[RFR] Add menuView

![image](https://cloud.githubusercontent.com/assets/99944/5332763/41b4eec2-7e62-11e4-90d9-917c2ac2bfd6.png)

Closes #113
Can't you just use the [OrderElement](https://github.com/marmelab/ng-admin/blob/master/src/javascripts/ng-admin/Main/component/filter/OrderElement.js) filter ?