Latest GoLang

Installing the latest version of GoLang on ubuntu is a little obscure...
http://blog.labix.org/2013/06/15/in-flight-deb-packages-of-go

This will install the latest release version; the default ubuntu one is 1.2.1

Also, now Docker runs the test suite as part of a build step, so it won't build if things are broken
Good call!