This change is being made to address an issue where the go-i18n
translation library would result in partial-translations when a
given language dictionary was missing a given plural keyword. The
improvement made here leads the translation library to try an
'other' keyword lookup if the first plural keyword fails to have
a value.
This change was not accepted upstream due to concern regarding
changing the behavior, so we are using a fork at this time to
address the issue.
be4b473aee