Issue 4074 start locale work.

https://code.google.com/p/otwarchive/issues/detail?id=4074

This is the first chunk of work, next we will add capabilities to each locale allowing them to be used by the emails messages and the interface.
Since the rest of the test mentions "Dutch" and "nl-nl", I assume you do mean "Dutch" and not "Deutsch" (which is the German word for "German", whose language code is "de"). 
So might want to change that to "Dutch" to prevent twitching. :)