$app->group('/{lang}', function() use($app){
$app->group('/backend', function() use ($app){
$app->get('', 'BackendController:index');
$app->get('/pages', 'BackendController:pages');
$app->get('/newPage', 'BackendController:newPage');
$app->post('/newPage', 'BackendController:newPageAdd');
});
$app->get('', 'SiteController:index');
});