v0.2

Version v0.2 has been tested.

Changes made:

• The whole process is now automated. The script create_json.py will create a json file, upload to s3, launch an instance that executes the workflow, sends logs to s3 and self-terminates. It uses the .tibanna.config file for storing relatively invariant parameters (e.g. reference bucket name, AMI, keyname, etc) and takes input files, parameters, etc as command-line options. It also adds the launched instance information to a job_list file to enable easier tracking.
• minor change in the json format. (the previous format may not work especially for a multi-layer cwl)