- Fixed mandatory reading problems

- Update fixes for 2.6.31

- Fixed fd duplicate problem with locks
- Add sources for 2.6.31

- Fix build with {clear,drop,inc}_nlink() functions.
- Add bugfixes from upstream for 2.6.30

Free nativeFileSystem field before allocating a new one
commit 6b5600f321f51cd409d05f475128d40fc7241a2d

Fix regression with O_EXCL creates and optimize away lookup
commit 9d33821d65cdad2af0461f3a6268125cc8a33052