[Feature request] Supporting MQTT

[dev-strom]

It would be nice, if DoorPi could trigger some action at MQTT.
Background: all events in my home automation environment are triggert throug MQTT. It would be nice if I could include triggers wich, for example switch on the light at my door, if someone push the doorbell button.

My suggestion: a new configuration section

[MQTT]
host = <server name or ip address>
port = <server port>
user = <mqtt user name>
password = <mqtt user password>

And than a new action like mailto etc. which publishs a given topic and content to the mqtt server. This action could be named simple mqtt.