Style the login page


I styled the login page.  The sign up page looks pretty good to now.  I'm sure that we'll tweak it quite a bit still, but it looks decent in my opinion.

![screen shot 2014-01-07 at 9 29 40 am](https://f.cloud.github.com/assets/319091/1860800/f3f03b70-77b8-11e3-9aaa-245a912eb94e.png)