carto/protobuf @ revert-6394-master

Yannic Bonenberger edbc27fb81 Print logs of failing tests		%!s(int64=6) %!d(string=hai) anos
..
linux	edbc27fb81 Print logs of failing tests	%!s(int64=6) %!d(string=hai) anos
macos	077079573f Fixed CI failures with Ruby 2.3 on OSX (#5948)	%!s(int64=7) %!d(string=hai) anos
release	d28cf02ee0 Drop building wheel for python 3.4 (#6406)	%!s(int64=6) %!d(string=hai) anos
windows	36fa3c6d4d add missing C# windows presubmit.cfg file (#5894)	%!s(int64=7) %!d(string=hai) anos
README.md	6156af10e8 Add MacOS and Linux tests to Kokoro	%!s(int64=8) %!d(string=hai) anos

Kokoro Infrastructure

The files in this directory serve as plumbing for running Protobuf tests under Kokoro, our internal CI.