Adding Procfile for heroku configuration.

Signed-off-by: Nico Magni <nicomagni@wolox.com.ar>
Merge branch 'refs/heads/magni-petit'
Adding configuration files for heroku.

Signed-off-by: Nico Magni <nicomagni@wolox.com.ar>
moving files to the root to prepare to heroku.

Signed-off-by: Nico Magni <nicomagni@wolox.com.ar>
Merge branch 'master' of github.com:nicomagni/chess-backend