0.9.0

Changes:

• Distinguish between WORKSPACE_NAMESPACE and GOOGLE_PROJECT (#369, PR #373)
  This adds support for Terra's new "Project Per Workspace" model
• Restore old DRS copy_batch API; separate copy_batch with manifest (#370, PR #374)
• Stop extraneous logging for Notebook progress bar (#371, PR #375)

Thanks to contributors: @jessebrennan, @mbaumann-broad, and @DailyDreaming for getting these latest fixes in.