Mejorar pantalla de error conexión

[tranfuga25s]

Mejorar la pantalla de conexión diciendo que la base de datos no se encuentra funcionando correctamente.

Missing Database Connection
Error: SQLSTATE[HY000] [2002] No route to host requires a database connection

Error: Confirm you have created the file : app/Config/database.php.

Notice: If you want to customize this error message, create app/View/Errors/missing_connection.ctp.

Stack Trace
CORE/Cake/Model/Datasource/DboSource.php line 245 → Mysql->connect()
CORE/Cake/Model/ConnectionManager.php line 101 → DboSource->__construct(array)
CORE/Cake/Model/Model.php line 3417 → ConnectionManager::getDataSource(string)
CORE/Cake/Model/Model.php line 1083 → Model->setDataSource(string)
CORE/Cake/Model/Model.php line 3443 → Model->setSource(string)
CORE/Cake/Model/Model.php line 2698 → Model->getDataSource()
APP/Controller/ClientesController.php line 28 → Model->find(string, array)
[internal function] → ClientesController->inicio()
CORE/Cake/Controller/Controller.php line 485 → ReflectionMethod->invokeArgs(ClientesController, array)
CORE/Cake/Routing/Dispatcher.php line 103 → Controller->invokeAction(CakeRequest)
CORE/Cake/Routing/Dispatcher.php line 85 → Dispatcher->_invoke(ClientesController, CakeRequest, CakeResponse)
APP/webroot/index.php line 96 → Dispatcher->dispatch(CakeRequest, CakeResponse)