Script references patch

Cleared issue in a few scripts which would be trying to access Java Math library methods with unexpected parameter types.
Fixed EllinPQ rewarder NPC handing out an unexpected itemid to the player.
Cleared SQL foreign key constraint statement no longer supposed to be used.

src/client/MapleClient.java

@@ -1233,7 +1233,7 @@ public class MapleClient {
 	}
         
         public void checkChar(int accid) {  /// issue with multiple chars from same account login found by shavit, resinate
-            if (true) {
+            if (!YamlConfig.config.server.USE_CHARACTER_ACCOUNT_CHECK) {
                 return;
             }