Languages

I added a languages module and added as many as possible languages to countries. Language data was taken from http://www.loc.gov/standards/iso639-2/php/English_list.php. For adding languages to countries I used http://en.wikipedia.org/wiki/List_of_official_languages_by_state.

The list of languages and country languages is not complete and only includes languages which have an alpha2 code, but it is a start :wink: