Added logging on fatal crashes

Moved logs to a seperate Logs folder

src/Artemis.UI/Stylet/NinjectBootstrapper.cs

@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Windows.Threading;
 using Ninject;
+using Serilog;
 using Stylet;
 
 namespace Artemis.UI.Stylet
@@ -63,5 +65,13 @@ namespace Artemis.UI.Stylet
             if (Kernel != null)
                 Kernel.Dispose();
         }
+
+        protected override void OnUnhandledException(DispatcherUnhandledExceptionEventArgs e)
+        {
+            var logger = Kernel.Get<ILogger>();
+            logger.Fatal(e.Exception, "Fatal exception, shutting down.");
+
+            base.OnUnhandledException(e);
+        }
     }
 }