Merge branch 'stable-3.1' * stable-3.1: Upgrade bazlets to latest stable-3.1 to build with 3.1.12 API Upgrade bazlets to latest stable-3.0 to build with 3.0.15 API Upgrade bazlets to latest stable-2.16 to build with 2.16.26 API Upgrade bazlets to latest stable-3.1 to build with 3.1.11 API Upgrade bazlets to latest stable-2.16 to build with 2.16.23 API Change-Id: I32be27106575dedd900e2098e904ef6359b6616a