Merge branch 'stable-3.2'

* stable-3.2:
  Upgrade bazlets to latest stable-3.1 to build with 3.1.12 API
  Upgrade bazlets to latest stable-3.2 to build with 3.2.6 API
  Upgrade bazlets to latest stable-3.1 to build with 3.1.11 API

Change-Id: I97ebd90364d84c45c73bb2372277077122fee851