public function send()
 {
     $data = Input::all();
     $rules = ['full_name' => ['required', 'min:3', 'max:35'], 'email' => ['required', 'email'], 'content' => ['required', 'min:10', 'max:600']];
     $validator = Validator::make($data, $rules);
     if ($validator->fails()) {
         return Alert::formError($validator);
     }
     Mailing::contact($data);
     return Alert::flash(Lang::get('contact.sent'), 'success');
 }