LIBOMV-477 Adds SendPostcardMessage to Message system

git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2629 52acb1d6-8a22-11de-b505-999d5b087335

OpenMetaverse/Messages/MessageEventDecoder.cs

@@ -70,6 +70,7 @@ namespace OpenMetaverse
                 case "RemoteParcelRequest": message = new RemoteParcelRequestMessage(); break;
                 case "UpdateScriptTask": message = new UpdateScriptTaskMessage(); break;
                 case "UpdateScriptAgent": message = new UpdateScriptAgentMessage(); break;
+                case "SendPostcard": message = new SendPostcardMessage(); break;
 
                 // Capabilities TODO:
                 // DispatchRegionInfo