v0.6.0

Make index creation manual:

serializer = Serializer(mds_db, assets_db)
serializer.create_indexes()

v0.4.0

Adds indexes supporting paginated lookups

Release v0.3.1

Changes

• Fix bug in the duplicate-handling path for Datum.

mongo_embedded

mongo_layout1 and mongo_layout2 are renamed to mongo_normalized, and mongo_embedded.
mongo_embedded is working with DocBuffer.