Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/27700

Log:
commit c47da5a22e4827bcd6223fd6560ef4542d263fd0
Author: Michael Still <mikal at stillhq.com>
Date:   Fri Apr 26 19:13:02 2013 +1000

    One DNS manager is enough.
    
    Previously there was a distinction between a "fixed IP DNS manager"
    and a "floating IP DNS manager". Remove this distinction, and have
    one manager manage everything.
    
    DocImpact: flag names have changed and functionality is simplified.
    
    Progresses blueprint dynamic-dns.
    
    Change-Id: Id737ea1cea3b53bf92240d561cc48a897240267a