Unit test fixes

src/Participants/ParticipantUDP.cs

@@ -365,7 +365,7 @@ namespace RoboidControl {
             Console.WriteLine($"Participant: Process NameMsg [{msg.networkId}/{msg.thingId}] {msg.nameLength} {msg.name}");
 #endif
 
-            Thing thing = sender.Get(msg.networkId, msg.thingId);
+            Thing thing = sender.Get(msg.thingId);
             if (thing != null)
                 thing.name = msg.name;
         }
@@ -375,7 +375,7 @@ namespace RoboidControl {
             Console.WriteLine($"Participant: Process ModelUrlMsg [{msg.networkId}/{msg.thingId}] {msg.urlLength} {msg.url}");
 #endif
 
-            Thing thing = sender.Get(msg.networkId, msg.thingId);
+            Thing thing = sender.Get(msg.thingId);
             if (thing != null)
                 thing.modelUrl = msg.url;
         }
@@ -384,7 +384,7 @@ namespace RoboidControl {
 #if DEBUG            
             Console.WriteLine($"Participant: Process PoseMsg [{msg.networkId}/{msg.thingId}] {msg.poseType}");
 #endif            
-            Thing thing = sender.Get(msg.networkId, msg.thingId);
+            Thing thing = sender.Get(msg.thingId);
             if (thing != null) {
                 if ((msg.poseType & PoseMsg.Pose_Position) != 0)
                     thing.position = msg.position;
@@ -405,7 +405,7 @@ namespace RoboidControl {
 #if DEBUG
             Console.WriteLine($"Participant: Process BinaryMsg [{msg.networkId}/{msg.thingId}] {msg.dataLength}");
 #endif
-            Thing thing = sender.Get(msg.networkId, msg.thingId);
+            Thing thing = sender.Get(msg.thingId);
             thing?.ProcessBinary(msg.data);
         }
 
@@ -420,10 +420,12 @@ namespace RoboidControl {
 #if DEBUG
             Console.WriteLine($"Participant: Process Destroy Msg [{msg.networkId}/{msg.thingId}]");
 #endif            
-            Thing thing = sender.Get(msg.networkId, msg.thingId);
+            Thing thing = sender.Get(msg.thingId);
             if (thing != null)
                 this.Remove(thing);
+#if UNITY_5_3_OR_NEWER
             thing.component.core = null;
+#endif
         }
 
         private void ForwardMessage(IMessage msg) {

src/Participants/SiteServer.cs

@@ -105,7 +105,7 @@ namespace RoboidControl {
         protected override void Process(Participant sender, ThingMsg msg) {
             Console.WriteLine($"SiteServer: Process thing [{msg.networkId}/{msg.thingId}] {msg.thingType} {msg.parentId} ");
 
-            Thing thing = sender.Get(msg.networkId, msg.thingId);
+            Thing thing = sender.Get(msg.thingId);
             if (thing == null) {
                 switch (msg.thingType) {
                     case (byte)Thing.Type.TouchSensor:
@@ -118,7 +118,7 @@ namespace RoboidControl {
                 thing = new Thing(sender, msg.networkId, msg.thingId, msg.thingType);
 
             if (msg.parentId != 0) {
-                thing.parent = sender.Get(msg.networkId, msg.parentId);
+                thing.parent = sender.Get(msg.parentId);
                 if (thing.parent == null)
                     Console.WriteLine($"Could not find parent [{msg.networkId}/{msg.parentId}]");
             }

src/Thing.cs

@@ -357,6 +357,8 @@ namespace RoboidControl {
         public static ulong GetTimeMs() {
 #if UNITY_5_3_OR_NEWER
             return (ulong)(UnityEngine.Time.time * 1000);
+#else  
+            return TimeManager.GetCurrentTimeMilliseconds();
 #endif
         }
 
@@ -365,7 +367,7 @@ namespace RoboidControl {
         /// </summary>
         /// <param name="recursively">When true, this will Update the descendants recursively</param>
         public void Update(bool recursively = false) {
-            Update(TimeManager.GetCurrentTimeMilliseconds(), recursively);
+            Update(GetTimeMs(), recursively);
         }
         // #endif
         /// <summary>