public function __construct(KernelInterface $kernel)
 {
     parent::__construct($kernel);
     // Boot kernel now
     $kernel->boot();
     // Get container
     $container = $kernel->getContainer();
     // Figure out environment
     $envName = $container->getParameter('kernel.environment');
     $releaseStage = $envName == 'prod' ? 'production' : $envName;
     // Setup Bugsnag to handle our errors
     \Bugsnag::register($container->getParameter('bugsnag.api_key'));
     \Bugsnag::setReleaseStage($releaseStage);
     \Bugsnag::setNotifyReleaseStages($container->getParameter('bugsnag.notify_stages'));
     \Bugsnag::setProjectRoot(realpath($container->getParameter('kernel.root_dir') . '/..'));
     // Attach to support reporting PHP errors
     set_error_handler("\\Bugsnag::errorHandler");
 }