[Localization] Start translating from a random message in Pootle

[Pierre Métras]

Hi Yuan Chao,

> You can also go to the "Show Editing Functions". There's one link to
> "View Untranslated".

As I said in my previous message, this function times out when running. I 
click on the "untranslated" control and get a HTTP 502 error: Error reading 
from remote server (Bad Gateway).

Pierre Métras