* circonus_annotation: clean description
- add 'default' field
- default value for 'required' field is false
- use formatting function
* circonus_annotation: clean argument_spec
remove useless conversion
default of 'required' False
use 'default' when possible
* circonus_annotation: fix pep8
* circonus_annotation: add RETURN block
* circonus_annotation: check_mode isn't supported, add a note
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