Fix dedicated server extra lua variables not being synched for joiners.

Original fix written by Lat`.

src/lua_script.c

@@ -1121,7 +1121,7 @@ void LUA_Archive(void)
 
 	for (i = 0; i < MAXPLAYERS; i++)
 	{
-		if (!playeringame[i])
+		if (!playeringame[i] && i > 0) // dedicated servers...
 			continue;
 		// all players in game will be archived, even if they just add a 0.
 		ArchiveExtVars(&players[i], "player");
@@ -1157,7 +1157,7 @@ void LUA_UnArchive(void)
 
 	for (i = 0; i < MAXPLAYERS; i++)
 	{
-		if (!playeringame[i])
+		if (!playeringame[i] && i > 0) // dedicated servers...
 			continue;
 		UnArchiveExtVars(&players[i]);
 	}