Change gae to apache 2 license.

impl/prod/module.go

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
+// Copyright 2016 The LUCI Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
 
 package prod
 
 import (
         "github.com/luci/gae/service/module"
         "golang.org/x/net/context"
         aeModule "google.golang.org/appengine/module"
 )
 
 // useModule adds a Module implementation to context.
@@ skipping 28 matching lines @@
         return aeModule.DefaultVersion(m.aeCtx, module)
 }
 
 func (m modImpl) Start(module, version string) error {
         return aeModule.Start(m.aeCtx, module, version)
 }
 
 func (m modImpl) Stop(module, version string) error {
         return aeModule.Stop(m.aeCtx, module, version)
 }