Bug#215205: language-chooser: Language order shouldn't be alphabetical

[Petter Reinholdtsen <pere@hungry.com>]

It is important to realize that the language/region choice affect both
displayed translation, default keyboard, default timezone, and in
Skolelinux default ispell dictionary and KDE and Gnome translations.
For this reason, I believe the list of options should be as complete
as possible, and not only show the languages currently available in
the first stage installer.

I've tried two different sorting orders.  The original one was sorted
using the underlying English option, not the displayed text.  This
resulted in a list with no apparent sorting order.

Next, I've rewritten this to sort using the translated (and displayed)
text, using the C locale.  I'm not sure if the C locale is the best
locale to use, but it was the simplest one.

I am open for suggestions for the sorting order, but I believe the
order should make it easy to use the shortcuts in the newt frontend,
making it possible at the moment for me to press 'v' to jump close to
the Norwegian option.

Perhaps it is a good idea to prefix all options with the locale name,
like 'no_NO: <translated text>', but I am not sure if that is actually
useful.

I do not find using the translation "ranking" a very good idea.  It
make it very hard for users to know where in the list they can expect
to find "their" language/region choice.