Wiss event list tappisserie

![image](https://cloud.githubusercontent.com/assets/8709555/4988035/3849bd6a-692a-11e4-9129-8600bd1739aa.png)


<!---
@huboard:{"order":83.125,"milestone_order":3,"custom_state":""}
-->

use `MKAlertTrigger.showAlert(__("errors::error", {context: err.context}));` before return