Docs and style in lib/list

lib/list.js

@@ -1,6 +1,14 @@
 
 module.exports = List;
 
+/**
+ * List class provides functionality of nested collection
+ *
+ * @param {Array} data - array of items.
+ * @param {Crap} type - array with some type information? TODO: rework this API.
+ * @param {AbstractClass} parent - owner of list.
+ * @constructor
+ */
 function List(data, type, parent) {
     var list = this;