Fixed more bugs caused by the new mappings.

src/main/java/appeng/worldgen/meteorite/IMeteoriteWorld.java

@@ -35,7 +35,7 @@ public interface IMeteoriteWorld
 
 	int maxZ( int in );
 
-	boolean hasSkyLight();
+	boolean isNether();
 
 	Block getBlock( int x, int y, int z );
 

src/main/java/appeng/worldgen/meteorite/StandardWorld.java

@@ -64,9 +64,9 @@ public class StandardWorld implements IMeteoriteWorld
 	}
 
 	@Override
-	public boolean hasSkyLight()
+	public boolean isNether()
 	{
-		return !this.getWorld().provider.hasSkyLight();
+		return !this.getWorld().provider.isNether();
 	}
 
 	@Override