Multilingual FAQ title and categories

First of all, thanks for this great useful module. I used it these days to create a FAQ in two languages. I found some problems:

1. The Page title is not translatable. That's because of these lines:
   

   #415 
   drupal_set_title(variable_get('faq_title', 'Frequently Asked Questions'));
   #530 
   $title = variable_get('faq_title', 'Frequently Asked Questions');
   

   I replaced them with this code:

   #415 
   drupal_set_title(t(variable_get('faq_title', 'Frequently Asked Questions')));
   #530 
   $title = t(variable_get('faq_title', 'Frequently Asked Questions'));
   

2. I configured the FAQ to show the categories online, with the answer hidden. However, when changing the language, the categories don't change with the translation. I had installed and enabled i18ntaxonomy.
   I think the function

   function faq_tt($string_id, $default, $language = NULL) {}
   

   is the problem, because it returns always the default value, because tt() function cannot be found.
   In my case, inside faq_page, around line #561, I used

   i18n_taxonomy_localize_terms(taxonomy_get_tree($vid, 0, 1, TRUE));
   

   instead of

   taxonomy_get_tree($vid, 0, 1, TRUE);
   

   Hope this helps to make this module better.

   Thanks again