to indicate that it's private and to differentiate it from the outer "global"
converse object.

Specifically involving querying by the 'xmlns' attribute, where I've had issues
in the past.

after allowing chatting with pending/requesting contacts

Also add `/subject` as alias to `/topic`

Attempt reconnection on authfail when credentials_url and auto_reconnect are set.

Let debounced reconnection happen on the leading edge.

Also update pluggable.js to a version that works with lodash.

- Add a test case.
- Don't allow passing of `attrs` to `chats.open`. Not sure yet of the
  implications of this.

Resolves #760.

https://greenkeeper.io/

https://greenkeeper.io/

Not when the connection failed due to other reasons (like wrong credentials).

when `auto_reconnect` is set to true.