Add google cloud datastore Lock implementation#135

Open

amura2406 wants to merge 4 commits intothenativeweb:masterfrom amura2406:master

+141-2

Commits on Oct 28, 2018

Commits on Oct 30, 2018

move index.yaml (gcloud datastore) into test folder
amura2406
committed

Commits on Oct 31, 2018

update readme to include "google cloud datastore"
amura2406
committed