Made server a pointer for eliminating TCPSession2.

TerminalSession.cpp

@@ -3,11 +3,9 @@
 
 namespace core {
    
-   TerminalSession::TerminalSession(EPoll &ePoll, TCPServer &server) : TCPSession(ePoll, server) {
-   }
+   TerminalSession::TerminalSession(EPoll &ePoll, TCPServer *server) : TCPSession(ePoll, server) {}
    
-   TerminalSession::~TerminalSession() {
-   }
+   TerminalSession::~TerminalSession() {}
    
    int TerminalSession::getLines() {
       struct winsize size;