[fix] fixed listing avalaible languages
[evol] translation rework: new mechanism to handle translated/untranslated strings, make use of translation parameters, moved I18n class, translations update
[evol] RFC2616 Accept-Language field support #2 (moved out of cyborghood namespace btw)
[evol] RFC2616 Accept-Language field support #1 (needed for RFC2798 'preferredLanguage' attribute type support)