Updated openstack/openstack
Project: openstack/sahara  3081753f5f7969942879ea4be9e85260ee35a7ac

Added ability to specify security group for node group

Extended API to support list of security groups in node groups and
node group templates. Changed db schema and provisioning engines (both direct
and heat) accordingly.

Partially implements: blueprint cluster-secgroups

Change-Id: I49d3551f6987552ff6398e8c87e22388f914f287