nvme-cli fabrics man pages updates V2

[Keith Busch]

On Thu, Nov 17, 2016 at 05:26:24PM +0100, Christoph Hellwig wrote:
> This completes the remaining missing pieces for documenting the
> fabrics commands.
> 
> Changes since V1:
>  - updated to latest master, doh

Thanks, applied them all. I did make a few minor changes to remove the older
place holder entries in the doc that you've fixed. Looks correct to me,
but let me know if there's any problem.