Bug#706415: Fixed upstream, please cherry-pick/update trees

[Hajo Möller]

Dear Maintainers,

as of May 2015 grub2 upstream includes patches by Toomas Soome to
support OpenZFS pools with feature flags, which fixes booting off ZFS
rpools. The relevant upstream logs:
http://git.savannah.gnu.org/cgit/grub.git/log/include/grub/zfs
http://git.savannah.gnu.org/cgit/grub.git/log/grub-core/fs/zfs

As I do not know whether Toomas' patches depend on intermediate commits
I propose to cherry-pick all new commits to "include/grub/zfs" and
"grub-core/fs/zfs". Even if the patches do not depend on previous
commits it would be nice to include them as fixes to memory leaks and
other issues.

-- 
Regards,
Hajo Möller