* Add createServer, ping on createClient, update README
* fix createClient keepalive
* resort readme, fix node 14
* Enforce auth on server connections, fix close/connect issues
* add type definitions, update readme, docs
* Wait some time before closing connection, update docs
* wait for server close in tests, fix race bug
* export a ping api
* Rename api.md to API.md
* add ping example
