Changes to the metadata format were approved here:
https://github.com/ansible/proposals/issues/54
* Update documentation to the new metadata format
* Changes to metadata-tool to account for new metadata
* Add GPL license header
* Add upgrade subcommand to upgrade metadata version
* Change default metadata to the new format
* Fix exclusion of non-modules from the metadata report
* Fix ansible-doc for new module metadata
* Exclude metadata version from ansible-doc output
* Fix website docs generation for the new metadata
* Update metadata schema in valiate-modules test
* Update the metadata in all modules to the new version
Raise the bar for module `DOCUMENTAION`
This validator update was used to find the issues in https://github.com/ansible/ansible/pull/22297/files
**Validation**
* Updated Validation and docs to enforce more (items fixed in https://github.com/ansible/ansible/pull/22297/files)
* Use `suboptions` to document complex options
* Validate module name
* Validate deprecated modules have correct ANSIBLE_METADATA
**Module Documentation Generation**
* Document `suboptions:` Example https://gist.github.com/gundalow/4bdc3669d696268328ccc18528cc6718
* Tidy up HTML generation (valid HTML, no empty lists, etc)
**Documentation**
* Clarify the steps for deprecating a module
* Use correct RST headings
* Document `suboptions:` (options)
* Document `contains:` (returns)
**Details**
The aim is to get this (and corresponding module updates) complete by the time `devel` becomes `2.4`, as this allows us to raise the bar for new modules
Example `suboptions` https://gist.github.com/gundalow/4bdc3669d696268328ccc18528cc6718
The aim is to get this PR integrated into `devel` *before* we branch `stable-2.3`, this will allows us to:
* Raise the bar for new modules in 2.4
* Ensure the generated module documentation for 2.3 and higher is improved, important as we will be doing versioned docs moving forward.
* How to document your module
* Remove blank lines
* note:: Versions should be strings
* requirements on the host that executes the module.
* option names & option values
* Feedback
* formatting
* Scott's final feedback
* Revamping module development docs - work in progress
* Refurb of developing modules content continues.
* Developing modules refurb work continues
* Continued refurb of developing modules content. Work-in-progress.
* Ibid
* Dev guide content refurb continues - WIP
* Ibid.
* Removed reference to old extras module repo
* Tweaks
* Removed some non-intro material; added link to github module PRs.
* Incorporated review feedback from @gundalow and @tkuratomi; fixed some links; renamed '*contributing' to '*checklist'
