netty: Upgrade to 3.9.0
async-httpclient: Upgrade to 1.8.5 (netty bump still needed)
async-httpclient: Update to netty ~> 3.9.0 (prerelease)
async-httpclient: Reaper/scheduled_executor_service prop is no longer
netty: Release date
async-httpclient: Release date, notes
Merge branch 'netty' into dev
Merge branch 'async-httpclient-1.8.x' into dev