Change gae to apache 2 license.

service/datastore/finalized_query.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 datastore
 
 import (
         "bytes"
         "fmt"
         "sort"
         "strings"
 )
 
@@ skipping 316 matching lines @@
         if q.ineqFiltProp == "__key__" {
                 if q.ineqFiltLowSet && !q.ineqFiltLow.Value().(*Key).Valid(false, aid, ns) {
                         return ErrInvalidKey
                 }
                 if q.ineqFiltHighSet && !q.ineqFiltHigh.Value().(*Key).Valid(false, aid, ns) {
                         return ErrInvalidKey
                 }
         }
         return nil
 }