We need to override everything on the prod server, and having everything in one object
makes it clear what is keycloak specific (we could also prefix everything...).

With the new ability to log in without redirecting to keycloak and reloading the page
we can now try to login on start every time.

Instead of remembering the login state in the session storage we just ask keycloak in an iframe
on start. To better describe this new behaviour rename the attribute from remember-login to try-login.

We keep the login state in the session storage and force a login in case the user was
logged in before.

This means a page refresh will try to restore the login state (which usually should mean
that it just flashes becasue of redirects). And new visitors get the logged out state by default.

Bekerle, Patrizio authored 5 years ago and Reiter, Christoph committed 4 years ago

# Conflicts:
#	vpu-auth.js