Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into staging

slirp updates

# gpg: Signature made Thu 31 Mar 2016 00:08:38 BST using RSA key ID FB6B2F1D
# gpg: Good signature from "Samuel Thibault <[email protected]>"
# gpg:                 aka "Samuel Thibault <[email protected]>"
# gpg:                 aka "Samuel Thibault <[email protected]>"
# gpg:                 aka "Samuel Thibault <[email protected]>"
# gpg:                 aka "Samuel Thibault <[email protected]>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 900C B024 B679 31D4 0F82  304B D017 8C76 7D06 9EE6
#      Subkey fingerprint: F632 74CD C630 0873 CB3D  29D9 E3E5 1CE8 FB6B 2F1D

* remotes/thibault/tags/samuel-thibault:
  Fix ipv6 options according to documentation

Signed-off-by: Peter Maydell <[email protected]>