Merge branch 'stable-2.16' into stable-3.0

* stable-2.16:
  Upgrade javamelody-core to 1.79.0
  Upgrade bazlets to latest stable-2.15 to build with 2.15.15 API
  Upgrade bazlets to latest stable-2.16 to build with 2.16.10 API

Change-Id: I4afa21d6b5be834f87f6b57f5f4be686dd680205