aufs3 and aufs4 GIT release (linux-v4.8-rc3)

[s***@users.sourceforge.net]

o bugfix
- dirperm1 and whiteout, reported and fixed by Dave Mills.
- aufs-util.git, possible security bugfix, full path for auplink_frw.

o news
- All aufs3 versions and aufs4.0 are not maintained anymore. The new
development base version is aufs4.1.

o misc.
- shrinkable krealloc
- for linux-v4.8-rcN, unlock NFS inode temporary before read()

aufs4.x-rcN branch in this release is for linux-v4.8-rc3, and is still
testing.


J. R. Okajima

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- aufs4-linux.git#aufs4.1..aufs4.7 branch
aufs: bugfix, dirperm1 and whiteout
aufs: minor, shrinkable krealloc

- aufs4-linux.git#aufs4.x-rcN branch
Addition to above,
aufs: for linux-v4.8-rcN,

- aufs-util.git
possible security bugfix, full path for auplink_frw

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