[Plugin: SEO Ultimate] Deeplink Juggernaut doesn't support cyrillic symbols

There is a problem in word boundary detection in Unicode strings.

in /includes/jlfunctions/str.php:207 replace this one

$search_regex = "/\b($search)\b(?!(?:(?!<\/?(?:$exclude_tags).*?>).)*<\/(?:$exclude_tags).*?>)(?![^<>]*>)/imsU";

to this one

switch (mb_detect_encoding($search)) {
      case 'UTF-8':
        $search_regex = "/($search)(?!(?:(?!<\/?(?:$exclude_tags).*?>).)*<\/(?:$exclude_tags).*?>)(?![^<>]*>)/imsu";
        break;
      default:
        $search_regex = "/\b($search)\b(?!(?:(?!<\/?(?:$exclude_tags).*?>).)*<\/(?:$exclude_tags).*?>)(?![^<>]*>)/imsu";
        break;
    }