Fixes for multiple handlers

Core/GeneralHandler.cs

@@ -28,9 +28,9 @@ namespace Kruzya.TelegramBot.Core
         }
 
         [HandleEverything]
+        [Priority(-10)]
         public async Task Listener()
         {
-            Console.WriteLine("handle");
             foreach (var message in new Message[] {RawUpdate.Message, RawUpdate.EditedMessage, RawUpdate.ChannelPost, RawUpdate.EditedChannelPost})
             {
                 if (message == null)
@@ -38,10 +38,8 @@ namespace Kruzya.TelegramBot.Core
                     continue;
                 }
 
-                return new Task();
+                await VerifyChatPair(message);
             }
-            
-            throw new ArgumentException();
         }
 
         public async Task VerifyChatPair(Message message)