chef:build task -- just bootstraps n machines with a role
get chef/build in the default tasks
refactor scheduler use in tasks.
use with_scheduler in other places.
honor the auto-save flag and use it in test:recipes
Merge branch 'refactors' into new_features
fit chef:build to use new with_scheduler stuff.
using the new knife provision helper from chef-workflow
Merge branch 'refactors' into new_features
refactor chef:build to use new .. refactors
Merge branch 'master' into refactors
Merge branch 'refactors' into new_features
chef:converge -- manually converge a server group
chef:info tasks to display information.
move chef:show_config to chef:info:config
first stab at namespace refactors
Merge branch 'refactors' into new_features

Conflicts:
	lib/chef-workflow/tasks/chef/show_config.rb
remove show_config from require list
qualify namespace for SSHHelper
namespace refactors for the changes in the new_features branch