Make presets a hidden feature for now

src/Application/Modes/ProjectionMappingMode.cpp

@@ -285,9 +285,11 @@ void ProjectionMappingMode::onKeyPressed(Application * app, ofKeyEventArgs & arg
 		 }
 		 break;
 	
+	/*
 	 case 'n': // Set next preset
 		 app->getSurfaceManager()->setNextPreset();
 		 break;
+	*/
 		 
 	 default:
 		 break;