[Proposal] More detailed logging

When looking through errors it is not very clear where an error occured. For example 404 errors: from exception 'Symfony\Component\HttpKernel\Exception\NotFoundHttpException' in /var/www/html/project/vendor/laravel/framework/src/Illuminate/Routing/RouteCollection.php:140 you don't know on what path that happend (and beginners don't even get that this is just a 404).
Error 404 on GET /my-route: exception 'Symfony\... would make much more sense imho.

(Follow-up on https://github.com/laravel/laravel/pull/2764 for 4.3 branch)