‘translate_url’ filter

Hi there.

At current state the ‘translate_url’ filter returns url with language at the end, even if this language is default and the option ‘hide_default_language’ is enabled.
May be this will do the job:

public function translate_url($url, $lang=null) {
    global $q_config;
    if(!$lang) $lang = $q_config['language'];
    $showLanguage = !$q_config['hide_default_language'] || $lang != $q_config['default_language'];
    return qtranxf_get_url_for_language($url, $lang, $showLanguage);
}

instead of current:

public function translate_url($url, $lang=null) {
    global $q_config;
    if($lang){
        $showLanguage = true;
    }else{
        $lang = $q_config['language'];
        $showLanguage = !$q_config['hide_default_language'] || $lang != $q_config['default_language'];
    }
    return qtranxf_get_url_for_language($url, $lang, $showLanguage);
}