At the moment Ansible prefers yes/no for module booleans, however booleans in playbooks are still using True/False, rather than yes/no. This changes modifies boolean uses in playbooks (and man pages) to favor yes/no rather than True/False.

This change includes:

- Adaptation of documentation and examples to favor yes/no
- Modification to manpage output to favor yes/no (the docsite output already favors yes/no)

Added a boolean constant scp_if_ssh to the config
Added scp support for the ssh connection plugin
Refers to #1279

This uses the plugin framework to add filter plugins.
The previously hardcoded core filters are defined using the plugin
framework now.

Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>

Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>

Pass role_attr_flags a list of comma separated role
attributes when creating or updating a user.

The config file incorrectly mentions the --private-key-file flag.
Should be --private-key

If PasswordAuthentication is enabled (which is the default) ansible 
will spawn (multiple) ssh's with a password-prompt which corrupts 
the terminal, and cannot be properly used.

So it is better to not allow for password-based authentication using 
-c ssh. The result is that authentication fails but Ansible 
continues to work

Moved inventory scripts to the ansible/ansible-plugins repo so they can be updated independent of release.

The global config file is loaded from /etc/ansible, not /etc

Add ability to store and access module results later on in the play.  See examples/playbooks/register_logic for details.