Added scripted use cases

Minor changes to logging

tools_scripts/bunch_publish_issue12.groovy

@@ -0,0 +1,24 @@
+import org.eclipse.paho.client.mqttv3.MqttClient
+import org.eclipse.paho.client.mqttv3.MqttMessage
+import org.eclipse.paho.client.mqttv3.MqttException
+import org.eclipse.paho.client.mqttv3.MqttDefaultFilePersistence
+
+String tmpDir = System.getProperty("java.io.tmpdir")
+MqttDefaultFilePersistence dataStore = new MqttDefaultFilePersistence(tmpDir)
+
+MqttClient client = new MqttClient("tcp://localhost:1883", "SampleClient", dataStore)
+client.connect()
+println "connected"
+(1..10).each {
+    //MqttMessage message = new MqttMessage("Hello world!! $it".toString().bytes)
+    String s = "Hello World!! $it"
+    MqttMessage message = new MqttMessage(s.bytes)
+    message.qos = 2
+    message.retained = true
+    print "publishing.."
+    client.getTopic("log").publish(message)
+    println "published"
+}
+
+client.disconnect()
+println "disconnected"