Merge branch 'stable-2.14'

* stable-2.14:
  TestUtil: Annotate as @Ignore and remove fake test method
  bazlets: Replace native.git_repository with skylark rule
  Harmonize external dependency names to use hyphen
  Upgrade mockito to 2.23.0
  Upgrade bazlets to latest stable-2.14 to build with 2.14.15 API

Change-Id: I06102485417395b16180b61eed090f92cc970b35