Handle close_notify in ConnectionPoolHandler (#1841)

* Close on completion close event

* Add handling to OriginResponseReceiver

* Use a new status category

* Fix index

* Add unit test for ids being unique

* 504 is probably better than 500

* Switch to debug logging

* Use 502 for close_notify

wire new listener spec through channel deps

add a listener spec and wire for channelDeps

Add new retry policy adjustment method (#1824)

* Add new retry policy adjustment method for when we have a response object

* Fix test

* Actually fix test

* Break out to separate method

* Fix tests

Upgrade to Netty 4.1.113

Extract a method to allow easier injecting of custom shutdown behavior (

#1809)

Only start read timeout handler on success (#1793)

Upgrade to latest netty (#1789)

* Bump to latest netty

* genlock

Bump version

Fix case of MaxRequestsPerConnection (#1785)