Add tech dashboard

This PR introduces the lovely tech team dashboard as you can see below:

![localhost 3030 tech](https://f.cloud.github.com/assets/109774/975921/4102dcc2-0682-11e3-9171-e9efc4e6e9d8.png)

Everything is handled locally via Dashing jobs at the moment, but I think the long term vision is to start saving stuff in Mongo using [theodi/open-orgn-services](http://github.com/theodi/open-orgn-services). The initial load of the Github stats takes a while, but once it's in it should churn away in the background quite happily.

Oh, and sorry about some of the cassettes, they're MASSIVE.