Made server a pointer for eliminating TCPSession2.

SubscriptionManager.cpp

@@ -67,7 +67,7 @@ namespace core {
          std::stringstream out;
          coreutils::Log(coreutils::LOG_DEBUG_1) << request[2];
          std::string invitee = request[2].str();
-         TCPSession *tempSession = session.server.getSessionByAlias(&invitee);
+         TCPSession *tempSession = session.server->getSessionByAlias(&invitee);
          std::stringstream temp;
          temp << "invite:" << request[1] << ":" << *(std::string *)session.alias;
          tempSession->write(temp.str());