fix bug with player not getting updated on disconnect (related to issue #24)

jint version downgraded for better stability (also locked the engine instance as it's not thread safe)
updated readme
remove vpn detection from application configuration as it's now in a seperate plugin
defaulted webfront bind URl to all interfaces
readd the custom say name
added visibility percentage to AC

Plugins/Tests/PluginTests.cs

@@ -0,0 +1,55 @@
+using IW4MAdmin.Application;
+using SharedLibraryCore;
+using SharedLibraryCore.Objects;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Xunit;
+
+namespace Tests
+{
+    [Collection("ManagerCollection")]
+    public class PluginTests
+    {
+        readonly ApplicationManager Manager;
+
+        public PluginTests(ManagerFixture fixture)
+        {
+            Manager = fixture.Manager;
+        }
+
+        [Fact]
+        public void ClientSayObjectionalWordShouldWarn()
+        {
+            var e = new GameEvent()
+            {
+                Type = GameEvent.EventType.Connect,
+                Origin = new Player()
+                {
+                    Name = $"Player1",
+                    NetworkId = 1,
+                    ClientNumber = 1
+                },
+                Owner = Manager.GetServers()[0]
+            };
+
+            Manager.GetEventHandler().AddEvent(e);
+            e.OnProcessed.Wait();
+
+            var client = Manager.GetServers()[0].Players[0];
+
+            e = new GameEvent()
+            {
+                Type = GameEvent.EventType.Say,
+                Origin = client,
+                Data = "nigger",
+                Owner = client.CurrentServer
+            };
+
+            Manager.GetEventHandler().AddEvent(e);
+            e.OnProcessed.Wait();
+
+            Assert.True(client.Warnings == 1, "client wasn't warned for objectional language");
+        }
+    }
+}