Updated openstack/openstack
Project: openstack/heat  a3f8c810b1f8cf1faa9c72cf9c7c9bc2c965d850

Extract group functions into a utility module.

This patch extracts group checking functions into a dedicated module so
that resource implementations are simplified.  The module could later be
used by the autoscaling engine as well.

Change-Id: I99cdd8c9e8fe377e6923ab047a9c2ef08d1defad
partial-blueprint: reorg-asg-code
partial-blueprint: as-lib