aufs3 and aufs4 GIT release (linux-v4.8-rc6)

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

o bugfix
- aufs-util, auplink, handling the non-aufs mountpoint, reported by
Torok Edwin, fixed by Henrik Ahlgren and forwared by Jan Luca Naumann.
- aufs-util, make a default errno for error_at_ilne(3)
- aufs-util, respect -v option even mtab is procfs

o news
- aufs-util.git supports musl-libc, reported and suggested by Natanael
Copa.

o misc
- aufs-util, update the forgotten copyright and libau minor version.
- aufs-util, FHSM, return at once when EPERM instead of loop


J. R. Okajima

----------------------------------------
- aufs4-linux.git
none

- aufs4-standalone.git
none, just update the patches in aufs4.x-rcN branch to follow
linux-v4.8-rc6.

- aufs-util.git
bugfix, auplink, handling the non-aufs mountpoint
bugfix, make a default errno for error_at_ilne(3)
update the forgotten copyright and libau minor version
refine the error msg from regcmp()
return at once when EPERM instead of loop
bugfix, respect -v option even mtab is procfs
tiny, spacing after the period
musl-libc 0/4, extract au_nftw() fot two versions
musl-libc 1/4, extract error_at_line() for two versions
musl-libc 2/4, au_decode_mntpnt()
musl-libc 3/4, separate libau.so individually
musl-libc 4/4, minor, just to be compilable
portable version test
now the development base version is aufs4.1
rename lib2 to extlib

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