Schema migration that drops held write acks#33

Merged

schmidt-sebastian merged 2 commits intofirestore-held-write-acksfrom

mrschmidt-schemamigration

Sep 21, 2018

Commits on Sep 20, 2018

Schema migration that drops held write acks
schmidt-sebastian
committed

Commits on Sep 21, 2018

Remove Serializer
schmidt-sebastian
committed