some fixes [multithreading,..]

needed interface changes [new options]
logger for android
wifi-ap-optimization
new test-cases

misc/log/LoggerComposite.h

@@ -0,0 +1,30 @@
+#ifndef LOGGERCOMPOSITE_H
+#define LOGGERCOMPOSITE_H
+
+
+#include "Logger.h"
+#include <vector>
+
+class LoggerComposite : public Logger {
+
+private:
+
+	/** all contained loggers */
+	std::vector<Logger*> loggers;
+
+public:
+
+	/** add a new logger to this composite */
+	void addLogger(Logger* l) {
+		loggers.push_back(l);
+	}
+
+	virtual void add(const std::string& str, const bool nl) override {
+		for (Logger* l : loggers) {l->add(str, nl);}
+	}
+
+};
+
+
+
+#endif // LOGGERCOMPOSITE_H