[Alpha] MQTT application

[kevin]

@jeremy.akers

Even better here's beta 3b

[Beta] MQTT beta 3d (released 5th July)

Here is the link to beta3d , a hotfix update posted 5th July. Import should work or usual copy raw / paste Please update both app and MQTT Client driver , plus MQTT Text device driver if you use that Any new version announcements I'll add here in the top post. It is a significant update from beta1/beta2 , now implemented as a parent app / child device driver to reduce event usage which is proving troublesome for the upcoming 2.2.0 firmware and updates (as all events are stored and have to …