FIX: fixed some issues with subscribung and unsubscribing from topics

include/WHISPER/InternalUDPService.hpp

@@ -51,7 +51,6 @@ namespace WHISPER {
             std::list<std::shared_ptr<localClient>> localclients;
             
 
-            std::atomic<bool> stopReceiving = false;
 
 
             /**
@@ -76,7 +75,7 @@ namespace WHISPER {
 
         public:
             InternalUDPService(std::uint32_t id, SourceType owndevicetype,std::uint16_t port, std::string destinationAdress, std::string myAdress);
-
+            ~InternalUDPService();