Api

first draft of PUT requests for tournaments/players
The player properties (id, name, etc) should be in the JSON body of the request and be parsed by reqparse.

Take a look at this tutorial: http://blog.miguelgrinberg.com/post/designing-a-restful-api-using-flask-restful
As well as the flask-restful docs: https://flask-restful.readthedocs.org/en/0.3.0/quickstart.html