Mosquitto related changes (updated config and comments).#546

Merged

MattBrittan merged 2 commits intoeclipse-paho:masterfrom

ChIoT-Tech:master

Oct 7, 2021

Commits on Oct 7, 2021

Update mosquitto.conf to use v2+ format (port and allow_duplicate_messages are depreciated).
MattBrittan
committed
Add warning re manually creating ClientOptions (due to changes in Mosquitto 2.0.12 connections with Keepalive=0 are rejected by default).
MattBrittan
committed