* 0.1.0 Initial implementation

* 0.1.2 Add extra_vars, only_tags and skip_tags to PlayBook.factory method.

* 0.1.3 Add get_playbooks method which takes a directory and kwargs for the playbooks
        and returns a list of PlayBooks.

* 0.1.4 Change PlayBook.factory method's check variable to default to False.

* 0.1.5 Update Ansible version to address a bug in the yum module.

* 0.1.6 Add subspace.cache.bust method so hostnames can be reused in
  	the cloud. Add support for __all__. Import get_playbooks into subspace
	module.