Misspell in mail.py callback.

Looks like little misspell.

Enables 'force basic auth' -feature globally

document `jsonfile` fact cache

Update tests for win_get_url module to test force parameter

assert password or ssh key provided on new image creation

minor spelling changes

* 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