Coder Day v1.0 Site

### v1.0 Updates:
* Add Events > Coder Day to header navigation
* Emphasize RSVP button
* Fix MLK photo to top & center

![coder day of service by codemontage 1](https://f.cloud.github.com/assets/226228/1543465/1fda0162-4d57-11e3-8e4a-c281892d2031.png)