* Use a template to generate the category lists
* Refactor so that we first extract all of the data that we need to
build the docs and then give that data to the templates to build with
* Add docs page listing modules ordered by support level
* Add network value to support_by field.
* New support_by value, certified
* Deprecate curated in favor of certified
* Add conversion from 1.0 to 1.1 to metadata-tool
* Add supported by Red Hat field to ansible-doc output
* Implement ability to limit module documentation building:
- Added new option to plugin_formatter.py to support passing-in a list of
modules for which the documentation should be built.
- Updated docuemtnation Makefile to allow specifying list of modules via
environment variables (defaulting to all modules).
- Update instructions for building documentation and module development to
include commands and description of limiting module documentation builds.
* Updated implementation for limiting module documentation building:
- Pass list of modules (or None) to list_modules function instead of string.
- Move conversion of module list to argument parsing code.
- No special keywords. Default ("") means build all modules. For no modules just
specify non-existing module name.
- Updated documentation to reflect the changes.
* Updated implementation for limiting module documentation building:
- Use better default value, and don't treat "" as special case.
- Conditionally invoke different variants of command in Makefile instead of
using special value "".
* Minor edits
Wording tweak
