Mike items threshold page


![image](https://cloud.githubusercontent.com/assets/4157103/4481053/8c9dc760-499c-11e4-880e-0efe2edb4b33.png)


<!---
@huboard:{"order":26.5,"milestone_order":87,"custom_state":""}
-->

`undefined` is not an `Array` so the first two checks are not necessary.