Refine homepage

Add favicon
Add photos
Remove extra vendor

![triangle railsbridge](https://cloud.githubusercontent.com/assets/2317604/5376634/a21b2200-8046-11e4-8544-a7fc507467ba.png)

Don't need the `px` anymore. I think the outputted `top: 0;` is a little cleaner than `top: 0px;`. Might just be my pref.