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

src/source/tuner/frequency/FrequencyController.java

@@ -151,7 +151,8 @@ public class FrequencyController
      * from the tuned frequency.
      * @param tunedFrequency
      */
-    private long getCorrectedFrequency( long tunedFrequency )
+    @SuppressWarnings("unused")
+	private long getCorrectedFrequency( long tunedFrequency )
     {
 		return (long)( (double)tunedFrequency / 
 				( 1.0 - ( mFrequencyCorrection / 1000000.0 ) ) );

src/source/tuner/hackrf/HackRFTunerController.java

@@ -56,7 +56,6 @@ import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Iterator;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.LinkedTransferQueue;
 import java.util.concurrent.ScheduledFuture;

src/source/tuner/rtl/RTL2832TunerController.java

@@ -27,7 +27,6 @@ import java.nio.charset.Charset;
 import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Iterator;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.LinkedTransferQueue;
 import java.util.concurrent.ScheduledFuture;
@@ -53,7 +52,6 @@ import sample.Broadcaster;
 import sample.Listener;
 import sample.adapter.ByteSampleAdapter;
 import sample.complex.ComplexBuffer;
-import sample.complex.Complex;
 import source.SourceException;
 import source.tuner.TunerController;
 import source.tuner.TunerType;

src/source/tuner/rtl/e4k/E4KTunerController.java

@@ -534,6 +534,7 @@ public class E4KTunerController extends RTL2832TunerController
 		}
 	}
 	
+	@SuppressWarnings("unused")
 	private void generateDCOffsetTables( boolean controlI2CRepeater ) 
 							throws UsbException
 	{