[Audacity-translation] Audacity 2.2.0 (Basque Update)

[Azpidatziak <azp...@gm...>]

Hi Audacity Team,

I update Basque translation for audacity from last .pot file and send you it.
I test it with "alpha-23-jul-17" version and work fine.

Please, release it.

Thanks!!

-- 
Azpidatziak <azp...@gm...>