[openstreetmap-website] fixing reload-languages script to work with Rails 3 (#309)

[Tom Hughes]

Yeah, that looks fine. Be aware that if you move or reformat `config/languages.yml` then `script/locale/update-languages` will need to be changed.

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/309#issuecomment-19644050
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