This commit introduces the first pass at the template for other
languages, based on currently converted code. While it is complete for
the asterisk I've edited so far, in general, because there is more
conversion work to be done, it is therefore not complete.

Copy extract_language_templates_from_asterisk_source, and template-sed-script
to your operating asterisk source code top level dir, and run the extract script
there. Until I write a script to sort and merge the multiple occurrences of
format strings, you'll have to do it by hand, a rather tedious process.
My idea is to write a program that will run on the result of the extract
script, and will expect you to do some cleaning before running.

There is still some work on the apps; I see partial sentences still in the
ast_say_sentence() calls.
The patch to asterisk, asterisk-trunk-diffs, is now
against version 403615.