Code cleanup

src/main/java/cr0s/warpdrive/block/TileEntityLaser.java

@@ -732,16 +732,6 @@ public class TileEntityLaser extends TileEntityAbstractLaser implements IBeamFre
 		return tagCompound;
 	}
 	
-	@Override
-	public void invalidate() {
-		super.invalidate();
-	}
-	
-	@Override
-	public void onChunkUnload() {
-		super.onChunkUnload();
-	}
-	
 	// Common OC/CC methods
 	@Override
 	public Object[] getEnergyRequired() {

src/main/java/cr0s/warpdrive/data/ChunkData.java

@@ -275,7 +275,7 @@ public class ChunkData {
 			                                    time - timeUnloaded));
 		}
 		
-		// mark as loaded
+		// mark as unloaded
 		timeUnloaded = time;
 		isLoaded = false;
 	}

src/main/java/cr0s/warpdrive/render/RenderOverlayLocation.java

@@ -20,7 +20,7 @@ import net.minecraftforge.client.event.RenderGameOverlayEvent.ElementType;
 @SideOnly(Side.CLIENT)
 public class RenderOverlayLocation {
 	
-	private static Minecraft minecraft = Minecraft.getMinecraft();
+	private static final Minecraft minecraft = Minecraft.getMinecraft();
 	
 	private void renderLocation(final int widthScreen, final int heightScreen) {
 		// get player