Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/28404

Log:
commit d945693822431863f6c238d01122de7b92743332
Author: Julia Varlamova <jvarlamova at mirantis.com>
Date:   Thu Apr 25 16:05:04 2013 +0400

    Add GroupEvenSpreadWeigher for nova scheduler
    
    GroupEvenSpreadWeigher allows to spread instances from definite
    group between all accessible hosts. It is necessary to pass a
    scheduler hint, using group as key and name of the group as value,
    when booting an instance.
    
    Add tests for this weigher.
    
    DocImpact
    
    Change-Id: Ieca90f9bf4a84159724ff5479131b53af8d34eed