Decouples DecoderState from the Decoder and makes DecoderState inherit

from Module so that Decoder can function independent of DecoderSTate and
DecoderState can more cleanly interface with other modules. 

Resolves issue with LTR-type decoders where the AudioModule was
filtering demodulated audio buffers before the decoder received the
audio - demodulated audio buffers are now copied before creating
AudioPackets.

src/module/decode/mpt1327/MPT1327Decoder.java

@@ -41,7 +41,6 @@ import alias.AliasList;
 import bits.MessageFramer;
 import bits.SyncPattern;
 import controller.channel.Channel.ChannelType;
-import controller.channel.map.ChannelMap;
 import dsp.filter.FilterFactory;
 import dsp.filter.Filters;
 import dsp.filter.Window.WindowType;
@@ -89,12 +88,8 @@ public class MPT1327Decoder extends Decoder
     private MessageFramer mTrafficMessageFramer;
     private MPT1327MessageProcessor mMessageProcessor;
 
-    public MPT1327Decoder( ChannelMap channelMap,
-    					   ChannelType channelType,
-    					   AliasList aliasList,
-    					   Sync sync )
+    public MPT1327Decoder( AliasList aliasList, Sync sync )
 	{
-    	super( new MPT1327DecoderState( aliasList, channelMap, channelType ) );
 
 		/* Decimation filter - 48000 / 2 = 24000 output */
 		mDecimationFilter = new HalfBandFilter_RB_RB( 
@@ -303,4 +298,25 @@ public class MPT1327Decoder extends Decoder
 			return getLabel();
 		}
 	}
+
+	@Override
+	public void reset()
+	{
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void start()
+	{
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void stop()
+	{
+		// TODO Auto-generated method stub
+		
+	}
 }