Revert "Remove small shell utilities, apply comments in pull request, add README.md"

This reverts commit 8fca15ab247f04dcde8ce70539ea73dd17489a1f.
Revert "Moving contrib/fluentd-elasticsearch to contrib/logging/fluentd-elasticsearch"

This reverts commit 08d2f4eec6d3e0b79977c1993db1f7405bf31827.
Revert "A Dockerfile that builds an image for sending Docker log files"

This reverts commit d20725749ae03fa6491493a4f8bca7f89efe0e5b.