Add support for building COWS for Trusty Tahr when it ships

![stuffed_arabian_tahr-750x5243](https://f.cloud.github.com/assets/344926/2202238/e2122330-98fd-11e3-92ec-ca485ac01efe.jpg)

Trusty is scheduled to ship in April, and we're going to need to start building packages for testing against it.
Also, I alphabetized any lists of codenames I touched, because [pedantry](http://www.merriam-webster.com/dictionary/pedantry).