Comment 2 for bug 832084

Enhancement submitted.

New formatter functions:
    * ``language_codes(lang_strings)`` -- return the language codes for the strings passed in `lang_strings`. The strings must be in the language of the current locale. `Lang_strings` is a comma-separated list.
    * ``language_strings(lang_codes, localize)`` -- return the strings for the language codes passed in `lang_codes`. If `localize` is zero, return the strings in English. If localize is not zero, return the strings in the language of the current locale. `Lang_codes` is a comma-separated list.