* Support 'apply' to apply attributes to included tasks
* Cannot validate args for task_include
* Only allow apply on include_
* Re-enable arg validation, but only for include_tasks and import_tasks
* s/task/ir/
* Add tests for include_ apply
* Include context with AnsibleParserError
* Add docs for apply
* version_added
* Add free-form documentation back
* Add example of free-form with apply
