a lot!!! of changes

added main menu
added debug display
many debug widgets for plotting live data
worked on android live sensors
added offline-data sensor feeding
some dummy data sensors
worked on the map display
added ui debug for grid-points, particles and weights
added a cool dude to display the estimation
added real filtering based on the Indoor components
c++11 fixes for android compilation
online and offline filtering support
new resampling technique for testing
map loading via dialog

sensors/dummy/RandomSensor.h

@@ -0,0 +1,56 @@
+#ifndef RANDOMSENSOR_H
+#define RANDOMSENSOR_H
+
+#include <thread>
+#include <Indoor/data/Timestamp.h>
+#include <Indoor/Assertions.h>
+
+template <typename Element, typename BaseClass> class RandomSensor : public BaseClass {
+
+private:
+
+	std::thread thread;
+	bool running = false;
+	Timestamp interval;
+
+public:
+
+	RandomSensor(const Timestamp interval) : interval(interval) {
+		;
+	}
+
+	void start() override {
+		Assert::isFalse(running, "sensor allready running!");
+		running = true;
+		thread = std::thread(&RandomSensor::run, this);
+	}
+
+	void stop() override {
+		Assert::isTrue(running, "sensor not yet running!");
+		running = false;
+		thread.join();
+	}
+
+protected:
+
+	/** subclasses must provide a random entry here */
+	virtual Element getRandomEntry() = 0;
+
+private:
+
+	void run() {
+
+		while(running) {
+
+			const Element rnd = getRandomEntry();
+			Sensor<Element>::informListeners(rnd);
+
+			std::this_thread::sleep_for(std::chrono::milliseconds(interval.ms()));
+
+		}
+
+	}
+
+};
+
+#endif // RANDOMSENSOR_H