Updates pull request from Roman Tsypuk to convert the build system from

ant to gradle.  Removes linux and windows application launch scripts and
produces an executable jar with all resources included.

src/main/java/io/github/dsheirer/audio/AudioPacketRateCounter.java

@@ -0,0 +1,55 @@
+package io.github.dsheirer.audio;
+
+import io.github.dsheirer.sample.Listener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AudioPacketRateCounter implements Listener<AudioPacket>
+{
+	private final static Logger mLog = 
+			LoggerFactory.getLogger( AudioPacketRateCounter.class );
+
+	private Listener<AudioPacket> mListener;
+	private long mCount;
+	private long mStartTime = -1;
+	
+	private String mName;
+	
+	public AudioPacketRateCounter()
+	{
+		mName = "UNNAMED";
+	}
+	
+	public AudioPacketRateCounter( String name )
+	{
+		mName = name;
+	}
+	
+	@Override
+	public void receive( AudioPacket packet )
+	{
+		if( mStartTime == -1 )
+		{
+			mStartTime = System.currentTimeMillis();
+		}
+		
+		mCount += packet.getAudioBuffer().getSamples().length;
+
+		long elapsed = System.currentTimeMillis() - mStartTime;
+		
+		if( elapsed != 0 )
+		{
+			mLog.debug( "[" + mName + "] Audio Rate: " + ( mCount / elapsed ) + " kHz" );
+		}
+		
+		if( mListener != null )
+		{
+			mListener.receive( packet );
+		}
+	}
+	
+	public void setListener( Listener<AudioPacket> listener )
+	{
+		mListener = listener;
+	}
+}