Update version numbers

build.gradle

@@ -5,7 +5,7 @@ apply plugin: 'osgi'
 
 group = 'com.fazecast'
 archivesBaseName = 'jSerialComm'
-version = '2.5.3'
+version = '2.5.4'
 ext.moduleName = 'com.fazecast.jSerialComm'
 
 assert hasProperty('java6Home'): "Set the property 'java6Home' in your gradle.properties file pointing to a Java 6 JDK installation"

src/test/java/com/fazecast/jSerialComm/SerialPortTest.java

@@ -186,6 +186,7 @@ public class SerialPortTest
 			public void serialEvent(SerialPortEvent event)
 			{
 				SerialPort comPort = event.getSerialPort();
+				System.out.println("Available: " + comPort.bytesAvailable() + " bytes.");
 				byte[] newData = new byte[comPort.bytesAvailable()];
 				int numRead = comPort.readBytes(newData, newData.length);
 				System.out.println("Read " + numRead + " bytes.");