refactor(routing): Using Aura.Router for routing.

Routing file is defined by the app.
Assumed to be under: setup/coufig/routes.yaml
php yaml extension is required in order to read this file.
Yes, I should update the documentation of this method.
I also need to complete the comment that I started putting there, which currently says: "Change locale for anonymous user, and". I never ended this sentence.
Do you by chance know why the cookie details is being set here? (lines 240, 241). I wasn't happy with this code, but left it to make sure I'm not breaking anything.