Merge branch 'stable-2.15'

* stable-2.15:
  Bazel: Reformat BUILD file with buildifier 0.17.2

Change-Id: I35086c7360d0fb3f80b20397eda39733b2701adb
tree: 5a7602091b14d8e3dd380ec993c438f4e969a706
  1. .gitignore
  2. .settings/
  3. BUILD
  4. LICENSE
  5. src/