fixed some issues

added new tools for creating APs, Beacons, GTP, POI, Fingerprints
fixed selection issue
changed new-element creation
added missing layer parameters

mapview/model/MapLayer.h

@@ -139,6 +139,12 @@ public:
 
 	}
 
+	void changed() {
+		for (MapLayerListener* listener : listeners) {
+			listener->onLayerChanged(this);
+		}
+	}
+
 private:
 
 	void onElemAdded(MapModelElement* e) {