This prevents a traceback when the group is empty.
Fixes #6258

Merge pull request #6256 from angstwad/changes_changes-yo-dawg-i-herd-you-like-changes-so-commited-some-changes-into-changes-so-you-can-diff-while-you-diff

Add note about su support in CHANGELOG

CHANGELOG.md: remove duplicate entry about docker

docker_image: added support for docker_py >= 0.3.0, Docker API >= 1.8. Replace #6178

This reverts commit b769b418, reversing
changes made to 1e01fb85.

Fix regression causing setup to run for every play

This patch makes sure setup only runs once, unless it is enforced on a play.

Adds modules for managing Amazon RDS parameter and subnet groups.

get rid of newline chars when reading password file

typo fix

added better gentoo/funtoo support

missing import in assert module

Fixed missing ansible.errors import in assert module

Update CHANGELOG.md

Remove the legacy templating code, which was guarded by deprecation warnings in the previous two releases, and undocumented for a long time.  use {{ foo }} to access variables instead of ${foo} or $foo.

Show more whitespace throughout playbook examples to encourage better standards in first playbooks folks write.

the primary name of the parameter in the examples.