Add tests for new advanced inventory features (groups of groups, group variables) in the default INI format file.

Fix playbooks such that they work with external inventory scripts.  We really want to find out why the 'all'
group isn't available, but group vars don't make sense for external inventory anyway.

Next up: YAML format.

format compatible with this still, and add some tests for INI-style groups of groups
and variables.

TODO: logrotate script and append to log instead.

in included files can still be templated just like top level playbooks.  Resolves
some issues about statements being evaluated before facts were available

This eliminates the creation of runner and playbook instances and just
invokes the processes ansible and ansible-playbook.

A first stab at a pull-based model for ansible.  This does two things:
    1. Invoke the git module via Runner to set up a git repository on the
       localhost.  It sets up Runner to use transport='local' and forces
       the inventory to just 'localhost'.
    2. Run any playbooks provided.  By default, this wants to run the
       playbook local.yml.  This also sets transport='local' and sets
       the host_list to a list: localhost, fqdn, and hostname.
The reason for setting the host_list and not using override_hosts is
because there may be plays in the playbook that are not meant for a
specific host.  That is, if the git repository is for the entire site
and not host-specific, you don't want to override hosts and apply all
plays to any given host.  This has the downside of potentially running a
play three times if the play is defined for 'hosts: all'.

Playbook will install ansible, create directory where git checkout goes,
and set up a cron job to run ansible-pull.

Define 'inventory_hostname' variable for hosts.

Group order in user module should not matter.

Groups are not necessarily returned in the defined order, especially when the user already existed before ansible started managing the system.

applied to every host and available all over
they are read in so that ones defined first can be used to define
the later ones.

Remove command timeout.

Adds support for Ubuntu style update-rc.d

_find_binaries now sets the right globals
Binaries are now properly populated (reverse path/binary for loops)

Checks if update-rc.d (Ubuntu) or chkconfig (RHEL) should be used.
Adds basic bin path search for those binaries
Adds 'enable' and 'disable' options for 'enable' command since it's the
arguments that update-rc.d uses (this might be somewhat confusing to
have a command line with 'enable=enable', but probably mkes sense for
Ubuntu users).
Allows use of mixed case for 'list' and 'state' commands.

Updates for git module

Set default selinux context with '_default'

test-module arguments file location

This removes the 'context' option and replaces it with checks for
'_default' value for seuser, serole, setype, or (maybe) selevel.
If '_default' is provided *and* there is a default context for the given
file, this will set the file context to the available default.

Resets working tree to what is in HEAD and discards any
uncommitted changes.

This adds exit_json() and fail_json() to git module.  It also sets
version to 'HEAD', if not provided.

Adding a missing '~' to use the user's home directory instead of the root file system for the module arguments

Add 'system' option for user and group modules