fixed memory leak

TunnelGateway.cpp

@@ -10,6 +10,12 @@ namespace i2p
 {
 namespace tunnel
 {
+	TunnelGatewayBuffer::~TunnelGatewayBuffer ()
+	{
+		for (auto it: m_TunnelDataMsgs)
+			DeleteI2NPMessage (it);
+	}	
+	
 	void TunnelGatewayBuffer::PutI2NPMsg (const TunnelMessageBlock& block)
 	{
 		bool messageCreated = false;

TunnelGateway.h

@@ -15,6 +15,7 @@ namespace tunnel
 		public:
 			TunnelGatewayBuffer (uint32_t tunnelID): m_TunnelID (tunnelID), 
 				m_CurrentTunnelDataMsg (nullptr), m_RemainingSize (0) {};
+			~TunnelGatewayBuffer ();
 			void PutI2NPMsg (const TunnelMessageBlock& block);	
 			const std::vector<I2NPMessage *>& GetTunnelDataMsgs () const { return m_TunnelDataMsgs; };
 			void ClearTunnelDataMsgs ();