- Removed "shell command" for setup work
- Added support for bootstrap
- Added ability to create a cluster
- Added the following properties to qubole runner config:

    create_cluster: true
    cluster_label: mrjobtest
    master_instance_type: c1.xlarge
    slave_instance_type: c1.xlarge
    initial_nodes: 2
    max_nodes: 10
    aws_region: us-east-1
    slave_request_type: ondemand
    node_bootstrap_name: node_bootstrap1.sh