BugFix: Termination by ctl + C

Update: API mode is configurable

Signed-off-by: tomoaki <tomoaki@tomy-tech.com>

MQTTSNGateway/src/linux/Threading.h

@@ -131,7 +131,7 @@ public:
 	static bool equals(pthread_t*, pthread_t*);
 	virtual void initialize(int argc, char** argv);
 	void stopProcess(void);
-	void testThreadCancel(void);
+	void cancel(void);
 private:
 	pthread_t _threadID;
 	Semaphore* _stopProcessEvent;