Because connectivity is a cached & more specific than login status

- Use the correct API for open channels
- Allow changing the name (title) of normal channels

And other minor JS comment fixes

- Move config from Python to Node
- Also log responses
- Only log request/response object properties in Node, as logging them
in both Node and Python is redundant
- Error-out if Node listen config is missing
- For convenience, make PeerClient copy setting properties from
ClientManager instead of referencing them

Also comment-out its unused code

Also print user pill for easily creating a MemoChat

Fixes -203 error for MemoChats, and automatically retries channel
creation when it fails the first time

WARNING: Seems to always fail with -203 (Invalid body)

Otherwise, bad things can happen if it's missing from config.json

- TalkAPIClient#close is the "logout" command that was wanted
- Direct Chats do share the same ID for every member

because KT doesn't allow them, and errors when the bridge sends them

Might fail on first attempt, though

Also document some custom result types

Needed for backfilling users who have not joined any channels

Add commands to set ID and make it searchable/hidden.
Also don't print stack traces of ProtocolErrors.

Also rename "chat" to "channel" for the Message DB, and make its primary
key include channel IDs