Added the underscore node_module.

node_modules/underscore/amd/matcher.js

@@ -0,0 +1,14 @@
+define(['./extendOwn', './isMatch'], function (extendOwn, isMatch) {
+
+  // Returns a predicate for checking whether an object has a given set of
+  // `key:value` pairs.
+  function matcher(attrs) {
+    attrs = extendOwn({}, attrs);
+    return function(obj) {
+      return isMatch(obj, attrs);
+    };
+  }
+
+  return matcher;
+
+});