/** AJAX IMAGE EDITING **/
 public function rotate()
 {
     $this->use_layout = false;
     if (Request::get('id') && Request::get('angle')) {
         $this->model = new WildfireFile(Request::get('id'));
         $location = PUBLIC_DIR . $this->model->url();
         File::rotate_image($location, $location, Request::get('angle'));
         File::clear_image_cache($id);
     } else {
         exit;
     }
 }