Wiss update item

New todo/task ?: That it refreshes the item list page after the modal is saved & closed ?

<!---
@huboard:{"order":48.125,"milestone_order":4.875,"custom_state":""}
-->

add propTypes for this at the top of the class. like
```javascript
propTypes: {
  item: PropTypes.shape({
    name: PropTypes.string,
    id: PropTypes.number,
    price: PropTypes.number
  })
}
```
For reference [PropTypes](http://facebook.github.io/react/docs/reusable-components.html)