Changed FrequencyChangeListener interface to an event so that I could describe what event was causing the frequency change and to broadcast frequency and sample rate error values.

R820T - added a couple more sample rate settings to the enum and modified the periodic sample rate info logger.

src/source/tuner/TunerController.java

@@ -167,7 +167,8 @@ public abstract class TunerController implements Tunable
 			
 			updateLOFrequency();
 			
-			source = new TunerChannelSource( threadPoolManager, tuner, tunerChannel );
+			source = new TunerChannelSource( threadPoolManager, 
+					tuner, tunerChannel );
 		}
 
 		return source;