- Implement create_tags, describe_tags, and delete_tags endpoints
- Clusters, Parameter Groups, Security Groups, Snapshots, and Subnet Groups can all be tagged
- Test Suite updated
- Minor clean-up of restore_from_cluster_snapshot endpoint
- Miscellaneous typo fixes
- Implement create_cluster_snapshot endpoint
- Implement describe_cluster_snapshots endpoint
- Implement delete_cluster_snapshot endpoint
- Implement restore_from_cluster_snapshot endpoint
- Implement limited support for describe_tags endpoint
- Correctly serialize errors to json (for boto) or xml (for boto3)
- Simulate cluster spin up by returning initial status as 'creating' and subsequent statuses as 'available'
- Fix issue with modify_cluster endpoint where cluster values get set to None when omitted from request
- Add 'Endpoint' key to describe_clusters response syntax
