Enable/Disable fast restart plugin via config

Deleted legacy connection & heartbeat classes
Hopefully fixed issues relating to certain web requests throwing recoverable error
Modified Serializer class slightly

SharedLibrary/Exceptions/SerializationException.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SharedLibrary.Exceptions
+{
+    public class SerializeException : Exception
+    {
+        public SerializeException(string msg) : base(msg) { }
+    }
+}