First pass at an Ansible config generator
First pass at an Ansible config generator
Merge branch 'feature/ansible-config-generator' of https://github.com/hpcloud-mon/monasca-installer into feature/ansible-config-generator

Conflicts:
	monasca_installer/monasca_config.yaml.example
Simplification and cleanup:

- Remove option for multiple clusters
- Fix 'args' bit duplicated
- Fix exiting 1 in all cases
- Let exception bubble up rather than exit(1) everywhere
- Change passwords for safer HTTP basic auth (RFC3986 sec2.3)
- Arg parsing outside of class
- Single write to 'hosts' file
Merge pull request #1 from hpcloud-mon/feature/ansible-config-generator

Feature/ansible config generator