Bump to v3.0.0.

internal/MapCache.js

@@ -0,0 +1,22 @@
+define(['./mapDelete', './mapGet', './mapHas', './mapSet'], function(mapDelete, mapGet, mapHas, mapSet) {
+
+  /**
+   * Creates a cache object to store key/value pairs.
+   *
+   * @private
+   * @static
+   * @name Cache
+   * @memberOf _.memoize
+   */
+  function MapCache() {
+    this.__data__ = {};
+  }
+
+  // Add functions to the `Map` cache.
+  MapCache.prototype['delete'] = mapDelete;
+  MapCache.prototype.get = mapGet;
+  MapCache.prototype.has = mapHas;
+  MapCache.prototype.set = mapSet;
+
+  return MapCache;
+});