net fsmo show|transfer|seize

[Nadezhda Ivanova]

Hi Team,
I pushed the new net fsmo command, which can be used to cause a server to transfer a role to itself or seize it. Implementation is based on some research with ntdsutil tool. Tested against win2008, but we have some implementation is Samba 4 until it can transfer roles. I'll test it some more, my environment got busted after I reverted a snapshot. 
Jelmer, I would appreciate it if you do a review when you have some time:

http://git.samba.org/?p=samba.git;a=commit;h=dffb5ad2bf75fc0bcb69dce5cde52c8a1ea9c4f9

Regards,
Nadya