It allows running all the testcases even if tempest-smoke fails [1].
It should stop after healthcheck if it conforms with Functest and
OPNFV rules (Release management).
[1] http://artifacts.opnfv.org/airship/airship-opnfv-functest-healthcheck-hunter-tempest_smoke-run-2/results/tempest_smoke/tempest-report.html
Change-Id: Iede70b249a7039274723fbe88adee9cfa342db1f
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>