To install on a Raspberry Pi follow the instructions here. Install the beta version using apt-get
To Install MQTT
Following the instructions here
wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key
sudo apt-key add mosquitto-repo.gpg.key
cd /etc/apt/sources.list.d/
sudo wget http://repo.mosquitto.org/debian/mosquitto-jessie.list
sudo apt-get update
sudo apt-get install mosquitto
sudo apt-get install mosquitto mosquitto-clients python-mosquitto To stop the MQTT server
sudo /etc/init.d/mosquitto stop
Benn Thomsen 