Add Rust to every post title & some links

Posts now have titles like 'Stability as a Deliverable - The Rust Programming Language Blog', and I added links to rust-lang.org & the guide added to the bottom of each page.

On the front page:

![brlo-footer-archive](https://cloud.githubusercontent.com/assets/1203825/4870128/cd40c926-615b-11e4-96a9-829689455f65.png)

On a post:

![brlo-footer-post](https://cloud.githubusercontent.com/assets/1203825/4870129/cd477622-615b-11e4-8dfa-1466c11a4550.png)