New MVC GSOC 2014

https://groups.google.com/forum/#!topic/joomla-dev-cms/AH6piuw2IR0

http://gwilson.org/index.php/new-mvc
can we realy use `$this->setRedirect(JRoute::_('index.php?option=' . $redirectUrl, false), $e->getMessage(), 'warning');`

Or need we use
```
$this->setRedirect(JRoute::_('index.php?option=' . $redirectUrl, false);
$this->app->enqueueMessage($e->getMessage(), 'warning');
```