added whole system from ola4doc

sys/node_modules/es5-ext/iterable/is.js

@@ -0,0 +1,10 @@
+'use strict';
+
+var iteratorSymbol = require('es6-symbol').iterator
+  , isArrayLike    = require('../object/is-array-like');
+
+module.exports = function (x) {
+	if (x == null) return false;
+	if (typeof x[iteratorSymbol] === 'function') return true;
+	return isArrayLike(x);
+};