: free inode calculation was CPU intensive during write activity.
  This could reduce write performance when millions of files are used if
  a file manager or desktop applet regularly polled for disk space usage.
  Now the statfs() system call is constant time.
* change: file creation performance is improved by 40-80%.
* change: smart directory traversal is 20-200% faster for disk based and
  300-600% faster for memory cache based traversals.