Scaffold/Scaffold — pull request #144 by nathggns (2013-08-11 11:55:01+00:00)
Title: Error class can miss handlers in some situations.

In some situations, like this for example.

```php
$error->attach('ExceptionRouting', function($e) {
// ...
});
$error->attach('Exception', ['Class', 'Method']);

// Later on
throw new ExceptionRouting('Cannot GET /');
```

Only the latter will be called.