Alot of changes.

Command.h

@@ -46,7 +46,7 @@ namespace core {
       ///         a non-zero value indicating an error condition.
       ///
       
-      virtual int processCommand(std::string request, Session *session) = 0;
+      virtual int processCommand(std::string request, Session *session, std::stringstream &data) = 0;
       
       ///
       /// Specify the output that will occur to the specified session.