Add production dependencies

node_modules/es6-iterator/string.js

@@ -0,0 +1,39 @@
+// Thanks @mathiasbynens
+// http://mathiasbynens.be/notes/javascript-unicode#iterating-over-symbols
+
+"use strict";
+
+var setPrototypeOf = require("es5-ext/object/set-prototype-of")
+  , d              = require("d")
+  , Symbol         = require("es6-symbol")
+  , Iterator       = require("./");
+
+var defineProperty = Object.defineProperty, StringIterator;
+
+StringIterator = module.exports = function (str) {
+	if (!(this instanceof StringIterator)) throw new TypeError("Constructor requires 'new'");
+	str = String(str);
+	Iterator.call(this, str);
+	defineProperty(this, "__length__", d("", str.length));
+};
+if (setPrototypeOf) setPrototypeOf(StringIterator, Iterator);
+
+// Internal %ArrayIteratorPrototype% doesn't expose its constructor
+delete StringIterator.prototype.constructor;
+
+StringIterator.prototype = Object.create(Iterator.prototype, {
+	_next: d(function () {
+		if (!this.__list__) return undefined;
+		if (this.__nextIndex__ < this.__length__) return this.__nextIndex__++;
+		this._unBind();
+		return undefined;
+	}),
+	_resolve: d(function (i) {
+		var char = this.__list__[i], code;
+		if (this.__nextIndex__ === this.__length__) return char;
+		code = char.charCodeAt(0);
+		if (code >= 0xd800 && code <= 0xdbff) return char + this.__list__[this.__nextIndex__++];
+		return char;
+	})
+});
+defineProperty(StringIterator.prototype, Symbol.toStringTag, d("c", "String Iterator"));