Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Upgrade bazlets to latest stable-2.16 to build with 2.16.17 API
  Upgrade bazlets to latest stable-3.0 to build with 3.0.8 API
  Upgrade bazlets to latest stable-3.0
  Upgrade bazlets to latest stable-2.16

Change-Id: I88854aa49a16112af8f1a72c6c6b99124b7b7fe4