+ typings for extend including tests

extend/extend.d.ts

@@ -0,0 +1,9 @@
+// Type definitions for Node.js v0.12.0
+// Project: http://nodejs.org/
+// Definitions by: Stefan Steinhart <https://github.com/reppners>
+// Definitions: https://github.com/borisyankov/DefinitelyType
+declare module "extend" {
+
+    function extend(deepOrObject:boolean | Object, ...objectN: Object[]): any;
+    export = extend;
+}