Changed caching mechanism to memoize on methods that retrieve AMIs from API
Removed EB extension that set IAM creds as env variables. Relying on IAM Roles instead

Allowing eb files

Adding beanstalk config
Create LICENSE

More gitignore changes

CloudFormation template to create the IAM Role that the Beanstalk environment should run in

Removed EB extension that set IAM creds as env variables. Relying on IAM Roles instead