Fix #1255: correction of NodeStats host property

Author: gmarz

src/Nest/Domain/Stats/NodeStats.cs

@@ -10,12 +10,16 @@ public class NodeStats
 	{
 		[JsonProperty("timestamp")]
 		public long Timestamp { get; internal set; }
+
 		[JsonProperty("name")]
 		public string Name { get; internal set; }
+		
 		[JsonProperty("transport_address")]
 		public string TransportAddress { get; internal set; }
-		[JsonProperty("hostname")]
-		public string Hostname { get; internal set; }
+
+		// TODO: Rename to Host in 2.0
+		[JsonProperty("host")]
+		public string Hostname { get; internal set; } 
 
 		[JsonProperty("indices")]
 		public NodeStatsIndexes Indices { get; internal set; }

src/Tests/Nest.Tests.Integration/Cluster/NodeTests.cs

@@ -39,8 +39,9 @@ public void NodeStats()
 			var r = this.Client.NodesStats();
 			Assert.True(r.IsValid);
 			Assert.IsNotNull(r.Nodes);
-			var node = r.Nodes.Values.First();
 
+			var node = r.Nodes.Values.First();
+			Assert.IsNotNull(node.Hostname);
 			Assert.IsNotNull(node.Indices);
 			Assert.IsNotNull(node.FileSystem);
 			Assert.IsNotNull(node.OS);