Fix bug

modules/Pisg/HTMLGenerator.pm

@@ -1582,7 +1582,6 @@ sub _replace_links
         $str =~ s/(http|https|ftp|telnet|news)(:\/\/[-a-zA-Z0-9_\/~]+\.[-a-zA-Z0-9.,_~=:&amp;@%?#\/+]+)/<a href="$1$2" target="_blank" title="Open in new window: $1$2">$1$2<\/a>/g;
         $str =~ s/([-a-zA-Z0-9._]+@[-a-zA-Z0-9_]+\.[-a-zA-Z0-9._]+)/<a href="mailto:$1" title="Mail to $1">$1<\/a>/g;
     }
-    $str =~ s/&/&amp;/g;
     return $str;
 }