This introduces the Inventory class.

Playbook uses the internals of Runner to limit the number of hosts to poll
asynchronously. To accomodate this, Inventory can be restricted to specific
hosts.

Add support for specifying sudo passwords to both ansible & playbook.  Nopasswd sudo is no longer required.

/bin/ansible async fixes

comment typos

Allow playbook to take --connection=local for easier reuse of playbook in kickstart w/o specifying connection: in
the playbook itself.  Both work.

is not specified.  This will help for users that don't have prerequisites installed
(like python-simplejson on old RHEL) and do not know to run -D.

Make use of LocalConnection explicit

Add selinux support to file module - issue #46

Merge the SortedOptParser bits and debug attribute commits into
localconnection.

Conflicts:
	bin/ansible
	lib/ansible/playbook.py
	lib/ansible/runner.py
	lib/ansible/utils.py

This adds the options: seuser, serole, setype, and serange to the file
module.  If the python selinux module doesn't exist, this will set
HAVE_SELINUX to False and punt in the related modules.

This takes the options the user provides and applies those to the
default selinux context as provided from matchpathcon().  If there is no
default context, this uses the value from the current context.  This
implies that if you set the setype and later remove it, the file module
will rever the setype to the default if available.

Simplify playbook tests so things are not timing dependent in the poll section, which is leading to tests
not being consistent between runs, even though there wasn't an error.  Now we'll just check the final change
counts, which should be just as solid and lead to less churn in the events file.

Some minor code shortening.  Added a test to TestRunner.

Fetch Module

This adds transport variable to playbook.py.  It can be set with
'connection' in the playbook file.

Update test file -- we probably should not include the poll as the number of polls is changing between test
runs (that's ok, it's not intended to be realtime accurate)

Conflicts:
	bin/ansible
	bin/ansible-playbook
	lib/ansible/utils.py

Allow variables coming in from the playbook and the API to be expressed as dictionaries throughout their full life cycle
such that nested data can be made available in templates and playbooks.

Raise exception if effective uid of process is not the same as
remote_user.