fix stat issue with concurrent threads

fix potential lost penalty if server does not response to kick request
make sure that broadcast only shows one custom say name
add unit tests

Tests/ApplicationTests/Mocks/EventHandler.cs

@@ -0,0 +1,16 @@
+using SharedLibraryCore;
+using SharedLibraryCore.Interfaces;
+using System.Collections.Generic;
+
+namespace ApplicationTests.Mocks
+{
+    class MockEventHandler : IEventHandler
+    {
+        public IList<GameEvent> Events = new List<GameEvent>();
+
+        public void AddEvent(GameEvent gameEvent)
+        {
+            Events.Add(gameEvent);
+        }
+    }
+}