Add CSIT for AAF Cert Service and refactor code

Signed-off-by: Aleksandra Maciaga <aleksandra.maciaga@nokia.com>
Issue-ID: AAF-995
Change-Id: I83678b1f9aa8fad8da1d3244b19d2e20b4512f0d
diff --git a/plans/aaf/certservice/setup.sh b/plans/aaf/certservice/setup.sh
index 461472a..48bf00b 100644
--- a/plans/aaf/certservice/setup.sh
+++ b/plans/aaf/certservice/setup.sh
@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-AAFCERT_IMAGE=nexus3.onap.org:10001/onap/org.onap.aaf.certservice.aaf-certservice-api:1.0.0
+AAFCERT_IMAGE=nexus3.onap.org:10001/onap/org.onap.aaf.certservice.aaf-certservice-api:latest
 
 echo AAFCERT_IMAGE=${AAFCERT_IMAGE}