When a MUC starts out hidden, we first need to join in order to find out
whether we're affiliated before we can know whether we should enable RAI
or join the MUC as usual.
- `allow_user_trust_override`
- `clear_cache_on_logout`
The `persistent_store` setting can now also be set to `sessionStorage`
The `trusted` settings was in effect playing the role of two separate settings
and implicitly affecting a third ('persistent_store').
By breaking it up, we make things more explicit and allow for new
configurations. For example, clearing the cache on logout, while using
some kind of persistent store.
Still lacks inter-tab communication to update state across tabs, i.e.
when sending a 1-on-1 message in one tab, it doesn't appear in another,
because that information is not available via the websocket connection.
- Create a new `Connection` class that extends Strophe.Connection and
move related code from `converse-core.js` into this class.
- Store the session in localStorage when using a worker
- Move XEP-0156 code to connection.js
This allows us to initialize the connection without needing to know the
domain.
If a message comes in after joining the MUC but before the MAM messages
have been fetched, then converse-mam will query for MAM messages newer
than that message, causing an empty history (except for that one message).
