ZFS NFSv4 style ACL support

[tridge at samba.org]

Aknin,

 > Comments? Anyone already working on the issue?

I added support for NFSv4 ACLs using the Linux API to Samba4 a few
weeks ago. I skipped over some of the mapping details at the time and
haven't gone back and fixed them yet, but it does work reasonably
well.

See this patch for the approach:

  http://build.samba.org/?function=diff;tree=samba4;date=1161423972;author=tridge;revision=19441

Cheers, Tridge