* Changed the OpenMetaverse.Assets.Asset* classes to normalize their behavior as much as possible: - Some unused constructors were removed - Decoding is never done if the (assetID, assetData) constructor is called - AssetPrim decoding from XML will set the AssetPrim.AssetID to the UUID of the root prim in the linkset if it is not already set - Added more sanity checking in Decode() methods git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@3408 52acb1d6-8a22-11de-b505-999d5b087335