Feature 53 infrastructure

We can now use Foreman to launch and control the Resque tasks. We'll need a Cap-or-equivalent task that does something like ```sudo foreman export upstart /etc/init && sudo restart resque``` on deploy. To change things like e.g. number of workers, edit the line ```concurrency: worker=4,scheduler=1,web=1``` in the ```.foreman``` file.

More notes in the README.