Fix constructors of ZenDiscovery's sub classes

Closes elastic#133

Author: tlrx

src/main/java/org/elasticsearch/discovery/ec2/Ec2Discovery.java

@@ -23,6 +23,7 @@
 import org.elasticsearch.cluster.ClusterName;
 import org.elasticsearch.cluster.ClusterService;
 import org.elasticsearch.cluster.node.DiscoveryNodeService;
+import org.elasticsearch.cluster.settings.DynamicSettings;
 import org.elasticsearch.common.collect.ImmutableList;
 import org.elasticsearch.common.inject.Inject;
 import org.elasticsearch.common.settings.Settings;
@@ -45,9 +46,9 @@ public class Ec2Discovery extends ZenDiscovery {
     public Ec2Discovery(Settings settings, ClusterName clusterName, ThreadPool threadPool, TransportService transportService,
                         ClusterService clusterService, NodeSettingsService nodeSettingsService, ZenPingService pingService,
                         DiscoveryNodeService discoveryNodeService, AwsEc2Service ec2Service, DiscoverySettings discoverySettings,
-                        ElectMasterService electMasterService) {
+                        ElectMasterService electMasterService, DynamicSettings dynamicSettings) {
         super(settings, clusterName, threadPool, transportService, clusterService, nodeSettingsService,
-                discoveryNodeService, pingService, electMasterService, discoverySettings);
+                discoveryNodeService, pingService, electMasterService, discoverySettings, dynamicSettings);
         if (settings.getAsBoolean("cloud.enabled", true)) {
             ImmutableList<? extends ZenPing> zenPings = pingService.zenPings();
             UnicastZenPing unicastZenPing = null;