Deploy anchor links, interface scripts, and Mike's post

This deploys @mbland's Snippets post to the live site, along with the new interface scripts (not relevant to the server), and anchor links on the homepage.

The Snippets post can be seen on staging at https://staging.18f.us/2014/12/17/snippets/. Screenshot:

![snippets](https://cloud.githubusercontent.com/assets/4592/5475234/43654304-85e5-11e4-95ed-44ae3e561b6e.png)