Added the underscore node_module.

node_modules/underscore/amd/bind.js

@@ -0,0 +1,15 @@
+define(['./restArguments', './isFunction', './_executeBound'], function (restArguments, isFunction, _executeBound) {
+
+  // Create a function bound to a given object (assigning `this`, and arguments,
+  // optionally).
+  var bind = restArguments(function(func, context, args) {
+    if (!isFunction(func)) throw new TypeError('Bind must be called on a function');
+    var bound = restArguments(function(callArgs) {
+      return _executeBound(func, bound, context, this, args.concat(callArgs));
+    });
+    return bound;
+  });
+
+  return bind;
+
+});