Bump to v3.0.0.

internal/metaMap.js

@@ -0,0 +1,10 @@
+define(['../lang/isNative', './root'], function(isNative, root) {
+
+  /** Native method references. */
+  var WeakMap = isNative(WeakMap = root.WeakMap) && WeakMap;
+
+  /** Used to store function metadata. */
+  var metaMap = WeakMap && new WeakMap;
+
+  return metaMap;
+});