Use const-correctness form for the Answer class and common functions
Use const-correctness form for the Socket class
Use const-correctness form for the Connection class
Use const-correctness form for the Debug class
Use const-correctness form for the Request class
Use const-correctness form for the Speaker class
Use const-correctness form for the ClientBase class
Use const-correctness form for the Client class
Use const-correctness form for the RegistrarClient and ClientList classes