[Fix Issue #1554] Set Max Width of Name Field

By setting the `max-width` of `.navbar > .name` we should be able to prevent issue #1554 from occurring and going beyond the bounds of the body.

Before we can see it extends beyond the body of the page (which on mobile causes it to break)
![screen shot 2014-10-07 at 10 01 54 am](https://cloud.githubusercontent.com/assets/947110/4543369/959b6c86-4e2a-11e4-967c-39d24438dbb1.png)


After the change we prevent this overflow from occurring:
![screen shot 2014-10-07 at 10 01 35 am](https://cloud.githubusercontent.com/assets/947110/4543371/9f441cce-4e2a-11e4-9533-4358dcb452e0.png)