fixed issue with "empty" elements [walls, stairs, elevators] during tool selection

minor ui changes

mapview/2D/tools/ToolNewElement.h

@@ -113,7 +113,8 @@ protected:
 
 	/** finish creating new elements */
 	void disableMe() {
-		finalizeCurrent();
+		//finalizeCurrent();
+		deleteCurrent();
 		delete this;			// see dtor!
 	}