* Docs refactor as outlined in https://github.com/ansible/proposals/issues/79. Moves content into 'guides'; refactors TOC; fixes CSS; design tweaks to layout and CSS; fixes generated plugin, CLI and module docs to fix links accodingly; more.
* Adding extra blank line for shippable
(cherry picked from commit 373b1dcf59)
* Render nested return value documentation for more then one level
in the generated webdocs.
* Remove unnecessary code and cleanup
* Implement recursive option documentation
* Build elbow intendation style for options and return documentation
