[Findit] Renaming version property in versioned_model.py to avoid conflicts with base_analysis.py

appengine/findit/model/test/versioned_config_test.py

 # 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.
 
 from google.appengine.ext import ndb
 from google.appengine.api import users
 from testing_utils import testing
 
 from model.versioned_config import VersionedConfig
 
@@ skipping 20 matching lines @@
 
   def testUpdateWhenChanged(self):
     self._CreateFirstVersion()
     config = _Config.Get()
     self.assertIsNotNone(config)
     self.assertTrue(config.Update(users.User(email='admin@chromium.org'), True,
                                   a=2))
 
     config = _Config.Get()
     self.assertIsNotNone(config)
-    self.assertEqual(2, config.version)
+    self.assertEqual(2, config.version_number)
     self.assertEqual(2, config.a)
 
   def testNotUpdateWhenNotChanged(self):
     self._CreateFirstVersion()
     config = _Config.Get()
     self.assertIsNotNone(config)
     self.assertFalse(config.Update(users.User(email='admin@chromium.org'), True,
                                    a=1))
 
     config = _Config.Get()
     self.assertIsNotNone(config)
-    self.assertEqual(1, config.version)
+    self.assertEqual(1, config.version_number)
     self.assertEqual(1, config.a)