* Perhaps the only precedence change, in 2.0+ variables from set_fact
  will not override params to an include file, as params are expected
  to be more specific than host-based variables.
* Uncommented long-form include example.

Cb and contrib

renamed plugins to contrib (they are not really plugins)
rewrote README.md to reflect new usage
added new dir to setup.py so it gets copied with installation, in views
of making using inventory scripts easier in teh future

added v2 methods and made them call v1 when possible by tranforming the data

Fixes #11545

* Moving connection creation until after the task is post_validated,
  to make sure all fields are properly templated (#11230)
* Fixing problems related to the connection method and remote address
  lookup on the delegated-to host

Fixes #11230

fixes #11532

Added tests for `taggable` module

Fixes #11521

Fixes #11514

implement jinja2 header overrides