Updated openstack/openstack
Project: openstack/heat  945d824e629962a0f07a99442dfce6274b8c2227
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Resources for Rackspace Auto Scale

This introduces Rackspace::AutoScale::Group, ScalingPolicy,
and WebHook resources, to support the Rackspace Auto Scale
product.

Change-Id: I38b8f368d833b7475f260b8eb7afcc3a2a3770e7