* Fixing incorrect documentation for the continuation passing style IAssetService.Get() method

* Changing the SimianGrid asset service connector to match the corrected documentation

OpenSim/Services/Connectors/SimianGrid/SimianAssetServiceConnector.cs

@@ -207,7 +207,7 @@ namespace OpenSim.Services.Connectors.SimianGrid
                 AssetBase asset = m_cache.Get(id);
                 if (asset != null)
                 {
-                    Util.FireAndForget(delegate(object o) { handler(id, sender, asset); });
+                    handler(id, sender, asset);
                     return true;
                 }
             }

OpenSim/Services/Interfaces/IAssetService.cs

@@ -51,7 +51,8 @@ namespace OpenSim.Services.Interfaces
         byte[] GetData(string id);
 
         /// <summary>
-        /// Get an asset asynchronously
+        /// Get an asset synchronously or asynchronously (depending on whether 
+        /// it is locally cached) and fire a callback with the fetched asset
         /// </summary>
         /// <param name="id">The asset id</param>
         /// <param name="sender">Represents the requester.  Passed back via the handler</param>