Updated openstack/openstack
Project: openstack/heat  afc838e17638a5f4df1cfc8b647ca520811b5657
null
Replace hardcoded schema strings in autoscaling.py

A number of hardcoded strings referring to schema members were
still being used in autoscaling.py. They've been coverted to
constants defined as class attributes.

Change-Id: I194f4d840b7565488dddbcd411fe8ba4a06b4059