@ModuleOption("the password to use when connecting to the broker")
	public void setPassword(String password) {
		this.password = password;
	}
Factors out common options about configuring a connection to an MQTT broker.

@author Eric Bottard
@author Gary Russell
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/modules/metadata/MqttConnectionMixin.java