Fixed an error in the logging function ($response instead of $responses)
gethostbyaddr will now only be executed when logging is enabled
1.3
Corrected some typing errors in check_httpbl.php
Changed the message which a visitor receive, when he is listed at httpBL.abuse.ch. Now the message contains a link to the lookup form at http://dnsbl.abuse.ch/check.php where the visitor will find reason and time of the listing.