final variables and parameters

src/main/java/appeng/util/LookDirection.java

@@ -28,7 +28,7 @@ public class LookDirection
 	public final Vec3 a;
 	public final Vec3 b;
 
-	public LookDirection( Vec3 a, Vec3 b )
+	public LookDirection( final Vec3 a, final Vec3 b )
 	{
 		this.a = a;
 		this.b = b;