Added the underscore node_module.

node_modules/underscore/amd/contains.js

@@ -0,0 +1,12 @@
+define(['./_isArrayLike', './values', './indexOf'], function (_isArrayLike, values, indexOf) {
+
+  // Determine if the array or object contains a given item (using `===`).
+  function contains(obj, item, fromIndex, guard) {
+    if (!_isArrayLike(obj)) obj = values(obj);
+    if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+    return indexOf(obj, item, fromIndex) >= 0;
+  }
+
+  return contains;
+
+});