updated sensors and filter to current code version

removed KLib stuff
added new activity
filter is uncommand!
at the moment, the app is not able to load new maps and breaks using old maps

sensors/SensorFactory.h

@@ -30,7 +30,7 @@
 
 #include "StepSensor.h"
 #include "TurnSensor.h"
-//#include "ActivitySensor.h"
+#include "ActivitySensor.h"
 
 
 class SensorFactory {
@@ -90,11 +90,11 @@ public:
 		return turns;
 	}
 
-//	/** get the Activity sensor */
-//	ActivitySensor& getActivity() {
-//		static ActivitySensor activity(getBarometer(), getAccelerometer());
-//		return activity;
-//	}
+    /** get the Activity sensor */
+    ActivitySensor& getActivity() {
+        static ActivitySensor activity(getBarometer(), getAccelerometer());
+        return activity;
+    }
 
 };