* Call callback when end called on unconnected client
Closes#2108
* Revert a bit of the change
* Use readyState because pending doesn't exist in node 8.x
* Update packages/pg/lib/client.js
use bring your own promise
Co-Authored-By: Charmander <~@charmander.me>
Co-authored-by: Charmander <~@charmander.me>