Merge branch 'stable-3.0' into stable-3.1 * stable-3.0: Upgrade bazlets to latest stable-3.0 to build with 3.0.12 API Upgrade bazlets to latest stable-2.16 to build with 2.16.22 API Change-Id: Ibe6386df2d192a9fc1fedb527e41704b42fa6ab1