v3.0.0

3.0.0

Thanks to @Russell-IO for helping with these changes.

• Internal refactoring.
• More tests added (but lots more needed).
• Improved debug output and explained up front how variables are set.
• Removed aws_profile_parser and used environment variables instead to unify
  the AWS CLI and terraform calls.

ROADMAP:

• Merge @mhlias changes that implements assumed-role support.