* Provide a way to explicitly invoke the debugger with in the debug strategy
* Merge the debugger strategy into StrategyBase
* Fix some logic, pin to a single result
* Make redo also continue
* Make sure that if the debug closure doesn't need to process the result, that we still return it
* Fix failing tests for the strategy
* Clean up messages from debugger and exit code to match bin/ansible
* Move the FieldAttribute higher, to apply at different levels
* make debugger a string, expand logic
* Better host state rollbacks
* More explicit debugger prompt
* ENABLE_TASK_DEBUGGER should be boolean, and better docs
* No bare except, add pprint, alias h, vars to task_vars
* _validate_debugger can ignore non-string, that can be caught later
* Address issue if there were no previous tasks/state, and use the correct key
* Update docs for changes to the debugger
* Guard against a stat going negative through use of decrement
* Add a few notes about using the debugger on the free strategy
* Add changelog entry for task debugger
* Add a few versionadded indicators and a note about vars -> task_vars
* Removing obsolete version behavior callout notes - initial pass.
* Fixed example text punctuation.
* Removed old version callout.
* Typo fix
* Updated example
* Fixed awkward sentence
* Fixed incorrect feature name
* Reinstated current version callout
* developing_modules.rst is now in dev_guide, sync changes and delete the old version
* Cleaner RST & formatted code
* Tidyup roadmaps
* Link to repomerge
* Pull in abadger's fixes From https://github.com/ansible/ansible/compare/docs-code-block-fixes?expand=1
* Clean docsite/rst (apart from ROADMAP
