Refactored static fetch_tel_for_vcard_from_db(..) to non-static
i_fetchTelsForVCard(..).
Refactored static fetch_email_for_vcard_from_db(..) to non-static
i_fetchEmailsForVCard(..).
Refactored static function fetch_data_for_vcard_from_db(..) to non-static
i_fetchDataForVCard(..).
Refactored static function fetch_category_for_vcard_from_db(..) to non-static
i_fetchCategoriesForVCard(..).