This fixes issue #5159.

add supported docker version to docs

Ensure test_command tests are actually correct

Add blank line before rst directive

Use ovirtsdk if it installed, but fall out gracefully if it is not

Use h2 for version headings in Changelog to allow deeplinking

The word skipped only has 2 p's not 3

Fix new new module_style determination. Fixes #5148

hostname module: add support for Amazon Linux

Added a parameter for dest_port and also check ansible_ssh_port inventory variable.

Using
```
assert 'changed' in result
```
doesn't actually check if something is changed, which is presumably
the reason for the assertion. What is actually needed is
```
assert result.get('changed')
```
which checks that changed is set and not False. Tests still pass after
this change

Fix checking for existence of EC2 tags

authorized_key module: rewrite options to dict parser, fixes #5032

Fixed hostname module for RHEL6 Workstation

Implement ansible.module_utils.rax

Added `-y` flag to `query_package`

Exit 0 with no matched hosts

New library/cloud/ec2 module parameter (assign_public_ip) for non-default VPC instance launching.

Fix "manual" ansible-playbook example in guide_vagrant.rst

The given example is trying to load an inventory file with the -i option, so it should probably be given the actual Vagrant-written inventory file name. I contemplated using 'vagrant_ansible_inventory_default' instead (which is what my Vagrant demo actually creates) but 'vagrant_ansible_inventory_machinename' is more consistent with the existing example in the docs.

Add PyPi version badge.

Fix for documentation playbook loops

mention that the mount module will remove mount directories

Fixes #5081

Correct the invocation of ‘_assemble_from_fragments’

Code to limit display of version_added attributions in modules for modules that are too old to call out this information.

This does not generically apply to new arguments added to existing modules, just the version_added attribute on the top level modules.

Revert "No longer need to reference 'version_added' in docs for these, as this was quite a while ago."

This reverts commit ff0a41d4.

Docs: Fix the module formatter code that is intended to remove the 'historical' variable from showing up in version_added information (RST)