+ /**\r
+ * Creates a new instance of DynamicTreeFolder\r
+ * @param label {String} Label of the folder\r
+ * @param loader {Function} Function that will load the children \r
+ * @param loadingString {String} String to display as a child node during loading\r
+ * @param dragData {Map} Optionnal data describing the "drag" behaviour of the created children.\r
+ */\r