[maven-release-plugin] copy for tag v-RC1

Release container fix.

The release branch uses the project version, not a daily snapshot.

Merge pull request GoogleCloudPlatform#591 from tgroh/backport_bzip

Backport apache/beam #3669

Google Cloud Dataflow SDK for Java, version 2.0.0

[maven-release-plugin] copy for tag v2.0.0-RC2

[maven-release-plugin] copy for tag v2.0.0-RC1

[maven-release-plugin] rollback changes from release preparation of v…

…2.0.0-beta3-RC1

[maven-release-plugin] copy for tag v2.0.0-beta3-RC1

Dataflow SDK for Java, Version 2.0.0-beta2

[maven-release-plugin] copy for tag v2.0.0-beta2-RC1