first attempt to deploy collectd with ansible
Ansible deploy_collectd improvements

- Add helper to capture stdout/stderr streams
- Capture stdout for deploy_collectd ansible playbook
- Deprecate 'dry' param for get_stats
- Finally disable ssh strict host key checking for ansible
Undeploy collectd with ansible playbook
make extra_vars optional in run_playbook
fix typo
Use ansible to enable monitoring upon machine creation
Remove dry=true parameter from manual monitoring call and
remove second enable monitoring call on confirmation
Add sudo to manual deploy collectd command
remove redundant import
Remove forgotten import
Merge pull request #266 from mistio/deploy_collectd

Enable and disable monitoring using ansible playbooks