config.example.json and requirements.txt not up to date

[AlexandreDoneux]

You have not kept your requirements.txt up to date with the necessary python library (and their versions).

The config example also needs some changes :

• Add a "SQLALCHEMY_DATABASE_URI" default value. ex : "SQLALCHEMY_DATABASE_URI": "mysql://root@127.0.0.1/ictm_teaching". It will allow the user to use the create_db script without having to modify the config file.
• The saml attributes are not correct and make the app unusable. These should be :

  "attributes": {
    "sn": "lastName",
    "email": "email",
    "givenName": "firstName",
    "uid": "uid"
    },

[AlexandreDoneux]

Not sure about the second point, will need to check that.