doc: start explaining configuration

doc: explain features

feat: implement Inline for key-value Pairs

doc: start api.md

chore: update liter & rusqlite dependencies

style: sort dependencies

test: add test to serialize and deserialize all commands as JSON

doc: fix typo

chore: bump version

doc: update README

feat: add NodeReq::Disable

feat: only allow disabled peers to sync ops

feat: trigger shutdown when receiving disable op

feat: broadcast writes to the key-value store

feat; generalize Node::leave to Node::broadcast

feat: add method for the Node to trigger daemon shutdown

A little hacky but arguably reasonable for the Node to have this
ability.

fix: pong pings

Broke this in fb2e4bd6790fa1209eb96c1f4ccaea39b8c37f7d, should probably
add a test for it.

feat: fail loading the Node if it's disabled

fix: make Store::read_config return Ok(None) when row doesn't exist

feat: implement Invitation::into_bytes