* Remove Sanity test ignore.txt entries
* Fixup boilerplate
* Remove use of blacklisted _ variable name
* cloudformation: Add an explicit removal version for template_format
This option's been ignored since ansible 2.3
* General docs cleanup to clear sanity errors
* elasticache_parameter_group: Add list of choices
- matches documented choices
- other values wouldn't have worked
* data_pipeline: Deprecate 'version' - always ignored
* Add deprecation documentation
