Bump to v4.8.0.

_matchesStrictComparable.js

@@ -0,0 +1,26 @@
+define([], function() {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * A specialized version of `matchesProperty` for source values suitable
+   * for strict equality comparisons, i.e. `===`.
+   *
+   * @private
+   * @param {string} key The key of the property to get.
+   * @param {*} srcValue The value to match.
+   * @returns {Function} Returns the new function.
+   */
+  function matchesStrictComparable(key, srcValue) {
+    return function(object) {
+      if (object == null) {
+        return false;
+      }
+      return object[key] === srcValue &&
+        (srcValue !== undefined || (key in Object(object)));
+    };
+  }
+
+  return matchesStrictComparable;
+});