Adds event logging, code cleanup and some decoder issue resolution.

src/dsp/psk/CQPSKDemodulator.java

@@ -84,6 +84,12 @@ public class CQPSKDemodulator implements Instrumentable, ComplexSampleListener
 	{
 	}
 	
+	public void dispose()
+	{
+		mSymbolListener = null;
+		mFrequencyChangeListener = null;
+	}
+	
 	public void setSymbolListener( Listener<Complex> listener )
 	{
 		mSymbolListener = listener;

src/dsp/psk/CQPSKDemodulator2.java

@@ -127,6 +127,7 @@ public class CQPSKDemodulator2 implements Instrumentable, ComplexSampleListener,
 	 * Constrains timing error to +/- the maximum value and corrects any
 	 * floating point invalid numbers
 	 */
+	@SuppressWarnings("unused")
 	private float normalize( float error, float maximum )
 	{
 		if( Float.isNaN( error ) )