Squashed commit of the Cinder support for Nova (DCB-48)

commit fe668b30c5e3697e1a90b1ba32152d35623d51a1
Author: Sergey Yudin <syudin@mirantis.com>
Date:   Wed Jan 16 16:18:55 2013 +0000

    trying to cherry pick cinder support from pfs

commit 6f3ad0a372e2212175de24dad1c9917b70eb9891
Author: Alexander Gordeev <agordeev@mirantis.com>
Date:   Tue Oct 23 17:58:28 2012 +0400

    Add simplest Cinder support

    Conflicts:

    	chef/cookbooks/nova/recipes/volume.rb
    	chef/data_bags/crowbar/bc-template-nova.json
    	crowbar_framework/app/models/nova_service.rb

    trying to cherry-pick cinder support from pfs