translate administration/indexes.po and indexes-creation.po
translate tutorial/create-an-index.po
translate tutorial/create-a-compound-index.po
translate tutorial/create-a-unique-index.po
translate tutorial/create-a-sparse-index.po
translate tutorial/create-a-hashed-index.po
translate tutorial/build-indexes-on-replica-sets.po
Merge branch 'master' of https://github.com/tjworks/docs
translate tutorial/build-indexes-in-the-background.po
translate tutorial/roll-back-to-v1.8-index.po