Cart dropdown is now showing. The fix came after I added a custom currency symbol for PERU via the snippet from this link: http://docs.woothemes.com/document/add-a-custom-currency-symbol/
the issue might have been tied to a widget i installed from woothemese that does currency conversion. So your lang files are prob fine. The checkout however is still in English. Not sure why. would like to get to the bottom of that.
As for the location of lang files, i restored the files that came with the theme download. I will try again this time substituting your attached files to the location /neighborhood/language