3.0 - IntegrationTestCase

Update due to the change of the ENGLISH version.
https://github.com/cakephp/docs/commit/3606ea03b3d482a0ec31f74636fdc82fb733e5e9
https://github.com/cakephp/docs/commit/cbb4cd373499c2aa406b50f16d7b4c2c4ee88665
rendu