added new param-editing to APs and Beacons

changed drawing for better debuging
changed layer editing
option to add and delete layers
some minor changes

mapview/model/MapLayer.h

@@ -78,6 +78,8 @@ public:
 	/** remove the given element from the elements list */
 	void removeElement(const MapModelElement* elem) { elements.erase(std::remove(elements.begin(), elements.end(), elem), elements.end()); }
 
+	/** remove the given sublayer from this layer */
+	void removeSublayer(const MapLayer* layer) { sublayers.erase(std::remove(sublayers.begin(), sublayers.end(), layer), sublayers.end()); }
 
 	/** is this layer currently visible? */
 	bool isVisible() const {return visible;}
@@ -101,7 +103,7 @@ public:
 		}
 	}
 
-protected:
+public: