Change gae to apache 2 license.

service/datastore/context_test.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 (
         "testing"
 
         "github.com/luci/gae/service/info"
         . "github.com/smartystreets/goconvey/convey"
         "golang.org/x/net/context"
 )
@@ skipping 42 matching lines @@
                                 curs, err := Get(c).DecodeCursor("pants")
                                 So(err, ShouldBeNil)
                                 So(curs.String(), ShouldEqual, "pants")
                         })
                 })
                 Convey("adding zero filters does nothing", func() {
                         So(AddRawFilters(c), ShouldEqual, c)
                 })
         })
 }