* Added new exportImage() function to BasicTerrain which will output a gradient-mapped image of the terrain which can be uploaded to the grid for things like world map images. (shiinnny), will update later with an improved version using the bilinear quad method employed in client terrain rendering.
* Rebuild project & build files for basicterrain with System.Drawing dependency. Prebuild updated.
* cleared up verbose/noverbose/disableOutput douple negation confusion in ConsoleBase
* 2d chat radius is now 3d chat sphere
* removed unused fast 2d radius calc
* added chat type 0xFF : broadcast (no sphere checking)
* OpenSimMain now exposes its LocalWorld