Merge branch 'stable-2.13'

* stable-2.13:
  Batch sending mail when multiple reviewers added

Change-Id: I2bd6fe15ccedf983aee99b34ac35acb19df8000b
tree: d20087807ed1aea8ed27915d74edc1fba433e172
  1. src/
  2. tools/
  3. .gitignore
  4. bazlets.bzl
  5. BUILD
  6. LICENSE
  7. pom.xml
  8. WORKSPACE