Change gae to apache 2 license.

impl/prod/context.go

-// Copyright 2015 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 2015 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 (
         "fmt"
         "net/http"
         "net/http/cookiejar"
         "net/url"
         "strings"
 
@@ skipping 144 matching lines @@
                 }
         }
 
         aeCtx, err := remote_api.NewRemoteContext(host, client)
         if err != nil {
                 return
         }
         *inOutCtx = setupAECtx(*inOutCtx, aeCtx)
         return nil
 }