Add a possibility to deploy Kibana version 5

Change-Id: Ib526b41934e043b73af4c3180787e9cedbd00778
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 3ca67fc..561bec0 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -3,10 +3,12 @@
 classes:
 - service.kibana.support
 parameters:
+  _param:
+    kibana_version: 4
   kibana:
     server:
       enabled: true
-      version: latest
+      version: ${_param:kibana_version}
       source:
         engine: file
       bind: