Added the underscore node_module.

node_modules/underscore/amd/functions.js

@@ -0,0 +1,14 @@
+define(['./isFunction'], function (isFunction) {
+
+  // Return a sorted list of the function names available on the object.
+  function functions(obj) {
+    var names = [];
+    for (var key in obj) {
+      if (isFunction(obj[key])) names.push(key);
+    }
+    return names.sort();
+  }
+
+  return functions;
+
+});