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

src/spectrum/ChannelOverlayPanel.java

@@ -141,6 +141,8 @@ public class ChannelOverlayPanel extends JPanel implements SettingChangeListener
 				case SPECTRUM_LINE:
 					mColorSpectrumLine = colorSetting.getColor();
 					break;
+				default:
+					break;
 			}
 		}
     }

src/spectrum/SpectralDisplayPanel.java

@@ -259,6 +259,8 @@ public class SpectralDisplayPanel extends JPanel
 				case SPECTRUM_LINE:
 					mColorSpectrumLine = colorSetting.getColor();
 					break;
+				default:
+					break;
 			}
 		}
     }

src/spectrum/SpectrumPanel.java

@@ -167,6 +167,8 @@ public class SpectrumPanel extends JPanel
 				case SPECTRUM_LINE:
 					mColorSpectrumLine = colorSetting.getColor();
 					break;
+				default:
+					break;
 			}
 		}
     }

src/spectrum/WaterfallPanel.java

@@ -37,7 +37,6 @@ import settings.ColorSetting;
 import settings.ColorSetting.ColorSettingName;
 import settings.Setting;
 import settings.SettingChangeListener;
-import buffer.FloatAveragingBuffer;
 import controller.ResourceManager;
 
 /**

src/spectrum/converter/ComplexDecibelConverter.java

@@ -1,12 +1,8 @@
 package spectrum.converter;
 
-import java.util.Arrays;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import spectrum.DFTProcessor;
-
 public class ComplexDecibelConverter extends DFTResultsConverter
 {
 	private final static Logger mLog =