Organic groups moderation (7.x-2.3) - en to pt translation catalogue (4 entries)

en: Delete
pt: Apagar

en: Organic groups
pt: Grupos orgânicos

en: Revert
pt: Reverter

en: Unpublish current revision (of anyone's content)
pt: Despublicar a versão atual (do conteúdo de todos os usuários)
