Apipie upgrade broke our docs page, because our files were generated …

…with no locale and the latest version has the fix Apipie/apipie-rails#543 merged in, which now correctly defaults locale from the previous 'no idea use nil' to 'use the default_locale of the app', so it would try to find .en files and they did not exist. This will set our language to nil, so it looks for files without the .en, which do exist. Long term fix is to properly generate localized files, but it's not immediately clear to me how to do that.

config/initializers/apipie.rb

@@ -3,5 +3,6 @@
   config.api_base_url            = "/api/v1"
   config.doc_base_url            = "/docs"
   config.api_controllers_matcher = "#{Rails.root}/app/controllers/api/**/*.rb"
-  config.show_all_examples = true
+  config.show_all_examples       = true
+  config.default_locale          = nil
 end