pouchdb/pouchdb — pull request #3213 by nolanlawson (2014-12-18 13:44:17+00:00)
Title: (#3213) - perf: don't store id and rev (idb)

There's no need to store the _id and _rev if
we already have _doc_id_rev. For map/reduce especially,
this takes up a lot of unnecessary space.