[Merge] lp:~mathieu-tl/ubuntu/natty/isc-dhcp/dhcpv6 into lp:ubuntu/isc-dhcp

[Mathieu Trudel-Lapierre]

The same issue was reported in Debian as bdo 611825; but some of the changes (e.g. chowning leases files, apparmor profile update) still would need Ubuntu-specific changes.
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https://code.launchpad.net/~mathieu-tl/ubuntu/natty/isc-dhcp/dhcpv6/+merge/48247
Your team Ubuntu Sponsors Team is requested to review the proposed merge of lp:~mathieu-tl/ubuntu/natty/isc-dhcp/dhcpv6 into lp:ubuntu/isc-dhcp.