Updated openstack/openstack
Project: openstack/python-heatclient  94b3e29de56ad8144454c1bad34c7f988e6ca88e
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Copy run_test.sh from heat repo

This allows run_test.sh to run without a working venv, plus all the
other features of heat/run_test.sh

Change-Id: I71d7af8a5442626192c5c8b5dca446a999ff6ede