support mqtt auth and version

Author: magcode

README.md

@@ -13,8 +13,9 @@ A configuration file `sunricher.properties` is needed and must be located beside
 
 ``` 
 mqttServer=<protocol and host of MQTT broker>
-mqttUsername=<mqtt username>
-mqttPassword=<mqtt password>
+mqttUsername=<mqtt username, can be empty>
+mqttPassword=<mqtt password, can be empty>
+mqttVersion=<mqtt version, can be empty, defaults to 3>
 logLevel=<log level, e.g. ERROR,WARN,INFO,DEBUG,TRACE>
 ledHost=<host of sunricher device>
 topic=<mqtt topic>

pom.xml

@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.magcode</groupId>
 	<artifactId>sunricher-mqtt</artifactId>
-	<version>2.0.1</version>
+	<version>2.0.2</version>
 	<repositories>
 		<repository>
 			<id>Eclipse Paho Repo</id>