title: Laravel handling exception
body: <p>I'm just jump into laravel, this is my first project with. </p>
  
  <p>Now i'm trying to add new exception to handler stack, but for sorry it's not working and i don't know why.</p>
  
  <p>here is my exception class</p>
  
  <pre><code>namespace Lib\Modules\Users\Exceptions;
  
  use Lib\Abstracts\AbstractException;
  
  class ConnotCreateUserException extends AbstractException {
  
  }
  </code></pre>
  
  <p>Here is my abstract </p>
  
  <pre><code>namespace Lib\Abstracts;
  
  class AbstractException extends \Exception {
  
  }
  </code></pre>
  
  <p>and here is my error registration inside app/start/global.php</p>
  
  <pre><code>App::error(function(Exception $exception, $code)
  {
      Log::error($exception);
  });
  
  App::error(function(Lib\Modules\Users\Exceptions\ConnotCreateUserException $exception){
     return 'Sorry! Something is wrong with this account!';
  });
  </code></pre>
  
  <p>when i throw the exception, i got blank page. but i'm sure it's handled as type of "\Exception" exception.</p>
  
  <p>Thanks in advance</p>