TerrainLodControl -> TerrainGridLodControl

Just to save others some time in case they run into same problems like me after upgrading to a newer jME version after the recent terrain system refactorings … all jME Test Cases show their terrain fine but my code just did nothing and I saw no differences on the first and seconds looks but after an hour of debugging I noticed that there exists a specialization of TerrainLodControl that one should use now when using TerrainGrid :slight_smile: