- fix a potential file descriptor leak in server side of pak downloading

- add new functions for banning clients from server, in engine part. This will also make it possible to ban ipv6 addresses in old mods.

code/client/cl_main.c

@@ -2784,7 +2784,7 @@ void CL_Init( void ) {
 
 	SCR_Init ();
 
-	Cbuf_Execute ();
+//	Cbuf_Execute ();
 
 	Cvar_Set( "cl_running", "1" );