Description
CSD02:
MQTT Version 3.1.1
Committee Specification Draft 02
10 April 2014
http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/csd02/mqtt-v3.1.1-csd02.doc
http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/csd02/mqtt-v3.1.1-csd02.html
http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/csd02/mqtt-v3.1.1-csd02.pdf