Across Platform 2.0.0 released

Across Platform 2.0.0 has been released and this includes new release versions for several modules.  See the reference documentation for an overview of the different module versions.

Anyone working with platform-bom 2.0.0-SNAPSHOT should switch as soon as possible as the SNAPSHOT versions will be removed from the repository.

The Across starter project has been updated for release 2.0.0 as well.