#154 Memory leak caused by json rpc

[Anonymous]

        attach(new json_service(srv),
               "rpc", "/rpc{1}", // mapping
               "/rpc(/(.*))?", 1);   // dispatching

        mapper().assign(""); // default URL
        mapper().root("/myapp");

        url /myapp/rpc ==> ok
        url /rpc       ==> faild  （Return the byte file of memory leak)

[Anonymous]