Change gae to apache 2 license.

service/datastore/serialize/invertible.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 serialize
 
 import (
         "bytes"
 )
 
 // Buffer is the interface which corresponds to the subset of *bytes.Buffer
 // that this package requires.
 type Buffer interface {
@@ skipping 95 matching lines @@
         ret, err := ib.Buffer.ReadByte()
         if ib.invert {
                 ret = ret ^ 0xFF
         }
         return ret, err
 }
 
 func (ib *invertibleBuffer) SetInvert(inverted bool) {
         ib.invert = inverted
 }