Fetch email when sign up with github

[shmygol]

Email is mentioned in the code (file backends/contrib/github.py) but doesn't really work

     details = {'username': response.get('login'),
                'email': response.get('email') or ''}

[shmygol]

Hi Matías. Can you tell how soon will it be in the stable version available by pip?

[omab]

@trilliput, I've released v0.7.26 to pypi. I guess you already know this, but to make your /emails endpoint work you need the proper scope (user or user:email) this grants you access to the private email addresses of the user, otherwise the app tries to get the public email address (the .get('email') or '' in the code).

[shmygol]

@omab Sure. Thanks!