Added the new option, connectTimeout to the README.
Added the new option, connectTimeout to the README.

jaambee/MQTT.js,jdiamond/MQTT.js,RangerMauve/MQTT.js,bqevin/MQTT.js,mcanthony/MQTT.js,AdySan/MQTT.js,wesley1001/MQTT.js,itavy/MQTT.js