Merge branch 'stable-2.16' into stable-3.0
* stable-2.16:
Upgrade bazlets to latest stable-2.16 to build with 2.16.22 API
Upgrade bazlets to latest stable-2.16
Upgrade bazlets to latest stable-2.16 to build with 2.16.21 API
Upgrade bazlets to latest stable-2.15 to build with 2.15.19 API
Upgrade bazlets to latest stable-2.14 to build with 2.14.21 API
Upgrade bazlets to latest stable-2.16 to build with 2.16.20 API
Upgrade bazlets to latest stable-2.16 to build with 2.16.19 API
Change-Id: Ic050ed302d8a9ed0edefde3e9ee6030b948c52fa