Getting ready for Teatro

Hello Yupe!

I am developer at [teatro.io](http://teatro.io) and I want to offer you our service — it automatically creates a staging server for each opened pull request. It's free for open source projects.

To use Teatro you need:
— sign in using Github account on http://teatro.io
— add your project

— database for yupe is `teatro` (already created, using a mysql db by default)
— user / password for mysql `teatro/teatro`

I added a simple config to run yupe on teatro in this PR.
Feel free to ask anything