Better support for nginx ingress

• Support JSON representation of session status (ce3628c)
• Return session status headers with JSON responses (694123f)
• Support a new special case for return_to in nginx configuration (22db48f)

Add Apache 2.0 License

This patch release simply adds the Apache 2.0 License. There are no functional changes.

0.6.2: Use docker hub again.

Github Packages is not yet ready for prime-time. As of right now there seems
to be no way to have public images.

0.6.1

Change docker repo to docker.pkg.github.com.

latest

Change docker repo to docker.pkg.github.com.

0.6.0

Run via gunicorn. Configure logging to use gunicorn default.

docker-base-layer

Run via gunicorn. Configure logging to use gunicorn default.

0.5.0: Use python:3-slim.

Adjust ProxyFix to adapt to Werkzeug 0.15.

0.4.0: Properly handle protected endpoints with query strings.

To facilitate nginx configuration, we've changed the redirect from
https://$http_host/saml/login?url=$request_uri to
https://$http_host/saml/login$request_uri. I erroneously thought $request_uri
would be encoded, but it wasn't. The old way created a potentially invalid uri.
The new way preserves the original url that we want to come back to.

0.3.0

Make session lifetime 12 hours. Make root page return 200.