add horizontal DNS autoscaler

Change-Id: I199bf205cb2a3a3436b8e395098f27725dc75d05
diff --git a/tests/pillar/master_cluster.sls b/tests/pillar/master_cluster.sls
index af37946..d9b326f 100644
--- a/tests/pillar/master_cluster.sls
+++ b/tests/pillar/master_cluster.sls
@@ -11,6 +11,7 @@
         enabled: true
         replicas: 1
         server: 10.254.0.10
+        autoscaler: True
       heapster_influxdb:
         enabled: true
         public_ip: 185.22.97.132