Add a Chef::Audit::Controls object for 'controls'
Add audit mode stub.
Add comments.
Merge branch 'audit-mode' of github.com:opscode/chef into mcquin/controls_group_object

Conflicts:
	lib/chef/audit/runner.rb
Merge branch 'mcquin/controls_group_object' of github.com:opscode/chef into mcquin/include-recipe-test
Wrap in control block until we get top-level tests working.
Use a central runner
Merge branch 'mcquin/controls_group_object' of github.com:opscode/chef into mcquin/include-recipe-test
Fix typo
Add recipes to test include_recipe, multiple controls blocks