The javascript is very inconsistent between pages. I'm trying to
start using a consistent pattern where the api call is kept in a
separate function from the ones that buttons and input boxes
talk to.
It makes sense that anon sessions are still sessions. So @give_token
will ensure that every request has a session. Logged in conditionals
move from 'if session' to 'if session.user'.
New frontends folder will hold all front-end interfaces for etiquette. Existing flask site moved here and refers to itself as a package with external launcher. etiquette_site renamed to etiquette_flask