this should allow user to control how they want the playbook dirs inspected
for additional vars, default now reverts to 2.3 behaviour (top).
corrected paths order
minor doc reword
Addtions to porting_guide_2.4
* deprecated notice for win_package return values
* Added vars plugins, config api, inventory plugins. These were mostly backwards compatible.
Added notes for users and devs to check out new features once i write the 'feature docs' I'll
come back and link to them from here
* Porting Guides for Ansible Versions
Improve the user facing documentation.
Tell people what changes they need to make
* More porting guides
* Link porting guides from TOC
* Link porting guides from CHANGELOG.md
* typo in link
* Review feedback
* Better CHANGELOG links
* Better links
* code blocks
* Minor changes
* Correct links, comment out network section in 2.4
* Typos
* Revert non 2.4 changes
* Add placeholders for other items
* multiple inventory
* Update porting_guide_2.4.rst
* Update porting_guide_2.4.rst
* Update porting_guide_2.4.rst
* Update porting_guide_2.4.rst
* add win_command/win_shell escaping notes
* Added some windows porting info
* Edit for grammar
* Correct links, delete Net Platform Agnostic
* 2.5 link
* Network changes in 2.4
* facts_namespacing was pushed back to 2.5
Due to lack of time we pushed this back to 2.5 so that the facts in the namespace could be shortened.
* Python version
* Remove FIXMEs - move to seperate PR
