Use new python script to manage stacks

This release introduces manage-cfn - a Python script to help keep track of the stacks across multiple regions and AWS accounts, as well as "tail" stack updates and extract information from the YAML configuration.

It also changed the default used regions to more "common" ones in North America (Virginia, Ohio and Oregon)

Initial release

Initial fully working release. It uses Bash and Python scripts to build CloudFormation templates and deploy them.