Clarified that you MUST define the `certificate` parameter to enable TLS connections to the MQTT server. This was not clear to me and was fighting with getting the right PEM/CRT file setup as commections were failing. When I then selected 'auto' it worked as designed. It would be better if there was an 'enable_tls' config parameter that would enable it and default to 'auto', but that;s a code change.
* Sets front matter defaults
* Removes default front matter from section templates/pages
* Removes default front matter from addon pages
* Removes default front matter from integration pages
* Removes default front matter from posts
* Removes default front matter from docs pages
* Removes default front matter from other pages
* Fixes blog category pages
