appengine: update dependencies, use latest lints (#243)

gcloud: support the latest pkg:googleapis (#241)

Prepare appengine version 0.13.10 (#197)

Fix updateMetadata in gcloud, release 0.8.18 (#188)

Fix bug in `ObjectMetadata.replace` -- release gcloud (#187)

Release gcloud version 0.8.16 (#183)

rev package:appengine to 0.13.9 for publishing (#177)

publish package:gcloud after the repo move (#96)

[native_synchronization] update pubspec metadata for the repo move (#5)

Add support for metadata in Storage.copyObject (dart-archive/gcloud#194)