Unfortunately, I didn't manage to automatically provide all the languages that are available as *.qm files. By now we have to manually set the combobox items and the list for the languages in the bitmessageqt/__init__.py
I've set it to degrade to language codes in both the user-set locale and the imported default locale, e.g. if there is no 'en_US' then use 'en' (like grant olsons commit).
Add a test button to namecoin UI settings, which tries
out the connection and reports its result back. Also use
namecoin.conf as config file to load default RPC user/pass
combination from.
