Make sure that it is always possible to sign in / sign out 

Regardless of the viewport size when the navigation menu collapses it should pull in the authentication options. In larger views it will be an orange button in the upper right corner. In condensed views it should appear below search in the dropdown.

![desktop](https://f.cloud.github.com/assets/1493179/304600/d69528a6-9640-11e2-998d-967d239da224.png)
![tablet](https://f.cloud.github.com/assets/1493179/304602/d6aa2526-9640-11e2-8d8b-61c29a7f227a.png)
![phone](https://f.cloud.github.com/assets/1493179/304601/d6a0a942-9640-11e2-88da-d4e7b3d2cf6a.png)