indices cluster state service should execute as one of the first listeners

its preferable to execute the indices cluster state service as quickly as possible, as one of the first listeners, so it will apply the cluster state to the local state
potentially, it should even execute before it state is "visible" (through the state call), but that's another change...

src/main/java/org/elasticsearch/indices/cluster/IndicesClusterStateService.java

@@ -131,7 +131,7 @@ public class IndicesClusterStateService extends AbstractLifecycleComponent<Indic
 
     @Override
     protected void doStart() throws ElasticSearchException {
-        clusterService.add(this);
+        clusterService.addFirst(this);
     }
 
     @Override