New btrfs-next

Hello,

Just finished what I was working on so I've caught btrfs-next all up. I had to rebase across the merge with Stefans stuff and I think I may have messed stuff up so please check your patches and make sure they make sense. Also any outstanding patches that I missed please email me directly to let me know (if you cc the list I'll miss it since it will get filtered to the list folder). Thanks!

Josef