Allows to health-check two services on one host. Before, asking for 2 health checks being present for `http://myhost:8888` and `http://myhost:9999` resulted in just a single health check, as this module considered the two specs as equal.
Bonus: route53_health_check now passes style guidelines
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