Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  Update bazlets to latest revision on stable-2.14
  Automate the SonarQube analysis with bazel

Change-Id: I37fec0da285c2b99dacadf76256b043f6c722829
tree: f89db828cb94ca6bc875b6b069c4e51a4f92ed7a
  1. src/
  2. tools/
  3. .gitignore
  4. bazlets.bzl
  5. BUILD
  6. WORKSPACE