Repo create and push automatically

@danmaclean This PR adds the [clockwork gem](https://rubygems.org/gems/clockwork) to run a job to create the data repo and push it to GitHub. It's setup to run every 2 minutes so it'll be in sync. If you think that's too frequent, we can change it by altering lib/clock.rb.

I tried to use the whatever gem, but there were some issues using it with rvm and clockwork worked out better.