Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Add option to exclude metrics

Change-Id: I54c39fbff22495155aa48daeb4e518c6f817aea8
tree: 6cb626fc9650366f4d5698c4a22ef722e7c67b12
  1. BUILD
  2. external_plugin_deps.bzl
  3. pom.xml
  4. src/