V3 to dos

[bellrichm]

List of small things that need to be done before release

• Update v2 to v3 upgrade wiki page
  https://github.com/bellrichm/WeeWX-MQTTSubscribe/wiki/Upgrade-Guide#upgrading-to-v3-from-v2
• Update understanding log wiki page
• Update debugging wiki page
• Review install, sudo not necessary for v5 because run as weewx user?
• v5 non sudo with v3
• V5 non sudo with v2
• Log paho.mqtt.__version__
• Ability to log trace when running in simulator mode
• Run simulator without MQTTSubscribeDriver and MQTTSubscribeService sections
• Change log_file to logging_file (code)
• Change log_file to logging_file (wiki)
• Add a faq wiki page
  https://github.com/bellrichm/WeeWX-MQTTSubscribe/wiki/FAQ
• Add a faq about 4.x support starting at (need to research)
• Add a faq about 5.x support starting at 5.x due to running as weewx user
• Remove manual install instructions from MQTTSubscribe.py
• Wiki page for new Parser mode
  https://github.com/bellrichm/WeeWX-MQTTSubscribe/wiki/Parser-mode
• Parser change --log-level to --logging-level
• Parser change --log-file to --logging-file
• Rename log_validation_errors. stop_on_validation_errors?
• Review upgrade section of readme
• Review reconfigure section of readme
• Add protocol option to wiki
• Add clean_start to wiki
• Create release/release notes
• Create a final version of the example config
• Update release number in code