* By default, texture rendering is on. This may be affected by using secure assets since your region hasn't registered with the gridserver before it asks for texture assets. It might also be affected by a slow asset server, so consider this release experimental.
* Defined interface IMapTileTerrainRenderer.
* Extracted "old" shaded maptile terrain rendering into ShadedMapTileRenderer;
streamlined it a bit and added "highlight" rendering to its "shadow"
rendering.
* Added "new" terrain-texture based maptile terrain rendering
(TexturedMapTileRenderer); made TerrainUtil.InterpolatedNoise public
* Adapted MapImageModule to allow switching between those two by configuration
* Added configuration option to OpenSim.ini.example
* Refactored a few things in Scene to make maptile saving easier to understand.
* Added comments to describe the 'clever code' assetcache update without the gridasset being updated so as to lessen possible confusion in patches in the future.
* If the MapImageModule isn't loaded, default to the code in Scene still.
* Fixed a bug with Terragen loader where it would do bad things on a non 256x256 sized terrain. Now loads the array correctly.
* Moved MapImageModule.cs to Modules/World/WorldMap
* Changed Location.RegionHandle to use Helpers.GetUlong instead of doing it ourselves.
