IE10+ List items are navigable by "f" form control key

**Reported by james.curd.razorfish on 2014-06-18 00:09**
NVDA in IE10 and 11 will navigate to lists while hitting the "f" key.

```
<ul>
    <li>List item 1</li>
    <li>List item 2</li>
    <li>List item 3</li>
</ul>

<input type="text">
```
