Code cleanup

Added missing this, annotations, etc.

src/main/java/appeng/parts/p2p/PartP2PLight.java

@@ -95,7 +95,7 @@ public class PartP2PLight extends PartP2PTunnel<PartP2PLight> implements IGridTi
 		this.opacity = data.readInt();
 
 		this.setOutput( this.lastValue > 0 );
-		return lastValue != oldValue || oldOpacity != this.opacity;
+		return this.lastValue != oldValue || oldOpacity != this.opacity;
 	}
 
 	private boolean doWork()

src/main/java/appeng/parts/p2p/PartP2PTunnel.java

@@ -162,7 +162,7 @@ public abstract class PartP2PTunnel<T extends PartP2PTunnel> extends PartBasicSt
 	public void writeToStream( ByteBuf data ) throws IOException
 	{
 		super.writeToStream( data );
-		data.writeShort( getFrequency() );
+		data.writeShort( this.getFrequency() );
 	}
 
 	@Override