Moved ZMenu reminder to roundstart module, and fixed bug where it would be printed twice when connecting/spawning.

src/zr/weapons/zmarket.inc

@@ -161,6 +161,12 @@ ZMarketOnClientSpawnPost(client)
         return;
     }
     
+    // If client is a zombie, then stop.
+    if (InfectIsClientInfected(client))
+    {
+        return;
+    }
+    
     // If auto-rebuy is enabled, then force client to rebuy weapons.
     if (CookiesGetClientCookieBool(client, g_hZMarketAutoRebuyCookie))
     {